CN101400129A - Random access resource distributing method - Google Patents
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- CN101400129A CN101400129A CNA200710151565XA CN200710151565A CN101400129A CN 101400129 A CN101400129 A CN 101400129A CN A200710151565X A CNA200710151565X A CN A200710151565XA CN 200710151565 A CN200710151565 A CN 200710151565A CN 101400129 A CN101400129 A CN 101400129A
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Abstract
The invention discloses a random access resource distribution method, comprising that: the step S102, a base station builds a mapping relation between special random access resources and public random access resource; the step S104, the terminal selects the random access resources to perform random access according to the mapping relation, or the base station selects the random access resources and informs the terminal to perform random access according to the mapping relation. According to the random access resource distribution method of the invention, when the special random access resource distributed to the mobile terminal is run out, colliding probability is reduced when the random access is not completed, and public random access resources are required, thereby increasing efficiency of the random access.
Description
Technical field
The present invention relates to the communications field, relate in particular to the random access resource distributing method in a kind of communication system.
Background technology
Evolution and development of Communication Technique along with network, the mobile communication system of a new generation must can support 100Mbps (Mbps: MBPS) transmission quality that Yi Shang all-IP high-speed packet data transmission, the high terminal mobility of support, support are high, high spectrum efficiency and power efficiency is provided, and can effectively be supported in the variation of great dynamic ranges such as user data rate, user capacity, service quality and translational speed.Because the increase of user density, the increasing of traffic carrying capacity and the raising of translational speed cause the anxiety of random access resource, so when guaranteeing user's cut-in quality, must further improve the service efficiency of random access resource.
Division and use for random access resource in the existing communication system mainly contain two kinds of methods: a kind of is to have only public random access resource, this resource is all used in all accesses at random, and another is to be divided into dedicated random access resource and public random access resource.Use has only the method for public random access resource that the random access resource overall efficiency is improved, but can't satisfy those to the demanding situation of access delay at random such as switching.Be divided into inserting at random under the situations such as public and special-purpose accidental access method can guarantee to switch to non-competing, can satisfy their delay requirement, but because private resource is limited, if access takies the private resource overlong time then can have influence on the access at random that other will use private resource at random, this just must distribute more resources to give non-competing access at random, can influence the efficient of the integral body that inserts at random so again.
The main focus of prior art is the problem of dedicated random access resource and public each self-optimizing of random access resource, and is less to the concern that collaborative work is between the two optimized.
Summary of the invention
One or more problems in view of the above, the invention provides a kind of random access resource distributing method, make when distributing to the dedicated random access resource of terminal to after date, insert the probability do not finish and to collide need migrate public random access resource the time at random and reduce, thereby improve the efficient that inserts at random.
Random access resource distributing method according to the present invention may further comprise the steps: step S102, and the mapping relations between dedicated random access resource and the public random access resource are set up in the base station; And step S104, inserting at random, or select random access resource and be notified to terminal to insert at random according to mapping relations by the base station according to mapping relations Information Selection random access resource for terminal.
Wherein, in step S102, the base station will comprise that the random access resource division information of mapping relations information is handed down to terminal.Or employing base station and the known random access resource mapping relations of terminal information.
Wherein, in step S104, use at needs under the situation of dedicated random access resource, the base station is the life cycle of terminal distribution dedicated random access resource and dedicated random access resource.Random access resource is one of at least combination in time-domain resource, frequency domain resource and the sign indicating number resource.Mapping relations comprise: the corresponding relation between the subclass of the subclass of dedicated random access resource or set and public random access resource or the set.
Wherein, the type of mapping relations comprises following at least a: the combination that one of at least combination one of is less than or equal in frequency domain resource in the public random access resource and the sign indicating number resource at least in frequency domain resource in the dedicated random access resource and the sign indicating number resource; And in frequency domain resource in the dedicated random access resource and the sign indicating number resource one of at least combination greater than one of at least combination in frequency domain resource in the public random access resource and the sign indicating number resource.
Wherein, in the mapping relations of in step S102, setting up, quadrature between a plurality of public random access resource of dedicated random access resource correspondence.In step S104, the public random access resource quadrature of the dedicated random access resource correspondence of calling by predetermined call method.Step S104 comprises: step a, and terminal checked whether the dedicated random access resource that is distributed is expired before initiating access at random; And step b, not having under the expired situation at dedicated random access resource, terminal adopts the dedicated random access resource that is distributed to insert at random; Inserting at random of expired and terminal was N time of after date at random under the situation of access at dedicated random access resource, terminal selects public random access resource to insert at random in the public random access resource set of dedicated random access resource correspondence at random, wherein, N is a positive integer.
Inserting at random of expired and terminal was not N time of after date at random under the situation of access at dedicated random access resource, and terminal selects public random access resource to insert at random in all public random access resources at random, and wherein, N is a positive integer.
By random access resource distributing method according to the present invention, when the dedicated random access resource of distributing to terminal to after date, insert the probability do not finish and to collide need migrate public random access resource the time at random and reduce, thereby improved the efficient that inserts at random.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to random access resource distributing method of the present invention;
Fig. 2 is the flow chart of random access resource distributing method according to an embodiment of the invention;
Fig. 3 is the flow chart of random access resource distributing method in accordance with another embodiment of the present invention; And
Fig. 4 is the flow chart of the random access resource distributing method of another embodiment of the present invention.
Embodiment
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
Fig. 1 is the flow chart according to random access resource distributing method of the present invention.As shown in Figure 1, this method may further comprise the steps:
Step S102, the mapping relations between dedicated random access resource and the public random access resource are set up in the base station.
Step S104, website (terminal) select random access resource to insert at random according to the mapping relations between dedicated random access resource and the public random access resource; Perhaps the base station is selected random access resource and is notified website to insert at random according to mapping relations.
Wherein, in step S102, the base station will comprise that the random access resource division information of mapping relations information is handed down to terminal.Or employing base station and the known random access resource mapping relations of terminal information.
Wherein, in step S104, use at needs under the situation of dedicated random access resource, the base station is the life cycle of terminal distribution dedicated random access resource and dedicated random access resource.
Step S104 comprises: step a, and terminal checked whether the dedicated random access resource that is distributed is expired before initiating access at random; And step b, not having under the expired situation at dedicated random access resource, terminal adopts the dedicated random access resource that is distributed to insert at random; Inserting at random of expired and terminal was N time of after date at random under the situation of access at dedicated random access resource, terminal selects public random access resource to insert at random in the public random access resource set of dedicated random access resource correspondence at random, wherein, N is a positive integer.
Wherein, inserting at random of expired and terminal was not N time of after date at random under the situation of access at dedicated random access resource, and terminal selects public random access resource to insert at random in all public random access resources at random, and wherein, N is a positive integer.
Set up the mapping relations between dedicated random access resource and the public random access resource, comprise random access resource is divided into dedicated random access resource and public random access resource and dedicated random access resource subclass or its set and the subclass of public random access resource or the corresponding relation of its set.Random access resource is: the combination of time-domain resource, frequency domain resource and sign indicating number resource a kind of or three kinds.Mapping comprises two kinds of situations: a kind of or combination of frequency in the dedicated random access resource and sign indicating number resource is smaller or equal to the frequency of public random access resource and a kind of or combination of sign indicating number resource; A kind of or the combination of the frequency of dedicated random access resource and sign indicating number resource is greater than the frequency of public random access resource and a kind of or combination of sign indicating number resource.
Website is according to the mapping relations between dedicated random access resource and the public random access resource, select random access resource to insert at random, refer to: adopt dedicated random access resource to carry out, and adopt public random access resource to carry out based on the access of competing at random based on non-competing access at random.When access way being converted to access at random based on competition, select public random access resource to attempt inserting according to the mapping relations between dedicated random access resource and the public random access resource based on the non-competing website that inserts at random.And guarantee that wherein, N is a positive integer by quadrature between the selected public random access resource of terminal in non-competing the N time random access procedure that inserts at random that transfers competition to.This orthogonal type can be finished when step S102 sets up dedicated random access resource and public random access resource mapping relations, also can be guaranteed by the method for dispatching when step S104 selects random access resource.
Set up the mapping relations between dedicated random access resource and the public random access resource, also comprise, the mapping relations between dedicated random access resource and the public random access resource are known or the broadcast announcement terminal is passed through in the base station.
Described website based on non-competing access at random is converted to access way based on the access of competing at random, refers to: when the access at random that can be converted to based on non-competing access failure at random based on competition continues to attempt access.
Fig. 2 is the flow chart of random access resource distributing method according to an embodiment of the invention.As shown in Figure 2, the method according to this embodiment may further comprise the steps:
Step S202, the division of base station broadcast random access resource inserts signed codevector and the public division of signed codevector and their mapping relations of inserting at random at random comprising special use.For example hypothesis inserts the frequency resource of having only a unit at random, 60 code sources, and 10 of wherein special-purpose code words are code word 1 to 10,50 of public code words are code word 11 to 60.Corresponding 5 the public code words of each special-purpose code word.This step is to have guaranteed the orthogonality of the pairing public random access resource of dedicated random access resource.
Step S204, terminal reads broadcasting, obtains the random access resource division information, and storage.
Step S206, when terminal switched, base station notice terminal was initiated random access procedure, also distributed the life cycle of dedicated signatures sign indicating number and this signed codevector to be used for its initiation random access procedure to terminal simultaneously.
Step S208～S210 after terminal receives the code word of base station assigns, is initiating to check at first whether special-purpose code word is expired before the random access procedure.
Step S212～S214, expired if special-purpose code word does not have, lateral terminal uses special-purpose code word to initiate random access procedure.If special-purpose code word is expired, and be the random access procedure first of after date, then terminal selects code word to initiate random access procedure in the public codeword set that special-purpose code word is shone upon at random.For example the special-purpose code word one of base station assigns is given this terminal, and the pairing public code word of this special use code word is a code word 11 to 15, and terminal just selects to initiate random access procedure at random in code word 11 to 15 so.If special-purpose code word is expired, but be not the random access procedure first of after date, then terminal is in all public code words, and promptly all 50 public code words select code word to initiate random access procedure at random.
Fig. 3 is the flow chart of random access resource distributing method in accordance with another embodiment of the present invention.As shown in Figure 3, the method according to this embodiment may further comprise the steps:
Step S302, the division of base station broadcast random access resource inserts signed codevector and the public division of signed codevector and their mapping relations of inserting at random at random comprising special use.For example hypothesis inserts the frequency resource of having only a unit at random, 60 code sources, and 40 of wherein special-purpose code words are code word 1 to 40,20 of public code words are code word 41 to 60.Corresponding 1 the public code word of per 2 special-purpose code words.In order to have guaranteed the orthogonality of the pairing public random access resource of dedicated random access resource, the identical public code word of corresponding different special-purpose code words is used different time slots when inserting.For example special-purpose code word 1 and 2 all corresponding public code words 41, the special-purpose code word 1 pairing public code word 41 of our regulation can only send on system-frame is the time slot of radix, and special-purpose code word 2 pairing public code words 41 can only send on system-frame is the time slot of even number.This step is to have guaranteed the orthogonality of the pairing public random access resource of dedicated random access resource.
Step S304, terminal reads broadcasting, obtains the random access resource division information, and storage.
Step S306, when terminal switched, base station notice terminal was initiated random access procedure, also distributed the life cycle of dedicated signatures sign indicating number and this signed codevector to be used for its initiation random access procedure to terminal simultaneously.
Step S308～S310 after terminal receives the code word of base station assigns, is initiating to check at first whether special-purpose code word is expired before the random access procedure.
Step S312～S314, expired if special-purpose code word does not have, lateral terminal uses special-purpose code word to initiate random access procedure.If special-purpose code word is expired, and be the random access procedure first of after date, then terminal selects code word to initiate random access procedure in the public codeword set that special-purpose code word is shone upon at random.For example the special-purpose code word one of base station assigns is given this terminal, the pairing public code word of this special use code word is a code word 41, and corresponding system-frame is the time slot of odd number, and terminal is just selected code word 41 and is to select to initiate random access procedure on the time slot of odd number at random in first system-frame next so.If special-purpose code word is expired, but be not the random access procedure first of after date, then terminal is in all public code words, and promptly all 20 public code words select code word to initiate random access procedure at random.
Fig. 4 is the flow chart of the random access resource distributing method of another embodiment according to the present invention.As shown in Figure 4, the method according to this embodiment may further comprise the steps:
Step S402, the division of base station broadcast random access resource inserts signed codevector and the public division of signed codevector and their mapping relations of inserting at random at random comprising special use.For example hypothesis inserts the frequency resource of having only a unit at random, 60 code sources, and 40 of wherein special-purpose code words are code word 1 to 40,20 of public code words are code word 41 to 60.Corresponding 1 the public code word of per 2 special-purpose code words.Because a public code word correspondence a plurality of special-purpose code words, so do not guarantee the orthogonality of the pairing public random access resource of dedicated random access resource in this step.
Step S404, terminal reads broadcasting, obtains the random access resource division information, and storage.
Step S406, when terminal switched, base station notice terminal was initiated random access procedure, also distributed the life cycle of dedicated signatures sign indicating number and this signed codevector to be used for its initiation random access procedure to terminal simultaneously.Because the first step does not guarantee the quadrature of the pairing public random access resource of dedicated random access resource on code word or frequency domain, can on which time slot, send so also need notify terminal to work as when it need use public random access resource in this step base station, thus the orthogonality of the pairing public random access resource of assurance dedicated random access resource.For example special-purpose code word 1 and 2 pairing public code words are code word 41, code word 1 and 2 has been distributed to terminal 1 and 2 simultaneously, and life cycle is identical, and the base station need notify terminal 1 when it need use public code word 41, can only send on system-frame is the time slot of radix.Terminal 2 also need be notified in same base station, when it need use public code word 41, can only send on system-frame is the time slot of even number.If have only code word 1 to be assigned with away, and 2 free time of code word, then the base station can notify the terminal of using code word 1 when it need use public code word 41, can be in office when sends on the crack.
Step S408～S410 after terminal receives the code word of base station assigns, is initiating to check at first whether special-purpose code word is expired before the random access procedure.
Step S412～S414, expired if special-purpose code word does not have, lateral terminal uses special-purpose code word to initiate random access procedure.If special-purpose code word is expired, and be the random access procedure first of after date, then terminal is selected code word at random and initiate random access procedure on the time slot of base station regulation in the public codeword set that special-purpose code word is shone upon.For example the special-purpose code word 1 of base station assigns is given this terminal, the pairing public code word of this special use code word is a code word 41, and this code word of base station notice terminal can only send on system-frame is the time slot of odd number, and terminal is just selected code word 41 and is to select to initiate random access procedure on the time slot of odd number at random in first system-frame next so.If special-purpose code word is expired, but be not the random access procedure first of after date, then terminal is in all public code words, and promptly all 20 public code words select code word to initiate random access procedure at random.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a random access resource distributing method is characterized in that, said method comprising the steps of:
Step S102, the mapping relations between dedicated random access resource and the public random access resource are set up in the base station; And
Step S104, inserting at random, or select described random access resource and be notified to described terminal to insert at random according to described mapping relations by described base station according to described mapping relations Information Selection random access resource for described terminal.
2. random access resource distributing method according to claim 1 is characterized in that, in described step S102, described base station will comprise that the random access resource division information of mapping relations information is handed down to terminal.
3. random access resource distributing method according to claim 1 is characterized in that, in described step S102, adopts described base station and the known random access resource mapping relations of described terminal information.
4. according to claim 2 or 3 described random access resource distributing methods, it is characterized in that, in described step S104, in the needs execution required under the situation of short business turn-on time, described base station is the life cycle of described terminal distribution dedicated random access resource and described dedicated random access resource.
5. random access resource distributing method according to claim 4 is characterized in that, described random access resource is one of at least combination in time-domain resource, frequency domain resource and the sign indicating number resource.
6. random access resource distributing method according to claim 5 is characterized in that, described mapping relations comprise: the corresponding relation between the subclass of the subclass of described dedicated random access resource or set and described public random access resource or the set.
7. random access resource distributing method according to claim 6 is characterized in that, the type of described mapping relations comprises following at least a:
The combination that one of at least combination one of is less than or equal in frequency domain resource in the described public random access resource and the sign indicating number resource at least in frequency domain resource in the described dedicated random access resource and the sign indicating number resource; And
One of at least combination is greater than one of at least combination in frequency domain resource in the described public random access resource and the sign indicating number resource in frequency domain resource in the described dedicated random access resource and the sign indicating number resource.
8. random access resource distributing method according to claim 7 is characterized in that, in the described mapping relations of in described step S102, setting up, and quadrature between a plurality of public random access resource of dedicated random access resource correspondence.
9. random access resource distributing method according to claim 7 is characterized in that, in described step S104, and the public random access resource quadrature of the dedicated random access resource correspondence of calling by predetermined call method.
10. according to Claim 8 or 9 described random access resource distributing methods, it is characterized in that described step S104 comprises:
Step a, described terminal checked whether the dedicated random access resource that is distributed is expired before initiating access at random; And
Step b does not have under the expired situation at described dedicated random access resource, and described terminal adopts the dedicated random access resource that is distributed to insert at random; Inserting at random of expired and described terminal was N time of after date at random under the situation of access at described dedicated random access resource, described terminal selects described public random access resource to insert at random in the public random access resource set of described dedicated random access resource correspondence at random, wherein, N is a positive integer.
11. random access resource distributing method according to claim 10, it is characterized in that, inserting at random of expired and described terminal was not N time of after date at random under the situation of access at described dedicated random access resource, described terminal selects described public random access resource to insert at random in all described public random access resources at random, wherein, N is a positive integer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710151565XA CN101400129B (en) | 2007-09-28 | 2007-09-28 | Random access resource distributing method |
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| CN200710151565XA CN101400129B (en) | 2007-09-28 | 2007-09-28 | Random access resource distributing method |
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| CN101400129A true CN101400129A (en) | 2009-04-01 |
| CN101400129B CN101400129B (en) | 2011-07-13 |
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| CN200710151565XA Expired - Fee Related CN101400129B (en) | 2007-09-28 | 2007-09-28 | Random access resource distributing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848183A (en) * | 2016-03-23 | 2016-08-10 | 北京北方烽火科技有限公司 | Random access channel self-optimization method, device, system and base station |
| WO2018201670A1 (en) * | 2017-05-05 | 2018-11-08 | Qualcomm Incorporated | Ue selection of common and dedicated rach resources |
| WO2019154272A1 (en) * | 2018-02-12 | 2019-08-15 | 电信科学技术研究院有限公司 | Beam failure recovery method and user terminal |
| CN110800338A (en) * | 2017-06-27 | 2020-02-14 | 瑞典爱立信有限公司 | Wireless communication device and method for network control beam based handover in NR |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450308C (en) * | 2006-04-29 | 2009-01-07 | 华为技术有限公司 | Method and system for random access resource allocation in wireless network |
-
2007
- 2007-09-28 CN CN200710151565XA patent/CN101400129B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848183A (en) * | 2016-03-23 | 2016-08-10 | 北京北方烽火科技有限公司 | Random access channel self-optimization method, device, system and base station |
| CN105848183B (en) * | 2016-03-23 | 2019-08-06 | 武汉虹信通信技术有限责任公司 | Random access channel self-organization method, device, system and base station |
| WO2018201670A1 (en) * | 2017-05-05 | 2018-11-08 | Qualcomm Incorporated | Ue selection of common and dedicated rach resources |
| US10638378B2 (en) | 2017-05-05 | 2020-04-28 | Qualcomm Incorporated | UE selection of contention-free and contention-based random access for handover |
| US11382007B2 (en) | 2017-05-05 | 2022-07-05 | Qualcomm Incorporated | UE selection of contention-free and contention-based random access for handover |
| CN110800338A (en) * | 2017-06-27 | 2020-02-14 | 瑞典爱立信有限公司 | Wireless communication device and method for network control beam based handover in NR |
| US11419031B2 (en) | 2017-06-27 | 2022-08-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Wireless communication device and method for network controlled beam based handover in NR |
| US11889372B2 (en) | 2017-06-27 | 2024-01-30 | Telefonaktiebolaget Lm Ericsson (Publ) | Wireless communication device and method for network controlled beam based handover in NR |
| WO2019154272A1 (en) * | 2018-02-12 | 2019-08-15 | 电信科学技术研究院有限公司 | Beam failure recovery method and user terminal |
| US11470670B2 (en) | 2018-02-12 | 2022-10-11 | Datang Mobile Communications Equipment Co., Ltd. | Beam failure recovery method and user equipment |
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| CN101400129B (en) | 2011-07-13 |
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