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Indication method, base station and terminal of reference signal configuration information

A technology of reference signal and sounding reference signal, which is applied to base stations and terminals, and the indication field of reference signal configuration information, to achieve the effect of reducing the overhead of the physical layer

Active Publication Date: 2021-07-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a method for indicating reference signal configuration information, a base station, and a terminal, so as to at least solve the problem in the related art that notifying users of reference signal information causes additional physical layer overhead

Method used

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  • Indication method, base station and terminal of reference signal configuration information
  • Indication method, base station and terminal of reference signal configuration information
  • Indication method, base station and terminal of reference signal configuration information

Examples

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Embodiment 1

[0064] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, figure 1 It is a hardware structural block diagram of a mobile terminal according to a method for indicating reference signal information in an embodiment of the present invention. Such as figure 1 As shown, the mobile terminal 10 may include one or more (only one is shown in the figure) processor 102 (the processor 102 may include but not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA, etc.), for A memory 104 for storing data, and a communication device 106 for a communication function. Those of ordinary skill in the art can understand that, figure 1 The shown structure is only for illustration, and it does not limit the structure of the above-mentioned electronic device. For example, the mobile terminal 1...

Embodiment 1

[0106] Preferred embodiment 1: DMRS type 2

[0107] For the current design of reference signals, a DMRS pattern based on FD-OCC (Frequency domain orthogonal covering code), we call it DMRS type 2, which can effectively support a maximum of 6 ports in one DMRS symbol (such as image 3 shown), supports a maximum of 12 ports in 2 DMRS symbols (such as Figure 4 shown).

[0108] image 3 is a schematic illustration of demodulation reference signal type 2 according to preferred embodiment 1 Figure 1 ,Such as image 3 As shown, in a resource block RB (Resource block), the abscissa is the time domain, and the ordinate is the frequency domain. The 6 DMRS ports are divided into 3 CDM (code domain multiplexing) groups, and the CDM group #0 includes ports p0 and p1. In CDM group #0, ports p0 and p1 are mapped on the same time-frequency resource by means of OCC code division. For example, the OCC code used by port p0 is [1 1], and the OCC code used by port p1 is [1-1]. In one RB, s...

Embodiment 1a

[0200] Preferred Embodiment 1a: DMRS Type 1

[0201] A DMRS pattern based on IFDM (Interleaved Frequency domain multiplexing), which we call DMRS type 1, can effectively support a maximum of 4 ports in one DMRS symbol (such as Image 6 shown), supports a maximum of 8 ports in 2 DMRS symbols (such as Figure 7 shown).

[0202] Image 6 is an illustration of demodulation reference signal type 1 according to the preferred embodiment 1a Figure 1 ,Such as Image 6 As shown, the DMRS port is divided into two CDM groups, CDM group #0 includes p0, p2, and p0, p2 occupy the same time-frequency resources, and are distinguished by different codes, such as different CS (cyclic shift) sequences distinguish. CDM group #1 includes p1 and p3, and p1 and p3 occupy the same time-frequency resource and are distinguished by different codes.

[0203] Figure 7 is an illustration of demodulation reference signal type 1 according to the preferred embodiment 1a Figure II ,exist Figure 7 Amo...

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Abstract

The present invention provides a method for indicating reference signal configuration information, a base station, and a terminal, wherein the method includes: the first communication node determines joint signaling, wherein the joint signaling includes: first information and second information; wherein , the first information includes at least one of the following: configuration information of the quasi-co-site, configuration information of the transmit beam; the second information includes at least one of the following: configuration information of the phase tracking reference signal, configuration information of the demodulation reference signal ; The first communication node sends the joint signaling to the second communication node. The above technical solution solves the problem of additional physical layer overhead caused by notifying users of reference signal information in the related art. Under the condition of ensuring accurate notification of reference signal information to user terminals, the method of joint signaling reduces the physical layer overhead. overhead.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a method for indicating configuration information of reference signals, a base station and a terminal. Background technique [0002] In related technologies, at present, a phase noise tracking reference signal (phase noise tracking RS, PTRS for short) needs to be introduced to estimate phase noise at high frequencies. Generally, since one antenna panel of a TRP uses a crystal oscillator, multiple DMRS ports sent by the antenna panel can share one PTRS port, that is, the estimated result of the PTRS port can be used for multiple DMRS ports sent by one antenna panel. port. If multiple panels of a TRP share one crystal oscillator, then all DMRS ports sent by the TRP can share one PTRS port. However, how many PTRS ports are there and how to notify users of the number of PTRS ports has not yet been concluded. There is no flexibility in notifying the number of PTRS ports semi-stat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04B7/0413H04B7/06
CPCH04B7/0413H04B7/0626H04L5/0048H04L5/0023H04L5/0091H04L27/26136H04L27/2613H04W72/232H04L5/0051H04L5/0094H04B7/0456H04L5/10H04L25/0226H04W72/23
Inventor 蒋创新张楠鲁照华李儒岳高波吴昊梅猛
Owner ZTE CORP
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