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A method for sending and receiving uplink control information, and a related device

A technology for controlling information to be sent, applied in the field of receiving methods and related devices, and methods for sending uplink control information, capable of solving problems such as lack of periodic CSI information, affecting UE scheduling accuracy, etc.

Active Publication Date: 2020-04-14
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, when the number of carriers configured by the eNB is large, a large amount of periodic CSI information will be discarded, which will cause the lack of periodic CSI information on a large number of carriers, and affect the accuracy of eNB's scheduling of UEs.

Method used

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  • A method for sending and receiving uplink control information, and a related device
  • A method for sending and receiving uplink control information, and a related device
  • A method for sending and receiving uplink control information, and a related device

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Embodiment Construction

[0292] In the LTE system, a resource block (resource block, RB) of a transmission signal includes time domain resources and frequency domain resources. The smallest unit of time domain resources is an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, and the smallest unit of frequency domain resources is a subcarrier. In the current LTE system, a resource block includes 12 subcarriers in the frequency domain. The time domain symbols described in the embodiments of the present invention may be OFDM symbols in the LTE system, but are not limited thereto. For example, they may also be symbols in the time domain in other systems or minimum units in the time domain in other forms.

[0293] LTE defines several different PUCCH formats (shown in Table 1).

[0294] Table 1: Introduction to PUCCH format

[0295]

[0296] The PUCCH format format 1 carries SR information. UE only needs to send SR when requesting uplink resources; o...

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Abstract

An embodiment of the present invention provides a method for sending uplink control information, including: the UE determines that the uplink control information to be sent in the uplink subframe includes channel state information CSI and SR, then the UE determines that the CIS and SR are used to send the The first uplink channel resource is a channel resource for sending CSI in the format of sending SR, then the UE can use the first uplink channel resource of the uplink subframe Send the CSI and SR on the In this way, the UE sends CSI and SR on the same first uplink channel resource of the same uplink subframe, which not only ensures that the eNB can obtain the UE's scheduling request SR, allocate uplink scheduling resources for the UE, but also accurately obtain each The CSI of the carrier improves the accuracy of the eNB in ​​scheduling UE resources.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for sending and receiving uplink control information and a related device. Background technique [0002] The transmission of services in the Long Term Evolution (English abbreviation: LTE) system is scheduled based on the base station (eNodeB, English abbreviation: eNB). The basic time unit of scheduling is a subframe, and a subframe includes multiple time domain symbols. . The specific scheduling process is that the base station sends control information on a control channel, such as a physical downlink control channel (Physical Downlink Control Channel, English abbreviation: PDCCH) or an enhanced physical downlink control channel (English abbreviation: EPDCCH). It can carry the scheduling information of the Physical Downlink Shared Channel (Physical Downlink Shared Channel, English abbreviation: PDSCH) or the Physical Uplink Control Channel (Physical Uplink Control C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W72/04H04L5/001H04L5/0048H04L5/0057H04W72/21H04L5/0053H04W88/02
Inventor 闫志宇官磊吕永霞
Owner HUAWEI TECH CO LTD
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