RU2450454C2 - Method of configuring absolute grant mapping table for drifting radio network controller - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: serving radio network controller informs the drifting radio network controller about the absolute grant mapping table used by the absolute grant channel of the enhanced dedicated channel (E-AGCH) through signalling. The drifting radio network controller saves the configuration message, then returns the response message to the serving radio network controller. The absolute grant mapping table, the use of which Node B, under the control of the drifting radio network controller, is informed by the serving radio network controller, is compatible with the absolute grant mapping table, the use of which user equipment is informed by the serving radio network controller through an air-gap interface.

EFFECT: higher efficiency of using resources and security of the system.

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Description

Technical field

This invention relates to the field of radio communication systems and relates, in particular, to a method for configuring an absolute grant conversion table for a drift radio network controller used by an absolute grant channel (E-AGCH) of an enhanced dedicated channel.

BACKGROUND OF THE INVENTION

The access network includes one or more radio network subsystems, each of which is a subnet in the access network and contains a radio network controller and one or more nodes B (node B is also called a base station). A radio network controller is a network element responsible for managing radio resources in an access network; the main functions of node B include performing physical layer processing on the air interface, as well as some basic control operations for radio resources. When communication links are established between a User Equipment (UE) and a plurality of radio network controllers, various radio network controllers are connected via lur interfaces, the radio network controller responsible for communication between the user equipment and the core network being called the serving radio network controller, and the radio network controller responding for signaling and transmitting data for UE equipment, but not responsible for communication between the UE equipment and the core network, called the radio network drift controller and.

During the optimization of methods in modern systems in order to increase user convenience and increase system throughput, the technology of high-speed uplink packet access has continuously developed, and a high-order modulation mode - 16-position quadrature amplitude modulation (16 Quadrature Amplitude Modulation, 16QAM). The introduction of a high-order 16QAM modulation mode means that data can be transmitted by users at a higher speed, and accordingly, higher power is required to meet the quality of service requirements, which leads to a significant change in the way the uplink power is regulated and in the way Node B defines a grant.

There are two ways to determine a grant for node B: one is the use of an absolute grant (information about absolute power) and the other is the use of a relative grant (information about comparative power). Regardless of whether an absolute grant or relative grant is used, it actually turns out that node B indicates the available power resource (which may correspond to the absolute grant value) to the user equipment based on factors such as the resources allocated to the cell, indication of the user channel quality and the size of the data required, and then informs the user equipment of the usable power resource by means of an index or by means of information about the relative Accelerating / decrease. The user equipment determines the rate at which data can be transmitted based on the power resource. It is known that node B must know clearly the corresponding relationship between the index and the absolute grant value to ensure that the user equipment determines the speed at which data can be transmitted, within the maximum power that node B expects to provide to the user equipment for transmission.

After the introduction of 16QAM mode, the previous corresponding dependencies between the indices and grant values (capacities) ceased to meet the new requirements, therefore, in the protocol of the 3GPP Third Generation Partnership Project (3GPP), new tables of the corresponding dependencies between the indices and values were introduced grant for absolute grant and relative grant, respectively, that is, higher grant values were introduced to meet the requirement of a higher speed Transferring. There are currently two protocol-specific absolute grant conversion tables for use by the E-AGCH. These tables are shown as tables 1 and 2, where the absolute grant value conversion table shown as table 1 is the relationship table between absolute grant values and indices before the 16QAM mode is introduced, and the self-adaptive absolute grant value conversion table shown as table 2 is table dependencies between absolute grant values and indices after the introduction of 16QAM mode. Elements of two types: index numbers and absolute grant values are included in the contents of each table.

Table 1 Absolute Grant Conversion Table Absolute Grant Value Index (168/15) 2 × 6 31 (150/15) 2 × 6 thirty (168/15) ² × 4 29th (150/15) ² × 4 28 (134/15) ² × 4 27 (119/15) ² × 4 26 (150/15) ² × 2 25 (95/15) ² × 4 24 (168/15) ² 23 (150/15) ² 22 (134/15) ² 21 (119/15) ² twenty (106/15) ² 19 (95/15) ² eighteen (84/15) ² 17 (75/15) ² 16 (67/15) ² fifteen (60/15) ² fourteen (53/15) ² 13 (47/15) ² 12 (42/15) ² eleven (38/15) ² 10 (34/15) ² 9 (30/15) ² 8 (27/15) ² 7 (24/15) ² 6 (19/15) ² 5 (15/15) ² four (11/15) ² 3 (7/15) ² 2 ZERO_GRANT * one INACTIVE * 0

table 2 Self-adaptive Absolute Grant Value Conversion Table Absolute Grant Value Index (377/15) ² × 4 31 (237/15) ² × 6 thirty (168/15) ² × 6 29th (150/15) ² × 6 28 (168/15) ² × 4 27 (150/15) ² × 4 26 (134/15) ² × 4 25 (119/15) ² × 4 24 (150/15) ² × 2 23 (95/15) ² × 4 22 (168/15) ² 21 (150/15) ² twenty (134/15) ² 19 (119/15) ² eighteen (106/15) ² 17 (95/15) ² 16 (84/15) ² fifteen (75/15) ² fourteen (67/15) ² 13 (60/15) ² 12 (53/15) ² eleven (47/15) ² 10 (42/15) ² 9 (38/15) ² 8 (34/15) ² 7 (30/15) ² 6 (27/15) ² 5 (24/15) ² four (19/15) ² 3 (15/15) ² 2 ZERO_GRANT * one INACTIVE * 0

However, at present, the serving radio network controller via 3GPP informs about which absolute grant value conversion table should be used, only user equipment via the air interface, but does not inform the drift radio network controller via lur interface, and there are no developed specifications for this. as a result, grant values corresponding to node B and user equipment are obtained from various dependency tables between grant values and indices, which is to inconsistency between the resource allocation and use of power and, eventually, leads to a decrease in system capacity due to congestion or lack of use of the free resource capacity of the user equipment.

SUMMARY OF THE INVENTION

The technical problem solved by this invention is the provision of such a method for configuring an absolute grant conversion table for a drift radio network controller that guarantees efficient use of resources and system security.

To solve the above technical problem, the present invention provides a method for configuring an absolute grant conversion table for a drift radio network controller, according to which:

the serving radio network controller informs, by signaling, the drift radio network controller of the absolute grant conversion table used by the absolute grant channel (E-AGCH) of the enhanced dedicated channel; and

the drift radio network controller returns a response message to the serving radio network controller after storing the configuration information.

In addition, the aforementioned method may have the following distinctive features: the absolute grant conversion table is compatible with the absolute grant conversion table, about the use of which the E-AGCH channel of the user equipment is informed via the air interface.

In addition, the aforementioned method may have the following distinguishing features: the signaling transmitted by the serving radio network controller is a radio link setup request message or a radio link add request message, and after receiving a radio line setup request message or a radio link add request message, the radio network drift controller sends to the serving radio network controller, a response message to the establishment of a radio link or a response message n and a request to add a radio link.

In addition, the aforementioned method may have the following distinctive features: the signaling transmitted by the serving radio network controller is a message for preparing a radio line reconfiguration, and after receiving the message for preparing a radio line reconfiguration, the drift radio network controller sends a message about the readiness of radio line reconfiguration to the serving radio network controller.

In addition, the above method may have the following distinguishing features: the signaling transmitted by the serving radio network controller is a radio link reconfiguration request message, and after receiving the radio line reconfiguration request message, the radio network drift controller sends a response to the radio network reconfiguration request to the serving radio network controller.

In addition, the aforementioned method may have the following distinctive features: informing the node B about the absolute grant conversion table used by the E-AGCH is implemented by including the absolute grant conversion table identification number in the alarm, and this identification number is used to identify the absolute grant conversion table used.

In addition, the aforementioned method may have the following distinguishing features: the absolute grant conversion table identification number is in the range from 0 to 1.

In addition, the aforementioned method may have the following distinguishing features: the absolute grant conversion table is a table of dependencies between absolute grant values and indices before the introduction of 16QAM mode or a table of dependencies between absolute grant values and indices after the introduction of 16QAM mode; the contents of the absolute grant conversion table includes two types of elements: index numbers and corresponding absolute grant values.

In addition, the above method may have the following distinctive features: the serving radio network controller is a radio network controller responsible for communication between the user equipment and the core network; and the drift radio network controller is a radio network controller responsible for signaling and transmitting data for user equipment, but not responsible for communication between user equipment and the core network.

From the above it is seen that in the present invention the absolute grant conversion table, the use of which the node B under the control of the drift radio network controller is informed by the serving radio network controller, is compatible with the absolute grant conversion table, the use of which the user equipment is informed of by the serving radio network controller via the air interface. This ensures that the absolute grant values corresponding to the Node B and the user equipment are obtained from the same absolute grant conversion table, that is, from the same dependency table between the absolute grant values and the indices, and their distribution and use of power resources are consistent, so that the efficient use of resources and the security of the system are ensured.

Brief Description of the Drawings

1 is a schematic diagram of a method for configuring an absolute grant conversion table for a node B of a drift radio network controller by a serving radio network controller according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram of a method for configuring an absolute grant conversion table for a node B of a drift radio network controller by a serving radio network controller according to a second embodiment of the present invention.

FIG. 3 is a schematic diagram of a method for configuring an absolute grant conversion table for a node B of a drift radio network controller by a serving radio network controller according to a third embodiment of the present invention.

Preferred Embodiments of the Invention

The basic concept of this invention is as follows: the serving radio network controller configures the absolute grant conversion table for node B, which is controlled by the drift radio network controller (the configuration is for the user equipment), and makes the configured absolute grant conversion table compatible with the absolute grant conversion table, about the use of which the user equipment is informed through the air interface to guarantee The absolute grant values corresponding to the Node B and the user equipment are obtained from the same absolute grant conversion table, i.e. the same dependency table between the absolute grant values and the indices, to guarantee compatibility between the distribution and use of the power resource by them thus ensuring efficient use of resources and system security.

The serving radio network controller may inform the drift radio network controller of an absolute grant conversion table that may be used by the E-AGCH via signaling. The signaling may be one of the following messages: a request for establishing a radio link, a request for preparing a reconfiguration of a radio link, a request for reconfiguring a radio link, and a request for adding a radio link. The absolute grant conversion table may be represented by its identification number. Index values in the absolute grant conversion table can increase regularly from 0 or 1.

The technical scheme of the present invention will be described in more detail below together with the accompanying drawings and embodiments of the invention.

Embodiment 1 of the Invention

In this embodiment, the serving radio network controller informs node B of the absolute grant conversion table that can be used by the E-AGCH, by requesting a radio link establishment or a request for adding a radio link, as shown in FIG. 1:

step 110: the serving radio network controller sends a radio link establishment request message or a radio link addition request message to a drift radio network controller; this message carries the identification number of the absolute grant conversion table that can be used by the E-AGCH channel of the drift radio network controller, and this identification number of the absolute grant conversion table is compatible with the identification number of the absolute grant conversion table, the use of which the user equipment is informed through the air interface;

step 120: the drift radio network controller stores the configuration information and then sends a response message to the request to establish a radio link or a response message to a request to add a radio link to the serving radio network controller.

Embodiment 2 of the Invention

In this embodiment, the serving radio network controller informs node B of the absolute grant conversion table that can be used by the E-AGCH according to the synchronous radio link reconfiguration stream, as shown in FIG. 2:

step 210: the serving radio network controller sends a radio link reconfiguration preparation message to the radio network drift controller; this message carries the identification number of the absolute grant conversion table, which can be used by the E-AGCH, and this identification number of the absolute grant conversion table is compatible with the identification number of the absolute grant conversion table, about the use of which the user equipment is informed through the air interface;

step 220: the radio network drift controller sends the radio link reconfiguration preparation message to its node B and then sends the radio link reconfiguration ready message to the serving radio network controller.

Embodiment 3 of the Invention

In this embodiment, the serving radio network controller informs the node B of the absolute grant conversion table that can be used by the E-AGCH according to the synchronous radio link reconfiguration stream, as shown in FIG. 3:

step 310: the serving radio network controller sends a radio link reconfiguration preparation message to the radio network drift controller; this message carries the identification number of the absolute grant conversion table, which can be used by the E-AGCH, and this identification number of the absolute grant conversion table is compatible with the identification number of the absolute grant conversion table, about the use of which the user equipment is informed through the air interface;

step 320: the drift radio network controller saves the configuration message and then sends a response to the radio link reconfiguration request to the serving radio network controller.

In the above three embodiments, the drift radio network controller may further send the absolute grant conversion table identification number to the node B that is under its control, and this node B is only that node B where the corresponding user equipment is located.

It should be noted that the absolute grant conversion table in the above three embodiments of the invention may be the absolute grant conversion table shown in FIG. 1 or FIG. 2, the identification number of which can be 0 and 1, respectively.

Industrial applicability

The present invention is applicable to radio communication systems such as WCDMA, TD-SCDMA, CDMA, CDMA2000, WiMAX and others.

Claims (8)

1. A method for configuring an absolute grant conversion table for a drift radio network controller, according to which:
the serving radio network controller configures an absolute grant conversion table for node B that is controlled by the drift radio network controller;
the serving radio network controller informs the drift radio network controller of the absolute grant conversion table used by the absolute grant channel (E-AGCH) of the enhanced dedicated channel; and
the drift radio network controller returns a response message to the serving radio network controller after saving the configuration information;
the indicated absolute grant conversion table is compatible with the absolute grant conversion table, on the use of which the E-AGCH channel of the user equipment is informed via the air interface. 2. The method of claim 1, wherein the signaling transmitted by the serving radio network controller is a radio link setup request message or a radio link addition request message, and after receiving a radio line setup request message or a radio link add request message, the radio network drift controller sends to the serving radio network controller, a response message to a request to establish a radio link or a response message to a request to add a radio link. 3. The method according to claim 1, in which the signaling transmitted by the serving radio network controller is a message for preparing a radio line reconfiguration, and after receiving a message for preparing a radio line reconfiguration, the drift radio network controller sends a message about the readiness of the radio line reconfiguration to the serving radio network controller. 4. The method according to claim 1, in which the signaling transmitted by the serving radio network controller is a radio link reconfiguration request message, and after receiving the radio line reconfiguration request message, the drift radio network controller sends a response to the radio link reconfiguration request to the serving radio network controller. 5. The method according to any one of claims 2 to 4, in which a message to the node B about the absolute grant conversion table used by the E-AGCH channel is implemented by including the absolute grant conversion table identification number in the alarm, and this identification number is used to identify the conversion table used absolute grant. 6. The method according to claim 5, in which the identification number of the absolute grant conversion table lies in the range from 0 to 1. 7. The method according to claim 1, in which the absolute grant conversion table is a table of dependencies between absolute grant values and indices before the introduction of 16QAM mode or a table of dependencies between absolute grant values and indices after the introduction of 16QAM mode; and the contents of the absolute grant conversion table includes index numbers and corresponding absolute grant values. 8. The method according to claim 1, in which the serving radio network controller is a radio network controller responsible for communication between the user equipment and the core network; and the drift radio network controller is a radio network controller responsible for signaling and transmitting data for user equipment, but not responsible for communication between user equipment and the core network.

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