WO2016074419A1 - 下行带宽分配方法及装置 - Google Patents

下行带宽分配方法及装置 Download PDF

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Publication number
WO2016074419A1
WO2016074419A1 PCT/CN2015/075576 CN2015075576W WO2016074419A1 WO 2016074419 A1 WO2016074419 A1 WO 2016074419A1 CN 2015075576 W CN2015075576 W CN 2015075576W WO 2016074419 A1 WO2016074419 A1 WO 2016074419A1
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Prior art keywords
downlink bandwidth
allocated
bandwidth
mode
downlink
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PCT/CN2015/075576
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English (en)
French (fr)
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杨勇
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中兴通讯股份有限公司
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Priority to EP15859033.1A priority Critical patent/EP3220702B1/en
Publication of WO2016074419A1 publication Critical patent/WO2016074419A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points

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  • the present invention relates to the field of communications, and in particular, to a downlink bandwidth allocation method and apparatus.
  • the operator usually plans an end-to-end transmission bandwidth of the RNC to the NodeB for each station, that is, the Iub E2E transmission bandwidth (for convenience of description, the bandwidth is simply referred to as B E2E , and The transmission bandwidth is tested and verified.
  • the Iub E2E transmission bandwidth is an important parameter.
  • the RNC needs to correctly configure this parameter according to the actual bandwidth resources of the Iub interface transmission network. On the RNC side, this parameter is called the path bandwidth of the site.
  • the path bandwidth configuration value of a site is larger than the actual bandwidth, the Iub interface of the site is likely to have an SCTP link, which seriously affects wireless services and causes network faults.
  • the bandwidth configuration value of a site is smaller than the actual value, the bandwidth of the Iub interface cannot be fully utilized, and the bandwidth of the valuable Iub interface is wasted.
  • FIG. 1 is a schematic diagram of a network connection of a UL multi-mode base station according to the related art. As shown in FIG. 1 , various modes on a multi-mode base station are generally co-transmitted, and the so-called multi-mode co-transmission refers to a data stream transmission path of each base station. There are coincidences, and various systems have competition for the use of mobile backhaul network bandwidth resources.
  • the multimode base station is a UMTS/LTE base station, and the UL multimode base station is simultaneously connected with the UMTS controller and the LTE EPC network.
  • the network elements such as the UMTS core network SGSN and the GGSN are omitted.
  • the eNB is a UL multi-mode base station.
  • the eNB is connected to the Layer 2 switch TC through one-hop or multi-hop microwave.
  • the eNB and the UMTS RNC cooperate to provide UMTS services.
  • the eNB and the EPC cooperate to provide LTE services.
  • a part of the eNB (such as eNB1 in FIG. 1) uses M1 as the primary gateway.
  • the path of the UMTS data stream of the eNB1 is eNB1-TC-TA-M1-UMTS RNC; the path of the LTE data stream of the eNB1 is eNB1- TC-TA-M1-R1-EPC.
  • the UMTS data flow path and the LTE data flow path are coincident in the eNB1-TC-TA-M1 segment.
  • the data sent by eNB1 is offloaded after reaching M1, where the UMTS data is sent to the UMTS RNC directly connected to M1, and the LTE data is first sent to R1 and then forwarded by R1 to the EPC; in the downstream direction, The UMTS data stream sent by the UMTS RNC to the eNB1 and the LTE data stream sent by the EPC to the eNB are transmitted to the eNB1 along the coincident transmission path M1-TA-TC-eNB1 after M1 convergence.
  • the transmission path eNB1-TC-TA-M1 from eNB1 to M1 is shared by UMTS and LTE.
  • the Ethernet interface of the eNB is divided into two VLANs, VLAN1 and VLAN2, of which VLAN1 carries UMTS service, VLAN 2 carries LTE services.
  • the downlink traffic of the base station is always much larger than the uplink traffic. Therefore, the downlink traffic of each standard competes for the downlink bandwidth.
  • UMTS RNC For downlink traffic, there are 2 data sources per base station, one is UMTS RNC, and the other is LTE EPC (including logical network elements are SGW of the media plane and MME of the control plane), UMTS RNC and LTE EPC It is two different logical network elements, and UMTS and LTE must compete for the use of transmission bandwidth resources.
  • the transmission equipment on the transmission path from the base station to the controller usually has a transmission bandwidth bottleneck.
  • the operator usually plans the end-to-end transmission bandwidth from the base station to the controller for each base station (for the convenience of description)
  • the bandwidth is simply referred to as B E2E )
  • the sum of UMTS data traffic from UMTS RNC to eNB1 (hereinafter referred to as S U ) and data traffic from EPC to eNB1 (hereinafter referred to as S LTE ) is greater than B.
  • S U UMTS data traffic from UMTS RNC to eNB1
  • S LTE data traffic from EPC to eNB1
  • a downlink bandwidth of 20 Mbps can be planned for the UMTS data of the eNB1, and a downlink bandwidth of 30 Mbps is planned for the LTE data of the eNB1.
  • a path bandwidth of 20 Mbps is configured for the eNB1 network element on the UMTS RNC, and 30 Mbps is configured for the eNB1 network element on the EPC.
  • Path bandwidth under the static allocation of such downlink bandwidth, for eNB1,
  • the eNB1 site does not experience transmission congestion.
  • the above downlink bandwidth static allocation method can avoid transmission congestion, but the utilization of B E2E bandwidth may not be high. Because UM1 users and LTE users accessing the site dynamically change with time for a certain site eNB1, dynamically changing user-triggered S U and S LTE are also changing with time.
  • the present invention provides a method and a device for allocating a downlink bandwidth, so as to solve at least the problem that the multi-mode base station competes in the related mode to use the downlink bandwidth resource to cause transmission congestion or waste of bandwidth resources.
  • a downlink bandwidth allocation method including: acquiring remaining downlink bandwidth of a base station after using the second mode or the first mode downlink traffic, and for the first system and the second system Pre-allocated downlink bandwidth; performing downlink bandwidth allocated for the first system and the second system according to the remaining downlink bandwidth and the downlink bandwidth pre-allocated for the first system and the second system Adjustment.
  • adjusting the downlink bandwidth allocated for the first mode and the second mode includes: according to the remaining downlink bandwidth, and the downlink bandwidth pre-allocated for the first mode and the second mode
  • the predetermined allocation principle adjusts the downstream bandwidth allocated for the various modes.
  • adjusting, according to the remaining downlink bandwidth, and the downlink bandwidth pre-allocated for the first mode and the second mode including: using the remaining downlink bandwidth after using the second mode downlink traffic Comparing the amount of the downlink bandwidth of the first mode pre-allocation, and determining the larger one of the comparison results as the downlink bandwidth allocated by the first mode; or, the remaining downlink bandwidth after using the downlink traffic of the first mode Comparing the amount of downlink bandwidth pre-allocated by the second system, the larger of the comparison results is determined as the downlink bandwidth allocated by the second mode.
  • a downlink bandwidth allocation method including: periodically detecting remaining downlink bandwidth after use of the first mode and the second mode downlink traffic, and for the first system and the Determining the downlink bandwidth of the second mode pre-allocated; and reporting the remaining downlink bandwidth, and the downlink bandwidth pre-allocated for the first mode and the second mode to the radio network controller RNC periodically, where And the remaining downlink bandwidth, and the downlink bandwidth pre-allocated for the first system and the second system, are used by the RNC to adjust downlink bandwidth allocated for the first system and the second system.
  • the method further includes: receiving, sending, by the RNC And an adjustment result of adjusting the downlink bandwidth allocated for the multiple modes according to the remaining downlink bandwidth and the downlink bandwidth pre-allocated for the first system and the second system; according to the received adjustment The result is data transfer.
  • a downlink bandwidth allocation apparatus including: an obtaining module, configured to acquire a remaining downlink bandwidth of a base station after using the second mode or the first mode downlink traffic, and to be the first standard And the second mode pre-allocated downlink bandwidth; the adjusting module is configured to be the first standard according to the remaining downlink bandwidth, and the downlink bandwidth pre-allocated for the first system and the second system And adjusting the downlink bandwidth allocated by the second system.
  • the adjustment module includes: an adjustment submodule, configured to determine, according to the remaining downlink bandwidth, a downlink bandwidth pre-allocated for the first system and the second system according to a predetermined allocation principle The downstream bandwidth allocated by one system and the second system is adjusted.
  • the adjustment submodule includes at least one of the following: the first determining unit is configured to compare the remaining downlink bandwidth after the second system downlink traffic usage with the downlink bandwidth amount pre-allocated for the first system The larger one of the comparison results is determined as the downlink bandwidth allocated by the first mode; or the second determining unit is configured to set the remaining downlink bandwidth after using the first mode downlink traffic to the second The system pre-allocated the amount of downlink bandwidth is compared, and the larger of the comparison results is determined as the downlink bandwidth allocated by the second system.
  • a downlink bandwidth allocation apparatus comprising: a detection module configured to periodically detect remaining downlink bandwidth after use of the first mode and the second mode downlink traffic, and a system and the second mode pre-allocated downlink bandwidth; the reporting module is configured to periodically detect the remaining downlink bandwidth and the downlink bandwidth pre-allocated for the first system and the second system Reporting to the radio network controller RNC, wherein the remaining downlink bandwidth, and the downlink bandwidth pre-allocated for the first system and the second system are used for the RNC pair as the first system and the first The downlink bandwidth allocated by the two modes is adjusted.
  • the device further includes: a receiving module, configured to receive, according to the remaining downlink bandwidth, sent by the RNC, and a downlink bandwidth pair pre-allocated for the first system and the second system, And a data transmission module configured to perform data transmission according to the received adjustment result.
  • a receiving module configured to receive, according to the remaining downlink bandwidth, sent by the RNC, and a downlink bandwidth pair pre-allocated for the first system and the second system
  • a data transmission module configured to perform data transmission according to the received adjustment result.
  • the remaining downlink bandwidth after the base station is used in the first mode or the second mode downlink traffic, and the downlink bandwidth pre-allocated for the first system and the second system are adopted; according to the remaining downlink bandwidth, The downlink bandwidth allocated for the first system and the second system is adjusted for the downlink bandwidth pre-allocated by the first system and the second system, and the multi-mode base station competition in the related art is solved.
  • the use of downlink bandwidth resources causes transmission congestion or waste of bandwidth resources. When congestion is avoided, the utilization of downlink bandwidth is improved, thereby improving the user experience.
  • FIG. 1 is a schematic diagram of a UL multi-mode base station networking connection according to the related art
  • FIG. 2 is a flowchart 1 of a downlink bandwidth allocation method according to an embodiment of the present invention.
  • FIG. 3 is a second flowchart of a method for allocating a downlink bandwidth according to an embodiment of the present invention
  • FIG. 4 is a block diagram 1 of a downlink bandwidth allocation apparatus according to an embodiment of the present invention.
  • FIG. 5 is a block diagram 1 of a downstream bandwidth allocation apparatus in accordance with a preferred embodiment of the present invention.
  • FIG. 6 is a block diagram 2 of a downlink bandwidth allocation apparatus in accordance with a preferred embodiment of the present invention.
  • FIG. 7 is a block diagram 2 of a downlink bandwidth allocation apparatus according to an embodiment of the present invention.
  • FIG. 8 is a block diagram 3 of a downlink bandwidth allocation apparatus in accordance with a preferred embodiment of the present invention.
  • FIG. 9 is a flow chart of Iub audit response signaling according to an embodiment of the present invention.
  • FIG. 2 is a flowchart 1 of a downlink bandwidth allocation method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
  • Step S202 acquiring remaining downlink bandwidth of the base station after the second mode or the first mode downlink traffic is used, and pre-allocating the downlink bandwidth for the first mode and the second mode;
  • Step S204 adjusting the downlink bandwidth allocated for the first system and the second system according to the remaining downlink bandwidth and the downlink bandwidth pre-allocated for the first system and the second system.
  • the base station refers to a multi-mode base station, and includes two wireless standards to solve
  • the multi-mode base station competes in different modes of competition to use the downlink bandwidth resource to cause transmission congestion or waste of bandwidth resources, and improves the utilization of the downlink bandwidth while avoiding congestion, thereby achieving the effect of improving the user experience.
  • adjusting the downlink bandwidth allocated for the first system and the second system may include: The remaining downlink bandwidth, and the downlink bandwidth pre-allocated for the first mode and the second mode, adjust the downlink bandwidth allocated for the plurality of modes according to a predetermined allocation principle. It should be noted that not only the downlink bandwidth in the first system and the second system can be adjusted, but also the downlink bandwidth of two or more systems can be adjusted.
  • the adjustment manner may include the following three types: The remaining downlink bandwidth is compared with the amount of downlink bandwidth configured in the first system in the plurality of systems, and the larger one of the comparison results is determined as the downlink bandwidth allocated by the first system; and the downlink is used according to the multiple standards. After the bandwidth, the remaining downlink bandwidth is determined, and whether the downlink bandwidth required by the first system is smaller than the remaining downlink bandwidth after using the downlink bandwidth in the multiple systems, and if the determination result is yes, the multiple formats are used. The downlink bandwidth in the system with the downlink bandwidth that is closest to the downlink bandwidth required by the first system after the downlink bandwidth is determined as the downlink bandwidth allocated by the first system; and the remaining bandwidth is used after using the downlink bandwidth according to the multiple standards.
  • Downstream bandwidth determining whether the downlink bandwidth required by the first system is smaller than the downlink bandwidth after using the multiple standards The remaining downlink bandwidth, if the determination result is negative, determines the downlink bandwidth that is the closest to the downlink bandwidth required by the first standard after using the downlink bandwidth in the multiple systems. The downstream bandwidth allocated for this first system.
  • Adjusting the remaining downlink bandwidth according to the remaining downlink bandwidth and the pre-allocated downlink bandwidth of the first system and the second system may include: using the remaining downlink bandwidth after using the second mode downlink traffic as the first Comparing the amount of downlink bandwidth pre-allocated by one system, determining the larger one of the comparison results as the downlink bandwidth allocated by the first system; or, the remaining downlink bandwidth after using the downlink traffic of the first mode is the second The system pre-allocated the amount of downlink bandwidth is compared, and the larger of the comparison results is determined as the downlink bandwidth allocated by the second system.
  • FIG. 3 is a flowchart 2 of a downlink bandwidth allocation method according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:
  • Step S302 periodically detecting remaining downlink bandwidth after using the first mode and the second mode downlink traffic, and pre-allocating downlink bandwidth for the first mode and the second mode;
  • Step S304 the remaining downlink bandwidth that is detected, and the downlink bandwidth pre-allocated for the first mode and the second mode are periodically reported to the radio network controller RNC, where the remaining downlink bandwidth is A system and the second mode pre-allocated downlink bandwidth are used by the RNC to adjust the downlink bandwidth allocated for the first mode and the second mode.
  • the problem that the multi-mode base station competes with the downlink bandwidth resources in the related art to cause transmission congestion or waste of bandwidth resources is solved, and the congestion utilization is improved, the utilization of the downlink bandwidth is improved, and the user experience is improved. effect.
  • the method further includes: receiving, according to the remaining downlink bandwidth, the RNC sends, And an adjustment result of adjusting a downlink bandwidth allocated for the multiple modes for the downlink bandwidth pre-allocated by the first system and the second system; and performing data transmission according to the received adjustment result.
  • FIG. 4 is a block diagram of a downlink bandwidth allocation apparatus according to an embodiment of the present invention. As shown in FIG. 4, the method includes: an obtaining module 42 and an adjusting module 44, The module is briefly described.
  • the obtaining module 42 is configured to obtain a remaining downlink bandwidth of the base station after the second mode or the first mode downlink traffic is used, and a downlink bandwidth pre-allocated for the first mode and the second mode;
  • the adjusting module 44 is configured to adjust the downlink bandwidth allocated for the first system and the second system according to the remaining downlink bandwidth and the downlink bandwidth pre-allocated for the first system and the second system.
  • FIG. 5 is a block diagram of a downlink bandwidth allocation apparatus according to a preferred embodiment of the present invention. As shown in FIG. 5, the adjustment module 44 includes:
  • the adjustment sub-module 52 is configured to perform, according to the predetermined allocation principle, the downlink bandwidth allocated for the first system and the second system according to the remaining downlink bandwidth and the downlink bandwidth pre-allocated for the first system and the second system according to a predetermined allocation principle. Adjustment.
  • the adjustment sub-module 52 includes at least one of the following:
  • the first determining unit 62 is configured to compare the remaining downlink bandwidth after using the second mode downlink traffic with the downlink bandwidth pre-allocated for the first system, and determine the larger one of the comparison results as the first standard The allocated downstream bandwidth; or,
  • the second determining unit 64 is configured to compare the remaining downlink bandwidth after using the first mode downlink traffic with the downlink bandwidth pre-allocated for the second system, and determine the larger one of the comparison results as the second standard The allocated downstream bandwidth.
  • FIG. 7 is a block diagram 2 of a downlink bandwidth allocation apparatus according to an embodiment of the present invention. As shown in FIG. 7, the method includes: a detection module 72 and a reporting module 74. Each module is briefly described.
  • the detecting module 72 is configured to periodically detect remaining downlink bandwidth after using the first mode and the second mode downlink traffic, and pre-allocating the downlink bandwidth for the first mode and the second mode;
  • the reporting module 74 is configured to periodically report the detected remaining downlink bandwidth and the downlink bandwidth pre-allocated for the first system and the second system to the radio network controller RNC, where the remaining The downlink bandwidth, and the downlink bandwidth pre-allocated for the first system and the second system, are used by the RNC to adjust downlink bandwidth allocated for the first system and the second system.
  • FIG. 8 is a block diagram 3 of a downlink bandwidth allocation apparatus according to a preferred embodiment of the present invention. As shown in FIG. 8, the apparatus further includes:
  • the receiving module 82 is configured to receive, according to the remaining downlink bandwidth, the downlink bandwidth that is sent by the RNC, and the downlink bandwidth pair that is pre-allocated for the first system and the second system, for the first system and the second system.
  • the data transmission module 84 is configured to perform data transmission according to the received adjustment result.
  • the embodiment of the present invention provides a dynamic downlink bandwidth allocation method for a multi-mode co-transmitted base station including UMTS, which improves end-to-end transmission bandwidth resource utilization while avoiding mobile backhaul network transmission congestion.
  • the UMTS-containing multimode co-transmission base station shares the mobile mobile backhaul transmission network.
  • the so-called multi-mode co-transmission refers to the overlapping of the data stream transmission paths of each base station.
  • the end-to-end bandwidth planned by the operator for a multimode co-transmission site according to the bandwidth resources of the mobile backhaul network is B E2E , and the bandwidth is allocated to UMTS and X according to the weight of m:n, that is, the bandwidth allocated by UMTS is B E2E. *m/(m+n), the bandwidth allocated by the X system is B E2E *n/(m+n).
  • the Iub Transmission Path bandwidth B E2E *m/(m+n) configured for the multimode site on the UMTS RNC side, and the UMTS RNC performs transmission bandwidth acceptance and backflow backpressure according to the Iub Transmission Path bandwidth.
  • the RNC calculates the actual available bandwidth based on the Available BandWidth and performs admission control and backpressure scheduling based on this bandwidth.
  • the downlink bandwidth utilization of the mobile backhaul network is improved (the downlink bandwidth utilization is 100%) while avoiding congestion of the backhaul network, and the downlink throughput and user experience of the user are improved.
  • This embodiment is applied to a shared mobile mobile backhaul transmission network of each system of a multimode common transmission base station (with another wireless system of X) including UMTS.
  • the UMTS RNC uses the path bandwidth configured for the base station network element as the threshold for transmission admission control and backpressure. The larger the path bandwidth, the more UMTS users access the corresponding base station, and the greater the downlink throughput of the UMTS service.
  • the end-to-end bandwidth planned by the operator for a multimode co-transmission site according to the bandwidth resource of the mobile backhaul network is B E2E
  • the bandwidth is allocated to UMTS and X according to the weight of m:n, that is, the bandwidth allocated by UMTS is B E2E.
  • the bandwidth allocated by the X system is B E2E *n/(m+n).
  • the Iub Transmission Path bandwidth B E2E *m/(m+n) configured for the multimode site on the UMTS RNC side, and the UMTS RNC performs transmission bandwidth acceptance and backflow backpressure according to the Iub Transmission Path bandwidth.
  • the multimode station counts the received traffic of the X system with a period T, and then calculates the available bandwidth of the UMTS according to the following formula:
  • the value is recorded in the custom field Available BandWidth in the NBAP audit response, and the Available BandWidth can be extended by extending the NBAP message.
  • FIG. 9 is a flow chart of Iub audit response signaling according to an embodiment of the present invention. As shown in FIG. 9, the information for announcing the UMTS available bandwidth to the UMTS RNC is shown in the audit response message in the figure.
  • NBAP The audit response message is defined in detail in the 3GPP 25.433 protocol.
  • the audit response message can be extended, and an OPTIONAL cell is added at the end of the Audit Response message.
  • the corresponding cell (IE) structure is shown in Table 1.
  • the RNC calculates the actual bandwidth value according to the following formula, that is,
  • the following is an example of a UMTS/LTE multimode base station.
  • the UMTS and LTE of the UL multi-mode base station share the Iub/S1 interface transmission, that is, the UMTS downlink data flow path and the LTE downlink data flow transmission route overlap.
  • the Iub Transmission Path bandwidth 20 Mbps configured for the UL site on the UMTS RNC side, and the UMTS RNC performs transmission bandwidth acceptance and backflow backpressure according to the Iub Transmission Path bandwidth.
  • the value is recorded in the custom field Available BandWidth in the NBAP audit response.
  • the RNC calculates the actual bandwidth value according to the following formula, that is,
  • the test method can improve the transmission bandwidth utilization of the mobile backhaul network (the bandwidth utilization rate is 100%) and avoid the waste of bandwidth.
  • the bandwidth utilization rate is 100%
  • the maximum bandwidth used by UMTS is the bandwidth allocated statically to UMTS, that is, 20 Mbps in the above example.
  • the bandwidth allocated statically to UMTS that is, 20 Mbps in the above example.
  • the bandwidth that UMTS can use is the larger of the available bandwidth and the Iub transmission path bandwidth.
  • the available bandwidth of the UMTS reported by the multimode station is 40 Mbps
  • the larger of the available bandwidth of 40 Mbps and the Iub transmission path bandwidth of 20 Mbps is 40 Mbpa
  • the UMTS RNC performs downlink traffic control according to 40 Mbps.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network of multiple computing devices. Alternatively, they may be implemented by program code executable by a computing device such that they may be stored in a storage device by a computing device and, in some cases, may be executed in a different order than herein.
  • the steps shown or described are either made separately into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the above embodiments and the preferred embodiments solve the problem that the multi-mode base station competes with the downlink bandwidth resources in the related art to cause transmission congestion or waste of bandwidth resources, and improves the utilization of the downlink bandwidth while avoiding congestion.
  • the rate in turn, achieves an effect of improving the user experience.

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Abstract

本发明公开了下行带宽分配方法及装置，其中，该方法包括：获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽；依据该剩余下行带宽以及为该第一制式和该第二制式预分配的下行带宽，对为该第一制式和该第二制式分配的下行带宽进行调整。通过本发明，解决了多模基站不同制式竞争使用下行带宽资源导致传输拥塞或带宽资源浪费的问题，在避免传输拥塞的同时，提高了下行带宽的利用率，进而达到了提高用户体验的效果。

Description

下行带宽分配方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及下行带宽分配方法及装置。
背景技术
在UMTS商用网建网过程中运营商通常会给每个站点规划一个RNC到NodeB的端到端的传输带宽，即Iub E2E传输带宽(为描述方便，后文把这个带宽简称为BE2E，并对该传输带宽进行测试验证。
Iub E2E传输带宽是一个重要的参数，RNC侧需要根据Iub接口传输网络的实际带宽资源正确配置该参数，在RNC侧该参数称为站点的路径带宽。
如果某站点的路径带宽配置值比实际带宽大，则该站点的Iub接口很可能出现SCTP断链，严重影响无线业务并导致网络故障。
如果某站点的路径带宽配置值比实际值小，则Iub接口的带宽不能充分使用，宝贵的Iub接口带宽资源被白白的浪费。
为了降低建网成本，运营商新建的基站站点很多都是多模基站，即同时支持多种无线制式的基站，这里以UMTS/LTE多模基站为例。图1是根据相关技术中的UL多模基站组网连接示意图，如图1所示，多模基站上各种制式通常共传输，所谓多模共传输是指某基站各制式的数据流传送路径有重合，各种制式存在竞争使用移动回程网带宽资源的情况，以欧洲某商用外场为例，多模基站是UMTS/LTE基站，UL多模基站同时与UMTS控制器和LTE的EPC网络连接，省略了UMTS核心网SGSN和GGSN等网元，eNB是UL多模基站，eNB通过一跳或多跳微波与层二交换机TC连接，eNB和UMTS RNC配合提供UMTS业务，eNB和EPC配合提供LTE业务，一部分eNB(如图1中的eNB1)以M1作为主网关，在正常条件下eNB1的UMTS数据流的路径是eNB1─TC─TA─M1─UMTS RNC；eNB1的LTE数据流的路径是eNB1─TC─TA─M1─R1─EPC。UMTS数据流路径和LTE数据流路径在eNB1─TC─TA─M1段是重合的。
在上行方向，eNB1发送的数据在到达M1后分流，其中UMTS数据发送给与M1直连的UMTS RNC，而LTE数据先发送给R1，再由R1转发给EPC；在下行方向， UMTS RNC发送给eNB1的UMTS数据流和EPC发送给eNB的LTE数据流在M1汇聚后将沿着重合的传输路径M1─TA─TC─eNB1传送到eNB1。从eNB1到M1的传输路径eNB1─TC─TA─M1是被UMTS和LTE多种制式共享的，根据传输组网方案，eNB的以太网口将要划分为两个VLAN，VLAN1和VLAN2，其中VLAN1承载UMTS业务，VLAN2承载LTE业务。
根据无线业务流量模型分析，基站的下行流量通常总是远大于上行流量的，因此各制式的下行流量竞争使用下行带宽的情况最为突出。
但是对下行流量而言，每个基站存在2个数据源，一个是UMTS RNC，另一个是LTE的EPC(包含的逻辑网元是媒体面的SGW和控制面的MME)，UMTS RNC和LTE EPC是两个不同的逻辑网元，UMTS和LTE必然要竞争使用传输带宽资源。
从基站到控制器的传输路径上的传输设备通常存在传输带宽瓶颈，为避免传输网络发生拥塞，运营商通常为每个基站都规划了从基站到控制器的端到端传输带宽(为描述方便，后文把这个带宽简称为BE2E)，当从UMTS RNC到eNB1的UMTS数据流量(后文简称为SU)和从EPC到eNB1的数据流量(后文简称为SLTE)的和大于BE2E时，传输网络拥塞发生，传输丢包发生，用户对无线业务的体验变差，无线网络KPI恶化，简单的说：当SU+SLTE>BE2E时，无线网络KPI恶化。
为了避免传输拥塞，需要在UMTS和EPC两个网元分别对下行数据流量SU和SLTE进行带宽控制。以图1中的eNB1为例，假设它的BE2E即路径eNB1─TC─TA─M1的端到端带宽为50Mbps。如何对下行数据流量进行高效率的带宽控制呢？
可以给eNB1的UMTS数据规划20Mbps的下行带宽，给eNB1的LTE数据规划30Mbps的下行带宽，对应的，在UMTS RNC上给eNB1网元配置20Mbps的路径带宽，在EPC上给eNB1网元配置30Mbps的路径带宽，在这种下行带宽的静态分配下，对eNB1而言，
SU<20Mbps，SLTE<30Mbps
所以SU+SLTE<BE2E＝50Mbps
所以在其它条件正常时，eNB1站点不会发生传输拥塞。
以上的下行带宽静态分配方法可以避免传输拥塞，但对BE2E带宽的利用率可能不高。因为对某站点eNB1而言，该站点接入的UMTS用户和LTE用户都是随时间动态变化的，动态变化的用户触发的SU和SLTE也是随时间不断变化的。
设想基站eNB1在某时段，给UMTS分配的带宽已经用完，但是给LTE分配的带宽还有空闲，例如SLTE只有10Mbps，而SU＝20Mbps，则
下行流量和＝10+20＝30Mbps，
在该时段BE2E的带宽利用率只有30/50＝60％，宝贵的BE2E带宽中有20Mbps白白浪费了。
针对相关技术中多模基站不同制式竞争使用下行带宽资源导致传输拥塞或带宽资源浪费的问题，目前尚未提出有效的解决方案。
发明内容
本发明提供了下行带宽分配方法及装置，以至少解决相关技术中多模基站不同制式竞争使用下行带宽资源导致传输拥塞或带宽资源浪费的问题。
根据本发明的一个方面，提供了一种下行带宽分配方法，包括：获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽，对为所述第一制式和所述第二制式分配的下行带宽进行调整。
进一步地，对为所述第一制式和所述第二制式分配的下行带宽进行调整包括：依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽按照预定的分配原则对为所述多种制式分配的下行带宽进行调整。
进一步地，依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽进行调整，包括：将所述第二制式下行流量使用后的剩余下行带宽与为所述第一制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第一制式分配的下行带宽；或者，将所述第一制式下行流量使用后的剩余下行带宽与为所述第二制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第二制式分配的下行带宽。
根据本发明的另一方面，还提供了一种下行带宽分配方法，包括：周期性地检测在第一制式和第二制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；将检测到的所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽周期性地上报给无线网络控制器RNC，其中，所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽用于所述RNC对为所述第一制式和所述第二制式分配的下行带宽进行调整。
进一步地，在将检测到的所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽上报给无线网络控制器RNC之后，还包括：接收到所述RNC发送的依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽对为所述多种制式分配的下行带宽进行调整的调整结果；依据接收到的所述调整结果进行数据传输。
根据本发明的另一方面，提供了一种下行带宽分配装置，包括：获取模块，设置为获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；调整模块，设置为依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽，对为所述第一制式和所述第二制式分配的下行带宽进行调整。
进一步地，所述调整模块包括：调整子模块，设置为依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽按照预定的分配原则对为所述第一制式和所述第二制式分配的下行带宽进行调整。
进一步地，所述调整子模块包括以下至少之一：第一确定单元，设置为将所述第二制式下行流量使用后的剩余下行带宽与为所述第一制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第一制式分配的下行带宽；或者，第二确定单元，设置为将所述第一制式下行流量使用后的剩余下行带宽与为所述第二制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第二制式分配的下行带宽。
根据本发明的另一方面，提供了一种下行带宽分配装置，包括：检测模块，设置为周期性地检测在第一制式和第二制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；上报模块，设置为将检测到的所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽周期性地上报给无线网络控制器RNC，其中，所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽用于所述RNC对为所述第一制式和所述第二制式分配的下行带宽进行调整。
进一步地，所述装置还包括：接收模块，设置为接收到所述RNC发送的依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽对为所述第一制式和所述第二制式分配的下行带宽进行调整的调整结果；数据传输模块，设置为依据接收到的所述调整结果进行数据传输。
通过本发明，采用获取基站在第一制式或第二制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；依据所述剩余下行带宽， 以及为所述第一制式和所述第二制式预分配的下行带宽，对为所述第一制式和所述第二制式分配的下行带宽进行调整，解决了相关技术中多模基站不同制式竞争使用下行带宽资源导致传输拥塞或带宽资源浪费的问题，在避免拥塞的同时，提高了下行带宽的利用率，进而达到了提高用户体验的效果。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据相关技术中的UL多模基站组网连接示意图；
图2是根据本发明实施例的下行带宽分配方法的流程图一；
图3是根据本发明实施例的下行带宽分配方法的流程图二；
图4是根据本发明实施例的下行带宽分配装置的框图一；
图5是根据本发明优选实施例的下行带宽分配装置的框图一；
图6是根据本发明优选实施例的下行带宽分配装置的框图二；
图7是根据本发明实施例的下行带宽分配装置的框图二；
图8是根据本发明优选实施例的下行带宽分配装置的框图三；
图9是根据本发明实施例的Iub审计响应信令流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
在本实施例中提供了一种下行带宽分配方法，图2是根据本发明实施例的下行带宽分配方法的流程图一，如图2所示，该流程包括如下步骤：
步骤S202，获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽；
步骤S204，依据该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽，对为该第一制式和该第二制式分配的下行带宽进行调整。
通过上述步骤，获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽；依据该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽，对为该第一制式和该第二制式分配的下行带宽进行调整，其中，上述的基站指的是多模基站，含两种无线制式，解决了相关技术中多模基站不同制式竞争使用下行带宽资源导致传输拥塞或带宽资源浪费的问题，在避免拥塞的同时，提高了下行带宽的利用率，进而达到了提高用户体验的效果。
调整为第一制式和第二制式分配的下行带宽的方式有很多种，在一个可选的实施例中，对为该第一制式和该第二制式分配的下行带宽进行调整可以包括：依据该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽按照预定的分配原则对为该多种制式分配的下行带宽进行调整。需要说明的是，不仅可以对第一制式和第二制式两种制式下的下行带宽进行调整，还可以对两种以上的制式的下行带宽进行调整，调整的方式可以包括以下的三种：将该剩余下行带宽与预先为该多种制式中第一制式配置的下行带宽量进行比较，将比较结果中的较大者确定为该第一制式分配的下行带宽；根据该多种制式下使用下行带宽后各自的剩余下行带宽，判断该第一制式需要的下行带宽是否小于该多种制式下使用下行带宽后各自的剩余下行带宽，在判断结果为是的情况下，将该多种制式下使用下行带宽后各自的剩余下行带宽中与该第一制式需要的下行带宽最接近的制式下的下行带宽确定为该第一制式分配的下行带宽；根据该多种制式下使用下行带宽后各自的剩余下行带宽，判断该第一制式需要的下行带宽是否小于该多种制式下使用下行带宽后各自的剩余下行带宽，在判断结果为否的情况下，将该多种制式下使用下行带宽后各自的剩余下行带宽中至少两者之和与该第一制式需要的下行带宽最接近的下行带宽确定为该第一制式分配的下行带宽。
在两种制式下依据该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽进行调整，可以包括：将该第二制式下行流量使用后的剩余下行带宽与为该第一制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为该第一制式分配的下行带宽；或者，将该第一制式下行流量使用后的剩余下行带宽与为该第二制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为该第二制式分配的下行带宽。
本发明实施例还提供了一种下行带宽分配方法，图3是根据本发明实施例的下行带宽分配方法的流程图二，如图3所示，该流程包括如下步骤：
步骤S302，周期性地检测在第一制式和第二制式下行流量使用后的剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽；
步骤S304，将检测到的该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽周期性地上报给无线网络控制器RNC，其中，该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽用于该RNC对为该第一制式和该第二制式分配的下行带宽进行调整。
通过上述步骤，解决了相关技术中多模基站不同制式竞争使用下行带宽资源导致传输拥塞或带宽资源浪费的问题，在避免拥塞的同时，提高了下行带宽的利用率，进而达到了提高用户体验的效果。
在将检测到的该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽上报给无线网络控制器RNC之后，还包括：接收到该RNC发送的依据该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽对为该多种制式分配的下行带宽进行调整的调整结果；依据接收到的该调整结果进行数据传输。
本发明的实施例提供了一种下行带宽分配装置，图4是根据本发明实施例的下行带宽分配装置的框图，如图4所示，包括：获取模块42和调整模块44，下面对各个模块进行简要说明。
获取模块42，设置为获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽；
调整模块44，设置为依据该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽，对为该第一制式和该第二制式分配的下行带宽进行调整。
图5是根据本发明优选实施例的下行带宽分配装置的框图一，如图5所示，该调整模块44包括：
调整子模块52，设置为依据该剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽按照预定的分配原则对为该第一制式和该第二制式分配的下行带宽进行调整。
图6是根据本发明优选实施例的下行带宽分配装置的框图二，如图6所示，该调整子模块52包括以下至少之一：
第一确定单元62，设置为将该第二制式下行流量使用后的剩余下行带宽与为该第一制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为该第一制式分配的下行带宽；或者，
第二确定单元64，设置为将该第一制式下行流量使用后的剩余下行带宽与为该第二制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为该第二制式分配的下行带宽。
本发明实施例还提供了一种下行带宽分配装置，图7是根据本发明实施例的下行带宽分配装置的框图二，如图7所示，包括：检测模块72和上报模块74，下面对各个模块进行简要说明。
检测模块72，设置为周期性地检测在第一制式和第二制式下行流量使用后的剩余下行带宽，以及为该第一制式和该第二制式预分配的下行带宽；
上报模块74，设置为将检测到的所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽周期性地上报给无线网络控制器RNC，其中，所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽用于所述RNC对为所述第一制式和所述第二制式分配的下行带宽进行调整。
图8是根据本发明优选实施例的下行带宽分配装置的框图三，如图8所示，该装置还包括：
接收模块82，设置为接收到该RNC发送的依据该剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽对为该第一制式和所述第二制式分配的下行带宽进行调整的调整结果；
数据传输模块84，设置为依据接收到的该调整结果进行数据传输。
下面结合可选实施方式对本发明实施例进行进一步说明。
本发明实施例为含UMTS的多模共传输的基站提供了一种动态下行带宽分配方法，在避免移动回程网传输拥塞的同时提高了端到端传输带宽资源利用率。包括以下内容：
含UMTS的多模共传输基站(设另一种无线制式为X)的各制式共用移动移动回传传输网，所谓多模共传输是指某基站各制式的数据流传送路径有重合。运营商根据移动回程网络的带宽资源给某多模共传输站点规划的端到端带宽是BE2E，并且按照 m:n的权重把带宽分配给UMTS和X，即UMTS分配到的带宽是BE2E*m/(m+n)，X制式分配到的带宽是BE2E*n/(m+n)。在UMTS RNC侧给该多模站点配置的Iub Transmission Path bandwidth＝BE2E*m/(m+n)，UMTS RNC根据Iub Transmission Path bandwidth进行传输带宽接纳和下行流量的反压。多模站点以周期T统计X制式的接收流量，然后计算UMTS可用带宽Available BandWidth＝BE2E-SX，并在NBAP审计响应里的自定义字段Available BandWidth记录该数值。RNC在收到上报值后按照以下公式计算出实际带宽值，即选取Available BandWidth和Iub transmission path bandwidth两者中较大的作为actual bandwidth。
actual bandwidth＝max(Available BandWidth,Iub transmission path bandwidth)
并根据actual bandwidth进行下行流量的反压。
本发明实施例，采用接收方eNodeB周期性监测数据源2—X制式产生的下行流量Sx，根据BE2E计算出数据源1—UMTS RNC的可用带宽Available BandWidth＝BE2E-Sx并向RNC周期性上报Available BandWidth。RNC根据Available BandWidth计算出实际可用带宽并根据此带宽进行接纳控制和反压调度。通过使用本可选实施例，在避免回程网传输拥塞的同时，提高了移动回程网的下行带宽利用率(下行带宽利用率是100％)，提高了用户的下行吞吐量和用户体验。
本实施例应用于含UMTS的多模共传输基站(设另一种无线制式为X)的各制式共用移动移动回传传输网。UMTS RNC以给基站网元配置的路径带宽作为传输接纳控制和反压的门限，路径带宽越大，则对应的基站接入的UMTS用户越多，UMTS业务的下行吞吐量也越大。运营商根据移动回程网络的带宽资源给某多模共传输站点规划的端到端带宽是BE2E，并且按照m:n的权重把带宽分配给UMTS和X，即UMTS分配到的带宽是BE2E*m/(m+n)，X制式分配到的带宽是BE2E*n/(m+n)。在UMTS RNC侧给该多模站点配置的Iub Transmission Path bandwidth＝BE2E*m/(m+n)，UMTS RNC根据Iub Transmission Path bandwidth进行传输带宽接纳和下行流量的反压。多模站点以周期T统计X制式的接收流量，然后按照下述公式计算UMTS可用带宽：
Available BandWidth＝BE2E-SX，
并在NBAP审计响应里的自定义字段Available BandWidth记录该数值，Available BandWidth可以扩展NBAP消息来实现。
图9是根据本发明实施例的Iub审计响应信令流程图，如图9所示，向UMTS RNC通告UMTS可用带宽的信息就在图中审计响应消息中。NBAP扩展消息的定义。NBAP 审计响应消息在3GPP 25.433协议中有详细的定义，可以扩展审计应答消息，就在Audit Response消息的最后增加一个OPTIONAL信元。
对应信元(IE)结构如表1所示。
RNC在收到上报值后按照以下公式计算出实际带宽值，即
选取Available BandWidth和Iub transmission path bandwidth两者中较大的作为actual bandwidth。
actual bandwidth＝max(Available BandWidth,Iub transmission path bandwidth)
并根据actual bandwidth进行下行流量的反压。
表1 NodeB TnlPhyport字段格式
Figure PCTCN2015075576-appb-000001
下面以一个UMTS/LTE多模基站为例说明。
UL多模基站的UMTS和LTE共用Iub/S1接口传输，即UMTS下行数据流路径与LTE的下行数据流的传送路由有重合。运营商根据移动回程网络的带宽资源给某UL站点规划的端到端带宽是BE2E＝50Mbps，并且按照2:3的权重把带宽分配给UMTS和LTE，即UMTS分配到的带宽是20Mbps，LTE分配到的带宽是30Mbps。在UMTS RNC侧给该UL站点配置的Iub Transmission Path bandwidth＝20Mbps，UMTS RNC根据Iub  Transmission Path bandwidth进行传输带宽接纳和下行流量的反压。UL站点以周期T＝5秒统计LTE的接收流量，假设在某时刻SLTE＝10Mbps，
然后，按照下述公式计算UMTS可用带宽。
Available BandWidth＝BE2E-SLTE＝50–10＝40Mbps，
并在NBAP审计响应里的自定义字段Available BandWidth记录该数值。
RNC在收到上报值后按照以下公式计算出实际带宽值，即
actual bandwidth＝max(20,40)＝40Mbps
并根据actual bandwidth进行下行流量的反压。
本实施例与静态分配UMTS与X制式的带宽相比，本测试方法可以提高移动回程网的传输带宽利用率(带宽利用率是100％)，避免带宽浪费。以下举例说明：
a.在静态分配带宽的方法中，UMTS使用到的最大的带宽即为给UMTS静态分配的带宽，即上例中20Mbps。当X的下行流量为10Mbps时，UMTS使用的最大带宽还是20Mbps，移动回程网端到端带宽使用率只有(10+20)/50＝60％。
b.使用本方法后，UMTS可使用到的带宽是可用带宽和Iub transmission path bandwidth两者中的较大值。当X制式的下行流量为10Mbps时，多模站点上报的UMTS可用带宽是40Mbps，可用带宽40Mbps和Iub transmission path bandwidth 20Mbps两者中的较大值是40Mbpa，UMTS RNC根据40Mbps进行下行流量控制，带宽利用率是(10+40)/50＝100％。
显然，本领域的技术人员应该明白，本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，通过上述实施例及优选实施方式，解决了相关技术中多模基站不同制式竞争使用下行带宽资源导致传输拥塞或带宽资源浪费的问题，在避免拥塞的同时，提高了下行带宽的利用率，进而达到了提高用户体验的效果。

Claims (10)

  1. 一种下行带宽分配方法，包括：
    获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；
    依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽，对为所述第一制式和所述第二制式分配的下行带宽进行调整。
  2. 根据权利要求1所述的方法，其中，对为所述第一制式和所述第二制式分配的下行带宽进行调整包括：
    依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽按照预定的分配原则对为所述多种制式分配的下行带宽进行调整。
  3. 根据权利要求1所述的方法，其中，依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽进行调整，包括：
    将所述第二制式下行流量使用后的剩余下行带宽与为所述第一制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第一制式分配的下行带宽；或者，
    将所述第一制式下行流量使用后的剩余下行带宽与为所述第二制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第二制式分配的下行带宽。
  4. 一种下行带宽分配方法，包括：
    周期性地检测在第一制式和第二制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；
    将检测到的所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽周期性地上报给无线网络控制器RNC，其中，所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽用于所述RNC对为所述第一制式和所述第二制式分配的下行带宽进行调整。
  5. 根据权利要求4所述的方法，其中，在将检测到的所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽上报给无线网络控制器RNC之后，还包括：
    接收到所述RNC发送的依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽对为所述多种制式分配的下行带宽进行调整的调整结果；
    依据接收到的所述调整结果进行数据传输。
  6. 一种下行带宽分配装置，包括：
    获取模块，设置为获取基站在第二制式或第一制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；
    调整模块，设置为依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽，对为所述第一制式和所述第二制式分配的下行带宽进行调整。
  7. 根据权利要求6所述的装置，其中，所述调整模块包括：
    调整子模块，设置为依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽按照预定的分配原则对为所述第一制式和所述第二制式分配的下行带宽进行调整。
  8. 根据权利要求6所述的装置，其中，所述调整子模块包括以下至少之一：
    第一确定单元，设置为将所述第二制式下行流量使用后的剩余下行带宽与为所述第一制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第一制式分配的下行带宽；或者，
    第二确定单元，设置为将所述第一制式下行流量使用后的剩余下行带宽与为所述第二制式预分配的下行带宽量进行比较，将比较结果中的较大者确定为所述第二制式分配的下行带宽。
  9. 一种下行带宽分配装置，包括：
    检测模块，设置为周期性地检测在第一制式和第二制式下行流量使用后的剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽；
    上报模块，设置为将检测到的所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽周期性地上报给无线网络控制器RNC，其中，所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽用于所述RNC对为所述第一制式和所述第二制式分配的下行带宽进行调整。
  10. 根据权利要求9所述的装置，其中，所述装置还包括：
    接收模块，设置为接收到所述RNC发送的依据所述剩余下行带宽，以及为所述第一制式和所述第二制式预分配的下行带宽对为所述第一制式和所述第二制式分配的下行带宽进行调整的调整结果；
    数据传输模块，设置为依据接收到的所述调整结果进行数据传输。
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