TWI387361B - Base station (bs) to perform fast dynamic channel allocation (f-dca) call admission control (cac) - Google Patents

Description

Base station (BS) for implementing Fast Dynamic Channel Configuration (F-DCA) Call Admission Control (CAC)

The present invention relates generally to radio resource management in a wireless communication system, and more particularly to implementing a Fast Dynamic Channel Configuration (F-DCA) Radio Resource Management (RRM) procedure.

In wireless communication systems, radio resource management is typically responsible for using empty interfacing resources. Radio resource management is used to guarantee quality of service (QoS) to provide efficient use of radio resources and increase system capacity. Radio resource management includes control, switching, power control and congestion control functions. Allowable control can be divided into User Allowed Control and Call Admission Control (CAC). The user allows control to accept or reject the Radio Resource Control (RRC) connection required by the WTRU. The user allows control to accept or deny the establishment or modification of the radio access network (Radio Access Bearer (RAB) in the RAN. Call Admission Control (CAC) is placed in the Control Radio Network Controller (C-RNC).

It has two dynamic channel configuration (DCA) functions, slow dynamic channel configuration and fast dynamic channel configuration (S-DCA, F-DCA). The slow dynamic channel configuration configures wireless resources to cells, while the fast dynamic channel configuration configures wireless resources to bearer services. The Fast Dynamic Channel Configuration Call Admission Control (CAC) feature is responsible for effectively configuring or changing the configuration of physical resources. When the request for an entity resource is received, Call Admission Control (CAC) will accept or reject the request based on the availability and interference level of the entity resources in the cell. This requirement is accepted only when the connected and connected calls allow the control to acknowledge it. Otherwise, the request is rejected.

To ensure quality of service and minimize interference, specific Fast Dynamic Channel Configuration Call Admission Control (CAC) calculus is currently implemented. However, the Fast Dynamic Channel Configuration Call Admission Control (CAC) calculus has several limitations with previous implementations. One of the limitations is that the main interface is very functional and the input to the encoding configuration function (which forms the core function of the fast dynamic channel configuration call admission control (CAC) calculus) depends on the signal message, so it is difficult to be managed by other radio resources. Function reuse. The second limitation is that the past implementation of fast dynamic channel configuration call admission control (CAC) calculus is usually only available for immediate (RT) services.

The two fast dynamic channel configuration functions of the calculus type are performed by the radio resource management under steady state operation: one for background interference reduction and one for escape mechanism.

Fast Dynamic Channel Configuration The Background Interference Reduction procedure is used to maintain radio resource management and system resource usage at a reasonable level by reassigning radio resources (time slots and codes) to existing radio bearers. Fast Dynamic Channel Configuration Background Interference reduction procedures are periodically triggered by radio resource management. The period of the touch background interference reduction procedure is a design parameter; in the preferred embodiment of the invention, the period is two seconds. It has a fairly low priority in the fast dynamic channel configuration calculus.

The fast dynamic channel configuration escape mechanism is used to solve the user's link problem. It is treated as a specific user (or part of the user service) or a base station's escape mechanism that experiences high interference or cannot reassign wireless resources to an existing radio bearer to satisfy the quality of service. The fast dynamic channel configuration escape mechanism can operate in one cell for all wireless transmit/receive unit (WTRU) instant services in steady state. It is not applied to non-instant (NRT) services.

Only one fast dynamic channel configuration preferably operates in the control radio network controller at a given time because a functional output can affect the decision of another function. If these functions are more than one precise and simultaneously touched, the priority of these functions is that the escape program operates first, Call Admission Control (CAC) operates second, and the background interference reduction program ends.

A handover is used to translate a wireless link from one cell to another without interrupting the call to maintain the desired quality of service. The wireless link addition procedure is for the WTRU to have physical resources that are used to establish a new wireless link in Node B when communicating.

For Time Division Duplex (TDD) mode, the wireless link setup procedure is used to establish the wireless resources needed for new wireless links for immediate or non-instant service. After the wireless link is established, the wireless link reconfiguration procedure is used to attach, modify, or delete any physical resources of the existing wireless link. The Fast Dynamic Channel Configuration Call Admission Control (CAC) algorithm is used to receive the request message.

It is expected to provide an optimal implementation of fast dynamic channel configuration call admission control (CAC) calculus for both immediate and non-instant service, and which overcomes the shortcomings of known algorithms. It is also contemplated to provide improved escape mechanisms and background interference reduction procedures that meet the above requirements. It is further contemplated to provide an optimal implementation of fast dynamic channel configuration call admission control (CAC) calculus for wireless link attachment and wireless link reconfiguration, which is suitable for immediate or non-instant service, and which overcomes the shortcomings of known algorithms .

The present invention improves and optimizes the known fast dynamic channel configuration calculus by modulating/classifying fast dynamic channel configuration calculus functions and making input to the core channel configuration functions of these calculus independent of signal messages. More particularly, the signal-dependent fast dynamic channel configuration call admission control (CAC) calculus of a particular function in a previous implementation is changed to signal-independent by the present invention, making the changed function It can be reused in the implementation of the organization. The present invention is illustrated by layer 3 in the time division duplexing scheme, but can also be applied without being limited by other transmission modes.

The current development of the third generation of wireless telecommunications systems requires up-to-date and effective radio resource management. The present invention provides an optimal implementation of fast dynamic channel configuration calculus in wireless resource management. The inventive method can modulate and modify the fast dynamic channel configuration algorithm into three processes: pre-coding configuration, encoding configuration, and post-coding configuration. The functions in the pre-coding configuration processing and the post-coding configuration processing are signal dependent, and the functions in the configuration processing are independent. The pre-coded configuration process is used to explain how and where to retrieve information from input messages and databases, and how to prepare the input required for the code configuration process. The post-coding configuration process is used to determine what information should be stored in the database and what information should be provided to the output message. The modulated functionality of the present invention can be reused by other wireless resource management algorithms in both immediate and non-instant services.

The present invention provides a fast dynamic channel configuration call admission control (CAC) calculus implementation for a wireless link setup procedure in wireless resource management. The fast dynamic channel configuration call admission control (CAC) calculus method in the optimized wireless communication system includes pre-coding configuration processing, signal independent coding configuration processing, and post-coding configuration processing. The pre-coding configuration process includes receiving and processing request messages and obtaining system measurements and information from a centralized database. The code configuration process begins by examining the available codes in the cell and the time slot sequence that produces the available time slots. The code group is assigned to the available time slots in the time slot sequence, where the success assignment is a solution. The Interference Signal Coding Power (ISCP) is calculated for each solution, and the solution with the lowest weighted interference signal coding power is selected as the best solution. Post-coding configuration processing involves storing configuration information in a centralized repository and establishing a response message.

The Fast Dynamic Channel Configuration Call Admission Control (CAC) method for use in a wireless communication system begins by receiving and processing a request message to initiate a Call Admission Control (CAC) function. The Node B measurement, the available time slot table and the code group list are retrieved from the centralized database. A set of coding systems is configured into available time slots, and configuration information is stored in a centralized repository. The response message is transmitted by the encoding configuration processing result.

The present invention provides a method for implementing a fast dynamic channel configuration escaping mechanism in wireless resource management, which increases system efficiency by operating as follows. When one of the following three conditions is met, the fast dynamic channel configuration escape mechanism is activated by the radio resource management to specifically code up the composite transmission channel (CCTrCH) of the wireless transmit/receive unit (WTRU):

1) The downlink (DL) time slot interference signal coding power (ISCP) is greater than the threshold by wireless transmit/receive unit (WTRU) measurements.

2) By Node B measurement, the uplink (UL) time slot interference signal coding power (ISCP) is greater than the threshold value. These two threshold values are design parameters and can be the same value or different values.

3) Node B reaches the maximum allowed transmission power.

The method for implementing the fast dynamic channel configuration escape program in the wireless communication system includes a signal independent coding configuration program and a post-coding configuration program. The post-coding coding configuration program can receive the touch signal, obtain the WTRU measurement and the Node B measurement from the RRC resource sharing shared cell database, obtain the cell configuration information and the wireless transmission/reception from the centralized database. The unit (WTRU) information determines the candidate coded composite transmission channel to be reassigned, and the candidate code to be reassigned. The code configuration program can check the available codes in the cell, check the transmitted power of the candidate time slot, check whether the interference signal coding power (ISCP) of other time slots is lower than the candidate time slot, and generate the time slot required for the available time slot. Sequence, assigning candidate code groups to available time slots in the time slot sequence, wherein the successful assignment is a solution; calculating the interference signal coding power (ISCP) of each solution; and selecting the solution with the lowest weighted interference signal coding power as the optimal solution . The post-code configuration program stores the reconfiguration information in a centralized repository and establishes a physical channel reconfiguration request message.

The method of implementing a fast dynamic channel configuration escape mechanism in a wireless communication system begins by receiving and processing a touch signal. The WTRU and Node B metrics are retrieved from the centralized repository and determine the physical resources to be reassigned. The coding group is configured into an available time slot, and the configuration information is stored in a centralized repository. The physical channel reconfiguration request message is transmitted, including the new configuration information of the WTRU.

The present invention provides a method for implementing a fast dynamic channel configuration background interference reduction procedure in wireless resource management. The method for implementing the fast dynamic channel configuration background interference reduction program in the wireless communication system includes a pre-coding configuration program, a signal independent coding configuration program, and a post-coding configuration program. The pre-coding configuration program can receive the background timing trigger signal; obtain the WTRU measurement and the Node B measurement from the radio resource control shared cell database; obtain the cell and wireless transmission/receive from the centralized database Cell (WTRU) information; determine candidate time slots to be reassigned (one for the uplink direction and one for the downstream direction); retrieve the available time slots from the centralized repository that will be used for reassignment; and decide The candidate code to be reassigned. The encoding configuration program can check the available encoding groups in the cell; check the transmission power of the candidate time slots; generate a time slot sequence for the available time slots; assign the candidate coding groups to the available time slots in the time slot sequence, where the successful assignment is For the solution; calculate the interference signal coding power (ISCP) of each solution; and select the solution with the lowest weighted interference signal coding power as the solution. The post-code configuration program stores the reconfiguration information in a centralized repository and establishes a physical channel reconfiguration request message.

The method for implementing the fast dynamic channel configuration background interference reduction program in the wireless communication system includes pre-coding configuration processing, signal independent coding configuration processing, and post-coding configuration processing. The pre-coding configuration process begins with receiving a timing trigger signal. The system measurement system was retrieved from a centralized database. The physical resources to be reassigned are based on the quality number. The encoding configuration program begins by examining the available encoding groups in the cell and generating a sequence of time slots for the available time slots. The code group is assigned to the available time slots in the time slot sequence, where the success assignment is a solution. Interference Signal Coding Power (ISCP) is used to calculate each solution and has the lowest weighted interfering signal coding power system selected as the optimal solution. The reconfiguration information is stored in a centralized repository. The physical channel reconfiguration request message containing the configuration information is transmitted.

The present invention provides a fast dynamic channel configuration call admission control (CAC) calculus that implements a wireless link add-on procedure in wireless resource management. The fast dynamic channel configuration call admission control (CAC) algorithm in the implementation of the wireless communication system includes pre-coding configuration processing, signal independent coding configuration processing, and post-coding configuration processing. The pre-coding configuration process includes receiving and processing the wireless link attach request message and retrieving the system information from the centralized database. The encoding configuration processing includes checking the available encoding groups in the cells; generating a time slot sequence; assigning the encoding groups to the available time slots in the time slot sequence, wherein the successful assignment is a solution; calculating the interference signal encoding power (ISCP) of each solution And select the solution with the lowest weighted interference signal coding power (ISCP) as the best solution. Post-coding configuration processing involves storing configuration information in a centralized repository and establishing a wireless link attachment response message.

The Fast Dynamic Channel Configuration Call Admission Control (CAC) algorithm for wireless link attachment in wireless communication systems begins by receiving a wireless link attach request message to initiate a Call Admission Control (CAC) function. The request message is processed, and the available time slot table and code group list are retrieved from the centralized database. The code group is configured into the available time slots in the new cell, and the configuration information is stored in the centralized database. The wireless link attach response message is transmitted by the code configuration processing result.

The present invention provides a fast dynamic channel configuration call admission control (CAC) calculus that implements a wireless link reconfiguration procedure in wireless resource management. The fast dynamic channel configuration call admission control (CAC) algorithm in the implementation of the wireless communication system includes pre-coding configuration processing, signal independent coding configuration processing, and post-coding configuration processing. The pre-coding configuration process includes receiving and processing request messages and retrieving system information from a centralized database. The encoding configuration processing includes checking the available encoding groups in the cells; generating a time slot sequence; assigning the encoding groups to the available time slots in the time slot sequence, wherein the successful assignment is a solution; calculating the interference signal encoding power (ISCP) of each solution And selecting the solution with the lowest weighted interference signal coding power as the optimal solution. Post-coding configuration processing involves storing configuration information in a centralized repository and establishing a response message.

A Fast Dynamic Channel Configuration Call Admission Control (CAC) algorithm for wireless link reconfiguration in a wireless communication system begins by receiving a request message to initiate a Call Admission Control (CAC) function. The request message is processed, and the available time slot table and code group list are retrieved from the centralized database. The code group is configured to the available time slot, and the configuration information is stored in the centralized database. A response message with the result of the encoding configuration process is then transmitted.

The invention can be understood in more detail by the following description of the preferred embodiments and the accompanying drawings.

Call Admission Control (CAC) established by wireless link

The Fast Dynamic Channel Configuration Call Admission Control (CAC) Logic Overview 100 of the Wireless Link Setup Procedure 102 is shown in the first figure. The Fast Dynamic Channel Configuration Call Admission Control (CAC) Logic 102 main function consists of three parts: a pre-coding configuration process 104, an encoding configuration process 106, and a post-coding configuration process 108. The pre-coding configuration process 104 can read the WTRU measurements from the wireless link setup request message 110, the Node B measurements from the RRC shared cell repository 112, and prepare the inputs for the code configuration. (A list of available time slots from the Radio Resource Management Cell Library 116 and a list of coded groups from the Operation and Maintenance (OAM) Radio Resource Management Table Library 114).

The encoding configuration process 106 can examine the available encodings in the cells, generate a time slot sequence, find the best solution for the encoding group (assign the encoding in the encoding group to the available time slot), and encode from the radio resource management cell library 116. The vector configures the centralized encoding. The post-coding configuration process 108 is responsible for establishing a wireless transmit/receive unit (WTRU) in the radio resource management wireless transmit/receive unit (WTRU) database 118, recording the configured physical channel to the radio resource management radio transmission/reception unit (WTRU). In the database 118, the physical channel parameters and power control information are recorded in the wireless link setup response message 120.

In addition to processing and data exchange between databases, data exchange also occurs directly between processing. WTRU measurement, Node B measurement, available time slot table in cell, code group list for specific data rate, and WTRU performance information, pre-coded Configuration process 104 is passed to encoding configuration process 106. The physical channel information (the time slot table column and the channel code in each time slot) is transmitted from the code configuration process 106 to the post-code configuration process 108.

In the present invention, the fast dynamic channel configuration call admission control (CAC) calculus 102 fast dynamic channel configuration call admission control (CAC) calculus function is modulated into two sets of functions: the input is a signal dependent function of the signal portion, and Enter a signal independent function that is independent of the signal message. The purpose of separating the signal dependent function and the signal independent function is to increase the reusability of the signal independent function. The functions of the pre-encoding configuration processing 104 and the post-coding configuration processing 108 are signal dependent functions. In contrast, the functionality of the encoding configuration process 106 is a signal independent function. It should be noted that the functionality of the code configuration process 106 can be reused by other programs in other wireless resource management implementations such as switching, fast dynamic channel configuration escape mechanisms, and fast dynamic channel configuration background interference reduction algorithms.

A flow chart of the fast dynamic channel configuration call admission control (CAC) calculus function set up by the wireless link is shown in the second a-c and three a-b diagrams. The second a-c diagram shows the main interface functionality 200 of the Fast Dynamic Channel Configuration Call Admission Control (CAC) calculus established by the wireless link. The function 200 begins by obtaining a wireless link setup request message (hereinafter referred to as a "request message"; step 202) and extracting parameters from the request message (step 204). The request message includes Coded Synthetic Transport Channel (CCTrCH) information, Dedicated Channel (DCH) information, with or without WTRU measurement of wireless link information and WTRU performance information. The parameters retrieved from the request message include WTRU identification, cell identification, wireless link identification, and WTRU performance information (maximum number of physical channels per time slot and per The maximum number of slots in the box).

An entry test of the radio resource management cell database is obtained (step 206). Next, a determination is made as to whether the WTRU measurement including the downlink interference signal coding power (DL ISCP) is included in the request message (step 208). If the WTRU measurement is not included in the request message, a check is made to determine if all of the dedicated channels are non-instant (NRT; steps 210 and 212). If all of the dedicated channels are instant, the status flag is set to indicate a failure condition (step 214) and the function terminates (step 216). A failure condition means that no wireless resource/receiving unit (WTRU) is available. It should be noted that all dedicated channels that are only instant are not a failure. A failure condition occurs when there is no WTRU measurement and all dedicated channels are instantaneous.

If all of the dedicated channels are non-instant (step 212), the low rate temporary dedicated channel is configured for the current coded composite transmission channel (CCTrCH) (step 218). After the channel is configured, it is determined whether the resource configuration is successful (step 220). If the resource configuration is unsuccessful, the status flag is set to indicate a failure condition (step 214) and the function terminates (step 216). If the resource configuration is successful (step 220), the WTRU entry is established and the WTRU information and physical channel parameters are recorded in the RRC radio transmission/reception unit (WTRU). ) in the database (step 222). Information recorded to the WTRU entry includes WTRU identification, transaction identification, uplink WTRU performance information, and downlink wireless transmission/reception unit ( WTRU) performance information, and wireless link information. The uplink wireless transmit/receive unit (WTRU) performance information includes the maximum number of slots per frame and the maximum number of connected physical channels per time slot. The downlink WTRU performance information includes the maximum number of slots per frame and the maximum number of connected physical channels per slot. The wireless link information includes wireless link identification, cell identification, uplink coded composite transmission channel information, and downlink coded composite transmission channel information. The coded composite transmission channel (CCTrCH) information includes a coded composite transmission channel (CCTrCH) identification, a coded composite transmission channel (CCTrCH) state, a coded composite transmission channel (CCTrCH) signal to interference ratio (SIR) target, a guaranteed data rate, and a data rate allowed. , and Dedicated Physical Channel (DPCH) information. The dedicated entity channel information includes a time slot table column, a training sequence (midamble) shift and burst type, a transport format coding index (TFCI) presentation and encoding information. The coding information includes channel coding, coding usage status, dedicated physical channel identification and coding signals to interfere with the target.

Next, the physical channel information and power control information are placed in the wireless link setup response message (step 224), the status flag is set to indicate the success (step 226), and the function is terminated (step 216). The physical channel information includes the time slot table and channel code in each time slot. The time slot information includes the repetition period and the repetition length. The power control information includes the uplink target signal to interference ratio, the maximum uplink signal to interference ratio, the minimum uplink signal to interference ratio, the start downlink transmission power, the minimum downlink transmission power, and the maximum allowed uplink transmission power. In one implementation of the present invention, a single data structure is used for request messages and response messages because the two messages contain a large amount of shared information.

If there is available WTRU measurement in the request message (step 208), the WTRU measurement is retrieved from the request message and the Node B measurement is obtained from the radio resource. The shared cell metadata library is controlled (step 228). The Node B measurement includes a shared measurement and a dedicated measurement. The Node B shared measurement includes the uplink interference signal coding power and the downlink transmission carrier power. The Node B dedicated measurement includes the downlink transmission coding power. The fast downlink coded composite transmission channel is selected (step 230) and the service type of the selected coded composite transmission channel (CCTrCH) is obtained (step 232). If the service type is immediate (RT; step 234), the available time slot in the cell is determined (step 236). If no time slot is available (step 238), the status flag is set to indicate a failure condition (step 214) and the function terminates (step 216).

If a time slot is available (step 238), the requested data rate is calculated (step 240). The coded group of the calculated data rate is obtained (step 242), and the physical channel (time slot and code) of the current coded composite transmission channel (CCTrCH) is configured, and the best solution is recorded if found. 244). The configuration functions in step 244 are discussed in more detail in the following third and third b diagrams. If the resource configuration fails (step 246), the status flag is set to indicate a failure condition (step 214) and the function terminates (step 216).

If the resource configuration is successful (step 246), then it is determined if there is an additional coded composite transmission channel to be checked (step 248). If the resource configuration is successful (step 246), then it is determined if there is an additional coded composite transmission channel to be checked (step 248). If there is an additional coded composite transmission channel to be examined, the next coded composite transmission channel (CCTrCH) is selected (step 250) and the function continues at step 232. If there is no additional coded composite transmission channel to be checked (step 248), it is determined if the uplink encoded composite transmission channel has been checked (step 252). If the uplink encoded composite transmission channel has not been checked, the first uplink encoded composite transmission channel is selected (step 254) and the function continues at step 232. If all of the uplink encoded composite transmission channels have been considered (step 252), then the function continues to step 222 as described above.

If the service type is non-instant (step 234), the available time slot in the cell is determined (step 256). If no time slot is available (step 258), the status flag is set to indicate a failure condition (step 214) and the function terminates (step 216).

If there is an available time slot (step 258), then all data rates applicable to the non-instant service are determined (step 260) and the highest data rate is selected (step 262). The encoded set of selected data rates is obtained (step 264), the normal temporary dedicated channel of the current coded composite transmission channel (CCTrCH) is configured, and the best solution is recorded if found (step 266). It should be noted that steps 244 and 266 are essentially the same; in non-instant service, the dedicated channel is temporary.

If the resource configuration fails (step 268), it is determined if there is an additional data rate to be checked (step 270). If there are no other data rates to be checked, the status flag is set to indicate a failure condition (step 214) and the function terminates (step 216). If the resource configuration is successful (step 268), then the function continues as in step 248 as described above.

It should be noted that in either of steps 230, 252 and 254, either direction (down or up) may be performed first. As described above, the lower direction is checked in preference to the upper direction. Function 200 will operate in the same manner, otherwise the connection will be checked first.

Steps 244 and 266 are related to the call fast dynamic channel configuration algorithm to configure the physical channel. This core function 300 is signal independent and is illustrated in the third a and b diagrams. Function 300 begins with receiving a code group and an available time slot as input (step 302). The first coding group is selected (step 304) and it is determined whether the coding group is available for use in the cell (steps 306 and 308). If the selected code set is not available in the cell, then it is determined if there are more code groups to be checked (step 310). If there are more code groups, the next code group is selected (step 312) and the function continues at step 306. If there is no code group, this indicates a failure condition, the status flag is set to indicate no solution (step 314) and the function is terminated (step 316).

If the selected code group is available in the cell (step 308), the resource elements required to encode the code group in the composite transport channel (CCTrCH) are calculated (step 318). A time slot sequence is generated (step 320) and the first time slot sequence is selected (step 322). The lower or upper direction is then determined (step 350). If the link direction is down, an attempt is made to assign the current downlink code group to the available time slot in the current time slot sequence (step 352). If the link direction is up (step 350), an attempt is made to assign the current uplink code group to the available time slot in the current time slot sequence (step 354). In an alternate embodiment of the invention (not shown), step 350 can be deleted, and steps 352 and 354 can be combined into a single step to provide an incidental optimization.

After attempting to assign the current code group to the available time slot in the current time slot sequence (steps 352, 354), it is determined whether the assignment solution has been found (step 356), indicating that the code group was successfully assigned to the current time slot sequence. Time slot. If the solution is found, the interfering signal coding power (ISCP) of the solution is determined, and the solution with the lowest weighted interfering signal coding power is considered to be the best solution and is recorded (step 358). If the solution is not found, then step 358 is skipped.

Next, a decision is made as to whether there are any additional time slot sequences to be considered (step 360). If there is an additional time slot sequence, the next time slot sequence is selected (step 362) and the function continues at step 350. If there is no additional time slot sequence (step 360), it is determined if the best solution has been found (step 364). If the best solution is not found, then the function continues at point C in the call function (i.e., the function that step 350 is entered). If the best solution is found, the status flag is set to indicate successful assignment (step 366) and the function terminates (step 316).

In the past implementation of Fast Dynamic Channel Configuration Call Admission Control (CAC) calculus, functions 352 and 354 were signal dependent. In the present invention, these two functions are modified to be signal independent functions. The functions used for these two functions have also been modified to become signal independent functions. Because the inputs to functions 352, 354 are independent of signal messages (e.g., input messages), functions 352, 354 can be used by other RRC programs. It should be noted that the above described fast dynamic channel configuration call admission control (CAC) calculus implementation is exemplary and can be further optimized.

Escape

An overview 400 of the fast dynamic channel configuration escape program 402 is shown in the fourth diagram. The main function of the fast dynamic channel configuration escape program 402 consists of three parts: a pre-encoding configuration process 404, an encoding configuration process 406, and a post-embler configuration process 408. The pre-coded configuration process 404 begins with receiving the measurement touch signal 410. There are two measurement touch signals, a wireless transmit/receive unit (WTRU) measurement signal and a node B measurement touch signal. The WTRU measurement signal includes a WTRU identification and time slot number list, and the Node B measurement touch signal includes a time slot number. The escape procedure begins with receiving a WTRU measurement signal or a Node B measurement touch signal.

The pre-encoding configuration process 404 can obtain the Node B measurement and the WTRU measurement from the RRC shared cell repository 412, and obtain the cell configuration information from the RRC resource library 416, from the wireless A resource management wireless transmit/receive unit (WTRU) database 418 obtains WTRU performance information, determines a coded composite transmission channel (CCTrCH) to be reassigned, and calculates a wireless transmit/receive unit (WTRU) path loss. , determine the candidate code groups that will be reassigned, and obtain a list of available time slots. The pre-encoding configuration process 404 can prepare input for the encoding configuration process 406.

The encoding configuration process 406 can check the encoding availability in the cell, check the transmission (Tx) power of the candidate time slot, and check whether the interference signal coding power (ISCP) of the other time slots is lower than the interference signal coding power of the candidate time slot (ISCP). Generating a time slot sequence of available time slots, searching for an assigned solution of the coded group in the time slot sequence (by assigning candidate code groups to available time slots), and selecting the solution with the lowest weighted interference signal coding power as the optimal solution . The post-coding configuration process 408 is responsible for recording the latest configured physical channel in the WTRU data base 418 and populating the physical channel information into the physical channel reconfiguration request message 420.

In addition to processing and data exchange between databases, data exchange is also directly generated in the processing room. Wireless transmit/receive unit (WTRU) measurements, Node B measurements, available time slot tables in the cells, candidate code groups and WTRU performance information are transmitted from the pre-coding configuration process 404 to Encoding configuration process 406. The physical channel information (time slot table and channel code in each time slot) is transmitted from the code configuration process 406 to the post-code configuration process 408.

In the present invention, the function of the fast dynamic channel configuration escape calculation 402 is modulated into two sets of functions: the input is a signal dependent function of the signal portion of the signal, and the signal independent function independent of the signal message is input. The purpose of distinguishing between signal-dependent functions and signal-independent functions is to increase the reusability of signal-independent functions. The functions of the pre-encoding configuration processing 404 and the post-coding configuration processing 408 are signal dependent functions. In contrast, the functionality of the encoding configuration process 406 is a signal independent function. The reusability of signal independent functions is higher than the reusability of signal dependent functions. The particular function that is inherently signal dependent is converted from signal dependent to signal independent in a preferred embodiment of the invention, thereby increasing the reusability of the converted function.

The functional flow chart of the fast dynamic channel configuration escape program is shown in the fifth a, b and six diagrams. The fifth a and b diagrams show a flow chart of the primary escape calculation 500, which begins by receiving an input from the touch signal (step 502). The entry identification of the radio resource management cell database is retrieved from the radio resource management cell repository (step 504). The WTRU measurement and the Node B measurement are retrieved from the shared cell repository (step 506). The time slot link direction with the link problem is determined (step 508), and the time slot with the worst link problem is located.

The candidate coded composite transmission channel to be reassigned is determined based on how the escape mechanism is activated (step 510). When the escaping procedure is triggered by the excessively low interfering signal coding power of the WTRU in the time slot, the WTRU-coded composite transmission channel (CCTrCH) in this time slot is Reassigned candidates. The downlink interference signal coding power is measured by a WTRU, and in this example, the escaping procedure is triggered by a WTRU measurement signal.

When the escape procedure is triggered by the excessively high interference signal encoding power in the time slot, the coded composite transmission channel (CCTrCH) with the code is the candidate to be reassigned due to the highest signal to interference ratio plus the path loss value. When the escape procedure is touched by the Node B transmission coding power, the coded composite transmission channel (CCTrCH) with the code is the candidate to be reassigned because the Node B transmits the coding power. The uplink interference signal coding power and the Node B transmission coding power are measured by the Node B, and in these two cases, the escape procedure is triggered by the Node B measurement signal.

If no candidate coded composite transmission channel is found (step 512), the status flag is set to indicate a failure condition (step 514) and the program terminates (step 516). If the candidate coded composite transmission channel is found (step 512), the wireless transmit/receive unit (WTRU) performance information is retrieved from the wireless resource management wireless transmit/receive unit (WTRU) database (step 518). The path loss of the WTRU is calculated (step 520) and the candidate coding set to be reassigned is determined (step 522). The candidate coding group is based on whether the updated Interference Signal Coding Power (ISCP) is less than the Interference Signal Coding Power (ISCP) threshold or is updated after the code group is removed from the time slot with the link problem. Whether the time slot transmission power is less than the transmission power threshold is determined. In this decision, the Interference Signal Coding Power (ISCP) threshold and the transmission power threshold are design parameters. If no code group is reassigned (step 524), the status flag is set to flag a failure condition (step 514) and the program terminates (step 516).

If there is a reassigned code group (step 524), then the reassigned code available time slot is retrieved from the central repository (step 526). If no time slot is available (step 528), the status flag is set to indicate a failure condition (step 514) and the program terminates (step 516). If there is a time slot available (step 528), the physical channel (time slot and code) is configured for the coded composite transmission channel (CCTrCH) (step 530).

If the physical channel configuration fails (step 532), the status flag is set to flag a failure condition (step 514) and the program terminates (step 516). If the resource configuration is successful (step 532), the new physical channel information is recorded in the WTRU's data base (step 534). As long as the best solution is found, the resource configuration (step 532) is considered successful. The physical channel information includes the dedicated physical channel time slot information, the repeat period value and the repeat length value. The dedicated physical channel time slot information includes the number of time slots, training sequence shift and burst type, transmission format coding indicator presentation and coding information list. The coding information includes channel coding, coding usage status, dedicated physical channel identification and coding signals for interference targets.

The physical channel information is also placed in the physical channel reconfiguration request message (step 536), the status flag is set to indicate a success (step 538) and the program terminates (step 516). The physical channel reconfiguration request message includes the following information: WTRU identification, control of wireless network controller identification, wireless link identification, wireless resource control transaction identification, uplink coded composite transmission channel information, and Even coded composite transmission channel information.

Step 530 is to configure the core function of the physical channel with respect to the call fast dynamic channel configuration escape procedure. This core function 600 is signal independent and is illustrated in Figures 6 and 3a. Function 600 begins with receiving a code group, an available time slot, and a fast dynamic channel configuration type indicator as input (step 602). The first coding group is selected (step 604) and determines if the code group is present in the cell (steps 606 and 608). If there is no selected coding group in the cell (step 608), it is determined if there are more code groups to be examined (step 610). If there are more code groups, the next code group is selected (step 612) and the function continues at step 606. If there are no more code groups (step 610), then this flag indicates a failure condition, the status flag is set to indicate no solution (step 314; third b picture) and the function terminates (step 316; third b picture).

If there is a selected code group in the cell (step 608), the fast dynamic channel configuration type is checked (step 618). The fast dynamic channel configuration type is based on different radio resource management functions such as radio bearer setup ("RBSETUP"), egress mechanism or background interference reduction. In the escape procedure, the fast dynamic channel configuration type is set to "ESCAPE" and can be set to any step before step 520 above. If the fast dynamic channel configuration type is "ESCAPE", the transmission power of the candidate time slot is checked to determine if it is greater than the minimum required transmission power (step 620). If the candidate time slot transmission power is less than the minimum value (step 622), the status flag is set to indicate no solution (step 314) and the function is terminated (step 316; third b-picture).

If the candidate time slot transmission power is greater than the minimum value (step 622), then check to determine if there are any time slots with interference signal coding power (ISCP) for the time slot with a lower reported link problem (step 624). If there are no other time slots with lower interfering signal coding power (ISCP) (step 626), the status flag is set to indicate no solution (step 314; third b picture) and the function terminates (step 316; third b)).

If there is another time slot with lower interference signal coding power (ISCP) (step 626) or if the fast dynamic channel configuration type is "RBSETUP" (step 618), then the code group in the composite transmission channel (CCTrCH) is required to be encoded. The resource unit is calculated (step 640). A time series is generated for the available time slots (step 642) and the first time series is selected (step 644). As in the third diagram b above, the method continues at step 350. The steps (step 618) performed if the fast dynamic channel configuration type is "background" are discussed below.

Background interference reduction

An overview 700 of the fast dynamic channel configuration background interference reduction procedure 702 is shown in the seventh diagram. The main function of the fast dynamic channel configuration background interference reduction program 702 is three parts: a prior encoding configuration process 704, an encoding configuration process 706, and a post-coding configuration process 708. The pre-coded configuration process 704 begins by receiving a background timing touch signal 710. The pre-encoding configuration process 704 can obtain the entry identification of the radio resource management cell repository 716, obtain the Node B measurement from the radio resource control shared cell repository 712, and determine the coded composite transmission channel (CCTrCH) to be reassigned, and calculate The WTRU path loss, the candidate time slot to be reassigned (a uplink time slot and a subsequent time slot), retrieved from the RRC resource pool 716 will be used for reassignment The list of available time slots determines the candidate code groups to be reassigned in both directions, obtains WTRU performance information from the WTRU data base 418, and calculates wireless Transmit/Receive Unit (WTRU) path loss.

Encoding configuration process 706 can check the encoding availability in the cell, check the transmission (Tx) power of the candidate time slot, search for the assigned solution of the coded group of time slot sequences (by assigning the candidate code group to the available time slot), and select with The solution of the lowest weighted interference signal coding power (ISCP) is the optimal solution. The post-coding configuration process 708 is responsible for recording the reconfigured physical channel in the WTRU data base 718 and populating the physical channel information into the physical channel reconfiguration request message 720.

In addition to processing and data exchange between databases, data exchange is also directly generated in the processing room. WTRU measurements, Node B measurements, available time slot entries in cells, candidate code groups and WTRU performance information are transmitted from the pre-coding configuration process 704 to Encoding configuration process 706. The physical channel information (time slot table and channel code in each time slot) is transmitted from the code configuration process 706 to the post-code configuration process 708.

In the present invention, the function of the fast dynamic channel configuration background interference reduction program 702 is modulated into two sets of functions: the input is a signal dependent function of the signal portion of the signal, and the signal independent function independent of the signal message is input. The purpose of distinguishing between signal-dependent functions and signal-independent functions is to increase the reusability of signal-independent functions. The functions of the pre-encoding configuration processing 704 and the post-coding configuration processing 708 are signal dependent functions. In contrast, the functionality of the encoding configuration process 706 is a signal independent function. Therefore, the reusability of signal independent functions is higher than the reusability of signal dependent functions. The particular function that is inherently signal dependent is converted from signal dependent to signal independent in a preferred embodiment of the invention, thereby increasing the reusability of the converted function.

Fast Dynamic Channel Configuration The flow chart of the background interference reduction program function is shown in the eighth, a, b, six and three b diagrams. The eighth and a diagrams show a flow chart of the main function of the background interference reduction program 800, which is started by searching for the entrance attempt of the radio resource management cell database (step 8O4) (step 8O2). The WTRU measurement and the Node B measurement are retrieved from the shared cell repository (step 8O6). The reassigned candidate time slot is determined based on the time slot measurement factor by an uplink time slot and a subsequent time slot (step 8O8). The time slot with the lowest measurement factor is selected as the candidate for reassignment. If there is no time slot reassigned (step 81O), the status flag is set to indicate a failure condition (step 812) and the program terminates (step 814). If there is a time slot that is reassigned (step 81O), the link direction is set to be connected (step 816). It should be noted that the order of evaluation of the chain direction is arbitrary, and it can be evaluated first whether it is connected or connected.

The available time slots in the cells selected for the link direction are retrieved (step 818). If no time slot is available (step 820), the status flag is set to indicate a failure condition (step 812) and the program terminates (step 814). If there is a time slot available (step 820), the available time slot list is updated to exclude candidate time slots (step 822). The coded group to be reassigned is determined in the candidate time slot based on the coding measurement factor (step 824). The code with the lowest measurement factor is chosen as the candidate for reassignment. If there is no reassigned code group (step 826), the status flag is set to indicate a failure condition (step 812) and the program terminates (step 814). If there is a reassigned code group (step 826), the WTRU performance information is retrieved from the WTRU library (step 828).

The path loss of the WTRU is calculated (step 830), and the physical channel for the current coded composite transmission channel (CCTrCH) is reassigned (step 832). If the channel reassignment fails (step 834), the status flag is set to indicate a failure condition (step 812) and the program terminates (step 814). If the channel reassignment is successful (step 834), it is determined if the link direction is the current uplink (step 836). If the link direction is the current connection, the link direction is set to be connected (step 838), and the method continues at step 818.

If the current link direction is uplink (step 836), then it is determined whether the uplink coded composite transmission channel and the downlink coded composite transmission channel are to be reassigned to belong to the same WTRU (step 840). If the coded composite transmission channel (CCTrCH) to be reassigned belongs to a different WTRU, the flag is set to indicate that the two different WTRUs will be reassigned (step 842) . If the coded composite transmission channel (CCTrCH) belongs to the same WTRU (step 840) or the flag has been set (step 842), the physical channel configuration information is recorded in the RRC radio transmission/reception unit. In the (WTRU) database (step 844). The physical channel information includes the dedicated physical channel time slot information, the repeat period value, and the repeat length value. The dedicated physical channel time slot information includes the number of time slots, training sequence shift and burst type, transmission format coding indicator presentation and coding information list. The coding information includes channel coding, coding usage status, dedicated physical channel identification, and coded signal interference ratio target.

The physical channel configuration information is also recorded in the physical channel reconfiguration request message (step 846), the status flag is set to indicate "success" (step 848) and the program terminates (step 814). If the flag indicates that the two WTRUs have re-assigned the coded composite transmission channel (CCTrCH) (step 842), the corresponding physical channel information system for the two WTRUs It is recorded (step 844) and the two physical channel reconfiguration request messages are transmitted (step 846). The physical channel reconfiguration request message includes the following information: WTRU identification, control of wireless network controller identification, wireless link identification, wireless resource control transaction identification, uplink coded composite transmission channel information, and Even coded composite transmission channel information.

Step 832 is related to the call to the fast dynamic channel configuration background interference reduction program core function to reconfigure the physical channel. This core function is signal independent and illustrated in the sixth and third b-pictures. Since the following accompanying steps are performed with the background interference reduction program, the function 600 operates in the same manner as described above. In the background interference reduction procedure, the fast dynamic channel configuration type is set to "BACKGROUND", and it can be set at any step before step 832. If the fast dynamic channel configuration type is "BACKGROUND" (step 618), the transmission power of the candidate time slot is checked to determine if it is greater than the minimum required transmission power (step 63O). If the transmission power of the candidate time slot is less than the minimum value (step 632), the status flag is set to indicate no solution (step 314; third b-picture) and the function terminates (step 316; third b-picture). If the transmission power of the candidate time slot is greater than the minimum transmission power (step 632), then the process continues at step 640 above.

Wireless Link Attached Call Admission Control (CAC)

An overview 900 of the wireless link-attached call admission control (CAC) procedure is shown in the ninth diagram. The main function of the Fast Dynamic Channel Configuration Call Admission Control (CAC) program 902 is three-part: pre-encoding configuration processing 904, encoding configuration processing 906, and post-coding configuration processing 908. The pre-encoding configuration process 904 can read the WTRU measurements from the wireless link attach request message 910 (hereinafter "request message") and the node B amount from the radio resource control shared cell repository 912. The coded composite transmission channel (CCTrCH) information, dedicated channel information, and WTRU performance information are retrieved from a radio resource management WTRU database 918. The pre-encoding configuration process 904 can also retrieve the available time slot list in the new cell from the radio resource management cell repository 916, and obtain the coded composite transmission channel (CCTrCH) from the radio resource management WTRU database 918. The data rate, and the code group obtained from the operation and maintenance radio resource management table database 914.

Encoding configuration process 906 can check the encoding availability in the new cell, generate a time slot sequence of available time slots, search for the best solution for the code group (assign the code in the code group to the available time slot), and manage the cell from the radio resource The coding vector in the database 916 configures channel coding. The post-coding configuration processing 908 is responsible for updating the coding vector information in the radio resource management cell database 916, recording new wireless radio link information and physical channel information in the radio resource management radio transmission/reception unit (WTRU) database 918, And the record code synthesis transmission channel (CCTrCH) information, the dedicated channel information, the dedicated physical channel information, the uplink interference signal coding power information and the power control information in the wireless link attachment response message 920.

In addition to processing and exchanging data between databases, data exchange can occur directly between processing. WTRU measurement, Node B measurement, available time slot table in cell, code group list for specific data rate, and WTRU performance information, pre-coded Configuration process 904 is passed to encoding configuration process 906. The physical channel information (time slot table and channel code in each time slot) is transmitted from the code configuration process 906 to the post-code configuration process 908.

In the present invention, the function of the fast dynamic channel configuration call admission control (CAC) program 902 attached to the wireless link is modulated into two sets of functions: the input is a signal dependent function of the signal message portion, and the input is independent of the signal message. Signal independent function. The purpose of separating the signal dependent function and the signal independent function is to increase the reusability of the signal independent function. The functions of the pre-encoding configuration processing 904 and the post-coding configuration processing 908 are signal dependent functions. In contrast, the functionality of the encoding configuration process 906 is a signal independent function. Therefore, the reusability of signal independent functions is higher than the reusability of signal dependent functions. The particular function that is inherently signal dependent is converted from signal dependent to signal independent in a preferred embodiment of the invention, thereby increasing the reusability of the converted function.

A flow chart of the Fast Dynamic Channel Configuration Call Admission Control (CAC) program function for wireless link attachment is shown in the tenth ac diagram, which shows the Fast Dynamic Channel Configuration Call Admission Control (CAC) of the Wireless Link Attachment Program. The main interface function is 1000. The function 1000 begins with obtaining a wireless link attach request message (step 1002), and extracts WTRU identification, new wireless link identification, and new cell identification from the request message (step 1004). The request message also includes new wireless link information with or without wireless transmit/receive unit (WTRU) measurements.

A new cell entry identification in the radio resource management cell database is obtained (step 1006). The node B measurement system of the new cell can be obtained from the radio resource control shared cell database and stored in the measurement data structure (step 1008). The measurement data structure is dynamically stored in the Fast Dynamic Channel Configuration Call Admission Control (CAC) function. When the Fast Dynamic Channel Configuration Call Admission Control (CAC) function is popped out, it is established when the Fast Dynamic Channel Configuration Call Admission Control (CAC) function is called and deleted. The Node B measurement system includes a shared measurement and a dedicated measurement. The Node B shared measurement system includes uplink interference signal coding power information and downlink transmission carrier power. Next, the old cell identification is retrieved from the RRC resource base based on the WTRU identification; the WTRU wireless chain belonging to the old cell The Coding Synthetic Transport Channel (CCTrCH) information and the dedicated channel information in the knot are retrieved from the Radio Resource Management Wireless Transmit/Receive Unit (WTRU) database (step 1010).

Next, it is determined whether the WTRU measurement including the downlink interfering signal coding power and the downlink shared control entity channel received signal coding power (P-CCPCH RSCP) is included in the request message (step 1012) ). If the WTRU measurement is not included in the request message, the type of service is retrieved from the RRC information (step 1014) and the secondary channel is checked for all dedicated channels. Both are not instant (step 1016).

If all of the dedicated channels are non-instant, the status flag is set to indicate a failure condition (step 1018) and the function terminates (step 1020). A failure here means that there is not enough information to further process the function. It should be noted that only all immediate dedicated channels are non-failed; failures are reached when there is no WTRU measurement and all dedicated channels are instantaneous. If all of the dedicated channels are non-instant (step 1016), the low rate temporary dedicated channel is configured for the uplink and downlink encoded composite transmission channels (step 1022). After the channel is configured, it is determined whether the resource configuration is successful (step 1024). If the resource configuration fails, the status flag is set to indicate a failure condition (step 1018) and the function terminates (step 1020). If the resource configuration is successful, the new wireless link information and the physical channel information are recorded in the wireless resource management wireless transmission/reception unit (WTRU) database, and the code vector information is updated in the wireless resource management cell database. (Step 1026).

The recorded information contains new wireless link information and new wireless resource control transaction identification. The wireless link information includes wireless link identification, cell identification, uplink coded composite transmission channel information, and downlink coded composite transmission channel information. The coded composite transmission channel (CCTrCH) information includes a coded composite transmission channel (CCTrCH) identification, a coded composite transmission channel (CCTrCH) state, a coded composite transmission channel (CCTrCH) signal, the interference ratio target, a guaranteed data rate, a data rate allowed, and a dedicated data rate. Physical channel information. The dedicated physical channel information includes the dedicated physical channel time slot information table column, the repeat period value and the repeat length value. The dedicated physical channel time slot information includes the number of time slots, training sequence shift and burst type, transmission format coding indicator presentation and coding information list. The coding information includes channel coding, coding usage status, dedicated physical channel identification and coding signals for interference targets.

The updated coding vector information includes the uplink coding vector information and the downlink coding vector information. The uplink coding vector information includes code recognition, coding block identification and coding use status. The following coded vector information includes code recognition and coding usage status.

If there is a wireless transmit/receive unit (WTRU) measurement in the request message (step 1012), the WTRU measurement is retrieved from the request message and stored locally (step 1032). The first downlink coded composite transmission channel (CCTrCH) is selected (step 1034), and the WTRU performance information is based on the WTRU identification, the connection direction and the old cell identification from A radio resource management wireless transmit/receive unit (WTRU) database is retrieved (step 1036). The service type of the selected coded composite transmission channel (CCTrCH) is obtained from the radio resource management wireless transmission/reception unit (WTRU) database (step 1038). If the service type is immediate (step 1040), the available time slot in the cell is determined (step 1042). If no time slot is available (step 1044), the status flag is set to indicate a failure condition (step 1018) and the program terminates (step 1020).

If there is a time slot available in the new cell (step 1044), the highest required data rate of the coded composite transmission channel (CCTrCH) in the old cell is retrieved from the WTRU data base (steps). 1046). A code group requiring a data rate is obtained (step 1048), and the physical channel (time slot and code) of the current coded composite transmission channel (CCTrCH) is configured and the best solution is recorded if found (step 1050). The configuration functions in step 1050 are discussed in more detail in the third a and b diagrams. If the resource configuration fails (step 1052), the status flag is set to indicate a failure condition (step 1018) and the program terminates (step 1020).

If the resource configuration is successful (step 1052), it is determined whether there is an additional coded composite transmission channel in the current direction (downlink or uplink) to be checked. If there is an additional coded composite transmission channel to be examined, the next coded composite transmission channel (CCTrCH) is selected (step 1056) and the process continues at step 1038. If there is no additional coded composite transmission channel to be checked (step 1054), it is determined whether the uplink encoded composite transmission channel has been checked (step 1058). If the uplink encoded composite transmission channel has not been checked, the first uplink encoded composite transmission channel is selected (step 1060) and the process continues at step 1036. If all of the uplink encoded composite transmission channels have been considered (step 1058), then the program continues as in step 1026 above.

Then, the coded composite transmission channel (CCTrCH) information with the latest configuration entity channel information, dedicated channel information, uplink time slot interference signal coding power (ISCP) information and power control information is placed in the wireless link attachment response message ( In step 1028), the status flag is set to indicate a success condition (step 1030) and the program terminates (step 1020). The Coded Composite Transport Channel (CCTrCH) information includes Coded Synthetic Transport Channel (CCTrCH) identification and dedicated physical channel information. The dedicated physical channel information includes the time slot information table column, the repetition period and the repetition length. The dedicated physical channel time slot information includes the number of time slots, training sequence shift and burst type, transmission format coding indicator presentation and coding information list. The coding information includes channel coding and dedicated physical channel identification. The dedicated channel information includes multiple indicators and multiple selection indicators. The power control information includes the uplink target signal-to-interference ratio, the maximum uplink target signal-to-interference ratio, the minimum uplink target signal-to-interference ratio, the initial downlink transmission power, the maximum downlink transmission power, and the minimum downlink transmission power.

If the service type is non-instant (step 1040), the available time slot in the new cell is determined (step 1062). If no time slot is available in the new cell (step 1064), the status flag is set to indicate a failure condition (step 1018) and the program terminates (step 1020).

If there is a time slot available in the new cell (step 1064), then all data rates applicable to the coded composite transmission channel (CCTrCH) are retrieved from the radio resource management wireless transmit/receive unit (WTRU) database (step 1066), and The highest data rate is selected (step 1068). A coding set for the selected data rate is obtained (step 1070), and a general temporary dedicated channel for the present coded composite transmission channel (CCTrCH) is configured and recorded if the best solution is found (step 1072) . It should be noted that steps 1050 and 1072 are essentially the same; in non-instant service, the dedicated channel is temporary. If the resource configuration fails (step 1074), it is determined if there is an additional data rate to be checked (step 1076). If there are no other data rates to be checked, the status flag is set to indicate a failure condition (step 1018) and the program terminates (step 1020). If there are other data rates to be checked, the program continues as in step 1054 above.

It should be noted that any of steps 1034, 1058 and 1060 (lower or upper) may be performed first. As described above, the lower direction is checked in preference to the upper direction. If the uplink direction is checked in preference to the downstream direction, function 1000 will operate in the same manner.

Steps 1050 and 1072 are channel configuration functions for calling fast dynamic channel configuration calculations; this core function 300 is signal independent and operates in the same manner as the third a and b diagrams.

Call Forwarding Control (CAC) for Wireless Link Reconfiguration

An overview 1100 of the Fast Dynamic Channel Configuration Call Admission Control (CAC) program 1102 for wireless link reconfiguration is shown in FIG. The Fast Dynamic Channel Configuration Call Admission Control (CAC) control program 1102 includes three components: a pre-coding configuration process 1104, an encoding configuration process 1106, and a post-coding configuration process 1108. The pre-coding configuration process 1104 can retrieve wireless transmission/reception unit (WTRU) information from the wireless link reconfiguration preparation message 1110 and retrieve the wireless transmit/receive unit (WTRU) from the wireless resource management wireless transmit/receive unit (WTRU) database 1118. Performance information. The WTRU measurement and the Node B measurement are retrieved from the Radio Resource Control Shared Cell Library 1112. The available time slot list is obtained from the radio resource management cell database 1116 and the code group is retrieved from the operation and maintenance radio resource management table database 1114.

Encoding configuration process 1106 can examine the available codes in the cells, generate a sequence of time slots, find the best solution for the code group (assign the code in the code group to the available time slot, and encode from the radio resource management cell library 1116) The vector is configured with this centralized encoding). The post-coding configuration processing 1108 may update the encoding vector information in the radio resource management cell database 1116, record the configured physical channel in the radio resource management radio transmission/reception unit (WTRU) database 1118, and record the physical channel parameters and power. The control information is re-configured in the wireless link reconfiguration message 1120.

In addition to processing and data exchange between databases, data exchange also occurs directly between processing. WTRU measurement, Node B measurement, available time slot table in cell, code group list for specific data rate, and WTRU performance information, pre-coded Configuration process 1104 is passed to encoding configuration process 1106. The physical channel information (time slot table and channel code in each time slot) is transmitted from the code configuration process 1106 to the post-code configuration process 1108.

In the present invention, the function of the fast dynamic channel configuration call admission control (CAC) program 1102 for wireless link reconfiguration is modulated into two sets of functions: the input is a signal dependent function of the signal portion of the signal, and the input is independent of the signal message. Signal independent function. The purpose of separating the signal dependent function and the signal independent function is to increase the reusability of the signal independent function. The functions of the pre-encoding configuration processing 1104 and the post-coding configuration processing 1108 are signal dependent functions. In contrast, the functionality of the encoding configuration process 1106 is a signal independent function. It should be noted that the functionality of the code configuration process 1106 can be reused by other programs in other wireless resource management function implementations.

A flowchart of the Fast Dynamic Channel Configuration Call Admission Control (CAC) program function for wireless link reconfiguration is shown in Figures 12 and 13a-c. The twelfth figure shows the main interface program 1200 of the Fast Dynamic Channel Configuration Call Admission Control (CAC) of the Wireless Link Reconfiguration Procedure. The program 1200 begins by obtaining a wireless link reconfiguration preparation message (hereinafter referred to as "preparation message"; step 1202). The preparatory message consists of Coded Synthetic Transport Channel (CCTrCH) information (on the Coded Synthetic Transport Channel (CCTrCH) to be attached or modified), dedicated channel information (on the dedicated channel to be attached or modified), with or without wireless transmission / The wireless link information measured by the receiving unit (WTRU). The WTRU measurement system includes the downlink interference signal coding power and the received signal coding power of the downlink shared common control entity channel. The WTRU identification and the wireless link identification are retrieved from the prepared message, and the cell identification is retrieved from the WTRU library (step 1204). The entry identification system of the radio resource management cell database is then obtained (step 1206).

The data structure is established to locally store the measurements (step 1208). This measurement data structure is dynamically stored in the Fast Dynamic Channel Configuration Call Admission Control (CAC) function. It is established after the Fast Dynamic Channel Configuration Call Admission Control (CAC) function is called and is deleted when the Fast Dynamic Channel Configuration Call Admission Control (CAC) function is exited. The Node B measurement is then retrieved from the RRC shared cell repository and stored locally (step 1210). The Node B measurement includes a shared measurement and a dedicated measurement. The Node B measurement includes the uplink interference signal coding power and the downlink transmission carrier power. The Node B dedicated measurement includes the downlink transmission coding power.

The measurement data structure includes a cell measurement record list. The cell measurement record includes a cell identification and a time slot measurement record list. The time slot measurement record includes the number of time slots, time slot interference signal coding power (ISCP), time slot carrier power, and code measurement record table. The code measurement record includes WTRU identification, wireless link identification, dedicated physical channel identification, and coded transmission power.

If the WTRU measurement is included in the preliminary message (step 1212), the WTRU measurement is retrieved from the preliminary message and stored locally in the measurement data structure. (Step 1214). The physical channel is then configured to a coded composite transmission channel (CCTrCH) to be appended or modified (step 1216). Regardless of whether the coded composite transmission channel (CCTrCH) will be appended or modified, it should be noted that the code configuration procedure (step 1216) is the same. The code configuration program will be discussed in more detail in the thirteenth a-c diagram below. If the physical channel configuration is successful (step 1218), the status flag is set to indicate a success condition (step 1220) and the program terminates (step 1222). If the physical channel configuration is successful (step 1218), the status flag is set to indicate a success condition (step 1220) and the program terminates (step 1222).

If the WTRU measurement is not included in the preliminary message (step 1212), then it is determined whether all of the dedicated channels are non-instant (step 1226). If all of the dedicated channels are instant, the status flag is set to indicate a failure condition (step 1224) and the program terminates (step 1222). If all of the dedicated channels are non-instant (step 1228), the wireless link reconfiguration type is determined (step 1230). The wireless link configuration type is set based on the coded composite transmission channel (CCTrCH) in the wireless link. If the coded composite transmission channel (CCTrCH) is attached, the wireless link configuration type is set to "MODIFY".

If the wireless link configuration type is "MODIFY", then this is indicated as a failure condition, and the status flag is set to indicate a failure condition (step 1224) and the program terminates (step 1222). This failure condition indicates that there is not enough information to process the request as much as possible. A failure condition is reached when the wireless link configuration type is "MODIFY" and the wireless link reconfiguration message does not include wireless transmit/receive unit (WTRU) measurements.

If the wireless link reconfiguration type is "ADDITION", the low rate temporary dedicated channel is configured for the coded composite transmission channel to be attached (step 1232). The program continues as in step 1218 above.

The thirteenth a-c diagram shows the channel configuration procedure 1300 for use by the fast dynamic channel configuration call admission control (CAC) wireless link reconfiguration procedure 1200 step 1216. The process 1300 begins with obtaining a preliminary message (step 1302) and extracting wireless carrier/receive unit (WTRU) identification and wireless link identification from the preliminary message (step 1304).

The first downlink coded composite transmission channel is selected (step 1306) and the WTRU performance is retrieved from the WTRU library (step 1308). The service type of the selected coded composite transmission channel (CCTrCH) is obtained (step 1310), and if the service type is immediate (step 1312), the available available time slot for the cell is determined (step 1314). . If no time slot is available (step 1316), then this is indicated as a failure condition, and the status flag is set to indicate a failure condition (step 1318) and the program terminates (step 1322).

If there is a time slot available (step 1316), the block error rate (BLER) of the selected coded composite transmission channel is determined (step 1322) and the requested data rate is calculated (step 1324). The encoded set of calculated data rates is obtained (step 1326) and the physical channel (time slot and code) selected to encode the composite transmission channel is configured, and the best solution is recorded if found (step 1328). The configuration functions in step 1328 are discussed in more detail in Figures 3a and b above. If the resource configuration fails (step 1330), the status flag is set to indicate a failure condition (step 1318) and the function terminates (step 1320).

If the resource configuration is successful (step 1330), it is determined whether there is an additional coded composite transmission channel to be checked in the current direction (downlink or uplink) (step 1332). If there is an additional coded composite transmission channel to be examined, the next encoded intermediate transmission channel (CCTrCH) in the current direction (step 1334), and the process continues at step 1310. If there is no additional coded composite transmission channel to be checked, it is determined if the uplink encoded composite transmission channel has been checked (step 1336). If the uplink encoded composite transmission channel has not been checked, the first uplink encoded composite transmission channel is selected (step 1338) and the process continues at step 1308. If all uplink coded composite transmission channels have been considered (step 1336), the WTRU information and physical channel information are updated in a WTRU data base. And the code vector is updated in the radio resource management cell database (step 1340).

The updated WTRU information includes the uplink encoded composite transmission channel information (for the coded composite transmission channel (CCTrCH) to be attached or modified) and the downlink coded composite transmission with the latest configuration entity channel information. Channel information (for coded composite transmission channel (CCTrCH) to be attached or modified). The coded composite transmission channel information includes coded composite transmission channel (CCTrCH) identification, coded composite transmission channel (CCTrCH) state, coded composite transmission channel (CCTrCH) signal to interference ratio target, guaranteed data rate, allowed data rate, and dedicated physical channel. News. The dedicated entity channel information includes the dedicated physical channel time slot information table column, the repetition period and the repetition length. The dedicated physical channel time slot information includes the number of time slots, the training sequence shift and the burst type, the transmission format coding indicator presentation and the coding information list. The coding information includes channel coding, coding usage status, dedicated physical channel identification and coding signals to interfere with the target. The coding vector information includes uplink coding vector information and downlink coding vector information. The uplink coding vector information includes code identification, coding block indication and coding usage status. The downlink code vector information includes the code recognition and coding use status.

The physical channel information and power control information is then placed into the wireless link reconfiguration preparation message (step 1342), and the status flag is set to indicate successful resource configuration (step 1344) and the program terminates (step 1320). The physical channel information includes the time slot information table column, the repeat period and the repeat length. The time slot information includes the number of slots, the training sequence shift and the burst type, the transport format encoding indicator presentation and the encoded information table. The encoded information includes channel coding and dedicated physical channel identification. The power control information includes the initial downlink transmission power, the maximum downlink transmission power, the minimum downlink transmission power, the maximum uplink signal-to-interference ratio, and the minimum uplink signal-to-interference ratio. In one implementation of the present invention, a single data structure is used for request messages and response messages because the two messages contain a lot of shared information.

If the type of service selected to encode the composite transmission channel is non-instant (step 1312), the non-instant available time slot in the cell is determined (step 1346). If no time slot is available (step 1316), then this is indicated as a failure condition, and the status flag is set to indicate a failure condition (step 1318) and the program terminates (step 1322).

If there is a time slot available (step 1316), the block error rate (BLER) of the selected coded composite transmission channel is determined (step 1322) and the requested data rate is calculated (step 1324). The encoded set of calculated data rates is obtained (step 1326) and the physical channel (time slot and code) selected to encode the composite transmission channel is configured, and the best solution is recorded if found (step 1328). The configuration functions in step 1328 are discussed in more detail in Figures 3a and b above. If the resource configuration fails (step 1330), the status flag is set to indicate a failure condition (step 1318) and the function terminates (step 1320). If there is an available time slot (step 1348), the block error rate of the selected coded composite transmission channel is determined (step 1350). The data rate for all applicable non-immediate services is determined (step 1352) and the highest data rate is selected (step 1354). The encoded set of selected data rates is obtained (step 1356), the general temporary dedicated channel selected to encode the composite transmission channel is configured and the best solution is recorded if found (step 1358). It should be noted that steps 1328 and 1538 are essentially the same; in non-instant service, the dedicated channel is temporary.

If the resource configuration fails (step 1360), it is determined if there is an additional data rate to be checked (step 1362). If there are no other data rates to be checked, the status flag is set to indicate a failure condition (step 1318) and the program terminates (step 1320). If there are other data rates to be checked (step 1362), then the next highest data rate is selected (step 1364) and the process continues at step 1356. If the data configuration is successful (step 1360), the program continues as in step 1332 above.

It should be noted that steps 1306, 1336 and 1338, either in either direction (down or up) may be performed first. As described above, the lower direction is checked in preference to the upper direction. If the uplink is checked in preference to the next connection, the program 1300 will operate in the same manner.

Steps 1328 and 1358 are channel configuration functions for calling fast dynamic channel configuration calculus; this core function is signal independent and is illustrated in the above third a and b diagrams.

Although the preferred embodiment is illustrated in a Third Generation Partnership Project (3GPP) Wideband Code Division Multiple Access (W-CDMA) system using time division duplex mode, embodiments can be applied to any hybrid code division multiple memory. Take (CDMA) / Time Division Multiple Access (TDMA) communication system. In addition, certain embodiments of beamforming, such as the proposed frequency division duplex (FDD) mode, such as 3GPP W-CDMA, are generally applicable to code division multiple access systems. While the invention has been shown and described with reference to the embodiments of the embodiments The above description provides specific examples of inventions that are illustrative and not limited in any way.

CAC. . . Call admission control

WTRU. . . Wireless transmission/reception unit

RRC. . . Radio resource control

RAN. . . Wireless access network

RAB. . . Wireless access bearer

C-RNC. . . Control wireless network controller

TDD. . . Time division duplex

ISCP. . . Interference signal coding power

CCTrCH. . . Coded composite transmission channel

TFCI. . . Transport format coding indicator

The first picture shows an overview of the Fast Dynamic Channel Configuration Call Admission Control (CAC) calculus established by the wireless link.

The second a-c diagram is a flow chart of the fast dynamic channel configuration call admission control (CAC) calculation established by the wireless link shown in the first figure.

The third and third b diagrams are flow chart of the channel configuration function of the fast dynamic channel configuration call admission control (CAC) calculus shown in the second figure.

The fourth figure is an overview of the fast dynamic channel configuration escape procedure in accordance with the present invention.

The fifth and fifth b diagrams are flow charts of the fast dynamic channel configuration escape procedure shown in the fourth figure.

The sixth figure shows the first part of the flow chart configuration function flow chart of the fast dynamic channel configuration escape program shown in the fifth and fifth b-pictures.

The seventh figure is an overview of the background resolution reduction procedure for fast dynamic channel configuration in accordance with the present invention.

Figures 8a and 8b show a flow chart of the fast dynamic channel configuration background interference reduction procedure shown in the seventh figure.

The ninth diagram is an overview of a wireless link add-on fast dynamic channel configuration call admission control (CAC) procedure in accordance with the present invention.

The tenth a-c diagram is a flow chart of the fast dynamic channel configuration call admission control (CAC) program shown in the ninth figure.

Figure 11 is a diagram of a wireless link reconfiguration fast dynamic channel configuration call admission control (CAC) procedure in accordance with the present invention.

Figure 12 is a flow chart of the fast dynamic channel configuration call admission control (CAC) program shown in Figure 11.

The thirteenth a-c diagram is a flow chart of the physical channel configuration procedure of the fast dynamic channel configuration call admission control (CAC) program of the wireless link reconfiguration shown in FIG.

WTRU. . . Wireless transmission/reception unit

CCTrCH. . . Coded composite transmission channel

Claims (4)

A base station (BS) for implementing fast dynamic channel configuration (F-DCA) call admission control (CAC) configured to: perform a pre-coding configuration process, implement a signal independent coding configuration process, and implement a Post-coded configuration processing. The BS of claim 1, wherein the BS is configured to: receive and process a request message; and obtain an information and system measurement from a database. The BS of claim 1, wherein the BS is further configured to: check the availability of the code in a cell to generate one of available time slots. a time slot sequence assigning a code group to the available time slot in the time slot sequence, wherein a successful assignment is a solution, an interference signal coding power (ISCP) is calculated for each solution, and the selection has a lowest weighting This solution of the interfering signal coding power is used as an optimal solution. The BS of claim 1, wherein the BS is configured to: store a configuration information in a centralized database, and generate a response message.