Method, system and device for allocating uplink reference signals

A reference signal and configuration method technology, applied in the field of communication, can solve problems such as the inability to guarantee the orthogonality of uplink reference signals of different UEs

Active Publication Date: 2010-07-07
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially solve

Method used

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  • Method, system and device for allocating uplink reference signals
  • Method, system and device for allocating uplink reference signals

Examples

Experimental program
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Embodiment 1

[0058] Such as image 3 As shown, it is a flowchart of the configuration method of the uplink reference signal in Embodiment 1 of the present invention. In this embodiment, the signaling sent by the base station to all asymmetric UEs on the same uplink component carrier is the same, that is, unified signaling. The length of the signaling may refer to the length of the current Cell ID, preferably 9 bits. Specifically include the following steps:

[0059] In step S301, the base station judges whether there is an asymmetric UE in the uplink component carrier of the multi-carrier aggregation system, where the asymmetric UE refers to a UE that occupies the same uplink component carrier and different downlink component carriers.

[0060] Step S302, if it is judged that there is an asymmetric UE in the uplink component carrier, the base station sends a unified signaling Indicates the sequence number of the root sequence of the uplink parameter signal to the asymmetric UE. The uni...

Embodiment 2

[0070] Such as Figure 4 As shown, it is a flow chart of the configuration method of the uplink reference signal in Embodiment 2 of the present invention. In this embodiment, the base station sends signaling to asymmetric UEs on the same uplink component carrier respectively. The signaling It is related to the cell ID corresponding to the asymmetric UE, and the signaling corresponding to each asymmetric UE and the sum of the cell ID are equal, so as to ensure that the UE can use the uplink reference signal root sequence in the same group. The length of the signaling is preferably 5 bits. Specifically include the following steps:

[0071] Step S401, the base station judges whether there is an asymmetric UE in the uplink component carrier of the multi-carrier aggregation system, where the asymmetric UE refers to the UE that occupies the same uplink component carrier and different downlink component carriers.

[0072] Step S402, if it is judged that there is an asymmetric...

Embodiment 3

[0081] If the Cell IDs of all downlink component carriers are broadcast in the broadcast information, the base station can directly select one of the Cell IDs as the Cell ID used by the asymmetric UE when determining the uplink reference signal sequence, and send the selected Cell ID to The UE is notified that this embodiment can also ensure the orthogonality between the uplink reference signal sequences.

[0082] Such as Figure 5 As shown, it is a structural diagram of an uplink reference signal configuration system according to an embodiment of the present invention, including a base station 100 and at least one UE 200 served by the base station 100 . The base station 100 is used to judge whether there is an asymmetric UE in the uplink component carrier of the multi-carrier aggregation system. The asymmetric UE is a UE that occupies the same uplink component carrier and occupies a different downlink component carrier. When it is judged that there is an asymmetric UE, by Th...

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Abstract

The invention discloses a method for allocating uplink reference signals, which comprises the following steps that: a base station judges whether asymmetric user equipment (UE) exists in an uplink member carrier of a multi-carrier polymerization system, wherein the asymmetric user equipment (UE) refers to the user equipments (UE) which use the same uplink member carrier and different downlink member carrier; if the base station judges that the asymmetric user equipment (UE) exists in the uplink member carrier, the base station indicates the serial number of the uplink reference signal root sequence to the asymmetric user equipment (UE) according to a signaling, and the asymmetric user equipment (UE) allocates an uplink reference signal according to the signaling. The method definitely indicates the reference signal sequence in the uplink member carrier by the signaling, can avoid the interference between the UE because the downlink member carrier uses different Cell ID, and can ensure the orthogonality of the uplink reference signal sequences.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and device for configuring an uplink reference signal of a long term evolution multi-carrier aggregation system. Background technique [0002] In the long-term evolution broadband mobile communication system, such as LTE-Advanced or IMT-Advanced system, it is necessary to provide a higher peak rate through a larger transmission bandwidth to meet the needs of users, but the expansion of the transmission bandwidth is limited by the operator's own frequency resources. Since the frequency resources owned by operators are limited, in order to meet the bandwidth requirements of the LTE-A system, it is necessary to aggregate multiple continuous or discontinuous LTE frequency bands. In addition, since the LTE-A system also needs to maintain good backward compatibility with the existing LTE (Long Term Evolution, Long Term Evolution) system to ensure smooth...

Claims

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Application Information

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IPC IPC(8): H04W88/08H04B7/26
Inventor 杨鼎成潘学明王立波肖国军索士强
Owner DATANG MOBILE COMM EQUIP CO LTD
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