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Reference signal sending method and device and reference signal configuration method and device

A technology of reference signal and sending method, which is applied in the field of communication, can solve problems such as inflexible conflict resolution, and achieve the effect of increasing flexibility, accuracy, and diversifying processing methods

Active Publication Date: 2018-06-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present disclosure provide a method for sending a reference signal, a method for configuring a reference signal, and a device, so as to at least solve the problem of inability to flexibly resolve conflicts in related technologies

Method used

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  • Reference signal sending method and device and reference signal configuration method and device
  • Reference signal sending method and device and reference signal configuration method and device
  • Reference signal sending method and device and reference signal configuration method and device

Examples

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Embodiment 1

[0026] 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 block diagram of a hardware structure of a mobile terminal according to a method for sending a reference signal according to an embodiment of the present disclosure. Such as figure 1 As shown, the mobile terminal 10 may include one or more ( figure 1 Only one is shown in the figure) processor 102 (processor 102 may include but not limited to processing devices such as microprocessor MCU or programmable logic device FPGA), memory 104 for storing data, and transmission device for communication function 106. 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 10 may also in...

specific Embodiment 1

[0051] There are many kinds of reference signals in 5G NR, which can also be called pilots in general, and these pilots have their own functions. The main pilot types include:

[0052] Downlink pilot: including downlink demodulation reference signal (Demodulation Reference Signal, referred to as DLDMRS), channel state information reference symbol CSI-RS, DL PTRS, TRS; the main function of DL DMRS is to demodulate downlink data, DL PTRS mainly It is used for downlink estimation of phase noise to improve performance. There are several types of CSI-RS: CSI-RS used for beam management; CSI-RS used for CSI measurement of downlink channels. TRS is mainly used for time-frequency offset tracking.

[0053] Uplink pilot: including uplink demodulation reference signal UL DMRS, channel sounding reference signal (Sounding Reference Signal, referred to as SRS), UL PTRS; the main function of UL DMRS is to demodulate downlink data. The role of the SRS is for uplink CSI measurement. UL PTR...

specific Embodiment 2

[0079]For the first type of reference signal and the second type of reference signal, collisions may occur on some time slots, but not on some time slots. For the case where the first type of reference signal is configured by high layer signaling and the second type of reference signal is configured by physical layer signaling. High-level signaling generally takes a long time to update configurations, while physical layer signaling can dynamically select configuration parameters for each time slot, such as Figure 7 shown.

[0080] In a time slot without conflict, the configuration of the second type of reference signal can be selected from the set X, and in a time slot with conflict, the configuration of the second type of reference signal can be selected from Y, and Y is a subset of X. In fact, this is a configuration restriction on the second type of reference signal.

[0081] The following downlink pilot is taken as an example for illustration:

[0082] Conflict between...

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Abstract

The invention provides a reference signal sending method and device and a reference signal configuration method and device. The reference signal sending method comprises the steps of determining thata conflict occurs between at least two reference signals and selecting a processing mode for solving the conflict between the at least two reference signals from a plurality of conflict processing modes; and sending at least one reference signal in the at least two reference signals to a terminal according to the selected processing mode, thereby indicating the terminal to measure the at least onereference signal. The problem that in related technologies, the conflict cannot be flexibly solved is solved, the conflict processing modes are diversified, and the selection flexibility and accuracyare improved.

Description

technical field [0001] The present disclosure relates to the field of communication, and in particular, to a method for sending a reference signal, a method and a device for configuring a reference signal. Background technique [0002] There are a variety of reference signals in the 5G new air interface NR, which can also be called pilots, and these pilots have their own functions. It mainly includes uplink pilot and downlink pilot. [0003] There may be multiple configurations of uplink pilots and downlink pilots, and the configuration of these reference signals has high flexibility requirements, and resources cannot be limited in advance so that they are orthogonal to transmission resources, so there will be reference signals. The conflict between signals, and the method for solving the conflict in the prior art is relatively simple, which cannot solve the conflict problem flexibly, so that the terminal cannot correctly determine how the base station sends the pilot. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W28/04
CPCH04L5/0048H04W28/04H04L5/0058H04L5/0094H04L5/0007H04L5/0023H04W72/23
Inventor 陈艺戬鲁照华李儒岳吴昊张楠
Owner ZTE CORP
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