CN101296475A - Resource allocation method in communication system and wireless network system - Google Patents

Abstract

The invention relates to the field of wireless communication, and discloses a method for allocating resources in a communication system and a wireless network system, so that the utilization rate of wireless resources in the system can be improved. In the present invention, when the first wireless network system and the second wireless network system that control different physical resources have at least partial overlap in coverage, the first wireless network system and the second wireless network system negotiate to allocate the physical resources they control. resource. The shared physical resource may be a physical resource that is pre-allocated to one of the wireless network systems but not currently used. After the allocated shared physical resources are released, the wireless network system of the opposite party is notified. The wireless network system may be: a system including a radio network controller and a base station node in a traditional network; or a system including an evolved base station node in an evolved high-speed data access network; or a system including an evolved base station node in a long-term evolution network .

Description

Resource allocation method in communication system and wireless network system

technical field

The invention relates to the field of wireless communication, in particular to the allocation technology of physical resources.

Background technique

In 2006, the 3rd Generation Partnership Project (3GPP for short) passed the High Speed Packet Access (HSPA for short) evolution research project, and the evolution network architecture of HSPA (referred to as HSPA+ network) is based on the packet domain (PS) service, which will provide high bit rate user rate and shorter call delay for PS service; for the circuit of the current third generation mobile communication (The Third Generation, referred to as "3G") system Domain (CS) services will no longer be optimized.

In the HSPA+ network, all functions of the Radio Network Controller ("RNC" for short) of the existing 3G system are placed on the evolved HSPA base station node (NodeB+). On the connection with the core network, as shown in Figure 1, from the perspective of the control plane, NodeB+ is directly connected to the Serving GPRS Support Node (SGSN) through the Iu-PS control interface; From the perspective of the user plane, NodeB+ can be connected to the Gateway GPRS Support Node (GGSN for short) through the SGSN through the user plane of Iu-PS, or can be connected to The GGSN is directly connected.

In the HSPA+ network, there is no user plane connection between NodeB+ and CS core network (Core Net, referred to as "CN") nodes, such as Mobile Switching Center (Mobile Switching Center, referred to as "MSC")/Visitor Location Register (Visitor Location Register, referred to as "VLR"), so it cannot provide CS services alone. In order to have backward compatibility, that is, to support CS services, it is necessary to realize interconnection between the HSPA+ network supporting PS services and the traditional network supporting both PS and CS services.

According to the above situation, there are two main deployment scenarios of the existing HSPA+ network, as shown in Figure 2, Figure 2(a) is an independent deployment scenario of HSPA+, and NodeB+ in this scenario only supports PS services, that is, only PS services can pass through the NodeB+ accesses the core network, and CS services still need to pass through the NodeB and RNC of the traditional network to access the core network. There is an Iur interface between the NodeB+ and the RNC of the traditional network; Figure 2(b) is the deployment scenario of HSPA+ carrier frequency sharing. In the scenario, the NodeB+ of the HSPA+ network supports the air interface access of the PS service and the CS service at the same time. The PS service can be directly connected to the core network through the NodeB+, and the CS service needs to be connected to the core network by the NodeB+ and the RNC of the traditional network. The connection between the NodeB+ and the RNC There is an Iub/Iur interface between them. In addition, the HSPA+ independent deployment scenario and the HSPA+ carrier frequency sharing deployment scenario can also co-exist in one network. Figure 3 shows a schematic diagram of the network structure in which the two scenarios are combined.

It can be seen that, in the prior art, in order to support the CS service, the NodeB+ of the HSPA+ network and the base station node (NodeB) of the traditional network will cover the same area.

For example, in an independent deployment scenario, because the NodeB+ of the HSPA+ network can only support PS services, it is mainly deployed in some hotspot areas, and the support for CS services must be through the traditional RNC and NodeB. Therefore, in order to support both CS and PS services, usually It is required that a geographical area covered by the NodeB+ in the independent deployment scenario should also be covered by the NodeB controlled by the traditional RNC. The NodeB+ and the NodeB use different frequencies, and there is no co-frequency interference between the two.

For the carrier frequency sharing deployment scenario, since NodeB+ of the HSPA+ network can only support PS services, the support of CS services must be through NodeB+ and traditional RNC, or through NodeB and RNC of traditional networks. Therefore, in order to support both CS and PS Services usually require that the NodeB+ in the carrier frequency sharing deployment scenario should be connected to the RNC of the traditional network. The coverage of the NodeB+ may overlap with the coverage of the NodeB controlled by the RNC. For the overlapping area, the NodeB+ and the NodeB use different frequencies. There is no co-channel interference between the two.

The inventors of the present invention found that, for NodeB+ and NodeB with overlapping coverage areas, they use different frequency point resources and do not interfere with each other so that limited resources cannot be used more effectively. Since the frequency resources used by NodeB+ and NodeB are specified and cannot match the load conditions of the equipment in the actual business process, it may happen that one party’s business is very idle and its frequency resources are vacant, while the other party’s business It is very busy and the frequency resources are not enough. For example, when the PS service on NodeB+ is very idle, the utilization rate of frequency points is not high; it may be that NodeB is very busy at this time, and resources are not used enough, resulting in unreasonable resource utilization and low utilization rate of frequency point resources.

Contents of the invention

The main technical problem to be solved by the embodiments of the present invention is to provide a resource allocation method in a communication system and a wireless network system, so that the utilization rate of wireless resources in the system can be improved.

In order to solve the above-mentioned technical problems, the embodiment of the present invention provides a resource allocation method in a communication system. When the coverage of the first wireless network system and the second wireless network system that control different physical resources overlap at least partially, Contains the following steps:

The first wireless network system and the second wireless network system negotiate to allocate physical resources controlled by them.

The embodiment of the present invention also provides a wireless network system, the coverage of the wireless network system and other wireless network systems at least partially overlaps, the wireless network system includes:

A negotiating unit, configured to negotiate resource allocation with other wireless network systems;

An allocating unit, configured to allocate physical resources controlled by the wireless network system and other wireless network systems according to the negotiation result.

Compared with the prior art, the embodiment of the present invention has the main effect that the shared physical resources can be dynamically allocated among multiple wireless network systems with overlapping coverage, and the physical resources can be rationally allocated according to factors such as the load of the wireless network systems. Allocation avoids the problem that some wireless network system resources are not enough and other wireless network system resources are idle, which improves the utilization rate of physical resources.

Description of drawings

Fig. 1 is the schematic diagram that NodeB+ in the HSPA+ network is connected with the core network in the prior art;

FIG. 2 is a schematic diagram of two deployment scenarios of the HSPA+ network in the prior art;

FIG. 3 is a schematic diagram of the coexistence of two deployment scenarios of the HSPA+ network in the prior art;

FIG. 4 is a flowchart of a resource allocation method in a communication system according to a first embodiment of the present invention;

Fig. 5 is a schematic diagram of a wireless network system according to a fourth embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

The first embodiment of the present invention relates to a resource allocation method in a communication system. In this embodiment, the first wireless network system negotiates with the second wireless network system, and allocates controlled physical resources according to the negotiation result. The coverage of the first wireless network system and the second wireless network system are at least partially overlapped, because physical resources can be dynamically allocated between the wireless network systems with overlapping coverage, so it can be allocated according to factors such as the load of the wireless network system Reasonable allocation of physical resources avoids the problem that some wireless network system resources are not enough and other wireless network system resources are idle, and the utilization rate of physical resources is improved.

In this embodiment, it is the wireless network system that is negotiating. In the embodiment of the present invention, the situation that the coverage is at least partially overlapped means that the coverage of one wireless network system is partially overlapped with another wireless network system. or a combination of all.

The wireless network system referred to in the embodiments of the present invention is a logical concept. In a real network, the wireless network system may be a system including a radio network controller RNC and a base station node NodeB in a traditional network; it may also be a system including an evolved high-speed data A system including an evolved base station node NodeB+ in the access network HSPA+; it may also be a system including an evolved base station node eNodeB in the long-term evolution network LTE.

In the following, the first wireless network system is a traditional network system and the second wireless network system is an HSPA+ network system as an example for description. The negotiation process is performed between the NodeB+ of the HSPA+ network and the RNC of the traditional network. The information exchanged during the negotiation process may include requested physical resources, load information of both parties, frequency point information, code resource information, cell information, RNC/NodeB+ information, cell capacity, etc.

The specific process is shown in Figure 4. In step 401, when there are currently unused physical resources on the NodeB+ (that is, there are physical resources that can be allocated to the RNC), the NodeB+ sends an indication to the RNC of the traditional network that these resources can be allocated to the RNC. The information about the physical resources of the RNC is referred to as available resource information. The available resource information may also include available time information of these physical resources. At the same time, the load condition of the NodeB+ may also be sent to the RNC.

In this step, the timing for the NodeB+ to send the available resource information may be periodic or triggered by an event. For example, NodeB+ can periodically (such as every 5 seconds) send the information of unused physical resources on the NodeB+ to RNC; or when an event is triggered, such as when the available resource information changes, or NodeB+ receives When the RNC inquires about the request, it sends information indicating the physical resources that the NodeB+ can allocate to the RNC to the RNC. There are many ways that can be adopted, which is very flexible and convenient.

It should be noted that the above physical resources may include one of the following or any combination thereof: frequency point resources, code resources, and subcarrier resources; the code resources at least include scrambling code resources and/or channelization code resources.

In step 402, when the RNC needs to use at least one physical resource indicated by the available resource information, it sends a request message requesting the physical resource to the NodeB+. The request message may specifically include the requested physical resource, the requested time for use, the NodeB or cell to which the physical resource is expected to be allocated, and the like.

In step 403, after receiving the request message, the NodeB+ judges whether the physical resources requested by the request message can be allocated to the RNC. If it can be allocated to the RNC, go to step 404, return a response that the physical resource can be used to the RNC, and then go to step 405. If the requested physical resource is currently occupied or partially occupied, then enter step 406, return to the RNC information on other physical resources that can be allocated to the RNC on the NodeB+ (that is, available resource information), and then enter step 407.

In step 405, the requested physical resource can be allocated to the RNC at present, and after receiving the response that the physical resource can be used, the RNC allocates the physical resource to the NodeB controlled by it, and the NodeB and NodeB+ have at least partial coverage In addition, the RNC can also return a confirmation message to the NodeB+.

Or, in step 404, after NodeB+ returns the response that the physical resource can be used to the RNC, the physical resource can be directly allocated to the corresponding cell of the NodeB controlled by the RNC and needs to use the resource. In this case, In step 405, the RNC no longer needs to allocate the physical resource to the NodeB it controls. In addition, the RNC can directly return an acknowledgment message to the NodeB+.

In step 407, the requested physical resources are currently fully or partially occupied, and after receiving other available resource information returned by NodeB+, the RNC allocates the physical resources indicated by the available resource information to the NodeB controlled by the RNC. At least part of the coverage area of the NodeB and NodeB+ overlaps. In addition, the RNC can also return a confirmation message to the NodeB+.

Or, in step 406, after NodeB+ returns other available resource information to the RNC, it directly allocates the other physical resources in the cell corresponding to the NodeB controlled by the RNC and needs to use the physical resources. In this case, in step 407 , the RNC no longer needs to allocate this physical resource to the NodeB it controls. In addition, the RNC can directly return an acknowledgment message to the NodeB+.

It should be noted that, if the physical resources requested by the RNC are currently occupied or partially occupied, the above step 406 is only one of the processing methods. In fact, the method described in step 406 may not be used, but a response message that the requested physical resource cannot be allocated to the RNC may be returned to the RNC; NodeB+ sends request messages requesting other physical resources.

In this embodiment, the physical resources that can be allocated to the RNC on the NodeB+ are physical resources that are controlled by the NodeB+ but are not currently used. By negotiating and utilizing these resources, the utilization rate of wireless resources in the system can be improved.

In step 408, after the NodeB releases the allocated physical resources, the RNC notifies the NodeB+ of the information of the released physical resources, so that the physical resources can be used by the NodeB+, preventing resources from being vacant due to information asynchrony. After receiving the notification, the NodeB+ may return a confirmation message.

In addition, in step 408, if the load information of the NodeB+ changes before the NodeB controlled by the RNC releases the allocated physical resources, such as the business becomes very busy and needs to use the physical resources occupied by the NodeB, then the NodeB+ It is also possible to actively send a request to the RNC to release the allocated physical resources. After receiving the request, the RNC releases the occupied physical resources and returns the physical resources to the NodeB+. In this way, it is ensured that while resource sharing and resource utilization are improved, the resource usage of NodeB+ itself will not be affected.

In addition, if NodeB+ controls a physical resource but does not use it for a long time, it can also send a physical resource idle message to RNC to inform RNC that this physical resource can be used by RNC, without sending a request message for requesting physical resource. After receiving the idle physical resource message, the RNC may send a response message indicating the use of the idle physical resource to the NodeB+. This can also be seen as a way of negotiating the allocation of physical resources.

The process is described below in combination with a specific example. For example, in an independent deployment scenario, the NodeB+12 and the NodeB25 controlled by the RNC25 cover the same cell, and the NodeB+12 pre-reserves some resources and notifies the RNC25 of information about these resources. Alternatively, the NodeB+12 may periodically notify the RNC25 of its own available resource information, for example, every 5 seconds, that is, the physical resources on the NodeB+12 that can be allocated to the RNC.

The terminal initiates the CS service, NodeB+12 receives the corresponding radio resource control connection request (RRC Connect Request) from the common control channel (Common Control Channel, referred to as "CCCH"), checks and confirms that it is a request in the CS domain, and forwards it through the Iur interface To RNC25.

RNC25 decides to accept this request, but the current load of NodeB25 controlled by RNC25 is relatively large, so RNC25 starts to request corresponding resources from NodeB+12, the request method is as follows: RNC25 selects the required The selected resources and the minimum requirements of the resources required by the RNC25 are sent to NodeB+12 through the radio link establishment request (RL Setup Request) message. NodeB+12 judges and determines that the resource selected by RNC25 has been fully or partially occupied, so that NodeB+12 automatically allocates resources according to the minimum requirement indicated in the wireless link establishment request message, and establishes a wireless link on NodeB+12 for the terminal road, and obtain downlink synchronization. At the same time, NodeB+12 returns a radio link establishment response (RL Setup Request) message to RNC25, and the information of the physical resources redistributed by NodeB+12 is carried in the radio link establishment response message. By sharing the currently unused physical resources on the NodeB+12, the utilization rate of wireless resources in the system can be improved, and the resource shortage of the RNC25 can be alleviated.

In the above process, as shown in the shaded part in Table 1, RNC25 includes the uplink scrambling code, the minimum length of uplink channel coding, the maximum number of uplink dedicated physical data channels, and the Uu interface (between the RNC and the terminal) in the wireless link establishment request. The maximum rate and the guaranteed rate of the interface between) indicate the selected resource and the minimum requirement of the resource required by the RNC25.

Table 1

Table 2 shows the specific content contained in the maximum rate and guaranteed rate of the Uu interface in Table 1.

Generic TrafficCategory general transmission category m BIT STRING(8) bit string(8) ＞Maximum BitRate m 1to<nbr-SeparateTrafficDirections> INTEGER(1..16,000,000) integer(0..16,000,000) Desc.: This IE indicates the maximum number of bits delivered by UTRAN and to UTRAN at a SAPwithin a period of time, divided by the duration of the period. The unit is: bit/s This information element indicates from the access network to UTRAN within a period of time The maximum number of bits transmitted by the access network. Its unit is: bit/second Usage: When nbr-SeparateTrafficDirectionsis equal to 2, then Maximum Bit Rateattribute for downlink is signaledfirst, then Maximum Bit Rateattribute for uplink ＞Guaranteed BitRate C-iftrafficConv-Stream 0to<nbr-SeparateTrafficDirections> INTEGER(0..16,000,000) integer(0..16,000,000) Desc.: This IE indicates the guaranteed number of bits delivered at a SAP within a period of time (provided that there is data to deliver), divided by the duration of the period. The unit is: bit/s The guaranteed number of bits for access network to access network transfer. Its unit is: bit/second Usage: 1.Whennbr-SeparateTrafficDirections isequal to 2, then Guaranteed BitRate for downlink is signalledfirst, then Guaranteed Bit Rate for uplink2.Delay and reliability attribute only apply up to the guaranteedMode up port for the differential rate for Conditional pre-definedSDU sizes: Set to highest not ratecontrollable bitrate, where bitrate is either-one of the RAB subflowcombination bitrate IEs(whenpresent)or-one of the calculated values

given when dividing the compound Subflow combinationSDU sizes by the value of the IEMaximum SDU Size and then multiplying this result by the value of the IE Maximum BitRate.

Table 2

Similarly, as shown in the shaded part in Table 3, the NodeB+12 instructs the NodeB+12 to reassign by including the uplink scrambling code, the minimum length of the uplink channel coding, and the maximum number of uplink dedicated physical data channels in the radio link establishment response message. Information about physical resources.

table 3

This embodiment mainly describes the method for the RNC in the traditional network to allocate and use the idle resources on the NodeB+ of the evolved network through negotiation. Correspondingly, the NodeB+ can also use the same method to share the idle resources on the RNC.

The second embodiment of the present invention also relates to a resource allocation method in a communication system, which is substantially the same as the first embodiment, the difference being that in the first embodiment, the NodeB+ actively sends the available resource information to the RNC, that is, the NodeB+ can Information about the physical resources allocated to the RNC, the RNC selects the physical resources according to the available resource information, and sends a request message to the NodeB+ requesting the selected physical resources; in this embodiment, the RNC directly uses the physical resources when it needs to use , sending a request message requesting physical resources to the NodeB+, and the NodeB+ selects specific physical resources allocated to the RNC, and returns a response message, which includes the physical resources allocated to the RNC.

The following describes this embodiment in conjunction with specific scenarios. In this embodiment, the NodeB+ and the RNC can use the information exchange (Information Exchange) process of the Iur interface to realize the negotiation of physical resources.

Specifically, in the prior art, the information exchange start request (INFORMATION EXCHANGE INITIATION REQUEST) message is mainly used for exchanging information between Universal Mobile Telecommunications System (Universal Mobile Telecommunications System, "UMTS" for short) and GSM. In this embodiment, the part of the evolved HSPA network cell (HSPA+Cell) and the traditional network cell (UTRAN Cell) is added to the message, as shown in the shaded part in Table 4, so that the message can be used for the evolved HSPA (i.e. HSPA+) network The communication between the cell and the traditional network cell.

In addition, in the information type (Information Type) requested at the beginning of the information interaction, the field information type item (Information Type Item) is added with two types of information types: request resource and return resource, and optionally confirm resource type . At the same time, remove the restriction on the scope of use of this field, as shown in the shaded part of Table 5.

Table 4

table 5

During implementation, the requester, such as NodeB+, sends an INFORMATION EXCHANGEINITIATION REQUEST message to RNC, in which the Information Type Item is set to request resources, and NodeB+ also assigns a transaction ID (Transaction ID) to it. After receiving the message, the receiver, such as RNC, judges according to its own load information and capabilities. If there are currently pre-allocated but unused physical resources that can be provided to the NodeB+, the RNC returns an INFORMATION EXCHANGE response (INFORMATION EXCHANGE) to the NodeB+. INITIATION RESPONSE) message, as shown in Table 6. The available resource information is indicated in the requested data value (Requested Data Value) field of the message, such as the frequency band or scrambling code information that can be allocated to NodeB+, as shown in Table 7. The Transaction ID of this message is the same as in the INFORMATION EXCHANGE INITIATION REQUEST message. By sharing the currently unused physical resources on the RNC, the utilization rate of wireless resources in the system can be improved, and the shortage of NodeB+ resources can be alleviated.

When the NodeB+ business ends and the physical resources are released, send the INFORMATION EXCHANGE INITIATION REQUEST message to the RNC again. The Transaction ID of the message is the same as that of the message sent for the first time, and the Information Type Item is set to return the resource; after the RNC receives the message , according to the Transaction ID, it can be determined that the NodeB+ will return the physical resource; after that, the RNC can return the INFORMATION EXCHANGE INITIATION RESPONSE message to the NodeB+ again, the Transaction ID remains unchanged, and the Information Type Item is set to confirm the resource, informing the NodeB+ that the RNC accepts the physical resource . After the allocated physical resource is released, the NodeB+ will notify the corresponding RNC of the released physical resource information, so that the physical resource can be used by the RNC, preventing resources from being vacant due to information out of synchronization.

This embodiment mainly describes the method for the NodeB+ of the evolved network to share the idle resources of the RNC of the traditional network. Correspondingly, the RNC can also use the same method to share the idle resources of the NodeB+.

In addition, in addition to between RNC and NodeB+, this embodiment can also be applied between any two of the following wireless network systems: a system composed of RNC and NodeB in a traditional network, a NodeB+ system in an HSPA+ network, an eNodeB system in an LTE network, and other wireless network systems. network system, etc. Including between RNC and RNC in the traditional network, between NodeB+ and NodeB+ in the HSPA+ network, between eNodeB and eNodeB in the LTE network, and between other wireless network systems, etc., as long as the coverage areas of the two overlap at least partially.

Table 6

Table 7

The third embodiment of the present invention also relates to a resource allocation method in a communication system, which is substantially the same as the first and second embodiments, the difference being that in the first and second embodiments, eNodeB+ and RNC are directly connected through Iur/Iub The interface performs information exchange to complete the negotiation; and in this embodiment, the eNodeB+ and the RNC perform information exchange through a third-party device to complete the negotiation. The third-party device may be the SGSN of the core network, and exchanges information with the Iu interface of the SGSN to complete the negotiation.

The fourth embodiment of the present invention relates to a wireless network system. As shown in FIG. 5 , the coverage of the wireless network system and other wireless network systems at least partially overlaps, and the wireless network system includes: a negotiating unit for communicating with the wireless network system The other wireless network systems perform resource allocation negotiation; the allocation unit is configured to allocate the physical resources controlled by the wireless network system and the other wireless network system according to the result of the negotiation. The allocation of physical resources through negotiation can be dynamically allocated between multiple wireless network systems with overlapping coverage, and physical resources can be allocated reasonably according to factors such as the load of the wireless network system, so as to avoid insufficient resources in some wireless network systems and other parts. The problem of idle wireless network system resources improves the utilization of physical resources. The aforementioned negotiating unit and allocating unit may be included in the base station controller of the wireless network system.

The wireless network system may be a system including a radio network controller and a base station node in a traditional network; or a system including an evolved base station node in an evolved high-speed data access network; or a system including an evolved base station node in a long-term evolution network system. Since it is very common for two wireless network systems to partially overlap coverage areas, the application scenarios of the embodiments of the present invention are relatively common. The aforementioned physical resources include at least one of the following: frequency point resources, code resources, and subcarrier resources; the code resources include at least one of the following: scrambling code resources, and channelization code resources.

The negotiating unit may further include: a requesting subunit, configured to send a request message requesting physical resources to the other wireless network system; a first receiving subunit, configured to receive a response message from the other wireless network system, and the response message may Contains information about the physical resources available to the wireless network system.

The negotiating unit may also include: a second receiving subunit, configured to receive a request message requesting physical resources from the other wireless network system; a first sending subunit, configured to return a response message to the other wireless network system, which may be The response message contains information about the physical resources available to the other wireless network system; the first judging subunit is used to judge whether the physical resource requested by the request message is currently used by the wireless network system, and if it is not used, indicate The first sending subunit returns the response message to the other wireless network system. The negotiating unit may further include: a second sending subunit, configured to return the request message to the other wireless network system when the first judging subunit determines that at least part of the physical resource requested by the request message has been used by the current wireless network system A response message that physical resources cannot be allocated; or, when the first judging subunit judges that at least part of the physical resources requested by the request message are currently used by the wireless network system, the second sending subunit sends a message to the other wireless network system Return information about other physical resources that can be allocated to the wireless network system.

The negotiating unit may further include: an allocatable resource indicating unit, configured to send information indicating physical resources that the wireless network system can allocate to the other wireless network system to the other wireless network system. The opportunity for the allocatable resource indication unit to send the information of the physical resource that the local wireless network system can allocate to the other wireless network system is one of the following: when receiving the query request from the other wireless network system; or, at periodic timing When the controller completes a timing cycle; or, when the physical resource that the local wireless network system can allocate to the other wireless network system changes, it is very flexible.

It should be noted that the above-mentioned units are all logical units, and may be located in different physical units or combined in the same physical unit during implementation.

To sum up, in the embodiments of the present invention, when the coverage of the first wireless network system and the second wireless network system controlling different physical resources overlap at least partially, the first wireless network system and the second wireless network system Network systems negotiate the allocation of physical resources under their control. Since physical resources can be dynamically allocated among multiple wireless network systems with overlapping coverage, physical resources can be allocated reasonably according to factors such as the load of wireless network systems, so as to avoid insufficient resources of some wireless network systems and insufficient resources of other wireless network systems. The problem of idle system resources improves the utilization of physical resources.

The wireless network system may be a system including a radio network controller and a base station node in a traditional network; or a system including an evolved base station node in an evolved high-speed data access network; or a system including an evolved base station node in a long-term evolution network system. Since it is very common for two wireless network systems to partially overlap coverage areas, the application scenarios of the embodiments of the present invention are relatively common.

When negotiating, one wireless network system can send information about the available physical resources to another wireless network system, that is, physical resources that can be allocated to another wireless network system but are not currently being used; When using the physical resources contained in the received information, request the physical resources to be used from the first wireless network system. If the first wireless network system determines that the physical resources can be allocated to the second wireless network system, the result of the negotiation If the physical resource can be allocated, if the first wireless network system determines that the physical resource is at least partially unavailable, the result of the negotiation is that the physical resource cannot be allocated to the second wireless network system, so as to ensure that the existing resource will not be wrongly occupied. The physical resource being used.

Each wireless network system may not send available resource information to the other party, but independently determines the physical resources available to the other party when the other party's wireless network system requests physical resources from the local wireless network system. This method enables the local wireless network system to better Allocate resources; you can also periodically send available resource information to the other party, and the other party selects the resources to be used according to the available resource information, and requests the selected resources from the wireless network system. This method enables the wireless network system of the other party to Choose the most appropriate resource.

After the physical resource allocated through negotiation is released, a release notification is sent to the wireless network system of the other party, so that the physical resource can be used by the wireless network system of the other party, and the utilization rate of wireless resources in the system is further improved.

Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the present invention. The spirit and scope of the invention.

Claims (22)

1. resource allocation methods in the communication system is characterized in that first Radio Network System and second Radio Network System of controlling different physical resources are having at least on the coverage under the situation about partially overlapping, and may further comprise the steps:

Described first Radio Network System and second Radio Network System consult to distribute the physical resource of its control.

2, resource allocation methods in the communication system according to claim 1 is characterized in that, described first Radio Network System and/or second Radio Network System are: comprise the radio network controller in the legacy network and the system of base-station node; Perhaps

The system that comprises the evolution base station node in the evolution high-speed data access network; Perhaps

The system that comprises the evolution base station node in the long-term evolving network.

3. resource allocation methods in the communication system according to claim 1 is characterized in that, it is one of following that described physical resource comprises at least: frequency resource, sign indicating number resource, sub-carrier resources;

It is one of following that described sign indicating number resource comprises at least: scrambler resource, channelization code resource.

4. resource allocation methods in the communication system according to claim 1 is characterized in that, described first Radio Network System and second Radio Network System consult to distribute the physical resource of its control to comprise:

Described first Radio Network System sends the request message of request physical resource to described second Radio Network System;

Do not used if the physical resource that described first Radio Network System is asked is current by described second Radio Network System, then described second Radio Network System returns response message to described first Radio Network System, and this corresponding message comprises the information of the physical resource that can use for described first Radio Network System.

5, resource allocation methods in the communication system according to claim 4 is characterized in that, described first Radio Network System to the mode that described second Radio Network System sends the request message of request physical resource is:

Described first Radio Network System sends Radio Link to described second Radio Network System and sets up request message, sets up at this Radio Link to comprise one of following information in the request message at least: uplink scrambling code information, up channel coding minimum length, up Dedicated Physical Data Channel maximum number, downlink coding information;

Described second Radio Network System to the mode that described first Radio Network System returns response message is:

Described second Radio Network System sends Radio Link to described first Radio Network System and sets up response message, sets up at this Radio Link to comprise one of following information in the response message at least: uplink scrambling code information, up channel coding minimum length, up Dedicated Physical Data Channel maximum number.

6, resource allocation methods in the communication system according to claim 4 is characterized in that, described first Radio Network System to the mode that described second Radio Network System sends the request message of request physical resource is:

Described first Radio Network System sends information interaction to described second Radio Network System and begins request message, comprises Transaction Identifier in this message, and the information type item field is set to request resource in this message;

Described second Radio Network System to the mode that described first Radio Network System returns response message is:

Described second Radio Network System returns to described first Radio Network System and begins response message alternately, in this message, comprise with described information interaction and begin Transaction Identifier identical in the request message, in the requested data value field of this exchange beginning response message, comprise the information of described physical resource for described first Radio Network System use.

7, resource allocation methods in the communication system according to claim 4 is characterized in that, described second Radio Network System also comprises after described first Radio Network System returns response message:

Described first Radio Network System sends the affirmation message that described response message is received in expression to described second Radio Network System.

8. resource allocation methods in the communication system according to claim 1 is characterized in that, described first Radio Network System and second Radio Network System consult to distribute the physical resource of its control to comprise:

Described first Radio Network System sends the request message of request physical resource to described second Radio Network System;

If the physical resource of the described first Radio Network System request has at least part to be used by described second Radio Network System, then

Described second Radio Network System returns the response message that described physical resource cannot be distributed to described first Radio Network System to described first Radio Network System; Described first Radio Network System sends the request message of other physical resources of request to described second Radio Network System; Perhaps

Described second Radio Network System returns the information that other can distribute to the physical resource of described first Radio Network System use to described first Radio Network System.

9, resource allocation methods in the communication system according to claim 1 is characterized in that, described first Radio Network System and second Radio Network System consult to distribute the physical resource of its control to comprise:

Described second Radio Network System sends the physical resource idle message to described first Radio Network System, and this physical resource idle message indicates described second Radio Network System can distribute to the physical resource that described first Radio Network System uses.

10, resource allocation methods in the communication system according to claim 9, it is characterized in that, described second Radio Network System is after described first Radio Network System sends the physical resource idle message, and described first Radio Network System sends the response message of expression to this free time physical resource operating position to described second Radio Network System.

11. resource allocation methods in the communication system according to claim 1 is characterized in that, before described first Radio Network System and second Radio Network System consult to distribute the step of physical resource of its control, comprising:

Described second Radio Network System sends the information that described second Radio Network System of indication can be distributed to the physical resource of described first Radio Network System to described first Radio Network System.

12. resource allocation methods in the communication system according to claim 11, it is characterized in that described second Radio Network System sends described second Radio Network System of described indication, and can to distribute to opportunity of information of the physical resource of described first Radio Network System be one of following:

When receiving the query requests of described first Radio Network System; Or

When periodically timer is finished a time-count cycle; Or

When described second Radio Network System can be distributed to the physical resource change of described first Radio Network System.

13. resource allocation methods in the communication system according to claim 1 is characterized in that, consult to distribute the step of physical resource of its control at described first Radio Network System and second Radio Network System after, comprising:

Described first Radio Network System is notified the information of the physical resource of described second Radio Network System release after the described physical resource that is assigned with is released; Perhaps

Described first Radio Network System receives the request from the described physical resource that is assigned with of the release of described second Radio Network System, discharges the described physical resource that is assigned with.

14. resource allocation methods in the communication system according to claim 13 is characterized in that, described first Radio Network System notifies the mode of the information of the physical resource that described second Radio Network System discharges to be:

Described first Radio Network System sends information interaction to described second Radio Network System and begins request message, comprises Transaction Identifier in this request message, and the information type item field is set to give back resource in this message.

15. resource allocation methods in the communication system according to claim 1 is characterized in that, described first Radio Network System and second Radio Network System consult to distribute the physical resource of its control by third party device.

Partially overlap 16. a Radio Network System, this Radio Network System and other Radio Network System have at least on coverage, it is characterized in that this Radio Network System comprises:

Negotiation element is used for carrying out resource allocation negotiation with described other Radio Network System;

Allocation units, the result who is used for according to described negotiation distributes the physical resource of this Radio Network System and described other Radio Network System control.

17. Radio Network System according to claim 16 is characterized in that, described Radio Network System is to comprise the radio network controller in the legacy network and the system of base-station node; Perhaps

The system that comprises the evolution base station node in the evolution high-speed data access network; Perhaps

The system that comprises the evolution base station node in the long-term evolving network.

18. Radio Network System according to claim 16 is characterized in that, it is one of following that described physical resource comprises at least: frequency resource, sign indicating number resource, sub-carrier resources;

It is one of following that described sign indicating number resource comprises at least: scrambler resource, channelization code resource.

19. Radio Network System according to claim 16 is characterized in that, described negotiation element further comprises:

The request subelement is used for sending the request message of asking physical resource to described other Radio Network Systems;

First receives subelement, is used to receive the response message from described other Radio Network System.

20. Radio Network System according to claim 16 is characterized in that, described negotiation element further comprises:

Second receives subelement, is used to receive the request message from the request physical resource of described other Radio Network System;

First sends subelement, is used for returning response message to described other Radio Network System;

First judgment sub-unit is used to judge current whether the use by this Radio Network System of physical resource of described request message request, if be not used then indicate described first to send subelement and return described response message to described other Radio Network System.

Described negotiation element further comprises:

Second sends subelement, be used for when described first judgment sub-unit judges that the physical resource of described request message request has been used by this Radio Network System to small part is current, returning the response message that described physical resource cannot distribute to described other Radio Network System; Perhaps when described first judgment sub-unit judges that the physical resource of described request message request has been used by this Radio Network System to small part is current, return the information that other can distribute to the physical resource of this Radio Network System use to described other Radio Network System.

21. Radio Network System according to claim 16 is characterized in that, also comprises:

The allowable resource indicating member is used for sending the information that this Radio Network System of indication can be distributed to the physical resource of described other Radio Network System to described other Radio Network System.

22. Radio Network System according to claim 21 is characterized in that, described allowable resource indicating member sends described Radio Network System, and can to distribute to opportunity of information of the physical resource of described other Radio Network System be one of following:

When receiving the query requests of described other Radio Network System; Or

When periodically timer is finished a time-count cycle; Or

When described Radio Network System can be distributed to the physical resource change of described other Radio Network System.

Images