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Sending method and system for measuring reference signals

A technology for measuring reference signals and sending methods, which is applied in the field of communication, can solve problems such as the decline in the number of users, and achieve the effect of increasing the number of users, increasing the number, and solving the decline in the number of users

Inactive Publication Date: 2010-08-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] And because it is proposed in the requirements of LTE-A that the number of users that the LTE-A system can accommodate should not be less than that of the LTE system, this requirement conflicts with the fact that the number of users decreases when multiple antennas transmit SRS.

Method used

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  • Sending method and system for measuring reference signals
  • Sending method and system for measuring reference signals
  • Sending method and system for measuring reference signals

Examples

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example 1

[0066] The base station sends control information to the UE, which is used to instruct the UE to send the SRS. Wherein, the control information may be downlink control information and / or high-level signaling, including: time-domain location indication information for sending SRS, sending bandwidth, cyclic shift index value, RPF value, and frequency comb location used by UE.

[0067] Wherein, the time domain position indication information for sending SRS can be 1 bit, 2 bits or 3 bits, which is used to indicate the time domain position where UE sends SRS, and the time domain position is the time domain position where two uplink DMRS symbols are located; cyclic shift The bit index value is 3 bits or 4 bits, which is used to indicate the cyclic shift used by the UE when sending SRS, and the value can be 8, 12 or 16; the value of RPF is 1 bit or 2 bits, and the value can be 2 or 3 or 4; the frequency comb position used by the UE adopts 1 bit or 2 bits, and the corresponding value...

example 2

[0070] The base station sends control information to the UE to instruct the UE to send the SRS, where the control information can be downlink control information and or high-level signaling, including: time domain position indication information for sending the SRS, sending bandwidth, cyclic shift index value, RPF value, frequency comb position used by UE.

[0071] Wherein, the time domain position indication information for sending SRS can be 1 bit, 2 bits or 3 bits, which is used to indicate the time domain position where UE sends SRS, and the time domain position is the time domain position where two uplink DMRS symbols are located and the last The time domain position where the data symbol is located; the cyclic shift index value is 3 bits or 4 bits, which is used to indicate the cyclic shift used by the UE when sending SRS, and the value can be 8, 12 or 16; the value of RPF is 1 bit or 2 bits, and the value can be 2, 3, or 4; the frequency comb position used by the UE ado...

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Abstract

The invention discloses sending method and system for measuring reference signals. In sending method, a terminal receives indication information sent by a base station; and the terminal respectively and simultaneously sends a first measurement reference signal and a second measurement reference signal on an orthogonal frequency division multiplexing (OFDM) symbol in a subframe indicated by the indication information. The invention improves the containable user number in a LTE (long term evolution)-A system.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and system for sending a measurement reference signal (Sounding Reference Signal, SRS for short). Background technique [0002] The uplink physical channels of the Long Term Evolution (abbreviated as LTE) system include a physical random access channel (Physical Random Access Channel, abbreviated as PRACH), a physical uplink shared channel (Physical uplink shared channel, abbreviated as PUSCH), a physical uplink Control channel (Physical uplink control channel, PUCCH for short). Among them, PUSCH has two different cyclic prefix (Cyclic Prefix, CP for short) lengths, which are Normal Cyclic Prefix (Normal Cyclic Prefix, Normal CP for short) and Extended Cyclic Prefix (Extended Cyclic Prefix, Extended CP for short). Each transmission subframe (Subframe) of PUSCH is composed of two slots (Slot). For different cyclic prefix lengths, the position of the demodulation referen...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04L27/26
CPCH04L5/0094H04L5/0048
Inventor 王瑜新戴博郝鹏梁春丽喻斌朱鹏张禹强
Owner ZTE CORP
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