Transmission method and device for uplink control information in carrier aggregation system

A technology for control information and carrier aggregation, applied in wireless communication, electrical components, etc., can solve the problem of discarding uplink control information, and achieve the effect of enhancing user experience, improving data throughput, and satisfying low-latency characteristics.

Active Publication Date: 2011-08-24
北京万海云科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once a collision occurs, the UE will inevitably select a part of the uplink control information to delay sending or even discard

Method used

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  • Transmission method and device for uplink control information in carrier aggregation system
  • Transmission method and device for uplink control information in carrier aggregation system
  • Transmission method and device for uplink control information in carrier aggregation system

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Embodiment Construction

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] For the transmission method of uplink control information in the carrier aggregation system provided by Embodiment 1 of the present invention, refer to figure 2 , including:

[0027] 21: Divide each cell configured for a user equipment (User Equipment, UE) into at least two uplink control cell groups;

[0028] 22: Determine an uplink control reference cell in each of the uplink control cell groups, and configure a physical uplink control channel (Physical Uplink Control Channel, P...

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Abstract

The invention discloses a transmission method and device for uplink control information in a carrier aggregation system, relates to the technical field of wireless communication, can ensure that all cell uplink control information is transmitted to a base station in time, better meets the low time-delay characteristic of high speed data transmission, improves the data throughput of a system, and enhances the user experience. The embodiment of the invention provides the transmission method for the uplink control information in the carrier aggregation system, and the transmission method comprises the steps as follows: each cell equipped for UE is divided into at least two uplink control cell groups; one uplink control reference cell is determined in each uplink control cell group, and is equipped with a PUCCH (physical uplink control channel); the uplink control information transmitted by the PUCCH of each uplink control reference cell is received, and comprises the uplink control information of all of the cells in the uplink control cell group to which the uplink control reference cell belongs.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for transmitting uplink control information in a carrier aggregation system. Background technique [0002] The Third Generation Partnership Project (The Third Generation Partner Project, 3GPP) proposed new functions such as carrier aggregation in Release 10, which can support user equipment (User Equipment, UE) to simultaneously perform uplink and downlink data transmission on multiple cells , to obtain a higher peak rate through a larger bandwidth (for example, the maximum bandwidth can reach 100MHz). [0003] A UE can be configured to work in a primary cell (Primary Cell) and several secondary cells (Secondary Cell) at the same time, and each cell it works in can contain one downlink component carrier, zero or one uplink component carrier, this multi-cell The operation may also be called carrier aggregation (Carrier Aggregation) or ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/14
Inventor 常永宏李国荣
Owner 北京万海云科技有限公司
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