CN1138433C - Queue managing method in fast society selection between base stations - Google Patents
Queue managing method in fast society selection between base stations Download PDFInfo
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- CN1138433C CN1138433C CNB011188766A CN01118876A CN1138433C CN 1138433 C CN1138433 C CN 1138433C CN B011188766 A CNB011188766 A CN B011188766A CN 01118876 A CN01118876 A CN 01118876A CN 1138433 C CN1138433 C CN 1138433C
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Abstract
The present invention discloses a queue managing method in quick subzone selection between base stations. The method comprises the steps: the information of a service subzone selected and measured by a UE at each time is fed back to an original service subzone through an up signaling; whether the two subzones belong to different base stations or not is judged through the original service subzone, if true, the two base stations are connected to transfer the transmission state information and the queue information of the UE, else, the base station informs the transmission state information and the queue information of the UE to a new service subzone to complete the quick subzone selection between the base stations. The method can reduce the complexity of the UE and the bandwidth of the up signaling and can enhance the probability of the correct detection of the up signaling.
Description
Technical field
The present invention relates to the queue management method during fast cell is selected between radio communication system base station.
Background technology
In the high speed data transfer of mobile radio system,, realize the distributed scheduling of data service because therefore the interface time delay of traditional scheduling architecture based on radio network controller transfers to the base station with the scheduling of data service.Packet data package is often adopted in data service, uses HARQ (mixing automatic repeat requests) technology, and UE is according to the quality that receives packet, feeding back ACK/nack message.The base station receives ACK information, sends next bag, and the base station receives nack message, retransmits this packet.Based on the above-mentioned fact, the data service scheduling between the base station under the fast cell selection situation needs to solve quick HARQ (the mixing automatic repeat requests) state synchronization between two base stations, carries out effective queue management.Queue management method during fast cell is selected between the base station at present, a kind of queue management method that is based on each frame update, in this method, each frame of UE is measured, best cell in the selection active set is as Serving cell, and by up signaling all sub-district feedbacks in active set, UE also will be by up signaling transmit queue information simultaneously, the coded modulation scheme rank that the last transmission is adopted, the C/I transmitting state informations such as (carrier/interface ratios) of UE on shared channel given new Serving cell, old then Serving cell stops its transmission to this UE on shared channel, connect by new Serving cell and UE, according to the transmitting state information service UE of this UE that is obtained; Second kind of queue management method that is based on event update, in this method, after the fast cell between the base station was selected Event triggered, UE was by up signaling all sub-district feedback cell selecting information and relevant transmitting state informations in active set; The third is based on the queue management method of network, and the state information of formation and ARQ (automatic wrong repeat requests) information is passed to sub-district member in the active set by the interface between the interface between network controller and the base station or two network controllers.
In above-mentioned queue management method based on each frame update, each frame of UE all will by up signaling in active set all cell transmission cell selecting information and the associated transport state information of UE, a large amount of upstream bandwidths have been taken, also require simultaneously all sub-districts in the active set or former Serving cell and new Serving cell can both detect the uplink information of UE reliably, increased uplink interference.In above-mentioned queue management method based on event update, the fast cell of UE between the base station selected after the Event triggered, associated transport state information by up signaling transmission cell selecting information and UE, though reduced upstream bandwidth to a certain extent, but still need to transmit the associated transport state information of UE by the wireless uplink signaling, still require all sub-districts in the active set or former Serving cell and new Serving cell can both detect the uplink information of UE reliably, but also need UE can discern affiliated base station, each sub-district, thereby also increased the complexity of UE.In above-mentioned based on network queue management method, interface time delay selects to bring restriction can for the fast cell between the base station.
Summary of the invention
The object of the present invention is to provide the queue management method during fast cell is selected between a kind of base station, this method helps reliable transmission UE and carries out the correlation behavior information that fast cell is selected, and reduces the UE complexity, reduces up signalling bandwidth and improves up signaling by the correct probability that detects of former Serving cell.
For achieving the above object, the queue management method during fast cell is selected between base station provided by the invention comprises:
UE (subscriber equipment) is carrying out between the base station fast cell when selecting, the up signaling that former Serving cell sends according to UE judges with new Serving cell whether adhere to different base station separately, if belong to same base station with new Serving cell, then transmitting state information and the queuing message of new Serving cell UE notified in the base station, former then Serving cell stops on the shared channel transfer of data to this UE, connect by new Serving cell and UE, according to transmitting state information and the queuing message service UE of this UE that is obtained, thereby finish the selection of fast cell; If adhere to different base stations separately with new Serving cell, base station under base station under the then former Serving cell and the new Serving cell connects, transmit this UE and carry out fast cell required associated transport state information and queuing message when selecting, new Serving cell according to the information service that receives in UE, thereby finish the selection of fast cell.
Described method also comprises, reverse power control commands according to former Serving cell, determine that UE sends the transmitted power when carrying out the up signaling of fast cell when selecting, and makes that during Serving cell changes the up signaling that UE sends only needs be detected reliably by former Serving cell.
Described method comprises that also UE sends the up signaling that fast cell is selected, and described up signaling need be fed back the information of selected new Serving cell.
Above-mentioned up signaling is fed back the ID (identification number) of new Serving cell, does not feed back the relevant transmitting state information of UE.
Described method comprises also the up signaling that the fast cell that the former Serving cell reception UE of UE sends is selected is in order to judge with new Serving cell whether belong to same base station.
From the above, in method of the present invention, when new, old two Serving cells do not belong to same base station, then connect by the base station under base station under the former Serving cell and the new Serving cell, transmit relevant transmitting state information of this UE and queuing message, can transmit this UE so more reliably and carry out associated transport state information and the queuing message that fast cell is selected; Simultaneously, in the present invention, because one of the measurement of each frame of UE feedback new Serving cell ID number, and do not need the feedback transmission state information, therefore can significantly reduce up signalling bandwidth, thereby can in the limit that allows bandwidth,, just can improve described up signaling by the correct detected probability of former Serving cell by its up signalling bandwidth of suitable increase; Because the up signaling that UE sends only requires and can be detected reliably by former Serving cell, make the reverse power control of the up signaling of UE only be subjected to the control of former Serving cell, UE need not take into account the reverse power control commands of several sub-districts simultaneously, thereby can reduce complexity and the uplink interference of UE.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the flow chart of the embodiment of the invention;
Fig. 2 uses the high speed data transmission system figure with distributed architecture of the present invention.
Embodiment
At first with reference to figure 2, Fig. 2 uses the high speed data transmission system figure with distributed architecture of the present invention, and this system adopts an example of the present invention, and in fact the present invention can be used for being not limited to the system of Fig. 2.Fast cell selects to have adopted distributed scheduling scheme between the high speed data transmission system base station shown in Fig. 2, being sent to IP bag in the network controller is sent to by radio frames in the base station of active set of this network controller, carry out the scheduling of IP bag by the base station, the first biography and the re-transmission of IP bag are all carried out in the base station.
Each frame of UE is measured all sub-districts in the active set, carries out cell selecting, selects Serving cell.A kind of possible method is, each frame of UE receives all the cell downlink Common Pilot Channel in the active set, measure the received signal intensity (RSCP) of each cell downlink Common Pilot Channel, the sub-district of selection intensity maximum is a Serving cell, perhaps receive all cell downlink Common Pilot Channel in active set at each frame of UE, when measuring the received signal intensity of each cell downlink Common Pilot Channel, can also receive system informations such as assignable power resource in transmission sub-district and sign indicating number resource, be Serving cell to select best cell.Need explanation, UE is according to the result who measures, active set of every frame update.Among the present invention, up signaling when UE sends the fast cell selection, described up signaling need be fed back the information of selected new Serving cell, promptly feeds back the ID of selected new Serving cell, indicate next Serving cell with ID, and do not feed back UE relevant transmitting state information.Because ID number of the Serving cell that UE feedback is upgraded, need not feed back relevant transmitting state information, can save upstream bandwidth, so can suitably increase the bandwidth of feedback signaling in allowed limits, for example adopt big redundant encoding scheme or the like, just can increase it by the correct probability that detects of former Serving cell.The information of cell selecting is fed back to former Serving cell by up signaling, the up signaling that the fast cell that the former Serving cell reception UE of UE sends is selected, in order to judge with new Serving cell whether belong to same base station, judge promptly whether next Serving cell belongs in the same base station with former Serving cell, have two kinds of situations like this, if two sub-districts do not belong to same base station, base station under base station under the then former Serving cell and the new Serving cell connects, a kind of method is to set up directly to connect, base station under the former Serving cell is transmitted this UE and is carried out fast cell required associated transport state information and queuing message when selecting by connecting base station under new Serving cell, new Serving cell according to the information service that receives in UE, thereby finish the selection of fast cell.If former, new two Serving cells all belong to same base station, then transmitting state information and the queuing message of new Serving cell UE notified in this base station.Former then Serving cell stops its transmission to this UE on shared channel, is connected by new Serving cell and UE, according to transmitting state information and the queuing message service UE of this UE that is obtained, thereby finishes the selection of fast cell.
Serving cell change during in, UE only needs former Serving cell to detect the up signaling of this UE reliably, and does not require the up signaling that all sub-districts in the active set or new Serving cell can detect it.Thereby the uplink power control of UE only need be considered the reverse power control commands to former Serving cell, therefore, in said method, need be according to the reverse power control commands of former Serving cell, transmitted power during the up signaling of determining that UE sends that fast cell selects, make that the up signaling that UE sends can be detected reliably by former Serving cell during Serving cell changes.
Fig. 1 is the flow chart of the embodiment of the invention.According to Fig. 1, in step 1, UE determines new Serving cell by measuring; In step 2, UE is according to the power control requirement of former Serving cell, the transmitted power of up signaling is set, make during Serving cell changes, the up signaling that UE sends can be detected reliably by former Serving cell, and described up signaling, this up signaling need be fed back the information of selected new Serving cell; In step 3, the up signaling that the fast cell that the former Serving cell reception UE of UE sends is selected is in order to judge with new Serving cell whether belong to same base station in step 4; In step 4, former Serving cell judges with new Serving cell whether adhere to different base station separately according to described up signaling, if belong to same base station with new Serving cell, then execution in step 5, transmitting state information and the queuing message of new Serving cell UE notified in the base station, former then Serving cell stops on the shared channel transfer of data to this UE, connect by new Serving cell and UE, according to transmitting state information and the queuing message service UE of this UE that is obtained, thereby finish the selection of fast cell; If adhere to different base stations separately with new Serving cell, then execution in step 6, base station under base station under the former Serving cell and the new Serving cell connects, transmit this UE and carry out fast cell required associated transport state information and queuing message when selecting, new Serving cell according to the information service that receives in UE, thereby finish the selection of fast cell.
Claims (5)
1, the queue management method during fast cell is selected between a kind of base station comprises:
UE (subscriber equipment) is carrying out between the base station fast cell when selecting, the up signaling that former Serving cell sends according to UE judges with new Serving cell whether adhere to different base station separately, if belong to same base station with new Serving cell, then transmitting state information and the queuing message of new Serving cell UE notified in the base station, former then Serving cell stops on the shared channel transfer of data to this UE, connect by new Serving cell and UE, according to transmitting state information and the queuing message service UE of this UE that is obtained, thereby finish the selection of fast cell; If adhere to different base stations separately with new Serving cell, base station under base station under the then former Serving cell and the new Serving cell connects, transmit this UE and carry out fast cell required associated transport state information and queuing message when selecting, new Serving cell according to the information service that receives in UE, thereby finish the selection of fast cell.
2, queue management method according to claim 1, it is characterized in that: this method also comprises, reverse power control commands according to former Serving cell, determine that UE sends the transmitted power of the up signaling of fast cell selection, make that during Serving cell changes the up signaling that UE sends only needs to be detected reliably by former Serving cell.
3, queue management method according to claim 1 is characterized in that: this method also comprises the step of the up signaling of the fast cell selection that the former Serving cell reception UE of UE sends.
4, queue management method according to claim 3 is characterized in that: described up signaling is fed back the ID (identification number) of new Serving cell, does not feed back the relevant transmitting state information of UE.
5, described in claim 1, during fast cell is selected between the base station, if former Serving cell adheres to different base station separately with new Serving cell, under base station under the then former Serving cell and the new Serving cell
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011188766A CN1138433C (en) | 2001-06-28 | 2001-06-28 | Queue managing method in fast society selection between base stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011188766A CN1138433C (en) | 2001-06-28 | 2001-06-28 | Queue managing method in fast society selection between base stations |
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| Publication Number | Publication Date |
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| CN1394097A CN1394097A (en) | 2003-01-29 |
| CN1138433C true CN1138433C (en) | 2004-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011188766A Expired - Fee Related CN1138433C (en) | 2001-06-28 | 2001-06-28 | Queue managing method in fast society selection between base stations |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369522C (en) * | 2004-02-26 | 2008-02-13 | 大唐移动通信设备有限公司 | Method for switching users between different subzones implemented within same station |
| KR20090045242A (en) * | 2006-08-22 | 2009-05-07 | 가부시키가이샤 엔티티 도코모 | Base station, mobile station, and cell selecting method |
| CN105519170A (en) * | 2013-04-24 | 2016-04-20 | 华为技术有限公司 | uplink feedback method, device and system |
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2001
- 2001-06-28 CN CNB011188766A patent/CN1138433C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1394097A (en) | 2003-01-29 |
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Granted publication date: 20040211 Termination date: 20170628 |