WO2009033343A1

WO2009033343A1 - A method used for cooperating the shared mbs wireless resource between the mbs zones with overlapped relation

Info

Publication number: WO2009033343A1
Application number: PCT/CN2007/003787
Authority: WO
Inventors: Jianquan Song; Ling Xu; Li Chu; Hongyun Qu; Tricci So; Sidong Cai; Cancan Huang; Nanjian Qian
Original assignee: Zte Corporation
Priority date: 2007-09-12
Filing date: 2007-12-25
Publication date: 2009-03-19
Also published as: CN101389071B; CN101389071A

Abstract

A method used for cooperating the shared multicast and broadcast service wireless resource between the multicast and broadcast service zones with overlapped relation is provided, which includes the following steps: the wireless resource managers are set separately for at least two multicast and broadcast service zones with overlapped relation; the resource synchronization between the wireless resource managers of at least two multicast and broadcast service zones is performed to realize the cooperating of the shared multicast and broadcast service wireless resource between at least two multicast and broadcast service zones with overlapped relation. The cooperating and managing of the shared MBS wireless resource between the MBS zones is realized through the present invention.

Description

MBS area with overlapping relationship

TECHNICAL FIELD The present invention relates to the field of communications, and in particular, to a method for coordinating radio resources of a shared multicast broadcast service between multicast broadcast service areas having overlapping relationships. BACKGROUND OF THE INVENTION In the IEEE 802.16e-2005 specification, two types of multicast and broadcast services (MBS) access are supported: one is a single base station (BS) accessing MBS, and the other is Multi-BS access MBS. MBS with multiple BS accesses must support macro diversity. In the MBS access of multiple BSs, a group of BSs having the same connection identifier (Connected Identifier) and security association (SA) is an MBS Zone (MBS Zone), and one BS can belong to Multiple MBS Zones; MBS Zone partitioning can take many forms. One BS can belong to multiple MBS Zones. There may be two MBS Zones that intersect or contain the 'I condition, that is, there is an MBS Zone with overlapping relationship. In the Worldwide Interoperability for Microwave Access (WiMAX) network, how to implement MBS radio resource allocation and management, and how to implement radio resource coordination management between MBS zones when there is a crossover or included MBS Zone, The Network Working Group (NWG) and the 802.16e specification are not mentioned. In particular, for a multicast broadcast service, a radio resource is allocated in a downlink subframe of Orthogonal Frequency Division Multiple Access (OFDMA) for multicast broadcast service, which is called MBS. Reserve resources. The MBS reserved resource can be described by two parameters, that is, the reserved MBS resource occupies the area occupied by the downlink subframe, and the reserved MBS resource occupies the number of subframes. For MBS Zones with overlapping relationships (that is, when one base station belongs to multiple MBS Zones), if you want to ensure that each MBS Zone can independently schedule reserved MBS resources, you need to reserve MBS resources for multiple MBS Zones. Can not overlap. If the area occupied by each MBS reserved resource in the downlink subframe does not overlap, or the number of occupied subframes does not overlap (for example, one BS belongs to two MBS Zones, one MBS Zone may occupy only odd frames, and the other only The occupation of even frames) ensures that the resources reserved for each MBS Zone do not overlap in this case. If the MBS resources reserved by multiple MBS Zones overlap (or are identical), the MBS resource scheduler between multiple MBS Zones needs to be scheduled. Coordination. In order to improve the efficiency of radio resource utilization, MBS Zones with overlapping relationships will share the reserved MBS resources, that is, the MBS resources they reserve have overlapping relationships, so it is necessary to consider how to implement the radio resources shared by them in this case. Coordinate management to explore. SUMMARY OF THE INVENTION In view of one or more of the problems described above, the present invention provides a method for coordinating a shared multicast broadcast service radio resource between multicast broadcast service areas having overlapping relationships. A method for coordinating radio resources of a shared multicast broadcast service between multicast broadcast service areas having an overlapping relationship according to the present invention includes the following steps: respectively setting radio resource management for at least two multicast broadcast service areas having overlapping relationships Coordination of shared multicast broadcast service radio resources between at least two multicast broadcast service areas having overlapping relationships by resource synchronization between radio resource managers of at least two multicast broadcast service areas. When the radio resource manager A of the radio resource manager of the at least two multicast broadcast service areas allocates the multicast broadcast service radio resource for the new multicast broadcast service program, the process of resource coordination by resource synchronization includes The following steps: the radio resource manager A sends a multicast broadcast service radio resource reservation report message to other radio resource managers to report the reserved multicast broadcast service radio resources to other radio resource managers; if other radio resource management The device also needs to use the reserved multicast radio service radio resource, and judges whether the reserved multicast broadcast service radio resource is used by the radio resource manager A according to the preset policy. If the judgment result is yes, the radio resource manager is used. A returns a multicast resource reservation radio resource reservation report acknowledgement message carrying the reservation success indication, and returns to the radio resource manager A a multicast broadcast service radio resource reservation report acknowledgement message carrying the reservation failure indication. The multicast broadcast service radio resource reservation report message may include a resource tag of the reserved multicast broadcast service radio resource. When the radio resource manager A allocates the multicast broadcast service radio resource for the newly added multi-set multicast service program, the multicast broadcast service radio resource reservation report message may include the program mark and corresponding of each set of the multicast broadcast service program. Reserved resource tag for the show. The multicast broadcast service radio resource reservation report message may further include program priority information and information on whether or not the multicast broadcast service radio resource reserved for each set of multicast broadcast service programs is bound. The other radio resource manager may determine whether the reserved multicast service radio resource is used by the radio resource manager A based on the program priority information. If the multicast broadcast service radio resource reservation report message includes each set of multicast broadcast service programs The program tag and the reserved resource tag of the corresponding program, the multicast broadcast service radio resource reservation report acknowledgement message includes a tag of the resource reservation success program or a tag of the resource reservation failure program, or includes each set of multicast broadcast service program The tag of the program and the mark of its resource reservation success or failure. If the resources are successfully reserved for each set of multicast broadcast service programs, the multicast broadcast service radio resource reservation report acknowledgement message includes a reservation success indication, and if resources are reserved for each set of multicast broadcast service programs, Then, the multicast broadcast service radio resource reservation report acknowledgement message includes a reservation failure indication. If the multicast broadcast service radio resources reserved for each set of multicast broadcast service programs are bundled, as long as the resource reservation of one of the multicast broadcast service programs fails, the other radio resource managers manage the radio resources. The device A returns a multicast broadcast service radio resource reservation report acknowledgement message carrying a reservation failure indication. When the radio resource manager A of the radio resource manager of the at least two multicast broadcast service areas releases the radio resource of the multicast broadcast service of the multicast broadcast service program, the process of resource coordination by resource synchronization includes the following steps: The radio resource manager A sends a multicast broadcast service radio resource release report message to other radio resource managers to report the released multicast broadcast service radio resources to other radio resource managers; the multicast resources that other radio resource managers will release The broadcast service radio resource is marked as available. The multicast broadcast service radio resource release message may include a program tag of the released multicast broadcast service program, or a resource tag of the multicast broadcast service radio resource including the released multicast broadcast service program, or include unreleased The target of the multicast broadcast service program is i. Wherein, when one of the radio resource managers of the at least two multicast broadcast service areas actively or periodically requests resource synchronization from other radio resource managers, the resource coordination process is performed by resource synchronization. The following steps: the radio resource manager A sends a multicast broadcast service radio resource information response message to other radio resource managers to report the radio resource usage of the multicast broadcast service to other radio resource managers; other radio resource managers The radio resource manager A returns a multicast broadcast service radio resource information response confirmation message to confirm to the radio resource manager A that it has received. The multicast broadcast service radio resource information response message may include a resource tag of the multicast broadcast service radio resource that the radio resource manager A has currently allocated and used, or a program tag that includes the radio resource of the multicast broadcast service and its corresponding Resource tag. Another method for coordinating radio resources of a shared multicast broadcast service between multicast broadcast service areas having overlapping relationships according to the present invention includes the following steps: selecting does not belong to any overlapping a radio resource manager of an independent entity of a multicast broadcast service area or one of at least two multicast broadcast service areas having an overlapping relationship as a primary radio resource manager, and a radio resource manager of other multicast broadcast service areas As a slave radio resource manager; coordinated management of shared multicast broadcast service radio resources between at least two multicast broadcast service areas having overlapping relationships by the primary radio resource manager. The process of resource coordination by the primary radio resource manager includes the following steps when a new multicast broadcast service program needs to allocate a multicast broadcast service radio resource from a multicast broadcast service area under the jurisdiction of the radio resource manager: Transmitting a multicast broadcast service radio resource allocation request message from the radio resource manager to the main radio resource manager to request the main radio resource manager to allocate a multicast broadcast service radio resource for the multicast broadcast service program; the main radio resource manager responds to The multicast broadcast service radio resource is allocated for the multicast broadcast service program from the request of the radio resource manager, and the resource allocation result is carried to the slave radio resource manager through the multicast broadcast service radio resource allocation response message. The multicast broadcast service radio resource allocation request message may include QoS information such as bandwidth and duration of the multicast broadcast service program. If multiple sets of multicast broadcast service programs are added from the multicast broadcast service area under the jurisdiction of the radio resource manager, the multicast broadcast service radio resource allocation request message may include program marks of each set of multicast broadcast service programs, and program bandwidth. And duration information. The multicast broadcast service radio resource allocation request message may further include program priority information and information on whether or not the multicast broadcast service radio resource reserved for each set of multicast broadcast service programs is bound. The multicast broadcast service radio resource allocation response message may include a program tag of each set of multicast broadcast service programs, a flag indicating whether each program resource reservation is successful, and a reserved resource tag of a program whose resource reservation is successful. If the resources are successfully reserved for each set of multicast broadcast service programs, the multicast broadcast service radio resource allocation response message includes a reservation success indication, and if resources are reserved for each set of multicast broadcast service programs, The broadcast broadcast service radio resource allocation response message includes a reservation failure indication. If the radio resources of the multicast broadcast service reserved for each set of multicast broadcast service programs are bundled, as long as the resource reservation of one of the multicast broadcast service programs fails, the resource manager A is returned with one. The multicast broadcast service radio resource allocation response message indicating the failure indication is reserved. Wherein, when the multicast broadcast service radio resource of the multicast broadcast service program is released from the radio resource manager, the process of resource coordination by the main radio resource manager includes the following steps: sending from the radio resource manager to the main radio resource manager a multicast broadcast service radio resource release report message to request the primary radio resource manager to mark the released multicast broadcast service radio resource as available; the master radio resource manager responds to the request from the radio resource manager, the slave radio resource Manager release The multicast broadcast service radio resource is marked as available, and is notified from the radio resource manager by the multicast broadcast service radio resource release report acknowledgement message. The multicast broadcast service radio resource release report acknowledgement message may include a program tag of the released multicast broadcast service program, or a resource tag of the multicast broadcast service radio resource including the released multicast broadcast service program, or include The program tag of the released multicast broadcast service program. Through the present invention, coordinated management of radio resources between MBS Zones can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: Figure 1 is a schematic diagram of the distribution of MBS Zones with and including the relationship; Figure 2 is a schematic diagram of resource synchronization between MBS radio resource managers between different MBS Zones when allocating resources; Figure 3 is a diagram of different MBS Zones Schematic diagram of resource synchronization initiated by the MBS radio resource manager; FIG. 4 is a schematic diagram of resource synchronization from the MBS radio resource manager and the main MBS radio resource manager when allocating resources; FIG. 5 is a radio resource management from MBS when releasing resources Schematic diagram of resource synchronization between the primary MBS radio resource manager and FIG. 6 is a schematic diagram of dividing radio resources for MBS in the next 4 subframes. For a single-frequency network (Single Frequency Network, SFN for short), a part of the radio resources are extracted from the radio resources of the downlink subframe for MBS access (as shown in FIG. 6), and the MBS is used. The Zone manages the radio resources used for the MBS in a unified manner, that is, there is one MBS radio resource manager for each MBS zone, which is used to uniformly manage the MBS radio resources in the MBS Zone. For the case where there is overlap of MBS Zone, There are two MBS Zone MBS radio resource managers how to share this part of the MBS radio resources used for MBS access. The present invention proposes two methods to solve the problem of resource coordination management between such overlapping MBS zones. Method 1: The radio resource managers (A and B, respectively) of the two MBS Zones with overlapping relationship realize coordinated management of the shared MBS radio resources by MBS radio resource synchronization. The management of MBS radio resources by MBS Radio Resource Manager A is done by the acknowledgment of Radio Resource Manager B. Among them, the following situations will trigger the synchronization between the MBS radio resource managers of two MBS Zones:

1) The MBS Radio Resource Manager of an MBS Zone reserves, allocates, or deletes resources. 2) Timing cycle synchronization.

3) Proactive request. The MBS radio resource manager of an MBS Zone can actively request the MBS radio resource manager of the MBS Zone with its overlapping relationship to obtain the occupancy of the MBS radio resource of the other party. In order to reduce the synchronization frequency between the MBS radio resource managers in the case 1), the following measures can be taken:

1) For real-time MBS services with fixed bandwidth requirements and duration, the radio resources required by the service can be allocated at one time. 2) For short, bursty MBS services, a part of the radio resources may be reserved for the MBS radio resource manager of each MBS Zone, and the short, bursty service resources may directly use the reserved for the MBS Zone. Part of the wireless resources, so for short, bursty traffic can avoid synchronization.

3) If the short, burst MBS service does not use the MBS radio resource reservation mode and the resource synchronization mode is adopted, if the first MBS radio resource is successfully allocated, and the service transmission is completed, the part of the radio resource is not immediately set to Idle synchronization to the MBS radio resource manager of other MBS Zones with overlapping relationship, but wait until the preset timer expires; if there is a new short burst before the preset timer expires Business, you can still use this part Divide the wireless resources and reset the timer. The process of allocating radio resources for adding MBS programs includes the following steps: After one of the radio resource managers A reserves radio resources for the MBS program added by the MBS zone under its jurisdiction, it needs to go to another radio resource manager. B sends an MBS radio resource reservation 4 message, and 4 advertises the MBS radio resource it reserves. After receiving the message, the radio resource manager B processes the case. Case 1: If B does not currently use the reserved resource, the MBS radio resource reservation report acknowledgement message sent back to A is accompanied by a successful indication. Case 2: If B needs to use the reserved resource, it needs to pre-configure the policy to decide whether the reserved resource is used by A or B. If the result of the decision is that the reserved resource is used by A, then A is given. The returned MBS radio resource reservation 4 acknowledgment message carries a success indication; if the result of the decision is that the reserved resource is used by B, the MBS radio resource reservation report acknowledgement message with A fails with a failure Instructions. After the radio resource manager A receives the MBS radio resource reservation report acknowledgement message, it is processed according to the indication bit. If the indication is successful, it indicates that the resource is reserved for the new MBS program. If the indication bit is failed, it indicates that the resource reservation failed. If there are still remaining MBS radio resources available, then Radio Resource Manager A can repeat the above process.

The MBS radio resource reservation message can be in the following ways. Mode 1 , contains the total reserved MBS resource identifier. Mode 2: If resources are reserved for multiple sets of programs, the MBS Radio Resource Reservation Report message may include a program tag and a corresponding program reserved resource indication. Mode 3: In order to facilitate the processing when the MBS radio resources of the MBS Zone with overlapping relationship collide, the MBS radio resource reservation report message may include a program tag, a program priority, and a reserved resource indication of the corresponding program. Mode 4: If resources are reserved for multiple sets of programs, the MBS Radio Resource Reservation Report message may contain a flag for whether resources are reserved for multiple sets of programs.

The MBS Wireless Resource Reserve 4 can confirm the message in the following ways. The mode 1 includes the confirmation result indication, and the confirmation result is success or failure. If the reserved resource conflicts, the radio resource manager B can use the program priority in the MBS radio resource allocation message to determine whether the reserved resource is successful. . Mode 2, if the MBS radio resource reservation report message includes multiple sets of program tags and reserved resource tags of corresponding programs, the MBS radio resource reservation 4 report confirmation message may only include the resource reservation success program tag or the resource reservation failure. The tag of the program, or a tag containing each program tag in the MBS Resource Reservation Report message and its success or failure. Mode 3, such as If the MBS radio resource reservation report message contains multiple sets of program tags and the reserved resource label of the corresponding program, if all the program resources are reserved for confirmation, the MBS radio resource reservation 4 confirmation message is only An acknowledgment success indication is required. If all the program resources have all the reservation confirmation failures, the MBS radio resource reservation report acknowledgement message only needs one confirmation failure indication. Mode 4, if the MBS radio resource reservation report message reserves resources for multiple sets of programs. The MBS radio resource reservation report message carries an acknowledgement failure indication. If the program resource is bound, the MBS radio resource reservation report message carries an acknowledgement failure indication. After the acknowledgment message, if the acknowledgment result is a failure, the resource needs to be re-reserved; if only part of the program resource reservation fails, and the program resource does not need to be bound, only the resource needs to be reserved for the failed program again. In the resource reservation report message, the reserved MBS resource tag can have multiple representations. After successful, the MBS radio resource manager will notify the MBS service framing function module in the MBS Zone by the 4 bar resource reservation result. The synchronization process when releasing the MBS program resource is as follows: When one of the radio resource managers A After the normal MBS program resources of the MBS Zone are released, the radio resource manager A does not need to mark the resources of the MBS radio resources released by the B. However, after the MBS program resources of the MBS Zone under the jurisdiction of A are released in advance, the MBS needs to be sent to the B. The radio resource release report message reports the MBS resource tag it has released.

The MBS radio resource manager B receives the resource tag of the released MBS radio resource in the MBS radio resource allocation report message, and considers that the radio resource is currently usable. At the same time, the MBS radio resource manager A returns the MBS radio resource 4 advertisement confirmation message. The MBS radio resource release report message should at least contain information about the currently released MBS radio resource. There are many ways to release information about MBS radio resources. Method 1: The release program tag is directly used, and the MBS radio resource allocation report message includes the program tag and the reserved resource of the corresponding program. After receiving the release program tag, the MBS radio resource manager knows that the corresponding MBS radio resource has been freed. Method 2: Directly carry the released MBS resource tag. Mode 3: The mark of the current existing MBS program, the program mark that does not appear means that it needs to be released. If it is all released, the number of existing MBS section targets is zero. The process of actively requesting MBS wireless resource synchronization is as follows: The MBS radio resource manager A sends an MBS radio resource information request message to the MBS radio resource manager B, and the request B reports the resource information of the MBS radio resource that it currently occupies.

The MBS Radio Resource Manager B sends an MBS Radio Resource Information Response message to the MBS Radio Resource Manager A. MBS Radio Resource Manager A returns MBS radio resource information response confirmation message to MBS Radio Resource Manager B. The MBS radio resource information response message shall at least contain the resource label of the MBS radio resource that the MBS radio resource manager has allocated and is currently using, or the program tag of each program and the corresponding resource label. Timing cycle synchronization means that the MBS radio resource manager actively has an overlapping relationship with it.

The MBS Zone synchronizes its own MBS radio resources. The process by which MBS Radio Resource Manager A actively reports its current MBS radio resource occupancy information to MBS Radio Resource Manager B with its overlapping relationship is as follows:

MBS Radio Resource Manager A sends an MBS radio resource information response message to MBS Radio Resource Manager B.

The MBS Radio Resource Manager B returns an MBS Radio Resource Information Response Acknowledgement message to the MBS Radio Resource Manager A. The MBS radio resource information response message should at least include a resource tag of the MBS radio resource that the MBS radio resource manager has allocated and is currently using, or a program tag containing each program and a corresponding resource tag. Resource synchronization in each of the above cases is illustrated by taking two MBS Zones with overlapping relationships as an example. In fact, during synchronization, the MBS Radio Resource Manager synchronizes with the MBS Radio Resource Managers of all MBS Zones that have an overlapping relationship with the MBS Zone in which they are located. Method 2: Select one of the two MBS Zone radio resource managers (with A and B respectively) with overlapping relationship as the primary MBS radio resource manager, and the rest is the slave MBS radio resource manager. It is also possible to select a pair of independent entities that do not belong to any multicast broadcast service area with overlapping relationships as the primary radio resource manager. The management of MBS radio resources is done on the main MBS radio resource manager. The management of MBS radio resources from the MBS radio resource manager is completed by the main MBS radio resource manager. Pre-required from MBS Wireless Explorer When the MBS radio resource is reserved or allocated, it is completed by applying to the primary MBS radio resource manager; when the MBS radio resource is released from the MBS radio resource manager, the main MBS radio resource manager is also notified. The following situations will trigger the sending of messages from the MBS Radio Resource Manager to the primary MBS radio resource management:

1) There are new programs in the MBS Zone under the MBS Wireless Resource Manager that need to allocate wireless resources.

2) After releasing the MBS program resources from the MBS Zone under the MBS Wireless Resource Manager. In order to reduce the synchronization frequency between the master and slave MBS radio resource managers, the following three methods can be used:

1) For real-time MBS services with fixed bandwidth requirements and duration, the primary MBS radio resource manager can allocate the radio resources required by the service at one time.

2) For short, bursty traffic, a portion of the radio resources may be reserved for each slave MBS radio resource manager, such that short, bursty radio resources may be allocated directly from the MBS radio resource manager. Part of the radio resources, therefore, for short, bursty traffic can avoid frequent requesting resource allocation to the primary MBS radio resource manager.

3) If the short, bursty service does not use the reserved resources, but also adopts the primary MBS radio resource manager allocation mode, after the MBS radio resource allocation is successful, the short, burst MBS service is transmitted, and the MBS radio resource management is completed. The device does not immediately set the radio resource to the idle report to the primary MBS radio resource manager, but waits until a preset timer expires; if there is a new short before the preset timer expires For the bursty MBS service, you can still use this part of the radio resources and reset the timer. When the MBS radio resource manager allocates radio resources for the newly added programs in the MBS Zone under its jurisdiction, the method includes the following steps: Send an MBS radio resource allocation request message from the MBS radio resource manager to the main MBS radio resource manager. After receiving the MBS radio resource allocation request message sent from the MBS radio resource manager, the primary MBS radio resource manager allocates radio resources for the requested program; and allocates radio resource results The MBS radio resource allocation response message is brought to the slave MBS radio resource manager. After receiving the MBS radio resource allocation response message from the MBS radio resource manager, the primary MBS radio resource manager returns an MBS radio resource allocation response confirmation message. The MBS radio resource allocation request message can be in two ways. Mode 1 is for the total bandwidth and duration of all programs requested. The mode 1 message must contain the total bandwidth and duration. Mode 2 is for the bandwidth and duration required to request each program, so Mode 2 includes at least the program mark of each program, and the bandwidth and duration of each program. Mode 2 can also increase the program priority level and each Whether the wireless resource allocated by the program is bound to the tag. The MBS radio resource request message adopts mode 1. The MBS radio resource allocation response message should have at least the allocation result label, and the allocation result is successful or failed. If the allocation result is successful, the allocated resource tag needs to be carried. For request mode 2, the MBS radio resource allocation response message has the following manner. Mode 1, for a plurality of sets of programs, the response message includes the target of the node and whether the resource allocation is successful. If the program is successfully allocated, the resource tag of the MBS radio resource allocated for the program is also carried. Mode 2, if multiple sets of program allocation program resources all fail, it is also possible to use a total failure to mark the self without marking the failure for each program. Mode 3, if multiple sets of program distribution program resources are all successful, you can also use a total success to mark the self, and then bring the MBS resource tag assigned to all programs. Mode 4, for multiple sets of programs and requests with program binding tags, only one total tag can be used to indicate whether the resource allocation is successful; only all program resources are allocated successfully, with an allocation success flag; If the resource allocation is unsuccessful, the resource allocation failure flag is marked; if all the program resources are successfully allocated, the total MBS resource tag may be allocated for all programs, or the program tag and its assigned corresponding MBS wireless may be used. The resource tag of the resource is represented. When the radio resource is released from the MBS radio resource manager, the following steps are included: The MBS radio resource release report message is sent from the MBS radio resource manager to the main MBS radio resource manager. After the primary MBS radio resource manager receives the MBS radio resource release report message, the tag release MBS radio resource is now available, and at the same time, the MBS radio resource manager returns an MBS radio resource release report acknowledgement message. The MBS radio resource release report message shall include at least the currently released MBS radio resource information. There are many ways to release MBS radio resource information. Mode 1, direct release of the program tag, because the primary MBS radio resource manager knows the resource information it has allocated for the program. Mode 2, directly carrying the released MBS resource tag. Mode 3, the program mark of the current existing MBS program, then the program mark that does not appear means that it needs to be released. If all is released, the number of existing MBS program marks is zero. Regardless of the method or method 2, the MBS radio resource manager can be located at the BS or the gateway of the access service network (ASN) according to the architecture determined by MBS (Multicast and Broadcast Service, MBS for short). Gateway, referred to as AGW). In addition, MBS radio resource managers of two MBS Zones with overlapping relationships may reside on the same entity or may reside on different entities; if they reside on the same entity, they may be The MBS Radio Resource Manager manages MBS radio resources of MBS Zones with overlapping relationships, and does not involve the synchronization process. In each MBS Zone, in addition to the MBS radio resource manager responsible for MBS radio resource management (herein referred to as the home MBS radio resource manager), there is also a relay MBS radio resource manager. When the synchronization message between the two MBS radio resource managers cannot be directly reached, the MBS radio resource manager relay synchronization message needs to be relayed. That is to say, when the method is used, the MBS radio resource coordination management between the MBS zones with overlapping relationship is realized by the respective home MBS radio resource managers; when the method 2 is used, the MBS radio resource coordination management between the MBS zones with overlapping relationships is adopted. It is implemented by the master-slave home MBS wireless resource manager. Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Figure 1 is a schematic diagram of the distribution of MBS Zones with inclusion and crossover relationships. If Method 1 is used, for each MBS Zone, you need to find the MBS Zone with overlapping relationship. These MBS Zones are all MBS Zones to be synchronized with it. For example, MBS Zonel in the figure has overlapping relationship with it. The MBS Zone has MBS Zone2, MBS Zone3, and MBS Zone4, so MBS Zonel's MBS Wireless Resource Manager is synchronized with MBS Zone2, MBS Zone3, and MBS Zone4's MBS Radio Resource Manager. Similarly, the MBS Wireless Resource Manager of MBS Zone2 needs to be synchronized with the MBS Radio Resource Manager of MBS Zonel and MBS Zone3; the MBS Radio Resource Manager of MBS Zone3 needs to be synchronized with the MBS Radio Resource Manager of MBS Zonel and MBS Zone2. MBS Zone4's MBS Radio Resource Manager needs to be synchronized with MBS Zonel's MBS Radio Resource Manager. If you use method two, you also need to find overlap with each MBS Zone. The MBS Zone of the relationship, then determine a primary MBS radio resource manager from their MBS radio resource manager, the rest is from the MBS radio resource manager, and then by the main MBS radio resource manager for these overlapping MBS zones Unified management of MBS wireless resources. Referring to FIG. 2, the synchronization process between the MBS radio resource manager of the MBS Zonel and the MBS radio resource manager of the MBS Zone2 when the resource is allocated will be described. As shown in Figure 2, the process includes the following steps:

S202, MBS Zone2 MBS Wireless Resource Manager allocates radio resources for new programs when new programs are added in the MBS Zone2 range.

S204, MBS Zone 2 MBS Radio Resource Manager sends an MBS Radio Resource Reservation Report message to MBS Zonel's MBS Wireless Resource Manager and opens the timer TMRRpt.

S206, MBS Zonel MBS radio resource manager goes to the MBS radio resource reservation report message sent by the MBS radio resource manager of MBS Zone2, and performs corresponding processing (for example, recording MBS Zone2 current MBS program and occupying resource information, if Conflicts occur when MBS resources conflict.) S208, the MBS radio resource manager of the MBS Zonel sends an MBS radio resource reservation acknowledgement message to the MBS radio resource manager of the MBS Zone2; the MBS radio resource manager of the MBS Zone2 receives the MBS radio resource reservation report acknowledgement message, and then closes Timer TMRRpt.

S210, MBS Zone 2 MBS Radio Resource Manager receives the MBS radio resource reservation report confirmation message in the reservation report confirmation message. In S210, if the resource reservation confirmation result is a failure, the resource needs to be re-reserved, and the above steps S202 to S210 are repeated. Referring to FIG. 3, the MBS radio resource manager of the MBS Zone2 actively requests the MBS radio resource manager of the MBS Zonel. The process of actively taking over the MBS radio resource occupancy situation is illustrated. As shown in FIG. 3, the process includes the following steps: S302, MBS Zone2 MBS radio resource manager sends MBS radio resources to MBS Zonel MBS radio resource manager. Information request message.

S304: After receiving the message, the MBS radio resource manager of the MBS Zone 1 sends back an MBS radio resource information response message. Referring to FIG. 4, a description will be given of a synchronization process between a primary MBS radio resource manager and an MBS radio resource manager when resources are allocated. As shown in Figure 4, the process includes the following steps:

S402, when there is a new MBS program, send an MBS radio resource allocation request message from the MBS radio resource manager (located in MBS Zone2) to the main MBS radio resource manager (located in MBS Zonel), and open the timer TMRReq.

S404, the primary MBS radio resource manager performs resource allocation.

S406. The primary MBS radio resource manager sends the resource allocation result to the secondary MBS radio resource manager through the MBS radio resource allocation response message, and opens the timer TMRRsp. After receiving the MBS radio resource allocation response message sent by the primary MBS radio resource manager from the MBS radio resource manager, the timer TMRReq is turned off.

S408. The MBS radio resource manager sends an MBS radio resource request response confirmation message to the main MBS radio resource manager. After the primary MBS Wireless Resource Manager receives the message, it closes the timer TMRRsp. Referring to FIG. 5, the synchronization process between the MBS radio resource manager and the main MBS radio resource manager is explained when the resource is released. As shown in Figure 5, the process includes the following steps:

S502, send an MBS radio resource release message from the MBS radio resource manager (located in MBS Zone2) to the main MBS radio resource manager (located in MBS Zonel), and open the timer TMRDel.

S504: After receiving the MBS radio resource release message sent by the MBS radio resource manager, the main MBS radio resource manager maintains the current MBS radio resource.

S506. The primary MBS radio resource manager sends an MBS radio resource release confirmation message to the MBS radio resource manager. After receiving the message from the MBS radio resource manager, the timer TMRDeL is turned off. The foregoing is only an embodiment of the present invention. It is not intended to limit the invention, and various modifications and changes can be made to the invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

Claim

A method for coordinating radio resources of a shared multicast broadcast service between multicast broadcast service areas having an overlapping relationship, comprising the steps of:

Setting a radio resource manager for at least two multicast broadcast service areas having overlapping relationships, respectively;

Coordination of shared multicast broadcast service radio resources between at least two multicast broadcast service areas having overlapping relationships is achieved by resource synchronization between the radio resource managers of the at least two multicast broadcast service areas.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 1, wherein one of the radio resource managers A of the at least two multicast broadcast service areas is newly added When a multicast broadcast service program allocates a multicast broadcast service radio resource, the process of resource coordination through resource synchronization includes the following steps:

The radio resource manager A sends a multicast broadcast service radio resource reservation report message to other radio resource managers to report the reserved radio broadcast service radio resources to the other radio resource manager;

If the other radio resource manager also needs to use the reserved multicast broadcast service radio resource, determine whether the reserved multicast broadcast service radio resource is used by the radio resource manager A according to a preset policy. If the result of the determination is yes, return the radio resource reservation report acknowledgement message carrying the reservation success indication to the radio resource manager A, otherwise return to the radio resource manager A to carry the reservation. The multicast broadcast service radio resource reservation report acknowledgement message indicated by the failure.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 2, wherein the multicast broadcast service radio resource reservation report message includes resources of the reserved multicast broadcast service radio resource mark.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 2, wherein when the radio resource manager A allocates multicast radio resources for a plurality of sets of multicast broadcast service programs The multicast broadcast service radio resource reservation report message includes a program tag of each set of multicast broadcast service programs and a reserved resource tag of the corresponding program.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 4, wherein the multicast broadcast service radio resource reservation report message further includes program priority information.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 5, wherein the multicast broadcast service radio resource reservation report message further includes reserved for each set of multicast broadcast service programs. Whether the multicast resource of the multicast broadcast service is bound.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 5 or 6, wherein the other radio resource manager determines the reserved multicast broadcast by using the program priority information. Whether the service radio resource is used by the radio resource manager A.

8. The method for coordinating radio resources of a shared multicast broadcast service according to claim 7, wherein if the multicast broadcast service radio resource reservation report message includes program marks and corresponding sets of each set of multicast broadcast service programs. And the multicast resource reservation report confirmation message of the program includes a mark of the resource reservation success program or a mark of the resource reservation failure program, or includes the set of the multicast broadcast service program. The program mark and the success of its resource reservation are the same.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 7, wherein if the resources are successfully reserved for each set of multicast broadcast service programs, the multicast resources of the multicast broadcast service The reservation report acknowledgement message includes a reservation success indication, and if the resources are reserved for the sets of multicast broadcast service programs, the multicast broadcast service radio resource reservation report acknowledgement message includes a reservation failure indication. .

10. The method for coordinating radio resources of a shared multicast broadcast service according to claim 7, wherein if the radio resources of the multicast broadcast service reserved for the sets of multicast broadcast service programs are bundled, There is a resource reservation failure of one of the multicast broadcast service programs, and the other radio resource manager returns to the radio resource manager A a radio resource reservation report of the multicast broadcast service carrying a reservation failure indication. Confirm the message.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 1, wherein when one of the radio resource managers of the at least two multicast broadcast service areas, the radio resource manager A releases the multicast When broadcasting a radio resource of a broadcast service service, the process of resource coordination through resource synchronization includes the following steps: The radio resource manager A sends a multicast broadcast service radio resource release report message to other radio resource managers to report the released multicast broadcast service radio resources to the other radio resource manager;

The other radio resource manager marks the released multicast broadcast service radio resource as available.

12. The method for coordinating radio resources of a shared multicast broadcast service according to claim 11, wherein the multicast broadcast service radio resource release report message includes a program tag of the released multicast broadcast service program, or includes A resource tag of a multicast broadcast service radio resource of the released multicast broadcast service program, or a program tag containing an unreleased multicast broadcast service program.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 1, wherein when one of the radio resource managers of the at least two multicast broadcast service areas, the radio resource manager A is timed or not When periodically requesting resource synchronization from other radio resource managers, the process of resource coordination through resource synchronization includes the following steps:

The radio resource manager A sends a multicast broadcast service radio resource information response message to the other radio resource manager to report the radio resource usage of the multicast broadcast service to the other radio resource manager;

The other radio resource manager returns a multicast broadcast service radio resource information response confirmation message to the radio resource manager A to confirm to the radio resource manager A that it has received.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 13, wherein the multicast broadcast service radio resource information response message includes a plurality of radio resource manager A currently allocated and used. A resource tag of a broadcast service radio resource, or a program tag that occupies a radio resource of a multicast broadcast service and its corresponding resource tag.

Selecting a radio resource manager that does not belong to any of the multicast broadcast service areas with overlapping relationships or one of at least two multicast broadcast service areas with overlapping relationships as the primary radio resource manager, and will other multicast broadcast services The area's radio resource manager acts as a slave radio resource manager; Coordinating management of shared multicast broadcast service radio resources between at least two multicast broadcast service areas having overlapping relationships by the primary radio resource manager.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 15, wherein when the multicast broadcast service area under the jurisdiction of the radio resource manager has a new multicast broadcast service program, When allocating a multicast broadcast service radio resource, the process of resource coordination by the primary radio resource manager includes the following steps:

Transmitting, by the radio resource manager, a multicast broadcast service radio resource allocation request message to the main radio resource manager, to request the main radio resource manager to allocate a multicast broadcast service radio resource for the multicast broadcast service program ;

And the primary radio resource manager allocates a multicast broadcast service radio resource to the multicast broadcast service program in response to the request from the radio resource manager, and allocates a resource allocation result by using a multicast broadcast service radio resource allocation response message. Carryed to the slave radio resource manager.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 16, wherein the multicast broadcast service radio resource allocation request message includes services such as bandwidth and duration information of the multicast broadcast service program. Shield quantity information.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 17, wherein if the plurality of multicast broadcast service programs are added from the multicast broadcast service area under the jurisdiction of the radio resource manager, Then, the multicast broadcast service radio resource allocation request message includes a program tag of each set of multicast broadcast service programs, and program bandwidth and duration information.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 18, wherein the multicast broadcast service radio resource allocation request message further includes program priority information.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 19, wherein the multicast broadcast service radio resource allocation request message further includes reserved for each set of multicast broadcast service programs. Whether the multicast broadcast service radio resource is bound.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 20, wherein the multicast broadcast service radio resource allocation response message includes program tags of each set of multicast broadcast service programs, and each The mark of whether the program resource reservation is successful, and the reserved resource of the program whose resource reservation is successful are marked as "^.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 20, wherein if the resources are successfully reserved for each set of multicast broadcast service programs, the multicast resources of the multicast broadcast service The allocation response message includes a reservation success indication. If the resources are reserved for the sets of multicast broadcast service programs, the multicast broadcast service radio resource allocation response message includes a reservation failure indication.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 20, wherein if the radio resources of the multicast broadcast service reserved for the sets of multicast broadcast service programs are bundled, If the resource reservation of one of the multicast broadcast service programs fails, the radio resource manager A returns a multicast resource allocation response message carrying a reservation failure indication.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 15, wherein when the multicast resource for multicast broadcast service of the multicast broadcast service program is released from the radio resource manager, The process of resource coordination by the primary radio resource manager ^ "The following steps:

Transmitting, by the radio resource manager, a multicast broadcast service radio resource release report message to the primary radio resource manager, to request the main radio resource manager to mark the radio broadcast service radio resource released by the main radio resource manager as available;

The primary radio resource manager marks the multicast broadcast service radio resource released from the radio resource manager as an available state in response to the request from the radio resource manager, and releases the report through the multicast broadcast service radio resource A confirmation message is sent to the slave from the radio resource manager.

The method for coordinating radio resources of a shared multicast broadcast service according to claim 24, wherein the multicast broadcast service radio resource release report message includes a program tag of the released multicast broadcast service program, or includes The resource tag of the released multicast service radio resource, or the program tag containing the unreleased multicast service program.