CN101754380A - 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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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, can provide higher peak rate.
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 that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring;
After the base station receives the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal monitor resource control information on the transmission carrier wave of configuration;
The base station is determined the main carrier transmission configuration, and is indicated described terminal monitor resource control information on the transmission main carrier of configuration after finishing business data transmission with terminal.
Resource control method in a kind of carrier aggregation system comprises:
When terminal is in non-business data transmission state, monitor the main carrier of acquiescence or appointment;
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;
Terminal finish with the service in base station transfer of data after, 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 terminal that is in non-business data transmission state in the LTE-A system to specify the main carrier that needs described terminal monitoring; After receiving the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal monitor resource control information on the transmission carrier wave of configuration; After finishing the business data transmission with terminal, determine the main carrier transmission configuration, and indicate described terminal monitor resource control information on the transmission main carrier of configuration.
Terminal when being in non-business data transmission state, is monitored the main carrier of acquiescence or appointment; 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; Finish 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 terminal that is in non-business data transmission state in the LTE-A system to specify the main carrier that needs described terminal monitoring;
Carrier transmission configuration determining unit is used for determining the carrier transmission configuration of business datum;
First indicating member, be used to receive the business data transmission request after, carrier transmission is disposed the carrier transmission configuration indication of the business datum that determining unit determines and gives terminal;
Main carrier transmission configuration determining unit is used for determining the main carrier transmission configuration;
Second indicating member after being used for the base station and finishing business data transmission with terminal, is indicated the main carrier transmission configuration that main carrier transmission configuration determining unit is determined to described terminal.
A kind of terminal comprises:
The indication receiving element is used for the process that 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 is used for monitoring the main carrier of acquiescence or appointment when terminal is in non-business data transmission state; Is in the process of business data transmission state in 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; Terminal finish with the service in base station transfer of data after, monitor resource control information on main carrier.
The technical scheme that is provided by the above embodiment of the invention as seen, as seen from the above-described embodiment, the base station is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring, after the base station receives the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal the configuration the transmission carrier wave on monitor resource control information, after business data transmission with terminal is finished in the base station, determine the main carrier transmission configuration, and indicate described terminal the configuration the transmission main carrier on monitor resource control information, such mode, can realize in the carrier aggregation system flexibility to resource control, and, reduce power consumption of terminal, and do not needed 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 schematic diagram for a plurality of continuous LTE carrier waves in the prior art;
Fig. 2 carries out the polymerization schematic diagram 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 resource control method in the carrier aggregation system of the present invention from the embodiment of base station angle description;
Fig. 8 is the flow chart of the resource control method in the carrier aggregation system of the present invention from the embodiment of terminal angle description;
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 described in further detail below in conjunction with drawings and embodiments.
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 scheme 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 as exemplary the showing of Fig. 3.The independent PDCCH that sends in the subframe of carrier wave 1, carrier wave 2 and carrier wave 3, PDCCH occupy control information transmission on preceding several OFDM symbols of the whole bandwidth of carrier wave, and be concrete according to various situations, 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 in the subframe of place, 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, as seen from the figure, and 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, do not needed to define extra PDCCH structure and signaling format, agreement is changed little;
2) support independently link circuit self-adapting of each carrier wave 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 cyclic redundancy check (CRC) position.
Scheme two: a plurality of independently PDCCH of carrying on a carrier wave, the physical resource of a carrier wave in each PDCCH scheduling designated carrier set.
The principle of this scheme can be as 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 occupies preceding several OFDM symbols of carrier wave 2 whole bandwidth.This scheme can be described as the improvement to scheme one.
This scheme has following advantage:
1) supports independently link circuit self-adapting of each carrier wave flexibly;
2) the PDCCH design reuse degree to R8 is bigger, does not need to 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, the inferior position of little this scheme of power consumption 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 needs to lock again PDSCH place frequency 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 as 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 to 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 to need to lock again PDSCH place frequency reception data 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 as 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 to 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, PDCCH and PDSCH can send in same subframe, do not have again the problem of frequency lock;
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 that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring.
Described base station is the main carrier of the described 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 the main carrier according to base station configuration and/or terminal configuration appointment is notified to described terminal.
The main carrier of the described terminal monitoring of needs of described 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 described 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, terminal can know and need the PDSCH that detects by 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 described appointment is one or during greater than one, the base station can adopt above-mentioned scheme one to determine 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 as the main carrier number of appointment; As 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 described LTE-A system, can be the terminal that is in idle condition.Like this, the base station is specified described terminal to reside on the main carrier and is monitored this main carrier.Thereby as previously mentioned, terminal can know and need the PDSCH that detects by 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 described LTE-A system, also can be that 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 of the transmission of broadcast, paging (Paging) process and terminal all will take place on the main carrier of described appointment.
S702: after the base station receives the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described 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 LTE-A terminal (hereinafter to be referred as terminal) is sent.
The configuration of the carrier transmission of described definite business datum, concrete, can determine to adapt in carrier number in the employed LTE-A of the service data transmission system and the such scheme one to four arbitrary carrier transmission allocation plan of this carrier number.
The carrier transmission configuration of described definite business datum can be classification grade and/or the service conditions and definite to the scheduling of resource situation according to terminal.The classification grade of terminal comprises the ability that can be received/be 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 as the requirement of certain kind business to service transmission rate and propagation delay time to service quality in the system.
Indicate described terminal monitor resource control information on the transmission carrier wave of configuration, concrete, can be by Radio Resource control (Radio Resource Control, RRC) signaling indication, also can be by layer one/layer two (Layers1/Layer2, L1/L2) control information indication.
Indicate described terminal monitor resource control information on the transmission carrier wave of configuration, can indicate described terminal to adopt described definite aforementioned schemes one pairing scheme monitor resource control information 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 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 in which transmitted over resources business of up-link carrier.
S703: the base station is determined the main carrier transmission configuration, and is indicated described terminal monitor resource control information on the transmission main carrier of configuration after finishing business data transmission with terminal.
Described base station can be the business data transmission that upstream or downstream are finished in terminal and base station after finishing business data transmission with terminal.
Described definite main carrier transmission configuration can be the main carrier transmission configuration of determining to adopt 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 Que Dinging here, can with aforementioned S701 in different.
Indicate described 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 by RRC signaling indicating terminal and only monitor main carrier PDCCH information.In addition, also can be by the indication of L1/L2 signaling.
The described terminal of described indication is monitor resource control information on the transmission main carrier of configuration, also can be after business data transmission with terminal is finished in the base station, 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 by 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 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, as shown in Figure 7, comprising:
S801: when terminal is in non-business data transmission state, monitor the main carrier of acquiescence or appointment.
When terminal was in non-business data transmission state, the transmission configuration of main carrier can be given tacit consent to, and like this, terminal is monitored on the main carrier of acquiescence.In addition, the transmission configuration of main carrier also can be 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, terminal need receive the main carrier transmission configuration indication of sending the base station, thereby monitors on the main carrier of base station appointment.
The main carrier of described 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 described 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 by 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 described appointment is one or during greater than one, the base station can adopt above-mentioned scheme one to determine 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 as the main carrier number of appointment; As 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.
Terminal is in non-business data transmission state in the described LTE-A system, can terminal be in idle condition.Like this, the base station is specified described terminal to reside on the main carrier and is monitored this main carrier.Thereby as previously mentioned, terminal can know and need the PDSCH that detects by monitoring PDCCH on the main carrier, further obtains the information of content such as system broadcast message from PDSCH.
Terminal is in the terminal of non-business data transmission state in the described LTE-A system, can be that 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 of the reception of broadcast, paging (Paging) process and terminal all will take place on the main carrier of described appointment.
S802: 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.
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 by RRC signaling or L1/L2 control information.
The configuration of described transmission carrier wave comprises a kind of to the scheme four of aforementioned schemes one, and then described transmission carrier wave configuration indication is meant the pairing indication of scheme of employing.Thereby, 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, terminal can be carried out the business data transmission of upstream or downstream with the base station.In this process, terminal obtains to be used for descending PDSCH resource by monitoring PDCCH, perhaps obtain to be used for the dispatching uplink service resources, thereby terminal can be on the uplink carrier resource of indication transport service.
S803: terminal finish with the service in base station transfer of data after, monitor resource control information on main carrier.
Described terminal is finished and the service in base station transfer of data, can be the business data transmission that upstream or downstream are finished in terminal and base station.
Terminal finish with the service in base station transfer of data after, before monitor resource control information on the main carrier, can receive the main carrier transmission configuration indication of sending, thus according to main carrier transmission configuration monitor resource control information on main carrier of indication.Described main carrier transmission configuration indication of sending, as in the previous examples shown in, for determining 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, Zhi Shi main carrier here, can with aforementioned S801 in different.
Terminal receives the main carrier transmission configuration indication of sending, and can receive by the indication of RRC signaling, also can receive by the L1/L2 signaling.
Need to prove that the main carrier here may not be identical carrier wave with main carrier before.
Terminal finish with the service in base station transfer of data after, before monitor resource control information on the main carrier, terminal can be opened a timer T2, when timer T2 timing finished, terminal is monitor resource control information on main carrier.Especially, the configuration of timer T2 can be notified to terminal by 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 in conjunction with above-mentioned from the base station and the angle of terminal describe, its principle can be with reference to figure 9.
S901: the base station is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier of the described terminal of needs according to scheme one monitoring according to base station configuration and/or terminal configuration, and the main carrier of appointment is indicated to described terminal.
Wherein, transmission, the paging of broadcast carried out in the base station, can finish on a main carrier of indication.
S902: terminal need receive the main carrier transmission configuration indication of sending the base station, monitors according to scheme one on a main carrier of base station appointment.
Terminal can be by knowing and need the PDSCH that detects by 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 of terminal can be finished on a main carrier of appointment.
S903: terminal is initiated the downlink service data transmission and is asked the base station.
S904: after the base station receives the downlink service data transmission request that terminal sends, the carrier transmission of determining business datum is configured to three carrier waves and scheme 4, and indicates described terminal according to scheme 4 monitor resource control information on three transmission carrier waves of configuration by the RRC signaling.
S905: 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: the base station finish with the transmission of the downlink service data of terminal after, determine 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 described terminal to adopt scheme 1 monitor resource control information on a new main carrier of configuration by the state of RRC signaling indicating terminal from the control messages of a plurality of carrier waves of monitoring appointment.
S907: 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.
As seen from the above-described embodiment, the base station is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring, after the base station receives the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal the configuration the transmission carrier wave on monitor resource control information, after business data transmission with terminal is finished in the base station, determine the main carrier transmission configuration, and indicate described terminal the configuration the transmission main carrier on monitor resource control information, such mode, demonstrated fully the flexibility of in the carrier aggregation system resource being controlled, and, reduced power consumption of terminal, and do not need 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 terminal that is in non-business data transmission state in the LTE-A system to specify the main carrier that needs described terminal monitoring; After receiving the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal monitor resource control information on the transmission carrier wave of configuration; After finishing the business data transmission with terminal, determine the main carrier transmission configuration, and indicate described terminal monitor resource control information on the transmission main carrier of configuration.
Terminal when being in non-business data transmission state, is monitored the main carrier of acquiescence or appointment; 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; Finish 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 described system, described base station is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring, and terminal is monitored the main carrier of acquiescence or appointment when being in non-business data transmission state, 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 described system, described base station is received and is determined after the business data transmission request and the carrier transmission configuration of the business datum of terminal is given in indication, and 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 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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 described system, after business data transmission with terminal is finished in described base station, the main carrier transmission configuration of terminal is given in definite and indication, and terminal finish 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 as shown in figure 10, this base station embodiment comprises:
Designating unit 101 is used to the terminal that is in non-business data transmission state in the LTE-A system to specify the main carrier that needs described terminal monitoring;
Carrier transmission configuration determining unit 102 is used for determining the carrier transmission configuration of business datum;
First indicating member 103, be used to receive the business data transmission request after, carrier transmission is disposed the carrier transmission configuration indication of the business datum that determining unit determines and gives terminal;
Main carrier transmission configuration determining unit 104 is used for determining the main carrier transmission configuration;
Second indicating member 105 after being used for the base station and finishing business data transmission with terminal, is indicated the main carrier transmission configuration that main carrier transmission configuration determining unit is determined to described terminal.
Preferably, in the described base station, described designating unit 101 is specified the main carrier that needs described terminal monitoring for the terminal 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 described base station, the carrier transmission configuration of the business datum that described carrier transmission configuration determining unit 102 is determined comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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 described base station, the main carrier transmission configuration that described main carrier transmission configuration determining unit 114 is determined 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 of the present invention's one terminal, Figure 11 shows the block diagram of this terminal embodiment, and as shown in figure 11, this terminal embodiment comprises:
Preferably, terminal is in the process of business data transmission state by non-business data transmission state exchange, and described 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 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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.
By above embodiment as seen, the base station is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring, after the base station receives the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal the configuration the transmission carrier wave on monitor resource control information, after business data transmission with terminal is finished in the base station, determine the main carrier transmission configuration, and indicate described terminal the configuration the transmission main carrier on monitor resource control information, such mode, demonstrated fully the flexibility of in the carrier aggregation system resource being controlled, and, reduced power consumption of terminal, and do not need 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 by 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, wish 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 that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring;
After the base station receives the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal monitor resource control information on the transmission carrier wave of configuration;
The base station is determined the main carrier transmission configuration, and is indicated described terminal monitor resource control information on the transmission main carrier of configuration after finishing business data transmission with terminal.
2. the method for claim 1 is characterized in that, described base station is the main carrier of the described 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 described terminal monitoring of needs of giving tacit consent to appointment.
3. the method for claim 1, it is characterized in that, described base station is the main carrier of the described 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 described terminal monitoring of needs of base station configuration and/or terminal configuration appointment
And described method also comprises: the base station will be notified to described terminal according to the main carrier of base station configuration and/or terminal configuration appointment.
4. as claim 2 or 3 described methods, it is characterized in that described base station is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring, comprises one or more main carrier.
5. method as claimed in claim 4 is characterized in that, on the described one or more 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 described base station receives comprises:
The business data transmission indication of network side transmitted; Or,
The business data transmission request that terminal is sent.
7. the method for claim 1, it is characterized in that, the configuration of the carrier transmission of described definite business datum comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in the carrier number determined 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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 described definite business datum comprises classification grade and/or service conditions and definite to the scheduling of resource situation according to terminal.
9. the method for claim 1 is characterized in that, described indicating terminal is monitor resource control information on the transmission carrier wave of configuration, comprising:
By RRC signaling indicating terminal monitor resource control information on the transmission carrier wave of configuration; Or,
By 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 determined after finishing business data transmission with terminal in described 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 described main carrier of reselecting comprises on the 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.
12. the method for claim 1 is characterized in that, the base station also comprises after finishing business data transmission with terminal:
Base station opening timing device T1, when timer T1 timing finished, described 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 terminal is in non-business data transmission state, monitor the main carrier of acquiescence or appointment;
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;
Terminal finish with the service in base station transfer of data after, monitor resource control information on main carrier.
14. method as claimed in claim 13 is characterized in that, before the main carrier of described monitoring appointment, also comprises:
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 described monitoring acquiescence or appointment comprises one or more main carrier.
16. method as claimed in claim 15 is characterized in that, on the described one or more 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, described 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:
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 by RRC signaling or L1/L2 control information.
18. method as claimed in claim 13, it is characterized in that, transmission carrier wave that described reception is sent configuration indication comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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, described terminal finish with the service in base station transfer of data after, before monitor resource control information on the main carrier, also comprise:
Terminal receives the main carrier transmission configuration indication of sending.
20. method as claimed in claim 19 is characterized in that, described terminal receives the main carrier transmission configuration indication of sending, and comprising:
Terminal receives the main carrier transmission configuration indication of sending by RRC signaling or L1/L2 signaling.
21. method as claimed in claim 13 is characterized in that, described terminal finish with the service in base station transfer of data after, also comprise:
Terminal opening timing device T2, when timer T2 timing finished, 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 terminal that is in non-business data transmission state in the LTE-A system to specify the main carrier that needs described terminal monitoring; After receiving the business data transmission request, determine the carrier transmission configuration of business datum, and indicate described terminal monitor resource control information on the transmission carrier wave of configuration; After finishing the business data transmission with terminal, determine the main carrier transmission configuration, and indicate described terminal monitor resource control information on the transmission main carrier of configuration;
Terminal when being in non-business data transmission state, is monitored the main carrier of acquiescence or appointment; 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; Finish 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 as claimed in claim 22, it is characterized in that, described base station is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring, and terminal is monitored the main carrier of acquiescence or appointment when being in non-business data transmission state, 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.
24. the system as claimed in claim 22, it is characterized in that, described base station is received and is determined after the business data transmission request and the carrier transmission configuration of the business datum of terminal is given in indication, and 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 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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 as claimed in claim 22, it is characterized in that, after business data transmission with terminal is finished in described base station, the main carrier transmission configuration of terminal is given in definite and indication, and terminal finish 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.
26. a base station is characterized in that, comprising:
Designating unit is used to the terminal that is in non-business data transmission state in the LTE-A system to specify the main carrier that needs described terminal monitoring;
Carrier transmission configuration determining unit is used for determining the carrier transmission configuration of business datum;
First indicating member, be used to receive the business data transmission request after, carrier transmission is disposed the carrier transmission configuration indication of the business datum that determining unit determines and gives terminal;
Main carrier transmission configuration determining unit is used for determining the main carrier transmission configuration;
Second indicating member after being used for the base station and finishing business data transmission with terminal, is indicated the main carrier transmission configuration that main carrier transmission configuration determining unit is determined to described terminal.
27. base station as claimed in claim 26, it is characterized in that, described designating unit is that the terminal that is in non-business data transmission state in the LTE-A system is specified the main carrier that needs described terminal monitoring, 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.
28. base station as claimed in claim 26, it is characterized in that, the carrier transmission configuration of the business datum that described carrier transmission configuration determining unit is determined comprises the arbitrary carrier transmission allocation plan that adapts to this carrier number in carrier number 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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, the main carrier transmission configuration that described main carrier transmission configuration determining unit is determined 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.
30. a terminal is characterized in that, comprising:
The indication receiving element is used for the process that 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 is used for monitoring the main carrier of acquiescence or appointment when terminal is in non-business data transmission state; Is in the process of business data transmission state in 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; Terminal finish with the service in base station transfer of data after, monitor resource control information on main carrier.
31. terminal as claimed in claim 30, it is characterized in that, terminal is in the process of business data transmission state by non-business data transmission state exchange, and described 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 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; The a plurality of independently PDCCH of carrying on a carrier wave, 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 |
Applications Claiming Priority (1)
| 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 CN101754380B (en) | 2012-07-25 |
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