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Method and device for transmitting feedback control information in multi-carrier mode

A technology of feedback control and transmission method, which is applied in the field of transmission of feedback control information, which can solve the problems of reducing base station coverage and increasing the CM value of the uplink, and achieve the effect of increasing coverage and reducing CM value

Active Publication Date: 2013-04-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a method and device for sending feedback control information in a multi-carrier mode to solve the problem in the prior art that two HS-DPCCH channels send ACK / NACK messages and CQI information to the base station at the same time. The CM value of the road increases, thereby reducing the coverage of the base station

Method used

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  • Method and device for transmitting feedback control information in multi-carrier mode
  • Method and device for transmitting feedback control information in multi-carrier mode
  • Method and device for transmitting feedback control information in multi-carrier mode

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Embodiment 1

[0039] In this embodiment, only one HS-DPCCH channel is used to carry the feedback control information of two carriers, and the user terminal uses a part of time slots of one HS-DPCCH channel to send ACKs of two carriers (main carrier and auxiliary carrier) to the base station / NACK message, using other time slots of the HS-DPCCH channel to send the CQI information of the two carriers to the base station. And the other HS-DPCCH channel does not send feedback control information.

[0040] A schematic diagram of the time slot transmission mode of the HS-DPCCH channel provided by this embodiment is as follows figure 1 As shown, in the first time slot of each 2ms subframe of the first HS-DPCCH channel, the joint ACK / NACK of the two carriers is sent, and the joint CQI information of the two carriers is sent in the second and third time slots, and this cycle repeats .

[0041] The data automatic retransmission process information (HARQ, Hybrid Automatic Repeat Request)-ACK of the ...

Embodiment 2

[0051] In this embodiment, the user terminal uses two HS-DPCCH channels to send the feedback control information of two carriers to the base station respectively, and one HS-DPCCH channel corresponds to sending the feedback control information of one carrier, but the two HS-DPCCH channels ACK / NACK messages and CQI are sent to stagger time slots or frames by setting time offsets.

[0052] A schematic diagram of the time slot transmission mode of the HS-DPCCH channel provided by this embodiment is as follows figure 2 As shown, the first time slot of the first 2ms subframe of the first HS-DPCCH channel sends the ACK / NACK message of the main carrier, and the second and third time slots of the first 2ms subframe send the CQI of the main carrier Information, the second 2ms subframe sends DTX (Discontinuous Transmission) information; the first 2ms subframe of the second HS-DPCCH channel sends DTX, and the first time slot of the second 2ms subframe sends For the ACK / NACK message of ...

Embodiment 3

[0065] In this embodiment, only one HS-DPCCH channel is used to carry the feedback control information of two carriers, and the user terminal uses a part of time slots or frames of one HS-DPCCH channel to send the feedback control information (including ACK / NACK message and CQI information), use other time slots or frames of the HS-DPCCH channel to send the feedback control information of another carrier (including ACK / NACK message and CQI information) to the base station. And the other HS-DPCCH channel does not send feedback control information.

[0066] A schematic diagram of the time slot transmission mode of the HS-DPCCH channel provided by this embodiment is as follows image 3 As shown, the first time slot of the first 2ms subframe of the first HS-DPCCH channel sends the ACK / NACK message of the main carrier, and the second and third time slots send the CQI information of the main carrier; the first HS-DPCCH The ACK / NACK message of the secondary carrier is sent in the f...

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Abstract

The invention provides a method and a device for transmitting feedback control information in a multi-carrier mode. The method mainly comprises the following steps: transmitting the feedback control information of a main carrier and a secondary carrier on an HS-DPCCH (high-speed dedicated physical control channel) channel; or transmitting the feedback control information in two HS-DPCCH channels, transmitting the same information in the feedback control information of the main carrier and the secondary carrier on the two HS-DPCCH channels respectively, and staggering transmitted time slots or frames mutually by setting different time offsets. The method and the device can reduce a CM (Connection management) value of an uplink and increase the coverage of a base station.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for sending feedback control information in a multi-carrier mode. Background technique [0002] With the rapid development of communication technology, Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access) system, as one of the mainstream technologies of the third generation mobile communication system, has been widely researched and applied all over the world. [0003] A research focus in WCDMA system is multi-carrier design, the data flow on different carriers of WCDMA system can be regarded as the data flow similar to multi-antenna. Currently, the multi-carrier uplink in the WCDMA system requires two High-Speed ​​Dedicated Physical Control Channel (HS-DPCCH, High-Speed ​​Dedicated Physical Control Channel) channels, the two HS-DPCCH channels are different in code channel allocation , which is the same...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18H04L1/06
Inventor 刘铮王宗杰李靖
Owner HUAWEI TECH CO LTD