CN101610581B - Terminal identifier distribution method and communication system - Google Patents
Terminal identifier distribution method and communication system Download PDFInfo
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- CN101610581B CN101610581B CN2008101151268A CN200810115126A CN101610581B CN 101610581 B CN101610581 B CN 101610581B CN 2008101151268 A CN2008101151268 A CN 2008101151268A CN 200810115126 A CN200810115126 A CN 200810115126A CN 101610581 B CN101610581 B CN 101610581B
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Abstract
The invention provides a terminal identifier distribution method and a communication system. The method comprises the following steps that: A, a base station distributes a plurality of terminal identifiers from a self maintained terminal identifier resource pool to trunk equipment; and B, after receiving access request of a user, the trunk equipment selects one of the plurality of terminal identifiers and distributes the terminal identifier to the user. Because of the trunk managed and distributed terminal identifier, the access time delay of the user can be effectively shortened, and the signaling interaction expense can be reduced.
Description
Technical field
The present invention relates to the communications field, relate in particular to based on the terminal identifier distribution method in the cellular network communicating system of relaying.
Background technology
In existing network system based on shared channel, for example Long Term Evolution (LTE) inserts (HSPA) with high-speed packet, the resource of a plurality of user's shared service channels at a time, specifically uses resource to be indicated by the terminal iidentification that carries on the control channel by which user.In a cellular cell, among the user who is accepting to serve, different user is assigned with different terminal iidentifications, thereby can not produce ambiguity when dispatched users.In the LTE system, this sign is called Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI), and in the process of user applies connecting system, promptly distributes in the random access procedure.
Referring to Fig. 1, the random access procedure of existing LTE system mainly comprises the steps:
Step 101: terminal sends random access lead code (preamble).
Step 102: after the base station detects the preamble of terminal transmission, it is fed back, for the user distributes C-RNTI, use the sign of random access procedure special use simultaneously: the downlink resource that random access radio network temporary mark (RA-RNTI) indicates this secondary response to use, and divide the ascending resource that is used in step 103.
Step 103: terminal utilizes RA-RNTI to receive downlink information on the downlink resource position of correspondence, and therefrom obtains the C-RNTI that distributes to it, and the ascending resource that uses step 102 to distribute simultaneously sends feedback information or service connection foundation request to the base station.
Step 104: in step 104 and the follow-up communication process, the base station will use the C-RNTI that distributes for this user that it is dispatched, and be that it distributes the required communication resource of up-downlink direction.
In the mobile communication system in future, for example in the enhancement techniques of back three generations (B3G) or LTE, system will provide higher peak data rate and cell throughout, also need bigger bandwidth simultaneously.At present the following unassigned bandwidth of 2GHz seldom, the part or all of bandwidth that the B3G system needs can only be on higher frequency range, for example 3GHz is above seeks.Frequency range is high more, and it is fast more that radio wave propagation is decayed, and transmission range is short more, under the therefore same overlay area, guarantee continuous covering, needs more base station.Because the base station has higher cost usually, increase the base station and can increase the cost of arranging net undoubtedly.In order to solve the cost problem of arranging net, each manufacturer and standardization body begin one's study relaying (relay) are incorporated in the cellular system, cover to increase.Fig. 2 is the relay application schematic diagram of prior art, and among the figure, BS represents the base station, and RS represents relaying.By the application of relaying, except can Extended Cell edges cover (for example RS1), can also increase capacity (for example be positioned at sub-district in the middle of RS2) and solution shadow region communicate by letter (for example RS3).
Relaying is only realized simple data processing function usually, so cost is lower than the base station, reasonably uses relaying to arrange net, and can reach the purpose that reduces the cost of arranging net.
After introducing via node, the user in the relaying overlay area will provide service by relaying.According to present cellular network design philosophy, the resource that unified management is subordinated to all relayings of this base station is responsible in the base station, and for example, the C-RNTI that the user can use is by base station unified management and distribution.When the user in the relaying overlay area initiated random access procedure, relaying must be transmitted to the base station with the request that terminal is initiated, and is terminal distribution C-RNTI by the base station, notifies relaying then, was the C-RNTI of its distribution by relaying notice terminal again.This kind terminal identifier distribution method and since need to carry out between relaying and the base station twice mutual, this has not only increased the Signalling exchange expense, has prolonged the response time to terminal simultaneously, thereby influences user experience.
Summary of the invention
Technical problem to be solved by this invention provides a kind of terminal identifier distribution method and communication system, to shorten user's access delay.
For solving the problems of the technologies described above, it is as follows to the invention provides technical scheme:
A kind of terminal identifier distribution method comprises the steps:
A, base station distribute a plurality of terminal iidentifications to give trunking from the terminal iidentification resource pool of self maintained;
After B, trunking receive user's access request, from described a plurality of terminal iidentifications, select one and distribute to the user.
Above-mentioned method, in the steps A, the number of users that the base station can be supported according to trunking distributes the terminal iidentification of respective numbers to give trunking.
Above-mentioned method, in the steps A, the ratio of the quantity of the terminal iidentification that the base station has also dispensed according to trunking and the quantity of the terminal iidentification of distributing to described trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
Above-mentioned method, in the steps A, the quantity of the terminal iidentification that the base station does not also dispense according to trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
Above-mentioned method, in the steps A, the ratio of the quantity of the terminal iidentification that the base station has also dispensed according to this base station and the total quantity of the terminal iidentification in the described terminal iidentification resource pool is adjusted the quantity of the terminal iidentification of distributing to described trunking.
Above-mentioned method, in the steps A, the quantity of the terminal iidentification that the base station does not also dispense according to this base station is adjusted the quantity of the terminal iidentification of distributing to described trunking.
Above-mentioned method, in the steps A, the base station is any in the terminal iidentification that distributes of first trunking in the described trunking, is different from any in the terminal iidentification that distributes for second trunking in the described trunking.
Above-mentioned method, wherein, also comprise after the step B: the terminal iidentification that trunking will be distributed to the user reports the base station; The sign of terminal iidentification that the base station reports according to trunking and the trunking that reports described terminal iidentification is carried out data forwarding.
A kind of communication system comprises, base station, trunking and user terminal, wherein:
Described base station is used for distributing a plurality of terminal iidentifications to give described trunking from the terminal iidentification resource pool of self maintained;
Described trunking is used for after the access request that receives described user terminal, selects one and distribute to described user terminal from described a plurality of terminal iidentifications.
Above-mentioned system, wherein, the number of users that described base station further can be supported according to described trunking distributes the terminal iidentification of respective numbers to give described trunking.
Above-mentioned system, wherein, described base station also is used for, and the ratio of the quantity of the terminal iidentification that has dispensed according to trunking and the quantity of the terminal iidentification of distributing to described trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
Above-mentioned system, wherein, described base station also is used for, and the quantity of the terminal iidentification that does not dispense according to trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
Above-mentioned system, wherein, described trunking also is used for, and the terminal iidentification of distributing to user terminal is reported the base station; Described base station also is used for, and the sign of terminal iidentification that reports according to trunking and the trunking that reports described terminal iidentification is carried out data forwarding.
Compared with prior art, the present invention can shorten user's access delay effectively by relay management and distributing terminals sign, reduces the Signalling exchange expense.
Description of drawings
Fig. 1 is the random access procedure schematic diagram of existing LTE system;
Fig. 2 is the relay application schematic diagram of prior art;
Fig. 3 is the terminal identifier distribution method flow chart of the embodiment of the invention.
Embodiment
Key of the present invention is, terminal iidentification is carried out distributed management, promptly by relay management and a part of terminal iidentification of control, when the user in the relaying coverage initiates to insert at random, is user's distributing terminals sign by relaying.
For making the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the accompanying drawings and the specific embodiments.
With reference to Fig. 3, the terminal identifier distribution method of the embodiment of the invention mainly comprises the steps:
Step 301: the base station distributes a plurality of terminal iidentifications to give trunking from the terminal iidentification resource pool of self maintained;
Step 302: after trunking receives user's access request, from described a plurality of terminal iidentifications, select one and distribute to the user.
In step 301, the base station can comprise following dual mode for trunking distributing terminals sign:
Mode 1, base station are divided the part terminal iidentification and are given trunking from its terminal iidentification resource pool, and, there is not common factor between the terminal iidentification set that each trunking is assigned to.
The number of users that this trunking can be supported can be estimated according to resource quantity, ability and the coverage of trunking in the base station, distributes the terminal iidentification of respective numbers to give this trunking then in view of the above.
Further, according to the trunking variation of access customer number amount, the base station can also be periodically or the adjustment of trigger-type ground distribute to the quantity of the terminal iidentification of described trunking, possible triggering mode is:
Relative value triggers: the ratio of quantity of terminal iidentification that the quantity of the terminal iidentification that has dispensed when relaying equipment and base station assigns are given described trunking triggers the quantity that the terminal iidentification of described trunking is distributed in the base station increase during greater than certain default thresholding; Otherwise, when aforementioned proportion is lower than another default thresholding, trigger the quantity that the terminal iidentification of distributing to described trunking is reduced in the base station.
Absolute value triggers: the quantity of the terminal iidentification that does not dispense when relaying equipment triggers the quantity that the base station increases the terminal iidentification of distributing to described trunking during less than certain default thresholding; Otherwise the quantity of the terminal iidentification that does not dispense when relaying equipment triggers the quantity that the terminal iidentification of distributing to described trunking is reduced in the base station during greater than another default thresholding.
Further, the base station can also be adjusted the quantity of the terminal iidentification of distributing to described trunking according to the quantity of the terminal iidentification that has dispensed:
For example, the ratio of the quantity of the terminal iidentification that has dispensed when the base station and the total quantity of the terminal iidentification in the described terminal iidentification resource pool is during greater than certain default thresholding, and the quantity of the terminal iidentification of distributing to described trunking is reduced in described base station; Otherwise when aforementioned proportion was lower than another default thresholding, described base station increased the quantity of the terminal iidentification of distributing to described trunking.
Again for example, the quantity of the terminal iidentification that does not dispense when the base station is during less than certain default thresholding, and the quantity of the terminal iidentification of distributing to described trunking is reduced in described base station; Otherwise the quantity of the terminal iidentification that does not dispense when the base station is during greater than another default thresholding, and described base station increases the quantity of the terminal iidentification of distributing to described trunking.
Mode 2, base station are with all or part of trunking that is allocated to of its terminal iidentification resource pool, and can there be common factor in the terminal iidentification that each trunking is assigned between gathering.
In mode 2, the terminal iidentification quantity of trunking control is abundant, does not generally have not enough problem.But owing to the terminal iidentification set of using between the trunking under the base stations control can all or part ofly overlap, so the user that the base station must have the way differentiation to be assigned with certain terminal iidentification serves under which trunking.A kind of feasible method is: the base station uses the method for trunking sign+terminal iidentification to determine user's ownership.
In the present invention, trunking also reports the base station with the terminal iidentification that is distributed after identifying for user's distributing terminals.At this moment, the base station is except user's terminal iidentification distributed in record, also want the sign sign of the trunking of described terminal iidentification (that is: report) of the trunking at recording user place, thereby can forward the data to corresponding relay smoothly, be transmitted to the user by relaying again.
For example, suppose that a base station can administer 6 trunkings at most, then can use the trunking sign of 3bit, as following table:
| The sign value | Implication |
| 000? | The base station |
| 001? | Trunking 1 |
| 010? | Trunking 2 |
| 011? | Trunking 3 |
| 100? | Trunking 4 |
?
| 101? | Trunking 5 |
| 110? | Trunking 6 |
| 111? | Reserve |
Correspondingly, the present invention also provides a kind of communication system, and described communication system comprises: base station, trunking and user terminal.Described base station is used for distributing a plurality of terminal iidentifications to give described trunking from the terminal iidentification resource pool of self maintained; Described trunking is used for after the access request that receives described user terminal, selects one and distribute to described user terminal from described a plurality of terminal iidentifications.
Further, the number of users that can support according to described trunking of described base station distributes the terminal iidentification of respective numbers to give described trunking.
As previously mentioned, according to the trunking variation of access customer number amount, the quantity of the terminal iidentification of distributing to described trunking can also be adjusted in the base station, particularly:
The ratio of the quantity of the terminal iidentification that the base station has dispensed according to trunking and the quantity of the terminal iidentification of distributing to described trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking; Perhaps,
The quantity of the terminal iidentification that does not dispense according to trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
Wherein, described trunking also is used for, and the terminal iidentification of distributing to user terminal is reported the base station; Described base station also is used for, and the sign of terminal iidentification that reports according to trunking and the trunking that reports described terminal iidentification is carried out data forwarding.
In sum, the present invention can shorten user's access delay effectively by relay management and distributing terminals sign, reduces the Signalling exchange expense.
Should be noted that at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spiritual scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (13)
1. a terminal identifier distribution method is characterized in that, comprises the steps:
A, base station distribute a plurality of terminal iidentifications to give trunking from the terminal iidentification resource pool of self maintained;
After B, trunking receive user's access request, from described a plurality of terminal iidentifications, select one and distribute to the user.
2. the method for claim 1 is characterized in that:
In the steps A, the number of users that the base station can be supported according to trunking distributes the terminal iidentification of respective numbers to give trunking.
3. method as claimed in claim 2 is characterized in that:
In the steps A, the ratio of the quantity of the terminal iidentification that the base station has also dispensed according to trunking and the quantity of the terminal iidentification of distributing to described trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
4. method as claimed in claim 2 is characterized in that:
In the steps A, the quantity of the terminal iidentification that the base station does not also dispense according to trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
5. method as claimed in claim 2 is characterized in that:
In the steps A, the ratio of the quantity of the terminal iidentification that the base station has also dispensed according to this base station and the total quantity of the terminal iidentification in the described terminal iidentification resource pool is adjusted the quantity of the terminal iidentification of distributing to described trunking.
6. method as claimed in claim 2 is characterized in that:
In the steps A, the quantity of the terminal iidentification that the base station does not also dispense according to this base station is adjusted the quantity of the terminal iidentification of distributing to described trunking.
7. as each described method in the claim 1 to 6, it is characterized in that:
In the steps A, the base station is any in the terminal iidentification that distributes of first trunking in the described trunking, is different from any in the terminal iidentification that distributes for second trunking in the described trunking.
8. the method for claim 1 is characterized in that, also comprises after the step B:
The terminal iidentification that trunking will be distributed to the user reports the base station;
The sign of terminal iidentification that the base station reports according to trunking and the trunking that reports described terminal iidentification is carried out data forwarding.
9. a communication system comprises, base station, trunking and user terminal is characterized in that:
Described base station is used for distributing a plurality of terminal iidentifications to give described trunking from the terminal iidentification resource pool of self maintained;
Described trunking is used for after the access request that receives described user terminal, selects one and distribute to described user terminal from described a plurality of terminal iidentifications.
10. system as claimed in claim 9 is characterized in that:
The number of users that described base station further can be supported according to described trunking distributes the terminal iidentification of respective numbers to give described trunking.
11. system as claimed in claim 10 is characterized in that:
Described base station also is used for, and the ratio of the quantity of the terminal iidentification that has dispensed according to trunking and the quantity of the terminal iidentification of distributing to described trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
12. system as claimed in claim 10 is characterized in that:
Described base station also is used for, and the quantity of the terminal iidentification that does not dispense according to trunking is adjusted the quantity of the terminal iidentification of distributing to described trunking.
13. system as claimed in claim 9 is characterized in that:
Described trunking also is used for, and the terminal iidentification of distributing to user terminal is reported the base station;
Described base station also is used for, and the sign of terminal iidentification that reports according to trunking and the trunking that reports described terminal iidentification is carried out data forwarding.
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| CN102238542A (en) * | 2010-04-20 | 2011-11-09 | 中兴通讯股份有限公司 | Method and system for reestablishing radio resource control (RRC) of user equipment (UE) under relay node (RN) |
| CN103401694B (en) * | 2013-05-09 | 2017-06-27 | 瑞斯康达科技发展股份有限公司 | A kind of method and system for realizing node administration |
| PL3398362T3 (en) * | 2015-12-30 | 2023-12-27 | Deutsche Telekom Ag | Communication system for the communication in a communication network having sub-networks |
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| CN101141790A (en) * | 2006-09-08 | 2008-03-12 | 华为技术有限公司 | Method, system, base station for notification terminal to use resource and terminal of determining use resource |
| KR20080028054A (en) * | 2006-09-26 | 2008-03-31 | 삼성전자주식회사 | Apparatus and method for handover in multi-hop relay broadband wireless communication system |
| CN101155421A (en) * | 2006-09-29 | 2008-04-02 | 北京三星通信技术研究有限公司 | Method and device for distributing temporary recognition number of subdistrict wireless network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141790A (en) * | 2006-09-08 | 2008-03-12 | 华为技术有限公司 | Method, system, base station for notification terminal to use resource and terminal of determining use resource |
| KR20080028054A (en) * | 2006-09-26 | 2008-03-31 | 삼성전자주식회사 | Apparatus and method for handover in multi-hop relay broadband wireless communication system |
| CN101155421A (en) * | 2006-09-29 | 2008-04-02 | 北京三星通信技术研究有限公司 | Method and device for distributing temporary recognition number of subdistrict wireless network |
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