CN102123501A - Determination method and equipment of ACK/NAK (acknowledgement character/negative acknowledge) resources - Google Patents
Determination method and equipment of ACK/NAK (acknowledgement character/negative acknowledge) resources Download PDFInfo
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Abstract
The embodiment of the invention discloses a determination method and equipment of ACK/NAK (acknowledgement character/negative acknowledge) resources. Under the condition that ACK/NAK resources are reserved in a downlink carrier and a plurality of uplink carriers, terminal equipment can determine an ACK/NAK channel in the ACK/NAK resources; and the ACK/NAK channel is used for transmitting an ACK/NAK message so as to guarantee normal realization of communication services.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of definite method and apparatus of ACK/NAK resource.
Background technology
General Cyclic Prefix (3rd GenerationPartnership Project Long Term Evolution normal Cyclic Prefix at third generation partner program long evolving system, 3GPP LTE normalCP) in, a time slot (slot) comprises 7 OFDM symbols (Orthogonal FrequencyDivision Multiplexing symbol, OFDM symbol), accordingly, (ACKnowledge Character/Negative Acknowledge Character, transmission means ACK/NAK) as shown in Figure 1 for acknowledge character/non-acknowledge character.
Wherein, [S0, S1 ..., S6] represent 7 OFDM symbol among the slot, d represents the ACK/NAK symbol of required transmission.
If 1 ACK/NAK bit, then d is two-phase PSK signal (Binary Phase ShiftKeying, constellation point BPSK).
If 2 ACK/NAK bit, then d is quarternary phase-shift keying (QPSK) signal (Quadrature Phase ShiftKeying, constellation point QPSK).
OFDM symbol[S0, S1, S5, S6] be used for transferring ACK/NAK data d.
Wd=[Wd (0) Wd (1) Wd (2) Wd (3)] be the ACK/NAK data division spreading code (Orthogonal Cover, OC).
In the LTE system, Wd can value OCd0=[1111], OCd1=[1-11-1] or OCd2=[1-1-11].
R is a pilot signal, and r=1.
OFDM symbol[S2, S3, S4] be used to transmit pilot tone r.
Wr=[Wr (0) Wr (1) Wr (2)] be pilot portion spreading code (orthogonal cover, OC).
In the LTE system, Wr can value OCr0=[111], OCr1=[1 e
J2 π/3e
J4 π/3] or OCr2=[1 e
J4 π/3e
J2 π/3].
A subframe is made up of two slot.
Two slot that are transmitted in a subframe of ACK/NAK go up and repeat, as shown in Figure 1.
Evolution Cyclic Prefix (3rd GenerationPartnership Project Long Term Evolution extended Cyclic Prefix at third generation partner program long evolving system, 3GPP LTEextended CP) in, a slot comprises 6 OFDM symbol, accordingly, the transmission means of ACK/NAK as shown in Figure 2.
Wherein, [S0, S1 ..., S5] represent 6 OFDM symbol among the slot, d represents the ACK/NAK symbol of required transmission.
If 1 ACK/NAK bit, then d is the constellation point of BPSK.
If 2 ACK/NAK bit, then d is the constellation point of QPSK.
OFDM symbol[S0, S1, S4, S5] be used for transferring ACK/NAK data d.
Wd=[Wd (0) Wd (1) Wd (2) Wd (3)] be the spreading code of ACK/NAK data division.
In LTE, Wd can value OCd0=[1111]; Perhaps OCd2=[1-1-11].
R is a pilot signal, and r=1.
OFDM symbol[S2, S3] be used to transmit pilot tone r.Wr=[Wr (0) Wr (1) Wr (2)] be the spreading code of pilot portion.
In LTE, Wr can value OCr0=[11] or OCr2=[1-1].A subframe is made up of two slot.
Two slot that are transmitted in a subframe of ACK/NAK go up and repeat, as shown in Figure 2.
In 3GPP LTE system, (Resource Block, RB) (Resource Element RE) forms a Resource Block, and each RE is 15kHz on frequency domain by 12 Resource Units.
To the ACK/NAK transmission, length of transmission is 12 sequence (sequence) on the RB in an OFDM symbol.
This sequence is by different cyclic shifts (Cyclic Shift, CS) 12 sequence mutually orthogonals of back generation.
Therefore, an ACK/NAK channel on RB is determined by a CS and an OC.
In 3GPP LTE, (Physical DownlinkControl Channel, CCE index PDCCH) determines the ACK/NAK channel by Physical Downlink Control Channel.
(Control Channel Element CCE) forms PDCCH, and each CCE has a logical control channel unit number (CCE index) by a plurality of control channels unit.
On one or more CCE, a DL grant, the transmission that is used to indicate the downlink data PDSCH that is dispatched can be transmitted in the base station.Wherein, one or more CCE has continuous logic CCE index.
UE determines an ACK/NAK channel according to DL grant to deserved minimum logic CCE index after receiving DL grant, be used for transferring ACK/NAK information.
In 3GPP LTE, each CCE has a unique ACK/NAK channel corresponding with it.
In the process that realizes the embodiment of the invention, the applicant finds that there is following problem at least in prior art:
At senior third generation partner program long evolving system (3rd Generation PartnershipProject Long Term Evolution Advanced, 3GPP LTE-A) in, carrier aggregation (CarrierAggregation, CA) will be supported, in such cases, a plurality of descending or up-link carriers can be grouped together in together.
If a descending carrier is reserved the ACK/NAK resource on a plurality of up-link carriers, so, UE need determine that an ACK/NAK channel is used for transferring ACK/NAK information, but does not have such scheme in the prior art.
Summary of the invention
The embodiment of the invention provides a kind of definite method and apparatus of ACK/NAK resource, solution is worked as a descending carrier and is reserved under the situation of ACK/NAK resource in a plurality of up-link carriers, how UE determines an ACK/NAK channel in a plurality of ACK/NAK resources, be used for the problem of transferring ACK/NAK message.
For achieving the above object, the embodiment of the invention provides a kind of definite method of ACK/NAK resource on the one hand, comprising:
Terminal equipment identification receives the pairing ACK/NAK channel resource of each descending carrier of information;
When terminal equipment identification receive information a descending carrier correspondence during many ACK/NAK channel resources, terminal equipment selects corresponding ACK/NAK channel to send ACK/NAK message according to the ACK/NAK resource selection rule under default many ACK/NAK channel scene.
On the other hand, the embodiment of the invention also provides a kind of terminal equipment, comprising:
Module is set, is used for ACK/NAK resource selection rule under many ACK/NAK channel scene being set at described terminal equipment;
Identification module is used to discern the pairing ACK/NAK channel resource of each descending carrier of the information of receiving;
Select module, be used for when identification module identification receive information a descending carrier correspondence during many ACK/NAK channel resources, according to the ACK/NAK resource selection rule that is provided with under the set many ACK/NAK channel scene of module, select corresponding ACK/NAK channel to send ACK/NAK message.
On the other hand, the embodiment of the invention also provides a kind of base station, comprising:
Configuration module is used to each descending carrier that corresponding Your Majesty's row carrier wave and time up-link carrier are set;
Sending module is used for sending the pairing Your Majesty's row of each descending carrier carrier information that configuration module disposed to terminal equipment.
On the other hand, the embodiment of the invention also provides a kind of definite method of ACK/NAK resource, comprising:
Terminal equipment receives the Indication message that the base station sends, and obtains pairing ACK/NAK resource selection rule under many ACK/NAK channel scene of wherein carrying;
When terminal equipment identification receive information a descending carrier correspondence during many ACK/NAK channel resources, terminal equipment selects corresponding ACK/NAK channel to send ACK/NAK message according to the ACK/NAK resource selection rule under the many ACK/NAK channel scene that gets access to.
On the other hand, the embodiment of the invention also provides a kind of terminal equipment, comprising:
Receiver module is used to receive the Indication message that the base station sends;
Acquisition module is used for obtaining pairing ACK/NAK resource selection rule under many ACK/NAK channel scene that the received Indication message of receiver module carries;
Identification module is used to discern the pairing ACK/NAK channel resource of each descending carrier of the information of receiving;
Select module, be used for when identification module identification receive information a descending carrier correspondence during many ACK/NAK channel resources, according to the ACK/NAK resource selection rule that is provided with under the set many ACK/NAK channel scene of module, select corresponding ACK/NAK channel to send ACK/NAK message.
On the other hand, the embodiment of the invention also provides a kind of base station, comprising:
Configuration module is used to dispose pairing ACK/NAK resource selection rule under many ACK/NAK channel scene;
Sending module is used for sending pairing ACK/NAK resource selection rule under many ACK/NAK channel scene that configuration module disposed to terminal equipment.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme of the embodiment of the invention, can in a plurality of up-link carriers, reserve under the situation of ACK/NAK resource at a descending carrier, make terminal equipment can in a plurality of ACK/NAK resources, determine an ACK/NAK channel, be used for transferring ACK/NAK message, guaranteed the normal realization of communication service.
Description of drawings
Fig. 1 is the schematic diagram of a kind of ACK transmission means in the prior art;
Fig. 2 is the schematic diagram of another kind of ACK transmission means in the prior art;
Fig. 3 is the schematic flow sheet of definite method of a kind of ACK/NAK resource of embodiment of the invention proposition;
Fig. 4 is the schematic flow sheet of definite method of the another kind of ACK/NAK resource of embodiment of the invention proposition;
Fig. 5 is a kind of carrier aggregation under the concrete application scenarios of embodiment of the invention proposition and the scene schematic diagram of ACK/NAK resource reservation;
A kind of UE that Fig. 6 proposes for the embodiment of the invention sends the schematic flow sheet of ACK/NAK message;
Fig. 7 is the structural representation of a kind of terminal equipment of embodiment of the invention proposition;
Fig. 8 is the structural representation of a kind of base station of embodiment of the invention proposition;
Fig. 9 is the structural representation of the another kind of terminal equipment of embodiment of the invention proposition;
Figure 10 is the structural representation of the another kind of base station of embodiment of the invention proposition.
Embodiment
In 3GPP LTE/LTE-A system, UE need (whether transportblock, TB) ACK/NAK of feedback correctly receive in order to this TB of notice eNodeB (base station) to each transmission block that receives.
If UE feeding back ACK (perhaps eNodeB detects ACK), eNodeB thinks that this TB is correctly received by UE so, and eNodeB can give this UE scheduling new TB.If UE feeds back NAK (perhaps eNodeB detects NAK), eNodeB thinks that this TB is not correctly received by UE so, and eNodeB can retransmit this TB.
Each TB has CRC bits.Pass through if CRC detects, UE thinks that this TB correctly receives so, so feeding back ACK.If CRC detects failure, UE thinks that this TB does not correctly receive so, therefore feeds back NAK.
In 3GPP LTE, UE need determine an ACK/NAK channel, is used for transferring ACK/NAK message.The ACK/NAK channel can by the sequence number of the control channel Elements C CE of deserved down control channel PDCCH is obtained.
In 3GPP LTE, the corresponding unique upstream band of each downstream bands.The ACK/NAK channel of this downstream bands is present in pairing unique upstream band, the corresponding unique ACK/NAK channel of each CCE of down control channel.
In LTE-A, carrier aggregation technology will be used, and a plurality of continuous or discrete frequency bands can be grouped together in together.If a descending carrier is reserved the ACK/NAK resource on a plurality of up-link carriers, promptly during may the be corresponding a plurality of ACK/NAK channel of the CCE of the PDCCH of a descending carrier, UE need determine to be used for transferring ACK/NAK message by an ACK/NAK channel in these a plurality of ACK/NAK channels.
But, determine that by UE the method for ACK/NAK channel does not propose at present.Therefore, at this problem, the embodiment of the invention proposes under carrier aggregation, if the corresponding CCE index of a plurality of ACK/NAK channels is arranged, UE determines the method for employed ACK/NAK channel.
As shown in Figure 3, the schematic flow sheet of definite method of a kind of ACK/NAK resource that proposes for the embodiment of the invention, this method specifically may further comprise the steps:
Step S301, pairing ACK/NAK resource selection rule under many ACK/NAK channel scene is set in terminal equipment.
In the practical application scene; concrete setting person can be the regular setting operation that terminal equipment is carried out by base station side; also can in advance rule be set in software in the terminal equipment production process, such variation can't influence protection scope of the present invention.
Wherein, the ACK/NAK resource selection rule under above-mentioned many ACK/NAK channel scene specifically can be selected according to the carrier frequency of the residing up-link carrier of ACK/NAK channel, specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
Moreover; because can there be the up-link carrier of a plurality of correspondences in a descending carrier; therefore; can carry out the division of primary and secondary up-link carrier; also can further add the reach the standard grade selection foundation of carrier wave of primary and secondary in the ACK/NAK resource selection rule under above-mentioned many ACK/NAK channel scene; the information of mentioned here primary and secondary up-link carrier can send to terminal equipment by the base station; concrete send mode can not influence protection scope of the present invention; in this case, ACK/NAK resource selection rule is specially:
If terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that terminal equipment identification receives information were in corresponding Your Majesty's row carrier wave and time up-link carrier respectively, terminal equipment selected the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many available ACK/NAK channel resources of a descending carrier that terminal equipment identification receives information all were in corresponding up-link carrier, terminal equipment selected the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
Step S302, terminal equipment identification receive the pairing ACK/NAK channel resource of each descending carrier of information.
When terminal equipment identification receive the descending carrier of information only corresponding during an ACK/NAK channel resource, execution in step S303;
When terminal equipment identification receive information the descending carrier correspondence during many ACK/NAK channel resources, execution in step S304.
Step S303, carry out the transmission of ACK/NAK message according to existing procedure.
Step S304, terminal equipment select corresponding ACK/NAK channel to send ACK/NAK message according to the ACK/NAK resource selection rule under default many ACK/NAK channel scene.
In definite method of above-mentioned ACK/NAK resource, ACK/NAK resource selection rule is predefined in terminal equipment, the embodiment of the invention has also proposed a kind of definite method of ACK/NAK resource, the Indication message that issues by the reception base station obtains corresponding ACK/NAK resource selection rule, the idiographic flow schematic diagram may further comprise the steps as shown in Figure 4:
Step S401, terminal equipment receive the Indication message that the base station sends, and obtain pairing ACK/NAK resource selection rule under many ACK/NAK channel scene of wherein carrying.
Wherein, the ACK/NAK resource selection rule under above-mentioned many ACK/NAK channel scene specifically can be selected according to the carrier frequency of the residing up-link carrier of ACK/NAK channel, specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
Moreover; because can there be the up-link carrier of a plurality of correspondences in a descending carrier; therefore; can carry out the division of primary and secondary up-link carrier; also can further add the reach the standard grade selection foundation of carrier wave of primary and secondary in the ACK/NAK resource selection rule under above-mentioned many ACK/NAK channel scene; the information of mentioned here primary and secondary up-link carrier can send to terminal equipment by the base station; concrete send mode can be in aforesaid Indication message; also can be to send by other message; concrete send mode can not influence protection scope of the present invention; in this case, ACK/NAK resource selection rule is specially:
If terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that terminal equipment identification receives information were in corresponding Your Majesty's row carrier wave and time up-link carrier respectively, terminal equipment selected the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many available ACK/NAK channel resources of a descending carrier that terminal equipment identification receives information all were in corresponding up-link carrier, terminal equipment selected the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
Step S402, terminal equipment identification receive the pairing ACK/NAK channel resource of each descending carrier of information.
When terminal equipment identification receive the descending carrier of information only corresponding during an ACK/NAK channel resource, execution in step S403;
When terminal equipment identification receive information the descending carrier correspondence during many ACK/NAK channel resources, execution in step S404.
Step S403, carry out the transmission of ACK/NAK message according to existing procedure.
Step S404, terminal equipment select corresponding ACK/NAK channel to send ACK/NAK message according to the ACK/NAK resource selection rule under the many ACK/NAK channel scene that gets access to.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme of the embodiment of the invention, can in a plurality of up-link carriers, reserve under the situation of ACK/NAK resource at a descending carrier, make terminal equipment can in a plurality of ACK/NAK resources, determine an ACK/NAK channel, be used for transferring ACK/NAK message, guaranteed the normal realization of communication service.
Below, the application scenarios in conjunction with concrete describes the technical scheme that the embodiment of the invention proposed.
The technical scheme that the embodiment of the invention proposed is applied in the scene of LTE-A carrier aggregation, if a descending carrier is reserved the ACK/NAK resource in a plurality of up-link carriers, how UE determines an ACK/NAK channel in a plurality of ACK/NAK resources, be used for transferring ACK/NAK message.
Fig. 5 provides the example of a kind of carrier aggregation and ACK/NAK resource reservation.In this carrier aggregation system, 3 descending carriers (DL CC) and 3 up-link carriers (UL CC) are arranged.
Wherein, DL CC 1 reserves the ACK/NAK resource in UL CC 1; DL CC 2 reserves the ACK/NAK resource in UL CC 1 and 2; DL CC 3 reserves the ACK/NAK resource in UL CC 2 and 3.
Each arrow in Fig. 5 is represented the mapping relations of the ACK/NAK channel of a CCE index on the DL CC x to the UL CC y.
In actual applications, the flow process of UE transmission ACK/NAK message may further comprise the steps as shown in Figure 6:
Step S601, the UE PDCCH on DL CC x detects DL grant.
Step S602, UE determine to need to use the pairing ACK/NAK channel of CCE on the DL CC x to send ACK/NAK message.
Step S603, UE determine the CCE index I that DL grant uses.
Step S604, UE determine pairing all the ACK/NAK channels of the CCE index I of DL CC x.
If the corresponding a plurality of ACK/NAK channels of the CCE index I of step S605 DL CC x, and UE have the ability a plurality of ACK/NAK channels in any one send ACK/NAK message, UE selects an ACK/NAK channel according to specific rule in a plurality of ACK/NAK channels so, is used for transferring ACK/NAK message.
Among the main settlement steps to deal S605 of the technical scheme that the embodiment of the invention proposed, how UE selects an ACK/NAK channel according to specific rule in a plurality of ACK/NAK channels, be used for transferring ACK/NAK message.
For convenience of description, in subsequent embodiment of the present invention, suppose that a CCEindex on the DL CC is mapped to an ACK/NAK channel at the most on a UL CC.But thought of the present invention is not limited to this hypothesis.
Scheme one: if the corresponding a plurality of ACK/NAK channels of the CCE index I of DL CC x, each ACK/NAK channel is on a UL CC, and UE have the ability a plurality of ACK/NAK channels in any one send ACK/NAK message, UE uses an ACK/NAK Channel Transmission ACK/NAK message in a plurality of ACK/NAK channels so, the selective rule of ACK/NAK channel is redefined for the ACK/NAK channel of selecting on the minimum up-link carrier of carrier frequency and carries out the transmission of ACK/NAK message in UE, therefore, it is minimum finally to be used for the carrier frequency of UL CC at ACK/NAK channel place of transferring ACK/NAK message.
Use Fig. 5 to be example, suppose that UE receives DL grant on DL CC 2, and UE determines that the ACK/NAK channel of the CCE index I correspondence at the DL grant place on the use DL CC 2 sends ACK/NAK message.The CCE index I that supposes DL CC 2 shines upon on UL CC 1 and obtains ACK/NAK channel 1, and mapping obtains ACK/NAK channel 2 on UL CC 2.UE uses the ACK/NAK channel 1 transferring ACK/NAK message on the UL CC1.
Scheme two: if the corresponding a plurality of ACK/NAK channels of the CCE index I of DL CC x, each ACK/NAK channel is on a UL CC, and UE have the ability a plurality of ACK/NAK channels in any one send ACK/NAK message, UE uses an ACK/NAK Channel Transmission ACK/NAK message in a plurality of ACK/NAK channels so, the selective rule of ACK/NAK channel is redefined for the ACK/NAK channel of selecting on the highest up-link carrier of carrier frequency and carries out the transmission of ACK/NAK message in UE, therefore, it is the highest finally to be used for the carrier frequency of UL CC at ACK/NAK channel place of transferring ACK/NAK message.
Use Fig. 5 to be example, suppose that UE receives DL grant on DL CC 2, and UE determines that the ACK/NAK channel of the CCE index I correspondence at the DL grant place on the use DL CC 2 sends ACK/NAK message.The CCE index I that supposes DL CC 2 shines upon on UL CC 1 and obtains ACK/NAK channel 1, and mapping obtains ACK/NAK channel 2 on UL CC 2.UE uses the ACK/NAK channel 2 transferring ACKs/NAK message on the UL CC2.
Scheme three: if the corresponding a plurality of ACK/NAK channels of the CCE index I of DL CC x, each ACK/NAK channel is on a UL CC, and UE have the ability a plurality of ACK/NAK channels in any one send ACK/NAK message, UE uses an ACK/NAK Channel Transmission ACK/NAK message in a plurality of ACK/NAK channels so, the selective rule of ACK/NAK channel is that UE obtains by the Indication message that receives the base station, concrete rule can be to select the ACK/NAK channel on the minimum or the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message, therefore, it is minimum or the highest finally to be used for the carrier frequency of UL CC at ACK/NAK channel place of transferring ACK/NAK message.Wherein, the concrete form of Indication message can be high-level signaling or other form of message that is sent to UE by base station side, because Indication message can be that the base station is issued specific UE separately, therefore, can determine the selective rule of different ACK/NAK channels respectively to different UE, that is to say that some UE can use the UL CC of high carrier frequency, some UE can use the UL CC of lowest carrier frequency.
Use Fig. 5 to be example, suppose that the base station sends the selective rule of ACK/NAK channel to UE by high-level signaling, and UE receives DL grant on DL CC 2, and UE determines that the ACK/NAK channel of the CCE index I correspondence at the DL grant place on the use DL CC 2 sends ACK/NAK message.The CCE index I that supposes DL CC 2 shines upon on UL CC 1 and obtains ACK/NAK channel 1, and mapping obtains ACK/NAK channel 2 on UL CC2.If high layer information indication UE uses the UL CC of high carrier frequency, UE uses the ACK/NAK channel 2 transferring ACKs/NAK message on the UL CC 2.If high-level signaling indication UE uses the UL CC of lowest carrier frequency, UE uses the ACK/NAK channel 1 transferring ACK/NAK message on the UL CC 1.
Scheme four: each DL CC has the main UL CC (primary linked UL CC) of a unique correspondence.And except primary linked UL CC, each DL CC can also have one or more secondarylinked UL CC.If the corresponding a plurality of ACK/NAK channels of the CCE index I of DL CC x, each ACK/NAK channel is on a UL CC, one of them UL CC is the primary linkedUL CC of DL CC x, and remaining UL CC is the secondary linked UL CC of DL CC x.
If UE have the ability a plurality of ACK/NAK channels in any one send ACK/NAK message, UE uses an ACK/NAK Channel Transmission ACK/NAK message in a plurality of ACK/NAK channels so, the selective rule of ACK/NAK channel is redefined for the ACK/NAK channel of selecting on Your Majesty's row carrier wave and carries out the transmission of ACK/NAK message in UE, or the selective rule of the ACK/NAK channel that obtains by the Indication message that receives the base station of UE is to select the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message, the ACK/NAK channel that so, finally is used for transferring ACK/NAK message is at the primary linked of DL CC x UL CC.The primary linked UL CC of each DL CC is indicated by high-level signaling or other message.
Scheme five: each DL CC has the main UL CC (primary linked ULCC) of a unique correspondence at the most.Except primary linked UL CC, each DL CC can also have one or more secondarylinked UL CC.If the corresponding a plurality of ACK/NAK channels of the CCE index I of DL CC x, each ACK/NAK channel is on a UL CC, one of them UL CC is the primary linkedUL CC of DL CC x, remaining UL CC is the secondary linked UL CC of DL CC x, UE uses an ACK/NAK Channel Transmission ACK/NAK message in a plurality of ACK/NAK channels so, this ACK/NAK channel the primary linked UL CC of DL CC x on.
If the corresponding a plurality of ACK/NAK channels of the CCE index I of DL CC x, each ACK/NAK channel is on a UL CC, UL CC all be the secondary linked UL CC of DL CC x, UE uses an ACK/NAK Channel Transmission ACK/NAK message in a plurality of ACK/NAK channels so, the selective rule of ACK/NAK channel is redefined for the ACK/NAK channel of selecting on the minimum or the highest inferior up-link carrier of carrier frequency and carries out the transmission of ACK/NAK message in UE, or the selective rule of the ACK/NAK channel that obtains by the Indication message that receives the base station of UE is to select the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message, the carrier frequency of UL CC at ACK/NAK channel place that so, finally is used for transferring ACK/NAK message is minimum or the highest.The primary linked UL CC of each DL CC is indicated by high-level signaling or other message.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme of the embodiment of the invention, can in a plurality of up-link carriers, reserve under the situation of ACK/NAK resource at a descending carrier, make terminal equipment can in a plurality of ACK/NAK resources, determine an ACK/NAK channel, be used for transferring ACK/NAK message, guaranteed the normal realization of communication service.
In order to realize the technical scheme of the embodiment of the invention, the embodiment of the invention also provides corresponding apparatus, and corresponding technical scheme as shown in Figure 3 provides a kind of terminal equipment and a kind of base station respectively.
Wherein, the structural representation of terminal equipment specifically comprises as shown in Figure 7:
Module 71 is set, is used to be provided with the ACK/NAK resource selection rule under many ACK/NAK channel scene.
Wherein, the ACK/NAK resource selection rule under the set many ACK/NAK channel scene of module 71 is set, specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
Identification module 72 is used to discern the pairing ACK/NAK channel resource of each descending carrier of the information of receiving;
Select module 73, be used for when identification module 72 identification receive information a descending carrier correspondence during many ACK/NAK channel resources, according to the ACK/NAK resource selection rule that is provided with under the set many ACK/NAK channel scene of module 71, select corresponding ACK/NAK channel to send ACK/NAK message.
In concrete application scenarios, above-mentioned terminal equipment also comprises receiver module 74, is used to receive the pairing Your Majesty's row of each descending carrier carrier information that the base station sends;
Accordingly, in such cases, the ACK/NAK resource selection rule under the set many ACK/NAK channel scene of module 71 is set, also comprises:
If receiver module 74 receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that identification module 72 identification receives information are in corresponding Your Majesty's row carrier wave and time up-link carrier respectively, select the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If receiver module 74 receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that identification module 72 is discerned the information that receives all are in corresponding up-link carrier, select the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
On the other hand, the structural representation of base station specifically comprises as shown in Figure 8:
Configuration module 81 is used to each descending carrier that corresponding Your Majesty's row carrier wave and time up-link carrier are set;
Sending module 82 is used for sending the pairing Your Majesty's row of each descending carrier carrier information that configuration module 81 is disposed to terminal equipment.
Corresponding technical scheme as shown in Figure 4 provides another kind of terminal equipment and another kind of base station respectively.Wherein, the structural representation of terminal equipment specifically comprises as shown in Figure 9:
Wherein, the ACK/NAK resource selection rule under many ACK/NAK channel scene that acquisition module 92 is obtained specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
In concrete application scenarios, receiver module 91, also be used to receive the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, the pairing Your Majesty's row of each descending carrier carrier information is carried in the Indication message, or is carried at the base station in other message that terminal equipment sends;
ACK/NAK resource selection rule under many ACK/NAK channel scene that acquisition module 92 is obtained also comprises:
If receiver module 91 receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that identification module 93 identification receives information are in corresponding Your Majesty's row carrier wave and time up-link carrier respectively, select the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If receiver module 91 receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that identification module 93 is discerned the information that receives all are in corresponding up-link carrier, select the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
On the other hand, the structural representation of base station specifically comprises as shown in figure 10:
Sending module 102 is used for pairing ACK/NAK resource selection rule under many ACK/NAK channel scene that terminal equipment transmission configuration module 101 is disposed.
In concrete application scenarios,
Sending module 102 also is used for sending the pairing Your Majesty's row of each descending carrier carrier information that configuration module 101 is disposed to terminal equipment.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme of the embodiment of the invention, can in a plurality of up-link carriers, reserve under the situation of ACK/NAK resource at a descending carrier, make terminal equipment can in a plurality of ACK/NAK resources, determine an ACK/NAK channel, be used for transferring ACK/NAK message, guaranteed the normal realization of communication service.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, the technical scheme of the embodiment of the invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) each implements the described method of scene to carry out the embodiment of the invention.
It will be appreciated by those skilled in the art that accompanying drawing is a preferred schematic diagram of implementing scene, module in the accompanying drawing or flow process might not be that the enforcement embodiment of the invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in the scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of implementing scene just to description.
More than disclosed only be the several concrete enforcement scene of the embodiment of the invention, still, the embodiment of the invention is not limited thereto, any those skilled in the art can think variation all should fall into the traffic limits scope of the embodiment of the invention.
Claims (16)
1. definite method of an ACK/NAK resource is characterized in that, comprising:
Terminal equipment identification receives the pairing ACK/NAK channel resource of each descending carrier of information;
When the identification of described terminal equipment receive information a descending carrier correspondence during many ACK/NAK channel resources, described terminal equipment selects corresponding ACK/NAK channel to send ACK/NAK message according to the ACK/NAK resource selection rule under default many ACK/NAK channel scene.
2. the method for claim 1 is characterized in that, described terminal equipment identification receives before the pairing ACK/NAK channel resource of each descending carrier of information, also comprises:
ACK/NAK resource selection rule under many ACK/NAK channel scene is set in described terminal equipment.
3. method as claimed in claim 2 is characterized in that, the ACK/NAK resource selection rule under described default many ACK/NAK channel scene specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
4. method as claimed in claim 2 is characterized in that, the ACK/NAK resource selection rule under described default many ACK/NAK channel scene also comprises:
If described terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that described terminal equipment identification receives information were in corresponding Your Majesty's row carrier wave and inferior up-link carrier respectively, described terminal equipment selected the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If described terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that described base station sends, and when pairing many available ACK/NAK channel resources of a descending carrier that described terminal equipment identification receives information all were in corresponding up-link carrier, described terminal equipment selected the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
5. a terminal equipment is characterized in that, comprising:
Module is set, is used for ACK/NAK resource selection rule under many ACK/NAK channel scene being set at described terminal equipment;
Identification module is used to discern the pairing ACK/NAK channel resource of each descending carrier of the information of receiving;
Select module, be used for when the identification of described identification module receive information a descending carrier correspondence during many ACK/NAK channel resources, according to the described ACK/NAK resource selection rule that is provided with under the set many ACK/NAK channel scene of module, select corresponding ACK/NAK channel to send ACK/NAK message.
6. terminal equipment as claimed in claim 5 is characterized in that, the described ACK/NAK resource selection rule that is provided with under the set many ACK/NAK channel scene of module specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
7. terminal equipment as claimed in claim 5 is characterized in that, also comprises receiver module, is used to receive the pairing Your Majesty's row of each descending carrier carrier information that the base station sends;
The described ACK/NAK resource selection rule that is provided with under the set many ACK/NAK channel scene of module also comprises:
If described receiver module receives the pairing Your Majesty's row of each descending carrier carrier information that described base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that described identification module identification receives information are in corresponding Your Majesty's row carrier wave and inferior up-link carrier respectively, select the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If described receiver module receives the pairing Your Majesty's row of each descending carrier carrier information that described base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that described identification module identification receives information all are in corresponding up-link carrier, select the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
8. a base station is characterized in that, comprising:
Configuration module is used to each descending carrier that corresponding Your Majesty's row carrier wave and time up-link carrier are set;
Sending module is used for sending the pairing Your Majesty's row of each descending carrier carrier information that described configuration module disposes to terminal equipment.
9. definite method of an ACK/NAK resource is characterized in that, comprising:
Terminal equipment receives the Indication message that the base station sends, and obtains pairing ACK/NAK resource selection rule under many ACK/NAK channel scene of wherein carrying;
When the identification of described terminal equipment receive information a descending carrier correspondence during many ACK/NAK channel resources, described terminal equipment selects corresponding ACK/NAK channel to send ACK/NAK message according to the ACK/NAK resource selection rule under the many ACK/NAK channel scene that gets access to.
10. method as claimed in claim 9 is characterized in that, the ACK/NAK resource selection rule under described many ACK/NAK channel scene specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
11. method as claimed in claim 9 is characterized in that, the ACK/NAK resource selection rule under described many ACK/NAK channel scene also comprises:
If described terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that described base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that described terminal equipment identification receives information were in corresponding Your Majesty's row carrier wave and inferior up-link carrier respectively, described terminal equipment selected the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If described terminal equipment receives the pairing Your Majesty's row of each descending carrier carrier information that described base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that described terminal equipment identification receives information all were in corresponding up-link carrier, described terminal equipment selected the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message;
Wherein, the pairing Your Majesty's row of each descending carrier that described base station sends carrier information is carried in the described Indication message, or is carried at described base station in other message that described terminal equipment sends.
12. a terminal equipment is characterized in that, comprising:
Receiver module is used to receive the Indication message that the base station sends;
Acquisition module is used for obtaining pairing ACK/NAK resource selection rule under many ACK/NAK channel scene that the received Indication message of described receiver module carries;
Identification module is used to discern the pairing ACK/NAK channel resource of each descending carrier of the information of receiving;
Select module, be used for when the identification of described identification module receive information a descending carrier correspondence during many ACK/NAK channel resources, according to the described ACK/NAK resource selection rule that is provided with under the set many ACK/NAK channel scene of module, select corresponding ACK/NAK channel to send ACK/NAK message.
13. terminal equipment as claimed in claim 12 is characterized in that, the ACK/NAK resource selection rule under many ACK/NAK channel scene that described acquisition module obtained specifically comprises:
Select the ACK/NAK channel on the minimum up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message; Or,
Select the ACK/NAK channel on the highest up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
14. terminal equipment as claimed in claim 12, it is characterized in that, described receiver module, also be used to receive the pairing Your Majesty's row of each descending carrier carrier information that the base station sends, the pairing Your Majesty's row of described each descending carrier carrier information is carried in the described Indication message, or is carried at described base station in other message that described terminal equipment sends;
ACK/NAK resource selection rule under many ACK/NAK channel scene that described acquisition module obtained also comprises:
If described receiver module receives the pairing Your Majesty's row of each descending carrier carrier information that described base station sends, and when pairing many ACK/NAK channel resources of a descending carrier that described identification module identification receives information are in corresponding Your Majesty's row carrier wave and inferior up-link carrier respectively, select the ACK/NAK channel on Your Majesty's row carrier wave to carry out the transmission of ACK/NAK message;
If described receiver module receives the pairing Your Majesty's row of each descending carrier carrier information that described base station sends, and when pairing available many ACK/NAK channel resources of a descending carrier that described identification module identification receives information all are in corresponding up-link carrier, select the ACK/NAK channel on the minimum or the highest inferior up-link carrier of carrier frequency to carry out the transmission of ACK/NAK message.
15. a base station is characterized in that, comprising:
Configuration module is used to dispose pairing ACK/NAK resource selection rule under many ACK/NAK channel scene;
Sending module is used for sending pairing ACK/NAK resource selection rule under many ACK/NAK channel scene that described configuration module disposes to terminal equipment.
16. base station as claimed in claim 15 is characterized in that,
Described configuration module also is used to each descending carrier that corresponding Your Majesty's row carrier wave and time up-link carrier are set;
Described sending module also is used for sending the pairing Your Majesty's row of each descending carrier carrier information that described configuration module disposes to terminal equipment.
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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Effective date of registration: 20210603 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |