CN101815344A - Multi-carrier wave system access method and equipment - Google Patents
Multi-carrier wave system access method and equipment Download PDFInfo
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- CN101815344A CN101815344A CN200910078433A CN200910078433A CN101815344A CN 101815344 A CN101815344 A CN 101815344A CN 200910078433 A CN200910078433 A CN 200910078433A CN 200910078433 A CN200910078433 A CN 200910078433A CN 101815344 A CN101815344 A CN 101815344A
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Abstract
The invention discloses a multi-carrier wave system access method, which comprises the following steps that: user equipment UE remains on member carrier waves of an incompatible LTE system for receiving down information sent by a base station, and the down information comprises a system message broadcasted by the base station; according to the system message broadcasted by the base station, the UE obtains member carrier wave information of an accessible system; and when the UE needs to be accessed into the system, the UE determines the accessed carrier waves according to the member carrier wave information of the accessible system and initiates the random accession. The invention also provides equipment for realizing the multi-carrier wave system access. According to the technical scheme provided by the invention, through reusing the random access flow process of the existing LTE system, the invention solves the random access problem of the UE remained on the member carrier waves of the incompatible LTE system.
Description
Technical field
The present invention relates to moving communicating field, particularly, the present invention relates to a kind of cut-in method and equipment of multicarrier system.
Background technology
Move the developing direction that becomes modern communication technology with the broadband, 3GPP (3rd GenerationPartnership Project, third generation partner program) is devoted to LTE (Long Term Evolution) system, as the evolution of 3G system, the target of research project is that development 3GPP wireless access technology is towards high data rate, the low delay and the evolution of optimization packet data application direction.As the Advanced Edition of LTE system,, will support the system bandwidth wideer, for example the bandwidth of 100MHz than LTE system for the LTE-A system.
Wireless frequency spectrum resource is also referred to as frequency resource, is often referred to long wave, medium wave, shortwave, ultrashort wave and microwave.Refer generally to the general name of the radio frequency of emitting radio wave in the 9KHz-3000GHz frequency range.Radio communication belongs to a kind of in the telecommunications, according to International Telecommunications Union " radio regulation(s) ", telecommunications (telecommunication) is defined as utilizes transmission of Information, emission or the reception for symbol, signal, literal, image, sound or any character of wired electricity, radio, light or other electromagnetic systems.Radio communication is then for using the telecommunications of radio wave.Radio wave is defined as frequency below 3000GHz, manually waveguide and at the electromagnetic wave of spatial transmission.Radio wave as transport vehicle all has certain frequency and wavelength, promptly is arranged in the certain position of radio-frequency spectrum, and occupies certain width.Radio-frequency spectrum (radio spectrum) refers generally to the general name of the radio frequency of emitting radio wave in the 9KHz-3000GHz frequency range.
Radio traffic generally is divided into the professional and space radio business of terrestrial radio, professional main fixed service, mobile service, broadcasting service and the radio determination service of dividing of terrestrial radio.Mobile service is divided into land, waterborne and aeronautical mobile service again.Land mobile service mainly is divided into the professional and public mobile communication business of specialized mobile radio.All radio traffic all be unable to do without radio frequency, radio frequency is a kind of electromagnetic wave that nature exists, being a kind of material, is cannot see of can impartial obtaining of a kind of various countries, impalpable natural resources, and it is a kind of limited, resource with exclusiveness.
The development of present mobile communication, also increasing for the demand of frequency spectrum resource.Because the rare and modern communication technology of frequency spectrum resource is to the pursuit of broadband high-speed rate communication, the two has formed a pair of contradiction.For example, for the LTE-A system of the above-mentioned frequency spectrum of mentioning that needs the 100M bandwidth, under the condition that has the idle frequency spectrum resource, can be the frequency spectrum that directly distributes the 100M bandwidth for this system.Yet, for the rare present mobile communication of frequency spectrum resource, usually be difficult to find wide so blank untapped frequency spectrum resource, in addition, the communication system that has less bandwidth for compatibility is existing, can be by the carrier resource of a plurality of LTE system be joined together to use, the carrier wave of LTE system is called member carrier again, descending carrier f1 as shown in Figure 1, f2, f3 and up-link carrier f1 ', f2 ', by carrier aggregation (Carrier Aggregation) technology, with f1, f2, the resource of f3 joins together to be used for jointly providing descending service to the user, with f1 ', the resource of f2 ' joins together to be used for jointly providing up service to the user, the sub-district that is to say a LTE-A system can comprise a plurality of member carriers, and then is embodied as the user the more communication system of wide bandwidth is provided.Yet, when the sub-district of LTE-A system up-downgoing member carrier number difference, and when the incompatible LTE of part descending carrier system is wherein arranged, example descending carrier f3 as shown in Figure 1, as the UE of LTE-A system (User Equipment, subscriber equipment) reside on this member carrier, so will be owing to there not being corresponding up-link carrier, UE can't initiate to insert at random on this carrier wave.
Therefore, reside in the multicarrier LTE-A system on the member carrier of incompatible LTE system in the sub-district for UE, be necessary to propose the problem that a kind of technical scheme solves the UE access network.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency, particularly solves the access problem of multicarrier system.
For achieving the above object, one aspect of the present invention has proposed a kind of cut-in method of multicarrier system, may further comprise the steps: user equipment (UE) resides on the member carrier of incompatible LTE system, receives the downlink information that the base station sends, and described downlink information comprises the system message of described base station broadcast; According to the system message of described base station broadcast, but described UE obtains the information of the member carrier of connecting system; When described UE needs connecting system, but described UE determines the carrier wave that inserts according to the information of the member carrier of connecting system, initiates to insert at random.
According to embodiments of the invention, but the information of the member carrier of described connecting system comprises following one or more information:
But but but but but but but the member carrier of the Physical Random Access Channel PRACH resource connecting system of the member carrier of the bandwidth connecting system of the member carrier of the frequency connecting system of the member carrier of connecting system insert the random access parameter that pilot frequency sequence Preamble inserts the member carrier of the priority of member carrier of load connecting system of member carrier of pilot frequency sequence sign indicating number connecting system and connecting system at random at random.
According to embodiments of the invention, described system message sends by a newly-increased system information block SIB or sends by the existing SIB of expansion.
According to embodiments of the invention, but described UE determines that according to the information of the member carrier of connecting system the carrier wave that inserts comprises following mode:
But when the member carrier that has a plurality of connecting systems, described UE selects described member carrier to insert at random, and perhaps described UE sorts in proper order to the preferential access of described member carrier, selects the highest described member carrier of priority to insert.
According to embodiments of the invention, described UE sorts in proper order to the preferential access of described member carrier and comprises following mode:
Precedence information is indicated in described system information by described base station, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE compares the random access resource of each available carrier wave, and it is the highest that the described member carrier that random access resource is maximum is defined as priority, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE compares the load of each available carrier wave, and it is the highest that the minimum described member carrier of load is defined as priority, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE takes all factors into consideration laggard row major level ordering with the information on load of the frequency of each available carrier wave, bandwidth, PRACH resource, Preamble sign indicating number, carrier wave, and described UE selects the highest described member carrier of priority to insert.
According to embodiments of the invention, described random access resource comprises following one or more resources: the Preamble sign indicating number resource of the PRACH resource of the bandwidth of described member carrier, described member carrier and described member carrier.
According to embodiments of the invention,, select described member carrier to insert at random from UE described in the described member carrier with limit priority when described UE carries out prioritization and described member carrier when having identical limit priority to described member carrier.
According to embodiments of the invention, described UE selects described member carrier to insert following any one mode that comprises at random: described UE selects an available carrier wave with equally distributed probability distribution from the available carrier wave of determining; The parameter information of each available carrier wave that described UE will determine compares, and determines the access probability at random of each available carrier wave according to comparative result, selects at random according to the described access probability of determining at random.
According to embodiments of the invention, described UE is a parameter information with the bandwidth of available carrier wave, and when the bandwidth of two carrier waves is respectively 10MHz and 20MHz, then the access probability at random of these two carrier waves is respectively 1/3 and 2/3.
The present invention has also proposed a kind of user equipment (UE) on the other hand, comprising:
Receiver module, described receiver module are used to receive the downlink information that the base station sends, and described downlink information comprises the system message of described base station broadcast;
Judge module, described judge module is used to judge whether the up access of needs initiation, when described user equipment (UE) resides on the member carrier of incompatible LTE system and needs to initiate up accesss, but described judge module is by the member carrier of the definite connecting system of system information of described receiver module acquisition;
Sending module, but described sending module is used for initiating up access on the member carrier of the described connecting system that described judge module is determined.
According to embodiments of the invention, described judge module comprises parsing module, but described parsing module is used for the information that the system message of the described base station broadcast of described receiver module reception is obtained the member carrier of connecting system, but the information of the member carrier of described connecting system comprises following one or more information:
But but but but but but but the member carrier of the Physical Random Access Channel PRACH resource connecting system of the member carrier of the bandwidth connecting system of the member carrier of the frequency connecting system of the member carrier of connecting system insert the random access parameter that pilot frequency sequence Preamble inserts the member carrier of the priority of member carrier of load connecting system of member carrier of pilot frequency sequence sign indicating number connecting system and connecting system at random at random.
According to embodiments of the invention, described judge module also comprises the selection module, but described selection module is used for the information according to the member carrier of the described connecting system of described parsing module acquisition, but selects the member carrier of described connecting system to initiate up access by described sending module.
According to embodiments of the invention, but described selection module is according to the information of the member carrier of described connecting system, select the highest carrier wave of described member carrier medium priority to initiate up access, described selection module sorts in proper order to the preferential access of described member carrier and comprises following mode:
Precedence information is indicated in described system information by described base station, the highest described member carrier of described selection module records priority; Perhaps
Described selection module compares the random access resource of each available carrier wave, and it is the highest that the described member carrier that described selection module is maximum with random access resource is defined as priority; Perhaps
Described UE compares the load of each available carrier wave, and it is the highest that the minimum described member carrier of load is defined as priority, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE takes all factors into consideration laggard row major level ordering with the information on load of the frequency of each available carrier wave, bandwidth, PRACH resource, Preamble sign indicating number, carrier wave, and described UE selects the highest described member carrier of priority to insert.
According to embodiments of the invention, described random access resource comprises following one or more resources: the Preamble sign indicating number resource of the PRACH resource of the bandwidth of described member carrier, described member carrier and described member carrier.
The technical scheme that proposes according to the present invention, both can allow UE to reside on the member carrier of incompatible LTE system in the sub-district, improved under the situation of the availability of frequency spectrum and systematic function, by increasing corresponding system message, reuse the access process at random of existing LTE system, reduce the UE that resides in incompatible LTE system in the sub-district and realized the complexity that inserts at random, solved the access problem at random of UE.In addition, system can also be in the system information of the member carrier of incompatible LTE system specific the inserted member carrier information of broadcasting so that realize member carrier is inserted the balanced and control of load, optimization system performance.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the asymmetric schematic diagram of the carrier wave of multicarrier system;
Fig. 2 is the flow chart of the cut-in method of realization multicarrier system;
Fig. 3 is the structural representation of the UE of the cut-in method of realization multicarrier system.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
The present invention proposes a kind of cut-in method of multicarrier system, may further comprise the steps: user equipment (UE) resides on the member carrier of incompatible LTE system, receives the downlink information that the base station sends, and described downlink information comprises the system message of described base station broadcast; According to the system message of described base station broadcast, but described UE obtains the information of the member carrier of connecting system; When described UE needs connecting system, but described UE determines the carrier wave that inserts according to the information of the member carrier of connecting system, initiates to insert at random.
As shown in Figure 2, be the flow chart of the cut-in method of realizing multicarrier system, this method may further comprise the steps:
S101:UE resides on the member carrier of incompatible LTE system.
During situation about in occurring, introducing as background technology, in order to provide the more communication system of wide bandwidth to the user, the LTE-A system can adopt carrier aggregation (Carrier Aggregation) technology, therefore, the sub-district of a LTE-A system can comprise a plurality of member carriers, for example, as shown in Figure 1, comprise descending carrier f1, f2, f3 and up-link carrier f1 ', f2 ', wherein, descending carrier f1, f2 and up-link carrier f1 ', f2 ' are the member carrier of compatible LTE system.When the member carrier f3 that resides in incompatible LTE system as UE goes up, the technical scheme that proposes according to the present invention, UE can initiate uplink random and insert.
S102:UE receives the system message of base station broadcast, but wherein system message comprises the information of the member carrier of other connecting systems.
When UE was resident in system, no matter UE resided on descending carrier f1, f2 or the f3, all can receive the system message of base station broadcast.When UE reside in descending carrier f1, when f2 is last, the broadcast of system can be continued to use prior LTE system message; When UE resides on the f3, because this carrier wave is the member carrier of incompatible LTE system, do not need to broadcast information relevant on this frequency in the system information of its transmission with access, PRACH (Physical Random AccessChannel for example, Physical Random Access Channel) resource information is so that the signaling traffic load that reduces to eat dishes without rice or wine.The technical scheme that proposes according to the present invention, the information of other member carriers that can insert will be broadcasted in the base station on carrier wave f3, so that UE can select other carrier waves to insert, for example insert by up-link carrier f1 ' or f2 ' initiation.
The system message that UE broadcasts on f3 according to the base station, but the information of the member carrier of other connecting systems obtained.Wherein, but the information of the member carrier of connecting system comprises following one or more information:
But but but but but but but the member carrier of the Physical Random Access Channel PRACH resource connecting system of the member carrier of the bandwidth connecting system of the member carrier of the frequency connecting system of the member carrier of connecting system insert the defined relevant access information of systems such as random access parameter that pilot frequency sequence Preamble inserts the member carrier of the priority of member carrier of load connecting system of member carrier of pilot frequency sequence sign indicating number connecting system and connecting system at random at random.
In addition, system can define new SIB (System Information Block, system information block) and send above-mentioned information, but also can be by expanding the information that existing SIB sends the member carrier of above-mentioned connecting system.
But the information of the member carrier of the connecting system that S103:UE reads from system information is determined access carrier, initiates to insert at random.
As shown in Figure 2, when UE need initiate to insert at random, for example be that UE has uplink service need send to the base station, or the order of receiving the base station will initiate uplink random and insert when needing feedback information, otherwise UE continue the resident state that keeps original.
When need initiating uplink random, UE inserts, but the information of the member carrier of other connecting systems that obtained by step S102, and UE will select suitable up-link carrier to initiate access at random.
But UE determines that according to the information of the member carrier of connecting system the carrier wave that inserts comprises following mode:
When but UE finds only to have the member carrier of a connecting system, will on this carrier wave, initiate to insert;
But when the member carrier that has a plurality of connecting systems, UE selects member carrier to initiate to insert at random, wherein, when adopting the mode of selecting at random, UE can be according to random probability distribution, for example evenly distribute or other probability distribution, from the available carrier wave of determining, select an available carrier wave by probability distribution, perhaps the parameter information of each available carrier wave that will determine of UE compares, determine the access probability at random of each available carrier wave according to comparative result, and select at random according to the access probability of determining at random, again for example, the parameter information of available carrier wave is a bandwidth, and the bandwidth of two carrier waves is respectively 10MHz and 20MHz, and then the access probability at random of these two carrier waves is respectively 1/3 and 2/3; Perhaps
UE sorts in proper order to the preferential access of all member carriers, selects the highest described member carrier of priority to insert.
As embodiments of the invention, UE sorts in proper order to the preferential access of member carrier and comprises following mode:
Precedence information sends indication information to terminal by the base station in system information, UE selects the highest member carrier of priority to insert; Perhaps
UE compares the random access resource of each available carrier wave, it is the highest that the member carrier that random access resource is maximum is defined as priority, UE selects the highest described member carrier of priority to insert, wherein random access resource comprise following one or more: the Preamble sign indicating number resource of the PRACH resource of the bandwidth of described member carrier, described member carrier and described member carrier; Perhaps
UE compares the load of each available carrier wave, and it is the highest that the minimum described member carrier of load is defined as priority, and UE selects the highest described member carrier of priority to insert.
In addition, can also be by after the load of the frequency that can insert member carrier, bandwidth, PRACH resource, Preamble sign indicating number, carrier wave, other carrier wave being inserted at random informixs such as relevant parameter and considering, obtain numerical priority value by concrete priority algorithm, concrete priority algorithm for example is to give different priority weighted values to different information to add up, and then definite priority.
In addition, when UE carries out prioritization to member carrier, when a plurality of member carriers of appearance have identical limit priority, UE will select carrier wave to insert by the method for selecting member carrier to insert at random of above-mentioned introduction from a plurality of member carriers with limit priority at random.
Obviously, above-mentioned said method is not limited to the mode that above-mentioned definite carrier wave inserts for example only for said method is set forth explanation, anyly can determine that the mode of carrier wave access probability all is suitable for said method by the parameter information of available carrier wave.
After UE determined corresponding access carrier, for example this carrier wave was up-link carrier f1 ' or f2 ' shown in Figure 2, initiated to insert at random according to the access process of existing LTE system definition.
The said method that proposes according to the present invention, both can allow UE to reside on the member carrier of incompatible LTE system in the sub-district, improved under the situation of the availability of frequency spectrum and systematic function, by increasing corresponding system message, reuse the access process at random of existing LTE system, reduce the UE that resides in incompatible LTE system in the sub-district and realized the complexity that inserts at random, solved the access problem at random of UE.In addition, system can also be in the system information of the member carrier of incompatible LTE system specific the inserted member carrier information of broadcasting so that realize member carrier is inserted the balanced and control of load, optimization system performance.
The invention allows for a kind of terminal that realizes the cut-in method of multicarrier system, as shown in Figure 3, be the structural representation of the UE300 of the cut-in method of realizing multicarrier system.
User equipment (UE) 300 comprises receiver module 310, judge module 320 and sending module 330.
Wherein, receiver module 310 is used to receive the downlink information that the base station sends, and downlink information comprises the system message of base station broadcast; Judge module 320 is used to judge whether the up access of needs initiation, when user equipment (UE) 300 resides on the member carrier of incompatible LTE system and needs to initiate up accesss, but the member carrier of the definite connecting system of system information that judge module 320 obtains by receiver module 310; But sending module 330 is used for initiating up access on the member carrier of the connecting system that judge module 320 is determined.
As embodiments of the invention, judge module 320 also comprises parsing module 321, but parsing module 321 is used for the information that the system message of the base station broadcast of receiver module 310 receptions is obtained the member carrier of connecting system, but the information of the member carrier of connecting system comprises following one or more information:
But but but but but but but the member carrier of the Physical Random Access Channel PRACH resource connecting system of the member carrier of the bandwidth connecting system of the member carrier of the frequency connecting system of the member carrier of connecting system insert the random access parameter that pilot frequency sequence Preamble inserts the member carrier of the priority of member carrier of load connecting system of member carrier of pilot frequency sequence sign indicating number connecting system and connecting system at random at random.
As embodiments of the invention, judge module 320 also comprises selects module 322, but selection module 322 is used for the information according to the member carrier of the connecting system of parsing module 321 acquisitions, but selects the member carrier of connecting system to initiate up access by sending module 330.
As embodiments of the invention, but select the information of module 322 according to the member carrier of connecting system, select the highest carrier wave of member carrier medium priority to initiate up access, the preferential access of 322 pairs of member carriers of selection module is sorted in proper order and is comprised following mode:
Precedence information is indicated in system information by the base station, selects the highest member carrier of module 322 record priority; Perhaps
Select module 322 that the random access resource of each available carrier wave is compared, it is the highest to select module 322 member carrier that random access resource is maximum to be defined as priority; Perhaps
UE300 compares the load of each available carrier wave, and it is the highest that the minimum member carrier of load is defined as priority, and UE300 selects the highest member carrier of priority to insert; Perhaps
UE300 takes all factors into consideration laggard row major level ordering with the information on load of the frequency of each available carrier wave, bandwidth, PRACH resource, Preamble sign indicating number, carrier wave, and UE300 selects the highest described member carrier of priority to insert.
In addition, but when the member carrier that has a plurality of connecting systems, UE300 can also initiate insert by selecting member carrier at random.UE300 can be according to random probability distribution, for example evenly distribute or other probability distribution, from the available carrier wave of determining, select an available carrier wave by probability distribution, perhaps the parameter information of each available carrier wave that will determine of UE compares, determine the access probability at random of each available carrier wave according to comparative result, and select at random according to the access probability of determining at random, again for example, the parameter information of available carrier wave is a bandwidth, the bandwidth of two carrier waves is respectively 10MHz and 20MHz, and then the access probability at random of these two carrier waves is respectively 1/3 and 2/3
Obviously, above-mentioned the said equipment is not limited to the mode that above-mentioned definite carrier wave inserts for example only for the said equipment is set forth explanation, anyly can determine that the mode of carrier wave access probability all is suitable for the said equipment by the parameter information of available carrier wave.
As embodiments of the invention, random access resource comprises following one or more resources: the Preamble sign indicating number resource of the PRACH resource of the bandwidth of member carrier, member carrier and member carrier.
The said equipment that proposes according to the present invention, both can allow UE300 to reside on the member carrier of incompatible LTE system in the sub-district, improved under the situation of the availability of frequency spectrum and systematic function, by increasing corresponding system message, reuse the access process at random of existing LTE system, reduce the UE300 that resides in incompatible LTE system in the sub-district and realized the complexity that inserts at random, solved the access problem at random of UE300.In addition, system can also be in the system information of the member carrier of incompatible LTE system specific the inserted member carrier information of broadcasting so that realize member carrier is inserted the balanced and control of load, optimization system performance.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. the cut-in method of a multicarrier system is characterized in that, may further comprise the steps:
User equipment (UE) resides on the member carrier of incompatible LTE system, receives the downlink information that the base station sends, and described downlink information comprises the system message of described base station broadcast;
According to the system message of described base station broadcast, but described UE obtains the information of the member carrier of connecting system;
When described UE needs connecting system, but described UE determines the carrier wave that inserts according to the information of the member carrier of connecting system, initiates to insert at random.
2. the cut-in method of multicarrier system as claimed in claim 1 is characterized in that, but the information of the member carrier of described connecting system comprises following one or more information:
But but but but but but but the member carrier of the Physical Random Access Channel PRACH resource connecting system of the member carrier of the bandwidth connecting system of the member carrier of the frequency connecting system of the member carrier of connecting system insert the random access parameter that pilot frequency sequence Preamble inserts the member carrier of the priority of member carrier of load connecting system of member carrier of pilot frequency sequence sign indicating number connecting system and connecting system at random at random.
3. the cut-in method of multicarrier system as claimed in claim 1 is characterized in that, described system message sends by a newly-increased system information block SIB or sends by the existing SIB of expansion.
4. the cut-in method of multicarrier system as claimed in claim 1 is characterized in that, but described UE determines that according to the information of the member carrier of connecting system the carrier wave that inserts comprises following mode:
But when the member carrier that has a plurality of connecting systems, described UE selects described member carrier to insert at random, and perhaps described UE sorts in proper order to the preferential access of described member carrier, selects the highest described member carrier of priority to insert.
5. the cut-in method of multicarrier system as claimed in claim 4 is characterized in that, described UE sorts in proper order to the preferential access of described member carrier and comprises following mode:
Precedence information is indicated in described system information by described base station, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE compares the random access resource of each available carrier wave, and it is the highest that the described member carrier that random access resource is maximum is defined as priority, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE compares the load of each available carrier wave, and it is the highest that the minimum described member carrier of load is defined as priority, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE takes all factors into consideration laggard row major level ordering with the information on load of the frequency of each available carrier wave, bandwidth, PRACH resource, Preamble sign indicating number, carrier wave, and described UE selects the highest described member carrier of priority to insert.
6. the cut-in method of multicarrier system as claimed in claim 5, it is characterized in that described random access resource comprises following one or more resources: the Preamble sign indicating number resource of the PRACH resource of the bandwidth of described member carrier, described member carrier and described member carrier.
7. the cut-in method of multicarrier system as claimed in claim 4, it is characterized in that, when described UE carries out prioritization and described member carrier when having identical limit priority to described member carrier, select described member carrier to insert at random from UE described in the described member carrier with limit priority.
8. as the cut-in method of one of claim 4 or 7 described multicarrier system, it is characterized in that described UE selects described member carrier to insert following any one mode that comprises at random:
Described UE selects an available carrier wave with equally distributed probability distribution from the available carrier wave of determining;
The parameter information of each available carrier wave that described UE will determine compares, and determines the access probability at random of each available carrier wave according to comparative result, selects at random according to the described access probability of determining at random.
9. a user equipment (UE) is characterized in that, comprising:
Receiver module, described receiver module are used to receive the downlink information that the base station sends, and described downlink information comprises the system message of described base station broadcast;
Judge module, described judge module is used to judge whether the up access of needs initiation, when described user equipment (UE) resides on the member carrier of incompatible LTE system and needs to initiate up accesss, but described judge module is by the member carrier of the definite connecting system of system information of described receiver module acquisition;
Sending module, but described sending module is used for initiating up access on the member carrier of the described connecting system that described judge module is determined.
10. user equipment (UE) as claimed in claim 9, it is characterized in that, described judge module comprises parsing module, but described parsing module is used for the information that the system message of the described base station broadcast of described receiver module reception is obtained the member carrier of connecting system, but the information of the member carrier of described connecting system comprises following one or more information:
But but but but but but but the member carrier of the Physical Random Access Channel PRACH resource connecting system of the member carrier of the bandwidth connecting system of the member carrier of the frequency connecting system of the member carrier of connecting system insert the random access parameter that pilot frequency sequence Preamble inserts the member carrier of the priority of member carrier of load connecting system of member carrier of pilot frequency sequence sign indicating number connecting system and connecting system at random at random.
11. user equipment (UE) as claimed in claim 9, it is characterized in that, described judge module also comprises the selection module, but described selection module is used for the information according to the member carrier of the described connecting system of described parsing module acquisition, but selects the member carrier of described connecting system to initiate up access by described sending module.
12. user equipment (UE) as claimed in claim 11, it is characterized in that, but described selection module is according to the information of the member carrier of described connecting system, select the highest carrier wave of described member carrier medium priority to initiate up access, described selection module sorts in proper order to the preferential access of described member carrier and comprises following mode:
Precedence information is indicated in described system information by described base station, the highest described member carrier of described selection module records priority; Perhaps
Described selection module compares the random access resource of each available carrier wave, and it is the highest that the described member carrier that described selection module is maximum with random access resource is defined as priority; Perhaps
Described UE compares the load of each available carrier wave, and it is the highest that the minimum described member carrier of load is defined as priority, and described UE selects the highest described member carrier of priority to insert; Perhaps
Described UE takes all factors into consideration laggard row major level ordering with the information on load of the frequency of each available carrier wave, bandwidth, PRACH resource, Preamble sign indicating number, carrier wave, and described UE selects the highest described member carrier of priority to insert.
13. user equipment (UE) as claimed in claim 12, it is characterized in that described random access resource comprises following one or more resources: the Preamble sign indicating number resource of the PRACH resource of the bandwidth of described member carrier, described member carrier and described member carrier.
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| CN200910078433A CN101815344A (en) | 2009-02-20 | 2009-02-20 | Multi-carrier wave system access method and equipment |
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| CN200910078433A CN101815344A (en) | 2009-02-20 | 2009-02-20 | Multi-carrier wave system access method and equipment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107302761A (en) * | 2016-04-14 | 2017-10-27 | 中国移动通信有限公司研究院 | A kind of terminal access controlling method and device |
| WO2018045576A1 (en) * | 2016-09-09 | 2018-03-15 | 华为技术有限公司 | Communication method, user equipment and network device thereof |
| CN108293218A (en) * | 2015-12-01 | 2018-07-17 | 华为技术有限公司 | Information transferring method, base station and communication system |
| US10492198B2 (en) | 2016-01-12 | 2019-11-26 | Zte Corporation | Uplink access method, device, and terminal, and base station |
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| CN113557786A (en) * | 2019-03-18 | 2021-10-26 | 高通股份有限公司 | Priority handling for random access messages including preamble and payload |
| WO2023005946A1 (en) * | 2021-07-30 | 2023-02-02 | 北京紫光展锐通信技术有限公司 | Access method and apparatus, and access control method and apparatus |
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| WO2011050671A1 (en) * | 2009-10-28 | 2011-05-05 | 中兴通讯股份有限公司 | Component carrier configuration method in carrier aggregation and device thereof |
| WO2012072037A1 (en) * | 2010-12-02 | 2012-06-07 | 大唐移动通信设备有限公司 | Method and device for random access |
| US8934467B2 (en) | 2010-12-02 | 2015-01-13 | Datang Mobile Communications Equipment Co., Ltd. | Random access method and apparatus |
| CN102036411A (en) * | 2010-12-02 | 2011-04-27 | 大唐移动通信设备有限公司 | Method and device for random access |
| CN103124416A (en) * | 2012-01-12 | 2013-05-29 | 美商威睿电通公司 | Communication transmission method and system |
| CN103874165B (en) * | 2012-12-17 | 2017-11-14 | 电信科学技术研究院 | A kind of business access method and device applied to LTE A systems |
| CN103874165A (en) * | 2012-12-17 | 2014-06-18 | 电信科学技术研究院 | Method and device for service accessing in LTE-A system |
| CN108293218B (en) * | 2015-12-01 | 2020-07-07 | 华为技术有限公司 | Information transmission method, base station and communication system |
| CN108293218A (en) * | 2015-12-01 | 2018-07-17 | 华为技术有限公司 | Information transferring method, base station and communication system |
| US10492198B2 (en) | 2016-01-12 | 2019-11-26 | Zte Corporation | Uplink access method, device, and terminal, and base station |
| CN107302761A (en) * | 2016-04-14 | 2017-10-27 | 中国移动通信有限公司研究院 | A kind of terminal access controlling method and device |
| WO2018045576A1 (en) * | 2016-09-09 | 2018-03-15 | 华为技术有限公司 | Communication method, user equipment and network device thereof |
| CN109691215A (en) * | 2016-09-09 | 2019-04-26 | 华为技术有限公司 | Communication means and its user equipment, the network equipment |
| CN109691215B (en) * | 2016-09-09 | 2020-10-27 | 华为技术有限公司 | Communication method, user equipment and network equipment thereof |
| US10939410B2 (en) | 2016-09-09 | 2021-03-02 | Huawei Technologies Co., Ltd. | Communication method, user equipment, and network device |
| CN111432502A (en) * | 2019-01-09 | 2020-07-17 | 成都鼎桥通信技术有限公司 | Random access method, base station and terminal equipment |
| CN113557786A (en) * | 2019-03-18 | 2021-10-26 | 高通股份有限公司 | Priority handling for random access messages including preamble and payload |
| WO2023005946A1 (en) * | 2021-07-30 | 2023-02-02 | 北京紫光展锐通信技术有限公司 | Access method and apparatus, and access control method and apparatus |
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