CN102098743B - E-DCH (Enhanced Dedicated Channel) scheduling optimization method and wireless access network node - Google Patents
E-DCH (Enhanced Dedicated Channel) scheduling optimization method and wireless access network node Download PDFInfo
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- CN102098743B CN102098743B CN200910252198.1A CN200910252198A CN102098743B CN 102098743 B CN102098743 B CN 102098743B CN 200910252198 A CN200910252198 A CN 200910252198A CN 102098743 B CN102098743 B CN 102098743B
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Abstract
The invention relates to an E-DCH (Enhanced Dedicated Channel) scheduling optimization method and a wireless access network node. The E-DCH scheduling optimization method comprises the following steps of: sending an E-DCH scheduling parameter of a terminal to a target wireless access network system by a source wireless access network system through signaling when relocation is performed; after the relocation is completed, judging whether the received E-DCH scheduling parameter is consistent with the determined E-DCH scheduling parameter of the terminal or not by the target wireless access network system; and if not, initiating a reconfiguration flow for the terminal to update the scheduling parameter thereof. The E-DCH scheduling optimization method and the wireless access network node of the invention can improve the E-DCH scheduling efficiency and reduce the possibility of physical resource reconfiguration.
Description
Technical field
The present invention relates to the communications field, especially a kind of E-DCH method for optimizing scheduling and wireless access network node.
Background technology
In order to reduce the transmission delay of block domain data, 3GPP consensus standard has carried out evolution to the protocol infrastructure of 3G (Third Generation) Moblie, also be that radio network controller (RNC) node moves down into Node B (NODE-B), Node B has service wireless network controller, floating radio network controller function, and this Node B can be referred to as reinforced Node B.
Moving down of radio network controller, make the interface definition between different nodes that variation also occur, between reinforced Node B and reinforced Node B, adopt Iur interface, between reinforced Node B and traditional radio network controller, also adopt Iur interface, between reinforced Node B and core net node, adopt Iu interface, and only support the Iu interface of packet domain.
Existing protocol is for repositioning process at present, " source radio network controller is to the transparent vessel of target radio network controller " informational needs of its source radio network connecting system sends by " reorientation demand " signaling, via core net " re-positioning request ", be transmitted to target radio network connecting system again, wherein " source radio network controller is to the transparent vessel of target radio network controller " do not comprise the information of physical channel, also be that target radio network controller is after receiving re-positioning request, need to divide and match the parameter of physical layer and carry out reprovision according to the resource of target radio network controller.
The network architecture as shown in Figure 1, need to there is reorientation in following scene:
(1) built vertical RRC connection request or have the business of packet domain between subscriber equipment and reinforced Node B, but subsequent user equipment is set up again the business of circuit domain, and reinforced Node B need to be initiated the process of reorientation;
(2) subscriber equipment because there is the concurrent of circuit domain and packet switch domain service, makes its control at traditional radio network controller (RNC), but along with the release of circuit domain business, RNC need to initiate to reinforced Node B the process of reorientation;
(3) when reinforced Node B is during as the serving node B of subscriber equipment, serving node B generally has best signal strength signal intensity, it has the function of service wireless network controller RNC and ascending packet data is carried out to pooling function, but the movement due to subscriber equipment, causing serving node B need to do frequently upgrades, the function of Serving RNC also will be done frequently and shift so, thereby also needs to occur reorientation frequently.
Radio network controller based on new (RNC) moves down into the framework of Node B (NODE B) so, it is the Node B of circuit domain and packet domain common carrier frequency that the network of disposing can exist reinforced Node B, also be that the business of circuit domain and the business of packet domain can be used identical Radio Resource pond in this Node B administration Xia community, but as long as there is the business of circuit domain in subscriber equipment, the controller that RRC connects is just at traditional RNC, so just exist the control of RRC at different nodes, but physical resource is used a set of situation.
When subscriber equipment is communicated by letter under same community and reorientation occurs in above-mentioned (1) or (2) in the situation that, may cause physical resource reprovision and E-DCH dispatching efficiency low.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of E-DCH method for optimizing scheduling and wireless access network node, reduces the possibility of physical resource reprovision to improve E-DCH dispatching efficiency.
For solving above technical problem, the invention provides a kind of E-DCH method for optimizing scheduling, the method comprises:
While carrying out reorientation, source wireless access network system sends to target radio access network system by signaling by enhancing dedicated channel (E-DCH) scheduling parameter of subscriber equipment;
After reorientation completes, whether the E-DCH scheduling parameter of the E-DCH scheduling parameter that target radio access network system judgement receives and the subscriber equipment of its decision is consistent, and only when inconsistent, subscriber equipment initiation reprovision flow process upgraded to its scheduling parameter.
Further, described source wireless access network system directly sends the signaling of carrying E-DCH scheduling parameter to described target radio access network system, or to described target radio access network system, sends the signaling of carrying E-DCH scheduling parameter by core net.
Further, described signaling is following any message or its combination: RELOCATION REQUEST message, reorientation requirement message or handover request message.
Further, the mode that described signaling is carried described E-DCH scheduling parameter is in " Radio Resource control container ", to increase described E-DCH scheduling parameter.
Further, the mode that described signaling is carried described E-DCH scheduling parameter is at " source radio network controller is to the transparent vessel of target radio network controller ", to comprise " the Radio Resource control container " that has increased described E-DCH scheduling parameter.
Further, the method that described signaling is carried described E-DCH scheduling parameter is in described signaling, to fill in the relevant cell of described E-DCH scheduling parameter.
Further, described source wireless access network system and target radio access network system are: the wireless access network system that radio access network controller and Node B form, or, the wireless access network system that reinforced Node B forms.
Further, described E-DCH scheduling parameter refers to the control parameter that the E-DCH of subscriber equipment is dispatched, and comprises following parameter any one or its combination: when the cycle of subscriber equipment sends request schedule information that happy bit postpones condition, zero while authorizing, non-zero mandate, subscriber equipment sends request the cycle of schedule information.
For solving above technical problem, the present invention also provides a kind of wireless access network node, and described wireless access network node comprises connected reorientation module and optimizing scheduling module, wherein:
Described reorientation module, be used for carrying out reorientation flow process, specifically comprise: when described wireless access network node carries out reorientation as the node of source wireless access network system, for by signaling, the E-DCH scheduling parameter of subscriber equipment being sent to target radio access network system, for described target radio access network system, use; When described wireless access network node carries out reorientation as the node of object wireless access network system, also for receiving E-DCH scheduling parameter;
Described optimizing scheduling module, for determine the E-DCH scheduling parameter of subscriber equipment according to local policy, and whether the E-DCH scheduling parameter that judgement receives is consistent with the E-DCH scheduling parameter of its decision, and only when inconsistent, subscriber equipment initiated to reprovision flow process and upgrade its scheduling parameter.
Further, described wireless access network node directly sends the signaling of carrying E-DCH scheduling parameter to described target radio access network system, or to described target radio access network system, sends the signaling of carrying E-DCH scheduling parameter by core net.
Further, described signaling is following any message or its combination: RELOCATION REQUEST message, reorientation requirement message or handover request message.
Further, the mode that described signaling is carried described E-DCH scheduling parameter is in " Radio Resource control container ", to increase described E-DCH scheduling parameter.
Further, the method that described signaling is carried described E-DCH scheduling parameter is in described signaling, to fill in the relevant cell of described E-DCH scheduling parameter.
Further, described wireless access network node is radio access network controller or reinforced Node B.
In the present invention, source wireless access network system is dispatched relevant parameter above-mentioned these and is notified to target radio access network system, for target radio access network system, carry out E-DCH scheduling, target radio access network system is only when the E-DCH scheduling parameter of the subscriber equipment of the E-DCH scheduling parameter receiving and its decision is inconsistent, subscriber equipment is initiated to reprovision flow process and upgrade its scheduling parameter, thereby guarantee that the dispatching efficiency of subscriber equipment and target radio access network is with accurate, and reduced the possibility of carrying out physical resource reprovision.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiments of the invention 1.
Fig. 2 is the schematic diagram of embodiments of the invention 2.
Embodiment
The main thought of the inventive method and wireless access network node is: in repositioning process, by the wireless access network node of source wireless access network system by the E-DCH(Enhanced Dedicated Channel of subscriber equipment, enhancing dedicated channel) scheduling parameter passes to target radio access network system, for target radio access network system, uses and carries out E-DCH scheduling.After reorientation completes, whether the E-DCH scheduling parameter of the subscriber equipment that the E-DCH scheduling parameter that the judgement of target radio access network system receives determines with target radio access network is consistent, if inconsistent, in time subscriber equipment is initiated to reprovision flow process and upgrade its scheduling parameter, make its scheduling more accurate; If consistent, do not do any operation, guarantee the continuity of scheduling.
Described source wireless access network system sends to target radio access network system by following any or its combination by E-DCH scheduling parameter:
1, source wireless access network system carries above-mentioned E-DCH scheduling parameter by signaling and directly sends to target radio access network system, refers to following examples 1; Or,
2, by source wireless access network system, by signaling, carry above-mentioned E-DCH scheduling parameter and by signaling, carry transparent forwarding to target radio access network system via core net, refer to following examples 2.
The signaling of carrying above-mentioned E-DCH scheduling parameter is following any message or its combination: RELOCATION REQUEST message, reorientation requirement message or handover request message.
The signaling of the above-mentioned E-DCH scheduling parameter of described transmission is carried the method for carrying of above-mentioned E-DCH scheduling parameter, is to realize by fill in the above-mentioned relevant cell of E-DCH scheduling parameter in described signaling message.
Below in conjunction with drawings and the specific embodiments, technical scheme of the present invention is described in further detail:
Embodiment 1
Embodiment 1 is that source wireless access network system and Target Wireless connecting system directly carry out the method flow diagram that interacting message carries above-mentioned E-DCH scheduling parameter after the flattening of networking, as shown in Figure 1:
Step 101: reorientation flow process is initiated in source wireless access network system decision-making;
Step 102: source wireless access network system is initiated RELOCATION REQUEST message to target radio access network system, wherein carry " source radio network controller is to the transparent vessel of target radio network controller ", at this " source radio network controller is to transparent vessel of target radio network controller ", comprised " the Radio Resource control container " that adds above-mentioned E-DCH scheduling parameter.
The E-DCH scheduling parameter of carrying in message is the E-DCH scheduling parameter that subscriber equipment is using.
Step 103: target radio access network system is returned to relocation response to source wireless access network system;
Step 104: target radio access network system judges whether to initiate reprovision flow process.
After reorientation completes, whether the E-DCH scheduling parameter that the judgement of target radio access network system receives is consistent with the E-DCH scheduling parameter that target radio access network determines according to local policy, if inconsistent, in time subscriber equipment is initiated to reprovision flow process and upgrade its scheduling parameter, make its scheduling more accurate; If consistent, do not do any operation, guarantee the continuity of scheduling.
Embodiment 2
Embodiment 2 is that source wireless access network system carries the method flow diagram of E-DCH scheduling parameter while carrying out information interaction by core net and target radio access network system, comprise reorientation and the irrelevant reorientation flow process of subscriber equipment that subscriber equipment is relevant, as shown in Figure 2:
Step 201: reorientation flow process is initiated in source wireless access network system decision-making;
Step 202: source wireless access network system is initiated reorientation requirement message to core net, wherein carry " source radio network controller is to the transparent vessel of target radio network controller ", at this " source radio network controller is to transparent vessel of target radio network controller ", comprised " the Radio Resource control container " that adds above-mentioned E-DCH scheduling parameter;
The E-DCH scheduling parameter of carrying in message is the E-DCH scheduling parameter that subscriber equipment is using.
Step 203: core net is initiated RELOCATION REQUEST message to target radio access network system, wherein carry " source radio network controller is to the transparent vessel of target radio network controller ", at this " source radio network controller is to transparent vessel of target radio network controller ", comprised " the Radio Resource control container " that adds above-mentioned E-DCH scheduling parameter;
Step 204: target radio access network system is returned to relocation commit message to core net;
Step 205: core net is initiated reorientation order to source wireless access network system;
Step 206: target radio access network system judges whether to initiate reprovision flow process.
After reorientation completes, the E-DCH scheduling parameter whether the E-DCH scheduling parameter that the judgement of target radio access network system receives determines according to local policy with target radio access network is consistent, if inconsistent, in time subscriber equipment is initiated to reprovision flow process and upgrade its scheduling parameter, make its scheduling more accurate; If consistent, do not do any operation, guarantee the continuity of scheduling.
In above-mentioned two embodiment, described source wireless access network system and target radio access network system are following any wireless access network systems: the wireless access network system that the wireless access network system that radio access network controller and Node B form or reinforced Node B form.
For realizing above method, the present invention also provides a kind of wireless access network node, and described wireless access network node comprises connected reorientation module and optimizing scheduling module, wherein:
Reorientation module, be used for carrying out reorientation flow process, specifically comprise: when described wireless access network node carries out reorientation as the node of source wireless access network system, for by signaling, the E-DCH scheduling parameter of subscriber equipment being sent to target radio access network system, for described target radio access network system, use; When described wireless access network node carries out reorientation as the node of object wireless access network system, also for receiving E-DCH scheduling parameter;
Optimizing scheduling module, for determine the E-DCH scheduling parameter of subscriber equipment according to local policy, and whether the E-DCH scheduling parameter that judgement receives is consistent with the E-DCH scheduling parameter of its decision, and only when inconsistent, subscriber equipment initiated to reprovision flow process and upgrade its scheduling parameter.
As mentioned above, described wireless access network node directly sends the signaling of carrying E-DCH scheduling parameter to described target radio access network system, or to described target radio access network system, sends the signaling of carrying E-DCH scheduling parameter by core net.
Described signaling is following any message or its combination: RELOCATION REQUEST message, reorientation requirement message or handover request message.
The mode that described signaling is carried described E-DCH scheduling parameter is in " Radio Resource control container ", to increase described E-DCH scheduling parameter.
The method that signaling is carried described E-DCH scheduling parameter is in described signaling, to fill in the relevant cell of described E-DCH scheduling parameter.
Described wireless access network node is radio access network controller or reinforced Node B.
E-DCH scheduling parameter in the present invention is the control parameter that the E-DCH of subscriber equipment is dispatched, comprise following parameter any one or its combination: when the cycle of subscriber equipment sends request schedule information that happy bit postpones condition, zero while authorizing, non-zero mandate, subscriber equipment sends request the cycle of schedule information, wherein:
(1) happy bit postpones condition (Happy bit delay condition): for determining that subscriber equipment sends the delay of happy bit (HappyBit), subscriber equipment, by sending schedule information and happy bit (HappyBit) to E-DCH serving node B request resource, needs these information to carry out the distribution of Radio Resource during node B scheduling;
(2) zero subscriber equipment while authorizing sends request the cycle (Periodicity for Scheduling Info – no grant) of schedule information: represent that zero subscriber equipment while authorizing sends request the cycle of schedule information.
(3) subscriber equipment sends request cycle (Periodicity for Scheduling Info – grant) of schedule information during non-zero mandate: while representing non-zero mandate, subscriber equipment sends request the cycle of schedule information.
In the present invention, source wireless access network system is dispatched relevant parameter above-mentioned these and is notified to target radio access network system, for target radio access network system, carry out E-DCH scheduling, target radio access network system is only when the E-DCH scheduling parameter of the subscriber equipment of the E-DCH scheduling parameter receiving and its decision is inconsistent, subscriber equipment is initiated to reprovision flow process and upgrade its scheduling parameter, thereby guarantee that the dispatching efficiency of subscriber equipment and target radio access network is with accurate, and reduced the possibility of carrying out physical resource reprovision.
Claims (14)
1. an E-DCH method for optimizing scheduling, is characterized in that, the method comprises:
While carrying out reorientation, source wireless access network system sends to target radio access network system by signaling by enhancing dedicated channel (E-DCH) scheduling parameter of subscriber equipment;
After reorientation completes, whether the E-DCH scheduling parameter of the E-DCH scheduling parameter that target radio access network system judgement receives and the subscriber equipment of its decision is consistent, and only when inconsistent, subscriber equipment initiation reprovision flow process upgraded to its scheduling parameter.
2. the method for claim 1, it is characterized in that: described source wireless access network system directly sends the signaling of carrying E-DCH scheduling parameter to described target radio access network system, or to described target radio access network system, send the signaling of carrying E-DCH scheduling parameter by core net.
3. the method for claim 1, is characterized in that: described signaling is following any message or its combination: RELOCATION REQUEST message, reorientation requirement message or handover request message.
4. the method for claim 1, is characterized in that: the mode that described signaling is carried described E-DCH scheduling parameter is in " Radio Resource control container ", to increase described E-DCH scheduling parameter.
5. the method for claim 1, it is characterized in that: the mode that described signaling is carried described E-DCH scheduling parameter is at " source radio network controller is to the transparent vessel of target radio network controller ", to comprise " the Radio Resource control container " that has increased described E-DCH scheduling parameter.
6. the method for claim 1, is characterized in that: the method that described signaling is carried described E-DCH scheduling parameter is in described signaling, to fill in the relevant cell of described E-DCH scheduling parameter.
7. the method for claim 1, it is characterized in that, described source wireless access network system and target radio access network system are: the wireless access network system that radio access network controller and Node B form, or, the wireless access network system that reinforced Node B forms.
8. the method for claim 1, it is characterized in that: described E-DCH scheduling parameter refers to the control parameter that the E-DCH of subscriber equipment is dispatched, comprise following parameter any one or its combination: when the cycle of subscriber equipment sends request schedule information that happy bit postpones condition, zero while authorizing, non-zero mandate, subscriber equipment sends request the cycle of schedule information.
9. a wireless access network node, is characterized in that, described wireless access network node comprises connected reorientation module and optimizing scheduling module, wherein:
Described reorientation module, be used for carrying out reorientation flow process, specifically comprise: when described wireless access network node carries out reorientation as the node of source wireless access network system, for by signaling, the E-DCH scheduling parameter of subscriber equipment being sent to target radio access network system, for described target radio access network system, use; When described wireless access network node carries out reorientation as the node of object wireless access network system, also for receiving E-DCH scheduling parameter;
Described optimizing scheduling module, for determine the E-DCH scheduling parameter of subscriber equipment according to local policy, and whether the E-DCH scheduling parameter that judgement receives is consistent with the E-DCH scheduling parameter of its decision, and only when inconsistent, subscriber equipment initiated to reprovision flow process and upgrade its scheduling parameter.
10. wireless access network node as claimed in claim 9, it is characterized in that: described wireless access network node directly sends the signaling of carrying E-DCH scheduling parameter to described target radio access network system, or to described target radio access network system, send the signaling of carrying E-DCH scheduling parameter by core net.
11. wireless access network nodes as claimed in claim 9, is characterized in that: described signaling is following any message or its combination: RELOCATION REQUEST message, reorientation requirement message or handover request message.
12. wireless access network nodes as claimed in claim 9, is characterized in that: the mode that described signaling is carried described E-DCH scheduling parameter is in " Radio Resource control container ", to increase described E-DCH scheduling parameter.
13. wireless access network nodes as claimed in claim 9, is characterized in that: the method that described signaling is carried described E-DCH scheduling parameter is in described signaling, to fill in the relevant cell of described E-DCH scheduling parameter.
14. wireless access network nodes as claimed in claim 9, is characterized in that: described wireless access network node is radio access network controller or reinforced Node B.
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| EP1643690B1 (en) * | 2004-10-01 | 2008-04-02 | Matsushita Electric Industrial Co., Ltd. | Quality-of-Service (QoS)-aware scheduling for uplink transmissions on dedicated channels |
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