CN102036290A - Method, system and device for scheduling control channels - Google Patents
Method, system and device for scheduling control channels Download PDFInfo
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- CN102036290A CN102036290A CN2009100934640A CN200910093464A CN102036290A CN 102036290 A CN102036290 A CN 102036290A CN 2009100934640 A CN2009100934640 A CN 2009100934640A CN 200910093464 A CN200910093464 A CN 200910093464A CN 102036290 A CN102036290 A CN 102036290A
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Abstract
The invention discloses a method, a system and a device for scheduling control channels, and is used for improving the utilization rate of HSPA (high-speed downlink packet access) code channel resources, and further improving the cell throughput and the number of on-line users. The method for scheduling the control channels comprises the following steps: using a radio network controller (RNC) to determine the utilization rate of the high-speed packet switching HSPA control channels through a base station Node B; and using the RNC to compare the utilization rate of the HSPA control channels with a preset threshold value, and adjusting the number of the current HSPA control channels according to the comparison result.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of control channel dispatching method, system and device.
Background technology
At synchronous CDMA (Code Division Multiple Access) (TD-SCDMA of time-division, Time Division-SynchronousCode Division Multiple Access) in the system, evolution along with high-speed packet exchange (HSPA) technology, increasing business begins to adopt the HSPA carrying, along with the type of service of HSPA support and the increase of number of users, the number of HSPA control channel is also increasing, and this has caused the problem of following two aspects:
Introducing High Speed Uplink Packet access (HSUPA, high speed uplink packet access) technology, but the user does not support to cancel under the situation of DPCH (DPCH) channel again, for example in the version 7 (R7) of 3Gpp, the Typical Disposition of single carrier is shown in following table 1, the number of users of single carrier support this moment obviously is subject to the number (especially descending) of DPCH channel, is difficult to practical requirement.
Table 1
In the HSPA of evolution (HSPA+) technology, all business (comprising speech business) also will all be carried by the HSPA technology.Along with being on the increase of bearer service type and number of users, the control channel quantity of HSPA also needs corresponding increase.But, because time interval resource is very limited under the TD-SCDMA system, introduced the HSPA+ technology, especially considered the carrying to speech business, the Typical Disposition of single carrier is shown in following table 2, this moment time slot (TS) 1 and TS6 Be Controlled channel occupancy substantially all, even number of users is less, or most professional for data service, also can't vacate resource and be used for other channel, thereby influence user's impression, make handling up of cell carrier limited.
Table 2
In sum, prior art is changeless to the scheduling of HSPA control channel, not in conjunction with actual needs, can't realize dynamic dispatching, thereby reduce the utilance of code channel resource, has limited cell throughout and online number of users, has influenced user's impression.
Summary of the invention
The embodiment of the invention provides a kind of control channel dispatching method, system and device, in order to the utilance of HSPA code channel resource in the raising TD-SCDMA system, thereby improves cell throughout and online number of users.
A kind of control channel dispatching method that the embodiment of the invention provides comprises:
Radio network controller (RNC) is determined the utilance of high-speed packet exchange HSPA control channel by base station node B;
Described RNC compares the utilance of described HSPA control channel with the threshold value that sets in advance, and adjusts the quantity of current described HSPA control channel according to comparative result.
A kind of communication system that the embodiment of the invention provides comprises:
Radio network controller (RNC) is used for determining that by base station node B high-speed packet exchanges the utilance of HSPA control channel; And the utilance of described HSPA control channel and the threshold value that sets in advance compared, adjust the quantity of current described HSPA control channel according to comparative result;
Base station node B is used for the control according to described RNC, measures the utilance of HSPA control channel, and the utilance of the HSPA control channel that records is reported described RNC.
A kind of RNC that the embodiment of the invention provides comprises:
The utilance determining unit is used for determining that by base station node B high-speed packet exchanges the utilance of HSPA control channel;
The quantity adjustment unit is used for the utilance of described HSPA control channel is compared with the threshold value that sets in advance, and adjusts the quantity of current described HSPA control channel according to comparative result.
A kind of NodeB that the embodiment of the invention provides comprises:
The utilance measuring unit is used for the control according to radio network controller (RNC), measures the utilance of high-speed packet exchange HSPA control channel;
Utilance reports the unit, and the utilance that is used for the HSPA control channel that will record reports described RNC.
The embodiment of the invention, RNC determines the utilance of HSPA control channel by NodeB, RNC compares the utilance of HSPA control channel with the threshold value that sets in advance, and adjust the quantity of current HSPA control channel according to comparative result, thereby improved in the TD-SCDMA system, the code channel resource utilance of HSPA carrier wave has increased carrier wave throughput and online number of users, has improved user's impression.
Description of drawings
The overall procedure schematic diagram of a kind of control channel dispatching method that Fig. 1 provides for the embodiment of the invention;
The idiographic flow schematic diagram of a kind of control channel dispatching method that Fig. 2 provides for the embodiment of the invention;
The structural representation of a kind of communication system that Fig. 3 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of control channel dispatching method, system and device, in order to the utilance of HSPA code channel resource in the raising TD-SCDMA system, thereby improves cell throughout and online number of users.
The embodiment of the invention by network based current actual schedule demand, is dynamically adjusted the quantity of HSPA control channel, thereby improves the utilance of HSPA code channel resource, promotes cell throughout and number of users, improves user's impression.
The Typical Disposition of single carrier is shown in above-mentioned table 2, this moment, time slot (TS) 1 and TS6 were substantially taken by the HSPA control channel, but it is less to work as number of users in actual use, or it is most professional during for data service, the number of HSPA control channel can reduce fully, be used for other channel to vacate more resources, for example use for DPCH (DPCH), enhancing uplink physical channel (E-PUCH) or high-speed downstream Physical Shared Channel (HS-PDSCH), thereby improve user's impression, increase the carrier wave throughput of sub-district.
The technical scheme that the embodiment of the invention provides mainly comprises two aspect contents: the utilance (busy not busy degree) of assessment HSPA control channel, and the quantity of dynamically adjusting the HSPA control channel according to assessment result.
Referring to Fig. 1, the overall procedure of a kind of control channel dispatching method that the embodiment of the invention provides comprises step:
S101, RNC determine the utilance of HSPA control channel by NodeB.
S102, RNC compare the utilance of HSPA control channel with the threshold value that sets in advance, and adjust the quantity of current HSPA control channel according to comparative result.
Preferably, step S101 comprises:
Step 1: RNC sends the public-measurement control messages to NodeB, comprising the indication information of the utilance of measuring the HSPA control channel, need measure the utilance of the HSPA control channel of which type in order to indication NodeB.
Preferably, the utilance of the HSPA control channel of embodiment of the invention measurement comprises the utilance of two types HSPA control channel:
The utilance of the utilance of HSPA scheduling channel and HSPA feedback channel.
After step 2: NodeB receives the public-measurement control messages of RNC transmission, indication information according to the utilance of wherein measurement HSPA control channel, measure the utilance of HSPA control channel, and report the public-measurement report, wherein contain the utilance of the HSPA control channel that records to RNC.
Preferably, the step of the utilance of NodeB measurement HSPA control channel comprises:
For each HSPA scheduling channel, the number of times of this HSPA scheduling channel dispatched users in the NodeB statistics Preset Time section is with the utilance of this number of times as this HSPA scheduling channel.
Scheduling channel, the shared control channel of high-speed downlink shared channel (HS-SCCH) and strengthen the absolute grant channel (E-AGCH) of dedicated channel for example, per 5 milliseconds (ms) only can dispatched users once, and only can dispatch a user, the number of times of therefore adding up this HSPA scheduling channel dispatched users in a period of time just can be assessed the busy spare time of this HSPA scheduling channel at every turn.
In addition, when reality is used, can also be by sliding window mechanism, perhaps the forgetting factor by history is measured is measured the utilance of HSPA scheduling channel.
Wherein, by sliding window mechanism the utilance of HSPA scheduling channel is measured, it is a kind of method in common, promptly set the window long (number of samples that is used to add up) of sampling, then As time goes on, window constantly slides, thereby measures the number of times of HSPA scheduling channel dispatched users in the certain hour section.
By the forgetting factor that history is measured the utilance of HSPA scheduling channel is measured, it also is a kind of method in common, be about to the number of times of HSPA scheduling channel dispatched users of current measurement and the number of times of the HSPA scheduling channel dispatched users measured for several times before and be weighted on average, with the mean value that obtains utilance as current HSPA scheduling channel.
For each HSPA feedback channel, this HSPA feedback channel is distributed to user's number of times in the NodeB statistics Preset Time section, with the utilance of this number of times as this HSPA feedback channel.
The HSPA feedback channel, for example strengthen dedicated channel and mix automatic repeat requests affirmation indicating channel (E-HICH), for the E-HICH individual channel, every 5ms can be used for a plurality of users' feedback, therefore add up interior this E-HICH individual channel of Preset Time section and distribute to user's number of times (promptly in the timing statistics section, the number of users of every 5ms feedback add up and), can reflect the utilance of HSPA feedback channel.
In like manner, when reality is used, also can be by sliding window mechanism, perhaps the forgetting factor by history is measured is measured the utilance of HSPA feedback channel.
Step 3: RNC receives the public-measurement report that NodeB reports, and therefrom obtains the utilance of HSPA control channel, thereby determines the utilance of current HSPA control channel.
Preferably, RNC send to also comprise the public-measurement report in the public-measurement control messages of NodeB report the mode indication information, be used to indicate NodeB to adopt which kind of mode to report the public-measurement report.The concrete mode that reports comprises three kinds: report immediately, periodic report, reporting events.
If report immediately, after then NodeB has recorded the utilance of HSPA control channel, give RNC with the utilance of this HSPA control channel by the public-measurement report reporting immediately.
If periodic report after then NodeB has recorded the utilance of HSPA control channel, when arriving the report cycle of public-measurement report, just can be given RNC by the public-measurement report reporting with the utilance of this HSPA control channel.Concrete report cycle can be indicated to NodeB by the public-measurement control messages by RNC, also can set in advance in NodeB, and promptly RNC and NodeB consult in advance.
If reporting events after then NodeB has recorded the utilance of HSPA control channel, when having satisfied the condition of reporting events, just can be given RNC by the public-measurement report reporting with the utilance of this HSPA control channel.Wherein, the condition of reporting events, the utilance of for example current HSPA control channel be greater than 100 times/second (s), and the utilance of HSPA control channel was greater than the state continuance of 100 times/s 3 seconds.
The condition of concrete reporting events also can be indicated to NodeB by the public-measurement control messages by RNC, also can set in advance in NodeB, and promptly RNC and NodeB consult in advance.
In addition, RNC sends in the public-measurement control messages of NodeB can also comprise the necessary parameter of utilance of measuring the HSPA control channel, for example: measuring period and forgetting factor.
Therefore, preferably, NodeB reports the step of public-measurement report to comprise to RNC:
NodeB when send according to RNC report the mode indication information to judge to satisfy report condition the time, report the public-measurement report to RNC.
Preferably, step S102 comprises:
RNC increases the quantity of HSPA control channel when the utilance of judging the HSPA control channel during greater than the higher limit that sets in advance;
RNC reduces the quantity of HSPA control channel when the utilance of judging the HSPA control channel during less than the lower limit that sets in advance, and wherein the minimum number of HSPA control channel is 1, promptly can have the HSPA control channel.
To sum up, the idiographic flow of a kind of control channel dispatching method that the embodiment of the invention provides as shown in Figure 2, RNC at first sends the public-measurement control messages to NodeB, indicates it to carry out the measurement of utilance at specific HSPA control channel type.Wherein to scheduling channel, the scheduling times of measurement unit's time single control channel; To feedback channel, measurement unit's time, single feedback channel was distributed to user's number of times.And, in this public-measurement control messages, also indicated the mode that reports of NodeB measurement report.
NodeB begins to carry out measurement of correlation after receiving the public-measurement control messages of RNC transmission, when having satisfied the report condition of public-measurement report, by the public-measurement report measurement result is reported RNC.
RNC obtains measurement result after receiving public-measurement report, and whether the utilance of judging current HSPA control channel greater than the higher limit that sets in advance, if then increase the control channel of the type; Otherwise whether the utilance of judging current HSPA control channel less than the lower limit that sets in advance, if then reduce the control channel of the type; Otherwise, do not adjust the operation of HSPA control channel quantity.
Certainly, whether the utilance that also can judge current HSPA control channel earlier if the utilance of current HSPA control channel be not less than the lower limit that set in advance judges the utilance of current HSPA control channel whether greater than the higher limit that set in advance less than the lower limit that sets in advance again.
The embodiment of the invention can be provided with different utilance higher limit and lower limit at HSPA scheduling channel and HSPA feedback channel respectively in advance.Promptly, be adopted as the higher limit of HSPA scheduling channel setting and the judgement whether lower limit needs to adjust HSPA scheduling channel quantity for the HSPA scheduling channel; For the HSPA feedback channel, be adopted as the higher limit of HSPA feedback channel setting and the judgement whether lower limit needs to adjust HSPA feedback channel quantity.
Referring to Fig. 3, a kind of communication system that the embodiment of the invention provides comprises:
Radio network controller (RNC) 11 is used for the utilance by base station node B 12 definite HSPA control channels; And the utilance of HSPA control channel and the threshold value that sets in advance compared, adjust the quantity of current HSPA control channel according to comparative result.
Base station node B 12 is used for the control according to RNC 11, measures the utilance of HSPA control channel, and the utilance of the HSPA control channel that records is reported RNC 11.
Preferably, RNC 11 comprises:
Preferably, utilance determining unit 111 sends the public-measurement control messages to NodeB 12, comprising the indication information of the utilance of measuring the HSPA control channel; Receive the public-measurement report that NodeB 12 sends, and therefrom determine the utilance of HSPA control channel.
Preferably, described utilance determining unit 111 in the indication information of the utilance of the measurement HSPA control channel that described NodeB 12 sends, contains the indication information of the utilance of the utilance of measuring the HSPA scheduling channel and HSPA feedback channel.
Preferably, described utilance determining unit 111, in the public-measurement control messages that described NodeB 12 sends, what also comprise the public-measurement report reports the mode indication information.
Preferably, described quantity adjustment unit 112 when the utilance of judging the HSPA control channel during greater than the higher limit that sets in advance, increases the quantity of HSPA control channel; When the utilance of judging the HSPA control channel during less than the lower limit that sets in advance, reduce the quantity of HSPA control channel, wherein the minimum number of HSPA control channel is 1.
Preferably, NodeB 12 comprises:
Utilance reports unit 122, and the utilance that is used for HSPA control channel that utilance measuring unit 121 is recorded reports RNC 11.
Preferably, utilance measuring unit 121, receive the public-measurement control messages that RNC 11 sends after, according to the indication information of the utilance of wherein measurement HSPA control channel, measure the utilance of HSPA control channel.
Utilance reports unit 122, and by public-measurement report, the utilance of the HSPA control channel that utilance measuring unit 121 is recorded reports RNC 11.
Preferably, described utilance measuring unit 121, for each HSPA scheduling channel, the number of times of this HSPA scheduling channel dispatched users in the statistics Preset Time section is with the utilance of this number of times as this HSPA scheduling channel; For each HSPA feedback channel, this HSPA feedback channel is distributed to user's number of times in the statistics Preset Time section, with the utilance of this number of times as this HSPA feedback channel.
Preferably, described utilance reports unit 122, when send according to RNC 11 report the mode indication information to judge to satisfy report condition the time, report the public-measurement report to RNC 11.
In sum, RNC in the embodiment of the invention determines the utilance of HSPA control channel by NodeB, RNC compares with the threshold value that sets in advance by the utilance with the HSPA control channel, dynamically adjust the quantity of current HSPA control channel, thereby improved in the TD-SCDMA system, the code channel resource utilance of HSPA carrier wave has increased carrier wave throughput and online number of users, has improved user's impression.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. a control channel dispatching method is characterized in that, this method comprises:
Radio network controller (RNC) is determined the utilance of high-speed packet exchange HSPA control channel by base station node B;
Described RNC compares the utilance of described HSPA control channel with the threshold value that sets in advance, and adjusts the quantity of current described HSPA control channel according to comparative result.
2. method according to claim 1 is characterized in that, described RNC determines that by NodeB the step of the utilance of HSPA control channel comprises:
Described RNC sends the public-measurement control messages to NodeB, comprising the indication information of the utilance of measuring the HSPA control channel;
After described NodeB receives described public-measurement control messages,, measure the utilance of HSPA control channel, and report the public-measurement report, wherein contain the utilance of the HSPA control channel that records to described RNC according to described indication information;
Described RNC receives described public-measurement report, and therefrom determines the utilance of HSPA control channel.
3. method according to claim 2 is characterized in that, the utilance of described HSPA control channel comprises: the utilance of the utilance of HSPA scheduling channel and HSPA feedback channel;
The step that described NodeB measures the utilance of HSPA control channel comprises:
For each HSPA scheduling channel, the number of times of this HSPA scheduling channel dispatched users in the described NodeB statistics Preset Time section is with the utilance of this number of times as this HSPA scheduling channel;
For each HSPA feedback channel, this HSPA feedback channel is distributed to user's number of times in the described NodeB statistics Preset Time section, with the utilance of this number of times as this HSPA feedback channel.
4. according to claim 2 or 3 described methods, it is characterized in that what also comprise the report of described public-measurement in the described public-measurement control messages reports the mode indication information;
Described NodeB reports the step of described public-measurement report to comprise to described RNC:
Described NodeB is when when reporting the mode indication information to judge to satisfy report condition, reporting described public-measurement report to described RNC according to described.
5. method according to claim 1 is characterized in that, the step that described RNC adjusts the quantity of current described HSPA control channel according to comparative result comprises:
Described RNC increases the quantity of described HSPA control channel when the utilance of judging described HSPA control channel during greater than the higher limit that sets in advance;
Described RNC reduces the quantity of described HSPA control channel when the utilance of judging described HSPA control channel during less than the lower limit that sets in advance, and the minimum number of wherein said HSPA control channel is 1.
6. a communication system is characterized in that, this system comprises:
Radio network controller (RNC) is used for determining that by base station node B high-speed packet exchanges the utilance of HSPA control channel; And the utilance of described HSPA control channel and the threshold value that sets in advance compared, adjust the quantity of current described HSPA control channel according to comparative result;
Base station node B is used for the control according to described RNC, measures the utilance of HSPA control channel, and the utilance of the HSPA control channel that records is reported described RNC.
7. system according to claim 6 is characterized in that, described RNC comprises:
The utilance determining unit is used for sending the public-measurement control messages to NodeB, comprising the indication information of the utilance of measuring the HSPA control channel; Receive the public-measurement report that described NodeB sends, and therefrom determine the utilance of HSPA control channel;
The quantity adjustment unit is used for the utilance of described HSPA control channel is compared with the threshold value that sets in advance, and adjusts the quantity of current described HSPA control channel according to comparative result;
Described NodeB comprises:
The utilance measuring unit, be used to receive the public-measurement control messages that described RNC sends after, according to the indication information of the utilance of wherein measurement HSPA control channel, measure the utilance of HSPA control channel;
Utilance reports the unit, is used for sending the public-measurement report to described RNC, wherein contains the utilance of the HSPA control channel that records.
8. system according to claim 7, it is characterized in that, described utilance determining unit in the indication information of the utilance of the measurement HSPA control channel that described NodeB sends, contains the indication information of the utilance of the utilance of measuring the HSPA scheduling channel and HSPA feedback channel;
Described utilance measuring unit, for each HSPA scheduling channel, the number of times of this HSPA scheduling channel dispatched users in the statistics Preset Time section is with the utilance of this number of times as this HSPA scheduling channel; For each HSPA feedback channel, this HSPA feedback channel is distributed to user's number of times in the statistics Preset Time section, with the utilance of this number of times as this HSPA feedback channel.
9. according to claim 7 or 8 described systems, it is characterized in that, described utilance determining unit, in the public-measurement control messages that described NodeB sends, what also comprise described public-measurement report reports the mode indication information;
Described utilance reports the unit, when when reporting the mode indication information to judge to satisfy report condition, reporting described public-measurement report to described RNC according to described.
10. system according to claim 7 is characterized in that, described quantity adjustment unit when the utilance of judging described HSPA control channel during greater than the higher limit that sets in advance, increases the quantity of described HSPA control channel; When the utilance of judging described HSPA control channel during less than the lower limit that sets in advance, reduce the quantity of described HSPA control channel, the minimum number of wherein said HSPA control channel is 1.
11. a radio network controller (RNC) is characterized in that, described RNC comprises:
The utilance determining unit is used for determining that by base station node B high-speed packet exchanges the utilance of HSPA control channel;
The quantity adjustment unit is used for the utilance of described HSPA control channel is compared with the threshold value that sets in advance, and adjusts the quantity of current described HSPA control channel according to comparative result.
12. a base station node B is characterized in that, described NodeB comprises:
The utilance measuring unit is used for the control according to radio network controller (RNC), measures the utilance of high-speed packet exchange HSPA control channel;
Utilance reports the unit, and the utilance that is used for the HSPA control channel that will record reports described RNC.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044637A1 (en) * | 2011-09-30 | 2013-04-04 | 中兴通讯股份有限公司 | Perfomance conrol method and device for evolution base station system |
| CN103167560A (en) * | 2011-12-16 | 2013-06-19 | 鼎桥通信技术有限公司 | Fully dynamic carrier wave adjusting method and device for improving throughput of user |
| CN107846269A (en) * | 2016-09-20 | 2018-03-27 | 工业和信息化部电信研究院 | A kind of radio control channel design method and device |
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2009
- 2009-09-24 CN CN2009100934640A patent/CN102036290A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044637A1 (en) * | 2011-09-30 | 2013-04-04 | 中兴通讯股份有限公司 | Perfomance conrol method and device for evolution base station system |
| CN103037410A (en) * | 2011-09-30 | 2013-04-10 | 中兴通讯股份有限公司 | Performance control method and device applied to eNB system |
| CN103167560A (en) * | 2011-12-16 | 2013-06-19 | 鼎桥通信技术有限公司 | Fully dynamic carrier wave adjusting method and device for improving throughput of user |
| CN103167560B (en) * | 2011-12-16 | 2015-04-08 | 鼎桥通信技术有限公司 | Fully dynamic carrier wave adjusting method and device for improving throughput of user |
| CN107846269A (en) * | 2016-09-20 | 2018-03-27 | 工业和信息化部电信研究院 | A kind of radio control channel design method and device |
| CN107846269B (en) * | 2016-09-20 | 2020-05-15 | 工业和信息化部电信研究院 | Wireless control channel design method and device |
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Application publication date: 20110427 |