CN1314295C - Common channel deleting method in Iub port NBAP signaling - Google Patents

Abstract

The invention discloses a method for deleting a common channel in Iub port NBAP signaling, comprising: establishing an ID association between channel IDs according to the mapping relationship between the common transmission channel and the public physical channel having a mapping relationship; For the channel to be deleted, in the ID association, search for all channels directly or indirectly associated with the ID of the channel to be deleted, use all the channels found as related channels, and combine the channel to be deleted with the Related channels are deleted together. The invention ensures the integrity of the common channel resources of the base station when the common channel is deleted, and prevents resource leakage.

Description

Deletion method of common channel in Iub port NBAP signaling

technical field

The invention relates to the technical field of communication, in particular to a method for deleting a common channel under the NBAP signaling protocol.

Background technique

The logical resources of the NodeB (base station) are controlled by the RNC (Radio Network Controller, radio network controller), and the RNC sends configuration messages to the NodeB through the Iub port to manage the logical resources of the NodeB. The common channel of NodeB is a part of logical resources, which is also controlled by RNC, and the RNC decides the establishment and release of the common channel. Therefore, it is the key to ensure the consistency and integrity of logical resources between RNC and NodeB to have a clear and complete description of the operation process of the common channel.

The public physical channel PRACH (Physical Random Access Channel, physical channel) that RNC sends to NodeB through the Iub port establishes a message, and the public channel PRACH establishment message includes the following information: a RACH (Random Access Channel, transport channel) public transport channel information, and this One or more pieces of PRACH channel information and one piece of FPACH channel information in a mapping relationship with one RACH channel. The ID (Identification) number of the channel is used in the message to uniquely identify the public physical channel or public transport channel in a cell. The RACH channel is an uplink transmission channel used to carry control information from the mobile station. The PRACH channel is an uplink physical channel and is the final bearer of data information. One RACH channel can be mapped to one or more uplink PRACH channels, that is, That is, the RACH channel and the PRACH channel have a one-to-many relationship (see FIG. 1 ). In this case, the capacity of the RACH can be flexibly determined according to the needs of the operator.

The structure of the public transport channel deletion message of the Iub interface NBAP (Node B Application Part) signaling protocol can only identify a physical channel ID. For the deletion of the public channel PRACH, a PRACH channel ID will be given in the public transport channel message. In the Iub port NBAP signaling protocol, the PRACH channel deletion process is described as follows:

If the common physical channel identified in the common transport channel deletion request message is a PRACH channel, the NodeB shall delete the PRACH channel indicated in the message and the common transport channel RACH supported by the PRACH channel.

Since only one physical channel can be identified in the structure of a public transport channel deletion message, according to the deletion method in the protocol, only the PRACH channel and the public transport channel RACH supported by the PRACH channel are deleted, so there will be no RACH channel in the NodeB The corresponding PRACH channel (see Fig. 2, the PRACH channel 212 identified in the structure of the RACH channel 201 represented by the dotted line box and its deletion message is deleted, but the RACH channel 201 is originally mapped to a plurality of PRACH channels 211, 212..., There are also PRACH channels 211) that are not deleted. That is to say, this way of channel deletion will cause incompleteness of NodeB public channel resources and cause resource leakage.

References: [1] 3GPP TS 25.433 "UTRAN Iub interface NBAP signaling".

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for deleting common channel in Iub mouth NBAP signaling, solve existing agreement and can only delete a physical channel that is identified by message, have produced the corresponding PRACH channel that does not have RACH channel, thereby Technical issues caused by resource leaks.

In order to achieve the above object, the present invention provides a method for deleting common channels in Iub port NBAP signaling, which is characterized in that it includes: for common transport channels and public physical channels with a mapping relationship, each channel is established according to the mapping relationship ID association between IDs; for the channel to be deleted to be deleted, in the ID association, search for all channels directly or indirectly associated with the ID of the channel to be deleted, use all the channels found as relevant channels, and Delete the channel to be deleted together with the relevant channel.

The method for deleting the above-mentioned public channel is characterized in that the ID association is a two-way association, through which it is guaranteed that the transmission channel corresponding to the physical channel can be found through the ID of any physical channel; through the ID of any transmission channel , all physical channels corresponding to this transport channel can be found.

The deletion method of above-mentioned public channel is characterized in that, wireless network controller sends the deletion request message of public physical channel to base station by Iub mouth, has in the message as the ID of a physical channel of described channel to be deleted, through described two-way Associating finds the transmission channel corresponding to the channel to be deleted and all physical channels corresponding to the transmission channel, so as to find the relevant channel.

The above-mentioned common channel deletion method is characterized in that the ID association is a one-way association, and the one-way association ensures that all physical channels corresponding to this transmission channel can be found through the ID of any transmission channel.

The deletion method of above-mentioned public channel is characterized in that, revises the message content of public physical channel deletion request message in the existing NBAP signaling protocol, and the radio network controller directly sends the ID of the transmission channel to be deleted as the channel ID to be deleted, according to The ID of the channel to be deleted finds all physical channels that have a mapping relationship with the channel to be deleted, so as to find the relevant channel.

The method for deleting the above-mentioned common channel is characterized in that the establishment of the ID association between the channel IDs further includes: step A, the base station receives a public transport channel establishment message; step B, judging whether the establishment message is a public physical channel Established, if yes, enter step C, otherwise enter step D; step C, extract the information of the public transport channel and public physical channel, and establish the association between the ID of the transport channel and the ID of the physical channel; step D, end.

The method for deleting the common channel above is characterized in that deleting the channel to be deleted together with the relevant channel further includes: step a, the base station receives a common transmission channel deletion message; step b, judging whether the channel type in the message is If it is a PARACH channel, then enter step c, otherwise enter step d; step c, obtain the ID value in the message, and find all channels having a mapping relationship with the channel to be deleted according to the ID association as the relevant channel, And delete the channel to be deleted and the relevant channel together; step d, end.

Technical effect of the present invention is:

The method of the present invention not only deletes the PRACH channel indicated in the channel deletion message and the common transport channel RACH supported by the PRACH channel, but also deletes all the PRACH channels that have a mapping relationship with the RACH, thus ensuring that common channel deletion is performed It ensures the integrity of NodeB public channel resources and prevents resource leakage.

Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

The corresponding relationship between Fig. 1 RACH channel and PRACH channel;

Figure 2. The deletion method of the current protocol. The dotted line indicates the channel that has been deleted;

The two-way association of Fig. 3 RACH channel and PRACH channel;

The one-way association of Fig. 4 RACH channel and PRACH channel;

Fig. 5 The processing steps after the NodeB receives the public transport channel establishment message sent by the RNC;

Fig. 6 The processing steps after the NodeB receives the common transport channel deletion message from the RNC.

Detailed ways

The present invention proposes a solution to this resource leakage situation, and its core content is not only to delete the PRACH channel indicated in the channel deletion message and the common transport channel RACH supported by the PRACH channel, but also to delete all RACH channels that have a mapping relationship with the RACH The PRACH channel is also deleted together, so that the integrity of the NodeB common channel resource can be guaranteed when the common channel is deleted.

The present invention provides two kinds of implementation modes for this solution:

Implementation Mode 1

The RNC will first send a public channel PRACH establishment request message to the NodeB through the Iub port, and the message will include the following information, the ID of one RACH channel, and the IDs of one or more PRACH channels.

Due to the following description in the Iub port NBAP signaling protocol:

If any channel in the common channel establishment request message already exists, NodeB will reply that the establishment fails.

It can be considered that the RACH channel identified in the common channel PRACH establishment request message and one or more PRACH channels mapped to it have been fully described in the common channel establishment message, and the same RACH channel will not be included in other common channel PRACH establishment messages Or PRACH channel information.

In this way, the NodeB can establish bidirectional associations between the RACH channel 301 and multiple PRACH channels 311, 312, and 313 according to the PRACH channel and RACH channel information in the common channel establishment message (see FIG. 3 ). This two-way association can ensure that the RACH channel 301 corresponding to the PRACH channel can be found through the ID of any PRACH channel; all the PRACH channels corresponding to the RACH channel 301 can be found through the ID of the RACH channel 301 .

When RNC sends public channel PRACH deletion request message to NodeB through Iub mouth, there is only the ID of a PRACH channel (such as PRACH channel 311) in the message, according to this ID value, search the RACH channel 301 associated with PRACH channel 311, then according to RACH channel The associated information of 301 finds all the PRACH channels 312, 313 that have a mapping relationship with this RACH channel 301, and deletes the RACH channel 301 and all the PRACH channels 311, 312, 313 that have a mapping relationship with this RACH channel.

Implementation mode two

The NodeB establishes a one-way association between the RACH channel 401 and the PRACH channels 411, 412, and 413 according to the information of the PRACH channel and the RACH channel in the common channel establishment message (see FIG. 4 ). This one-way association can ensure that all PRACH channels 411 , 412 , and 413 corresponding to the RACH channel can be found through the ID of the RACH channel 401 .

Modify the message content of the common channel PRACH deletion request message in the existing protocol, RNC directly sends the ID of the RACH channel 401 to be deleted, and finds all PRACH channels 411, 412, 413 that have a mapping relationship with this RACH channel 401 according to the ID value , delete the RACH channel 401 and all the PRACH channels 411 , 412 , and 413 that have a mapping relationship with the RACH channel.

Comparison of two implementations

1. Embodiment 1 does not change the message content of the existing deletion request message in the protocol, but achieves the purpose of deleting the RACH channel and all PRACH channels associated with the RACH channel by establishing a bidirectional association at the NodeB.

2. Embodiment 2 changes the message content of the existing delete request message in the protocol, but only needs to establish a one-way association relationship between the RACH channel and the PRACH channel on the NodeB side, and then the RACH channel and the RACH channel associated with the RACH channel can be deleted. Purpose of all PRACH channels.

The specific operation steps of the embodiment are described in detail below

Referring to Figure 5, it is the processing steps after the NodeB receives the public transport channel establishment message sent by the RNC, including:

Step 501: NodeB receives the public transport channel establishment message;

Step 502: judging whether the message is a PRACH channel setup, if so, proceed to step 503, otherwise proceed to step 504;

Step 503: extract RACH channel and PRACH channel information, and establish an association relationship between RACH ID and PRACH ID. Adopting the first implementation mode requires establishing a two-way association, and adopting the second implementation mode to establish a one-way association;

Step 504: end.

Referring to accompanying drawing 6, it is the processing steps after NodeB receives the public transport channel deletion message sent by RNC, including:

Step 601: Receive a common transmission channel deletion message;

Step 602: judge whether the physical channel type in the message is a PRACH channel, if yes, enter step 603, otherwise enter step 604;

Step 603: Obtain the ID value in the message. If it is Embodiment 1: it is the ID of the PRACH channel, then find the corresponding RACH channel according to the two-way association established in Figure 1, and then find the corresponding channel according to the association of the RACH channel. All PRACH channels of the RACH channel are deleted together; if it is the second embodiment: it is the ID of the RACH channel, then according to the one-way association established in Figure 4, all PRACH channels corresponding to the RACH channel are found and deleted together;

Step 604: end.

As can be seen from the above, the method of the present invention not only deletes the PRACH channel indicated in the channel deletion message and the common transport channel RACH supported by the PRACH channel, but also deletes all PRACH channels that have a mapping relationship with the RACH, thus ensuring that The integrity of the NodeB public channel resources when the public channel is deleted prevents resource leakage.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the implementation scope of the present invention; all equivalent changes and modifications made according to the present invention are covered by the patent scope of the present invention.

Claims (6)

1, the delet method of common signal channel in a kind of Iub mouth NBAP signaling is characterized in that, comprising: to Common transport channel and the public physic channel with mapping relations, set up the identifier ID association between the identifier ID of each channel according to described mapping relations; For the channel to be deleted that will delete, in described identifier ID association, search and direct or indirect all the related channels of the described identifier ID of waiting to delete channel, all channels of finding as correlated channels, and are waited to delete channel and described correlated channels is deleted together with described.

2, the delet method of common signal channel according to claim 1, it is characterized in that, described identifier ID is associated as bi-directional association, by the identifier ID of this bi-directional association assurance by any physical channel, can find this physical channel corresponding transmission channel; By the identifier ID of any transmission channel, can find all physical channels of this transmission channel correspondence.

3, the delet method of common signal channel according to claim 2, it is characterized in that, radio network controller sends the deletion request message of public physic channel to the base station by the Iub mouth, has the identifier ID of waiting to delete a physical channel of channel as described in the message, find with described by described bi-directional association and to wait to delete the channel corresponding transmission channel, and and all physical channels of this transmission channel correspondence, thereby find described correlated channels.

4, the delet method of common signal channel according to claim 1, it is characterized in that, described identifier ID is associated as unidirectional association, by this unidirectional related identifier ID that guarantees by any transmission channel, can find all physical channels of this transmission channel correspondence.

5, the delet method of common signal channel according to claim 4, it is characterized in that, revise the message content of public physic channel deletion request message in the existing NBAP signaling protocol, the identifier ID of the transmission channel that the direct transmission of radio network controller will be deleted is as the identifier ID of waiting to delete channel, find all physical channels that mapping relations are arranged with channel described to be deleted according to the described identifier ID of deleting channel of waiting, thereby find described correlated channels.According to the delet method of claim 1,2,3,4 or 5 described common signal channels, it is characterized in that 6, the identifier ID association between the described identifier ID of setting up each channel further comprises:

Steps A, base station receive that Common transport channel sets up message;

Step B judges that whether this sets up message is that public physic channel is set up, and is then to enter step C, otherwise enters step D;

Step C extracts the information of Common transport channel and public physic channel, sets up the incidence relation between the identifier ID of the identifier ID of transmission channel and physical channel;

Step D finishes.

7, the delet method of common signal channel according to claim 1 is characterized in that, waits to delete channel and described correlated channels and deletes further together and comprise described:

Step a, Common transport channel deletion message is received in the base station;

Step b judges whether the channel type in the message is the PARACH channel, is then to enter step c, otherwise progressive rapid d;

Step c obtains the identifier ID value in the message, according to described identifier ID associative search to all channels that have mapping relations with channel described to be deleted as described correlated channels, and wait to delete channel and described correlated channels is deleted together with described;

Steps d finishes.

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