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Processing method for uplink reference signal, and base station and terminal

A processing method and reference signal technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as SRS resource limitation and system performance degradation, and achieve the effect of improving system performance and solving SRS resource limitation

Active Publication Date: 2014-07-02
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that SRS plays an important role in both FDD and TDD systems. However, due to the limitation of SRS transmission, in some cases, there may be a problem that the base station needs to perform the Sounding function, but no SRS is available, that is, SRS resources Restricted issues, resulting in system performance degradation
For this problem, there is no effective solution in the prior art

Method used

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  • Processing method for uplink reference signal, and base station and terminal
  • Processing method for uplink reference signal, and base station and terminal
  • Processing method for uplink reference signal, and base station and terminal

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Embodiment Construction

[0021] In view of the problems in the prior art, the present invention proposes a new uplink reference signal processing scheme, that is, the base station receives the DMRS from the terminal and uses the DMRS instead of the SRS to perform the sounding function, thereby solving the limitation of SRS resources to a certain extent. The problem has improved system performance.

[0022] However, there is also a problem with this processing: according to the previous introduction, the terminal will only send DMRS to the base station when the terminal has uplink data or uplink control signaling to be sent, otherwise, it will not send DMRS. When the terminal does not have uplink data or uplink control signaling needs to be sent, if the base station needs to perform the sounding function, there will also be a problem of resource limitation.

[0023] To solve this problem, the following solutions are proposed in the scheme of the present invention:

[0024] In the prior art, when the terminal...

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Abstract

The invention provides a processing method for an uplink reference signal. The method comprises the following steps that: a base station receives a demodulation reference signal (DMRS) from a terminal; and the DMRS is utilized to replace a sounding reference signal (SRS) to perform a sounding function. In addition, the invention also discloses a base station and a terminal. According to a scheme provided in the invention, a problem on SRS resource constraints can be solved, thereby improving system performances.

Description

Technical field [0001] The present invention relates to mobile communication technology, in particular to an uplink reference signal processing method, base station and terminal. Background technique [0002] In the prior art, an uplink subframe (Subframe) has a length of 1 ms and contains 14 or 12 symbols. When there is a physical uplink shared channel (PUSCH, Physical uplink shared channel) or a physical uplink control channel (PUCCH, Physical uplink control channel) ) During transmission, two of the symbols, such as the 4th and 11th symbols, are used to send demodulation reference signals (DMRS, Demodulation Reference Signal), and the remaining symbols are used to send the data part of PUSCH or PUCCH, such as uplink data or Uplink control signaling, DMRS can be used to demodulate uplink data or uplink control signaling. If there is no uplink data or uplink control signaling to be sent, DMRS will not be sent. [0003] In addition to the DMRS, in practical applications, there is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
Inventor 姜大洁刘光毅高有军张勇
Owner CHINA MOBILE COMM GRP CO LTD