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Channel measuring method and device

A channel measurement and quantity technology, applied in the field of communication, can solve the problem of unable to meet the increasing number of base station antenna ports.

Active Publication Date: 2016-10-05
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a channel measurement method and device to solve the problem that existing channel measurement schemes cannot meet the increasing demands of base station antenna ports

Method used

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Examples

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Embodiment 1

[0090] Such as figure 1 As shown, the flow chart of the channel measurement method provided by Embodiment 1 of the present invention includes the following steps:

[0091] S101: When it is necessary to configure the N-port pilot resources of the base station for the UE, configure L sub-pilot resources for the UE, and determine the configuration information of the L sub-pilot resources; wherein, each sub-pilot resource occupies the N port of the base station. At least one of the antenna ports, and the sum of the number of antenna ports occupied by the L sub-pilot resources is N; N and L are positive integers not less than 2.

[0092] In specific implementation, when it is necessary to configure the N-port pilot resource of the base station for the UE, according to the size of the N value, choose to configure one pilot resource or configure multiple sub-pilot resources, for example, if the N value is less than or equal to 8 , you can configure a pilot resource that occupies N a...

Embodiment 2

[0134] Such as image 3 As shown, it is a flow chart of the channel measurement method provided by Embodiment 2 of the present invention. This Embodiment 2 is introduced from the perspective of the UE side. The specific content that has been described in the above Embodiment 1 will not be repeated in this embodiment, including The following steps:

[0135] S301: Receive configuration information of L sub-pilot resources; wherein, each sub-pilot resource occupies at least one of the N antenna ports of the base station, and the total number of antenna ports occupied by the L sub-pilot resources is N, and N and L are A positive integer not less than 2.

[0136] Here, the configuration information of each sub-pilot resource includes one or more of the following information:

[0137] Index l of sub-pilot resources, where 1<=l<=L; resource index of sub-pilot resources; transmission power information; transmission period; subframe offset; port number information; used to indicate dif...

Embodiment 3

[0147] Such as Figure 4 As shown, the flow chart of the channel measurement method provided by Embodiment 3 of the present invention includes the following steps:

[0148] S401: When the base station needs to configure an N-port pilot resource for the UE, configure L sub-pilot resources for the UE, and determine the configuration information of the L sub-pilot resources; wherein, each sub-pilot resource occupies the N port of the base station. At least one of the antenna ports, and the sum of the number of antenna ports occupied by the L sub-pilot resources is N; N and L are positive integers not less than 2.

[0149] S402: The base station sends the determined configuration information of the L sub-pilot resources to the UE.

[0150] S403: The UE receives configuration information of L sub-pilot resources; wherein, each sub-pilot resource occupies at least one of the N antenna ports of the base station, and the total number of antenna ports occupied by the L sub-pilot resou...

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Abstract

The invention relates to a channel measuring method and device, belongs to the technical field of communication, and aims at satisfying the requirement of continuous increase of antenna ports of a base station. The method comprises that when pilot frequency resources of N ports of the base station need to be configured for UE, L sub pilot frequency resources are configured for the UE, configuration information of the L sub pilot frequency resources is determined, each sub pilot frequency resource occupies at least one of the N antenna ports of the base station, the total amount of the antenna ports occupied by the L sub pilot frequency resources is N, and either N and L represents a positive integer not lower than 2; and the determined configuration information of the L sub pilot frequency resources is sent to the UE, so that the UE carries out channel measurement on the pilot frequency resources of the N ports of the base station. Thus, the requirement of continuous increase of the antenna ports of the base station can be met, pilot frequency resources between different base stations is less repeated, and interference of the pilot frequency signals among the base stations is reduced.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a channel measurement method and device. Background technique [0002] In a Multiple-Input Multiple-Output (Multiple-Input Multiple-Output, MIMO) transmission mode, a base station may use multiple antenna ports to perform data transmission with a user equipment (User Equipment, UE). In existing communication systems, base station antennas are generally deployed in a horizontal arrangement with a relatively small number. For example, in a Long Term Evolution (LTE) system, the number of base station antenna ports is now 1, 2, 4 or 8. [0003] The base station needs to perform downlink data scheduling based on the downlink channel information fed back by the UE, so the UE needs to perform channel measurement. At present, the UE generally performs channel measurement based on a pilot signal (such as a channel state information reference symbol (CSI-RS)) transmitted by...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W24/00H04W72/08
CPCH04L5/00H04W24/00H04W72/54
Inventor 陈润华陈文洪高秋彬
Owner DATANG MOBILE COMM EQUIP CO LTD
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