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Control information transmission method, terminal and network side equipment, communication system

A technology of network side equipment and transmission method, applied in transmission systems, digital transmission systems, modulated carrier systems, etc., can solve the problems of improving peak-to-average ratio and reducing transmission power efficiency.

Active Publication Date: 2021-08-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the same user equipment (User equipment, UE), the base station may allocate SR resources and ACK / NACK resources for the UE in the same subframe, if the UE both sends SR signals on the SR resources in the subframe and The ACK / NACK signal is sent on the ACK / NACK resource in the subframe, and the SR signal and the ACK / NACK signal are superimposed, which will increase the peak-to-average ratio and reduce the transmission power efficiency

Method used

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  • Control information transmission method, terminal and network side equipment, communication system
  • Control information transmission method, terminal and network side equipment, communication system
  • Control information transmission method, terminal and network side equipment, communication system

Examples

Experimental program
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Embodiment approach 1

[0082] Embodiment 1, among the bit combinations corresponding to the modulation symbols sent in the SR resources, there are at least two bit combinations in which the SR bits are different, and at least two bit combinations in which the ACK / NACK bits are different.

Embodiment approach 2

[0083] Embodiment 2, in the bit combinations corresponding to the modulation symbols sent in the ACK / NACK resources, there are at least two bit combinations with different SR bits, and at least two bit combinations with different ACK / NACK bits.

Embodiment approach 3

[0084] Embodiment 3, in the bit combination corresponding to the modulation symbol sent in the SR resource, there are at least two bit combinations in which the SR bits are different, and at least two bit combinations in which the ACK / NACK bits are different; and the ACK / NACK resource Among the bit combinations corresponding to the modulation symbols sent in , there are at least two bit combinations with different SR bits, and at least two bit combinations with different ACK / NACK bits.

[0085] In an embodiment, the mapping relationship mentioned in the above embodiments may be stored in the form of a table, for example. It can also be stored in other forms.

[0086] The mapping relationship may reflect the transmitted modulation symbols corresponding to each bit combination and the resources required to transmit the modulation symbols. The following are two specific implementations of the mapping relationship:

[0087] Form 1. In an embodiment, the mapping relationship may ...

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Abstract

The invention discloses a control information transmission method, a terminal, a network side device, and a communication system. The method includes: the terminal device determines the modulation symbol corresponding to the bit combination to be transmitted and the resources used to send the determined modulation symbol according to the preset mapping relationship between the bit combination and the modulation symbol, and in the mapping relationship: each bit combination Corresponding to a modulation symbol that needs to be sent on the first resource or a modulation symbol that needs to be sent on the second resource; in the bit combination corresponding to the modulation symbol sent on at least one of the first resource and the second resource: The SR bits of at least two bit combinations are different, and the ACK / NACK bits of at least two bit combinations are different; the terminal device sends the modulation symbol corresponding to the bit combination to be transmitted on the determined resource. Therefore, simultaneous transmission of data on two resources in the same subframe is avoided, thereby reducing the peak-to-average ratio and improving transmission power efficiency and coverage performance.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, to a control information transmission method, a terminal, a network side device, and a communication system. Background technique [0002] In a typical wireless communication network (such as LTE), an uplink control channel (Physical Uplink ControlChannel, PUCCH) is used to transmit scheduling request (Scheduling Request, SR), ACK / NACK and other uplink control information (Uplink Control Information, UCI). Among them, the time-frequency and code domain resources of the SR are usually configured by high-level signaling sent by the base station, and the ACK / NACK is configured by the Physical Downlink Control Channel (PDCCH) or the Enhanced Physical Downlink Control Channel (EPDCCH) Corresponding time-frequency and code domain resources. For the same user equipment (User equipment, UE), the base station may allocate SR resources and ACK / NACK resources for the UE in the same ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16H04L5/00H04W72/04
CPCH04L1/0023H04L1/1607H04L1/1671H04L5/0055H04W72/044H04W72/20H04L1/00H04L5/00H04W72/04H04W72/23H04L27/2601H04W72/542
Inventor 吴艺群陈雁
Owner HUAWEI TECH CO LTD