TWI267275B - Method and system for integrating resource allocation between time division duplex and frequency division duplex in wireless communication systems - Google Patents

Abstract

The present invention integrates resource allocation between time division duplex (TDD) and frequency division duplex (FDD) in wireless communication systems. A radio network controller (RNC) receives a radio access bearer (RAB) request from a core network or a wireless receive/transmit unit. The RNC utilizes a TDD-FDD selector to assign radio resources in response to the request. The TDD-FDD selector evaluates various parameters regarding the received RAB request and determines whether it is preferable to assign TDD resources or FDD resources and whether such resources are currently available. Once resources are assigned, system conditions are evaluated to determine whether optimizations may be made to a current resource allocation.

Description

1267275

FIELD OF THE INVENTION The present invention relates to wireless communication systems. More particularly, the time division duplexing and frequency division duplexing integration in the present invention is well known in the art. In order to provide global connectivity to the system, standards are developed and implemented. Widely used, ^, the current standard is known as the Mobile Telecommunications Global System (GSM). This is considered to be the second-generation mobile wireless system standard (2G) and its revised version (2·5G). GPRS and EDGE are 2 · 5 G technologies that provide (2G) mobile telecommunications at the top of the high-speed data service. These standards are each looking for additional features and enhancements to improve previous technical standards. In January 1999, the European Telecommunications Standards Association-Special Action Group (ETSI-SMG) agreed to a wireless access plan for the third-generation wireless system known as the Full-Tech Mobile Telecommunications System (UMTS). The implementation of the Global Mobile Telecommunications System Standard, the Third Generation Partnership Project (3GPP) was formed in December 1999. The third-generation partnership program continues to be on the common third-generation mobile wireless standard. Α Also according to the current 3rd Generation Partnership Project Specification, the typical global mobile system architecture is depicted in Figure 1. The Global Mobile Telecommunications System Network Architecture 5 contains cores connected to the Global Mobile Telecommunications System Terrestrial Radio Access & Routing (UTRAN) via I u, which is known to be defined in detail in the current public third-generation partner specification. Network (c N ). Global Mobile Telecommunications System Terrestrial Radio Access Network is configured to provide wireless communication services via wireless interfaces known to Uu via wireless transmit receive units (WTRUs) known as User Equipment (UEs) in the 3rd Generation Partnership Project To the user. Global Action Electronics ^

1267275 V. INSTRUCTIONS (2^ -------------___ System on-Site Green - (RNCs) and i access networks have one or more wireless network controller platforms, basins Providing geographic coverage for the base letter iI collection of Node B (N 〇 de B s ) in the second generation partnership program, and the user equipment to do the wireless communication, the second node is connected to the J node B via the known third node. Wireless wireless network controllers in the partner program. Global mobile telecommunications system. The network can have several & 1 'connected to different wireless network controllers. In the example of Fig. 1, greater than _ network is available to the global mobile telecommunications system for terrestrial wireless access..., the communication between the line network controllers is implemented via the Iur interface. It is implemented by connecting the user level R of the Uu interface to the network level of the various core networks of the external system. The '''''''''''' The core network system receives the six main hangs of the Internet, such as the base of node B and access point. The main function of the platform is to provide a wireless connection between the base network and the wireless transmission receiving unit. Usually, the base transmits t, and the wireless transmission receiving unit and the base station synchronize the channel signal. In the third generation partnership plan, the node B performs and Use ^ actual wireless connection. Node B can receive the signal from the helmet controller on the Iub interface, which can control the information transmitted by the Node B in the "interface transmission, the network is responsible for transmitting information to its correct destination. For example, available The device transmits the voice traffic from the Global Mobile Telecommunications System to the Public Switched Telephone Network (PSTN) via Node B or is transmitted to the road. In the third generation wireless system, the core network has components. 1) Service General Packet Radio Service (GPRS) Support Section 1267275

Point; 2) Gateway General Seal Visitor Location Register Service Exchange Center. The service support node of the service network is the operator's network or network wireless service support node attack network is necessary, must provide services. Initially from the manageability department responsible for the global action # mobile service The connection requirements for the exchange & ° gateway service network. Packet wireless service support node; 5) mobile service switching service general packet wireless service access to the exchange domain. Gates Connect to other networks' gateways for data communication. The border gateway is used as a firewall for users. The current service for user data. The database of mobile users. The telecommunication system terminal to the network heart can be the user's current location, the switching center can also receive and; 3) the boundary gateway; 4) the heart; and 6) the gateway action support node can provide the pair, universal packet wireless service node. All go to it through the gateway universal packet to avoid being invaded by the Internet. The visitor location register, road, replica,. This is the mobile services exchange center, circuit switching,. Gate, basic implementation of transmission power management from the user to the external wireless network controller can roughly control the internal functions of the global line access network. The wireless network 拎 y f, the letter system landless connection and the node B do the regional components / also provide the connection between the core network and the external system via Uu. ^ Intermediary services, and the global mobile telecommunications system land wireless access network: service components, such as domestic calls. The sea that the mobile phone completes usually, the wireless network controller can monitor the wireless service coverage rate of the multi-point B service, the base station <’

The Uu interface controls the actual wireless resources. The third generation I \ wireless resources, and the controller's I u interface can provide the core network: ^ f system, wireless network < two connections: one for

Page 9 1267275 V. Description of invention (4) The field of packet switching and the other is for the field of circuit switching. Another important feature of wireless network controllers is confidential and complete protection. In the communication system of the third-generation partner program, the time division duplex and the frequency division duplex system, the multiple sharing and dedicated channels of the variable rate data are combined and transmitted. Background specific data for the system is publicly available and continues to be developed. Almost all wireless communication systems use two different channels for uplink and downlink services. In a time-sharing duplex system, the uplink and downlink channels exist in the same frequency band. The separation between the upper and lower channels occurs in the time domain. Therefore, for a particular frequency carrier, the particular link direction of the frequency carrier is dependent on whether the uplink or downlink traffic is currently being processed on the single frequency carrier and alternated between the uplink and the downlink. In contrast, in a frequency division duplex system, two frequency bands are used for uplink and downlink connections. Most systems, including traditional wireless phones, North American cellular radios, microwave point-to-point radios, and satellite systems, implement a frequency-division duplex system. Due to the development of wireless communication systems, the type of traffic carried in the system has evolved to include not only voice communications, but also various types of data communications. For example, multimedia data transmission systems on wireless communication systems typically generate asymmetric traffic loads between uplink and downlink connections. In addition, wireless users can increase the coverage area of the time-division duplex system and the frequency division duplex system. As is known to those skilled in the art, in a time-division duplex system, the number of uplink and downlink channels can be dynamically adjusted based on the traffic conditions at a particular time and place. Therefore, time-division duplex systems are better suited for handling asymmetric (or unbalanced) traffic with high data rates. However, the frequency division duplex system has a more time division duplex

Page 10 1267275 V. INSTRUCTIONS (5) The advantages of type $ is better because of the predetermined allocation of resources of the connected and connected resources. Therefore, the frequency division duplex system is more suitable for processing data with downward mitigation such as voice traffic. ^ Fixed data rate service. ^ The radio resource management between the duplex type system and the frequency division duplex system is individually implemented in each system type according to its self-allocation method. In addition to the potential optimization achieved by the time division duplexing and the frequency division duplexing in the wireless communication system, this security fj can be achieved. Therefore, it is necessary to integrate wireless resource management between duplex and frequency division duplex in the wireless communication system. SUMMARY OF THE INVENTION The present invention integrates the second/'s configuration of time division duplexing and frequency division duplexing in a wireless communication system. The radio network controller can receive radio access bearer (RAB) requirements from the core network or wireless access unit. The wireless network controller should use the ^time duplex-divider duplex selector to allocate wireless resources back and forth. The time division duplexing-frequency division duplex selector can evaluate various parameters related to the received no-work = take-over request, and decide whether to better allocate the time-sharing dual-capital i S'f frequency division duplex resource, and the resource Is it currently available? Once the source is configured, the system conditions are evaluated to determine whether the detailed description of the current embodiment of the vehicle can be used to illustrate the drawings. The receiving unit may include, but is not limited to, a user's wireless device, a mobile subscriber unit, a caller, or any other type of component that can be operated.

1267275 V. INSTRUCTIONS (6): Includes, but is not limited to, Node-B, address controller, access point, or other interconnected components in a wireless environment. Referring now to Figure 2, a wireless communication system 0 in accordance with the present invention is shown. The system 200 includes a time-division duplex radio network controller 2 〇 4, and a frequency division duplex radio network controller 2 被 8 that is connected to a core network 2 〇 2. Each line network controller 2 0 4, 2 0 8 controls at least one base station. For example, the network controller 2 0 4 controls the base station 2 1 2 . The base station 2 1 2 is provided by the culvert. . Cover_Zone 2 1 〇, which operates in the wireless coverage of the coverage area 2丨〇 το2 2 8, 2 3 0 can be from the time division duplex wireless network controller 2 〇 4 is two, Beiyuan . For example, the frequency division duplex wireless network controller 2 〇 8 can control the base station 216 of the field. Wireless transmission/reception unit IWt The knife-frequency duplex wireless network controller 2 0 8 is allocated resources. In the area 218, the wireless transmission/reception unit m and the original device are in service. For example, the overlap of area 218 covers the area, and the specific arrangement not shown in Figure 2 is only an example.荽..., line access bearer requirements (that is, call _ 言交立) you #, 豆 usually accompanied by 揾 # + t When the wireless network controller is transmitted, it has a pass and is available for the relevant The number of parameters is required to be transmitted. The inflammation I plus seven people 7 smashed the use of the shellfish to the degree of re-enactment (that is, is required to 'lean Dan is not limited to the ratio between the upper and lower chain, frame size, / / / /, nickname or Symmetrical state) 'Any kind of information transfer information provides information about the wireless network controllers that are required to be connected to the present invention. 2,04,8, respectively, are configured to time-sharing

Page 12 1267275 V. Description of the invention (7) Worker-divided duplex selector 2 0 6,210. Time-division duplexing-dividing duplexing 2 0 6,210 can be used as one or more processors to determine the received wireless access state, 1 technology type. That is, based on, for example, $2 related radio access bearer requirements, resource availability, and/or any of the parameters in the test, the time division duplex-divided duplex option 210 and its radio resources are included. The Manager (RRM) Wireless Network Control 7 II function works together to allocate resources so that the connection requirements can be assigned to the type of the most effective system technology type of the connection requirements. For example, the hypothesis is called the primary In consideration, the connection with symmetric traffic ^2 (that is, the similar traffic in the uplink and the downlink) is preferably implemented. ==Technical J and more efficient processing of the frequency division duplex of the service Wireless network control ^, 2 0 8 processing. Similarly, the connection with asymmetric traffic is also larger in the T direction. It is better to implement the time-sharing and double-rate processing of the time-sharing dual 4-wire network. For example, assume symmetry again. For the main considerations, the preferred technical type of wireless access bearer requirements, ^ replacement, work -, gossip break selector 2 0 6, 2 1 0 can be estimated by the receiver of the wireless access receiver The data rate in the lower chain. It is estimated that the upper and lower two chains are required to rate the current traffic situation. At present, J2 can be estimated based on his relevant parameters. Time-division duplexing ~ eight' s He Qi 2 0 6 ’ 2 1 0 can then compare the estimated difference between the upper and lower key knives. If it is estimated that the upper and lower chain U j II or ?

Page 13 1267275 V. Description of invention (8) Sexual symmetry state), and from time-sharing double can be assigned. If the estimated data rate is low, the resource requirement of the gateless network/control system/2〇4 can be considered symmetric (that is, the symmetric pair, ",, line access bearer duplex wireless network controller 2 〇8 resources can be assigned ^, and from the cheeks to be received by the wireless access bearer for its ~ best technology type •, including application type and capital; to ::: source can be alone or in combination with symmetry Evaluation. For example, a voice application transmitted by the = 2 system is better to use the connection ^ = instant 2 0 8 to provide the connection. Similarly, the voice application is required to be connected to the ^ line rain circuit controller It is better to use time-sharing; and the instant transmission provides connectivity. Usually, if the traffic and high data rate are very high, the duplex is better when it is called 2〇4. If the traffic is very low, the data rate is very high. Frequency duplexing is preferred, during which any transaction can be transmitted to the time-sharing double-j ^ frequency division duplex. For example, if time-sharing duplex congestion, the wireless access bearer can be assigned to the frequency division double regardless of other parameters. / Why should we pay attention to the radio access bearer requirements in this embodiment? Via the division of the wireless network controller 220 or the crossover duplex radio network controller 2〇8 H. In either case, the receiving wireless network controller can make a decision on the source allocation and if necessary The radio access bearer is required to be forwarded to another suitable radio network controller type. For example, the time division duplex wireless network controller 24 receives the radio network controller requirements and determines that it should use the crossover duplex type. The technician, the time-division duplex wireless network controller 2 〇4, transfers the request to the crossover duplex wireless network controller 2 丨8 via the 丨 interface. The frequency division duplex wireless network controller 2 0 8 continues Handle the request in the normal way.'

Page 14 1267275 DESCRIPTION OF THE INVENTION (9) At the same time, in the third embodiment, in another embodiment of the present invention, an integrated sub-block-frequency duplex wireless network controller 304 is provided. Integrated time-sharing duplex eight test Π Ϊ Ϊ network controller 3 〇 4 can integrate time-division duplex wireless network control 5 examples; network controller 2 〇 8 traditional functions. Therefore: the actual mid-time division time duplex • crossover duplex selector 3 0 6 is connected / ί crossover duplex selector 3 0 6 can be operated as above and can be determined at 1 o'clock. As above 9, when deciding which mode is suitable for special: J mode rate: use the Γ! duplex-divider duplex selector to evaluate the symmetrical assets of the sheep, application type, resource availability and any other phase transfer枓 catch = for the wireless transmit / receive unit 3 2 0 and 3 2 2 located in the union '. For example, the wireless transmitting/receiving units 3 2 0 and 3 2 2 can be allocated resources in the Weng area 324 mode or the frequency division duplex mode. k Backup Time Duplex Referring now to Figure 4, the division 4000 is shown in accordance with the present invention. When the radio access bearer request is received, the method of the resource is 4 0 2 . This requirement can be started by step-by-time duplex or frequency division method, integrated time-division duplex-divided duplex wireless network, and 2 network controllers. This requirement can be divided into duplex mode. Or the time-sharing controller is provided in step 404, and the parameter related to the received request is received. This parameter can then be used to provide an estimate of the received wireless access. As mentioned above, the parameters that are preferably evaluated include information on symmetry and data speed. Usually, in step 406, it is evaluated in Table 2 and the application type in step 4〇4. Whether based on the time division duplex type cell or the frequency division duplex class ^, it is determined whether the duplex mode or the frequency division duplex mode is processed by the t element (that is, time sharing, service. As described above,

Page 15 1267275 5 invention description (10) It is better to deal with high data rate asymmetric connections in time division duplex (that is, time division duplex cell), while symmetric low data rate is better processed in frequency division double In the work (that is, the crossover duplex cell). If it is determined that the requested service is better processed in the time division duplex cell, then the method 400 moves from step 4 0 6 to step 4 0 8 . In step 4〇8, it is determined whether the wireless transmission/reception unit requiring the radio access bearer is located in the time-sharing dual-worker. That is to say, although it has been decided in step 406 that time division duplexing is better, ==4 0 8 still confirms whether or not the time division duplex service is currently available. For example, =j receives the radio access bearer request to be operated in the time-division duplex cell, and the in-received order 70 is issued, and determines that the request should be processed in the time-sharing dual-storage i2 duplex service Obviously available. Then, the received wireless single-open request is required to be transmitted/received in the frequency division duplex cell and the request should be processed in the time-division duplex cell, then the frequency is The ί 2 duplex service handles the wireless transmit/receive unit from decibel = work to knife w duplex. Therefore, the WTRU determines the WTRU in sub-division J in the 睥俸 睥俸 士 士 4 4 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; , is required to be within 70 (that is, the helmet in the time division, * / pull) requires the service department to break the duplex cell provided in the frequency division double-worked cell) t, but the benefit is better The cell (that is, the service is divided into the frequency division duplex, /, the basin is fire, and the early 兀 will be provided that it is required to be the wireless transmission/reception unit positive, the access bearer request is required, and the operation is performed as early as possible. The system.

1267275 V. INSTRUCTION DESCRIPTION (H) Similarly, in step 406, it is determined that the requested service is preferably processed in the crossover duplex, and the method 400 proceeds from step 4〇6 to 412. In step 412, it is determined whether the benefit of the radio access bearer is that the transmitting unit is located in the frequency division duplex cell. That is to say: though, the steps are taken in 40 8 . ^ 'But /: Step 412 is to confirm the crossover duplex service directory ^ ^ 乂 by the 11 right received radio access bearer request is sent by the wireless transmit/receive unit operating in the split duplex cell, and decide This requirement should be handled in the crossover duplex cell's then the crossover duplex service is clearly available. However: the Z receiving radio access bearer request is sent by the WTRU operating in the time division duplex cell, and it is determined that the request should be processed in the frequency division duplex cell, then the present invention confirms the frequency division double The service is also available before the processing of the WTRU from frequency division duplex to time division duplex. Therefore, if it is determined in step 412 that the WTRU is in the frequency division duplex cell, then the requested service is provided in the frequency division duplex cell in step 414. However, if it is determined that the WTRU is not located in the frequency division duplex cell (that is, the time division duplex service is not available), then the required service is provided for wireless transmission/reception in the time division duplex cell. Unit (step 4 1 0 ). Note that in this case, although the WTRU is not served in the preferred cell (ie, the divided multiplex cell), benefit = f, the element will be provided that it is required to serve the time division duplex. In the case where 2 = bearer requirements are required, the WTRU is operating, and is responsible. The transmission/technology is as described in A. Once the service is provided to the wireless transmission in the special type of cell, the cell will be better for the WTRU.

Page 17 1267275 V. Description of invention (12) Cell or non-preferred cell. Therefore, once step 410 or 414 is taken, step 416 is performed. In step 416, 'there are: Ϊ Ϊΐ Ϊΐ; the evaluation determines whether any can be executed 1 = the sending/receiving unit is assigned to the time-division duplex cell receiving unit; the service provider, wireless transmission/connection * Frequency double-cell ΓΐΚ ί ί ί ί τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ τ Also, the next day, whether it is still a wireless transmission/reception unit is preferred. Although the initial evaluation can determine the time-sharing double: Preferably. Based on the being able to change, the frequency division duplex cell is moved to the other cell type second receiving unit slave-cell type 42. And the appropriate re-allocation of the target from the step to the step of 'the method 400 can return to the step wide /. Once the evaluation in step 416 is reassigned, the *object number finds the extra best & Based on the step and continue, then method 4. Straightening. Estimate existing connections to detect any possible best ^ In the reference to Figure #, in the time division duplex and the frequency division duplexing - the embodiment. This embodiment is a single connection to the core network! . =: The road controller is provided, but only the main type of technology in the system is provided in the core network and the type of the wireless network controller (that is, the subordinates) Page 18 1267275 V. Invention Description (13) 3 i-frequency duplex) between the wireless network controllers. That is to say, the day and the 柃 are mainly covered by the time division duplex of the main system type, and the + ^ 系 system is provided in the core network and the time division duplex wireless network controller. The invention is explained. The system shown in Fig. 5 is a frequency division duplex system with a wide coverage area of 550, wherein the frequency division duplex system is the main technical type. The frequency division duplex covers a number of hot spots 5 5 2,554,556,5 5 8 within 55〇. In system 500, all connections are divided by the duplex wireless network controller. The terminal is provided and connected to the core network 5 〇 2. Therefore, all of the above radio access bearer requirements are controlled by the crossover duplex wireless network, and are connected by the time division duplex-divider duplex selector. The selector 5 1 0 determines that the special request should be processed in the time division duplex and the time division duplex service is available (such as the wireless transmission/reception unit 5 24 ), and the connection is switched to the time division duplex wireless network control. The device is processed in the time division duplexing component of the system 5 (such as the wireless network controller 504, the base station 5 7 0, 5 7 2 ). That is to say, typical time-division duplex radio resource management can be used when the WTRU 52 operates in the time division duplexing of the system 5. Similarly, if the crossover duplex service is better or only the service is available, line resource management can be used. #叉" In order to initiate and end all traffic (time division duplexing and frequency division duplexing) via the above-mentioned frequency division duplex wireless network controller 5 〇8, additional functions are preferably provided for frequency division duplexing. The wireless network controller is 5 〇8. In the preferred embodiment, the frequency division duplex wireless network controller 5 〇 8 is configured as shown in FIG. The frequency division duplex wireless network controller 5 0 8 includes frequency division duplex radio resource management 6〇4 and

1267275 V. Description of invention (14)

It is usually configured to perform the Iu protocol 602, the frequency division duplex iub protocol 606, and the frequency division duplex Iur protocol 610. In addition, the frequency division duplex wireless network controller 508 includes time division duplex service radio network controller (S-RNC) radio resource management 608 and is configured to perform time division duplex iur protocol 610. Should pay attention to the additional functions added to the crossover duplex wireless network controller 508 (that is, time-division duplex wireless network controller radio resource management 608 and time-sharing duplex I ur protocol 6 1 〇) It is similar to the functions that have been implemented in a typical crossover duplex wireless network controller and can be added as a software upgrade. The time-division duplex radio network controller 504 is preferably configured to include a control radio network controller (c-RNC) time-division duplex radio resource management 61 and is typically further configured to support time-sharing dual Iub Agreement 614 and Time Division Duplex Iur Agreement 613. Configuring a wireless network controller such as the crossover duplex wireless network controller 508 allows the configuration of the time-division duplex wireless network controller 5 〇 4 to be simple and easy to assemble and inexpensive. In other words, it has a single I u connection between the core network 5 〇 2 and the frequency division duplex wireless network controller 5 〇 8 and does not require the time division duplex wireless network controller 504 to support the I u protocol. It is possible to quickly configure a time-division duplex network in a wider area division duplex network. In this embodiment, the time-division duplex wireless network controller 504 is never in the service wireless network controller mode and does not need to support the standard functions of the wireless network controller. That is, because the wireless transmitting/receiving unit in the system 5 〇 is always connected to the call, or medium=, it is forced to access the frequency division duplex wireless network controller 5 〇 8 as described above. In other words, ί e and e 存 & 取 取 control channel is only set up in the crossover duplex wireless network ^ 0 八 ^ when the wireless access bearer is divided into duplex - crossover duplex selection " knife - / knife Duplex time, such as wireless transmission/reception unit 5 2 4

1267275 V. INSTRUCTIONS (15) Wireless transmission/reception house _ ; + , # . t can be entered into the system 5 〇 0 points as soon as it is assigned to the system 5 duplex condition. Element 524 usually selects #八&德f and then wirelessly transmits/receives the simplex cell gate V Λ duplex covers the area and is processed in time-sharing double:Ϊ Whether the send/receive unit should be handed back Frequency duplex = network 2 to:: according to the standard time division duplex function is processed V when the dual device 510 to determine the decision is better by the time division duplex - frequency division duplex selection: 7 2 3: An alternative embodiment of the present invention includes a time division duplex-divided double 53⁄4 7 π η _α _ ^ ..., a line network controller 7 Ο 0 block diagram. The wireless network control multiplexer 710 enables the wireless network controller 70 to perform wireless resource management of the communication cutter and the frequency division duplex mode. For example, the thrifty dual-band crossover duplex selector 7 0 2 can be included in another entity, and the other two wireless network controller functional entities are buckled. The wireless network ^ can be a separate wireless network controller entity, or include, for example, a general-purpose network, a service line node (GSN), a wireless network controller, or a wireless network operator. Wireless network controller function. The first issue? The duplex-divided duplex selector 7 0 2 includes a handover unit 7 04 and a political 2 17 〇 6. The handover unit 7 〇 4 can be based on the output of the policy server 7 〇 6 to fix the day π duplex - crossover duplex handover and frequency division duplex - time division duplex handover. , the feeding machine 7 0 6 can receive the appropriate mode for the input of one or more policies and 疋关通#. One or more policies are defined for the time division duplex mode and the frequency division duplex mode. Wireless network I I preferably includes frequency division duplex radio resources

1267275 V. Invention Description (16) Start the crossover duplex/time division duplex handover. Typical policy items include: 1) Quality of Service (QoS); 2) Service; 3) Management; and 4) Behavior, but may include any additional items that are expected. The quality of service policy defines the quality of service conditions such as power or quality. Service policies define service characteristics such as data rate asymmetry or instant (RT) services (such as voice calls) versus non-immediate (NRT) services (such as web browsing). Management policy defines operations, management and maintenance (0A & M) conditions. This includes immediate policies that are applied for load balancing purposes, or non-immediate views on maintenance. Behavioral policies define one or more user behavioral conditions, such as user location or speed. The policy department is defined as part of the system configuration and can be independent or interdependent. For example, 'management policies take precedence over service quality or service policies. Relevant inputs for each policy are entered into the policy server. The input to the policy server is provided by the wireless network controller control logic, such as the external entity that operates the 'management and maintenance functions'. This policy can be defined or configured, and this service is required to be processed in a divided-duplex or time-sharing mode as expected. # 7 n Q When receiving a new call or handover request, Time Division Duplex-Frequency Duplex Selection = Requires the Policy Server to make a decision regarding the appropriate mode of communication. The -* crossover duplex selector 7 0 2 can be determined according to the policy server 7 0 6 to perform the selection of the appropriate mode of communication or the division between the frequency division duplex mode and the duplex mode. Fig. 1 is a flow chart for the time division duplex mode and the frequency division duplex mode pull = inter-connection processing according to the present invention. Initially, the WTRU establishes communication in the 疋 communication mode (step 8 〇 2). Wireless transmission/reception unit

1267275 V. INSTRUCTIONS (17) Next, specific services, such as web browsing (step 804), are required. The wireless network controller 700 then determines if one or more of the plurality of predetermined policies meets the service requirements such that a communication mode transition should occur (step 806). If one or more policies are met (eg, quality of service, location, speed, etc.), policy server 706 may indicate the communication mode in which the service should be recognized, and the wireless network controller 700 may follow the indication To perform the transfer of the communication mode (step 8000). If not, the wireless network controller 700 can maintain the current communication mode (step 81 0). For example, if the voice call arrives and the wireless transmit/receive unit is in the time division duplex mode, the relevant input related to each policy is Enter the policy server. If one or more of the policy conditions for the time division duplex to the frequency division duplex handover are satisfied, the policy server 706 may indicate that the transition to the time division duplex mode should occur, and the wireless network controller 7 0 0 can be transferred to the crossover duplex mode. It should be noted that although only one wireless network controller of each wireless network controller type (ie, frequency division duplex or time division duplex) is shown to illustrate the present invention, any time division duplex wireless network controller and points A frequency duplex wireless network controller can be provided. In this arrangement, wireless network controllers of the same type of communication typically use their individual I ur protocols. It should also be noted that the various individual or cluster functions and protocols described herein can be performed using any number of processors contemplated. It is important to note that the present invention can be practiced with any type of wireless communication system employing any type of time division duplexing technique or any type of frequency division duplexing technique. For example, the present invention can be implemented in a global mobile telecommunications system - time-sharing dual

Page 23 1267275 V. INSTRUCTIONS (18) Work, Global Mobile Telecommunications System - Divided Duplex, TDMA, TDS Code Multiple Access or any other similar type of wireless communication system. Furthermore, while the invention has been described in terms of various embodiments, those skilled in the art will

Page 24 1267275 Schematic description of the figure ^ Figure 1 is a diagram of a typical wireless communication system. Figure 2 is a diagram showing the time division duplex-divider duplex selector being provided with an eight-way and frequency division duplex type wireless network controller. Figure 3 is a diagram showing the timing of the time division duplex-divider duplex selector. The present invention is a method for allocating radio resources in accordance with the present invention. Example Figure 5 is a diagram showing a single I u connection between a time-division duplex and a frequency-division duplex service that can be bridged and divided by a duplex wireless network controller. This meal Figure 6 depicts the wireless network controller configuration 0 shown in Figure 5. Figure 7 is a block diagram of a wireless network controller including a time-division duplex-frequency duplexing switch with a policy server. ^ Figure 8 is a flow diagram of the handover process between communication modes, in which the wireless network controller is configured with a time-division duplex-divided 'duplex$ selector' of the policy server. Component symbol description: 2 0 0 Wireless communication system 2 0 2, 5 0 2 Core network 2 0 4, 5 0 4 Time division duplex wireless network controller 2 0 6, 2 1 0, 3 0 6, 5 1 0, 7 0 2 Time division duplex - frequency division duplex selector 2 0 8, 5 0 8 frequency division duplex wireless network controller 2 1 0, 2 1 4 coverage area 2 1 2, 2 1 6, 5 7 0, 5 7 2 base station 2 1 8 overlapping coverage areas 220, 222, 224, 226, 228, 230, 320, 322, 524 wireless transmission/reception unit

Page 25 1267275 Schematic description 3 0 4 Integrated time-division duplex-divided duplex wireless network controller 3 2 4 Joint coverage area 4 0 Method of allocating system resources 5 0 0 frequency division duplex system 5 5 0 Dividing duplex coverage area 5 5 2, 5 5 4, 5 5 6 , 5 5 8 Higher data rate hotspot 6 0 2 I u agreement 6 0 4, 7 0 8 Frequency division duplex radio resource manager 606 points Frequency Duplex I ub Protocol 608 Time Division Duplex Service Radio Network Controller (S-RNC) Radio Resource Manager 610 Time Division - Frequency Division Duplex Iur Protocol 612 Control Radio Network Controller (C-RNC) Time Division Duplex Radio Resource Manager 613 Time Division Duplex I ur Protocol 614 Time Division Duplex Iu b Protocol 700 Wireless Network Controller 704 Handover Unit 706 Policy Server 710 Time Division Duplex Radio Resource Manager

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Claims (1)

1267275 VI. Patent Application Area 1. A device for handover between time division duplex mode (TDD) and frequency division duplex mode (FDD) in a wireless communication system including a wireless transmit/receive unit (WTRU), The device comprises: a policy server that determines an appropriate communication mode based on a plurality of policy related inputs of the service request; and a handover unit that changes the time division duplex mode and the frequency division duplex mode according to one of the policy server outputs One of the communication modes. 2. The device of claim 1, wherein the policy-related input includes input of the quality of service required for the service request, input regarding specific conditions of the service request, input regarding the management of the wireless communication system, and The input of the wireless transmit/receive unit behavior. 3. If the device of claim 2 is applied for, the one or more policy-related inputs take precedence over other policy-related inputs. 4. The apparatus of claim 1, wherein the policy related input is provided by a general wireless network controller (R N C) control logic, a radio resource management function, or an external entity. 5. The device of claim 1, wherein the device is included in a separate wireless network controller. 6. The apparatus of claim 1, further comprising one of the radio resource managers configured to communicate in a frequency division duplex mode and a time division duplex mode. 7. A method for handover between a time division duplex mode and a frequency division duplex mode in a wireless communication system including a wireless transmit/receive unit, the method comprising: a time division duplex mode or a frequency division duplex Establish a connection in the mode; Page 27 1267275 VI. Scope of application for patents Receiving a service request; determining whether one or more policies meet the service requirements to transfer the communication mode; and performing a transfer from one current mode to another in accordance with the decision. 8. The method of claim 7, wherein the policy-related input includes input of quality of service required for the service request, input regarding specific conditions of the service request, input regarding management of the wireless communication system, and related The input of the wireless transmit/receive unit behavior. 9. As for the method of applying for patent scope 7, one or more of the policy-related inputs are prioritized over other policy-related inputs. Page 28