CN100401795C - A method for handling wireless links - Google Patents

Abstract

The invention discloses a method for processing wireless links, which includes: a serving wireless network controller instructs a drifting wireless network system to combine the wireless links according to the current service type and the interface resource status between the wireless network controllers. By defining the value of the diversity control field, or adding the non-real-time service field of the required cells, the DRNS can merge the wireless links according to the service type and IUR status, thereby eliminating the need for devices from different manufacturers to be used as DRNC to inter-IUR interfaces Uncertainty about whether links are merged or not, and at the same time, link gain is maximized, and resource and delay requirements are taken into account, which can effectively guarantee the subjective experience of user communication.

Description

A method for handling wireless links

technical field

The invention relates to a network communication technology, in particular to a method for processing wireless links.

Background technique

Soft handover is one of the important technologies of WCDMA (Wideband Code Division Multiple Access), which is of great significance for maintaining the stability of communication and the seamlessness of mobility. Its core content is that multiple links from different cells can exist simultaneously for the same connection. Since there are multiple links in the same connection, it will consume a lot of IUR (interface between RNC (radio network base station controller)) resources (if there are links of other RNCs) and IUB (interface between NodeB (base station) and RNC) interface) resources. In addition, if the NodeB does not merge the link sets, or there are links of different NodeBs, the RNC (Radio Network Controller) will optimize the received signals of multiple links to improve the communication quality. Therefore, in order This preferential combining requires a predetermined delay to ensure that sufficient link signals are received. Therefore, multiple links need to be combined according to different situations.

In the prior art, the serving radio network controller uses the Diversity Control Field (DiversityControl Field) information element to indicate whether the DRNS (drift radio network system) will create a new link (excluding the first link), or increase Links are merged onto existing links (or sets of links). The DRNS includes DRNC (Drift Radio Network Controller) and NodeB. The method of its combination is briefly described below.

On the NodeB side, link merging is performed on the link set on the same NodeB. Specifically, according to the value of the diversity control domain cell value "MAY", "MUST", or "MSUT NOT", the NodeB The received link signals can be processed in three ways: "decide whether to combine", "must combine", or "do not combine".

For the scenario where there are multiple links across the IUR interface, in the prior art, the SRNC (Serving Radio Network Controller) uses the diversity control field information element in the link establishment (increase) request sent to the DRNS to instruct the DRNC or NodeB Whether to create a new link (excluding the first link), or to merge the added link into the existing link (or link set). There are two cases of merging here: one case is that the NodeB decides whether to merge the new link into the existing link (or link set) according to the value of the diversity control field information element; the other case is that the DRNC According to the value of the information element in the diversity control field, it is decided whether to adopt the preferred method to combine the links and send them to the SRNC.

Since the aforementioned prior art does not stipulate under what circumstances wireless links are to be combined or not to be combined, different manufacturers have different processing behaviors for wireless links. When communication devices from different manufacturers are connected, there will be Affects the resource allocation and operational efficiency associated with the radio link, thereby affecting the efficiency of the overall system. In addition, during the merging process, when the diversity control field information element in the cross-IUR link establishment (increase) request is set to "MAY", it means that the DRNS decides whether to merge the link by itself; because the DRNS cannot obtain the information of the current service Type, such as real-time service or non-real-time service, therefore, it is impossible to decide whether to combine links at the DRNC side according to the service type, so that in some cases, not only the waste of network resources is caused, but also the quality of service of the network is reduced.

Contents of the invention

In view of the above-mentioned defects in the prior art, the object of the present invention is to provide a method for processing wireless links, which improves the utilization rate of network resources and improves the service quality of the network.

The present invention is achieved through the following technical solutions. The present invention provides a method for processing a wireless link, the method comprising: the serving radio network controller according to the service type carried by the current wireless link, the wireless link corresponding The resource status of the interface between the radio network controllers indicates how the drift radio network system merges the radio links.

The current service type includes: real-time service and non-real-time service.

When the current service type is a real-time service, the serving radio network controller instructs the drift radio network system to perform:

Diversity combining of wireless links with the same base station;

Diversity combining is not performed on radio links from different base stations.

When the current service type is a non-real-time service, and the interface resource between the radio network controllers corresponding to the current radio link is above a predetermined threshold, the serving radio network controller instructs the drifting radio network system to perform:

Diversity combining of wireless links with the same base station;

Diversity combining is not performed on radio links from different base stations.

When the current service type is a non-real-time service, and the interface resource between the radio network controllers corresponding to the current radio link is below a specific threshold, the serving radio network controller instructs the drift radio network system to perform:

Diversity combining of wireless links with the same base station;

Diversity combining of radio links from different base stations.

The serving radio network controller instructs the drift radio network system to perform radio link combining by setting the value of the diversity control field information element in the radio link establishment message or the radio link addition message.

The serving radio network controller instructs the drifting radio network system to perform radio link combination by adding a non-real-time service field of a mandatory cell.

By defining the value of the diversity control field, or adding the non-real-time service field of the required cells, the DRNS can merge the wireless links according to the service type and IUR status, thereby eliminating the need for devices from different manufacturers to be used as DRNC to inter-IUR interfaces Uncertainty about whether links are merged or not, and at the same time, link gain is maximized, and resource and delay requirements are taken into account, which can effectively guarantee user subjective experience.

Description of drawings

FIG. 1 shows a flow chart of the invention for processing wireless links.

Detailed ways

In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

The basic idea of the present invention is: SRNC instructs DRNS to merge wireless links according to the business type carried by the wireless links and the resource status of the IUR interface. The service types include real-time services and non-real-time services, and the idle resource status of the IUR interface is classified as being above a predetermined threshold or below a predetermined threshold. The threshold can be determined according to the number of UEs allowed by the RNC to switch between IURs. If the number of UEs allowed by the RNC to switch between IURs is large, the threshold of the IUR interface should be set to be higher, so that the link is more likely to occur. Merged to save resources and support more cross-IUR switching; otherwise, vice versa. The wireless link processing method of the present invention will be described in detail below.

1. If the services carried by the wireless link currently include real-time services, the SRNC instructs the DRNS to perform:

1) NodeB performs diversity combining on the wireless links of the same base station;

2) DRNC does not perform diversity combining on wireless links from different base stations.

2. If the services currently carried by the wireless link only include non-real-time services:

a, and the idle value of the current IUR interface bandwidth resource is above the predetermined threshold, the SRNC instructs the DRNS to execute by setting the radio link establishment message and the radio link increase message:

1) NodeB performs diversity combination on the wireless links of the same base station

2) DRNC does not perform diversity combining on wireless links from different base stations

b. And the idle value of the current IUR interface bandwidth resource is below the predetermined threshold, the SRNC instructs the DRNS to execute by setting the wireless link establishment message and the wireless link increase message:

1) NodeB performs diversity combination on the wireless links of the same base station

2) DRNC performs diversity combination of wireless links from different base stations

In order to realize the present invention, according to the business type carried by the wireless link, the resource status of the IUR interface, the value meaning of the diversity control domain information element in the cross-IUR wireless link establishment (increase) request can be redefined to indicate that the DRNS is responsible for the wireless link Way to merge:

1. As shown in Figure 1, in step 1, if the currently carried services include real-time services, or if the idle value of the current IUR interface bandwidth resource is above the predetermined threshold, the SRNC will set up/add the wireless link in the message The value of the diversity control domain information element is "MAY". In step 2, the SRNC sends the radio link establishment/increase message to the DRNS. In step 3, when the DRNS finds the diversity control domain information in the radio link establishment/increase message When the value of the element is "MAY", DRNS performs step 6:

1) NodeB performs diversity combination on the wireless links of the same base station

2) DRNC does not perform diversity combining on wireless links from different base stations

2. As shown in Figure 1, in step 1, if the currently carried services only include non-real-time services, and the current IUR interface bandwidth resource idle value is below the predetermined threshold, the SRNC establishes and adds messages by setting the wireless link, Assign the diversity control field information element to "MUST", in step 2, the SRNC sends the radio link establishment/increase message to the DRNS, in step 4, when the DRNS finds the diversity control field in the radio link establishment/increase message When the value of the cell is "MUST", DRNS performs step 5:

1) NodeB performs diversity combination on the wireless links of the same base station

2) DRNC performs diversity combination of wireless links from different base stations

When the information element in the diversity control field is set to "MUST NOT", it means that any form of link combination operation is not allowed. Cells in the diversity control field generally do not take the value of "MUST NOT".

It is also possible not to change the meaning of the value of the information element in the diversity control domain, but to add a mandatory information element non-real-time service field in the establishment message of the cross-IUR interface link, which is used to indicate whether the current service is only non-real-time service, so that DRNS When the value of the information element in the diversity control field is "MAY", it may be determined whether to merge radio links according to the value of the non-real-time service field and the status of the IUR interface resources. The method of merging is as described above.

According to the present invention, by defining the value of the diversity control field, or adding the non-real-time service field of the required cell, the DRNS can merge the wireless links according to the service type and IUR status, thereby eliminating the need for equipment from different manufacturers to be used as the DRNC Uncertainty about whether to combine links across IUR interfaces can also maximize link gain, and take into account resource and delay requirements, which can effectively guarantee user subjective experience.

Although the present invention has been described by the embodiments, those of ordinary skill in the art know that, without departing from the spirit and essence of the present invention, the present invention can have many modifications and variations, and the scope of the present invention is defined by the appended rights Requirements to limit.

Claims (7)

1. a method of handling Radio Link is characterized in that, comprising:

Service wireless network controller is indicated the merging mode of drifting radio network system to described Radio Link according to interface resource situation between the type of service of current wireless link bearer, the described Radio Link corresponding wireless network controller.

2. the method for processing Radio Link according to claim 1 is characterized in that, described present type of service comprises: real time business and non-real-time service.

3. the method for processing Radio Link according to claim 2 is characterized in that, when present type of service was real time business, service wireless network controller indication drifting radio network system carried out:

Radio Link with the base station is carried out diversity to be merged;

Radio Link from different base station is not carried out diversity to be merged.

4. the method for processing Radio Link according to claim 2, it is characterized in that, present type of service is a non-real-time service, and when interface resource was on predetermined threshold between the current described Radio Link corresponding wireless network controller, service wireless network controller indication drifting radio network system carried out:

Radio Link with the base station is carried out diversity to be merged;

Radio Link from different base station is not carried out diversity to be merged.

5. the method for processing Radio Link according to claim 2, it is characterized in that, present type of service is a non-real-time service, and when interface resource was under certain threshold between the current described Radio Link corresponding wireless network controller, service wireless network controller indication drifting radio network system carried out:

Radio Link with the base station is carried out diversity to be merged;

Radio Link from different base station is carried out diversity to be merged.

6. according to the method for one of them described processing Radio Link of claim 3 to 5, it is characterized in that described service wireless network controller is to set up message or Radio Link and increase the value of diversity control domain cell in the message and indicate the drifting radio network system to carry out Radio Link to merge by Radio Link is set.

7. according to the method for one of them described processing Radio Link of claim 3 to 5, it is characterized in that described service wireless network controller indicates the drifting radio network system to carry out the Radio Link merging by increasing essential cell non-real-time service territory.

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