CN101932070B - Method and device for allocating carriers in carrier aggregation system - Google Patents
Method and device for allocating carriers in carrier aggregation system Download PDFInfo
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- CN101932070B CN101932070B CN2009100874141A CN200910087414A CN101932070B CN 101932070 B CN101932070 B CN 101932070B CN 2009100874141 A CN2009100874141 A CN 2009100874141A CN 200910087414 A CN200910087414 A CN 200910087414A CN 101932070 B CN101932070 B CN 101932070B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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Abstract
The invention discloses a method and a device for allocating carriers in a carrier aggregation system, which can ensure that a user terminal reduces the blind reducing times on a channel. The method comprises that: a base station allocates the carriers of a channel requiring monitoring the bearer control information and the carriers of a channel requiring receiving the bearer downlink data for the terminal by transmitting carrier set information of the channel requiring monitoring bearer control information and carrier set information of the channel requiring receiving bearer downlink data to the terminal.
Description
Technical field
The present invention relates to communication technical field, refer to especially a kind of method and device of allocating carriers in carrier aggregation system.
Background technology
As shown in Figure 1, in the wireless communication system before long evolving system (LTE) reaches, in the ，Yi Ge community, a carrier wave can only be arranged, in the LTE system, maximum bandwidth is 20MHz.
In advanced long evolving system (LTE Advanced, LTE-A) system, the peak rate of system has huge raising than LTE, requires to reach descending 1Gbps, up 500Mbps.Can't meet this demand on the bandwidth of 20MHz.Therefore, the LTE-A system needs spread bandwidth, comprise a plurality of carrier waves in the community of a LTE-A, and introduce carrier aggregation (Carrier Aggregation, CA) technology, be in same community, continuous or discrete a plurality of carrier waves are concentrated in together, and are Terminal Service, so that required speed to be provided when needed simultaneously, these carrier waves are commonly referred to as member carrier (Component Carrier), are called for short carrier wave.For the terminal that guarantees LTE, can under the carrier wave of each polymerization, work, each carrier wave maximum is no more than 20MHz.In LTE-A community shown in Fig. 2, polymerization 4 carrier waves.Transfer of data can be carried out with terminal in base station simultaneously on 4 carrier waves, to improve throughput of system.
During the standard of current LTE-A is discussed, to the two kinds of candidate schemes that are designed with of the Physical Downlink Control Channel (Physicaldownlink control channel, PDCCH) of carrier aggregation system.
Scheme one: each carrier wave independently sends PDCCH, and this PDCCH only can dispatch the physical resource of this carrier wave, as shown in Figure 3.
Scheme two: use a plurality of independent PDCCH be carried on a certain carrier wave to dispatch a plurality of carrier resources, this scheme is the improvement to scheme one, and in this case, every PDCCH can only dispatch the resource of a carrier wave, as shown in Figure 4.For scheme two, UE need to monitor the carrier wave of PDCCH and the carrier wave (monitoring PDSCH) of the actual reception of UE data can be the same or different.
The structure of LTE descending sub frame as shown in Figure 5, each descending sub frame is comprised of 14 OFDMs (OFDM) symbol, front 2～3 OFDM symbols of descending sub frame are control character, and for the bearing downlink control signal, the channel of bearing downlink control signal is called the PDCCH channel.All the other OFDM symbols carry downlink datas, the physical layer channel of bearing downlink data is called the PDSCH channel.Control signal comprises: to (schemes one) such as the schedule information of this descending sub frame and corresponding sub-frame of uplink and relevant HARQ information, or to (schemes two) such as the schedule information of this descending sub frame and other descending sub frames and corresponding sub-frame of uplink and relevant HARQ information.
Terminal determines in corresponding subframe whether have and distributed resource by the control signal that receives descending sub frame.If distributed resource, terminal obtains the temporal frequency position of resource according to the indication of dispatch, and carries out the data transmitting-receiving.
In the LTE system, each community only has a descending carrier, therefore terminal only need to be monitored PDCCH and a PDSCH on descending carrier.In the LTE-A system, there are a plurality of descending carriers, and a transfer of data that carrier wave can be dispatched other carrier waves, so PDCCH and PDSCH that UE need to monitor may be positioned on different carrier waves.
In LTE, each community only has a descending carrier, if the frequency of neighbor cell carrier wave is identical, the interference between PDCCH can't be avoided.But, in LTE-A, may there be a plurality of descending carriers in each community, the PDCCH of neighbor cell is placed on different carrier waves, can reduce the interference between PDCCH, more reliable control information is provided, terminal is better worked.The carrier position of coordinating the PDCCH place between neighbor cell can be called the Inter-Cell Interference Coordination (ICIC) of PDCCH.
In prior art, when activation UE monitors certain descending carrier, be exactly to activate PDCCH and the PDSCH that UE monitors this carrier wave, the method can be applied to scheme one simultaneously.But for scheme two, because the PDCCH of required monitoring is different with the PDSCH possibility, so adopt prior art can unnecessary PDCCH be monitored, increased the number of times of PDCCH blind check, also can increase the interference between PDCCH simultaneously.
Lower media access control (MAC) protocol Data Unit (PDU) basic structure and characteristics thereof are described below.
The general structure of MAC PDU as shown in Figure 6.Identify the situation that a MAC PDU comprises MAC head, Medium Access Control (MAC) Service Data Unit (SDU), MAC layer control unit (MAC CE, MAC ControlElement) and padding in this figure.The MAC head is comprised of one or more MAC heads.
Lower MAC layer control command below described.
Complete MAC control command comprises MAC head and MAC layer control unit, and MAC head is used to indicate type and the length of corresponding MAC CE or MAC SDU.MAC CE is for Bearer Control message.The MAC CE defined in the LTE system has set form, and length is the integral words joint.
The form of LTE MAC head has two kinds:
The first form, shown in Fig. 7 a and 7b, MAC form of LTE is: the sub-head of R/R/E/LCID/F/L.7a is depicted as the sub-head of R/R/E/LCID/F/L7 of 7 bits, the sub-head of the R/R/E/LCID/F/L7 that 7b is 15 bits.
The second form, shown in Figure 8, MAC form of LTE is the sub-head of R/R/E/LCID.
Wherein, type and the MAC SDU affiliated logic channel of logical channel identifier (LCID) territory for identifying MAC CE.L indicates in territory the length of corresponding MAC CE or MAC SDU.
Summary of the invention
The invention provides a kind of method and device of allocating carriers in carrier aggregation system, can make user terminal reduce the blind reducing number of times to channel.
The method of a kind of allocating carriers in carrier aggregation system that the embodiment of the present invention provides comprises:
Base station by terminal, send this terminal need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data, the carrier wave and needing that need to monitor the channel of bear control information for this terminal configuration receives the carrier wave of the channel of bearing downlink data.
The device of a kind of allocating carriers in carrier aggregation system that the embodiment of the present invention provides comprises:
The carrier wave determining unit, for this terminal, need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data;
Dispensing unit, by to terminal, send this terminal need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data, the carrier wave and needing that need to monitor the channel of bear control information for this terminal configuration receives the carrier wave of the channel of bearing downlink data.
In the embodiment of the present invention, in carrier aggregation system, carrier set information from this terminal to this terminal that need to monitor the carrier set information of PDCCH and need to receive PDSCH by send, can reduce terminal unnecessary channel is all carried out to the number of times of blind reducing, reduces the power consumption of end side.
The accompanying drawing explanation
The distribution of carriers schematic diagram of Tu1Wei LTE community;
Fig. 2 is the distribution of carriers schematic diagram of the LTE-A community of employing CA;
Fig. 3 independently calls the PDCCH schematic diagram for each carrier wave;
Fig. 4 is for being used a plurality of independent PDCCH be carried on a certain carrier wave to dispatch the schematic diagram of a plurality of carrier resources;
The structural representation that Fig. 5 is the LTE descending sub frame;
Fig. 6 is MAC PDU basic structure schematic diagram;
The schematic diagram that Fig. 7 a and Fig. 7 b are MAC form one;
The schematic diagram that Fig. 8 is MAC form two;
The schematic flow sheet that Fig. 9 is embodiment of the present invention method;
Figure 10 is the embodiment of the present invention one carrier wave configuration schematic diagram;
Figure 11 adopts the form schematic diagram of a kind of MAC CE in embodiment of the present invention configuration carrier wave;
Figure 12 adopts the form schematic diagram of another kind of MAC CE in embodiment of the present invention configuration carrier wave;
The structural representation that Figure 13 is embodiment of the present invention device.
Embodiment
In embodiments of the present invention, in multi-carrier aggregation system, base station by terminal, send this terminal need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data, the carrier wave and needing that need to monitor the channel of bear control information for this terminal configuration receives the carrier wave of the channel of bearing downlink data.
Such as: when the described channel that need to monitor bear control information is PDCCH, when the described channel that need to receive the bearing downlink data is PDSCH, by carrier set information from this terminal to this terminal that need to monitor the carrier set information of PDCCH and need receive PDSCH for send, for this terminal configuration need to be monitored the carrier wave of PDCCH and need to receive the carrier wave of PDSCH.
The carrier set of PDCCH can need to be monitored for this terminal configuration by send the first dedicated signaling to terminal in base station, and need to receive the carrier set of PDSCH by send the second dedicated signaling to this terminal for this terminal configuration, wherein, contain this terminal in the first dedicated signaling and need to monitor the carrier set information of PDCCH, contain the carrier set information that this terminal need to receive PDSCH in the second dedicated signaling.
The carrier set of PDCCH and the carrier set that this terminal configuration need to receive PDSCH also can need to be monitored for this terminal configuration by send the 4th dedicated signaling to terminal in base station, wherein, contain this terminal in the 4th dedicated signaling and need to monitor the carrier set information of PDCCH, and this terminal need to receive the carrier set information of PDSCH.Described the 4th dedicated signaling can be controlled for Radio Resource the control unit (MAC CE) of (RRC) signaling or media access control.
Further, the carrier wave of Physical Uplink Control Channel (PUCCH) can also need to be used for this terminal configuration by send the 3rd dedicated signaling to this terminal in base station, wherein, contain the carrier set information that this terminal need to be used PUCCH in the 3rd dedicated signaling.
Certainly, described terminal also can be utilized the corresponding relation of the uplink and downlink carrier wave of setting, and the described carrier set that needs to monitor PDCCH, determines the carrier set that needs to use PUCCH.
Relation between described carrier set that need to monitor PDCCH and the described carrier set that needs to receive PDSCH is not limit, can be identical, also can be different, such as: two intersection of sets or non-intersect.
Base station can send described the first dedicated signaling and described the second dedicated signaling to this terminal simultaneously, need to monitor the carrier set and the carrier set information that needs to receive PDSCH of PDCCH for this terminal configuration simultaneously, also can send described the first dedicated signaling and described the second dedicated signaling to this terminal according to sequencing, or send described the second dedicated signaling and described the first dedicated signaling according to sequencing to this terminal.
Below take and send described the first dedicated signaling and described the second dedicated signaling is example according to sequencing to this terminal, the implementation procedure of the inventive method is described.
Shown in Figure 9, the method for the embodiment of the present invention comprises the following steps:
Step 901: base station need to be monitored the carrier set of PDCCH by send the first dedicated signaling to terminal for this terminal configuration.The first dedicated signaling is RRC signaling or MAC CE.
Step 902: base station need to receive the carrier set of PDSCH by send the second dedicated signaling to this terminal for this terminal configuration.The second dedicated signaling is RRC signaling or MAC CE.
Further, base station can be dispatched this terminal carry out the monitoring of PDCCH and the reception of corresponding PDSCH in same subframe.
Inter-Cell Interference Coordination (ICIC) can also, according to the area interference situation, for this terminal reconfigures the carrier wave that needs to monitor PDCCH, be realized in base station.
When the carrier wave of the monitoring of the needs for this terminal configuration PDCCH is the DRX state, be that the carrier wave of the needs reception PDSCH of this terminal configuration is the DRX state.
Further, base station can deexcitation the needs that are this terminal configuration monitor the carrier set of PDCCH and need to receive the carrier set of PDSCH.
Below with RRC signal deployment carrier wave, for exemplifying specific embodiment one, the solution of the present invention is described.
Shown in Figure 10, there are 4 carrier waves in community, and at first UE has set up the RRC connection on carrier wave 3, enters connection status, and only PDCCH and the PDSCH of monitoring carrier wave 3.Now, because the channel quality of the needs of ICIC or carrier wave 3 is poor, base station wishes UE is adjusted on carrier wave 2 and works, and now, base station is by the PDCCH of RRC dedicated signaling configuration UE monitoring carrier wave 2.Here can adopt the RRC dedicated signaling form shown in table 1.
| Content | Span | Concrete value (embodiment 1) |
| Need to monitor the carrier index list of PDCCH | 1～N | 2 |
Table 1
UE, according to the content of dedicated signaling, forwards on carrier wave 2 and works, and monitors its PDCCH.Afterwards, if UE has big data quantity to need transmission, the base station judgement need to be carried out CA transmission (utilizing carrier wave 1,2,3) to it, base station receives PDSCH by RRC dedicated signaling configuration UE again on carrier wave 1,2,3, RRC dedicated signaling form is as shown in table 2, the RRC dedicated signaling here can comprise that needs receive the carrier index list of PDSCH, can further include corresponding PDSCH configuration information.The PDSCH configuration information can comprise the pilot power of this channel etc.
Table 2
UE, according to the content of RRC dedicated signaling, receives PDSCH on carrier wave 1,2,3.Now, the PDCCH on carrier wave 2 will be dispatched the PDSCH of carrier wave 1,2,3, and the PDCCH of UE monitoring carrier wave 2 receives data according to the control information on it on the PDSCH of carrier wave 1,2,3.
In addition, if the carrier wave while of PDCCH is monitored in configuration, UE has mass data to need the CA transmission, and base station also can utilize a RRC dedicated signaling, when the PDCCH of configuration/activation UE monitoring carrier wave 2, configure simultaneously/activate the PDSCH on UE reception carrier 1,2,3.
Below with MAC CE configuration carrier wave, for exemplifying embodiment bis-, technical scheme of the present invention is described.
The scene of the present embodiment and embodiment mono-is similar, but single configuration carrier wave does not adopt the RRC dedicated signaling, but adopts MAC CE.
Corresponding MAC head and the form of MAC CE are as follows:
MAC head has two kinds of designs:
(1) after introducing " monitoring PDCCH member carrier indication MAC CE " and " receiving PDSCH member carrier indication MAC CE ", need two of definition independently LCID (for example: use reserved LCID value) to indicate corresponding MAC CE be that member carrier is indicated MAC CE; If member carrier is indicated the variable-length of MAC CE or can oneself be indicated, adopt MAC form one; Otherwise, adopt MAC form two;
(2) with in MAC SDU, corresponding to two R bits indications of sub of other MAC CE and MAC SDU, " monitoring PDCCH member carrier indication MAC CE " and the existence of " reception PDSCH member carrier is indicated MAC CE ", economize the MAC head of two bytes.
MAC CE form has two kinds of possible forms:
Shown in Figure 11, form 1 can adopt the MAC CE of regular length, and the length of MAC CE depends on that current area or LTE-A system allow at most the carrier number N of the polymerization of support:
N<=8, the length of this MAC CE is decided to be 1Byte;
8<N<=16, the length of this MAC CE is decided to be 2Byte;
In form 1, with the form of bitmap, to the LTE-A terminal, indicate and need the carrier wave activated.The BITMAP of first byte is corresponding to carrier wave 1～8, if the BITMAP of second byte corresponding in carrier wave 9～16...... bitmap, certain bit is set to 1, terminal need to activate the monitoring to the corresponding carrier wave of this bit; Otherwise terminal is not monitored the corresponding carrier wave of this bit.
Form 1 also can adopt the MAC CE of variable-length, and its length is by corresponding MAC head indication.
Corresponding to the scene of embodiment 1, the bitmap of " monitoring PDCCH member carrier indication MAC CE " is 1 byte, and content is ' 01000000 '; The bitmap that " receives PDSCH member carrier indication MAC CE " is 1 byte, and content is ' 11100000 '.
Shown in Figure 12, form 2 adopts the MAC CE of variable-length, and the length of MAC CE, by the indication of E bit, if the E bit is 1, represents that the content of next byte also belongs to this MAC CE; If the E bit is 0, mean that current byte is last byte of this MAC CE.
In form 2, except the E bit, other territories are bitmap.The BITMAP of first byte is corresponding to carrier wave 1～7, if the BITMAP of second byte corresponding in carrier wave 8～14...... bitmap, certain bit is set to 1, terminal need to activate the monitoring to the corresponding carrier wave of this bit; Otherwise terminal is not monitored the corresponding carrier wave of this bit.
Corresponding to the scene of embodiment 1, the bitmap of " monitoring PDCCH member carrier indication MAC CE " is 1 byte, and content is ' 00100000 '; The bitmap that " receives PDSCH member carrier indication MAC CE " is 1 byte, and content is ' 01110000 '.
Below for the embodiment tri-explanation embodiment of the present invention, configure the process of PUCCH carrier waves or carrier wave set.
Identical with the scene of the first two embodiment, when network configuration after the PDCCH set that need to monitor of UE, network can also be configured for by following two kinds of modes carrier wave or the carrier wave set of the PUCCH of uplink feedback:
1) base station is by dedicated signaling, and as RRC or MAC CE, configuration/activation is for carrier wave or the carrier wave set of the PUCCH of uplink feedback, and concrete methods of realizing and the first two embodiment are similar, are not repeated herein;
2) UE is according to the monitoring PDCCH that activated set, and according to the binding relationship of the uplink and downlink carrier wave of setting, configuration/activate can be for carrier wave or the carrier wave set of the PUCCH of uplink feedback.
If employing method 2), at first need to determine the binding relationship of uplink and downlink carrier wave in community, in the scene of the present embodiment, suppose in community to exist 4 up-link carriers, 4 descending carriers, binding relationship separately is as shown in the table:
| Up-link carrier | The descending carrier of binding |
| Up-link carrier 1 | Descending carrier 1 |
| Up-link carrier 2 | Descending carrier 2 |
| Up-link carrier 3 | Descending carrier 3 |
| Up-link carrier 4 | Descending carrier 4 |
Table 3
When the PDCCH of network activation UE monitored downstream carrier 2, its corresponding uplink feedback control information will be by the PUCCH transmission of up-link carrier 2 so.
Shown in Figure 13, the device of a kind of allocating carriers in carrier aggregation system of the embodiment of the present invention comprises: carrier wave determining unit 131 and dispensing unit 132.
Carrier wave determining unit 131, for this terminal, need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data;
When the described channel that need to monitor bear control information is physical downlink control channel PDCCH, the described channel that need to receive the bearing downlink data is Physical Downlink Shared Channel PDSCH,
Carrier wave determining unit 131, need to monitor the carrier set information and the carrier set information that needs to receive PDSCH of PDCCH for determining terminal;
Carrier wave dispensing unit 132 can comprise: first carrier dispensing unit and the second carrier wave dispensing unit.
The first carrier dispensing unit, for monitoring the carrier set of PDCCH by send the first dedicated signaling to terminal for this terminal configuration;
The second carrier wave dispensing unit, for by send the second dedicated signaling to this terminal, for this terminal configuration, receiving the carrier set of PDSCH,
Wherein, contain the carrier set information that this terminal need to be monitored PDCCH in the first dedicated signaling, contain the carrier set information that this terminal need to receive PDSCH in the second dedicated signaling.The first dedicated signaling is RRC signaling or MAC CE; The second dedicated signaling is RRC signaling or MAC CE.
Described dispensing unit, can need to monitor the carrier set of PDCCH and the carrier set that this terminal configuration need to receive PDSCH for this terminal configuration by send the 4th dedicated signaling to terminal, wherein, contain this terminal in the 4th dedicated signaling and need to monitor the carrier set information of PDCCH, and this terminal need to receive the carrier set information of PDSCH.
Can further include: deexcitation unit 133, for deexcitation described be carrier set and the described carrier set that needs to receive PDSCH that the needs of this terminal configuration are monitored PDCCH, or other carrier set.
Can further include:
The 3rd carrier wave dispensing unit, for by send the 3rd dedicated signaling to this terminal, for this terminal configuration, using the carrier set of PUCCH, wherein, contain the carrier set information that this terminal need to be used PUCCH in the 3rd dedicated signaling.
Said units in this device can be positioned at base station side.
Perhaps, can further include the 3rd carrier wave determining unit, can be positioned at end side, also can be positioned at base station side, being used for is after terminal configuration need to be monitored the carrier set of PDCCH at the first carrier dispensing unit, utilize the corresponding relation of the uplink and downlink carrier wave arranged, and the described carrier set that needs to monitor PDCCH, determine the carrier set that needs to use PUCCH.
Described carrier set that need to monitor PDCCH and the described carrier set that needs to receive PDSCH intersect or are non-intersect.
First carrier dispensing unit and the second carrier wave dispensing unit send described the first dedicated signaling and described the second dedicated signaling to this terminal simultaneously; Or first carrier dispensing unit and the second carrier wave dispensing unit send described the first dedicated signaling and described the second dedicated signaling to this terminal according to sequencing; Or first carrier dispensing unit and the second carrier wave dispensing unit send described the second dedicated signaling and described the first dedicated signaling to this terminal according to sequencing.
Also further comprise: scheduling unit, can be positioned at base station side, carry out the monitoring of PDCCH and the reception of corresponding PDSCH for dispatching this terminal in same subframe.
Can further include: the interference coordination unit, can be positioned at base station side, for according to the area interference situation, for this terminal reconfigures the carrier wave that needs to monitor PDCCH, realize Inter-Cell Interference Coordination ICIC.
When the carrier wave of the monitoring of the needs for this terminal configuration PDCCH is the DRX state, be that the carrier wave of the needs reception PDSCH of this terminal configuration is the DRX state.
The embodiment of the present invention is in multicarrier system, and the number of times of PDCCH blind check can, by the carrier set of the dedicated signaling PDCCH that configurating terminal need to be monitored respectively, the carrier set that needs receive PDSCH, can be reduced in base station.And, further configure PDCCH and PDSCH and dispatch in same subframe, can also further carry out the ICIC of PDCCH, in addition, by binding uplink and downlink carrier wave relation, can indirectly find corresponding PUCCH carrier wave by the PDCCH carrier wave, saved signaling consumption, realized simple.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (28)
1. the method for an allocating carriers in carrier aggregation system, is characterized in that, the method comprises the following steps:
Base station by terminal, send this terminal need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data, the carrier wave and needing that need to monitor the channel of bear control information for this terminal configuration receives the carrier wave of the channel of bearing downlink data.
When the described channel that need to monitor bear control information is physical downlink control channel PDCCH, the described channel that need to receive the bearing downlink data is Physical Downlink Shared Channel PDSCH,
The carrier set information and the carrier set information that need to receive the channel of bearing downlink data of the channel of bear control information need to be monitored by send this terminal to terminal in base station, comprising:
The carrier set information that base station need to be monitored the carrier set information of physical downlink control channel PDCCH and need receive the Physical Downlink Shared Channel PDSCH of bearing downlink data by sent this terminal to terminal, for this terminal configuration need to be monitored the carrier wave of PDCCH and need to receive the carrier wave of PDSCH.
2. method according to claim 1, is characterized in that, the carrier set information that base station need to be monitored the carrier set information of PDCCH and need to receive PDSCH by sent this terminal to terminal comprises:
Base station need to be monitored the carrier set of PDCCH by send the first dedicated signaling to terminal for this terminal configuration, and need to receive the carrier set of PDSCH by send the second dedicated signaling to this terminal for this terminal configuration, wherein,
Contain this terminal in the first dedicated signaling and need to monitor the carrier set information of PDCCH, contain the carrier set information that this terminal need to receive PDSCH in the second dedicated signaling.
3. method according to claim 1, is characterized in that, the carrier set information that base station need to be monitored the carrier set information of PDCCH and need to receive PDSCH by sent this terminal to terminal comprises:
Base station need to be monitored the carrier set of PDCCH and the carrier set that this terminal configuration need to receive PDSCH by send the 4th dedicated signaling to terminal for this terminal configuration, wherein,
Contain this terminal in the 4th dedicated signaling and need to monitor the carrier set information of PDCCH, and this terminal need to receive the carrier set information of PDSCH.
4. according to the method in claim 2 or 3, it is characterized in that, the method further comprises:
Base station need to be used the carrier wave of Physical Uplink Control Channel PUCCH by send the 3rd dedicated signaling to this terminal for this terminal configuration, wherein, contains the carrier set information that this terminal need to be used PUCCH in the 3rd dedicated signaling.
5. method according to claim 2, is characterized in that, in base station, by the first dedicated signaling, is that after terminal configuration need to be monitored the carrier set of PDCCH, the method further comprises:
The corresponding relation of the uplink and downlink carrier wave that described terminal utilization arranges, and the described carrier set that needs to monitor PDCCH, determine the carrier set that needs to use PUCCH.
6. method according to claim 1, is characterized in that, described carrier set that need to monitor PDCCH and the described carrier set that needs to receive PDSCH intersect or be non-intersect.
7. method according to claim 2, is characterized in that, the control unit MAC CE that the first dedicated signaling is radio resource control RRC signaling or media access control; The second dedicated signaling is RRC signaling or MAC CE.
8. method according to claim 3, is characterized in that, described the 4th dedicated signaling is RRC signaling or MAC CE.
9. method according to claim 4, is characterized in that, base station sends described the first dedicated signaling and described the second dedicated signaling to this terminal simultaneously; Or
Base station sends described the first dedicated signaling and described the second dedicated signaling to this terminal according to sequencing; Or
Base station sends described the second dedicated signaling and described the first dedicated signaling to this terminal according to sequencing.
10. method according to claim 1, is characterized in that, the method further comprises: this terminal of base station scheduling is carried out the monitoring of PDCCH and the reception of corresponding PDSCH in same subframe.
11. method according to claim 1, is characterized in that, the method further comprises:
Inter-Cell Interference Coordination ICIC, according to the area interference situation, for this terminal reconfigures the carrier wave that needs to monitor PDCCH, is realized in base station.
12. method according to claim 1, is characterized in that, when the carrier wave of the monitoring of the needs for this terminal configuration PDCCH is non-lasting reception DRX state, is that the carrier wave of the needs reception PDSCH of this terminal configuration is the DRX state.
13. method according to claim 1, is characterized in that, the method further comprises:
The base station deexcitation is described is carrier set and the described carrier set that needs to receive PDSCH of the needs monitoring PDCCH of this terminal configuration.
14. the device of an allocating carriers in carrier aggregation system, is characterized in that, this device comprises:
The carrier wave determining unit, for this terminal, need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data;
Dispensing unit, by to terminal, send this terminal need to monitor bear control information channel carrier set information and need to receive the carrier set information of the channel of bearing downlink data, the carrier wave and needing that need to monitor the channel of bear control information for this terminal configuration receives the carrier wave of the channel of bearing downlink data.
When the described channel that need to monitor bear control information is physical downlink control channel PDCCH, the described channel that need to receive the bearing downlink data is Physical Downlink Shared Channel PDSCH,
Described carrier wave determining unit, need to monitor the carrier set information and the carrier set information that needs to receive PDSCH of PDCCH for determining terminal;
Described dispensing unit, for carrier set information from this terminal to this terminal that need to monitor the carrier set information of PDCCH and need receive PDSCH by send, for this terminal configuration need to be monitored the carrier wave of PDCCH and need to receive the carrier wave of PDSCH.
15. device according to claim 14, is characterized in that, described dispensing unit comprises:
The first carrier dispensing unit, for monitoring the carrier set of PDCCH by send the first dedicated signaling to terminal for this terminal configuration;
The second carrier wave dispensing unit, for by send the second dedicated signaling to this terminal, for this terminal configuration, receiving the carrier set of PDSCH,
Wherein, contain the carrier set information that this terminal need to be monitored PDCCH in the first dedicated signaling, contain the carrier set information that this terminal need to receive PDSCH in the second dedicated signaling.
16. device according to claim 14, is characterized in that, described dispensing unit, and for by send the 4th dedicated signaling to terminal, for this terminal configuration, monitoring the carrier set of PDCCH and the carrier set that this terminal configuration need to receive PDSCH, wherein,
Contain this terminal in the 4th dedicated signaling and need to monitor the carrier set information of PDCCH, and this terminal need to receive the carrier set information of PDSCH.
17. according to the described device of claim 15 or 16, it is characterized in that, also further comprise:
The 3rd carrier wave dispensing unit, for by send the 3rd dedicated signaling to this terminal, for this terminal configuration, using the carrier set of PUCCH, wherein, contain the carrier set information that this terminal need to be used PUCCH in the 3rd dedicated signaling.
18. according to the described device of claim 15 or 16, it is characterized in that,
The 3rd carrier wave determining unit, being used for is after terminal configuration need to be monitored the carrier set of PDCCH at the first carrier dispensing unit, utilize the corresponding relation of the uplink and downlink carrier wave arranged, and the described carrier set that needs to monitor PDCCH, determine the carrier set that needs to use PUCCH.
19. device according to claim 14, is characterized in that, described carrier set that need to monitor PDCCH and the described carrier set that needs to receive PDSCH intersect or are non-intersect.
20. device according to claim 15, is characterized in that, the first dedicated signaling is RRC signaling or MAC CE; The second dedicated signaling is RRC signaling or MAC CE.
21. device according to claim 16, is characterized in that, described the 4th dedicated signaling is RRC signaling or MAC CE.
22. device according to claim 17, is characterized in that, first carrier dispensing unit and the second carrier wave dispensing unit send described the first dedicated signaling and described the second dedicated signaling to this terminal simultaneously; Or
First carrier dispensing unit and the second carrier wave dispensing unit send described the first dedicated signaling and described the second dedicated signaling to this terminal according to sequencing; Or
First carrier dispensing unit and the second carrier wave dispensing unit send described the second dedicated signaling and described the first dedicated signaling to this terminal according to sequencing.
23. device according to claim 14, is characterized in that, also further comprises:
Scheduling unit carries out the monitoring of PDCCH and the reception of corresponding PDSCH for dispatching this terminal in same subframe.
24. device according to claim 14, is characterized in that, also further comprises:
The interference coordination unit, for according to the area interference situation, for this terminal reconfigures the carrier wave that needs to monitor PDCCH, realize Inter-Cell Interference Coordination ICIC.
25. device according to claim 14, is characterized in that, when the carrier wave of the monitoring of the needs for this terminal configuration PDCCH is the DRX state, is that the carrier wave of the needs reception PDSCH of this terminal configuration is the DRX state.
26. device according to claim 14, is characterized in that, also further comprises:
The deexcitation unit, for deexcitation described be carrier set and the described carrier set that needs to receive PDSCH that the needs of this terminal configuration are monitored PDCCH.
27. device according to claim 14, is characterized in that, described carrier wave determining unit and described dispensing unit are positioned at base station side.
28. device according to claim 18, is characterized in that, described the 3rd carrier wave determining unit is positioned at end side or base station side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100874141A CN101932070B (en) | 2009-06-19 | 2009-06-19 | Method and device for allocating carriers in carrier aggregation system |
| PCT/CN2010/073470 WO2010145454A1 (en) | 2009-06-19 | 2010-06-02 | Method and apparatus for configuring carriers in carrier aggregation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100874141A CN101932070B (en) | 2009-06-19 | 2009-06-19 | Method and device for allocating carriers in carrier aggregation system |
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| Publication Number | Publication Date |
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| CN101932070A CN101932070A (en) | 2010-12-29 |
| CN101932070B true CN101932070B (en) | 2013-12-11 |
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| CN2009100874141A Active CN101932070B (en) | 2009-06-19 | 2009-06-19 | Method and device for allocating carriers in carrier aggregation system |
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| CN (1) | CN101932070B (en) |
| WO (1) | WO2010145454A1 (en) |
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|---|---|---|---|---|
| PT3324568T (en) | 2009-06-15 | 2019-12-30 | Guangdong Oppo Mobile Telecommunications Corp Ltd | System and method for sharing a control channel for carrier aggregation |
| DK2564547T3 (en) | 2010-04-30 | 2018-09-03 | Guangdong Oppo Mobile Telecommunications Corp Ltd | SYSTEM AND PROCEDURE FOR SHARING A CONTROL CHANNEL FOR SUSTAINABLE GOVERNMENT |
| US8792376B2 (en) | 2011-01-11 | 2014-07-29 | Samsung Electronics Co., Ltd. | Secondary carrier activation/deactivation method and apparatus for mobile communication system supporting carrier aggregation |
| KR101776873B1 (en) | 2011-01-11 | 2017-09-11 | 삼성전자 주식회사 | Method and apparatus for setting uplink transmission power in mobile communication system |
| CN102098148B (en) * | 2011-02-12 | 2013-07-31 | 电信科学技术研究院 | Data processing method and equipment under carrier aggregation system |
| CN103516475B (en) * | 2012-06-28 | 2017-12-01 | 中国电信股份有限公司 | Method for cell interference coordination and heterogeneous network in heterogeneous network |
| EP3065484B1 (en) * | 2013-10-31 | 2020-04-29 | Nec Corporation | Wireless communication system, base station device, and wireless terminal |
| US10028279B2 (en) | 2014-12-19 | 2018-07-17 | Futurewei Technologies, Inc. | Communications in a wireless network for carrier selection and switching |
| US10411847B2 (en) | 2015-04-10 | 2019-09-10 | Futurewei Technologies, Inc. | Communications with carrier selection, switching and measurements |
| CN108811052B (en) * | 2017-04-28 | 2021-05-14 | 电信科学技术研究院 | A downlink control channel detection and reception method, terminal and network side device |
| CN109150445B (en) * | 2017-06-16 | 2021-08-24 | 大唐移动通信设备有限公司 | Downlink control information sending and receiving method and device |
| CN110636611B (en) * | 2018-06-21 | 2023-01-13 | 大唐移动通信设备有限公司 | Method and device for monitoring control channel |
| CN111132330B (en) * | 2018-11-01 | 2024-04-09 | 北京三星通信技术研究有限公司 | PDCCH monitoring method, PDCCH monitoring device, electronic equipment and computer-readable storage medium |
| CN118119023A (en) | 2018-11-01 | 2024-05-31 | 北京三星通信技术研究有限公司 | PDCCH monitoring method, PDCCH monitoring device, electronic equipment and computer-readable storage medium |
| CN113163413B (en) * | 2020-01-22 | 2023-09-01 | 华为技术有限公司 | Wireless communication method, terminal device and network device |
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| WO2010145454A1 (en) | 2010-12-23 |
| CN101932070A (en) | 2010-12-29 |
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