KR20030040972A - Method for transporting control information to high speed dsch in a mobile communication system - Google Patents

Abstract

PURPOSE: A method of transmitting control information for an HS-DSCH(High-Speed Downlink Shared Channel) in a mobile communication system is provided to define messages of a control plane or a user plane, a frame format, and each procedure for transmitting information on power control, thereby performing power control for an HS-DSCH indicator field for the HS-DSCH. CONSTITUTION: A radio interface parameter update control frame comprises as follows. A 2-byte radio interface parameter update flag field shows whether or not parameters exist. A 1-byte connection frame number field is selectively configured. An HI(HS-DSCH Indicator) PO(Power Offset) field configures a TPC(Transmit Power Control) PO and an information field of a DPC(Downlink Power Control) mode with 1 byte, and includes an HS-DSCH indicator field PO value for power control for an HI field. An HI PO-primary field has a PO value for the HI field applied to a DPCCH(Dedicated Physical Control Channel) during soft handover. A spare expansion field is configured. An entire payload is configured more than 6 bytes.

Description

METHODO FOR TRANSPORTING CONTROL INFORMATION TO HIGH SPEED DSCH IN A MOBILE COMMUNICATION SYSTEM}

The present invention relates to a control frame for a high-speed downlink shared channel (hereinafter, abbreviated as HS-DSCH) in a mobile communication system, and particularly, an HS-DSCH indicator (HI: HS) for an HS-DSCH. The present invention relates to a method of transmitting control information for a high speed downlink shared channel in a mobile communication system which presents a new control message or frame for updating power information of a -DSCH indicator field.

In addition, the control message for updating the power information of the HS-DSCH indicator field or the power control information of the HS-DSCH indicator field included in the frame may be used at the same time as the soft handover of the DPCCH associated with the HS-DSCH. This information is conveyed through a new control message or frame between the base station and the base station control station and between the base station control station and the base station control station.

In addition, in the present invention, when transmitting such a control message, two methods, a method of sending to the user plane and a method of sending to the control plane, will be considered.

In the 3GPP standard system, a new High Speed Downlink Packet Access Downlink Shared CHannel (HS-DSCH) has been proposed to support a high speed downlink packet data service. The HS-DSCH is used in a system conforming to Release 5, which defines High Speed Downlink Packet Access among 3GPP standards, and is a W-CDMA system that conforms to the existing Release 99 / Release 4 standard of 3GPP. Unlike, it uses a short Transmission Time Interval (TTI) (3 slots, 2 ms) and supports various modulation code sets (MCS) to support high data rates. do. Optimum performance can be achieved by selecting the best MCS for the channel situation. To this end, a hybrid ARQ (HARQ) technique, which combines an automatic repeat request (ARQ) technique and a channel coding technique, enables reliable transmission. It is also proposed to support up to four users simultaneously through CDM (Code Division Multiplexing).

1 is a diagram illustrating a structure of a radio access network during soft handover between different control stations 116 and 118. In the UMTS radio access network 112, a serving control station SRNC 116 and a destination control station DRNC, Under a wireless environment where 118 controls a plurality of base stations 313 and 317, respectively, the mobile station 124 simultaneously establishes a call channel with each of the base stations Node B, 120 and 122 present in the two control stations 116 and 118 during soft handover. It is in a holding state.

Here, the serving control station 116 manages the dedicated radio resources assigned to each mobile station, and the destination control station (DRNC: drift RNC) 118 indicates that the mobile station 124 leaves the serving control station 116 itself. When moving to the area of the control station of the destination that provides radio resources to the mobile station 124, and exists in the destination radio network subsystem (DRNS: Drift RNS). Several base stations exist below the control stations 116 and 118, and the mobile station in soft handover is in a state of maintaining transmission simultaneously with each base station belonging to these two control stations. In each case, although sometimes handed over from one of the base stations to a new base station, the mobile station will always communicate with at least two base stations of two other base stations. As described above, it can be seen that when the mobile station is handed over, controlling the power in the downlink is very important.

In addition, the 3GPP system has a downlink shared channel (DSCH) as a channel for transmitting burst data types. 2 is a diagram illustrating a configuration of a downlink shared channel (DSCH). In FIG. 2, the downlink shared channel (DSCH) is configured as a radio frame of 10 ms, and may be shared and used by different users in each frame. This would be possible by multiple users being assigned one node per frame from the channelization code for the downlink shared channel (DSCH).

3 is a diagram illustrating a configuration of a dedicated channel (DCH).

Referring to FIG. 3, the dedicated channel DCH includes a radio frame having a frame period T _f of 10 ms, and includes 15 slots Slot # 0 to Slot # 14 for each radio frame. Here, one slot length (T _slot) is 2560 chips. In addition, the Dedicated Channel (DCH) is alternately interposed between a Dedicated Physical Data CHannel (DPDCH) and a Dedicated Physical Control CHannel (DPCCH). In the dedicated channel DCH, N _data1 bits of data Data1 may be loaded on the first physical data channel in order from the left, and TPC (N _TPC bits) and TFCI (N _TFCI bits) may be loaded on the first physical control channel. . In addition, the next physical data channel may carry N _data2 bits of data Data2, and the second physical control channel may carry N _pilot bits of pilot signals. Here, the TFCI field contains information on a channel currently being transmitted. For example, the TFCI field may transmit information on the amount of data transmitted in the current radio frame, a coding method, and the like.

The physical channel frame structure contained in the downlink shared control channel is shown in FIG. In order to transmit downlink control information required for supporting the HS-DSCH, a shared control channel has been newly defined. This shared control channel is transmitted by including transport format and resource related information (TFRI) and HARQ-related information.

The TFRI includes information about an HS-DSCH transport channel set size, a modulation method, a coding rate, and a number of multicodes, and HARQ-related information includes a block number. This includes information such as redundancy versions. In addition, information about a mobile station identifier (UE ID: UE IDentification) for informing which user's information is transmitted is transmitted.

The HS-DSCH indicator (HI) indicates an indicator indicating to the mobile station (UE) whether data is to be transmitted through the HS-DSCH and which downlink shared control channel should be read. )to be. Mobile stations using the HS-DSCH have an associated dedicated downlink dedicated physical channel (DPCH) that carries the HS-DSCH indicator (HI) field, and as shown in FIG. It can be shared with users at the same time.

FIG. 5 illustrates signaling of a downlink shared control channel for transmitting downlink control information. As shown in the figure, it is possible to support several users at the same time, the control information for this (control information) uses a shared control channel (shared control channel) assigned to each user. The maximum user that can be supported is M = 4.

6 is a diagram illustrating timing of a downlink shared control channel and an HS-DSCH. As shown in the figure, the HS-DSCH indicator (HI) is associated with the HS-DSCH, which is transmitted on a dedicated physical channel (DPCH), which indicates that data will be transmitted to a mobile station through the HS-DSCH. It acts as an indicator for telling in advance. That is, when the HS-DSCH indicator bit is determined, the mobile station can read control information transmitted through a shared control channel and recover HS-DSCH data.

The transmission timing of the HS-DSCH indicator HI may be variable by one slot interval (0.67 ms), the HS-DSCH and the shared control channel may have overlapping intervals, and the shared control channel is transmitted first. The HS-DSCH is then transmitted. In this case, the overlapping interval of these two channels can be transmitted as much as possible to reduce the transmission delay.

The control frame format at the time of updating the air interface parameter among the control frames is shown in FIG. 7. Referring to FIG. 7, a 2-byte flag field indicating the presence or absence of a parameter, an 8-byte CFN (connection frame number), a 5-bit transmit power control (TPC) power offset (PO), and 1 bit It is used when updating DPC (Downlink Power Control) mode information. It consists of a payload of 4 bytes or more in total.

Currently, the channel type and information contained in the physical channel in the physical layer for the HS-DSCH (High Speed Downlink SharedChannel) for high-speed packet service are defined, but the base station and the base station control station for the HS-DSCH There is no definition for higher layer control messages or frames between the base station control station and other base station control stations.

Therefore, it is difficult to guarantee the high performance of HS-DSCH because only the control messages or frames used in the existing downlink shared channel (DSCH) cannot support all the information contained in the new physical channels in the HS-DSCH. do.

Therefore, in order to operate the HS-DSCH correctly, a new control message and frame have to be proposed to conform to the HS-DSCH. For example, for the operation of the HS-DSCH, the HS-DSCH indicator bit is transmitted to the associated DPCCH. When a soft handover of the associated DPCCH occurs, the power control on the HS-DSCH indicator (HI) field is performed. A proposal comes out and also a primary cell and a non-primary cell in performing power control on a HI-DSCH Indicator (HI) field when a soft handover of an associated DPCCH occurs. cell) A method of controlling power by classifying a case is also proposed, but the current control message or frame for 3GPP Release 99 / Release 4 does not support this.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In the mobile communication system, a control message or a control frame can be provided to support information contained in new physical channels in a high speed downlink control channel. It is an object of the present invention to provide a control information transmission method for a high speed downlink shared channel.

Another feature of the present invention is that a control message or control frame for power control of a high speed downlink control channel is used between a base station and a base station control station, and between a base station control station and a base station control station. Its purpose is to provide a control information transmission method for a shared channel.

Another feature of the present invention is a high speed downlink sharing in a mobile communication system that can transmit control information on a high speed downlink shared channel in the form of a control frame through a user plane or in the form of a NABP or RNSAP message to the control plane. The purpose is to provide a control information transmission method for a channel.

According to another aspect of the present invention, in a case where soft handover of a dedicated physical control channel associated with a high speed downlink shared control channel occurs, power control of an HS-DSCH indicator field may be performed according to embodiments. It is an object of the present invention to provide a control information transmission method for a high speed downlink shared channel in a mobile communication system.

1 is a structure of a wireless access network in soft handoff during different base station control periods.

2 is a diagram illustrating a configuration of a dedicated channel (DCH).

3 illustrates a configuration of a downlink shared channel (DSCH).

4 illustrates a physical channel frame structure configured in a downlink shared control channel.

5 illustrates an example of a user who can share a downlink sharing control channel.

6 illustrates the timing of a downlink shared control channel and an HS-DSCH.

7 is a block diagram of a conventional air interface parameter update control frame format.

8 illustrates a UMTS Radio Network control plane protocol.

9 illustrates a UMTS Radio Network user plane protocol.

10 is a format diagram of a radio interface parameter update control frame for power control of an HS-DSCH indicator field according to a first embodiment of the present invention;

FIG. 11 is a diagram illustrating a format configuration of an air interface parameter update control frame for power control of an HS-DSCH indicator field according to the embodiment of FIG. 2 of the present invention; FIG.

12 is a configuration diagram of a radio interface parameter update control frame for power control of an HS-DSCH indicator field according to a third embodiment of the present invention.

FIG. 13 is a diagram illustrating a format configuration of a radio interface parameter update control frame for power control of an HS-DSCH indicator field according to an embodiment of the present invention. FIG.

14 is a view illustrating a format configuration of an air interface parameter update control frame for power control of an HS-DSCH indicator field according to a fifth embodiment of the present invention.

FIG. 15 is a diagram illustrating a format configuration of an air interface parameter update control frame for power control of an HS-DSCH indicator field according to the embodiment of FIG.

In order to achieve the above object, a method of transmitting control information for a high speed downlink shared channel in a mobile communication system according to the present invention,

A method of transmitting control information for a high speed downlink shared channel when a dedicated physical control channel (DPCCH) is in a soft handover state and only one base station transmits a high speed downlink shared channel (HS-DSCH) in a mobile communication system. In

Added a field containing information about the HS-DSCH indicator power offset value sent from the control plane for power control of the HS-DSCH indicator field of the dedicated physical dedicated channel associated with the high speed downlink shared channel (HS-DSCH). It is characterized by using one control frame.

Preferably, the control frame includes an associated HS-DSCH indicator power offset field of at least 7 bits.

Another feature of the present invention is a control for a high speed downlink shared channel when a dedicated physical control channel (DPCCH) is in soft handover state and only one base station transmits a high speed downlink shared channel (HS-DSCH) in a mobile communication system. In the method for transmitting information, in order to control power of the HS-DSCH indicator field of the dedicated physical control channel associated with the HS-DSCH, a new parameter is added for information on the HS-DSCH indicator power offset value in the control plane. It is characterized by using one type of control message.

Preferably, the control message is characterized in that the HS-DSCH indicator power offset value in the NBAP or RNSAP message for the HS-DSCH power control during soft handover of the associated DPCCH.

Another feature of the present invention is a control for a high speed downlink shared channel when a dedicated physical control channel (DPCCH) is in soft handover state and only one base station transmits a high speed downlink shared channel (HS-DSCH) in a mobile communication system. A method of transmitting information, the HS-DSCH indicator power offset values for primary and non-primary cells in the user plane for power control of the HS-DSCH indicator field of a dedicated physical control channel associated with the HS-DSCH. It is characterized by using a control frame in the form of adding a new field for putting information about.

Preferably, when the cell sending the HS-DSCH is a non-primary cell, the same power offset as the HS-DSCH indicator power offset used in other cells is used.

The control information transmission method for the high speed downlink shared channel in the mobile communication system according to the present invention configured as described above will be described with reference to the accompanying drawings.

General communication protocols are divided into a control plane as shown in FIG. 8 and a user plane protocol as shown in FIG. 9. 8 is a diagram illustrating a UMTS Radio Network control plane protocol, and FIG. 9 is a diagram showing a UMTS Radio Network user plane protocol. This is because it is common to transmit control signaling for control purposes and actual end-user data in a system-wide manner.

As control plane protocols used in the wireless network among the UMTS protocols, as shown in FIG. 8, a Radio Resource Control (RRC), a Radio Access Network Application Part (RANAP), and a RNSAP (Radio) are shown. Network Subsystem Application Part (NBAP) and Node B Application Part (NBAP).

Interfaces in which respective protocols are used are shown in FIGS. 8 and 9.

8 and 9, the protocol used between the UE and the base station control station (RNC) is an RRC protocol, and the protocol used for the Iub interface between the base station Node B and the base station control station (RNC) is NBAP; The protocol used for the Iur interface between the base station control station and the base station control station is RNSAP, Mobile Services Switching Center (MSC) / Visitor Location Register (MSL) or Serving GPRS Support Node (SGN) of the base station control station and Core Network (CN). The protocol used for the Iu interface between the two is RANAP. These Radio Network control plane protocols exist under client-server principle environment. That is, in the Iu interface, the UTRAN serves as a radio access server and the core network (CN) serves as a client requesting an access service from the UTRAN.

Similarly, in the Iub interface, the base station acts as a server, the control station (RNC) acts as a client, and in the Iur interface, the destination control station (DRNC: Drift RNC) acts as a server and the serving control station (SRNC) acts as a remote base station. It acts as a client to request control services for the servers.

These NBAP, RNSAP, and RANAP messages contain various information about resources for the radio access bearer that spans all intervals between the base station and the base station control station, the base station control station and the base station control station, and between the core network and the base station control station. Control messages are included.

Here, when sent to the user plane is delivered in the form of a control frame, when sent to the control plane NBAP (3GPP control plane protocol used for the interface between the base station and the base station control station) or RNSAP ( Message is transmitted in the form of a control plane protocol message written to an interface between the base station control station and the base station control station.

Power control for the HS-DSCH indicator (HI) field when a soft handover of a dedicated physical control channel (DPCCH) associated with the HS-DSCH occurs in an air interface parameter update control frame sent from this user plane or control plane. In order to perform the present invention, a method similar to the following embodiment is presented as a new control frame.

First embodiment;

Soft handover of an associated DPCCH associated with a radio interface parameter update (RADIO INTERFACE PARAMTER UPDATE) control frame as shown in FIG. 7 for power control of the HS-DSCH indicator (HI) field in the user plane. In soft handover, a field for the HS-DSCH indicator power offset (HI PO) value shown in FIG. 10 is added. That is, a control frame in which a field for the HS-DSCH power offset value for power control of the HS-DSCH indicator is added to the air interface parameter update control frame as shown in FIG. 7 is used.

As an example, referring to FIG. 10, the air interface parameter update control frame consists of 2 bytes of an air interface parameter update flag field indicating presence or absence of a parameter, and then a connection control frame field of 1 byte. Next, a TPC power offset (TPC TO) and a DPC mode are inserted, and a spare bit information field is inserted into the rest of the byte, and composed of one byte, and the associated HS-DSCH indicator power offset field includes at least seven bits of one byte. Configure. This associated HS-DSCH indicator power offset field is variable and consists of a format that includes one bit of spare bits if the associated HS-DSCH indicator power offset field is 7 bits. The total payload consists of more than 5 bytes.

The air interface parameter up data control frame applied to this first embodiment performs HS-DSCH indicator power control during soft handover of an associated dedicated physical control channel for power control of the HS-DSCH indicator field in the user plane. By adding a field for inputting an offset value (HI PO) for this purpose, power control of the high-speed downlink shared channel is performed through this.

Second embodiment;

In the user plane, a control frame as shown in FIG. 11 is used for power control of the HS-DSCH indicator (HI) field. The control frame as shown in FIG. 11 uses a field filled with an HS-DSCH power offset value (HI-PO) for HS-DSCH indicator power control during soft handover of an associated dedicated physical control channel (DPCCH). It is intended to perform power control of a high speed downlink shared channel.

As an example, referring to FIG. 11, a concatenated frame number field is configured by 1 byte, and such concatenated frame number field may or may not be included. Next, a field (HI PO) for inserting a power offset value for the HS-DSCH indicator field composed of at least 7 bits or more is inserted, and the other 1 bit is made up of 1 byte as a spare bit. Insert an extension field. In this case, the length of the field into which the power offset value for the HS-DSCH indicator field is input is variable.

The control frame shown in FIG. 11 inserts an HS-DSCH indicator power offset value for HS-DSCH indicator power control during soft handover of the associated DPCCH, thereby controlling power for the HS-DSCH indicator during soft handover of the associated DPCCH. Send information.

Third embodiment;

HS-DSCH indicator field in the control plane HS-DSCH indicator field during soft handover of the associated DPCCH in the NBAP message, which is the interface protocol between the base station and the base station control station, or the RNSAP message, which is the interface protocol between the base station control station and the base station control station, for power control. Enter the power offset (HI-PO) value for (HI).

That is, in the case of soft handover of the DPCCH associated with the HS-DSCH, control of a form in which information about the HS-DSCH power offset value is added in a new parameter form in the control plane for power control of the HS-DSCH indicator field The message is used to inform the interface between the base station and the base station control station or the base station control station.

Fourth embodiment;

HS-in primary cell when uplink signaling of SSDT is used during soft handover of DPCCH associated with the air interface parameter update control frame for power control for the HS-DSCH indicator field in the user plane. A control frame is used in which a power offset value for the DSCH indicator field HI and a power offset value field for the HS-DSCH indicator field HI in a non-primary cell are added. . In this embodiment, the format of the air interface parameter update control frame is the same as FIG. 12 or FIG. 13.

Referring to FIG. 12, the format of the air interface parameter update control frame includes: a 2-byte air interface parameter update flag field indicating presence or absence of a parameter; and a configurable 1-byte connection frame number field; HS-DSCH indicator field power offset value for power control for the HS-DSCH indicator field of the associated DPCCH of at least 7 bits of 1 byte, comprising an information field of a TPC power offset (TPC PO) and a DPC mode. An information field (HI PO_primary) of a power offset value for a field (HI PO) including a field and an HI field applied to a dedicated physical control channel (DPCCH) belonging to a primary cell during soft handover of at least 7 bits or more associated DPCCHs. ), And a spare extension field. The total payload consists of 6 bytes or more. Here, the connection frame number (CFN) field may or may not be included. In this case, the length of the field into which the power offset value for the HS-DSCH indicator field HI used in the primary cell is variable is variable. Since the control frame includes the above header information, the total payload is 6 bytes or more.

In the control frame as shown in FIG. 12, when the cell sending the HS-DSCH indicator is a primary cell, a power offset (HI-PO_primary) different from the HS-DSCH indicator (HI) power offset used in another cell is used.

Referring to FIG. 13, the air interface parameter update control frame includes a 2-byte air interface parameter update flag field, a 1-byte connection frame number (CFN) field, a 1-byte TPC power offset (TPC PO), and Field configured in DPC mode, field containing HS-DSCH indicator power offset value applied to DPCCHs transmitting the HS-DSCH indicator in soft handover of at least 7 bits of associated dedicated physical control channel (DPCCH) of 1 byte ( HI PO), a field of the HS-DSCH indicator power offset value (HI PO_primary) applied to the DPCCH belonging to the primary cell among the DPCCHs that transmit the HS-DSCH indicator value upon soft handover of the associated DPCCH, and the associated DPCCH. HS-DSCH indicator power offset applied to the DPCCH belonging to the non-primary cell among the DPCCHs transmitting the HS-DSCH indicator during soft handover It consists of a format containing a value (HI PO_non_primary) field and the remaining spare extension fields. Here, the power offset value field of the HS-DSCH indicator field used in the primary cell and the HS-DSCH indicator field used in the non-primary cell are variable, and the connection frame number may or may not be included. It can also be. In addition, since the aforementioned header information is included, the total payload is 7 bytes or more.

The control frame as shown in FIG. 13 is a case where a power offset (HI PO_non_primary) different from the HS-DSCH power offset used by another base station is used even when the cell transmitting the HS-DSCH is a non-primary cell.

In FIG. 12 and FIG. 13, the HS-DSCH indicator power offset value used in the primary cell is a power offset to be applied when the cell transmitting the HSD-DSCH is a primary cell.

Fifth embodiment;

In the user plane, a newly created control frame is used for power control for the HS-DSCH field, which is the HS-DSCH indicator in the primary cell during soft handover of the associated dedicated physical control channel (DPCCH) within the new control frame. Enter the (HI) power offset value and the HS-DSCH indicator (HI) power offset value in the non-primary cell.

The shape of such a control frame is the same as FIG. 14 or FIG. 15.

FIG. 14 illustrates a case where a power offset (HI PO) that is the same as the HS-DSCH indicator power offset used in another cell is used when the cell sending the HS-DSCH is not the primary cell.

The control frame of FIG. 14 is a field including a 1-byte concatenated frame number field (CFN), a power offset for at least 7 bits of the HS-DSCH indicator field (HI PO), and an HS-DSCH indicator used in the primary cell. It consists of a power offset field (HI PO_primary) and a spare extension field for the field, and the total payload is composed of 3 bytes or more. Here, the connection frame number field may or may not be included, and a flag field indicating whether a parameter exists may be added.

FIG. 15 illustrates a case in which a power offset (HI PO_non_primary) different from the HS-DSCH indicator power offset used in another cell is used even when the cell which sends the HS-DSCH is a non-primary cell.

The control frame of FIG. 15 is an HS-DSCH used in a primary cell including a concatenated frame number of 1 byte, a field in which a power offset value (HI PO) is inserted into an HS-DSCH indicator field of at least 7 bits, and at least 7 bits. A field containing a power offset value for the indicator field (HI PO_primary), a field containing a power offset value for the HS-DSCH indicator field used in a non-primary cell of at least 7 bits (HI PO_non_primary), and a spare extension field. The total payload consists of 4 bytes or more. Here, the connection frame number may or may not be included and a flag field indicating whether a parameter exists may be added.

Sixth embodiment;

During soft handover of the Dedicated Physical Control Channel (DPCCH) associated in the NBAP, which is the interface protocol between the base station and the base station control station, or in the RNSAP message, which is the interface protocol between the base station control station and the base station control station, for the HS-DSCH indicator power control in the control plane. The HS-DSCH indicator power offset value in the primary cell and the HS-DSCH power offset value in the non-primary base station are indicated.

The control frame or control message defined in these embodiments is used to perform power control of the HS-DSCH indicator field when a soft handover of a dedicated physical control channel associated with the HS-DSCH occurs. It is used between the control station and the base station control station, and transmits the HS-DSCH control information in the form of a control frame in the user plane, or in the form of NBAP message or RNSAP message in the control plane.

As described above, according to the method for transmitting control information for the high speed downlink shared channel in the mobile communication system according to the present invention, in the UMTS air interface protocol, when a soft handover of a dedicated physical control channel associated with the HS-DSCH occurs A message or procedure for notifying information required for power control of the HS-DSCH indicator field between a base station Node B and a base station control station and between a base station control station and a base station control station. By defining the control message or frame used in the existing DSCH alone, it is possible to support that the information contained in the new physical channels in the HS-DSCH cannot be supported, thereby ensuring the high performance of the HS-DSCH. There is.

In addition, a message or frame format in the control plane or the user plane for conveying information for power control on the HS-DSCH indicator field upon soft handover of a dedicated physical control channel associated with the HS-DSCH and the procedure accordingly, respectively. Defining a enables the 3GPP asynchronous system and the terminal to perform power control on the HS-DSCH indicator field for the HS-DSCH.

And, using the control message or frame type and procedure proposed in the present invention, the HS-DSCH or the change of the number of radio links transmitting the mobile station or the HS-DSCH indicator as well as the initial setup of the radio link. According to whether the cell transmitting the indicator is a primary cell or a non-primary cell, the HS-DSCH indicator power offset value can be set appropriately to inform this information.

Claims (12)

A method of transmitting control information for a high speed downlink shared channel when a dedicated physical control channel (DPCCH) is in a soft handover state and only one base station transmits a high speed downlink shared channel (HS-DSCH) in a mobile communication system. In Added a field containing information about the HS-DSCH indicator power offset value sent in the user plane for power control of the HS-DSCH indicator field of the dedicated physical dedicated channel associated with the high speed downlink shared channel (HS-DSCH). A control information transmission method for a high speed downlink shared channel in a mobile communication system, characterized by using one control frame. The method of claim 1, The control frame includes an air interface parameter update flag field indicating whether a parameter is present, a connection frame number (CFN) field, a TPC power offset and a DPC mode and spare bit information field, and an HS-DSCH indicator power offset field associated with at least 7 bits. Control information transmission method for a high speed downlink shared channel in a mobile communication system, characterized in that the format comprising a. The method of claim 1, The control frame comprises a connection frame number field, which is optionally included, and a field for inserting a power offset for an associated HS-DSCH indicator field of a predetermined bit or more, and the control information for the high speed downlink shared channel in the mobile communication system. Transmission method. The method of claim 1, The control frame is a high speed downlink shared channel in a mobile communication system having a configuration in which a new field is added to the information on the power offset value of the HS-DSCH indicator when a soft handover of the associated dedicated physical control channel occurs. Control information transmission method for. A method of transmitting control information for a high speed downlink shared channel when a dedicated physical control channel (DPCCH) is in a soft handover state and only one base station transmits a high speed downlink shared channel (HS-DSCH) in a mobile communication system. In For power control of the HS-DSCH indicator field of the dedicated physical control channel associated with the HS-DSCH, a control message using a form of adding a new parameter for information on the HS-DSCH indicator power offset value in the control plane is used. Control information transmission method for a high speed downlink shared channel in a mobile communication system. The method of claim 5, The control message is a control information for the high speed downlink shared channel in the mobile communication system, characterized in that the HS-DSCH indicator power offset value in the NBAP or RNSAP message for the HS-DSCH power control during soft handover of the associated DPCCH Transmission method. A method of transmitting control information for a high speed downlink shared channel when a dedicated physical control channel (DPCCH) is in a soft handover state and only one base station transmits a high speed downlink shared channel (HS-DSCH) in a mobile communication system. In HS-DSCH indicator power offset value for the base station belonging to the primary cell and the base station belonging to the non-primary cell in the user plane for power control of the HS-DSCH indicator field of the dedicated physical control channel associated with the HS-DSCH A control information transmission method for a high speed downlink shared channel in a mobile communication system, characterized by using a control frame having a form of adding a new field for putting information on the information. The method of claim 7, wherein In the case where the cell sending the HS-DSCH is a base station belonging to a non-primary cell, a high speed downlink shared channel is used in the mobile communication system, which uses the same power offset as the HS-DSCH indicator power offset used by another base station. Control information transmission method for. The method of claim 7, wherein The control frame includes an air interface parameter update flag field indicating the presence or absence of a parameter, an optionally configurable connection frame number field, an information field of a TPC power offset and a DPC mode, and an HS- of at least 7 bits of associated DPCCH. HS-DSCH indicator field for power control for the DSCH indicator field A field containing a power offset value, the information field of the HS-DSCH power offset value applied to the DPCCH belonging to the primary cell at the soft handover of the associated DPCCH Control information transmission method for a high speed downlink shared channel in a mobile communication system. The method of claim 7, wherein The control frame is applied to DPCCHs that transmit an HS-DSCH indicator upon soft handover of an associated DPCCH of at least 7 bits or more, an air interface parameter update flag field, a connection frame field, a TPC power offset and an information field of a DPC mode. A field containing a DSCH indicator power offset value, and an information field of an HS-DSCH indicator power offset value applied to a DPCCH belonging to a primary cell among DPCCHs transmitting an HS-DSCH indicator value during soft handover of an associated DPCCH. And a format of an information field of an HS-DSCH indicator power offset value applied to a DPCCH belonging to a non-primary cell among the DPCCHs transmitting the HS-DSCH supporter during soft handover of the associated DPCCH. Control information transmission method for a high speed downlink shared channel in a system. The method of claim 7, wherein The control frame may include an optionally configured concatenated frame number field, a field containing an HS-DSCH indicator power offset value applied to DPCCHs that transmit an HS-DSCH indicator upon soft handover of at least 7 bits or more of the associated DPCCH, and associated DPCCH. High-speed downlink sharing in a mobile communication system comprising an information field format of the power offset value of the HS-DSCH indicator applied to the DPCCH belonging to the primary cell among the DPCCHs transmitting the HS-DSCH indicator value during soft handover Method of transmitting control information about a channel. The method of claim 7, wherein The control frame includes a concatenated frame number field optionally included, a field containing an HS-DSCH indicator power offset value applied to DPCCHs transmitting an HS-DSCH indicator upon soft handover of at least 7 bits of the associated DPCCH; Information field of the HS-DSCH indicator power offset value applied to the DPCCH belonging to the primary cell among the DPCCHs transmitting the HS-DSCH indicator value upon soft handover of the associated DPCCH, and the HS-DSCH at soft handover of the associated DPCCH. Among the DPCCHs transmitting the indicator, the information field of the HS-DSCH indicator power offset value applied to a DPCCH belonging to a base station belonging to a non-primary cell is formatted. Control information transmission method.