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Reference signal transmitting method, reference signal receiving method, access network device and terminal device

A technology of access network equipment and terminal equipment, which is applied in the field of communication, can solve problems such as waste of resources, low precision of DMRS, and lower resource utilization, and achieve the effect of flexible sending and receiving

Active Publication Date: 2018-06-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the network device only transmits the DMRS corresponding to some antenna ports, the REs corresponding to the remaining antenna ports neither transmit data nor carry data, which causes waste of resources and reduces resource utilization. The channel estimation accuracy of DMRS transmitted in the resource allocation mode is not high

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  • Reference signal transmitting method, reference signal receiving method, access network device and terminal device
  • Reference signal transmitting method, reference signal receiving method, access network device and terminal device
  • Reference signal transmitting method, reference signal receiving method, access network device and terminal device

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Embodiment Construction

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0047] It should be understood that the method for sending and receiving the reference signal in the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) ) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Universal Mobile Telecommunications System , UMTS) and other current communication systems, especially can be applied to the future fifth generation mobile communication technology (5G) system.

[0048] In particular, the technical solutions of the embodiments of the present application can b...

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Abstract

The embodiment of the invention provides a reference signal transmitting method, a reference signal receiving method, an access network device and a terminal device. The reference signal transmittingmethod comprises the following steps: the access network device determines a de-modulation reference signal DMRS pattern corresponding to an antenna port; the access network device transmits first indication information to the terminal device, wherein the first indication information is used for indicating the DMRS pattern corresponding to the antenna port; and the access network device transmitsthe DMRS to the terminal device through the antenna port and the DMRS pattern. In the embodiment of the invention, the DMRS resource corresponding to a transmission antenna port can be indicated flexibly through the DMRS pattern.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a method for sending and receiving a reference signal, an access network device and a terminal device. Background technique [0002] In a wireless communication system, in order to make full use of space resources, network devices can be equipped with multiple antennas to transmit data using Multiple-Input Multiple-Output (MIMO) technology, that is, network devices can use the same time-frequency resources transmit multiple data streams. Wherein, each data stream is transmitted on an independent space layer, and the data transmitted on each space layer will be mapped to different antenna ports for transmission. Since the channel coefficients from different antenna ports to terminals are different, it is necessary to estimate the channel coefficients between each antenna port and the terminal device when performing channel estimation. Therefore, the network device wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W88/02H04W88/08
CPCH04L5/0051H04L5/0057H04W24/10H04L5/0048H04W72/046H04W88/00H04W88/02H04W88/08
Inventor 谢信乾郭志恒孙伟程型清
Owner HUAWEI TECH CO LTD
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