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Information transmission method and equipment in scene with multiple antenna ports

An antenna port and information transmission technology, applied in the field of information transmission, can solve the problem of large PUCCH resource overhead and achieve the effect of reducing resource overhead and ensuring performance gain

Active Publication Date: 2014-07-16
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide an information transmission method and device in a multi-antenna port scenario, which solves the problem of excessive PUCCH resource overhead in the transmission process in a multi-antenna port scenario in the prior art solution

Method used

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  • Information transmission method and equipment in scene with multiple antenna ports
  • Information transmission method and equipment in scene with multiple antenna ports
  • Information transmission method and equipment in scene with multiple antenna ports

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Embodiment 1

[0115]Embodiment 1. It is assumed that the UE adopts PUCCH format 3 to transmit uplink control information, and adopts a 2-antenna port transmission manner.

[0116] The specific process is as Figure 7 As shown, it is a schematic flowchart of an information transmission method in a specific multi-antenna port application scenario proposed by an embodiment of the present invention, which specifically includes the following steps:

[0117] Step S701, the base station determines a precoding vector from the precoding vector set corresponding to each time slot (such as [+1+1], [+1-1]) as the precoding vector used for multi-antenna port transmission in the time slot , and send it to the UE through high-layer signaling or the 2-bit precoding vector indication field in the PDCCH signaling.

[0118] Based on the above description, for the method using independent indication, the specific processing scheme in this step is that the base station indicates the precoding vector correspond...

Embodiment 2

[0135] Embodiment 2 It is assumed that the UE uses PUCCH format 1b with channel selection to transmit 4-bit ACK / NACK feedback information, and adopts a 2-antenna port transmission mode.

[0136] The specific process is as Figure 8 As shown, it is a schematic flowchart of an information transmission method in a specific multi-antenna port application scenario proposed by an embodiment of the present invention, which specifically includes the following steps:

[0137] Step S801, the base station determines a precoding vector from the precoding vector set corresponding to each time slot as the precoding vector used for multi-antenna port transmission in the time slot, and performs 2-bit precoding in high-level signaling or PDCCH signaling The Vector Indication field is sent to the UE.

[0138] Also based on the above description, for the method of using independent indication, the specific processing scheme in this step is that the first bit in the base station’s 2-bit indicati...

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Abstract

Disclosed are an information transmission method and device in a multi-antenna port scenario. By applying the technical solution in the embodiments of the present invention, for terminal equipment with multi-antenna port transmission, a pre-coding vector of an uplink control channel at a multi-antenna port is obtained according to the configuration information sent by a base station, and the corresponding data after being pre-coded by the pre-coding vector is sent using the same PUCCH resource at each antenna port, and therefore, by configuring a pre-coding vector applied to a multi-antenna port in each timeslot rationally, the performance gain of the PUCCH transmit diversity is ensured on the basis of reducing the overhead of the PUCCH resource as far as possible.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to an information transmission method and device in a multi-antenna port scenario. Background technique [0002] In LTE-A (Long Term Evolution Advanced, Advanced Long Term Evolution) Rel (Release, version)-10, PUCCH (Physical Uplink Control Channel, physical uplink control channel) format (format) 3 can be used for transmission of uplink control information. [0003] Such as figure 1 and figure 2 Shown is a schematic diagram of the transmission structure of PUCCH format 3 in the prior art. in, figure 1 It is a schematic diagram of the PUCCH format 3 transmission structure under the conventional CP (Normal Cyclic Prefix, normal cyclic prefix) in the prior art, figure 2 It is a schematic diagram of a PUCCH format 3 transmission structure under an extended CP (Extended Cyclic Prefix) in the prior art. D1 and D2 are useful information bits after bit scramblin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04L5/00H04L1/06H04L1/00
CPCH04B7/0417
Inventor 高雪娟林亚男沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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