CN102273310A - Random access method, base station control equipment and base station - Google Patents
Random access method, base station control equipment and base station Download PDFInfo
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- CN102273310A CN102273310A CN2011800007679A CN201180000767A CN102273310A CN 102273310 A CN102273310 A CN 102273310A CN 2011800007679 A CN2011800007679 A CN 2011800007679A CN 201180000767 A CN201180000767 A CN 201180000767A CN 102273310 A CN102273310 A CN 102273310A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H04W48/02—Access restriction performed under specific conditions
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Abstract
The present invention provides a random access method, base station control equipment and a base station, and relates to the field of communication. The method comprises the steps as follows: access subchannels of a RACH (Random Access Channel) are allocated to N cells which are configurated by the base station by the base station control equipment, wherein the N is a positive integer greater than or equal to 2; a PRACH (Physical Random Access Channel) parameter of the each cell in the N cells are configurated, wherein the PRACH parameter comprises the access subchannel corresponding to the each cell in the N cells; and the PRACH parameter of the each cell in the N cells is sent to the base station, thus the base station can determine whether to allow user equipment in the corresponding cell to access according to the PRACH parameter of the each cell. Correspondingly, the base station receives the PRACH parameter sent by the base station control equipment, then determines whether to allow the user equipment in the corresponding cell to perform random access according to the PRACH parameter. The present invention realizes time division multiplexing of the access subchannels among the different cells, and raises numbers of the cells supported by the base station when computing resources of the base station are limited.
Description
Technical field
The present invention relates to the communications field, particularly a kind of accidental access method, base station control device and base station.
Background technology
In wireless network, if need setting up with network, subscriber equipment communicates by letter, then need through random access procedure, set up the uplink synchronous relation with network, request network allocation corresponding channel resources etc.
Existing random access procedure is: base station control device is distributed to a sub-district with the access subchannel of RACH (Random Access Channel, Random Access Channel), and assignment information is sent to the base station.The search of leading (preamle) is carried out in the base station in whole cell range, and carry out operations such as channel estimating, demodulation, decoding, when searching the request of initiating from the subscriber equipment of this sub-district of access at random, judge whether to allow subscriber equipment to insert at random.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
The random access procedure of base station process user equipment needs certain processing resource, and under the resource-constrained situation of the processing of base station, the number of cells that the base station can be supported also is restricted.
Summary of the invention
For under the limited situation of calculation resources, improve the number of cells that the base station can be supported, the embodiment of the invention provides a kind of accidental access method, base station control device and base station.Described technical scheme is as follows:
A kind of method that inserts at random, described method comprises:
Base station control device is distributed to N sub-district of base station configuration with the access subchannel of Random Access Channel RACH, and described N is the positive integer more than or equal to 2;
Described base station control device disposes the Physical Random Access Channel PRACH parameter of each sub-district in the described N sub-district, and described PRACH parameter comprises the pairing access subchannel in each sub-district in the described N sub-district;
The PRACH parameter that sends each sub-district in the described N sub-district makes described base station judge whether to allow the subscriber equipment in the respective cell to insert according to the PRACH parameter of each sub-district to described base station.
A kind of method that inserts at random, described method comprises:
The base station receives the Physical Random Access Channel PRACH parameter that base station control device sends, described base station configuration N sub-district, described N is the positive integer more than or equal to 2, described PRACH parameter comprises the access subchannel of each the pairing Random Access Channel RACH in sub-district in the described N sub-district, wherein, the access subchannel of described Random Access Channel RACH is distributed to N sub-district of described base station configuration by described base station control device, and the PRACH parameter of each sub-district in the described N sub-district is configured by described base station control device;
Described base station judges whether to allow the subscriber equipment in the respective cell to insert at random according to described PRACH parameter.
A kind of base station control device, described base station control device comprises:
Distribution module is used for the access subchannel of Random Access Channel RACH is distributed to N sub-district of base station configuration, and described N is the positive integer more than or equal to 2;
Configuration module is used for disposing the Physical Random Access Channel PRACH parameter of each sub-district of a described N sub-district, and described PRACH parameter comprises the pairing access subchannel in each sub-district in the described N sub-district;
Sending module, the PRACH parameter of each sub-district that is used for sending a described N sub-district makes described base station judge whether to allow the subscriber equipment in the respective cell to insert according to the PRACH parameter of each sub-district to described base station.
A kind of base station, described base station comprises:
Receiver module, be used to receive the Physical Random Access Channel PRACH parameter that base station control device sends, described base station configuration N sub-district, described N is the positive integer more than or equal to 2, described PRACH parameter comprises the access subchannel of each the pairing Random Access Channel RACH in sub-district in the described N sub-district, wherein, the access subchannel of described Random Access Channel RACH is distributed to N sub-district of described base station configuration by described base station control device, and the PRACH parameter of each sub-district in the described N sub-district is configured by described base station control device;
Judge module is used for judging whether to allow the subscriber equipment of respective cell to insert at random according to described PRACH parameter.
The embodiment of the invention is by distributing to a plurality of sub-districts with the access subchannel of Random Access Channel, and allocation result sent to the base station by the PRACH parameter, realized inserting the time division multiplexing of subchannel between different districts, under the limited situation of base station calculation resources, improved the number of cells that the base station can be supported.
Description of drawings
Fig. 1 is the method flow diagram that inserts at random that the embodiment of the invention 1 provides;
Fig. 2 is the other method flow chart that inserts at random that the embodiment of the invention 1 provides;
Fig. 3 is the information interaction figure that inserts at random that the embodiment of the invention 2 provides;
Fig. 4 is the Random Access Channel that provides of the embodiment of the invention 2 and the mapping graph of Physical Random Access Channel;
Fig. 5 is the base station control device structural representation that the embodiment of the invention 3 provides;
Fig. 6 is the architecture of base station schematic diagram that the embodiment of the invention 4 provides.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment 1
Referring to Fig. 1, present embodiment provides a kind of method that inserts at random, and this method can be carried out by base station control device, and this method comprises:
101: base station control device is distributed to N sub-district of base station configuration with the access subchannel of Random Access Channel RACH, and this N is the positive integer more than or equal to 2;
102: this base station control device disposes PRACH (the Physical Random Access Channel of each sub-district in this N sub-district, Physical Random Access Channel) parameter, this PRACH parameter comprise the pairing access subchannel in each sub-district in this N sub-district;
103: the PRACH parameter that sends each sub-district in this N sub-district makes this base station judge whether to allow the subscriber equipment in the respective cell to insert according to the PRACH parameter of each sub-district to this base station.
Present embodiment is by distributing to a plurality of sub-districts with the access subchannel of Random Access Channel, and allocation result sent to the base station by the PRACH parameter, because inserting subchannel is timesharing in Random Access Channel, therefore realized inserting the time division multiplexing of subchannel between different districts, under the limited situation of base station calculation resources, improved the number of cells that the base station can be supported.
Referring to Fig. 2, present embodiment provides a kind of method that inserts at random, and this method can be carried out by the base station, and this method comprises:
201: the base station receives the Physical Random Access Channel PRACH parameter that base station control device sends, this base station configuration N sub-district, this N is the positive integer more than or equal to 2, this PRACH parameter comprises the access subchannel of each the pairing Random Access Channel RACH in sub-district in this N sub-district, wherein, the access subchannel of this Random Access Channel RACH is distributed to N sub-district of this base station configuration by this base station control device, and the PRACH parameter of each sub-district in this N sub-district is configured by this base station control device;
202: the base station judges whether to allow the subscriber equipment in the respective cell to insert at random according to this PRACH parameter.
Present embodiment is by N sub-district of configuration, and the PRACH parameter of reception base station control device transmission, this PRACH parameter comprises the access subchannel of each the pairing RACH in sub-district in this N sub-district, wherein, the access subchannel of RACH is distributed to N sub-district of base station configuration by base station control device, the base station judges whether to allow the subscriber equipment in the respective cell to insert at random according to this PRACH parameter, because inserting subchannel is timesharing in Random Access Channel, therefore realized inserting the time division multiplexing of subchannel between different districts, under the limited situation of base station calculation resources, improved the number of cells that the base station can be supported.
The related random access scheme of the embodiment of the invention is applicable to 3G (3rd-generation, the third generation) or 2G communication systems such as (2nd generation, the second generations).In the 3G communication system, base station control device specifically can be RNC (Radio Network Controller, a radio network controller), and the base station specifically can be NodeB (base station).In the 2G communication system, base station control device specifically can be BSC (Base Station Controller, a base station controller), and the base station specifically can be or BTS (Base Transceiver Station, base transceiver station).
The related sub-district of present embodiment can be common sub-district or/and super sub-district far away, and also, N sub-district is N common sub-district; Or N sub-district is N super sub-district far away; Or N sub-district comprises common sub-district and super sub-district far away simultaneously.Therefore, the scheme that present embodiment provides is applicable to a plurality of common sub-districts, perhaps a plurality of super sub-districts far away, the perhaps mixed cell of being made up of common sub-district and super sub-district far away.Wherein, super sub-district far away can be meant radius of society greater than 30 kilometers sub-district, and common sub-district can be meant that radius of society is less than or equal to 30 kilometers sub-district.The random access procedure of process user equipment as leading search, channel estimating, demodulation, decoding etc., need take the calculation resources of base station.Because super cell coverage area far away is usually much larger than common sub-district, therefore, the base station calculation resources that the base station calculation resources that super sub-district far away takies takies much larger than common sub-district.The calculation resources of base station is relevant with its hardware, if in order to support a plurality of super sub-districts far away, and more with the calculation resources configuration of base station then when common sub-district is handled in the base station, will be caused the serious waste of base station calculation resources.Therefore, in order to realize the balance between business and the cost, often the calculation resources of base station is configured to support a super sub-district far away in the prior art.
The scheme that the embodiment of the invention provides, can be under the limited situation of base station calculation resources, support more sub-district, particularly can support more super sub-district far away, for example, only can support a super sub-district far away, the technical scheme that the embodiment of the invention provides according to the calculation resources of prior art base station, insert subchannel by time-sharing multiplex, make the base station can support a plurality of super sub-districts far away.In addition,, also promptly reduce time-multiplexed granularity, can increase the number of the super sub-district of supporting the base station far away by reducing the pairing access subchannel in each sub-district.
Referring to Fig. 3, present embodiment provides a kind of method that inserts at random, comprising:
301: base station control device is distributed to N sub-district of base station configuration with the access subchannel of Random Access Channel RACH, and this N is the positive integer more than or equal to 2;
Concrete, base station control device can be given N sub-district with all access subchannel mean allocation of Random Access Channel RACH; Perhaps, base station control device can be distributed to N sub-district with all access subchannels of Random Access Channel RACH according to the number of users of each sub-district in N the sub-district.Further, base station control device can also be reserved the access subchannel of predetermined number between each sub-district in N sub-district.If the calculation resources of base station can satisfy at least two sub-districts, also promptly under the abundant situation of the calculation resources of base station, can not reserve the access subchannel, thereby make full use of channel resource, if the calculation resources of base station can only satisfy a sub-district, in order to make the base station have time enough to carry out the handover configurations and the processing of the access subchannel of next sub-district, then can between the sub-district, reserve the access subchannel of some, thereby ensure carrying out smoothly of time-sharing multiplex.
Situation for base station control device is given N sub-district with all access subchannel mean allocation of Random Access Channel RACH has following two kinds of methods at least:
(1) do not reserve the access subchannel between the different districts: the sum that will insert subchannel is divided by number of cells and round, with the result that the rounds quantity as the access subchannel of each sub-district correspondence.Formulate is as follows:
Wherein, N represents the quantity of the access subchannel of sub-district correspondence, and T represents to insert the sum of subchannel, and C represents number of cells,
Expression rounds downwards.
(2) reserve to insert subchannel between the different districts: the sum that will insert subchannel is divided by number of cells and round, and the access subchannel that the result who rounds deducts reservation obtains a difference, with the quantity of difference as the access subchannel of each sub-district correspondence.Formulate is as follows:
Wherein, N represents the quantity of the access subchannel of sub-district correspondence, and T represents to insert the sum of subchannel, and C represents number of cells,
Expression rounds downwards, and Z represents the access subchannel reserved.
Further, for above-mentioned two kinds of methods, under the aliquant situation of T/C, distribute to each sub-district and have remaining access subchannel afterwards, remaining access subchannel can be reserved, and also can distribute to the part sub-district in above-mentioned a plurality of sub-district.
Can be for base station control device according to the number of users of each sub-district in N the sub-district, all of Random Access Channel RACH are inserted the situation that subchannels are distributed to N sub-district, have following two kinds of methods at least:
(1) base station control device is distributed to N sub-district according to the ratio of the number of users of each sub-district in N the sub-district with all access subchannels of Random Access Channel RACH.
(2) base station control device is according to the ratio of the number of users of each sub-district in N the sub-district, and reserves the access subchannel of predetermined number in N sub-district between each sub-district, again all of Random Access Channel RACH inserted subchannels and distributes to N sub-district.
Provide an allocation example that inserts subchannel below.Be provided with 3 sub-districts, Random Access Channel RACH comprises that 12 are inserted subchannel, and each inserts subchannel and takies different time slots.If adopt the scheme of mean allocation, and reserve one between each sub-district and insert subchannel, then each sub-district uses 3 to insert subchannel.Suppose that sub-district 0 use inserts subchannel 0,1,2, represent that with left oblique line sub-district 1 is used and inserted subchannel 4,5,6, represent that with right oblique line sub-district 2 is used and inserted subchannel 8,9,10, represents with point diagram, reserve and insert subchannel 3,7,11, represent with blank box.
Mapping graph referring to Random Access Channel RACH shown in Figure 4 and Physical Random Access Channel PRACH, Physical Random Access Channel PRACH comprises 15 access slots, 2 time slots of each access time slot occupation (slot), each inserts subchannel and takies an access slot.15 access slot 0-14 of the abscissa of mapping graph (x axle) expression, ordinate (y axle) expression Physical Random Access Channel PRACH, the numeral in the square frame inserts Sub-Channel Number.Provided the fragment of 4 Physical Random Access Channel PRACH in the mapping graph, other Physical Random Access Channels PRACH is identical with the mapping relations of this fragment, identical as PRACH4 with the mapping relations of PRACH0, PRACH5 is identical with the mapping relations of PRACH1, PRACH6 is identical with the mapping relations of PRACH2, PRACH7 is identical with the mapping relations of PRACH3, and the PRACH8 mapping relations with PRACH0 again is identical, by that analogy.
302: the Physical Random Access Channel PRACH parameter of each sub-district in N sub-district of base station control device configuration, the PRACH parameter comprises the pairing access subchannel in each sub-district in N the sub-district;
Further, the PRACH parameter can also comprise the sign of each sub-district, and the sign of each sub-district is corresponding with the access subchannel of this sub-district.
303: base station control device sends the PRACH parameter of N each sub-district in the sub-district respectively to the base station;
Wherein, base station control device specifically can be RNC or BSC etc.Concrete, when base station control device is RNC, base station control device can send many Common transport channels respectively and set up request COMMON TRANSPOT CHANNEL SETUPREQUEST to the base station, and the PRACH parameter of a sub-district is carried in every Common transport channel request of setting up.
Needing explanation is that present embodiment does not limit the message of carrying the PRACH parameter, it will be understood by those skilled in the art that for other base station control devices outside the RNC, can adopt other message to carry the PRACH parameter.
304: the base station receives the PRACH parameter that base station control device sends, and returns whether allow to set up the result of Common transport channel to base station control device;
Wherein, the base station specifically can be NodeB or BTS etc.Concrete, when the base station is NodeB, set up if allow, the base station is returned Common transport channel and is set up response COMMON TRANSPOT CHANNEL SETUP RESPONSE to base station control device, if do not allow to set up, the base station is returned Common transport channel and is set up failure COMMON TRANSPOT CHANNEL SETUP FAILURE to base station control device.
Needing explanation is that present embodiment does not limit the message of base station return results, it will be understood by those skilled in the art that for other base stations outside the NodeB, can adopt other message return results.
305: if allow to set up Common transport channel, the base station judges whether to allow the subscriber equipment in the respective cell to insert according to the PRACH parameter of each sub-district.
Concrete, the base station judges that whether access subchannel that subscriber equipment inserts at random meets the access subchannel of the PRACH parameter indication of this sub-district, subscriber equipment place, if meet, allows this subscriber equipment to insert, if do not meet, do not allow this subscriber equipment to insert.
Present embodiment is by distributing to a plurality of sub-districts with the access subchannel of Random Access Channel, and allocation result sent to the base station by the PRACH parameter, because inserting subchannel is timesharing in Random Access Channel, therefore realized inserting the time division multiplexing of subchannel between different districts, under the limited situation of base station calculation resources, improved the number of cells that the base station can be supported.And the pairing access subchannel in each sub-district is few more, also is that time-multiplexed granularity is more little, and the number of cells that the base station can be supported is many more.
Referring to Fig. 5, present embodiment provides a kind of base station control device, comprising:
Distribution module 401 is used for the access subchannel of Random Access Channel RACH is distributed to N sub-district of base station configuration, and this N is the positive integer more than or equal to 2;
Configuration module 402 is used for disposing the Physical Random Access Channel PRACH parameter of each sub-district of this N sub-district, and this PRACH parameter comprises the pairing access subchannel in each sub-district in this N sub-district;
Sending module 403, the PRACH parameter of each sub-district that is used for sending this N sub-district makes this base station judge whether to allow the subscriber equipment in the respective cell to insert according to the PRACH parameter of each sub-district to this base station.
Distribution module 401 comprises first allocation units, and all that are used for Random Access Channel RACH insert the subchannel mean allocation to N sub-district;
Perhaps,
Distribution module 401 comprises second allocation units, is used for the number of users according to each sub-district, N sub-district, and all access subchannels of Random Access Channel RACH are distributed to N sub-district.
Distribution module 401 comprises the reservation unit, is used for reserving between each sub-district, N sub-district the access subchannel of predetermined number.If the calculation resources of base station can satisfy at least two sub-districts, also promptly under the abundant situation of the calculation resources of base station, can not reserve the access subchannel, thereby make full use of channel resource, if the calculation resources of base station can only satisfy a sub-district, in order to make the base station have time enough to carry out the handover configurations and the processing of the access subchannel of next sub-district, then can between the sub-district, reserve the access subchannel of some, thereby ensure carrying out smoothly of time-sharing multiplex.
First allocation units specifically are used for:
With the sum that inserts subchannel divided by number of cells and round, with the result that rounds quantity as the access subchannel of each sub-district correspondence; Formulate is as follows:
Wherein, N represents the quantity of the access subchannel of sub-district correspondence, and T represents to insert the sum of subchannel, and C represents number of cells,
Expression rounds downwards.
Perhaps,
Divided by number of cells and round, the access subchannel that the result who rounds is deducted reservation obtains a difference, with the quantity of difference as the access subchannel of each sub-district correspondence with the sum that inserts subchannel.Formulate is as follows:
Wherein, N represents the quantity of the access subchannel of sub-district correspondence, and T represents to insert the sum of subchannel, and C represents number of cells,
Expression rounds downwards, and Z represents the access subchannel reserved.
Second allocation units specifically are used for:
According to the ratio of the number of users of each sub-district in N the sub-district, all access subchannels of Random Access Channel RACH are distributed to N sub-district.
Sending module 403 specifically is used for:
Send N bar Common transport channel respectively and set up request to the base station, the PRACH parameter of a sub-district is carried in every Common transport channel request of setting up.
The related sub-district of present embodiment can be common sub-district or/and super sub-district far away, and also, N sub-district is N common sub-district; Or N sub-district is N super sub-district far away; Or N sub-district comprises common sub-district and super sub-district far away simultaneously.
Distribution module, configuration module and sending module that present embodiment is related can be distributor, configurator and transmitter.Base station control device that present embodiment is related and method embodiment belong to same design, and the specific implementation process sees method embodiment for details, repeats no more here.
Present embodiment is by distributing to a plurality of sub-districts with the access subchannel of Random Access Channel, and allocation result sent to the base station by the PRACH parameter, because inserting subchannel is timesharing in Random Access Channel, therefore realized inserting the time division multiplexing of subchannel between different districts, under the limited situation of base station calculation resources, improved the number of cells that the base station can be supported.And the pairing access subchannel in each sub-district is few more, also is that time-multiplexed granularity is more little, and the number of cells that the base station can be supported is many more.
Embodiment 4
Referring to Fig. 6, present embodiment provides a kind of base station, comprising:
Receiver module 501, be used to receive the Physical Random Access Channel PRACH parameter that base station control device sends, base station configuration N sub-district, N is the positive integer more than or equal to 2, the PRACH parameter comprises the access subchannel of each the pairing Random Access Channel RACH in sub-district in N the sub-district, wherein, the access subchannel of Random Access Channel RACH is distributed to N sub-district of base station configuration by base station control device, and the PRACH parameter of each sub-district in N sub-district is configured by base station control device;
Judge module 502 is used for judging whether to allow the subscriber equipment of respective cell to insert at random according to this PRACH parameter.
Judge module 502 specifically is used for:
Judge whether access subchannel that subscriber equipment inserts at random meets the access subchannel of the PRACH parameter indication of this sub-district, subscriber equipment place, if meet, allows this subscriber equipment to insert, if do not meet, does not allow this subscriber equipment to insert.
The related sub-district of present embodiment can be common sub-district or/and super sub-district far away, and also, N sub-district is N common sub-district; Or N sub-district is N super sub-district far away; Or N sub-district comprises common sub-district and super sub-district far away simultaneously.
Receiver module that present embodiment is related and judge module can be receiver and determining device.Base station that present embodiment is related and method embodiment belong to same design, and the specific implementation process sees method embodiment for details, repeats no more here.
Present embodiment is by N sub-district of configuration, and the PRACH parameter of reception base station control device transmission, this PRACH parameter comprises the access subchannel of each the pairing RACH in sub-district in this N sub-district, wherein, the access subchannel of RACH is distributed to N sub-district of base station configuration by base station control device, the base station judges whether to allow the subscriber equipment in the respective cell to insert at random according to this PRACH parameter, because inserting subchannel is timesharing in Random Access Channel, therefore realized inserting the time division multiplexing of subchannel between different districts, under the limited situation of base station calculation resources, improved the number of cells that the base station can be supported.And the pairing access subchannel in each sub-district is few more, also is that time-multiplexed granularity is more little, and the number of cells that the base station can be supported is many more.
Provide in the technical scheme in the embodiment of the invention, if be applied in the 3G communication system, base station control device specifically can be RNC (Radio Network Controller, a radio network controller), and the base station specifically can be NodeB (base station).If be applied in the 2G communication system, base station control device specifically can be BSC (Base Station Controller, a base station controller), and the base station specifically can be or BTS (Base Transceiver Station, base transceiver station).
The described method of the embodiment of the invention, device embodiment, reference and quoting mutually.
The all or part of step that one of ordinary skill in the art will appreciate that realization the foregoing description can be finished by hardware, also can instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. method that inserts at random is characterized in that described method comprises:
Base station control device is distributed to N sub-district of base station configuration with the access subchannel of Random Access Channel RACH, and described N is the positive integer more than or equal to 2;
Described base station control device disposes the Physical Random Access Channel PRACH parameter of each sub-district in the described N sub-district, and described PRACH parameter comprises the pairing access subchannel in each sub-district in the described N sub-district;
The PRACH parameter that sends each sub-district in the described N sub-district makes described base station judge whether to allow the subscriber equipment in the respective cell to insert according to the PRACH parameter of each sub-district to described base station.
2. method according to claim 1 is characterized in that, described base station control device is distributed to N sub-district of base station configuration with the access subchannel of Random Access Channel RACH, comprising:
Described base station control device inserts the subchannel mean allocation to a described N sub-district with all of Random Access Channel RACH;
Perhaps,
Described base station control device is distributed to a described N sub-district according to the number of users of each sub-district in the described N sub-district with all access subchannels of Random Access Channel RACH.
3. method according to claim 2 is characterized in that, described base station control device is distributed to N sub-district of base station configuration with the access subchannel of Random Access Channel RACH, also comprises:
Described base station control device is reserved the access subchannel of predetermined number between each sub-district in a described N sub-district.
4. according to claim 2 or 3 described methods, it is characterized in that described base station control device inserts the subchannel mean allocation to a described N sub-district with all of Random Access Channel RACH, comprising:
With the sum that inserts subchannel divided by number of cells and round, with the result that rounds quantity as the access subchannel of each sub-district correspondence;
Perhaps,
Divided by number of cells and round, the access subchannel that the result who rounds is deducted reservation obtains a difference, with the quantity of described difference as the access subchannel of each sub-district correspondence with the sum that inserts subchannel.
5. according to claim 2 or 3 described methods, it is characterized in that described base station control device is distributed to a described N sub-district according to the number of users of each sub-district in the described N sub-district with all access subchannels of Random Access Channel RACH, comprising:
Described base station control device is distributed to a described N sub-district according to the ratio of the number of users of each sub-district in the described N sub-district with all access subchannels of Random Access Channel RACH.
6. according to the described method of the arbitrary claim of claim 1-5, it is characterized in that the PRACH parameter of each sub-district in the described N of the described transmission sub-district comprises to described base station:
Send N bar Common transport channel respectively and set up request to described base station, the PRACH parameter of a sub-district is carried in every Common transport channel request of setting up.
7. according to the described method of the arbitrary claim of claim 1-6, it is characterized in that,
A described N sub-district is N common sub-district; Or,
A described N sub-district is N super sub-district far away; Or,
A described N sub-district comprises common sub-district and super sub-district far away simultaneously.
8. method that inserts at random is characterized in that described method comprises:
The base station receives the Physical Random Access Channel PRACH parameter that base station control device sends, described base station configuration N sub-district, described N is the positive integer more than or equal to 2, described PRACH parameter comprises the access subchannel of each the pairing Random Access Channel RACH in sub-district in the described N sub-district, wherein, the access subchannel of described Random Access Channel RACH is distributed to N sub-district of described base station configuration by described base station control device, and the PRACH parameter of each sub-district in the described N sub-district is configured by described base station control device;
Described base station judges whether to allow the subscriber equipment in the respective cell to insert at random according to described PRACH parameter.
9. method according to claim 8 is characterized in that, describedly judges whether to allow the subscriber equipment in the respective cell to insert at random according to described PRACH parameter, comprising:
Judge whether access subchannel that subscriber equipment inserts at random meets the access subchannel of the PRACH parameter indication of sub-district, described subscriber equipment place, if meet, allow described subscriber equipment to insert,, do not allow described subscriber equipment to insert if do not meet.
10. a base station control device is characterized in that, described base station control device comprises:
Distribution module is used for the access subchannel of Random Access Channel RACH is distributed to N sub-district of base station configuration, and described N is the positive integer more than or equal to 2;
Configuration module is used for disposing the Physical Random Access Channel PRACH parameter of each sub-district of a described N sub-district, and described PRACH parameter comprises the pairing access subchannel in each sub-district in the described N sub-district;
Sending module, the PRACH parameter of each sub-district that is used for sending a described N sub-district makes described base station judge whether to allow the subscriber equipment in the respective cell to insert according to the PRACH parameter of each sub-district to described base station.
11. base station control device according to claim 10 is characterized in that,
Described distribution module comprises first allocation units, and all that are used for Random Access Channel RACH insert the subchannel mean allocation to a described N sub-district;
Perhaps,
Described distribution module comprises second allocation units, is used for the number of users according to described N each sub-district, sub-district, and all access subchannels of Random Access Channel RACH are distributed to a described N sub-district.
12. base station control device according to claim 11 is characterized in that, described distribution module comprises the reservation unit, is used for reserving between each sub-district, a described N sub-district access subchannel of predetermined number.
13., it is characterized in that described first allocation units specifically are used for according to claim 11 or 12 described base station control devices:
With the sum that inserts subchannel divided by number of cells and round, with the result that rounds quantity as the access subchannel of each sub-district correspondence;
Perhaps,
Divided by number of cells and round, the access subchannel that the result who rounds is deducted reservation obtains a difference, with the quantity of described difference as the access subchannel of each sub-district correspondence with the sum that inserts subchannel.
14., it is characterized in that described second allocation units specifically are used for according to claim 11 or 12 described base station control devices:
According to the ratio of the number of users of each sub-district in the described N sub-district, all access subchannels of Random Access Channel RACH are distributed to a described N sub-district.
15., it is characterized in that described sending module specifically is used for according to the described base station control device of the arbitrary claim of claim 10-14:
Send N bar Common transport channel respectively and set up request to described base station, the PRACH parameter of a sub-district is carried in every Common transport channel request of setting up.
16. a base station is characterized in that, described base station comprises:
Receiver module, be used to receive the Physical Random Access Channel PRACH parameter that base station control device sends, described base station configuration N sub-district, described N is the positive integer more than or equal to 2, described PRACH parameter comprises the access subchannel of each the pairing Random Access Channel RACH in sub-district in the described N sub-district, wherein, the access subchannel of described Random Access Channel RACH is distributed to N sub-district of described base station configuration by described base station control device, and the PRACH parameter of each sub-district in the described N sub-district is configured by described base station control device;
Judge module is used for judging whether to allow the subscriber equipment of respective cell to insert at random according to described PRACH parameter.
17. base station according to claim 16 is characterized in that, described judge module specifically is used for:
Judge whether access subchannel that subscriber equipment inserts at random meets the access subchannel of the PRACH parameter indication of sub-district, described subscriber equipment place, if meet, allow described subscriber equipment to insert,, do not allow described subscriber equipment to insert if do not meet.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2011/076285 WO2012103706A1 (en) | 2011-06-24 | 2011-06-24 | Random access method, base station control device and base station |
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| CN110178419B (en) * | 2017-01-26 | 2020-12-01 | 华为技术有限公司 | Terminal device positioning method and network device |
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