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Downlink component carrier wave identification method, synchronous downlink component carrier wave reporting method and device

A component carrier and identification technology, applied in wireless communication, access restriction, service signaling, etc., can solve problems such as system resource waste

Active Publication Date: 2009-09-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause a serious waste of system resources

Method used

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  • Downlink component carrier wave identification method, synchronous downlink component carrier wave reporting method and device
  • Downlink component carrier wave identification method, synchronous downlink component carrier wave reporting method and device
  • Downlink component carrier wave identification method, synchronous downlink component carrier wave reporting method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Suppose an LTE-A system works in Frequency Division Duplex (FDD, Frequency Division Duplex) mode. There are two downlink component carriers in the system. The frequency point of downlink component carrier 1 is f1, the bandwidth is B1, and the downlink component carrier 2 is The frequency point is f2, and the bandwidth is B2; there is one uplink component carrier, and the frequency point of the uplink component carrier 1 is f3, and the bandwidth is B3. The downlink component carrier 1 and the downlink component carrier 2 correspond to the uplink component carrier 1, and the downlink component carrier 1 and the downlink component carrier 2 form a group.

[0082] The system information of downlink component carriers 1 and 2 carries the following information:

[0083] 1) Frequency point f3 and bandwidth B3 of uplink component carrier 1;

[0084] 2) Random access configuration parameters on the uplink component carrier 1;

[0085] 3) The identification number of the downli...

Embodiment 2

[0091] Suppose an LTE-A system works in FDD mode, and there are two downlink component carriers in the system, the frequency point of downlink component carrier 1 is f1, the bandwidth is B1, the frequency point of downlink component carrier 2 is f2, and the bandwidth is B2; There is one uplink component carrier, the frequency point of the uplink component carrier 1 is f3, and the bandwidth is B3. The downlink component carrier 1 and the downlink component carrier 2 correspond to the uplink component carrier 1, and the downlink component carrier 1 and the downlink component carrier 2 form a group.

[0092] The system information of downlink component carriers 1 and 2 carries the following information:

[0093] 1) Frequency point f3 and bandwidth B3 of uplink component carrier 1;

[0094] 2) Random access configuration parameters on the uplink component carrier 1;

[0095] 3) The downlink component carrier identification number 0, frequency point f1, and bandwidth B1 of the do...

Embodiment 3

[0111] Suppose an LTE-A system works in FDD mode, and there are two downlink component carriers in the system, the frequency point of downlink component carrier 1 is f1, the bandwidth is B1, the frequency point of downlink component carrier 2 is f2, and the bandwidth is B2; There is one uplink component carrier, the frequency point of the uplink component carrier 1 is f3, and the bandwidth is B3. The downlink component carrier 1 and the downlink component carrier 2 correspond to the uplink component carrier 1, and the downlink component carrier 1 and the downlink component carrier 2 form a group.

[0112] The system information of downlink component carriers 1 and 2 carries the following information:

[0113] 1) Frequency point f3 and bandwidth B3 of uplink component carrier 1;

[0114] 2) Random access configuration parameters on the uplink component carrier 1;

[0115] 3) The downlink component carrier identification number of downlink component carrier 1 is 0, frequency p...

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PUM

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Abstract

The invention discloses a downlink component carrier wave identification method, including the followings: the system information of each downlink component carrier wave in a set of downlink component carrier waves at least includes frequency point information bearing the downlink component carrier wave of random access response, or includes frequency point bearing the downlink component carrier wave of random access response and bandwidth information thereof; or at least includes identification information bearing the downlink component carrier wave of random access response, and the identification information and frequency point information of each downlink component carrier wave, or the identification information, frequency point and bandwidth information of each downlink component carrier wave. Or, the corresponding relation between each downlink component carrier wave of a set of downlink component carrier waves and random access leader sequence is set, and the system informationof each downlink component carrier wave in a set of downlink component carrier wave at least includes self-identification information and the number information of downlink component carrier wave in a set of downlink component carrier waves. Simultaneously, the invention also discloses a reporting method and a device of synchronous downlink component carrier wave. The invention is simply realizedand is practical.

Description

technical field [0001] The present invention relates to identification and reporting technologies of downlink component carriers, and in particular to a method for identifying downlink component carriers in an Advanced Long Term Evolution system (LTE-A, Long Term Evolution-Advanced) and a method and device for reporting synchronous downlink component carriers. Background technique [0002] The LTE-A system is a next-generation evolution system of the Long Term Evolution (LTE, Long Term Evolution) system. figure 1 It is a schematic diagram of the relationship between carrier aggregation and component carriers in the LTE-A system, such as figure 1 As shown, the LTE-A system adopts a carrier aggregation (Carrier Aggregation, also called carrier aggregation) technology to expand the transmission bandwidth to obtain a higher data rate. Each aggregated carrier is called a component carrier (ComponentCarrier). Component carriers can be contiguous or non-contiguous in frequency sp...

Claims

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Application Information

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IPC IPC(8): H04W4/20H04W48/08H04W74/08
Inventor 朱鹏郝鹏喻斌张戎
Owner ZTE CORP
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