Method, system and equipment for determining collaborative community and transmission point in CoMP

A collaborative cell, multi-point collaborative technology, applied in diversity/multi-antenna systems, electrical components, wireless communications, etc., can solve the problem of inability to determine CoMP collaborative cell sets and CoMP transmission points

Active Publication Date: 2011-05-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The embodiment of the present invention provides a method, system and device for determining a cooperative cell and a transmission point in coordinated multi-point transmission, which are used to solve the problem that the network side cannot determine Problems of CoMP coordinated cell set and CoMP transmission point

Method used

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  • Method, system and equipment for determining collaborative community and transmission point in CoMP
  • Method, system and equipment for determining collaborative community and transmission point in CoMP
  • Method, system and equipment for determining collaborative community and transmission point in CoMP

Examples

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Embodiment 1

[0096] like Figure 5A As shown, this embodiment is a process of determining an uplink (UL) CoMP coordinated cell set, and the details are as follows:

[0097] There are various ways to configure the uplink CoMP coordinated cell set, which may be pre-determined by network planning during network deployment, or determined through processes such as UE measurement and reporting. Through the SRS reporting method, multiple cells can learn the uplink channel quality of the UE, and send the information to the serving cell where the UE is located, as the basis for uplink frequency domain scheduling, MCS selection and resource allocation. This embodiment describes the process in which the UE determines the set of UL CoMP coordinated cells on the network side through the SRS measurement of the network from the non-CoMP (non-CoMP) state:

[0098] Step S01: through a radio resource management (RRM) measurement and reporting process, the network side (serving cell) determines a CoMP measu...

Embodiment 2

[0107] like Figure 5B As shown, this embodiment is the update process of the downlink (DL) CoMP coordinated cell set, and the details are as follows:

[0108] The configuration of the downlink CoMP cooperating cell set can be completed through the process of RRM measurement -> determining CoMP measurement set -> determining CoMP cooperating set. Through the SRS reporting method, multiple cells can learn the uplink channel quality of the UE, and send the information to the serving cell where the UE is located. The serving cell uses the TDD channel reciprocity as the basis for downlink frequency domain scheduling, MCS selection and resource allocation, etc. . This embodiment describes a process in which the UE updates the DL CoMP coordinated cell set at the network side through SRS measurement of the network in the CoMP state. Since the set of CoMP coordinated cells is transparent to the UE and is only known to the network side, after the serving cell determines the set of Co...

Embodiment 3

[0119] like Figure 5C As shown, this embodiment is a process of determining a UL CoMP transmission point, and the details are as follows:

[0120] After the uplink CoMP coordinated cell set is determined, the uplink CoMP transmission point set needs to be determined. According to the channel conditions of each cell at different times, the CoMP transmission point set can be dynamically changed. Through the SRS reporting method, multiple cells can learn the uplink channel quality of the UE, and send the information to the serving cell where the UE is located, as the basis for uplink frequency domain scheduling, MCS selection and resource allocation. This embodiment describes the process in which the UE determines the UL CoMP transmission point set and scheduling resources on the network side through the SRS measurement of the network in the CoMP mode:

[0121] Step S21: the candidate cell receives the SRS sent by the UE according to the indication of the serving cell, and fee...

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Abstract

The embodiment of the invention discloses a method for determining a collaborative community and a transmission point in Coordinated Multi-Point Transmission (CoMP). The method comprises the following steps that a CoMP measurement set is determined through a serving cell, a CoMP coordination request is sent to an alternative collaborative community in the CoMP measurement set, and the resource allocation information of a searching reference signal (SRS) sent by a terminal is carried in the CoMP coordination request; after the CoMP coordination request is received by the alternative collaborative community, the determined feedback content is sent to the serving cell as per the SRS sent by the receiving terminal of the resource allocation information of the SRS, feedback content and feedback method to the serving cell determined by the SRS and the feedback method; and after the CoMP collaborative community congregation and / or CoMP transmission point of the terminal is determined by the serving cell as per the received feedback content. The embodiment of the invention further discloses a multi-point collaborative transmission system and equipment. The purpose of determining the CoMP collaborative community congregation and / or CoMP transmission point in the Coordinated Multi-Point Transmission on a network side through the SRS is realized through the multi-point collaborative transmission system and equipment.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method, system and equipment for determining a coordinated cell and a transmission point in coordinated multi-point transmission. Background technique [0002] The International Telecommunication Union (ITU) puts forward very strict requirements on the performance of the next generation mobile communication system IMT-Advanced. For example, the maximum system transmission bandwidth reaches 100MHz, the peak rate of uplink and downlink data transmission needs to reach 1G bps and 500M bps, and puts forward very high requirements for the system average spectral efficiency, especially the edge spectral efficiency. In order to meet the requirements of the new IMT-Advanced system, the Third Generation Mobile Communications Standardization Organization (3GPP) proposed the use of Co-ordinated Multi-point Transmission (Co-ordinated Multi-PointTransmission, CoMP) technology ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/12H04W40/24H04W72/08H04B7/02
Inventor 彦楠赵毅谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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