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Transmitting and receiving methods of uplink control signaling and related equipment

A technology for controlling signaling and sending methods, which is applied in signaling distribution, forward error control use, wireless communication, etc., and can solve problems such as waste of resources

Active Publication Date: 2015-07-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Obviously, this kind of resource nesting is bound to introduce resource waste to the resource allocation of uplink control signaling, especially when the data packets of uplink control signaling are relatively large, resource waste will be more serious

Method used

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  • Transmitting and receiving methods of uplink control signaling and related equipment
  • Transmitting and receiving methods of uplink control signaling and related equipment
  • Transmitting and receiving methods of uplink control signaling and related equipment

Examples

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Embodiment 1

[0039] see figure 1 , which is a flowchart of an embodiment of a method for sending uplink control signaling in the present invention, including the following steps:

[0040] Step 101: The terminal independently performs data processing on the uplink control signaling and uplink data invoked by the base station;

[0041] In the process of sending uplink control signaling, data processing includes at least any one or combination of CRC, channel coding, scrambling, modulation, layer mapping, linear transformation and precoding.

[0042] It should be noted that the processing links and sequence included in the data processing in the present invention are the same as the processing links and sequence included in the data processing when sending uplink control signaling in the prior art, because different data processing in the prior art The included processing links and processing sequences are different. Therefore, the present invention does not specifically limit the entire dat...

Embodiment 2

[0067] For the uplink control signaling and uplink data transmitted on different resource block groups in the resource block pair system bandwidth, a series of independent processing procedures for the uplink control signaling and uplink data will be described in detail below. see Figure 4 , which is a signaling flowchart of another embodiment of a method for transmitting uplink control signaling in the present invention. Include the following steps:

[0068] Step 401: The terminal independently adds CRC to the uplink control signaling and uplink data;

[0069] Step 402: The terminal independently performs channel coding on the uplink control signaling and uplink data;

[0070] Wherein, when performing channel coding processing, the terminal determines the number of REs (Resource Elements, resource units) in the first resource block group carrying uplink control signaling and the second resource block group carrying uplink data respectively. and the channel coding rate of ...

Embodiment 3

[0114] Corresponding to the above method for sending uplink control signaling, the embodiment of the present invention further provides a method for receiving uplink control signaling. see Figure 5 , which is a flowchart of an embodiment of a method for receiving uplink control signaling in the present invention, including the following steps:

[0115] Step 501: the base station receives the time-domain signal including uplink control signaling and uplink data sent by the terminal, and converts the time-frequency into a frequency-domain signal;

[0116] Step 502: The base station performs resource mapping on the converted frequency domain signal to obtain uplink control signaling and uplink data. The resource mapping means extracting uplink control signaling from different resource block groups of the system bandwidth and uplink data, the resource block group consists of at least one resource block.

[0117] Preferably, in the communication system involved in the present in...

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Abstract

Embodiments of the present invention disclose methods and related devices for sending and receiving uplink control signaling. On a terminal side, the terminal performs data processing and resource mapping separately for the uplink control signaling and uplink data that are scheduled by a base station, so as to obtain a frequency domain signal, where the performing resource mapping separately refers to mapping the data-processed uplink control signaling and uplink data to different resource block groups in a system bandwidth separately; and the terminal performs frequency-to-time conversion for the obtained frequency domain signal to obtain a time domain signal, and then sends the signal to the base station. Correspondingly, on a base station side, the base station receives the time domain signal from the terminal; and the base station performs frequency domain conversion and resource demapping for the received time domain signal to obtain the uplink control signaling and the uplink data, and performs data processing for the uplink control signaling and the uplink data separately, where the resource demapping refers to extracting the uplink control signaling and the uplink data from the different resource block groups in the system bandwidth. According to the embodiments of the present invention, the resource waste problem can be avoided.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for sending and receiving uplink control signaling and related equipment. Background technique [0002] In the LTE system, before the base station performs uplink scheduling, the terminal will measure the quality of the downlink channel, and feed back the measured CSI (Channel State Information, channel state information) to the base station as uplink control signaling, so that the base station can control the Signaling performs uplink scheduling. Wherein, the uplink control signaling at least includes: CQI (Channel Quality Indicator, channel quality indicator), PMI (Precoding Matrix Indicator, precoding vector indication), RI (Rank Indicator, rank indication) and HARQ (Hybrid Automatic Repeat Request, hybrid automatic retransmission request). The feedback mode of the terminal includes periodic feedback and aperiodic feedback. When aperiodic fee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W72/04
CPCH04L5/0053H04L1/0073
Inventor 刘江华刘昆鹏
Owner HUAWEI TECH CO LTD