CN101754380B - Resource control method, system, base and terminal in carrier polymerization system - Google Patents
Resource control method, system, base and terminal in carrier polymerization system Download PDFInfo
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- CN101754380B CN101754380B CN2008102398662A CN200810239866A CN101754380B CN 101754380 B CN101754380 B CN 101754380B CN 2008102398662 A CN2008102398662 A CN 2008102398662A CN 200810239866 A CN200810239866 A CN 200810239866A CN 101754380 B CN101754380 B CN 101754380B
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Abstract
The invention discloses a resource control method, system, base and terminal in carrier polymerization system. The embodiment of the resource control method in carrier polymerization system includes: the base designates a main carrier needing the terminal monitoring for a terminal under a non-business data transmission state in an LTE-A system; the base determines the carrier transmission configuration of the business data after receiving a business data transmission request and indicates the terminal to monitor resource control information on the configured transmission carrier; the base determines the transmission configuration of the main carrier after completing the business data transmission with the terminal, and indicates the terminal to monitor the resource control information on the configured main transmission carrier. The invention can be used to realize flexible control on resources in carrier polymerization system.
Description
Technical field
The present invention relates to wireless communication technology field, resource control method, system, base station and terminal in particularly a kind of carrier aggregation system.
Background technology
Carrier aggregation system is a kind of system that a plurality of carrier resource polymerizations (or claiming to connect) are got up to use.As just at developing enhancing Long Term Evolution (Long Term Evolution Advanced; LTE-A) system; It is in order to support the system bandwidth wideer than LTE system, for example in order to support the bandwidth of 100MHz, the resource of a plurality of LTE carrier waves (or claiming member carrier) is coupled together use.Can bind the whole bandwidth of these carrier waves, distribute to a user or give a plurality of users as system.When giving a user, higher peak rate can be provided.
Among the LTE-A, concrete, can be that a plurality of continuous LTE carrier waves are carried out polymerization, as shown in Figure 1, perhaps, also can be that a plurality of discontinuous LTE carrier waves are carried out polymerization, as shown in Figure 2.Dual mode can provide bigger transmission bandwidth.
In the carrier aggregation system, how to realize carrier resource control flexibly, also do not have such scheme at present.
Summary of the invention
The purpose of the embodiment of the invention provides resource control method, system, base station and the terminal in a kind of carrier aggregation system, to realize controlling flexibly carrier resource.
For solving the problems of the technologies described above, the embodiment of the invention provides resource control method, system, base station and the terminal in a kind of carrier aggregation system to be achieved in that
Resource control method in a kind of carrier aggregation system comprises:
The base station is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system;
After the base station receives the business data transmission request, confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration;
After the business data transmission at base station completion and terminal, confirm the main carrier transmission configuration, and indicate said terminal monitor resource control information on the transmission main carrier of configuration.
Resource control method in a kind of carrier aggregation system comprises:
When the terminal is in non-business data transmission state, monitor the main carrier of acquiescence or appointment;
The terminal is in the process of business data transmission state by non-business data transmission state exchange, receives the transmission carrier wave configuration indication send, and on the carrier wave of configuration monitor resource control information;
After terminal completion and the service in base station transfer of data, monitor resource control information on main carrier.
Resource control system in a kind of carrier aggregation system comprises:
The base station is used to the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring; After receiving the business data transmission request, confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration; After the business data transmission at completion and terminal, confirm the main carrier transmission configuration, and indicate said terminal monitor resource control information on the transmission main carrier of configuration.
The main carrier of acquiescence or appointment when being in non-business data transmission state, is monitored in the terminal; By non-business data transmission state exchange is in the process of business data transmission state, receives the transmission carrier wave configuration indication send, and on the carrier wave of configuration monitor resource control information; Accomplish with the service in base station transfer of data after, the indication of monitor resource control information on the transmission main carrier of configuration that receives that the base station sends, and according to this indication monitor resource control information on main carrier.
A kind of base station comprises:
Designating unit is used to the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring;
The unit is confirmed in the carrier transmission configuration, is used for confirming the carrier transmission configuration of business datum;
First indicating member, be used to receive the business data transmission request after, carrier transmission configuration is confirmed the terminal is given in the carrier transmission configuration indication of the business datum that the unit is confirmed;
The main carrier transmission configuration is confirmed the unit, is used for confirming the main carrier transmission configuration;
Second indicating member after being used for the base station and accomplishing the business data transmission with the terminal, confirms that with the main carrier transmission configuration main carrier transmission configuration that the unit is confirmed indicates to said terminal.
A kind of terminal comprises:
The indication receiving element is used for the process that the terminal is the business data transmission state by non-business data transmission state exchange, receives the transmission carrier wave configuration indication of sending;
Monitoring unit when being used for being at the terminal non-business data transmission state, is monitored the main carrier of acquiescence or appointment; Is in the process of business data transmission state at the terminal by non-business data transmission state exchange, according to the transmission carrier wave configuration indication that receiving element receives, monitor resource control information on the carrier wave of configuration; After terminal completion and service in base station transfer of data, monitor resource control information on main carrier.
Technical scheme by the above embodiment of the invention provides is visible, and is visible by the foregoing description, and the base station is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system; After the base station receives the business data transmission request, confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration; After the business data transmission at base station completion and terminal, confirm the main carrier transmission configuration, and indicate said terminal monitor resource control information on the transmission main carrier of configuration; Such mode; Can realize in the carrier aggregation system flexibility to resource control, and, power consumption of terminal reduced; And do not need the terminal always on the PDCCH of a plurality of carrier waves, to monitor control messages; Moreover, in the business data transmission state, utilize a plurality of carrier wave parallel transmissions, can utilize the big bandwidth of system to bring frequency diversity gain.
Description of drawings
Fig. 1 carries out the polymerization sketch map for a plurality of continuous LTE carrier waves in the prior art;
Fig. 2 carries out the polymerization sketch map for a plurality of discontinuous LTE carrier waves in the prior art
Fig. 3 is the present invention program one a principle schematic;
Fig. 4 is the present invention program two a principle schematic;
Fig. 5 is the present invention program three a principle schematic;
Fig. 6 is the present invention program four a principle schematic;
Fig. 7 is the flow chart of the embodiment that angle is described from the base station of the resource control method in the carrier aggregation system of the present invention;
Fig. 8 is the flow chart of the embodiment that angle is described from the terminal of the resource control method in the carrier aggregation system of the present invention;
Fig. 9 is the principle schematic of the specific embodiment of resource control method of the present invention;
Figure 10 is the block diagram of base station embodiment of the present invention;
Figure 11 is the block diagram of terminal embodiment of the present invention.
Embodiment
The embodiment of the invention provides resource control method, system, base station and the terminal in a kind of carrier aggregation system.
In order to make those skilled in the art person understand the present invention program better, the embodiment of the invention is done further to specify below in conjunction with accompanying drawing and execution mode.
One skilled in the art will appreciate that the LTE system is in the LTE-A system, adopt Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) scheduling carrier wave resources.To the design of PDCCH scheduling carrier wave resources in the carrier aggregation system, following several kinds of schemes can be arranged:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
The principle of this scheme can be like exemplary the showing of Fig. 3.The all independent PDCCH that sends in the subframe of carrier wave 1, carrier wave 2 and carrier wave 3, PDCCH occupy the whole bandwidth of carrier wave before control information transmission on several OFDM symbols, concrete according to various situation, for example can take 1-4 symbol respectively.PDCCH is used for controlling the physical resource of place carrier wave.
Based on dynamic dispatching, PDCCH can control the physical resource of place in the subframe, as Physical Downlink Shared Channel (Physical Downlink Sharing Channel, PDSCH).PDSCH is included in the physical resource that is used to transmit data on the resource that does not comprise control information, is used for service data transmission, is positioned at the downlink data zone, takies certain bandwidth.
Arrow among the figure shows the control relation of PDCCH for PDSCH, and is visible from figure, the PDSCH in the set of PDCCH scheduling designated carrier in same carrier wave and the same subframe.
This scheme has following advantage:
1) reused the design of LTE Release8 version to greatest extent, need not define extra PDCCH structure and signaling format, agreement is changed little;
2) support each carrier wave independent link self adaptation flexibly;
3) if (PDCCH on other carrier waves is unaffected for User Equipment, the UE) PDCCH on a certain carrier wave of omission or false retrieval for subscriber equipment;
4) PDSCH of PDCCH and its scheduling can appear at same subframe, because there is not the problem that need lock other frequencies again.
The inferior position of this scheme is:
1) UE need monitor PDCCH on a plurality of carrier waves, and power consumption is big;
2) UE need be respectively according to way parallel many PDCCH of blind check on a plurality of carrier waves of LTE R8, and the blind check complexity is directly proportional with the carrier wave number and increases relation;
3) (when many PDCCH were parallel, the CRC expense was bigger for Cyclical RedundancyCheck, CRC) (way according to LTE R8 is the CRC check position that adds 16bits) because every PDCCH has added the CRC position.
Scheme two: on a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set.
The principle of this scheme can be like exemplary the showing of Fig. 4.In Fig. 4, the PDCCH of resource is carried on the carrier wave 2 on scheduling carrier wave 1, carrier wave 2 and the carrier wave 3 respectively, and three PDCCH are together multiplexing, and occupy carrier wave 2 whole bandwidth before several OFDM symbols.This scheme can be described as the improvement to scheme one.
This scheme has following advantage:
1) supports each carrier wave independent link self adaptation flexibly;
2) the PDCCH design reuse degree to R8 is bigger, need not define new Downlink Control Information (Downlink Control Information, DCI have mainly defined the resource indication of the up-downgoing Traffic Channel under different transmission mode) form;
3) a certain PDCCH of omission/false retrieval can not influence the data dispatch on other carrier waves
4) UE only need be on a carrier wave monitoring control channel, power consumption is little
The inferior position of this scheme is:
1) UE need be on a carrier wave many PDCCH of blind check, the blind check complexity is doubled and redoubled;
2) because every PDCCH has added CRC check position (way according to LTE R8 is the CRC check position that adds 16bits), when many PDCCH were parallel, the CRC expense was bigger;
3) PDSCH for PDCCH and its scheduling is arranged in the situation that designated carrier is gathered same carrier wave, and PDSCH data and PDCCH can send in same subframe; And be positioned at the situation of different carrier for the PDSCH of PDCCH and its scheduling, and PDSCH data and PDCCH can't send in same subframe, and reason is that UE decodes and need lock PDSCH place frequency again after the PDCCH and accept data.Therefore two kinds of sequential relationships of descending existence are comparatively complicated;
4) carry many PDCCH on a carrier wave, the physical resource of control area is comparatively nervous;
5) need new DCI form, support the carrier index that indication is dispatched.
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set.
The principle of this scheme can be like exemplary the showing of Fig. 5.In Fig. 5, the Downlink Control Information of resource is coded in together on scheduling carrier wave 1, carrier wave 2 and the carrier wave 3 respectively, and is carried on the PDCCH of carrier wave 2.
This scheme has following advantage:
1) a certain UE only need be on a certain carrier wave monitoring control channel, power consumption is little;
2) a certain UE only need be on a certain carrier wave PDCCH of blind check, the blind check complexity is similar with LTE R8;
3) compare scheme one and two, the resource overhead of control channel littler (owing to can save a part of CRC expense at least).
The inferior position of this scheme is:
1) needs the new DCI form of definition, support the scheduling of resource of a plurality of carrier waves;
2) owing to only a PDCCH is arranged, the influence that its false retrieval/omission brings is more serious than scheme one;
3) PDSCH for PDCCH and its scheduling is arranged in the situation that designated carrier is gathered same carrier wave, and PDSCH data and PDCCH can send in same subframe; And be positioned at the situation of different carrier for the PDSCH of PDCCH and its scheduling; PDSCH data and PDCCH can't send in same subframe; Reason is need lock PDSCH place frequency reception data again after UE decodes PDCCH, and therefore two kinds of sequential relationships of descending existence are comparatively complicated.
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
The principle of this scheme can be like exemplary the showing of Fig. 6.In Fig. 6, the Downlink Control Information of resource is coded in together on scheduling carrier wave 1, carrier wave 2 and the carrier wave 3 respectively, and is mapped on the PDCCH of each carrier wave.
This scheme has following advantage:
1) a certain UE need be on a plurality of carrier waves PDCCH of blind check, the blind check complexity is similar with R8;
2) compare scheme one, the resource overhead of control channel littler (having saved a part of CRC expense at least);
3) since the shared carrier number of PDCCH always more than or equal to the shared carrier number of PDSCH, can there be again the problem of frequency lock in PDCCH and PDSCH in same subframe transmission;
4) because PDCCH is mapped on a plurality of carrier waves, the physical resource expense of control area compares balance on a plurality of carrier waves.
The inferior position of this scheme is:
1) needs the new DCI form of definition, support the scheduling of resource of a plurality of carrier waves;
2) owing to only a PDCCH is arranged, the influence that its false retrieval/omission brings is more serious than scheme one;
3) UE needs monitoring control channel on a plurality of carrier waves simultaneously.
Based on above-mentioned four kinds of designs to PDCCH scheduling carrier wave resources in the carrier aggregation system; Introduce the resource control method embodiment in the carrier aggregation system of the present invention below, describe from base station side, Fig. 7 shows the flow chart of this embodiment; As shown in Figure 7, comprising:
S701: the base station is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system.
Said base station is the main carrier of the said terminal monitoring of needs that is in the terminal appointment of non-business data transmission state in the LTE-A system, can be the acquiescence appointment, also can be to specify according to base station configuration and/or terminal configuration.For the latter, the base station also needs and will notify to said terminal according to the main carrier of base station configuration and/or terminal configuration appointment.
The main carrier of the said terminal monitoring of needs of said appointment can be a main carrier, also can be more than one main carrier.Certainly, for the carrier aggregation system of N carrier wave, the number of said more than one main carrier, establishing its number is L, L is not more than total carrier number N of carrier aggregation system, i.e. L＜=N.
Behind the main carrier that designated terminal is monitored, the terminal can know and need the PDSCH that detects through monitoring PDCCH on the main carrier, thereby obtains the information of content such as system broadcast message from PDSCH.
When the main carrier number of said appointment is one or during greater than one, the base station can adopt above-mentioned scheme one to confirm the transmission configuration of main carrier.When being one, can be that a carrier wave in the scheme one is as the situation of main carrier like the main carrier number of appointment; Like the main carrier number of appointment is one when above, can be according to the principle in the scheme one, and one or more carrier wave is as main carrier.
Being in the terminal of non-business data transmission state in the said LTE-A system, can be the terminal that is in idle condition.Like this, the base station is specified said terminal to reside on the main carrier and is monitored this main carrier.Thereby as previously mentioned, the terminal can know and need the PDSCH that detects through monitoring PDCCH on the main carrier, further obtains the information of content such as system broadcast message from PDSCH.
Be in the terminal of non-business data transmission state in the said LTE-A system, also can be that the terminal is in Radio Link and sets up process, but do not carry out process up, the downlink service data transmission.
Usually, the random access procedure at the transmission of broadcast, paging (Paging) process and terminal all will take place on the main carrier of said appointment.
S702: after the base station receives the business data transmission request, confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration.
The base station receives the business data transmission request, can be the business data transmission indication of network side transmitted, also can be the business data transmission request that send at LTE-A terminal (hereinafter to be referred as the terminal).
The configuration of the carrier transmission of said definite business datum, concrete, can confirm to adapt in carrier number and the such scheme one to four in the employed LTE-A of the service data transmission system arbitrary carrier transmission allocation plan of this carrier number.
The carrier transmission configuration of said definite business datum can be classification grade and/or the service conditions and definite to the scheduling of resource situation according to the terminal.The classification grade at terminal comprises the ability that can be received/sent the definite terminal of this key element of bandwidth by terminal in the system.Service conditions comprises that (Quality of Service, requirement QoS) is like the requirement of certain kind business to service transmission rate and propagation delay time to service quality in the system.
Indicate said terminal monitor resource control information on the transmission carrier wave of configuration; Concrete, can be through Radio Resource control (Radio Resource Control, RRC) signaling indication; Also can be through layer one/layer two (Layers1/Layer2, L1/L2) control information indication.
Indicate said terminal monitor resource control information on the transmission carrier wave of configuration, can indicate said terminal to adopt pairing scheme monitor resource control information in said definite aforementioned schemes one to the scheme four.The transmission carrier wave here comprises the carrier wave in the LTE-A system, is not limited to main (Master) carrier wave, also can be auxiliary (Slave) carrier wave.
Afterwards, the base station can be carried out the business data transmission of upstream or downstream with the terminal.In this process, PDCCH is used for the indication of descending PDSCH resource, perhaps is used for the dispatching uplink service resources, and indicating terminal is current can be professional in which transmitted over resources of up-link carrier.
S703: after the business data transmission at base station completion and terminal, confirm the main carrier transmission configuration, and indicate said terminal monitor resource control information on the transmission main carrier of configuration.
After the business data transmission at completion of said base station and terminal, can be the business data transmission that upstream or downstream are accomplished in terminal and base station.
Said definite main carrier transmission configuration can be to confirm to adopt the main carrier transmission configuration in the aforementioned schemes one.And main carrier can be reselected according to the load of up main carrier in the base station, that is to say, the main carrier of confirming here, can with aforementioned S701 in different.
Indicate said terminal monitor resource control information on the transmission main carrier of configuration, can switch to from the state of the control messages of a plurality of carrier waves of monitoring appointment through RRC signaling indicating terminal and only monitor main carrier PDCCH information.In addition, also can be through the indication of L1/L2 signaling.
The said terminal of said indication is monitor resource control information on the transmission main carrier of configuration; Also can be after the business data transmission at base station completion and terminal; A timer T1 is opened in the base station; When timer T1 timing finished, the base station switched to the state of only monitoring main carrier PDCCH information through high-rise triggering/configuration messages (RRC signaling) indicating terminal from the state of the control messages of a plurality of carrier waves of monitoring appointment.
Need to prove that the main carrier here may not be identical carrier wave with main carrier before, but the main carrier of choosing again according to the load of carrier wave.
Describe the resource control method embodiment the carrier aggregation system of the present invention from end side below, Fig. 8 shows the flow chart of this embodiment, and is as shown in Figure 7, comprising:
S801: when the terminal is in non-business data transmission state, monitor the main carrier of acquiescence or appointment.
When the terminal was in non-business data transmission state, the transmission configuration of main carrier can be given tacit consent to, and like this, monitor on the main carrier of acquiescence at the terminal.In addition; The transmission configuration of main carrier also can be the terminal behind access network by the base station appointment; For example main carrier is specified according to base station configuration and/or terminal configuration in the base station; Like this, the terminal need receive the main carrier transmission configuration indication of sending the base station, thereby on the main carrier of base station appointment, monitors.
The main carrier of said acquiescence or appointment can be a main carrier, also can be more than one main carrier.Certainly, for the carrier aggregation system of N carrier wave, the number of said more than one main carrier, establishing its number is L, L is not more than total carrier number N of carrier aggregation system, i.e. L＜=N.
The main carrier of terminal monitoring acquiescence or appointment, terminal can know and need the PDSCH that detects through monitoring PDCCH on the main carrier, thereby obtain the information of content such as system broadcast message from PDSCH.
When the main carrier number of said appointment is one or during greater than one, the base station can adopt above-mentioned scheme one to confirm the transmission configuration of main carrier.When being one, can be that a carrier wave in the scheme one is as the situation of main carrier like the main carrier number of appointment; Like the main carrier number of appointment is one when above, can be according to the principle in the scheme one, and one or more carrier wave is as main carrier.
The terminal is in non-business data transmission state in the said LTE-A system, can be in idle condition in the terminal.Like this, the base station is specified said terminal to reside on the main carrier and is monitored this main carrier.Thereby as previously mentioned, the terminal can know and need the PDSCH that detects through monitoring PDCCH on the main carrier, further obtains the information of content such as system broadcast message from PDSCH.
The terminal is in the terminal of non-business data transmission state in the said LTE-A system, can be that the terminal is in Radio Link and sets up process, but not carry out process up, the downlink service data transmission.
Usually, the random access procedure at the reception of broadcast, paging (Paging) process and terminal all will take place on the main carrier of said appointment.
S802: the terminal is in the process of business data transmission state by non-business data transmission state exchange, receives the transmission carrier wave configuration indication send, and on the carrier wave of configuration monitor resource control information.
The terminal is in the process of business data transmission state by non-business data transmission state exchange, can receive the transmission carrier wave configuration indication of sending the base station through RRC signaling or L1/L2 control information.
The configuration of said transmission carrier wave comprises a kind of in aforementioned schemes one to the scheme four, and then said transmission carrier wave configuration indication is meant the pairing indication of scheme of employing.Thereby, the terminal can the configuration carrier wave on monitor resource control information.The transmission carrier wave here comprises the carrier wave in the LTE-A system, is not limited to main (Master) carrier wave, also can be auxiliary (Slave) carrier wave.
Afterwards, the terminal can be carried out the business data transmission of upstream or downstream with the base station.In this process, the terminal obtains to be used for descending PDSCH resource through monitoring PDCCH, perhaps obtain to be used for the dispatching uplink service resources, thereby the terminal can be on the uplink carrier resource of indication transport service.
S803: after terminal completion and the service in base station transfer of data, monitor resource control information on main carrier.
Accomplish and the service in base station transfer of data at said terminal, can be the business data transmission that upstream or downstream are accomplished in terminal and base station.
After terminal completion and the service in base station transfer of data, before monitor resource control information on the main carrier, can receive the main carrier transmission configuration indication of sending, thereby according to main carrier transmission configuration monitor resource control information on main carrier of indicating.Said main carrier transmission configuration indication of sending is shown in the embodiment of front, for confirming and the main carrier transmission configuration of indication the base station.And up main carrier can be reselected according to the load of up main carrier in the base station, that is to say, here the indication main carrier, can with aforementioned S801 in different.
The terminal receives the main carrier transmission configuration indication of sending, and can receive through the indication of RRC signaling, also can receive through the L1/L2 signaling.
Need to prove that the main carrier here may not be identical carrier wave with main carrier before.
After terminal completion and the service in base station transfer of data, before monitor resource control information on the main carrier, a timer T2 can be opened in the terminal, and when timer T2 timing finished, the terminal is monitor resource control information on main carrier.Special, the configuration of timer T2 can be notified to the terminal through high-level signaling by the base station, for example passes through the configuration of RRC signaling terminal T2.
Below provide the specific embodiment of a resource control method in the carrier aggregation system of the present invention, and combine above-mentioned from the base station and the angle at terminal describe, its principle can be with reference to figure 9.
S901: the base station is to be in the main carrier of the said terminal of appointment needs, terminal of non-business data transmission state according to scheme one monitoring in the LTE-A system according to base station configuration and/or terminal configuration, and the main carrier of appointment is indicated to said terminal.
Wherein, transmission, the paging of broadcast carried out in the base station, can on a main carrier of indication, accomplish.
S902: the terminal need receive the main carrier transmission configuration indication of sending the base station, on a main carrier of base station appointment, monitors according to scheme one.
The terminal can be through knowing and need the PDSCH that detects through monitoring PDCCH according to scheme one on the main carrier monitoring indication, further obtains the information of content such as system broadcast message from PDSCH.
Wherein, the random access procedure at terminal can be accomplished on a main carrier of appointment.
S903: the downlink service data transmission requests is initiated to the base station in the terminal.
S904: after the base station receives the downlink service data transmission requests of sending at the terminal; The carrier transmission of confirming business datum is configured to three carrier waves and scheme 4, and indicates said terminal according to scheme 4 monitor resource control information on three transmission carrier waves of configuration through the RRC signaling.
S905: the terminal is in the process of business data transmission state by non-business data transmission state exchange, receives the transmission carrier wave configuration indication send, and on three carrier waves of configuration according to scheme 4 monitor resource control information.
S906: after the downlink service data transmission at base station completion and terminal; Confirm that the main carrier transmission configuration is a new main carrier and employing scheme 1; Opening timing device T1; When timer T1 timing finished, the base station switched to the state of only monitoring main carrier PDCCH information and indicates said terminal to adopt scheme 1 monitor resource control information on a new main carrier of configuration through the state of RRC signaling indicating terminal from the control messages of a plurality of carrier waves of monitoring appointment.
S907: the terminal receives the main carrier transmission configuration indication send, thus according to the main carrier transmission configuration of indication on a new main carrier according to scheme 1 monitor resource control information.
Visible by the foregoing description, the base station is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system, after the base station receives the business data transmission request; Confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration, after the business data transmission at base station completion and terminal; Confirm the main carrier transmission configuration; And indicate said terminal monitor resource control information on the transmission main carrier of configuration, such mode has demonstrated fully the flexibility of in the carrier aggregation system resource being controlled; And; Reduce power consumption of terminal, and do not needed the terminal always on the PDCCH of a plurality of carrier waves, to monitor control messages, moreover; In the business data transmission state, utilize a plurality of carrier wave parallel transmissions, can utilize the big bandwidth of system to bring frequency diversity gain.
Below introduce the embodiment of the resource control system in the carrier aggregation system of the present invention, it comprises:
The base station is used to the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring; After receiving the business data transmission request, confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration; After the business data transmission at completion and terminal, confirm the main carrier transmission configuration, and indicate said terminal monitor resource control information on the transmission main carrier of configuration.
The main carrier of acquiescence or appointment when being in non-business data transmission state, is monitored in the terminal; By non-business data transmission state exchange is in the process of business data transmission state, receives the transmission carrier wave configuration indication send, and on the carrier wave of configuration monitor resource control information; Accomplish with the service in base station transfer of data after, the indication of monitor resource control information on the transmission main carrier of configuration that receives that the base station sends, and according to this indication monitor resource control information on main carrier.
Preferably; In the said system; Said base station is the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring, and the terminal monitors the main carrier of acquiescence or appointment when being in non-business data transmission state, comprises one or more main carrier; And each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
Preferably; In the said system; Said base station is received and is confirmed after the business data transmission request and the carrier transmission configuration of the business datum at terminal is given in indication; And the terminal is by receiving the transmission carrier wave configuration of sending in the non-business data transmission state exchange process that is the business data transmission state, comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number and the following scheme one to four in the employed LTE-A of the service data transmission system:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
Preferably; In the said system, after the business data transmission with the terminal is accomplished in said base station, confirm and main carrier transmission configuration that the terminal is given in indication; And the terminal accomplish with the service in base station transfer of data after the indication of monitor resource control information on the transmission main carrier of configuration of sending of the base station that receives; Comprise one or more main carrier, and each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
Below introduce the embodiment of the present invention one base station, Figure 10 shows the block diagram of this base station embodiment, and is shown in figure 10, and this base station embodiment comprises:
Designating unit 101 is used to the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring;
First indicating member 103, be used to receive the business data transmission request after, carrier transmission configuration is confirmed the terminal is given in the carrier transmission configuration indication of the business datum that the unit is confirmed;
The main carrier transmission configuration is confirmed unit 104, is used for confirming the main carrier transmission configuration;
Second indicating member 105 after being used for the base station and accomplishing the business data transmission with the terminal, confirms that with the main carrier transmission configuration main carrier transmission configuration that the unit is confirmed indicates to said terminal.
Preferably; In the said base station; Said designating unit 101 needs the main carrier of said terminal monitoring for the terminal appointment that is in non-business data transmission state in the LTE-A system; Comprise one or more main carrier, and each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
Preferably; In the said base station; The carrier transmission configuration of the business datum that unit 102 is confirmed is confirmed in the configuration of said carrier transmission, comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number and the following scheme one to four in the employed LTE-A of the service data transmission system:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
Preferably; In the said base station; Said main carrier transmission configuration confirms that the main carrier transmission configuration that unit 114 is confirmed comprise one or more main carrier, and each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatch designated carrier gather in the interior physical resource of same carrier wave.
Below introduce the embodiment at the present invention one terminal, Figure 11 shows the block diagram of this terminal embodiment, and is shown in figure 11, and this terminal embodiment comprises:
Preferably; The terminal is in the process of business data transmission state by non-business data transmission state exchange, and said indication receiving element 111 receives the transmission carrier wave configuration indication of sending and comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number and the following scheme one to four in the employed LTE-A of the service data transmission system:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
Visible by above embodiment, the base station is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system, after the base station receives the business data transmission request; Confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration, after the business data transmission at base station completion and terminal; Confirm the main carrier transmission configuration; And indicate said terminal monitor resource control information on the transmission main carrier of configuration, such mode has demonstrated fully the flexibility of in the carrier aggregation system resource being controlled; And; Reduce power consumption of terminal, and do not needed the terminal always on the PDCCH of a plurality of carrier waves, to monitor control messages, moreover; In the business data transmission state, utilize a plurality of carrier wave parallel transmissions, can utilize the big bandwidth of system to bring frequency diversity gain.
Though described the embodiment of the invention through embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, hope that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (31)
1. the resource control method in the carrier aggregation system is characterized in that, comprising:
The base station is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system;
After the base station receives the business data transmission request, confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration;
After the business data transmission at base station completion and terminal, confirm the main carrier transmission configuration, and indicate said terminal monitor resource control information on the transmission main carrier of configuration.
2. the method for claim 1 is characterized in that, said base station is the main carrier of the said terminal monitoring of needs that is in the terminal appointment of non-business data transmission state in the LTE-A system, comprises the main carrier of the said terminal monitoring of needs of giving tacit consent to appointment.
3. the method for claim 1; It is characterized in that; Said base station is the main carrier of the said terminal monitoring of needs that is in the terminal appointment of non-business data transmission state in the LTE-A system, comprises the main carrier of base station according to the said terminal monitoring of needs of base station configuration and/or terminal configuration appointment
And said method also comprises: the base station will be notified to said terminal according to the main carrier of base station configuration and/or terminal configuration appointment.
4. like claim 2 or 3 described methods, it is characterized in that said base station is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system, comprises more than one main carrier.
5. method as claimed in claim 4 is characterized in that, on the said more than one main carrier, each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
6. the method for claim 1 is characterized in that, the business data transmission request that said base station receives comprises:
The business data transmission indication of network side transmitted; Or,
The business data transmission request that send at the terminal.
7. the method for claim 1; It is characterized in that; The configuration of the carrier transmission of said definite business datum comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in the carrier number confirmed in the employed LTE-A of the service data transmission system and the following scheme one to four:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
8. the method for claim 1 is characterized in that, the carrier transmission configuration of said definite business datum comprises classification grade and/or service conditions and definite to the scheduling of resource situation according to the terminal.
9. the method for claim 1 is characterized in that, said indicating terminal is monitor resource control information on the transmission carrier wave of configuration, comprising:
Through RRC signaling indicating terminal monitor resource control information on the transmission carrier wave of configuration; Or,
Through L1/L2 control information indicating terminal monitor resource control information on the transmission carrier wave of configuration.
10. the method for claim 1 is characterized in that, the main carrier transmission configuration is confirmed after accomplishing the business data transmission with the terminal in said base station, comprises that the base station reselects main carrier according to the load of up main carrier.
11. method as claimed in claim 10 is characterized in that, the said main carrier of reselecting comprises on the more than one main carrier, and each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave.
12. the method for claim 1 is characterized in that, after the business data transmission at base station completion and terminal, also comprises:
Base station opening timing device T1, when timer T1 timing finished, said terminal monitor resource control information on the transmission main carrier of configuration was indicated in the base station.
13. the resource control method in the carrier aggregation system is characterized in that, comprising:
When the terminal is in non-business data transmission state, monitor the main carrier of acquiescence or appointment;
The terminal is in the process of business data transmission state by non-business data transmission state exchange, receives the transmission carrier wave configuration indication send, and on the carrier wave of configuration monitor resource control information;
After terminal completion and the service in base station transfer of data, monitor resource control information on main carrier.
14. method as claimed in claim 13 is characterized in that, before the main carrier of said monitoring appointment, also comprises:
The terminal need receive the main carrier transmission configuration indication of sending the base station.
15. method as claimed in claim 13 is characterized in that, the main carrier of said monitoring acquiescence or appointment comprises more than one main carrier.
16. method as claimed in claim 15 is characterized in that, on the said more than one main carrier, each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
17. method as claimed in claim 13 is characterized in that, said terminal comprises by receiving the transmission carrier wave configuration indication of sending in the non-business data transmission state exchange process that is the business data transmission state:
The terminal is in the process of business data transmission state by non-business data transmission state exchange, receives the transmission carrier wave configuration indication of sending through RRC signaling or L1/L2 control information.
18. method as claimed in claim 13; It is characterized in that; Transmission carrier wave that said reception is sent configuration indication comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number and the following scheme one to four in the employed LTE-A of the service data transmission system:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
19. method as claimed in claim 13 is characterized in that, after completion of said terminal and the service in base station transfer of data, before monitor resource control information on the main carrier, also comprises:
The terminal receives the main carrier transmission configuration indication of sending.
20. method as claimed in claim 19 is characterized in that, said terminal receives the main carrier transmission configuration indication of sending, and comprising:
The terminal receives the main carrier transmission configuration indication of sending through RRC signaling or L1/L2 signaling.
21. method as claimed in claim 13 is characterized in that, after completion of said terminal and the service in base station transfer of data, also comprises:
Terminal opening timing device T2, when timer T2 timing finished, the terminal is monitor resource control information on main carrier.
22. the resource control system in the carrier aggregation system is characterized in that, comprising:
The base station is used to the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring; After receiving the business data transmission request, confirm the carrier transmission configuration of business datum, and indicate said terminal monitor resource control information on the transmission carrier wave of configuration; After the business data transmission at completion and terminal, confirm the main carrier transmission configuration, and indicate said terminal monitor resource control information on the transmission main carrier of configuration;
The main carrier of acquiescence or appointment when being in non-business data transmission state, is monitored in the terminal; By non-business data transmission state exchange is in the process of business data transmission state, receives the transmission carrier wave configuration indication send, and on the carrier wave of configuration monitor resource control information; Accomplish with the service in base station transfer of data after, the indication of monitor resource control information on the transmission main carrier of configuration that receives that the base station sends, and according to this indication monitor resource control information on main carrier.
23. the system of claim 22; It is characterized in that; Said base station is the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring, and the terminal monitors the main carrier of acquiescence or appointment when being in non-business data transmission state, comprises more than one main carrier; And each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
24. the system of claim 22; It is characterized in that; Said base station is received and is confirmed after the business data transmission request and the carrier transmission configuration of the business datum at terminal is given in indication; And the terminal is by receiving the transmission carrier wave configuration of sending in the non-business data transmission state exchange process that is the business data transmission state, comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number and the following scheme one to four in the employed LTE-A of the service data transmission system:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
25. the system of claim 22; It is characterized in that; After the business data transmission at completion of said base station and terminal; Confirm and main carrier transmission configuration that the terminal is given in indication, and the terminal accomplish with the service in base station transfer of data after the indication of monitor resource control information on the transmission main carrier of configuration of sending of the base station that receives, comprise more than one main carrier; And each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
26. a base station is characterized in that, comprising:
Designating unit is used to the main carrier that the terminal appointment that is in non-business data transmission state in the LTE-A system needs said terminal monitoring;
The unit is confirmed in the carrier transmission configuration, is used for confirming the carrier transmission configuration of business datum;
First indicating member, be used to receive the business data transmission request after, carrier transmission configuration is confirmed the terminal is given in the carrier transmission configuration indication of the business datum that the unit is confirmed;
The main carrier transmission configuration is confirmed the unit, is used for confirming the main carrier transmission configuration;
Second indicating member after being used for the base station and accomplishing the business data transmission with the terminal, confirms that with the main carrier transmission configuration main carrier transmission configuration that the unit is confirmed indicates to said terminal.
27. base station as claimed in claim 26; It is characterized in that; Said designating unit is the main carrier that is in the said terminal monitoring of terminal appointment needs of non-business data transmission state in the LTE-A system; Comprise more than one main carrier, and each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
28. base station as claimed in claim 26; It is characterized in that; The carrier transmission configuration of the business datum that the unit is confirmed is confirmed in the configuration of said carrier transmission, comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number and the following scheme one to four in the employed LTE-A of the service data transmission system:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
29. base station as claimed in claim 26; It is characterized in that; Said main carrier transmission configuration confirms that the main carrier transmission configuration that the unit is confirmed comprises more than one main carrier; And each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set.
30. a terminal is characterized in that, comprising:
The indication receiving element is used for the process that the terminal is the business data transmission state by non-business data transmission state exchange, receives the transmission carrier wave configuration indication of sending;
Monitoring unit when being used for being at the terminal non-business data transmission state, is monitored the main carrier of acquiescence or appointment; Is in the process of business data transmission state at the terminal by non-business data transmission state exchange, according to the transmission carrier wave configuration indication that receiving element receives, monitor resource control information on the carrier wave of configuration; After terminal completion and service in base station transfer of data, monitor resource control information on main carrier.
31. terminal as claimed in claim 30; It is characterized in that; The terminal is in the process of business data transmission state by non-business data transmission state exchange, and said indication receiving element receives the transmission carrier wave configuration indication of sending and comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number and the following scheme one to four in the employed LTE-A of the service data transmission system:
Scheme one: each carrier wave independently sends PDCCH, and the PDCCH in each carrier wave only dispatches the physical resource in the same carrier wave in the designated carrier set;
Scheme two; On a carrier wave, carry a plurality of independently PDCCH, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set;
Scheme three: the Downlink Control Information of control different carrier is coded in together, and is carried on the PDCCH of a carrier wave in the designated carrier set;
Scheme four: the Downlink Control Information of control different carrier is coded in together, and is mapped on the PDCCH of each carrier wave in the designated carrier set.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102398662A CN101754380B (en) | 2008-12-19 | 2008-12-19 | Resource control method, system, base and terminal in carrier polymerization system |
| PCT/CN2009/001510 WO2010069153A1 (en) | 2008-12-19 | 2009-12-18 | Resources and load controlling method, system, apparatus, base station and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102398662A CN101754380B (en) | 2008-12-19 | 2008-12-19 | Resource control method, system, base and terminal in carrier polymerization system |
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| CN101754380B true CN101754380B (en) | 2012-07-25 |
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| CN102307086B (en) * | 2011-08-19 | 2017-03-15 | 中兴通讯股份有限公司 | Based on method and communication terminal that carrier aggregation technology realizes mixed communication |
| WO2013138130A1 (en) * | 2012-03-14 | 2013-09-19 | Marvell World Trade Ltd. | Carrier aggregation scheduling based on traffic characteristics and cell characteristics |
| WO2014082274A1 (en) * | 2012-11-30 | 2014-06-05 | 华为技术有限公司 | Carrier aggregation communication method, device and system based on long term evolution system |
| CN103874208B (en) * | 2012-12-14 | 2017-07-14 | 电信科学技术研究院 | A kind of shared channel resources distribution method and equipment based on multicarrier system |
| CN111294190B (en) * | 2013-07-16 | 2024-01-19 | 华为技术有限公司 | Control information transmission method, user equipment and base station |
| CN103618589A (en) * | 2013-11-22 | 2014-03-05 | 北京北方烽火科技有限公司 | Confirmation message transmission method and system |
| GB2526197B (en) * | 2014-04-11 | 2020-11-18 | Skyworks Solutions Inc | Circuits and methods related to radio-frequency receivers having carrier aggregation |
| CN105656605B (en) * | 2014-11-14 | 2018-12-28 | 普天信息技术有限公司 | Interrupt the continuous transmission method and server of HARQ process |
| EP3264842B1 (en) | 2015-03-20 | 2020-07-29 | Huawei Technologies Co., Ltd. | Carrier configuration method and device |
| WO2018049565A1 (en) * | 2016-09-13 | 2018-03-22 | 华为技术有限公司 | Data sending method, data receiving method and apparatus |
| CN106792909A (en) * | 2016-11-23 | 2017-05-31 | 中国联合网络通信集团有限公司 | The collocation method and device of heterogeneous network main carrier |
| CN107205272B (en) * | 2017-05-23 | 2021-08-20 | Oppo广东移动通信有限公司 | Communication method, communication device, computer-readable storage medium and electronic equipment |
| CN110475263A (en) * | 2018-05-11 | 2019-11-19 | 中兴通讯股份有限公司 | The selection method and device of resource |
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