Resource allocation method and resource allocation system for uplink demodulation reference signals (DMRSs)

A technology for demodulation reference signal and resource allocation, which is applied in the field of resource allocation of uplink demodulation reference signal, and can solve the problems of UE being unable to achieve orthogonality, scheduling limitation of DMRS multiplexing capacity, etc.

Inactive Publication Date: 2012-04-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The present invention provides a resource configuration method and system for an uplink demodulation reference signal, which solves the problems in t

Method used

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  • Resource allocation method and resource allocation system for uplink demodulation reference signals (DMRSs)
  • Resource allocation method and resource allocation system for uplink demodulation reference signals (DMRSs)
  • Resource allocation method and resource allocation system for uplink demodulation reference signals (DMRSs)

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0058] Preferred embodiment one

[0059] The base station configures N resources or parameter sets for sending uplink DMRS for the user terminal through high-level signaling.

[0060] The N resources or parameter sets used to transmit uplink DMRS include one or more of the following information: user-specific parameters used to determine the uplink DMRS sequence group number u, and used to determine the uplink DMRS sequence shift pattern f ss User-specific parameters, cyclic shift information configured by high-level signaling, and cell-specific parameters Δ used to determine the DMRS sequence shift pattern of PUSCH ss , User-specific parameters used to determine the DMRS sequence shift pattern of PUCCH, group frequency hopping enable indicator, sequence frequency hopping enable indicator, sequence group frequency hopping disabled indicator, DMRS orthogonal mask (OCC) enable It can indicate the number of DMRS spatial multiplexing layers and the sequence group number of the uplink...

Example Embodiment

[0068] Preferred embodiment two

[0069] The base station configures N resources or parameter sets for sending uplink DMRS for the user terminal through high-level signaling.

[0070] The N resources or parameter sets used to transmit uplink DMRS include one or more of the following information: user-specific parameters used to determine the uplink DMRS sequence group number u, and used to determine the uplink DMRS sequence shift pattern f ss User-specific parameters, cyclic shift information configured by high-level signaling, and cell-specific parameters Δ used to determine the DMRS sequence shift pattern of PUSCH ss , User-specific parameters used to determine the DMRS sequence shift pattern of PUCCH, group frequency hopping enable indicator, sequence frequency hopping enable indicator, sequence group frequency hopping disabled indicator, DMRS orthogonal mask (OCC) enable It can indicate the number of DMRS spatial multiplexing layers and the sequence group number of the uplink...

Example Embodiment

[0078] Preferred embodiment three

[0079] This embodiment provides a DMRS configuration method. The method includes that the base station can configure different uplink DMRS sequence group numbers for users with the same cell ID (such as CoMP scenario 4), thereby achieving the purpose of increasing uplink DMRS multiplexing capacity.

[0080] To Figure 7 The CoMP scenario 3 or Comp scenario 4 shown in the figure is taken as an example. If the cell IDs of the macro base station and the low-power nodes under the macro base station are the same, it is CoMP scenario 4, and if the cell IDs are not the same, it is CoMP scenario 3. Taking CoMP scenario 4 as an example, according to the configuration method of the 3GPP Rel-10 protocol in the related technology, the uplink DMRS sequence group numbers of users belonging to the same macro base station are the same, and they all belong to the uplink DMRS sequence group numbers of users under the low-power node Both are the same, but the numbe...

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Abstract

The invention discloses a resource allocation method and a resource allocation system for uplink demodulation reference signals (DMRSs). The method comprises the following steps: a base station allocates N resources or N parameter sets which are used for sending the uplink DMRSs for a user terminal through high-level signaling, and indicates that one of the N resources or one of the N parameter sets is used for the user terminal to send the uplink DMRSs through K bits in downlink control information; and the user terminal sends the uplink DMRSs by using a source or a parameter set indicated by the K bits, wherein both N and K are positive integers. The scheme saves the consumption of singling and dynamically allocates the resources or the parameter sets for the DMRSs for UE (User Equipment) among cells, so that the orthogonality of the DMRSs of the UE among different cells can be realized, the scheduling restrictions are overcome, the multiplexing capacity of the DMRSs is strengthened, and the problems in related technologies that the orthogonality of the DMRSs of the UE among the different cells cannot be realized, the scheduling restrictions exist, the multiplexing capacity of the DMRSs is insufficient are solved, thereby improving the transmission performance of a system.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a resource allocation method and system for an uplink demodulation reference signal (Demodulation Reference Signal, DMRS for short). Background technique [0002] The uplink physical channels of the long-term evolution system (LTE, Long Term Evolution) include a physical random access channel (PRACH, Physical Random Access Channel), a physical shared channel (PUSCH, Physical uplink shared channel), a physical uplink control channel (PUCCH, Physical Uplink Control Channel). The uplink scheduling information (Uplink Scheduling Information) for the PUSCH is sent by the base station to a target user terminal (UE, User Equipment) through a physical downlink control channel (Physical Downlink Control Channel, PDCCH for short). The uplink scheduling information includes: resource allocation related to the physical uplink shared channel, modulation and coding scheme, DMRS ...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/1278H04L5/0048H04W72/04H04L5/0037H04W72/20
Inventor 王瑜新戴博孙云锋
Owner ZTE CORP
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