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Multi-carrier selection preprocessing method based on multi-carrier system

A multi-carrier system and carrier selection technology, applied in the field of communication, can solve problems such as multi-carrier access load imbalance, and achieve the effect of avoiding multi-carrier access imbalance and optimizing resource allocation

Inactive Publication Date: 2015-06-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In a multi-carrier system, during the initial network access process, the MS first tries to access the network using the frequency point reserved last time. If it fails, it will scan each carrier with a certain step size according to the preset order, and select Therefore, a large number of MSs may access the network on the same carrier, resulting in the problem of unbalanced multi-carrier access load at the BS

Method used

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  • Multi-carrier selection preprocessing method based on multi-carrier system
  • Multi-carrier selection preprocessing method based on multi-carrier system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0040] In an implementation manner of the above access carrier selection preprocessing method, the carrier access information is preferably a load indication. Preferably, the load indication can be but not limited to one of the following: load status information, access permission flag, congestion indication flag, where the load status information can be load ratio or load weight sign (also called load weight status indicator) ), the load status indicated by the load indication may be the average of the load status of the corresponding fully configured carrier within a certain period of time, or the load status at the current moment;

[0041] Preferably, a load weight flag can be used to indicate the weight of the corresponding fully configured carrier load, for example, "1" indicates light load, and "0" indicates heavy load. Preferably, an access permission flag can be used to indicate whether the corresponding fully configured carrier is allowed to be accessed, for example, ...

example 1

[0044] In this example, for the BS, the superframe header or the broadcast message sent on each fully configured carrier respectively carries the load status information of some or all fully configured carriers supported by the BS.

[0045] For example, the following Table 1-1 provides an example of a message structure. In Table 1-1, the load indication is load status information, specifically, it may be a load ratio or a load weight status indication. In addition to the load indication, the message structure in this embodiment preferably also carries the number of carriers authorized to be configured, the sequence numbers of fully configured carriers, and the like. Similarly, in Table 1-2 and Table 1-3, the message structures in which the load status information is an access permission flag and a congestion indication flag are given respectively.

[0046] Table 1-1

[0047] grammar

size

note

message format {

The number of fully configur...

example 2

[0057] In this example, for the BS, the superframe header or broadcast message sent on a certain fully configured carrier (which may be a randomly selected fully configured carrier) carries part or all of the fully configured carriers supported by the BS The load indication of the fully configured carrier, and carry the identification information of the selected fully configured carrier in the superframe header or broadcast message sent on other fully configured carriers except the above selected fully configured carrier to inform the mobile station That fully configured carrier carries a load indication.

[0058] For the message structure of the selected fully-configured carrier in this example, refer to Table 1-1 to Table 1-3 above, and for the message structure of other fully-configured carriers, refer to the following Table 2.

[0059] Table 2

[0060] grammar

Size (bits)

note

message format {

Fully configured carrier identification ...

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Abstract

The invention discloses a multi-carrier selection preprocessing method based on a multi-carrier system. The method comprises the step of sending carrier access information of a full-configuration carrier to an MS (Memory System) after downlink synchronization is established by a BS (Base Station) and the MS, therefore, the MS can determine the accessed carrier according to the carrier access information. The invention can avoid the condition that the MS scans each carrier one by one to select the accessed carrier, thereby reducing and even avoiding the probability of imbalance problem of multi-carrier access at the BS to further, and achieveing the effect of optimum distribution of resources.

Description

technical field [0001] The present invention relates to the communication field, in particular to a multi-carrier selection preprocessing method based on a multi-carrier system. Background technique [0002] In order to improve the data transmission rate of the wireless communication system, a multi-carrier technology is proposed. Under the protocol architecture of the multi-carrier wireless communication system, a unified media access control entity (Media Access Control, referred to as MAC) controls the physical layer (physical layer) including multiple channels (channel 1, channel 2, ..., channel N). , referred to as PHY). Wherein, each channel may have a different bandwidth, and the bandwidth here may be a continuous or discontinuous frequency band. [0003] In a multi-carrier wireless communication system, for a base station, carriers can be divided into fully configured carriers and partially configured carriers. Among them, a fully configured carrier refers to a ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W48/06H04W72/02
Inventor 陈玉芹李楠曲红云
Owner ZTE CORP
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