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A UCI sending method, receiving method, terminal and base station

A sending method and terminal technology, applied in the fields of terminals and base stations, receiving methods, and UCI sending methods, can solve problems such as UCI discarding, system transmission performance degradation, and insufficient number of encoded bits, so as to avoid discarding and improve system transmission performance Effect

Active Publication Date: 2021-10-26
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the PUSCH uses frequency hopping transmission, using the existing method to calculate the UCI transmitted in the frequency hopping resource of each hop, it may occur that the RE resources used for UCI transmission of the PUSCH in the frequency hopping resource of a hop are not enough to carry the UCI. The number of coded bits allocated by UCI in the frequency hopping resources of this hop, resulting in UCI being discarded and system transmission performance degraded

Method used

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  • A UCI sending method, receiving method, terminal and base station
  • A UCI sending method, receiving method, terminal and base station
  • A UCI sending method, receiving method, terminal and base station

Examples

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example 1

[0684] Assuming that PUSCH is frequency hopping transmission, the number of transmission layers is 1, the modulation order is 2, and occupies 10 OFDM symbols. Each hop contains 5 OFDM symbols. In the first hop, DMRS occupies the fourth OFDM symbol. The DMRS in the second hop occupies the first OFDM symbol. If HARQ-ACK and CSI are transmitted on the PUSCH with UL-SCH, HARQ-ACK contains 96 coded bits and occupies 48 RE resources, and CSI occupies 52 coded bits and occupies 26 RE resources. Determine the mapping resources of HARQ-ACK and CSI in each hop in the following manner, and the mapping results are as follows Figure 5 Shown:

[0685] For HARQ-ACK, the number of available RE resources in the first hop is 12, the number of available RE resources in the second hop is 36, and the number of available RE resources in the first hop is smaller than that of the second The number of available RE resources in the hop, and the first hop is determined as the target hop for HARQ-ACK....

example 2

[0688] Assuming that PUSCH is frequency hopping transmission, the number of transmission layers is 1, the modulation order is 2, and occupies 10 OFDM symbols. Each hop contains 5 OFDM symbols. In the first hop, DMRS occupies the fourth OFDM symbol. The DMRS in the second hop occupies the first and fifth OFDM symbols. If A-CSI (Aperiodic Channel State Information, aperiodic channel state information) is transmitted on PUSCH without UL-SCH, CSI part 1 contains 152 coded bits, occupying 76 RE resources, CSI part 2 contains 16 coded bits, Occupies 8 RE resources. The mapping resources of CSI part 1 and CSI part 2 in each hop can be determined in the following manner. The mapping result is as follows Figure 5 Shown:

[0689] For CSI part 1, the number of available RE resources in the first hop is 48-0 (the number of RE resources occupied by HARQ-ACK in the first hop) = 48, and the available RE resources in the second hop The number of resources is 36-0 (the number of RE resourc...

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Abstract

The present invention provides a UCI sending method, a receiving method, a terminal and a base station. The UCI sending method includes: determining a target hop in the frequency hopping resource of the PUSCH, wherein the target hop is in the frequency hopping resource of the PUSCH, provided A hop with the least resources for transmitting a specific type of UCI; according to the resources for transmitting the specific type of UCI provided in the frequency hopping resources of the target hop and the total number of encoded bits of the specific type of UCI, determine the hop The number of encoded bits transmitted by the specific type of UCI in the frequency hopping resource of each hop of the PUSCH; according to the number of encoded bits transmitted by the specific type of UCI in the frequency hopping resource of each hop of the PUSCH, in the The specific type of UCI is sent on the frequency hopping resource of the PUSCH. The hop that can provide the least resources for transmitting a specific type of UCI determines the number of encoded bits transmitted by a specific type of UCI in each hop, ensuring that the specific type of UCI allocated in each hop can be transmitted to avoid UCI being discarded, thereby Improve system transmission performance.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a UCI (Uplink Control Information, Uplink Control Information) sending method, receiving method, terminal and base station. Background technique [0002] With the development and changes of mobile communication service requirements, many organizations such as ITU (International Telecommunication Union, International Telecommunication Union) have begun to study NR (New RAT, a new wireless communication system), such as 5G NR (5Generation New RAT, fifth generation wireless Communication Systems). The NR system supports multiplex transmission of UCI (Uplink Control Information, uplink control information) on PUSCH (Physical Uplink Shared Channel, physical uplink shared channel). [0003] When PUSCH uses frequency hopping transmission, if there is UL-SCH (Uplink Shared Channel, uplink shared channel) data transmission in PUSCH, the number of encoded bits of UCI ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0012H04L5/0044H04L5/0046H04L5/0048H04L5/0053H04L5/0055H04L5/0057H04L5/00H04W72/04
Inventor 司倩倩高雪娟
Owner DATANG MOBILE COMM EQUIP CO LTD