Data synchronous processing method and data synchronous processing device

A technology of data synchronization and processing method, applied in the field of communication, can solve problems such as data synchronization, and achieve the effect of controlling data synchronization overhead and implementation complexity

Inactive Publication Date: 2016-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a data synchronization processing method and device, which are used to solve the problem of data synchronization between TPs in the process of cell virtualization

Method used

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  • Data synchronous processing method and data synchronous processing device
  • Data synchronous processing method and data synchronous processing device
  • Data synchronous processing method and data synchronous processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0137] The following example illustrates how the transmission point in the virtual cell obtains the data packet from the gateway (or gateway):

[0138] Figure 8 is a schematic diagram of a transmission point obtaining virtual cell data through a wired backhaul according to an embodiment of the present invention, as shown in Figure 8 As shown, transmission point TP0 / TP1 / TP2 (such as Figure 8 -(A), Figure 8 - (B) shown) or transmission point TP0 / TP1 / TP2 / TP3 / TP4 (such as Figure 8 -(C), Figure 8 - (shown in D)) form the virtual cell of the terminal, and obtain data from the gateway (GW, Gateway) through wiredbackhaul, where TP0 is masterTP, and the data can already be obtained through the gateway.

[0139] for Figure 8 - (A) ring network structure, the data packets from the gateway are on the "ring" formed by each TP. TP0 transmits the reception information of the data packet from the gateway to TP1 / TP2 through the interface between TPs, so that TP1 / TP2 can identify a...

Embodiment 2

[0150] Figure 10 It is a schematic diagram of a transmission point obtaining virtual cell data through PDCP layer packet forwarding to realize data synchronization according to an embodiment of the present invention, as shown in Figure 10 As shown, the transmission point TP0 / TP1 / TP2 (such as Figure 10 ) constitute the virtual cell of the terminal. T0 is the masterTP, which obtains data from the gateway (GW, Gateway) through wiredbackhaul (TP1 / TP2 can be connected to the gateway through wiredbackhaul, or not connected to the gateway). TP0 encapsulates the data from the gateway at the PDCP layer to form a PDCP layer PDU. TP0 uses wireless backhaul to send PDCP layer PDUs to TP1 / TP2 to realize data synchronization between TP0 / TP1 / TP2.

[0151] TP0 can forward data packets in broadcast mode, or send data packets to TP1 / TP2 in unicast mode.

[0152] Such as Figure 10- As shown in (A), the terminal moves toward TP1 from a position closer to TP0. TP0 / TP1 / TP2 achieves data s...

Embodiment 3

[0155] Figure 11 It is a schematic diagram of a transmission point obtaining data of a virtual cell through a wired backhaul according to an embodiment of the present invention, and using PDCP / RLC / MAC synchronization information to realize data synchronization, as shown in Figure 11 As shown, the transmission point TP0 / TP1 / TP2 forms the virtual cell of the terminal, and obtains data from the gateway (GW, Gateway) through wired backhaul (taking the ring network structure as an example, other network structures and methods for obtaining gateway data are as in Embodiment 1 ), where TP0 is masterTP.

[0156] The following introduces two methods to realize PDCP / RLC / MAC data synchronization

[0157] Method 1: Each TP implements PDCP / RLC / MAC layer synchronization at the same time, such as Figure 11 -As shown in (A)

[0158] TP0 sends the data synchronization information of the PDCP / RLC / MAC layer together to TP1 and TP2 in the virtual cell (by broadcasting or to TP1 / TP2 respecti...

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Abstract

The present invention discloses a data synchronous processing method and a data synchronous processing device. The data synchronous processing method comprises: sending signaling and/or a forwarding packet to (M+N) subordinate TPs (Transmission Point); performing downstream data synchronism with the subordinate TP according to the sent signaling and/or the forwarding packet, wherein M subordinate TPs and M principal TPs are subjected to data synchronism at a PDCP (Packet Data Convergence Protocol) layer, N subordinate TPs and N principal TPs are subjected to data synchronism at the PDCP/RLC (Radio Link Control)/MAC (Medium Access Control) layer, M>=0, N>=0, and M+N>=1. According to the invention, the problem is solved how to control the overhead of data synchronism based on the guarantee of virtualization effect of a cell, so that the number of layers of data synchronism may be flexibly regulated and controlled according to the requirements of cell virtualization; and moreover, the overhead of data synchronism may be controlled based on the guarantee of virtualization effect of the cell.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a data synchronization processing method and device. Background technique [0002] The development history of mobile communication shows that cell splitting, larger bandwidth, and higher spectrum efficiency are the three pillars for system capacity improvement. Therefore, "cell splitting" will be the key to achieve the goal of 5G system capacity growth. [0003] The 4G system obtains cell split gain through a heterogeneous network (Heterogeneous Network, HetNet for short). In the HetNet network, the low-power transmission point (TransmissionPoint, referred to as TP) is flexibly and sparsely deployed within the coverage area of ​​the macro cell base station (MacroCelleNodeB or eNB), forming a macro cell and a small cell (SmallCell). Multilayer network. HetNet can not only improve the flexibility of cell splitting and system capacity while ensuring coverage, share the service ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/08
CPCH04W92/045H04W92/20H04W56/0015H04W84/045H04W36/0069H04L5/0035H04W88/16H04L65/40H04L2212/00H04W16/32H04W92/16
Inventor 郝鹏郁光辉谢峰孙云锋
Owner ZTE CORP
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