KR100811044B1 - Control Information Transmission Method for High Speed Downlink Shared Channel in Mobile Communication System - Google Patents

Abstract

The present invention relates to transmission of control information for control of shared control channel power of a high speed downlink shared channel in a mobile communication system.

The present invention provides a control information transmission method for power control for a shared control channel associated with the HS-DSCH, and in order to control power for a shared control channel used in the HS-DSCH, a power offset for a shared control channel in a user plane It is characterized by using a control frame in which a predefined field is added to inform the information of the value.

According to the present invention, a control plane for transmitting information for power control on the shared control channel when the environment or situation of the radio link changes, such as when a soft handover of the DPCCH associated with the HS-DSCH occurs, or By defining a message or frame format in the user plane and a procedure according to each, it is possible to perform power control on a shared control channel for HS-DSCH in a 3GPP asynchronous system and a terminal.

Description

Control information transmission method for high speed downlink shared channel in mobile communication system {METHOD FOR TRANSPORTING CONTROL INFORMATION TO HIGH SPEED DSCH 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 shareable user of the downlink 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.

FIG. 10 is a format configuration diagram of an air interface parameter update control frame for power control of a shared control channel used in an HS-DSCH according to a first embodiment of the present invention. FIG.                 

FIG. 11 is a diagram illustrating the format of a new control frame for power control of a shared control channel used in the HS-DSCH according to the embodiment of FIG. 2 of the present invention.

12 is a diagram illustrating a format configuration of an air interface parameter update control frame for power control of a shared control channel used in an HS-DSCH according to a third embodiment of the present invention.

FIG. 13 is a diagram illustrating a format configuration of an air interface parameter update control frame for power control of a shared control channel used in an HS-DSCH according to an embodiment of the present invention. FIG.

14 is a view illustrating a format configuration of a new control frame for power control of a shared control channel used in an HS-DSCH according to a fifth embodiment of the present invention.

FIG. 15 is a diagram illustrating the format of a new control frame for power control of a shared control channel used in the HS-DSCH according to the embodiment of FIG.

The present invention relates to a control frame for power control of a shared control channel of a high-speed downlink shared channel (hereinafter, referred to as HS-DSCH) in a mobile communication system, and in particular, a shared control for an HS-DSCH. The present invention relates to a method for transmitting control information for a high speed downlink shared channel in a mobile communication system that presents a new control message or frame for updating power information of a channel.                         

In addition, the power control information of the HS-DSCH indicator field carried in a control message or a control frame for updating the power information may be used in a wireless link environment such as when a soft handover of a dedicated physical control channel (DPCCH) associated with the HS-DSCH occurs. This information can be used at the time of change, and this information is conveyed through the above control message or control 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 transmission of the control message, two cases of sending to the user plane and 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 different cells. 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. 3 is a diagram illustrating a configuration of a downlink shared channel (DSCH). In FIG. 3, the downlink shared channel (DSCH) is composed of a radio frame of 10 ms, and can be shared and used by different users in every frame. This would be possible by multiple users being assigned one node per frame from the channelization code for the downlink shared channel (DSCH).

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

Referring to FIG. 2, 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). The dedicated channel DCH may carry N _data1 bits of data Data1 on the first physical data channel in order from the left, and TPC (N _TPC bits) and TFCI (N _TFCI bits) 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, multiple users can be supported at the same time, and control information for this uses a shared control channel allocated 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-bit connection frame number (CFN), 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 Shared Channel) for high-speed packet service are defined, but the base station and the base station control for the HS-DSCH There is no definition for higher layer control messages or frames between the station, 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. -primary 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 cannot support the power control method for the newly proposed shared control channel. have.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. The present invention provides a fast downlink in a mobile communication system that provides a control message and a control frame capable of power control in accordance with the characteristics of a high speed downlink shared channel (HS-DSCH). It is an object of the present invention to provide a control information transmission method for a link sharing channel.

Another object of the present invention is to provide a method of transmitting control information for a high speed downlink shared channel in a mobile communication system that can be used between a base station and a base station control station, and between a base station control station and a base station control station.

In addition, high-speed down in the mobile communication system considering two cases of sending HS-DSCH control information in the form of a control frame to the user plane and in the form of NBAP or RNSAP messages to the control plane. It is an object of the present invention to provide a control information transmission method for a link sharing channel.

In addition, a high-speed downlink in a mobile communication system capable of performing power control on a shared control channel when the environment or situation of a wireless link changes, such as when a soft handover of a dedicated physical control channel associated with the HS-DSCH occurs. Its purpose is to provide a control information transmission method for a shared channel.

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,

In the control information transmission method for power control for the shared control channel associated with the HS-DSCH, for power control for the shared control channel used in the HS-DSCH, the power offset value for the shared control channel in the user plane It is characterized by using a control frame in which a predefined field is added to inform the information.

Preferably, the control frame is a radio interface parameter update flag field indicating the presence or absence of parameters when the environment or situation of the radio link changes, such as when a soft handover of a dedicated physical control channel associated with the HS-DSCH occurs. And a concatenation frame number (CFN) field, a TPC power offset and a DPC mode and spare bit information field, and a power offset field for a shared control channel used in the HS-DSCH with at least 7 bits.

Preferably, the control frame is composed of a concatenated frame number field optionally included and a power offset field for a shared control channel used in the HS-DSCH with at least 7 bits or more.

Another aspect of the present invention, in the control information transmission method for power control for the shared control channel used in the HS-DSCH,

In order to control power for the shared control channel used in the HS-DSCH, a control message including a parameter for information on the power offset value for the shared control channel in the control plane is used.

Here, the control message is characterized in that the power control parameter for the shared control channel used for the HS-DSCH is inserted into the NBAP or RNSAP message.

According to another aspect of the present invention, in a method of transmitting control information for power control for a shared control channel used in the HS-DSCH, a primary plane is used in the user plane for power control for the shared control channel used in the HS-DSCH. It is characterized by using a control frame in the form of adding a predefined field for inserting information about the power offset value for the shared control channel for the cell and non-primary cells.

Preferably, the control frame is 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 at least 7 bits or more And a field (HS-SCCH PO_primary) for inserting a power offset for the shared control channel used in the head cell.

Preferably, the control frame is an air interface parameter update flag field, a connection frame number field, a field (HS-SCCH PO) having at least 7 bits and carrying a power offset value for a shared control channel, and a shared control channel used for the primary cell. And a field including a power offset value for the shared control channel used in the non-primary cell (HS-SCCH PO_primary) and a field including a power offset for the shared control channel used in the non-primary cell.

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 these devices.

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;

In order to control power on a shared control channel in the user plane, a conventional radio interface parameter update (RADIO INTERFACE PARAMETER UPDATE) control frame includes a soft handover (associated DPCCH) associated with a HS-DSCH. As in the case of a soft handover, a field (HS-SCCH PO) for transmitting a power offset value of a shared control channel (SCCH) as shown in FIG. 10 is added when the environment or situation of a wireless link is changed. give. That is, a control frame including a field for the HS-SCCH power offset value is used when a wireless environment or a channel environment is changed to transmit control information of the HS-DSCH to the air interface parameter update control frame as shown in FIG. 7. .

As an example, referring to FIG. 10, the air interface parameter update control frame includes 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 to constitute 1 byte, and at least 7 bits of the 1 byte are used for the power offset field (for the shared control channel). HS-SCCH PO). The HS-SCCH power offset field is variable, and if the HS-SCCH power offset field is 7 bits, the HS-SCCH power offset field has a format including a spare bit of 1 bit. The total payload consists of more than 5 bytes.

The air interface parameter up data control frame applied to this first embodiment is notified when a change in the environment or situation of the radio link occurs in case of a soft handover of a dedicated physical control channel associated with the HS-DSCH in the user plane. In order to provide information through the HS-SCCH power offset field, it is intended to perform power control of the high speed downlink shared channel.

Second embodiment;                     

In the user plane, a control frame as shown in FIG. 11 is used for power control for a shared control channel (SCCH). The control frame as shown in FIG. 11 transmits a power offset value for power control of the shared control channel when the environment or situation of the radio link changes, such as during soft handover of a dedicated physical control channel (DPCCH) associated with the HS-DSCH. By using the field (HS-SCCH PO), the power control of the high speed shared control channel is performed even when the radio link environment is changed.

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, insert a field (HS-SCCH PO) for inputting a power offset value for a shared control channel composed of at least 7 bits or more, and configure the other bits as 1 byte as spare bits, and at the end of the control frame, spare Insert an extension field. At this time, the length of the field into which the power offset value for the field into which the HS-SCCH power offset value is inserted is variable. The entire payload consists of more than two bytes.

In the control frame shown in FIG. 11, a soft handover of the associated DPCCH is added to the HS-DSCH by adding a field in which the HS-SCCH power offset value for power control of the shared control channel applied when the environment or situation of the radio link is changed. When the environment or situation of a radio link such as a city changes, power control of the HS-DSCH is performed through the HS-SCCH power offset field.

Third embodiment;

Add a power offset parameter for the shared control channel in the NBAP message, which is an interface protocol between the base station and the base station control station, or an RNSAP message, which is an interface protocol between the base station control station and the base station control station, for power control of the shared control channel in the control plane, In fact, these parameters are informed to the control frame of the user plane at the time when they are applied.

That is, when the environment or situation of the radio link changes, such as when a soft handover of the DPCCH associated with the HS-DSCH occurs, a power offset to be applied to the shared control channel is inserted into the NBAP message or the RNSAP message. These values apply when a HS-DSCH Indicator (HI) power control frame is received. That is, when a soft handover occurs and a control frame for the HS-DSCH indicator (HI) power control is transmitted, the power offset of the shared control channel used in the handover previously received through the NBAP or RNSAP message is applied. . After the soft handover, the control frame for the HS-DSCH indicator (HI) power control is transmitted to return to the original power offset, and is used when the handover has not been previously received through the NBAP or RNSAP message. Apply the shared control channel power offset.

In such a non-handover case, the power offset used in the case of the non-handover and the shared control channel when the environment or the situation of the radio link change, such as the soft handover of the dedicated physical control channel associated with the HS-DSCH occurs. By transmitting the power offset for the NBAP message or the RNSAP message, it is possible to perform power control for the HS-DSCH in the control plane.

Fourth embodiment;                     

When the radio link environment or situation changes, such as when a soft handover of the DPCCH associated with the HS-DSCH occurs in an air interface parameter update control frame for power control on a shared control channel in the user plane, a primary cell ( Control in the form of adding the shared control channel power offset value in the primary cell and the fields (HS-SCCH PO_primary, HS-SCCH_non_primary) for the shared control channel power offset value in the non-primary cell. Use frames 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; A field for configuring a TPC power offset (TPC PO) and an information field of a DPC mode with one byte, and including a power offset value for a shared control channel of at least 7 bits of one byte (HS-SCCH PO), and at least 7 bits The above is composed of a field for inputting a power offset for the shared control channel used in the primary cell (HS-SCCH PO_primary) 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. Here, the length of the HS-SCCH power offset field used in the primary cell is variable. Since the control frame includes the above header information, the total payload is 6 bytes or more.                     

The control frame shown in FIG. 12 uses the same power offset (HS-SCCH PO) for the shared control channel when the base station sending the shared control channel is not a handover and is a non-primary cell.

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 at least 7 bits of 1 byte and containing power offset value for shared control channel (HS-SCCH PO), and field containing power offset value for shared control channel used for primary cell (HS) -SCCH PO_primary), a field containing a power offset for the shared control channel used by the non-primary base station (HS-SCCH PO_non_primary), and the remaining spare extension field. Here, the length of the HS-SCCH power offset field used in the primary cell and the HS-SCCH power offset field used in the non-primary cell is variable, and the connection frame number may or may not be included. In addition, since the aforementioned header information is included, the total payload is 7 bytes or more.

The control frame shown in FIG. 13 is a power offset for a unique control channel (HS-SCCH PO) different from a power control offset for a unique control channel (HS-SCCH PO) used when the base station sending a shared control channel is not a handover. PO_non_primary) is used.

12 and 13, the power offset field used by the primary base station is a power offset to be applied when the base station sending the shared control channel is the primary base station.

Fifth embodiment;

In the user plane, a newly created control frame is used for power control for a shared control channel, in which the environment or situation of the radio link is used, such as soft handover of a dedicated physical control channel (DPCCH) associated with the HS-DSCH. When this change is made, a parameter is passed to convey the HS-SCCH power offset value at the primary base station and the HS-SCCH power offset value at the non-primary base station.

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

FIG. 14 shows the case where the same power offset (HS-SCCH PO) is used for the shared control channel in both cases when not in soft handover and when the base station sending the shared control channel is a non-primary base station.

The control frame of FIG. 14 includes a link frame number field (CFN) of 1 byte, a field for inputting a power offset for a shared control channel of at least 7 bits (HS-SCCH PO), and a shared control channel used in a primary cell. A power offset field (HS-SCCH PO_primary) and a spare extension 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 uses a different power offset (HS-SCCH PO_non_primary) and a different power offset (HS-SCCH PO) for a shared control channel used when the base station sending a shared control channel is a non-primary cell. This is the case.                     

The control frame of FIG. 15 is a field including a concatenated frame number of 1 byte, a power offset value (HI PO) for at least 7 bits or more of a shared control channel, and a shared control channel used in a primary cell composed of at least 7 bits or more. Field that contains the power offset value for the shared control channel (HS-SCCH PO_primary) used by the non-primary base station with at least 7 bits (HS-SCCH PO_primary), and the 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;

For power control of the shared control channel in the control plane, the base station or primary cell in which the shared control channel is transmitted in an NBAP, which is an interface protocol between the base station and the base station control station, or an RNSAP message, which is an interface protocol between the base station and the base station control station Considering the case of the cell rather than the head, it is a method of adding the power offset parameters for the shared control channel and informing the control frame of the user plane when the parameters are actually applied.

That is, the shared control channel power offset value and primary used for the primary cell when the environment or situation of the radio link changes, such as when a soft handover of the DPCCH associated with the HS-DSCH occurs. In the NBAP or RNSAP message, the power offset value of the shared control channel used in the non-primary cell and the power offset value (HS-SCCH PO) for the shared control channel used in the case of non-soft handover are sent. These values apply when a HS-DSCH indicator (HI) power control frame is received. That is, when soft handover occurs and a control frame for HS-DSCH indicator (HI) power control is transmitted, shared control to be used in a primary cell or a non-primary cell during handover received through an NBAP or RNSAP message. Apply the power offset of the channel. The sharing used when the control frame for the HS-DSCH indicator (HI) power control is transmitted to return to the original power offset after the soft handover is completed, and not the handover previously received through the NBAP or RNSAP message. Apply the power offset of the control channel.

In both cases of non-soft handover and nonprimary cells sending shared control channels, nonprimary cells in control messages when using the same power offset (HS-SCCH PO) for the shared control channel. The power offset of the shared control channel to be used in the non-primary cell may not be used.

The control messages or control frames presented in these embodiments are used between the base station and the base station control station, between the base station control station and the base station control station, and send HS-DSCH control information through the control frame to the user plane, or NBAP or RNSAP to the control plane. It is delivered in the form of a message.

These control frames and control messages perform power control on the shared control channel when the environment or situation of the radio link changes, such as when a soft handover of a dedicated physical control channel (CPCCH) associated with the HS-DSCH occurs.

 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, the shared control channel when the soft handover of the DPCCH associated with the HS-DSCH occurs in the UMTS radio interface protocol. A message or a procedure for informing information necessary for power control of the BS between the base station Node B and the base station control station RNC and between the base station control station and the base station control station is also proposed. Message or frame formats and control procedures in the control plane or user plane for conveying information for power control on the shared control channel when the environment or situation of the wireless link changes, such as when a soft handover occurs. Definition for shared control channels for HS-DSCH in 3GPP asynchronous systems and terminals. It allows you to perform power control.

In addition, the present invention uses the above control message or frame type and procedure, the base station is not only when the radio link is initially set up, but also when the base station transmitting the shared control channel according to the movement of the mobile station or the change in the number of radio links, or Depending on whether the cell is a cell or a primary cell, the power offset value can be set appropriately for each situation to inform this information, thereby improving the performance of the HS-DSCH.

Claims (53)

delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete Providing a power offset (PO) value to a network node supporting high-speed downlink packet access, The PO value is for a first high speed shared channel associated with a second high speed shared channel, and the providing step is performed through a radio access interface protocol. The first high speed shared channel is a control channel (HS-SCCH), the second high speed shared channel is a data channel (HS-DSCH), and the first high speed shared channel is a control channel for the second high speed shared channel. Control information processing method of a mobile communication system, characterized in that. The method of claim 19, wherein the providing step The control information processing method of a mobile communication system, characterized in that carried out by a control radio network controller (CRNC), wherein the network node is a base station. The method of claim 19, wherein the providing step The control information processing method of a mobile communication system, characterized in that performed by a Serving Radio Network Controller (SRNC), wherein the network node is a Drift radio network controller (DRNC). 20. The system of claim 19, wherein the wireless access interface protocol is Control information processing method of a mobile communication system, characterized in that the Iub interface protocol. 20. The method of claim 19, wherein the transmission power of the HS-SCCH The control information processing method of a mobile communication system, characterized in that determined by the power offset value of the dedicated physical control channel (DPCCH). 20. The method of claim 19, wherein the power offset value is The control information processing method of a mobile communication system, characterized in that provided as a message if the radio access interface protocol is a control plane protocol. 20. The system of claim 19, wherein the wireless access interface protocol is Control information processing method of a mobile communication system, characterized in that the Iur interface protocol. 20. The method of claim 19, wherein the power offset value is And if the radio access interface protocol is a user plane protocol, providing control frames. The method of claim 26, wherein the control frame An air interface parameter update flag field indicating whether a parameter exists; And a PO field used to transmit a PO value for power control of the HS-SCCH. The method of claim 27, wherein the control frame The control information processing method of a mobile communication system, further comprising a CFN field. The method of claim 27, wherein the PO field is A control information processing method of a mobile communication system, characterized in that it is used to transmit a PO value for non-handover or soft handover of DPCCH. The method of claim 26, wherein the control frame A connection frame number (CFN) field optionally included; And a PO field used to transmit a PO value for non-handover or soft handover of the DPCCH. The method of claim 26, wherein the control frame An air interface parameter update flag field indicating whether a parameter exists; A PO field used to convey a PO value for power control of the HS-SCCH; A connection frame number (CFN) field; A transmit power control (TFC) power offset (PO) field; A downlink power control (DPC) mode information field; A first PO field used to transmit a PO value for soft handover of the DPCCH; And a second PO field used to transmit the PO value for the HS-SCCH used for the primary cell. The method of claim 26, wherein the control frame A connection frame number (CFN) field optionally included; A first PO field used to transmit a PO value for soft handover of the DPCCH; And a second PO field used to transmit the PO value for the HS-SCCH used for the primary cell. The method of claim 26, wherein the control frame An air interface parameter update flag field indicating whether a parameter exists; A connection frame number (CFN) field; A transmit power control (TFC) power offset (PO) field; A downlink power control (DPC) mode information field; A second PO field used to transmit the PO value for the HS-SCCH used for the primary cell; And a third PO field used to transmit the PO value of the HS-SCCH used for the non-primary cell. The method of claim 26, wherein the control frame A connection frame number (CFN) field optionally included; A first PO field used to transmit a PO value for soft handover of the DPCCH; A second PO field used to transmit the PO value for the HS-SCCH used for the primary cell; And a third PO field used to transmit the PO value of the HS-SCCH used for the non-primary cell. Receiving a power offset (PO) value from a wireless network controller supporting high-speed downlink packet access, The PO value is for a first high speed shared channel related to a second high speed shared channel, and the receiving step is performed through a radio access interface protocol. The first high speed shared channel is a control channel (HS-SCCH), the second high speed shared channel is a data channel (HS-DSCH), and the first high speed shared channel is a control channel for the second high speed shared channel. Control information processing method of a mobile communication system, characterized in that. 36. The method of claim 35, further comprising determining the transmission power of the first high speed shared channel using the received power offset value. The method of claim 35, wherein the receiving step The control information processing method of a mobile communication system, characterized in that carried out by a base station, wherein the radio network control station is a control radio network controller (CRNC). The method of claim 35, wherein the receiving step The control information processing method of a mobile communication system, which is performed by a DRNC (Drift radio network controller), wherein the radio network control station is a serving radio network controller (SRNC). 36. The wireless access interface protocol of claim 35, wherein Control information processing method of a mobile communication system, characterized in that the Iub interface protocol. 36. The method of claim 35, wherein the transmission power of the HS-SCCH The control information processing method of a mobile communication system, characterized in that determined by the power offset value of the dedicated physical control channel (DPCCH). 36. The method of claim 35, wherein the power offset value is The control information processing method of a mobile communication system, characterized in that provided as a message if the radio access interface protocol is a control plane protocol. 36. The wireless access interface protocol of claim 35, wherein Control information processing method of a mobile communication system, characterized in that the Iur interface protocol. 36. The method of claim 35, wherein the power offset value is And if the radio access interface protocol is a user plane protocol, providing control frames. The method of claim 43, wherein the control frame An air interface parameter update flag field indicating whether a parameter exists; And a PO field used to transmit a PO value for power control of the HS-SCCH. The method of claim 43, wherein the control frame The control information processing method of a mobile communication system, further comprising a CFN field. 44. The method of claim 43, wherein the PO field used to convey the PO value for power control of the HS-SCCH is A control information processing method of a mobile communication system, characterized in that it is used to transmit a PO value for non-handover or soft handover of DPCCH. The method of claim 43, wherein the control frame A connection frame number (CFN) field optionally included; And a PO field used to transmit a PO value for non-handover or soft handover of the DPCCH. The method of claim 43, wherein the control frame An air interface parameter update flag field indicating whether a parameter exists; A connection frame number (CFN) field; A transmit power control (TFC) power offset (PO) field; A downlink power control (DPC) mode information field; A first PO field used to transmit a PO value for soft handover of the DPCCH; And a second PO field used to transmit the PO value for the HS-SCCH used for the primary cell. The method of claim 43, wherein the control frame A connection frame number (CFN) field optionally included; A first PO field used to transmit a PO value for soft handover of the DPCCH; And a second PO field used to transmit the PO value for the HS-SCCH used for the primary cell. The method of claim 43, wherein the control frame An air interface parameter update flag field indicating whether a parameter exists; A connection frame number (CFN) field; A transmit power control (TFC) power offset (PO) field; A downlink power control (DPC) mode information field; A first PO field used to transmit a PO value for soft handover of the DPCCH; A second PO field used to transmit the PO value for the HS-SCCH used for the primary cell; And a third PO field used to transmit the PO value of the HS-SCCH used for the non-primary cell. The method of claim 43, wherein the control frame A connection frame number (CFN) field optionally included; A first PO field used to transmit a PO value for soft handover of the DPCCH; A second PO field used to transmit the PO value for the HS-SCCH used for the primary cell; And a third PO field used to transmit the PO value of the HS-SCCH used for the non-primary cell. 42. The method of claim 41 wherein the message is A control information processing method of a mobile communication system, characterized in that the Node B application part (NBAP) message used between the CRNC and the base station or the Radio Access Network Application Part (RNSAP) message used between the SRNC and DRNC. 36. The method of claim 35, wherein the first high speed shared channel Control information processing method of a mobile communication system, characterized in that having a 2ms frame.

Images