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A method and device for transmitting uplink control information

A technology of control information and line control, which is applied in the direction of transmission path sub-channel allocation, transmission system, digital transmission system, etc., and can solve the problems that the uplink control information cannot be transmitted in time and correctly, and the terminal cannot be guaranteed

Active Publication Date: 2020-10-09
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and device for transmitting uplink control information, which is used to solve the problem in the prior art that if the current terminal transmits the uplink control channel on an unlicensed carrier, it cannot guarantee that the terminal can access the channel at any time, and there is Problems that may cause uplink control information to be unable to be transmitted correctly in time

Method used

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  • A method and device for transmitting uplink control information
  • A method and device for transmitting uplink control information
  • A method and device for transmitting uplink control information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0225] The terminal aggregates 10 carriers, where carrier 1 is a licensed carrier, and carriers 2 to 10 are unlicensed carriers. Carriers 1-5 are carrier group A, carriers 6-10 are carrier group B, carrier 1 is the main carrier in carrier group A, and carrier 6 is the main carrier in carrier group B. The base station configures carrier 6 as the carrier for uplink control information transmission, and the terminal needs to perform uplink control information feedback for carrier 6 and carrier 10. The specific implementation process is described according to the following different situations:

[0226] Case 1: The terminal performs LBT detection on carrier 6, and the LBT detection result on carrier 6 indicates that the carrier is idle, then the uplink control information on carrier 6 transmits the uplink control information of carrier 6 and carrier 10;

[0227] Correspondingly, the base station performs DTX detection on the carrier 6, and receives the uplink control information a...

Embodiment 2

[0234] The terminal aggregates 10 carriers, where carrier 1 is a licensed carrier, and carriers 2 to 10 are unlicensed carriers. Carriers 1-5 are carrier group A, carriers 6-10 are carrier group B, carrier 1 is the main carrier in carrier group A, and carrier 6 is the main carrier in carrier group B. The base station configures carrier 6 as a carrier for transmitting uplink control information, and configures carriers 6-10 as a switching carrier group. The terminal needs to perform uplink control information feedback for carrier 6 and carrier 10, and perform the following process:

[0235] Situation 1: The terminal performs LBT detection on carriers 6 to 10, and the LBT detection result on carrier 6 indicates that the carrier is idle, so the uplink control information is transmitted on carrier 6;

[0236] Correspondingly, the base station performs DTX detection on the carrier 6, and receives the uplink control information after detecting the transmission of the uplink control...

Embodiment 3

[0244] The terminal aggregates 10 carriers, where carrier 1 is a licensed carrier, and carriers 2 to 10 are unlicensed carriers. Carriers 1-5 are carrier group A, carriers 6-10 are carrier group B, carrier 1 is the main carrier in carrier group A, and carrier 6 is the main carrier in carrier group B. The base station configures carrier 6 as a carrier for transmitting uplink control information, and configures carriers 6 to 10 as a carrier group for switching uplink control information. The terminal needs to perform uplink control information feedback for carrier 1, carrier 2 / 6 and carrier 10, and perform the following process:

[0245] Case 1: The terminal feeds back the uplink control information of carrier 1 and carrier 2 on carrier 1, and performs LBT detection on carriers 6-10. If the LBT detection results on carriers 6-10 are all busy carriers, the carrier is also transmitted on carrier 1. 6 and carrier 10 uplink control information. The uplink control information of ca...

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PUM

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Abstract

The present invention relates to the field of wireless communication technology, in particular to a method and device for transmitting uplink control information, which is used to solve the problem in the prior art that if a terminal transmits an uplink control channel on an unlicensed carrier, it cannot be guaranteed that the terminal can The channel can be accessed, and it may cause the problem that the uplink control information cannot be transmitted correctly in time. In the embodiment of the present invention, after the terminal fails to perform LBT detection on the uplink control information transmission carrier, it can switch to other unlicensed carriers or licensed carriers with successful LBT detection to transmit uplink control information, avoiding the uplink control information being unable to be timely due to the failure to seize the channel Correct transmission occurs.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and equipment for transmitting uplink control information. Background technique [0002] In order to support LTE (Long Term Evolution, long-term evolution) system deployment on unlicensed spectrum resources for transmission, a licensed LAA (Licensed Assisted Access, carrier-assisted access) manner is currently defined. That is, when a terminal uses an unlicensed carrier, it must first access an authorized main carrier, and the unlicensed carrier can only be used as a secondary carrier. [0003] There is no specific application system planned for the unlicensed spectrum, and it can be shared by multiple wireless communication systems such as Bluetooth and WiFi. Multiple systems use the shared unlicensed spectrum resources by preempting resources. In order to ensure the transmission performance of the LTE terminal and better use the unlicensed frequ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0053H04W72/21H04L1/16
Inventor 司倩倩高雪娟潘学明王加庆
Owner DATANG MOBILE COMM EQUIP CO LTD