DMRS processing method and device

A processing method and high-level configuration technology, applied in the field of communication, can solve problems such as the absence of technical support

Inactive Publication Date: 2014-02-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that supporting dynamic DMRS sequence changes is conducive to dynamic space resource multiplexing and interference randomization, and is conducive to further improvement of system capacity, but there is no specific technical support yet

Method used

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Experimental program
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Effect test

Embodiment 1

[0158] Assuming that the version of UE1 is R11 or higher, the base station configures UE1 with two sequence identifiers (X0, X1) through UE-Specific (UE-specific) high-level signaling. When the base station uses DMRS-related transmission modes in the PDSCH area When data is sent to the terminal side in the CRS subframe and format 1A is used for DCI configuration, the centralized / distributed VRB mapping in DCI Format 1A assigns a 1-bit identifier to indicate the two high-level configurations used by the DMRS sequence sent by the base station side. A sequence ID and / or a specific sequence ID and / or bandwidth information in the two bandwidth information. For example, when the value of the 1 bit is 0, it indicates that the DMRS sequence is generated by X0; when the value of the 1 bit is 1, it indicates that the DMRS sequence is generated by X1.

[0159] UE1 obtains the two sequence identifiers and / or the two bandwidth information of the high-level configuration adopted by the DMRS...

Embodiment 2

[0161] Assuming that the version of UE1 is R11 or higher, the base station configures two bandwidth information (S0, S1) for UE1 through UE-Specific (UE-specific) high-level signaling. When the base station uses DMRS-related transmission modes in the PDSCH area When data is sent to the terminal side in the CRS subframe and format 1A is used for DCI configuration, the centralized / distributed VRB mapping in DCI Format 1A assigns a 1-bit identifier to indicate the high-level configuration used by the base station side to send the DMRS sequence. Specific bandwidth information in each bandwidth information. For example, when the value of the 1 bit is 0, it indicates that the DMRS sequence is generated by using S0; when the value of the 1 bit is 1, it indicates that the DMRS sequence is generated by using S1.

[0162] UE1 obtains the specific bandwidth information among the two bandwidth information configured by the high layer used by the base station to send the DMRS sequence by b...

Embodiment 3

[0164] Assuming that the version of UE1 is R11 or higher, the base station configures UE1 with two bandwidth information (S0, S1) and two sequence identifiers (X0, X1) through UE-Specific (UE-specific) high-layer signaling. When the base station uses When the DMRS-related transmission mode sends data to the terminal side in a subframe in which there is no CRS in the PDSCH region and uses format 1A for DCI configuration, the centralized / distributed VRB mapping in DCI Format 1A assigns a 1-bit identifier to indicate the base station side The specific sequence identifier and bandwidth information in the two bandwidth information and the two sequence identifiers configured by the high layer used to send the DMRS sequence. For example, when the value of the 1 bit is 0, it indicates that the DMRS sequence is generated by using S0 and X0; when the value of the 1 bit is 1, it indicates that the DMRS sequence is generated by using S1 and X1.

[0165] UE1 obtains the two bandwidth infor...

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Abstract

Disclosed are a DMRS processing method and device. A base station side pre-allocates one or more sequence identifiers and/or bandwidth information for a terminal side via a UE dedicated high layer signaling, the sequence identifier and/or bandwidth information being required for generating a DMRS sequence; and then the base station side utilizes at least one of the following indication methods to indicate the terminal side specific sequence identifier and/or bandwidth information employed to transmit the DMRS sequence: 1. using a bit in a downlink control indication signaling for the indication; 2. using the position of scheduled time domain and/or frequency domain resources for the indication.

Description

technical field [0001] The present invention relates to the communication field, in particular to a DMRS (Demodulation Reference Signal, demodulation reference signal) processing method and device. Background technique [0002] After the Long Term Evolution (LTE) system has gone through several versions of R8 / 9 / 10, R11 technology has been studied successively. At present, some R8 products are gradually commercialized, and R9 and R10 are subject to further product planning. [0003] After going through the stages of R8 and R9, R10 added many new features on the basis of the first two, such as DMRS, CSI-RS (Channel State Information Reference Signal, channel state information reference signal, etc. pilot features, 8 antennas Supports other transmission and feedback characteristics, etc. In particular, the eICIC (ehanced Inter-Cell Interference Cancellin, enhanced Inter-Cell Interference Cancellation) technology further considers the inter-cell interference avoidance technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L5/00H04W72/04
CPCH04W72/042H04L1/02H04L5/0051H04L27/2613H04W4/06H04W72/23H04L5/0048H04L12/189
Inventor 郭森宝孙云锋张文峰
Owner ZTE CORP
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