WO2012062121A1

WO2012062121A1 - Method for resource allocation and multi-mode controller

Info

Publication number: WO2012062121A1
Application number: PCT/CN2011/076525
Authority: WO
Inventors: 李东亮; 余菲
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-11-12
Filing date: 2011-06-28
Publication date: 2012-05-18
Also published as: CN102469529B; CN102469529A

Abstract

A method for resource allocation and a multi-mode controller are disclosed in the present invention, wherein the method includes: for each transmission path, determining the amount of data transmission and the amount of data requesting of each data stream of the transmission path in the current period; according to the amount of data transmission and the amount of data requesting of each data stream in the transmission path, determining the total amount of data transmission and the total amount of data requesting of the transmission path in the current period; according to the amount of data transmission and the amount of data requesting of each data stream in the current period, the total amount of data transmission and the total amount of data requesting of the transmission path in the current period, the allocated bandwidth of the transmission path, determining the amount of data requesting of each data stream in the transmission path in the next period. With the technical solutions of the present invention, when multiple radio access modes are transmitted together, the rationality of resource allocation for data stream in each radio access mode is improved, and resource utilization ratio and system throughput are increased.

Description

Method for resource allocation and multi-mode controller

The present invention relates to the field of communications, and in particular, to a method for resource allocation and a multi-mode controller. Background technique

At present, with the rapid development of wireless technologies, more and more RAT technologies (Radio Access Technology) are widely used. RAT technologies may include: WCDMA (Wideband Code Division Multiple Access) Technology, TD-SCDMA (Time Division Synchronized Code Division Multiple Access) technology, GSM (Global System for Mobile Communications) technology, WiMAX (World Interoperability for Microwave Access) Into the technology) technology and LTE (Long Term Evolution) technology, etc., the above various radio access technologies may be referred to as a wireless access system; in the case of multiple wireless access systems coexisting, due to the multi-mode controller It has the function of supporting multiple single-standard communication network controllers. Therefore, at present, multi-mode controllers are mainly used for resource allocation and communication control of each wireless access system.

When multiple wireless access systems coexist, the multi-mode co-site networking mode is used for networking, that is, the network after the networking is composed of base stations corresponding to each radio access system, such as the GSM system and the CDMA2000 system corresponding base station. BTS (Base Transceiver Station), WCDMA system, and base station Node B corresponding to the LTE system. The foregoing base station can communicate with multiple user terminals in a sector on one transmission link, and each user terminal can establish one or more data streams with the base station; limited network resources can be available for each transmission link, Supports data transfer for all data streams on the transport link. The bandwidth resources allocated to each transmission link are fixed, and each transmission link includes at least one valid path, such as at least one valid IP address. At present, the multi-mode controller separately allocates bandwidth resources to the data streams of each wireless access system. Although the bandwidth resources are separately allocated, although the bandwidth requirements and the transmission rates of the data flows of the wireless access systems are different, The method of allocating bandwidth resources will make the bandwidth resources allocated for the data flow of the wireless access standard with higher transmission rate larger, and the bandwidth resources allocated for the data flow of the wireless access standard with lower transmission rate are smaller; In a certain period of time, when the traffic volume of the radio access system with a low transmission rate is large, there may be insufficient bandwidth resources, and the traffic of the radio access standard with a high transmission rate has a small amount of traffic. At this time, there are more free broadband resources. Therefore, the method of separately allocating bandwidth resources leads to unreasonable allocation of resources to data flows of each radio access system, and resources allocated for data flows of each radio access system are unbalanced, thereby causing resources to be insufficiently utilized, which in turn leads to the entire The system throughput of the network system is low. Summary of the invention

In view of the above, the present invention provides a resource allocation method and a multi-mode controller, so as to improve the rationality of resource allocation resources for each radio access system and improve resources when multiple radio access systems are co-transmitted. Utilization and system throughput.

In order to solve the above technical problem, the technical solution of the present invention is implemented as follows:

A method of resource allocation, including:

For each transmission path, determining the amount of data transmission and the amount of data request for each data stream in the transmission path in the current period;

Determining, according to the data sending amount and the data request amount of each data stream in the transmission path, the total data sending amount and the total data request amount of the transmission path in the current period;

Determining each data stream in the transmission path according to the data transmission amount and data request amount of each data stream in the current period, the total data transmission amount of the transmission path in the current period, the total data request amount, and the allocated bandwidth of the transmission path. The amount of data requests in the next cycle.

A multimode controller, comprising: a multi-mode control unit, configured to determine, for each transmission path, a data transmission amount and a data request amount of each data stream in the transmission path in a current period; and a data transmission amount according to each data stream in the transmission path The amount of data request, determining the total amount of data transmission and the total amount of data requests in the current period of the transmission path; and, according to the data transmission amount and data request amount of the current period of each data stream, and the data of the transmission path in the current period The total amount of transmissions and the total number of data requests, the allocated bandwidth of the transmission path, and the amount of data requests for each data stream in the next cycle in the next cycle.

In the embodiment of the present invention, on the one hand, for the network that is commonly transmitted by the wireless access system, the data flows of each wireless access system are based on the data transmission amount, the data request amount, and the transmission path of each data stream in the current cycle. The total amount of data transmission and the total number of data requests in the current period, and the allocated bandwidth of the transmission path, determine the data request amount of each data stream in the next cycle in the transmission path, which is in accordance with the data bandwidth requirement of each wireless access system. And the transmission rate; and, avoiding high-throughput data streams occupying more usable bandwidth resources, because the high-throughput data stream is close to the throughput upper limit, so the request for increased data requests is small, occupying The available bandwidth resources are relatively small, thus ensuring that low-throughput data streams can acquire certain bandwidth resources, thereby ensuring the balance of resource allocation among the wireless access systems; on the other hand, ensuring data flow The fairness of the allocated bandwidth resources is relatively large, and the data flow with a large amount of data transmission is relatively more distributed. The available bandwidth resources allocate relatively small available bandwidth resources for data streams with small data transmission volume, thereby improving resource utilization and improving system throughput. DRAWINGS

1 is a schematic flowchart of a method for allocating resources for a data stream according to an embodiment of the present invention; FIG. 2 is a schematic flowchart of a method for determining a total amount of data transmission and a total amount of data requests in a current period in a current path according to an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a method for determining a data request amount of each data stream in a next period in the transmission path according to an embodiment of the present invention; 4 is a schematic flowchart of a method for accessing a data stream according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a multimode controller according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of a network architecture of a multimode controller connected to a multimode base station according to an embodiment of the present invention. detailed description

For the above technical problem in the prior art, the embodiment of the present invention provides a resource allocation method, so as to improve the rationality of allocating resources to each data flow in a network that is commonly transmitted by the wireless access system, thereby improving resource utilization and System throughput. The method includes: determining, for each transmission path, a data transmission amount and a data request amount of each data stream in the current transmission channel in a current period; and a data transmission amount and a data request amount according to each data flow in the transmission path. , determining the total amount of data transmission and the total number of data requests in the current period of the transmission path; the amount of data transmission and the amount of data requests in the current period according to each data stream, and the total amount of data transmission and data in the current period of the transmission path The total amount of requests, the allocated bandwidth of the transmission path, and the amount of data requests for each data stream in the next cycle in the next cycle. According to the technical solution of the present invention, on the one hand, for the network that is commonly transmitted by the wireless access system, the data flow of each wireless access system is based on the data transmission amount and the data request amount and the transmission of each data stream in the current cycle. The total amount of data sent in the current period and the total amount of data requests, the allocated bandwidth of the transmission path, and the amount of data request for each data stream in the next period in the transmission path, which is consistent with the data bandwidth of each wireless access system. Demand and transmission rate; and, avoiding high-throughput data streams occupying more usable bandwidth resources, because the high-throughput data stream is close to the throughput upper limit, so the request for increased data requests is smaller. The occupied bandwidth resources are relatively small, thereby ensuring that a low-throughput data stream can acquire a certain bandwidth resource, thereby ensuring the balance of resource allocation among the wireless access systems; on the other hand, ensuring data The fairness of the allocated bandwidth resources between the streams, and the relatively large number of data streams with a large amount of data transmission Bandwidth, allocation of the available bandwidth is relatively small for a smaller amount of data sent in a data stream, thereby improving resource utilization Utilization rate increases system throughput.

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic flowchart of a method for allocating resources for a data flow according to an embodiment of the present invention, where the method includes:

Step 101: Determine, for each transmission path, a data transmission amount and a data request amount of each data stream in the transmission path in a current period.

Step 102: Determine, according to the data sending amount and the data request amount of each data stream in the transmission path, the total data sending amount and the total data request amount of the transmission path in the current period.

Step 103: Determine, according to the data transmission amount and the data request amount of each data stream in the current period, the total data transmission amount of the transmission path in the current period, the total data request amount, and the allocated bandwidth of the transmission path, determine each of the transmission paths. The amount of data requests for the next cycle of data flow.

Preferably, in order to ensure that each data stream accessing the transmission path has sufficient bandwidth for data transmission, the foregoing process further includes:

Step 104: Receive a data flow access request on the transmission path, and determine, according to the guaranteed bandwidth of the data stream requested to access and the idle bandwidth of the transmission path, the idle bandwidth from the transmission path. The corresponding guaranteed bandwidth is allocated for the data stream accessed by the request.

In the foregoing process step 102, determining the total amount of data transmission and the total number of data requests in the current period of the transmission path, including: accumulating the data transmission amount of all the data streams in the current path in the current period, and obtaining The accumulated value is the total amount of data transmission of the transmission path in the current period; the data request amount of all the data streams in the transmission path is accumulated in the current period, and the accumulated value obtained is the transmission path in the current period. The total amount of data requests.

In step 103 of the foregoing process, according to the data transmission amount and the data request amount of each data stream in the current period, the total data transmission amount and the total data request period of the transmission path in the current period, and the allocated bandwidth of the transmission path, the The amount of data request for each data stream in the next cycle in the transmission path, including: When the total number of data requests of the transmission path is less than the set bandwidth threshold, and the total amount of data transmission of the transmission path is greater than the bandwidth threshold, determining the data request amount of each data stream in the next cycle in the transmission path The data stream has the same amount of data requests in the current cycle.

When the total amount of data requests of the transmission path is greater than the set bandwidth threshold, and the total amount of data transmission of the transmission path is greater than the bandwidth threshold, according to the security use bandwidth in the current period, the data stream is in the current period. The amount of data transmission and the total amount of data transmission of the transmission path in the current period determine the amount of data request for the data stream in the next period. For example, the data request amount of each data stream in the next cycle can be obtained by using equation (1):

Ρρ.(τ+ο― (PA)x (P _{S (T)} Ρ _8(Γ )) In Equation (1), P _{P +D} is the ith data stream in the transmission path at (T) + 1) Periodic data request amount, P( _n is the allocated bandwidth of the transmission path, A is the safe use bandwidth of the transmission path as a percentage of the allocated bandwidth, and (P x A) is the safe use of the transmission path in the Tth period The bandwidth (that is, the bandwidth threshold), P _{s; m} is the data transmission amount of the i-th data stream of the transmission path in the T-th period, and P _s is the total data transmission amount of the transmission path in the T-th cycle.

When the total amount of data requests of the transmission path is greater than the set bandwidth threshold, and the total amount of data transmission of the transmission path is less than the bandwidth threshold, the data transmission amount and the data request amount according to the current period of the data stream And the total amount of data transmission and the total amount of data requests of the transmission path in the current period, the allocated bandwidth of the transmission path, determining the data request quantity increment value of the data stream in the current period, and requesting the data according to the data stream. The quantity increment value and the data transmission amount of the data stream in the current period, and the data request quantity of the data stream in the next period is determined, for example, the following formula can be used.

(2) Obtaining; or, determining the data according to the data transmission amount and the data request amount of the data stream in the current period, the total data transmission amount of the transmission path in the current period, the total data request amount, and the allocated bandwidth of the transmission path. The percentage of the data request volume increment in the current period, and the data request amount of the data stream in the next period is determined according to the data request amount increment percentage of the data stream and the data transmission amount of the data stream in the current period. , can be obtained by using the following formula (3). Ρρ,.(τ+ι) = PS,.(T) + APs r) = PS,.(T) ⁺

In the formula (2), Ρ _{Ρ +υ} is the data request amount of the (i + 1)th cycle of the i-th data stream in the transmission path, and P _SA is the i-th data stream in the transmission path. The amount of data sent in the Tth period, P _P ^ is the amount of data request in the Tth period of the i th data stream in the transmission path, and P _pm is the total amount of data requests in the T period of the transmission path, _{(1) )} is the total amount of data transmission in the T period of the transmission path, _τ ) is the allocated bandwidth of the transmission path, Α is the percentage of the safe use bandwidth of the transmission path to the allocated bandwidth, and (PxA) is the security of the transmission path in the T period Use bandwidth (that is, bandwidth threshold).

Τρ _; (τ+ι) ~ PS _; (T) ⁺ ([(3⁄4Γ) " Ps ( VPs (Τ)] / [∑ (3⁄4Γ) " Ps ( VPs (τ)]} ^χ [( 尸^x - A ( r)] In Equation (3), Ρ _{Ρ +ϋ} is the data request amount of the i-th data stream in the next cycle in the transmission path, P _s;m is the i-th data stream at the current The amount of data transmission in the period, ^ is the data request amount of the i-th data stream in the current period, ₍₁₎ is the total amount of data transmission of the transmission path in the current period, and P is the transmission path Allocating bandwidth, A is the percentage of the safe use bandwidth of the transmission path to the allocated bandwidth, and (PxA) is the safe use bandwidth of the transmission path in the current period, and the secure use bandwidth is the bandwidth threshold.

In the above process step 104, the method further includes the following steps:

Determining whether to access the data stream according to the guaranteed bandwidth of the data stream that is requested to be accessed and the idle bandwidth of the transmission path, specifically: determining whether the current idle bandwidth of the transmission path (ie, the unused bandwidth in the allocated bandwidth) is greater than or equal to The guaranteed bandwidth of the data stream, if yes, determines that the data stream can be accessed, if otherwise it is determined that the data stream cannot be accessed.

Preferably, in order to avoid the problem that the data stream is lost during the data transmission process due to the complete occupation of the bandwidth of the transmission path, to improve the reliability and security of the data stream in the data transmission, in the above step 104, according to the request The guaranteed bandwidth of the incoming data stream and the idle bandwidth of the transmission path, determining whether to access the data stream, specifically: determining the idle bandwidth of the current secure use of the transmission path (ie, the unused bandwidth in the secure use bandwidth of the transmission path) Is it greater than or equal? The guaranteed bandwidth of the data stream, if yes, determines that the data stream can be accessed, if otherwise it is determined that the data stream cannot be accessed.

Preferably, the foregoing step 104 further includes: when receiving the data flow access request on the transmission path, determining, according to the data flow access request, a data flow type of the data stream requested to be accessed, and determining according to the determined The data stream type determines the guaranteed bandwidth corresponding to the data stream. Data stream types can include custom data streams, streaming media data, real-time voice data streams, wireless link control flows, real-time transport protocol streams, and background service data streams. The data stream type is different, and the corresponding guaranteed bandwidth is also different. For example, for the QoS data stream, the corresponding guaranteed bandwidth is the lowest bandwidth that satisfies the QoS of the data stream transmission; for the non-QoS data stream, the corresponding Guaranteed bandwidth is the lowest bandwidth in its encoding mode.

In the embodiment of the present invention, for a TDMA system, since multiple data streams in the system share the same time slot, the throughput of the multiple data streams sharing the same time slot is limited by the allocated bandwidth of the time slot, in order to ensure the TDMA system and Other wireless access systems are consistent. In a TDMA system, bandwidth resources should be allocated according to time slot allocation and record guaranteed bandwidth. When the data stream occupies a new time slot, the idle bandwidth from the new time slot (the idle time) The bandwidth may be an unused bandwidth in the allocated bandwidth of the time slot, or may be a bandwidth that is not used in the secure use bandwidth of the time slot. If the data stream D _al and the data stream D _a2 share the time slot S _a , the allocated bandwidth corresponding to the time slot S _a is, the throughput of the data stream D _al is P _Dal , and the throughput of the data stream D _a2 is P _Da2 ; the art will know _{_{(? .. 1 +?] ¾2}} ) <8 ;;, therefore, the time slot corresponding to S _a bandwidth guaranteed bandwidth, sharing the time slot S _a data stream and the data stream D _al D _a2 The corresponding throughput is less than or equal to the guaranteed bandwidth of the slot S _a .

Preferably, in order to ensure uniformity of resource allocation of each radio access system, in the embodiment of the present invention, the user cannot change the actual throughput at will, and only when the network end consent is obtained, the actual throughput can be changed. For example, the user cannot arbitrarily change the encoding mode of the data packet sent by the user. In the foregoing process step 102, determining the total amount of data transmission and the total amount of data requests in the current period of the transmission path may be described by a more detailed method flow as shown in FIG. 2. In the above process step 103, it is determined that the data request amount of each data stream in the next transmission path in the next cycle can be described by a more detailed method flow as shown in FIG. The above process step 104 accesses the data stream, which can be described by a more detailed method flow as shown in FIG.

Referring to FIG. 2, it is a flowchart of a method for determining a total amount of data transmission and a total amount of data requests in a current period (assuming that the current period is the Tth period) in the embodiment of the present invention, where the method includes:

Step 201: During the current period, if there is a data stream in the transmission path for data transmission or reception, the data amount of the transmitted or received data is recorded in real time.

Step 202: Accumulate the recorded data amount in real time into the data transmission amount corresponding to the data stream.

Step 203: Determine whether the data encoding mode of the data stream changes. If yes, execute step 204. Otherwise, perform step 206.

Step 204: Determine an amount of data that needs to be increased after the data stream data encoding mode is changed, and record the amount of data that needs to be increased.

Step 205: Accumulate the amount of data recorded in step 204 into the data request amount corresponding to the data stream.

Step 206: At the end of the current period, accumulating the data transmission amount corresponding to all the data streams in the transmission path, and the obtained accumulated value is the total data transmission amount of the transmission path in the current period; and all the data in the transmission path The data request amount corresponding to the stream is accumulated, and the obtained accumulated value is the total amount of data requests of the transmission path in the current period.

Step 207: Clear the data transmission amount and the data request amount corresponding to each data stream in the recorded transmission path, and enter the next cycle (ie, the (T+1)th cycle).

In the above process step 204, it is determined that the data stream data coding mode needs to be increased after the change The amount of data added includes: It is assumed that the total amount of data blocks sent by the data stream in the current period is W, and the encoding manner of the data stream is adjusted from the first encoding mode to the second encoding mode, and the data segment length corresponding to the first encoding mode For A, the length of the data segment of the second coding mode is z ₂ , then the amount of data ΔΡ to be increased can be determined according to the following formula (4):

ΔΡ = Νχ (| - |) Equation (4) In Equation (4), ΔΡ is the determined amount of data to be increased, W is the total amount of data blocks sent by the data stream in the current period, and A is the first encoding method. Corresponding data segment length, ₂ is the data segment length of the second encoding mode.

3 is a flowchart of a method for determining a data request amount of each data stream in a next cycle in the transmission path according to an embodiment of the present invention, where the method includes:

Step 301: Determine whether the total data request of the transmission path is greater than the set bandwidth threshold. If yes, go to step 302. Otherwise, go to step 305.

Step 302: Determine whether the total data transmission amount of the transmission path is greater than the set bandwidth threshold. If yes, go to step 303. Otherwise, go to step 304.

Step 303: Determine the data request amount of each data stream in the next cycle in the next cycle by using the foregoing formula (1).

Step 304: Determine the data request amount of the next data stream of the transmission path in the next cycle by using the foregoing formula (2) or (3).

Step 305, ending the process.

4 is a flowchart of a method for accessing a data stream according to an embodiment of the present invention. The method includes: Step 401: Receive a data stream access request on a transmission path.

Step 402: Determine, according to the received data stream access request, a data stream type of the data stream requested to be accessed.

Step 403: Determine, according to the determined data flow type, a guaranteed bandwidth corresponding to the data flow requested to be accessed. Step 404: Determine whether the idle bandwidth of the transmission path is greater than or equal to the guaranteed bandwidth of the data stream. If yes, determine that the data stream can be accessed and perform step 405. Otherwise, determine that the data stream cannot be accessed and perform step 406. .

Step 405: Allocate a corresponding guaranteed bandwidth to the data stream from the idle bandwidth of the transmission path.

Step 406, ending the process.

Based on the same concept of the foregoing method, the embodiment of the present invention further provides a multi-mode controller, and the structure of the multi-mode controller is as shown in FIG. 5.

5 is a schematic structural diagram of a multimode controller according to an embodiment of the present invention, where the multimode controller includes:

a multi-mode control unit 51, configured to determine, for each transmission path, a data transmission amount and a data request amount of each data stream in the current transmission channel in a current period; and a data transmission amount according to each data flow in the transmission path And the data request amount, determining the total amount of data transmission and the total amount of data requests in the current period of the transmission path; and, according to the data transmission amount and the data request amount of the current period in each data stream, the transmission path is in the current period The total amount of data transmission and the total amount of data requests, the allocated bandwidth of the transmission path, and the amount of data requests for each data stream in the next cycle in the next cycle.

According to the function division, the above multimode control unit 51 may include:

The first determining subunit 511 is configured to determine, for each transmission path, a data transmission amount and a data request amount of each data stream in the transmission path in the current period.

The second determining sub-unit 512 is connected to the first determining sub-unit 511, and configured to determine, according to the data sending amount and the data request quantity of each data stream determined by the first determining sub-unit 511, that the transmission path is in the current cycle. The total amount of data sent and the total number of data requests.

The data request amount determining subunit 513 is connected to the second determining subunit 512 for using the data sending amount and the data request amount in the current period according to each data stream, and the transmission path is in the current period. The total amount of data transmission and the total amount of data requests, the allocated bandwidth of the transmission path, and the amount of data requests for each data stream in the next cycle in the next cycle.

Preferably, the second determining sub-unit 512 is specifically configured to: accumulate data transmission amounts of all data streams in the transmission path in a current period, and obtain an accumulated value determined as the transmission path in a current period. The total amount of data is sent; the data requests of all the data streams in the transmission path are accumulated in the current period, and the obtained accumulated value is determined as the total amount of data requests of the transmission path in the current period.

Preferably, the data request amount determining sub-unit 513 determines the data request amount of each data stream in the transmission path in the next cycle according to the foregoing formula (1), or the formula (2), or the formula (3), and details are not described herein again.

Preferably, the multimode controller further includes:

The transmission control unit 52 is connected to the multimode control unit 51, and configured to receive a data stream access request on the transmission path, and determine an access station according to the guaranteed bandwidth of the data stream requested to be accessed and the idle bandwidth of the transmission path. When the data stream is described, a corresponding guaranteed bandwidth is allocated for the data stream accessed by the request from the idle bandwidth of the transmission path.

The above transmission control unit 52 may include:

The receiving subunit 521 is configured to receive a data stream access request on the transmission path.

The determining subunit 522 is connected to the receiving subunit 521 for determining whether to access the data stream according to the guaranteed bandwidth of the data stream accessed and the idle bandwidth of the transmission path.

The resource allocation sub-unit 523 is connected to the determining sub-unit 522, and configured to allocate, according to the idle bandwidth of the transmission path, the data stream that is requested to be accessed, when the determining sub-unit 522 determines to access the data stream. Guaranteed bandwidth.

Preferably, the determining sub-unit 522 is specifically configured to: determine whether the idle bandwidth of the transmission path is greater than or equal to the guaranteed bandwidth of the data stream, and if yes, determine that the data stream can be accessed, if not determined to not access The data stream; the idle bandwidth is an unused bandwidth in the allocated bandwidth of the transmission path, or the idle bandwidth is in a secure use bandwidth in the transmission path. Unused bandwidth.

The connection relationship between the multimode controller in the embodiment of the present invention and the multimode base station in the network system can be as shown in FIG. 6. The multimode base station includes multiple single-standard base stations, and the multi-mode controller and the multi-mode base station pass through multiple The strip transmission path performs data transmission, and the structures of the multimode control unit 51 and the transmission control unit 52 in the multimode controller are respectively shown in FIG.

The technical solution of the invention can be applied to various wireless communication networks, such as WCDMA system, CDMA

(Code Division Multiple Access) system, TD-SCDMA system, TDMA system, FDMA (Frequency Division Multiple Access) system, OFDMA

(Orthogonal Frequency Division Multiple Access) system, SC-FDMA (Single Carrier Frequency Division Multiple Access) system, GSM system, LTE system, and the like.

Using the technical solution of the present invention, for each transmission path, determining the data transmission amount and the data request amount of each data stream in the transmission path in the current period; according to the data transmission amount of each data stream in the transmission path The amount of data request, determine the total amount of data transmission and the total number of data requests in the current period of the transmission path; according to the data transmission amount and data request amount of each data stream in the current period, and the total data transmission period of the transmission path in the current period The amount and amount of data requests, the allocated bandwidth of the transmission path, determine the amount of data requests for each data stream in the next cycle in the next cycle. According to the technical solution of the present invention, on the one hand, for the network that is commonly transmitted by the wireless access system, the data flow of each wireless access system is based on the data transmission amount and the data request amount and the transmission of each data stream in the current cycle. The total amount of data sent in the current period and the total amount of data requests, the allocated bandwidth of the transmission path, and the amount of data request for each data stream in the next period in the transmission path, which is consistent with the data bandwidth of each wireless access system. Demand and transmission rate; and, avoiding high-throughput data streams occupying more usable bandwidth resources, because the high-throughput data stream is close to the throughput upper limit, so the request for increased data requests is smaller. The available bandwidth resources are relatively small, thus ensuring that low-throughput data streams can be obtained. The bandwidth resources, in turn, ensure the balance of resource allocation among the wireless access systems; on the other hand, the fairness of the allocated bandwidth resources between the data streams is ensured, and the data flow with a larger amount of data transmission is relatively more distributed. A large amount of available bandwidth resources allocates relatively small available bandwidth resources for data streams with a small amount of data transmission, thereby improving resource utilization and improving system throughput. The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications of the invention

Claims

Claim

A method for resource allocation, comprising:

2. The method according to claim 1, wherein the determining the total amount of data transmission and the total number of data requests in the current period of the transmission path includes:

Accumulating the data transmission amount of all the data streams in the transmission path in the current period, and the obtained accumulated value is determined as the total data transmission amount of the transmission path in the current period; all data in the transmission path is to be The data request amount in the current period is accumulated, and the obtained accumulated value is determined as the total amount of data requests of the transmission path in the current period.

The method according to claim 1, wherein the determining the data request amount of each data stream in the next cycle in the next cycle comprises:

When the total number of data requests of the transmission path is greater than the set bandwidth threshold, and the total amount of data transmission of the transmission path is greater than the bandwidth threshold, according to the security use bandwidth in the current period and the current period of the data stream. The amount of data and the total amount of data transmission of the transmission path in the current period determine the amount of data request for the data stream in the next period.

4. The method according to claim 3, wherein the determining the data request amount of the data stream in the next cycle is obtained according to the following formula:

Ρρ _; ·(τ+υ - (PA)x (P _{S (T)} /P _S(r) )

Where Ρ _Ρ .„ ₊₁₎ is the amount of data request for the i-th data stream in the next cycle in the next cycle, P is the allocated bandwidth of the transmission path, A is the percentage of the safe use bandwidth of the transmission path to the allocated bandwidth, and (P x A) is the safe use bandwidth of the transmission path in the current period, and the secure use bandwidth is the bandwidth The value, P _s;m is the data transmission amount of the ith data stream in the current period, and P _S(r) is the total data transmission amount of the transmission path in the current period.

When the total amount of data requests of the transmission path is greater than the set bandwidth threshold, and the total amount of data transmission of the transmission path is less than the bandwidth threshold, the data transmission amount and the data request amount according to the current period of the data stream And the total amount of data transmission and the total amount of data requests of the transmission path in the current period, the allocated bandwidth of the transmission path, determining the data request quantity increment value of the data stream in the current period, and requesting the data according to the data stream. The quantity increment value and the data transmission amount of the data stream in the current period, and determining the data request quantity of the data stream in the next period;

Or determining, according to the data sending amount and the data request amount of the data stream in the current period, the total data sending amount of the transmission path in the current period, the total data request amount, and the allocated bandwidth of the transmission path, determining that the data stream is in the current period. The percentage of the data request volume increment, and based on the data request volume increment percentage of the data stream and the data stream amount of the data stream in the current period, determine the data request amount of the data stream in the next cycle.

The method according to claim 5, wherein the data request quantity increment value according to the data stream and the data transmission quantity of the data stream in the current period determine the data of the data stream in the next period. The requested amount is obtained according to the following formula:

Ρρ _; .(τ+ΐ) ~ Ps _F (T) ⁺

(τ) - PS (T) )] x [( corpse ^χ) - corpse s (r)]

Wherein, P _{P +1)} is the data request amount of the i-th data stream in the next cycle in the transmission path, and p _{S; (T)} is the data transmission amount of the i-th data stream in the current cycle, ρ _ΐΛΤ ) is the data request amount of the i-th data stream in the current period, Ρ _{ρ (τ)} is the total data request of the transmission path in the current period, and P _sm is the current period of the transmission path The total amount of data sent, P is the The allocated bandwidth of the transmission path, A is the percentage of the safe use bandwidth of the transmission path as a percentage of the allocated bandwidth.

(PxA) is a safe use bandwidth of the transmission path in the current period, and the secure use bandwidth is the bandwidth width value;

And/or, the data request quantity increment percentage according to the data stream and the data sending quantity of the data stream in the current period, determining the data request quantity of the data stream in the next period, according to the following formula:

Ρρ _; .(τ+ΐ) ~ PS _; (T) ⁺ ([(3⁄4Γ) " Ps ( VPs (Τ)] / [∑ (3⁄4Γ) " Ps ( VPs (τ)]} ^χ [( 尸^x - A (r) where Ρ _{Ρ +1)} is the data request amount of the i-th data stream in the next cycle in the transmission path, p _{S; (T)} is the i-th data stream in the current cycle The data transmission amount, ρ _ΐΛΤ ) is the data request amount of the ith data stream in the current period, P _S(T) is the total data transmission amount of the transmission path in the current period, and P is the transmission path. The allocated bandwidth, A is the percentage of the safe use bandwidth of the transmission path to the allocated bandwidth, and (PxA) is the safe use bandwidth of the transmission path in the current period, and the secure use bandwidth is the bandwidth threshold.

The method according to any one of claims 1 to 6, wherein the determining, after the data request of the next period of each data stream in the transmission path, further comprises:

Receiving a data flow access request on the transmission path;

When the access to the data stream is determined according to the guaranteed bandwidth of the data stream requested to be accessed and the idle bandwidth of the transmission path, the data stream is allocated a corresponding guaranteed bandwidth from the idle bandwidth of the transmission path.

The method of claim 7, wherein after the receiving the data stream access request on the transmission path, the method further includes:

Determining whether the idle bandwidth of the transmission path is greater than or equal to the guaranteed bandwidth of the data flow, if yes, determining that the data flow can be accessed, if otherwise determining that the data flow is not accessed; the idle bandwidth is the transmission The unused bandwidth of the allocated bandwidth of the path, or the idle bandwidth is the unused bandwidth of the secure used bandwidth in the transmission path.

9. A multimode controller, comprising:

a multi-mode control unit, configured to determine, for each transmission path, a data transmission amount and a data request amount of each data stream in the transmission path in a current period; and a data transmission amount according to each data stream in the transmission path The amount of data request, determining the total amount of data transmission and the total amount of data requests in the current period of the transmission path; and, according to the data transmission amount and data request amount of the current period of each data stream, and the data of the transmission path in the current period The total amount of transmissions and the total number of data requests, the allocated bandwidth of the transmission path, and the amount of data requests for each data stream in the next cycle in the next cycle.

10. The multimode controller of claim 9, wherein the multimode control unit comprises:

a first determining subunit, configured to determine, for each transmission path, a data transmission amount and a data request amount of each data stream in the transmission path in a current period;

a second determining subunit, connected to the first determining subunit, configured to determine, according to the data sending amount and the data request quantity of each data stream determined by the first determining subunit, that the transmission path is in a current period The total amount of data sent and the total number of data requests;

a data request amount determining subunit, connected to the second determining subunit, for transmitting data amount and data request amount in the current period according to each data stream, data sending total amount and data request of the transmission path in the current period The total amount, the allocated bandwidth of the transmission path, determines the amount of data request for each data stream in the next cycle in the next cycle.

The multi-mode controller according to claim 10, wherein the second determining sub-unit is specifically configured to:

The multimode controller according to claim 10, wherein the data request amount determining subunit is specifically configured to:

The multimode controller according to any one of claims 9 to 12, further comprising:

a transmission control unit, connected to the multi-mode control unit, configured to receive a data stream access request on the transmission path, and determine an access station according to a guaranteed bandwidth of the data stream requested to be accessed and an idle bandwidth of the transmission path When the data stream is described, a corresponding guaranteed bandwidth is allocated for the data stream accessed by the request from the idle bandwidth of the transmission path.

The multimode controller according to claim 14, wherein the transmission control unit comprises:

a receiving subunit, configured to receive a data stream access request on the transmission path;

a determining subunit, connected to the receiving subunit, configured to determine whether to access the data stream according to a guaranteed bandwidth of the data stream requested to be accessed and an idle bandwidth of the transmission path;

a resource allocation subunit, connected to the determining subunit, configured to allocate, according to the idle bandwidth of the transmission path, the data flow requested by the requesting subunit when the determining subunit determines to access the data stream Guaranteed bandwidth.

The multi-mode controller according to claim 15, wherein the determining sub-unit is specifically configured to: