CN102355325A - PUCCH resource mapping method and apparatus thereof - Google Patents

PUCCH resource mapping method and apparatus thereof Download PDF

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CN102355325A
CN102355325A CN2011102302591A CN201110230259A CN102355325A CN 102355325 A CN102355325 A CN 102355325A CN 2011102302591 A CN2011102302591 A CN 2011102302591A CN 201110230259 A CN201110230259 A CN 201110230259A CN 102355325 A CN102355325 A CN 102355325A
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pdcch
subframe
pucch
pucch resources
cluster
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CN102355325B (en
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沈祖康
林亚男
赵锐
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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Abstract

The invention relates to the communication field, and discloses a PUCCH (physical uplink control channel) resource mapping method and an apparatus thereof used for effectively reducing a quantity of reserved PUCCH resources in a system. The method comprises the following steps: setting resource configuration information which is used for indicating a PUCCH resource which is corresponding to each E-PDCCH cluster which is configured by the system, according to the resource configuration information, UE and a base station respectively determine at least one E-PDCCH resource corresponding to each E-PDCCH cluster which is configured by the system, and transmit UCI on an E-PDCCH resource which exists PDCCH transmission and is corresponding to the E-PDCCH cluster. In this way, flexible PUCCH resource configuration can be provided for an Enhanced PDCCH, simultaneously the quantity of the reserved PUCCH resources in the system can be effectively reduced, and an uplink resource utilization rate is raised.

Description

PUCCH resource mapping method and device
Technical Field
The present invention relates to the field of communications, and in particular, to a PUCCH resource mapping method and apparatus.
Background
In an LTE (long term evolution) system, a PDCCH (physical downlink control channel) is transmitted in each radio subframe and forms a TDM (time division multiplexing) relationship with a PDSCH (physical downlink shared channel) that transmits downlink data. Referring to fig. 1, the PDCCH is transmitted through the first N OFDM (Orthogonal Frequency Division Multiplexing) symbols of one downlink subframe, where N may have values of 1, 2, 3, and 4, and N — 4 is only allowed to occur in a system with a system bandwidth of 1.4 MHz.
With the continuous evolution of the LTE-Advanced (upgraded long term evolution) standard and the appearance of COMP (Coordinated Multiple Point) transmission, MU-MIMO (multi-User-MIMO, multi-User Multiple input Multiple output) enhancement and other application scenarios, the number of users to be served in a cell is greatly increased, and thus the capacity requirement for a downlink control channel is greatly increased. For example, a possible scenario of COMP is that a macro base station and a plurality of distributed RRHs (remote radio heads) logically form a cell, and the coverage area and the number of users accessing the cell are both greatly increased compared to the original LTE system; meanwhile, the number of users served in a cell is greatly increased due to the wide use of the enhanced MU-MIMO, so that higher requirements are put forward on the capacity of the PDCCH, and the existing LTE PDCCH design cannot meet the requirements.
To solve the above mentioned problem of PDCCH resource limitation and capacity insufficiency, one existing solution is: referring to fig. 2, an Enhanced PDCCH, referred to as an Enhanced PDCCH, is transmitted in PRB units in a PDSCH region in one downlink subframe, and as shown in fig. 2, a conventional PDCCH is referred to as a Legacy PDCCH.
For the structure of the Enhanced PDCCH, there is currently a search space design scheme for a resource cluster based on the Enhanced PDCCH, that is, multiple consecutive PRB pairs are classified into one cluster, which is called Enhanced PDCCH cluster. For example, referring to fig. 3 and 4, preferably, one Enhanced PDCCHcluster includes 4 PRB pairs, and one PDCCH of the UE can be transmitted in only one cluster. The PDCCH of only one UE may be transmitted in one cluster, or the PDCCH of a plurality of UEs may be transmitted. The PRB position occupied by the UE for transmitting the PDCCH in one cluster is related to the aggregation level, and the UE determines the resource cluster monitored in one subframe according to a predefined rule or configuration information of a base station.
For an LTE FDD (LTE frequency division duplex) system, after completing demodulation and decoding of data on a downlink subframe n-4, the UE feeds back a signaling indicating whether the data on the downlink subframe needs to be retransmitted or not, i.e., feeds back ACK/NACK information, to the base station on the uplink subframe n.
For an LTE TDD (LTE time division duplex) system, a UE may feed back ACK/NACK information corresponding to multiple downlink subframes in one uplink subframe, that is, after the UE completes demodulation and decoding of data on a downlink subframe n-K, it feeds back a signaling indicating whether the data on the downlink subframe needs to be retransmitted or not to a base station on the uplink subframe n, that is, feeds back ACK/NACK information, where K belongs to K, and a value of the set K is related to uplink and downlink configurations and specific subframe numbers of the system, as shown in table 1, where multiple downlink subframes corresponding to the same uplink subframe for ACK/NACK feedback are hereinafter referred to as "feedback window":
table 1K: { k } is a function of0，k1，ΛkM-1}for TDD
Figure BDA0000082611590000021
Wherein, M is the maximum value of K, that is, the maximum number of downlink subframes capable of feeding back corresponding ACK/NACK information in the uplink subframes. In addition, the radio frames are arranged in sequence, that is, if the last subframe in the radio frame a is K, the first subframe in the radio frame a +1 is K +1, table 1 only gives the case of K for each uplink subframe by taking one radio frame as an example, where n-K < 0 indicates the downlink subframe in the previous radio frame.
In the LTE system, a PDSCH (physical uplink control channel) for downlink dynamic scheduling is fed back on a PUCCH (physical uplink control channel) resourceWhen ACK/NACK information of (2) or ACK/NACK information corresponding to a PDCCH for instructing SPS (semi-persistent scheduling) resource release is fed back, the transmission format of a PUCCH resource generally used is PUCCH format 1a/1 b. In the above scheme, the number of PUCCH resources is denoted as
Figure BDA0000082611590000031
The number is determined according to the number of the resource CCE (Control channel element) occupied by PDCCH, and the maximum quantity of PDCCH resource is usually much smaller than the quantity of users in the cell, and PDCCH resource->After the mapping of the PUCCH resources, the number of the reserved maximum dynamic PUCCH resources in the system is only required to be equal to the maximum number of the PDCCH resources, and the PUCCH resource reservation is not required to be carried out for the maximum number of users in a cell.
In determining the number of PUCCH resources
Figure BDA0000082611590000032
The UE may then determine from the number
Figure BDA0000082611590000033
Determining a corresponding PUCCH resource, including: determining an OC (orthogonal) sequence number, a CS (cyclic shift) sequence number and an occupied PRB (physical resource block) number used when transmitting the PUCCH, wherein the determination method of the parameters is as follows according to TS 36.211:
the OC sequence number is determined as follows:
Figure BDA0000082611590000034
the CS sequence number is determined as follows:
Figure BDA0000082611590000035
wherein,
Figure BDA0000082611590000041
c = 3 normal cp 2 extended cp
in the time slot 0, the time slot is,
<math> <mrow> <msubsup> <mi>n</mi> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>&prime;</mo> </msubsup> <mrow> <mo>(</mo> <msub> <mi>n</mi> <mi>s</mi> </msub> <mo>)</mo> </mrow> <mo>=</mo> <mfenced open='{' close=''> <mtable> <mtr> <mtd> <msubsup> <mi>n</mi> <mi>PUCCH</mi> <mrow> <mo>(</mo> <mn>1</mn> <mo>,</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msubsup> </mtd> <mtd> <mi>if</mi> <msubsup> <mi>n</mi> <mi>PUCCH</mi> <mrow> <mo>(</mo> <mn>1</mn> <mo>,</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msubsup> <mo>&lt;</mo> <mi>c</mi> <mo>&CenterDot;</mo> <msubsup> <mi>N</mi> <mi>cs</mi> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </msubsup> <mo>/</mo> <msubsup> <mi>&Delta;</mi> <mi>shift</mi> <mi>PUCCH</mi> </msubsup> </mtd> </mtr> <mtr> <mtd> <mrow> <mo>(</mo> <msubsup> <mi>n</mi> <mi>PUCCH</mi> <mrow> <mo>(</mo> <mn>1</mn> <mo>,</mo> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>)</mo> </mrow> </msubsup> <mo>-</mo> <mi>c</mi> <mo>&CenterDot;</mo> <msubsup> <mi>N</mi> <mi>cs</mi> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </msubsup> <mo>/</mo> <msubsup> <mi>&Delta;</mi> <mi>shift</mi> <mi>PUCCH</mi> </msubsup> <mo>)</mo> </mrow> <mi>mod</mi> <mrow> <mo>(</mo> <mi>c</mi> <mo>&CenterDot;</mo> <msubsup> <mi>N</mi> <mi>sc</mi> <mi>RB</mi> </msubsup> <mo>/</mo> <msubsup> <mi>&Delta;</mi> <mi>shift</mi> <mi>PUCCH</mi> </msubsup> <mo>)</mo> </mrow> </mtd> <mtd> <mi>otherwise</mi> </mtd> </mtr> </mtable> </mfenced> </mrow> </math>
on the time slot 1, the time slot is divided into a plurality of time slots,
<math> <mrow> <msub> <mi>h</mi> <mover> <mi>p</mi> <mo>~</mo> </mover> </msub> <mo>=</mo> <mrow> <mo>(</mo> <msubsup> <mi>n</mi> <mover> <mi>p</mi> <mo>~</mo> </mover> <mo>&prime;</mo> </msubsup> <mrow> <mo>(</mo> <msub> <mi>n</mi> <mi>s</mi> </msub> <mo>-</mo> <mn>1</mn> <mo>)</mo> </mrow> <mo>+</mo> <mi>d</mi> <mo>)</mo> </mrow> <mi>mod</mi> <mrow> <mo>(</mo> <msup> <mi>cN</mi> <mo>&prime;</mo> </msup> <mo>/</mo> <msubsup> <mi>&Delta;</mi> <mi>shift</mi> <mi>PUCCH</mi> </msubsup> <mo>)</mo> </mrow> <mo>,</mo> </mrow> </math>
in the case of the normal CP, d is 2, in the case of the extended CP, d is 0,
for cyclically shifting intervals, by highAnd (5) layer configuration.
However, the prior art discloses a related processing scheme only for mapping of legacy PDCCH resource- > PUCCH resource, and does not provide a specific processing scheme for mapping of enhanced PDCCH- > PUCCH resource.
Disclosure of Invention
The embodiment of the invention provides a PUCCH resource mapping method and a PUCCH resource mapping device, which are used for effectively reducing the quantity of reserved PUCCH resources in a system when an Enhanced PDCCH is adopted.
The embodiment of the invention provides the following specific technical scheme:
a method of PUCCH resource mapping, comprising:
determining N E-PDCCH cluster configured in a downlink subframe in a system, wherein N is a positive integer and is more than or equal to 1;
receiving resource configuration information sent by a network side, wherein the resource configuration information is used for indicating PUCCH resources corresponding to an E-PDCCH cluster configured by a system;
determining K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information, wherein K is a positive integer and is more than or equal to 1;
performing PDCCH detection in the N E-PDCCH cluster, and confirming that the E-PDCCH cluster transmitted by the PDCCH exists;
and transmitting a corresponding uplink control signal to a network side on a PUCCH resource corresponding to the E-PDCCH cluster in which the PDCCH is transmitted.
A method of PUCCH resource mapping, comprising:
determining N E-PDCCH cluster configured in a downlink subframe in a system, wherein N is a positive integer and is more than or equal to 1;
sending preset resource configuration information to a terminal side, wherein the resource configuration information is used for indicating PUCCH resources corresponding to the E-PDCCH cluster configured by the system;
determining K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information, wherein K is a positive integer and is more than or equal to 1;
transmitting at least one PDCCH within at least one E-PDCH cluster of the N E-PDCCH clusters;
and receiving the uplink control signal sent by the terminal side on PUCCH resources corresponding to the E-PDCCH cluster for transmitting the PDCCH.
An apparatus of PUCCH resource mapping, comprising:
a first determining unit, configured to determine N E-pdcchs configured in a downlink subframe in a system, where N is a positive integer and N is greater than or equal to 1;
a receiving unit, configured to receive resource configuration information sent by a network side, where the resource configuration information is used to indicate a PUCCH resource corresponding to an E-PDCCH cluster configured by a system;
a second determining unit, configured to determine, according to the resource configuration information, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system, where K is a positive integer and is greater than or equal to 1;
a detection unit, configured to perform PDCCH detection within the N E-PDCH clusters, and confirm that there is an E-PDCCH cluster transmitted by a PDCCH;
and the sending unit is used for transmitting a corresponding uplink control signal to the network side on the PUCCH resource corresponding to the E-PDCCH cluster with PDCCH transmission.
An apparatus of PUCCH resource mapping, comprising:
a first determining unit, configured to determine N E-pdcchs configured in a downlink subframe in a system, where N is a positive integer and N is greater than or equal to 1;
a sending unit, configured to send preset resource configuration information to a terminal side, where the resource configuration information is used to indicate PUCCH resources corresponding to an E-PDCCH cluster configured by a system, and send at least one PDCCH in at least one E-PDCH cluster of the N E-PDCCH clusters;
a second determining unit, configured to determine, according to the resource configuration information, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system, where K is a positive integer and is greater than or equal to 1;
and the receiving unit is used for receiving the uplink control signals sent by the terminal side on PUCCH resources corresponding to the E-PDCCH cluster for transmitting the PDCCH.
In summary, the present invention provides a PUCCH resource mapping method corresponding to an Enhanced PDCCH, which specifically includes: and setting resource configuration information, wherein the resource configuration information is used for indicating PUCCH resources corresponding to the E-PDCCH cluster configured by the system, and the UE and the base station respectively determine at least one PUCCH resource corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information and transmit UCI on the PUCCH resource corresponding to the E-PDCCH cluster with PDCCH transmission. Therefore, more flexible PUCCH resource configuration can be provided for the Enhanced PDCCH, and the number of the reserved PUCCH resources in the system is effectively reduced, so that the uplink transmission efficiency is improved.
Drawings
Fig. 1 is a schematic diagram illustrating a multiplexing relationship between a control region and a data region in a next downlink subframe in the prior art;
FIG. 2 is a diagram illustrating an Enhanced PDCCH structure in the prior art;
FIG. 3 is a schematic diagram of a search space of an Enhanced PDCCH in the prior art;
FIG. 4 is a schematic structural diagram of an Enhanced PDCCH cluster in the embodiment of the present invention;
FIG. 5 is a diagram of a communication system architecture in an embodiment of the present invention;
FIG. 6 is a flowchart illustrating PUCCH resource mapping performed by a UE according to an embodiment of the present invention;
fig. 7 is a schematic diagram of PUCCH resource mapping performed by a base station in the embodiment of the present invention;
FIG. 8 is a functional block diagram of a UE according to an embodiment of the present invention;
fig. 9 is a functional structure diagram of a base station in an embodiment of the present invention.
Detailed Description
In a communication system, when an Enhanced PDCCH is adopted, in order to effectively reduce the number of PUCCH resources reserved in the system, the embodiment of the present invention provides a mapping method for PUCCH resources of the Enhanced PDCCH. The method specifically comprises the following steps: and setting resource configuration information, wherein the resource configuration information is used for indicating PUCCH resources corresponding to each E-PDCCH cluster configured by the system, and the UE and the base station respectively determine at least one PUCCH resource corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information and transmit UCI on the PUCCH resources corresponding to the E-PDCCH cluster with PDCCH transmission.
In the embodiment of the present invention, UCI corresponding to one PDCCH may be sent by using only one PUCCH resource, or may be sent by using multiple PUCCH resources, that is, one PDCCH may correspond to at least one PUCCH resource, for example, one PDCCH may correspond to only one PUCCH resource, or may correspond to two or more PUCCH resources.
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 5, in the embodiment of the present invention, there are a plurality of base stations and UEs, and a base station may send a downlink signaling to a UE through an Enhanced PDCCH, and accordingly, the UE needs to determine a PUCCH resource corresponding to the Enhanced PDCCH to feed back a corresponding UCI.
Referring to fig. 6, in the embodiment of the present invention, a detailed procedure for the UE to perform PUCCH resource mapping is as follows:
step 600: the UE determines N Enhanced PDCCHcluster, namely E-PDCCH cluster, configured in a downlink subframe in the system, wherein N is a positive integer and is more than or equal to 1.
When the UE is accessed to the network, the N E-PDCCH cluster configured in one downlink subframe in the system is determined according to the notification of the network side.
Step 610: and the UE receives resource configuration information sent by the base station, wherein the resource configuration information is used for indicating PUCCH resources corresponding to the E-PDCCH cluster configured by the system.
In this embodiment, any one E-PDCCH cluster may be mapped to one or more PUCCH resources, and the resource configuration information is the number of the PUCCH resource corresponding to each E-PDCCH cluster configured by the system. In practical application, the resource configuration information set by the base station for different UEs may be the same or different, that is, when the base station configures the same E-PDCCH cluster for different UEs, the numbers of PUCCH resources corresponding to the same E-PDCCH cluster may be the same or different for different UEs.
Step 620: and the UE determines the numbers of K PUCCH resources respectively corresponding to the N E-PDCCHcluster configured by the system in each downlink subframe of the M downlink subframes according to the obtained resource configuration information, wherein M and K are positive integers, M is more than or equal to 1, K is more than or equal to 1, and the M downlink subframes use the same uplink subframe to transmit corresponding uplink control signals.
For an LTE FDD system, M is 1, and for an LTE TDD system, the value of M is related to TDD uplink and downlink configuration and a specific uplink subframe.
In step 620, after the UE determines the PUCCH resource number, the UE further determines the PUCCH transmission number according to the PUCCH resource numberSpreading sequence number and physical resource block number, wherein the UE adopts when determining the spreading sequence number
Figure BDA0000082611590000081
The (cyclic shift interval) may be configured by the base station, or may be constant at 1.
Step 630: and the UE is configured in the system in N E-PDCCH cluster in one downlink subframe to carry out PDCCH detection and confirm that the E-PDCCH cluster transmitted by the PDCCH exists.
And the UE determines which E-PDCCH cluster the network side carries out PDCCH transmission on through PDCCH detection, and correspondingly, the UE carries out uplink feedback on PUCCH resources corresponding to the E-PDCCH cluster with PDCCH transmission.
Step 640: the UE transmits a corresponding UCI (Uplink Control Signal) to the base station on a PUCCH resource corresponding to the E-PDCCH cluster in which the PDCCH is transmitted.
In the above embodiment, the PDCCH transmitted on any one E-PDCCH cluster may be a PDCCH for scheduling PDSCH transmission, or a PDCCH for instructing release of downlink SPS. The UCI sent by the UE on the PUCCH resource corresponding to any E-PDCCH cluster may be used to indicate the PDCCH for scheduling PDSCH transmission, or indicate whether the PDCCH for releasing downlink SPS is received correctly.
In the above embodiment, the execution manner of step 620 is different according to different practical application environments, and may be specifically divided into, but not limited to, the following two cases:
the first case is: and the UE respectively determines the number of a corresponding PUCCH resource in each subframe of the M downlink subframes aiming at the N E-PDCCH cluster configured by the system according to preset resource configuration information, namely K is 1. The method specifically comprises the following steps:
the resource configuration information comprises N E-PDCCH cluster configured by the system, and the number of one PUCCH resource corresponding to each subframe in the M downlink subframes is respectively. Correspondingly, the UE can directly determine the number of one PUCCH resource corresponding to each E-PDCCH cluster in each subframe of the M downlink subframes according to the obtained resource configuration information; or,
the resource configuration information comprises N E-PDCCH cluster configured by the system, and the number of one PUCCH resource corresponding to each subframe in M downlink subframes. Correspondingly, the UE can respectively determine the number of a PUCCH resource corresponding to each of N E-PDCCH cluster configured by the system in one subframe of M downlink subframes according to the obtained resource configuration information, and then determine the number of a PUCCH resource corresponding to each E-PDCCH cluster in other M-1 subframes according to the obtained number of the N PUCCH resources and a preset rule; or,
the resource configuration information comprises one E-PDCCH cluster in N E-PDCCH clusters configured by the system, and the number of one PUCCH resource corresponding to each subframe in M downlink subframes. Correspondingly, the UE can determine the number of one PUCCH resource corresponding to the E-PDCCH cluster in each subframe of the M downlink subframes according to the obtained resource configuration information, and then determine the number of one PUCCH resource corresponding to other N-1E-PDCCH clusters in each subframe of the M downlink subframes according to the obtained number of the M PUCCH resources and a preset rule; or,
the resource configuration information comprises one E-PDCCH cluster in N E-PDCCH clusters configured by the system, and the number of a corresponding PUCCH resource in one subframe in M downlink subframes. Correspondingly, the UE can determine the number of a PUCCH resource corresponding to the E-PDCCH cluster in one subframe of the M downlink subframes according to the obtained resource configuration information, and then determine a PUCCH resource corresponding to each of the N E-PDCCH clusters configured by the system in each subframe of the M downlink subframes according to the obtained number of the PUCCH resource and a preset rule.
The specific implementation of the first case will be described in detail below using example a and example b, respectively.
In the embodiment a, in an LTE FDD system, M is 1, that is, the UE needs to perform UCI feedback for a PDCCH received in a downlink subframe in an uplink subframe, and in this case, when step 620 is executed, the UE needs to determine a corresponding PUCCH resource for each E-PDCCH cluster configured by the system according to preset resource configuration information;
for example, if N E-PDCCH clusters are configured in the system, and the numbers of the E-PDCCH clusters are E-PDCCH-1, E-PDCCH-2, and so forth, and the numbers of the corresponding PUCCH resources are PUCCH-1, PUCCH-2, and so forth, and PUCCH-N, respectively, then if the UE determines that there is PDCCH transmission in E-PDCCH-N of the downlink subframe, the UE determines that the number of the PUCCH resource corresponding to the PDCCH transmission is PUCCH-N, where N is greater than or equal to 1 and less than or equal to N. Here, the numbers PUCCH-1, PUCCH-2 of the N PUCCH resources, PUCCH-N means PUCCH-NThe numbers can be different from each other or partially or completely the same; the transmission format of the PUCCH resource may be PUCCH format 1a/1b defined by 3gpp e-UTRA.
In the above embodiment a, the resource configuration information received by the UE from the base station may include the number of the PUCCH resource corresponding to each E-PDCCH cluster configured by the system, specifically:
in the first mode, one PUCCH resource is explicitly configured for N E-PDCCHcluster configured by the system respectively in the resource configuration information; for example, for any one E-PDCCH cluster, the number of one PUCCH resource corresponding to the E-PDCCH cluster is notified.
Then, in step 620, the UE may directly determine, according to the obtained resource configuration information, a number of a PUCCH resource corresponding to each E-PDCCH cluster configured by the system.
In the resource configuration information, one PUCCH resource is explicitly configured for one E-PDCCH cluster in the N E-PDCCH clusters, and the PUCCH resources corresponding to the other N-1E-PDCCH clusters are determined by a preset method based on the configured PUCCH resource.
For example, assuming that the number of the first PUCCH resource explicitly configured in the resource configuration information is x1, the number of the PUCCH resource corresponding to E-PDCCH cluster n is: x (N) ═ x1+ (N-1), where 1. ltoreq. n.ltoreq.N;
for another example, assuming that the number of one PUCCH resource explicitly configured in the resource configuration information is x1, the number of the PUCCH resource corresponding to E-PDCCH cluster N is x (N) ═ x1+ (N-1) × Δ, where Δ > 1, 1 ≦ N, and the value of Δ may be fixed or predetermined, or may be configured by the base station.
Then, in step 620, the UE may determine a corresponding PUCCH resource for one E-PDCCH cluster according to the obtained resource configuration information, and then determine a PUCCH resource corresponding to each of the other N-1E-PDCCH clusters according to the obtained PUCCH resource.
Example b: in an LTE TDD system, M is greater than or equal to 1, and the UE needs to perform UCI feedback on PDCCHs received in M downlink subframes within the same uplink subframe, as shown in table 1 specifically; in this case, when step 620 is executed, the UE needs to determine one PUCCH resource in each subframe of M subframes according to preset resource configuration information and with respect to N E-PDCCH clusters configured by the system, that is, any one E-PDCCH cluster corresponds to one PUCCH resource in each subframe of M subframes.
For example, if N E-PDCCH cluster is configured in the system, the numbers of the N E-PDCCH cluster are respectively E-PDCCH-1, E-PDCCH-2, and E-PDCCH-N, and meanwhile, any E-PDCCH cluster is assumed to be E-PDCCH-N (1 is equal to or less than N and equal to or less than N), the numbers of the PUCCH resources respectively corresponding to each subframe in M subframes are sequentially PUCCH-N-1, PUCCH-N-2, and PUCCH-N-M, wherein PUCCH-N-M (1 is equal to or less than N and equal to or less than N and 1 is equal to or less than M) represents the PUCCH resource corresponding to the PDCCH transmitted by the E-PDCCH-N in the mth subframe, if the UE confirms that the PDCCH transmission exists in the E-PDCCH-N in the subframe M, the UE determines the PUCCH resource corresponding to the PDCCH transmission to be PUCCH-N-M, wherein N is more than or equal to 1 and less than or equal to N, and M is more than or equal to 1 and less than or equal to M.
The numbers PUCCH-N-1 and PUCCH-N-2 of the N × M PUCCH resources are the same as the numbers PUCCH-N-M
Figure BDA0000082611590000121
The numbers can be different from each other or partially or completely the same; and, the transmission format of the PUCCH resource may be pucchforme 1a/1b defined by 3GPP E-UTRA.
On the other hand, for some TDD uplink and downlink subframe configurations, the number of downlink subframes for feeding back UCI required by different uplink subframes is different, that is, the M values of different uplink subframes are different, for example, TDD ul-DL configuration 1 or 3 in table 1, at this time, the network side may configure PUCCH resources corresponding to E-PDCCH cluster according to the maximum value of multiple M values corresponding to different uplink subframes in the resource configuration information.
In the above embodiment b, the resource configuration information received by the UE from the base station may include the number of a PUCCH resource corresponding to each E-PDCCH cluster configured by the system in each subframe of M subframes, specifically:
in the resource configuration information, N E-PDCCH cluster explicitly configured for a system configures the number of a PUCCH resource in each subframe of M subframes respectively; for example, for any one E-PDCCH cluster, the E-PDCCH cluster is notified of the number of a PUCCH resource corresponding to the E-PDCCH cluster in each of the M subframes.
Accordingly, in step 620, the UE will determine a corresponding PUCCH resource in each of the M subframes directly for each E-PDCCH cluster in which there is PDCCH transmission.
In the resource configuration information, the number of one PUCCH resource is explicitly configured for the N E-PDCCH cluster configured by the system in one subframe of the M subframes, and the number of the corresponding PUCCH resource in the other M-1 subframes of the E-PDCCH cluster is configured based on the configured N PUCCH resources.
For example, assuming that the number of the PUCCH resource corresponding to the nth E-PDCCH cluster explicitly configured in the resource configuration information in one subframe is x (N), the number of the PUCCH resource corresponding to the nth E-PDCCH cluster in the mth subframe is x (N, M) ═ x (N) (+ (M-1), where 1 ≦ N, and 1 ≦ M.
For another example, assuming that the number of the PUCCH resource corresponding to the nth E-PDCCH cluster explicitly configured in the resource configuration information in one subframe is x (N), the PUCCH resource number corresponding to the nth E-PDCCH cluster in the mth subframe is x (N, M) ═ x (N) (+ (M-1) ×, where 1 ≦ N, 1 ≦ M, Δ is a positive integer, and Δ may be fixed or fixed, or may be configured by the base station.
Then, in step 620, the UE may first determine the number of a PUCCH resource corresponding to each of the N E-PDCCH cluster configured by the system in one of the M subframes according to the obtained resource configuration information, and then determine the number of a PUCCH resource corresponding to each E-PDCCH cluster in the other M-1 subframes according to the obtained number of the N PUCCH resources.
In the preset resource configuration information, the serial number of one PUCCH resource is explicitly configured for one E-PDCCH cluster in each subframe of the M subframes, and then the serial number of one PUCCH resource corresponding to each other E-PDCCH cluster in each subframe of the M subframes is configured based on the serial number of each configured PUCCH resource.
For example, assuming that the PUCCH capital number corresponding to the mth subframe in which the first E-PDCCH cluster is configured is x (M) as shown in the resource configuration information, the PUCCH resource number corresponding to the mth subframe in which the nth E-PDCCH cluster is configured is x (N, M) ═ x (M) + (N-1), where 1 ≦ N, and 1 ≦ M.
For another example, if the resource allocation information indicates that the PUCCH capital number corresponding to the mth subframe in which the first E-PDCCH cluster is allocated is x (M), the PUCCH resource number corresponding to the mth subframe in which the nth E-PDCCH cluster is allocated is x (N, M) ═ x (M) + (N-1) Δ, where 1 ≦ N, 1 ≦ M, Δ is a positive integer, and the value of Δ may be fixed or fixed, or may be allocated by the base station.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, a number of a PUCCH resource corresponding to one E-PDCCH cluster in each of M subframes, and then determine, according to the obtained numbers of the M PUCCH resources, a PUCCH resource corresponding to each of the other N-1E-PDCCH clusters in each of the M downlink subframes.
And in the preset resource configuration information, explicitly configuring the number of one PUCCH resource in one subframe of the M subframes for one E-PDCCH cluster, and then respectively configuring the number of one PUCCH resource corresponding to each E-PDCCH cluster in each subframe of the M downlink subframes based on the configured number of one PUCCH resource.
For example, assuming that the number of one PUCCH resource explicitly configured for the first E-PDCCH cluster in the resource configuration information is x1, the number of one PUCCH resource corresponding to E-PDCCH cluster n in subframe m is: x (N, M) ═ x1+ (M-1) × N + (N-1), or x (N, M) ═ x1+ (N-1) × M + (M-1), where N is not less than 1 and not more than N, and M is not less than 1 and not more than M.
For another example, assuming that the number of one PUCCH resource explicitly configured for the first E-PDCCH cluster in the resource configuration information is x1, the number of one PUCCH resource corresponding to the PDCCH of the subframe M in the E-PDCCH cluster N is x (N, M) ═ x1+ (M-1) × N Δ 1+ (N-1) × Δ 2, or x (N, M) ═ x1+ (N-1) × Δ 1+ (M-1) × Δ 2, where 1 ≦ N, 1 ≦ M, Δ 1 and Δ 2 are positive integers, values of Δ 1 and Δ 2 may be fixed or predetermined, and may be configured by the base station, and values of Δ 1 and Δ 2 may be the same or different.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, a PUCCH resource corresponding to one E-PDCCH cluster in one of the M subframes, and then determine, according to the obtained PUCCH resource, a PUCCH resource corresponding to each of the N E-PDCCH clusters configured by the system in each of the M downlink subframes.
The second case is: and the UE respectively determines K PUCCH resources in each subframe of the M downlink subframes aiming at each E-PDCCH cluster configured by the system according to preset resource configuration information. Wherein K is greater than 1, and preferably, K may be defined as the number of downlink carriers of the PDCCH corresponding to the downlink carrier where the E-PDCCH cluster is located for transmission by the network side. The method specifically comprises the following steps:
the resource configuration information comprises N E-PDCCH cluster configured by the system, and the numbers of K PUCCH resources respectively corresponding to each subframe in M downlink subframes. Correspondingly, the UE can directly determine the number of K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system in each subframe of M downlink subframes according to the obtained resource configuration information; or,
the resource configuration information comprises N E-PDCCH cluster configured by the system, and the number of one PUCCH resource corresponding to each subframe in M downlink subframes. Correspondingly, the UE can determine one PUCCH resource corresponding to each E-PDCCH cluster configured by the system in each subframe of the M downlink subframes according to the obtained resource configuration information, and determine other K-1 PUCCH resources corresponding to each E-PDCCH cluster in each subframe of the M subframes according to each obtained PUCCH resource; or,
the resource configuration information comprises N E-PDCCH cluster configured by the system, and the numbers of K PUCCH resources respectively corresponding to one subframe in the M downlink subframes. Correspondingly, the UE can determine K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system in one subframe of the M downlink subframes according to the obtained resource configuration information, and respectively determine K PUCCH resources respectively corresponding to each E-PDCCH cluster in other subframes of the M subframes according to each obtained PUCCH resource; or,
the resource configuration information comprises one cluster in N E-PDCCH clusters configured by the system, and the numbers of K PUCCH resources respectively corresponding to each subframe in M downlink subframes. Correspondingly, the UE can determine K PUCCH resources respectively corresponding to one E-PDCCH cluster configured by the system in each subframe of M subframes according to the obtained resource configuration information, and determine K PUCCH resources respectively corresponding to other E-PDCCH clusters in each subframe of M downlink subframes according to the obtained PUCCH resources; or,
the resource configuration information comprises the number of one PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes respectively in N E-PDCCH clusters configured by the system. Correspondingly, the UE can determine the number of one PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes in the system configuration according to the obtained resource configuration information, and determine the number of K PUCCH resources corresponding to the N E-PDCCH clusters in each subframe of the M downlink subframes according to the obtained number of the M PUCCH resources and a preset rule; or,
the resource configuration information comprises the serial numbers of one PUCCH resource corresponding to each of N E-PDCCH cluster configured by the system in one subframe of M downlink subframes. Correspondingly, the UE can determine the number of one PUCCH resource corresponding to each of the N E-PDCCH cluster in one of the M downlink subframes according to the obtained resource configuration information, and determine the number of K PUCCH resources corresponding to each of the N E-PDCCH cluster in each of the M downlink subframes according to the obtained number of the N PUCCH resources and a preset rule; or,
the resource configuration information comprises the serial numbers of K PUCCH resources corresponding to one E-PDCCH cluster in one subframe of M downlink subframes respectively in the N E-PDCCH clusters configured by the system. Correspondingly, the UE can determine the number of K PUCCH resources corresponding to one E-PDCCH cluster in one subframe of the M downlink subframes in the N E-PDCCH clusters according to the obtained resource configuration information, and determine the number of the K PUCCH resources corresponding to the N E-PDCCH clusters in each subframe of the M downlink subframes according to the obtained number of the K PUCCH resources and a preset rule; or,
the resource configuration information comprises one cluster in N E-PDCCH clusters configured by the system and the number of a corresponding PUCCH resource in one subframe in M downlink subframes. Correspondingly, the UE can determine a PUCCH resource corresponding to one E-PDCCH cluster configured by the system in one of the M downlink subframes according to the obtained resource configuration information, and determine K PUCCH resources corresponding to each E-PDCCH cluster configured by the system in each of the M downlink subframes according to the obtained PUCCH resource.
A detailed description of a specific implementation of the second case using embodiment c follows.
Embodiment c, in the LTE FDD system, where M is 1, if the UE is configured on one carrier to detect PDCCHs corresponding to K downlink component carriers, the UE receives up to K PDCCHs requiring UCI feedback in one downlink carrier in one E-PDCCHs cluster, and the UE needs to perform UCI feedback on the PDCCHs received in one E-PDCCH cluster in one uplink subframe, in this case, the UE needs to determine, according to preset resource configuration information, corresponding K PUCCH resources for each E-PDCCH cluster, that is, K PUCCH resources corresponding to any E-PDCCHs cluster, respectively, when performing step 620.
For example, if N E-PDCCH cluster is configured in the system, the numbers of the E-PDCCH cluster are respectively E-PDCCH-1, E-PDCCH-2, and E-PDCCH-N, and meanwhile, if any one E-PDCCH cluster is assumed, the number of PUCCH resources respectively corresponding to each member carrier in the K member carriers is sequentially PUCCH-N-1, PUCCH-N-2, and PUCCH-N-K, wherein PUCCH-N-K (1 is not less than N is not less than N, and 1 is not less than K is not less than K) represents PUCCH resources corresponding to PDCCH transmission on the K member carrier in the E-PDCCH cluster N, namely if the UE confirms that one PDCCH transmission corresponding to the member carrier K exists in the E-PDCCH cluster N, the UE determines the number of the PUCCH resource corresponding to the PDCCH transmission to be PUCCH-N-K, wherein N is more than or equal to 1 and less than or equal to N, and K is more than or equal to 1 and less than or equal to K.
Here, the numbers of N × K PUCCH resources are
Figure BDA0000082611590000171
The numbers may be different from each other or partially or completely the same, and the transmission format of each PUCCH resource may be PUCCH format 1a/1b defined by 3GPP E-UTRA.
In the above embodiment c, the resource configuration information received by the UE from the base station may include K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system, specifically:
in the first mode, in the resource configuration information, the numbers of the K PUCCH resources respectively configured in each subframe of the M downlink subframes for each E-PDCCHcluster configured by the system are explicitly specified. For example, the numbers of K PUCCH resources corresponding to any one E-PDCCH cluster are configured for the E-PDCCH cluster.
Then, in step 620, the UE may directly determine, according to the obtained resource configuration information, K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system in each subframe of the M downlink subframes.
In the resource configuration information, the number of a corresponding PUCCH resource is configured in each subframe of M downlink subframes for each E-PDCCH cluster configured by the system, and other K-1 PUCCH resources corresponding to the E-PDCCH cluster in each subframe of the M subframes are respectively determined according to the number of each configured PUCCH resource and a predetermined rule.
For example, if the number of a PUCCH resource allocated for the nth E-PDCCH cluster in each of M downlink subframes is denoted as x (N, M) in the resource allocation information, the number of the kth PUCCH resource allocated for the nth E-PDCCH cluster in the mth subframe is denoted as x (N, M, K) ═ x (N, M) + (K-1), where N is greater than or equal to 1 and less than or equal to N, M is greater than or equal to 1 and less than or equal to M, and K is greater than or equal to 1 and less than or equal to K.
For another example, if the number of a PUCCH resource allocated explicitly for the nth E-PDCCH cluster in each of M downlink subframes in the resource allocation information is denoted as x (N, M), the number of the kth PUCCH resource allocated for the nth E-PDCCH cluster in the mth subframe is denoted as x (N, M, K) ═ x (N, M) + (K-1) ×, where N is greater than or equal to 1 and less than or equal to N, M is greater than or equal to 1 and less than or equal to M, K is greater than or equal to 1 and less than or equal to K, Δ is a positive integer, and Δ may be fixed or agreed, or may be allocated by the base station.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, the number of one PUCCH resource corresponding to each E-PDCCH cluster configured by the system in each of the M downlink subframes, and then determine, according to the obtained number of each PUCCH resource, the numbers of other K-1 PUCCH resources corresponding to each E-PDCCH cluster in each of the M subframes.
And in the resource configuration information, explicitly configuring corresponding K PUCCH resources in one subframe of the M downlink subframes for each E-PDCCH cluster configured by the system, and configuring corresponding K PUCCH resources in each other subframe of the M subframes for the corresponding E-PDCCH cluster according to each configured PUCCH resource.
For example, if the resource allocation information explicitly allocates the nth E-PDCCH cluster to the first of the M downlink subframes, the number of the K PUCCH resources corresponding to each subframe is denoted as x (N, K), and the number of the kth PUCCH resource corresponding to the nth E-PDCCH cluster in the mth subframe is denoted as x (N, M, K) ═ x (N, K) + (M-1), where N is greater than or equal to 1 and less than or equal to N, M is greater than or equal to 1 and less than or equal to M, and K is greater than or equal to 1 and less than or equal to K.
For another example, if the resource allocation information explicitly allocates the nth E-PDCCH cluster to the K PUCCH resources respectively corresponding to the first subframe of the M downlink subframes, the number is denoted as x (N, K), and the number of the kth PUCCH resource corresponding to the nth E-PDCCH cluster in the mth subframe is denoted as x (N, M, K) ═ x (N, K) + (M-1) × Δ, where N is greater than or equal to 1 and less than or equal to N, M is greater than or equal to 1 and less than or equal to M, K is greater than or equal to 1 and less than or equal to K, Δ is a positive integer, and the value of Δ may be fixed or predetermined, or may be allocated by the base station.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system in one subframe of the M downlink subframes, and then determine, according to each obtained PUCCH resource, K PUCCH resources respectively corresponding to the corresponding E-PDCCH cluster in each other subframe of the M subframes.
And the mode IV explicitly configures corresponding K PUCCH resources in each subframe of the M subframes for one E-PDCCH cluster configured by the system in the resource configuration information, and configures the K PUCCH resources corresponding to each other E-PDCCH cluster in each subframe of the M downlink subframes according to each configured PUCCH resource.
For example, if the number of K PUCCH resources explicitly allocated for the first E-PDCCH cluster in each of M downlink subframes in the resource allocation information is x (M, K), the number of the K PUCCH resource allocated for the nth E-PDCCH cluster in the mth subframe is x (N, M, K) ═ x (M, K) + (N-1), where N is greater than or equal to 1 and less than or equal to N, M is greater than or equal to 1 and less than or equal to M, and K is greater than or equal to 1 and less than or equal to K.
For another example, if the resource allocation information explicitly allocates the first E-PDCCH cluster to the number of K PUCCH resources respectively corresponding to each of M downlink subframes, which is denoted as x (M, K), the number of the K PUCCH resource corresponding to the nth E-PDCCH cluster in the mth subframe is denoted as x (N, M, K) ═ x (M, K) + (N-1) ×, where N is greater than or equal to 1 and less than or equal to N, M is greater than or equal to 1 and less than or equal to M, K is greater than or equal to 1 and less than or equal to K, Δ is a positive integer, and the value of Δ may be fixed or agreed, or may be allocated by the base station.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, K PUCCH resources respectively corresponding to one E-PDCCH cluster configured by the system in each of the M subframes, and then determine, according to each obtained PUCCH resource, K PUCCH resources respectively corresponding to each other E-PDCCH cluster in each of the M downlink subframes.
In the resource configuration information, explicitly configuring a corresponding PUCCH resource in one subframe of M downlink subframes for N E-PDCCH cluster configured by the system, and respectively configuring corresponding K PUCCH resources in each subframe of the M downlink subframes for each E-PDCCH cluster configured by the system according to the configured N PUCCH resources.
For example, if the resource configuration information shows that the number of the first PUCCH resource corresponding to E-PDCCH cluster N in the first downlink subframe of M downlink subframes is x (N), then the number of the K-th PUCCH resource corresponding to E-PDCCH cluster N in the M-th subframe is x (N, M, K) ═ x (N) + (M-1) × K + (K-1), or x (N, M, K) ═ x (N) + (K-1) × M + (M-1), where N is greater than or equal to 1, M is greater than or equal to 1, and K is greater than or equal to 1.
For example, if the resource configuration information shows that the number of the first PUCCH resource corresponding to E-PDCCH cluster N in the first downlink subframe of M downlink subframes is x (N), then the number of the K-th PUCCH resource corresponding to E-PDCCH cluster N in the M-th subframe is x (N, M, K) ═ x (N) + (M-1) × Δ 1+ (K-1) ± Δ 2, or x (N, M, K) ═ x (N) + (K-1) × Δ 1+ (M-1) × Δ 2, where N is 1 ≦ N, M is 1 ≦ M, K is 1 ≦ K, Δ 1 and Δ 2 are positive integers, and the values of Δ 1 and Δ 2 may be fixed or predetermined, or may be configured by the base station, and the values of Δ 1 and Δ 2 may be the same or different.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, one PUCCH resource corresponding to N E-PDCCH cluster configured by the system in one of M downlink subframes, and then determine, according to the obtained N PUCCH resources, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system in each subframe of the M downlink subframes.
In the resource configuration information, explicitly configuring a corresponding PUCCH resource in each subframe of the M downlink subframes for one E-PDCCH cluster configured by the system, and respectively configuring corresponding K PUCCH resources in each subframe of the M downlink subframes for each E-PDCCH cluster configured by the system according to the configured PUCCH resource.
For example, if the number of the first PUCCH resource corresponding to the first E-PDCCH cluster in each of the M downlink subframes is denoted by x (M) explicitly in the resource configuration information, the number of the K-th PUCCH resource corresponding to the E-PDCCH cluster N in the M-th subframe is denoted by x (N, M, K) ═ x (M) + (N-1) × K + (K-1), or x (N, M, K) ═ x (M) + (K-1) × N + (N-1), where N is greater than or equal to 1, M is greater than or equal to 1, and K is greater than or equal to 1.
For another example, if the resource configuration information shows that the number of the first PUCCH resource corresponding to the first E-PDCCH cluster in each of the M downlink subframes is denoted by x (M), then the number of the kth PUCCH resource corresponding to the E-PDCCH cluster N in the mth subframe is denoted by x (N, M, K) ═ x (M) + (N-1) × Δ 1+ (K-1) × Δ 2, or x (N, M, K) ═ x (M) + (K-1) × Δ 1+ (N-1) × Δ 2, where N is 1 ≦ N, M is 1 ≦ M, K is 1 ≦ K, Δ 1 and Δ 2 are positive integers, and values of Δ 1 and Δ 2 may be fixed or predetermined, or may be configured by the base station, and values of Δ 1 and Δ 2 may be the same or different.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, a PUCCH resource corresponding to one E-PDCCH cluster configured by the system in each of the M downlink subframes, and then determine, according to the obtained M PUCCH resources, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system in each of the M downlink subframes.
And a seventh mode, in the resource configuration information, explicitly configuring corresponding K PUCCH resources in one subframe of the M downlink subframes for one E-PDCCH cluster configured by the system, and respectively configuring corresponding K PUCCH resources in each subframe of the M downlink subframes for each E-PDCCH cluster configured by the system according to the configured PUCCH resource.
For example, if the resource configuration information shows that the number of K PUCCH resources corresponding to the first E-PDCCH cluster in the first downlink subframe of M downlink subframes is x (K), then the number of K PUCCH resources corresponding to the M subframe of E-PDCCH cluster is x (N, M, K) ═ x (K) + (N-1) × M + (M-1), or x (N, M, K) ═ x (K) + (M-1) × N + (N-1), where N is greater than or equal to 1, M is greater than or equal to 1, and K is greater than or equal to 1.
For example, if the resource configuration information indicates that the number of K PUCCH resources corresponding to the first E-PDCCH cluster in the first downlink subframe of M downlink subframes is x (K), then the number of K PUCCH resources corresponding to the E-PDCCH cluster N in the mth subframe is x (N, M, K) ═ x (K) +(N-1) × Δ 1+ (M-1) ± Δ 2, or x (N, M, K) ═ x (K) +(M-1) × Δ 1+ (N-1) × Δ 2, where N is 1 ≦ N, M is 1 ≦ M, K is 1 ≦ K, Δ 1 and Δ 2 are positive integers, and the values of Δ 1 and Δ 2 may be fixed or predetermined, or may be configured by the base station, and the values of Δ 1 and Δ 2 may be the same or different.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, K PUCCH resources corresponding to one E-PDCCH cluster configured by the system in one of the M downlink subframes, and then determine, according to the obtained K PUCCH resources, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system in each of the M downlink subframes.
In the resource configuration information, explicitly configuring one E-PDCCH cluster configured for the system in one subframe of the M downlink subframes with a corresponding PUCCH resource, and then respectively configuring corresponding K PUCCH resources in each subframe of the M downlink subframes for each E-PDCCH cluster configured for the system according to the configured PUCCH resource.
For example, if the number of the first PUCCH resource corresponding to the first E-PDCCH cluster in the first downlink subframe of the M downlink subframes is explicitly marked as x1 in the resource configuration information, the number of the kth PUCCH resource corresponding to the M downlink subframe of the E-PDCCH cluster n is:
x (N, m, K) ═ x1+ (K-1) × N + (m-1) × K × N + (N-1), or,
x (n, M, K) ═ x1+ (K-1) × M + (n-1) × K × M + (M-1), or,
x (N, m, K) ═ x1+ (N-1) × K + (m-1) × K × N + (K-1), or,
x (N, M, k) ═ x1+ (N-1) × M + (k-1) × M + N + (M-1), or,
x (n, M, K) ═ x1+ (M-1) × K + (n-1) × K × M + (K-1), or,
x(n，m，k)＝x1+(m-1)*N+(k-1)*M*N+(n-1)，
wherein N is more than or equal to 1 and less than or equal to N, M is more than or equal to 1 and less than or equal to M, and K is more than or equal to 1 and less than or equal to K.
For another example, if the number of the first PUCCH resource explicitly specified in the resource configuration information for the first E-PDCCH cluster in the first downlink subframe of the M downlink subframes is x1, the number of the kth PUCCH resource explicitly specified in the resource configuration information for the E-PDCCH cluster n in the mth downlink subframe is:
x (N, m, K) ═ x1+ (K-1) × N Δ 1+ (m-1) × K × N Δ 2+ (N-1) × Δ 3, or,
x (n, M, K) ═ x1+ (K-1) × M Δ 1+ (n-1) × K × M Δ 2+ (M-1) × Δ 3, or,
x (N, m, K) ═ x1+ (N-1) × K Δ 1+ (m-1) × K × N Δ 2+ (K-1) × Δ 3, or,
x (N, M, k) ═ x1+ (N-1) × M Δ 1+ (k-1) × M × N Δ 2+ (M-1) × Δ 3, or,
x (n, M, K) ═ x1+ (M-1) × K Δ 1+ (n-1) × K × M Δ 2+ (K-1) × Δ 3, or,
x(n，m，k)＝x1+(m-1)*N*Δ1+(k-1)*M*N*Δ2+(n-1)*Δ3，
n is more than or equal to 1 and less than or equal to N, M is more than or equal to 1 and less than or equal to M, K is more than or equal to 1 and less than or equal to K, delta 1, delta 2 and delta 3 are positive integers, the values of delta 1, delta 2 and delta 3 can be fixed or appointed, and can also be configured by a base station, and the values of delta 1, delta 2 and delta 3 can be the same or different.
Then, in step 620, the UE may determine, according to the obtained resource configuration information, a PUCCH resource corresponding to one E-PDCCH cluster configured by the system in one of the M downlink subframes, and then determine, according to the obtained PUCCH resource, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system in each of the M downlink subframes.
In the embodiment of the invention, the same number of the E-PDCCH cluster in different subframes is assumed, but the technical scheme of the invention can be directly expanded to application scenes with different numbers of the E-PDCCH cluster in different subframes, for example, the E-PDCCH cluster does not exist in some subframes.
In the embodiment of the present invention, it is assumed that UCI corresponding to one PDCCH only needs to be transmitted by using one PUCCH resource, but the technical solution of the present invention can be directly extended to an application scenario where UCI corresponding to one PDCCH needs to be transmitted by using multiple PUCCH resources, that is, one PDCCH may correspond to at least one PUCCH resource, for example, one PDCCH may correspond to only one PUCCH resource, or may correspond to two or more PUCCH resources. On the other hand, in the embodiment of the present invention, the mentioned PDCCHs are all PDCCHs transmitted on the E-PDCCH.
In practical application, when a base station configures the same E-PDCCH cluster for different UEs, the PUCCH resources corresponding to the same E-PDCCH cluster can be the same or different for different UEs.
In the above embodiment, the transmission format of the PUCCH resource corresponding to the Enhanced PDCCH is PUCCH format 1a/1 b. And when the UE further determines the spread spectrum sequence number of the PUCCH according to the number of the PUCCH resource corresponding to any one E-PDCCH cluster, the UE adopts
Figure BDA0000082611590000241
Can be configured by the base station and can also be constantly equal to 1.
Based on the above embodiments, correspondingly, the base station also needs to confirm the PUCCH resources in the system according to the preset resource configuration information, so as to receive UCI sent by the UE on each PUCCH resource. Referring to fig. 7, in the embodiment of the present invention, a detailed procedure for the base station to perform PUCCH resource mapping is as follows:
step 700: the base station determines N Enhanced PDCCHcluster, namely E-PDCCH cluster for short, configured in a downlink subframe in the system, wherein N is a positive integer and is more than or equal to 1.
The base station may configure the N E-PDCCH cluster for each UE in a semi-static manner.
Step 710: and the base station sends preset resource configuration information to the UE, wherein the resource configuration information is used for indicating PUCCH resources corresponding to the E-PDCCH cluster configured by the system.
In this embodiment, any one E-PDCCH cluster may be mapped to one or more PUCCH resources, and the resource configuration information is a number of a corresponding PUCCH resource configured by each E-PDCCH cluster by the system. In practical application, the resource configuration information set by the base station for different UEs may be the same or different, that is, when the base station configures the same E-PDCCH cluster for different UEs, the PUCCH resources corresponding to the same E-PDCCH cluster may be the same or different for different UEs.
Step 720: and the base station determines K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system according to the obtained resource configuration information, wherein K is a positive integer and is more than or equal to 1.
In step 720, the UE may determine at least one PUCCH resource in each subframe of M downlink subframes according to preset resource configuration information for each E-PDCCH cluster configured by the system, where M is greater than or equal to 1, where the M downlink subframes transmit corresponding uplink control signals using the same uplink subframe.
For an LTE FDD system, M is 1, and for an LTE TDD system, the value of M is related to TDD uplink and downlink configuration and a specific uplink subframe.
In step 720, after determining the number of the PUCCH resource, the base station further determines the spreading sequence number and the physical resource block number corresponding to the PUCCH transmission based on the number of the PUCCH resource, wherein when determining the spreading sequence number, the UE uses
Figure BDA0000082611590000251
Can be configured by a base station and can also be constantly 1.
Step 730: the base station sends at least one PDCCH in at least one E-PDCH cluster in the N configured E-PDCH clusters;
step 740: and the base station receives UCI sent by the UE on PUCCH resources corresponding to the E-PDCCH cluster for transmitting the PDCCH.
In the above embodiment, the PDCCH transmitted by the base station on any one E-PDCCH cluster may be a PDCCH for scheduling PDSCH transmission, or a PDCCH for instructing release of downlink SPS. The UCI received by the base station on the PUCCH resource corresponding to any E-PDCCH cluster may be used to indicate the PDCCH for scheduling PDSCH transmission, or to indicate whether the PDCCH for releasing downlink SPS is received correctly.
In the foregoing embodiment, the execution manner of step 720 is different according to different practical application environments, and the specific execution manner may refer to the execution manner of step 620, that is, the manner in which the base station determines the K PUCCH resources corresponding to each E-PDCCH cluster configured by the system in step 720 is the same as the manner in which the UE determines the K PUCCH resources corresponding to each E-PDCCH cluster configured by the system in step 620 in the first case (including embodiment a and embodiment b) and the second case (including embodiment c), and details are not repeated herein.
In the embodiment of the invention, the same number of the E-PDCCH cluster in different subframes is assumed, but the technical scheme of the invention can be directly expanded to application scenes with different numbers of the E-PDCCH cluster in different subframes, for example, the E-PDCCH cluster does not exist in some subframes.
In the embodiment of the present invention, it is assumed that UCI corresponding to one PDCCH only needs to be transmitted by using one PUCCH resource, but the technical solution of the present invention can be directly extended to an application scenario where UCI corresponding to one PDCCH needs to be transmitted by using multiple PUCCH resources, that is, one PDCCH may correspond to at least one PUCCH resource, for example, one PDCCH may correspond to only one PUCCH resource, or may correspond to two or more PUCCH resources. On the other hand, the PDCCHs mentioned in the embodiments of the present invention are all PDCCHs transmitted on the E-PDCCH.
In practical application, when a base station configures the same E-PDCCH cluster for different UEs, the PUCCH resources corresponding to the same E-PDCCH cluster can be the same or different for different UEs.
In the above embodiment, the transmission format of the PUCCH resource corresponding to the Enhanced PDCCH is PUCCH format 1a/1 b. And when the base station further determines the spread spectrum sequence number of the PUCCH according to the number of the PUCCH resource corresponding to any one E-PDCCH cluster, the base station adopts
Figure BDA0000082611590000261
Can be configured by the base station and can also be constantly equal to 1.
Based on the above embodiments, as shown in fig. 8 and 9, in the embodiment of the present invention,
the UE comprises a first determining unit 80, a receiving unit 81, a second determining unit 82, a detecting unit 83 and a sending unit 84, wherein,
a first determining unit 80, configured to determine N E-PDCCH clusters configured in a downlink subframe in the system, where N is a positive integer and N is greater than or equal to 1;
a receiving unit 81, configured to receive resource configuration information sent by a network side, where the resource configuration information is used to indicate PUCCH resources corresponding to an E-PDCCH cluster configured by a system;
a second determining unit 82, configured to determine, according to the resource configuration information, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system, where K is a positive integer and is greater than or equal to 1;
a detecting unit 83, configured to perform PDCCH detection in the N E-PDCH clusters, and confirm that there is an E-PDCCH cluster transmitted by a PDCCH;
a sending unit 84, configured to transmit corresponding UCI to the network side on the PUCCH resource corresponding to the E-PDCCH cluster in which PDCCH transmission exists.
The base station comprises a first determining unit 90, a transmitting unit 91, a second determining unit 92 and a receiving unit 93, wherein,
a first determining unit 90, configured to determine N E-PDCCH clusters configured in a downlink subframe in the system, where N is a positive integer and N is greater than or equal to 1;
a sending unit 91, configured to send preset resource configuration information to a terminal side, where the resource configuration information is used to indicate PUCCH resources corresponding to an E-PDCCH cluster configured by a system, and send at least one PDCCH in at least one E-PDCH cluster of the N configured E-PDCH clusters;
a second determining unit, configured to determine, according to the resource configuration information, K PUCCH resources corresponding to each E-pdcchs configured by the system, where K is a positive integer and is greater than or equal to 1;
and the receiving unit is used for receiving the UCI sent by the terminal side on the PUCCH resources corresponding to the E-PDCCH cluster for transmitting the PDCCH.
In summary, in the embodiment of the present invention, a PUCCH resource mapping method corresponding to an enhanced PDCCH is provided, and specifically, the method includes: and setting resource configuration information, wherein the resource configuration information is used for indicating PUCCH resources corresponding to each E-PDCCH cluster configured by the system, and the UE and the base station respectively determine at least one PUCCH resource corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information and transmit UCI on the PUCCH resources corresponding to the E-PDCCH cluster with PDCCH transmission. Therefore, more flexible PUCCH resource configuration can be provided for the Enhanced PDCCH, and the number of the reserved PUCCH resources in the system is effectively reduced, so that the uplink transmission efficiency is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (36)

1. A method for mapping Physical Uplink Control Channel (PUCCH) resources is characterized by comprising the following steps:
determining N enhanced physical downlink control channel resource clusters (E-PDCCH) cluster configured in a downlink subframe in a system, wherein N is a positive integer and is more than or equal to 1;
receiving resource configuration information sent by a network side, wherein the resource configuration information is used for indicating PUCCH resources corresponding to an E-PDCCH cluster configured by a system;
determining K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information, wherein K is a positive integer and is more than or equal to 1;
performing PDCCH detection in the N E-PDCCH cluster, and confirming that the E-PDCCH cluster transmitted by the PDCCH exists;
and transmitting a corresponding uplink control signal to a network side on a PUCCH resource corresponding to the E-PDCCH cluster in which the PDCCH is transmitted.
2. The method of claim 1, wherein determining, according to the resource configuration information, K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system comprises: and according to preset resource configuration information, aiming at N E-PDCCH cluster configured by the system, respectively determining the number of corresponding K PUCCH resources in each subframe of M downlink subframes, wherein M is more than or equal to 1, and the M downlink subframes use the same uplink subframe to transmit corresponding uplink control signals.
3. The method of claim 2, wherein the resource configuration information comprises:
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
the serial number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes respectively of the N E-PDCCH clusters; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
and one E-PDCCH cluster in the N E-PDCCH clusters is numbered in one PUCCH resource corresponding to one subframe in the M downlink subframes.
4. The method according to claim 2 or 3, wherein determining, for N E-PDCCH clusters configured by the system, the number of the corresponding K PUCCH resources in each of M downlink subframes according to the resource configuration information includes:
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in each subframe of M downlink subframes according to the resource configuration information; or,
determining the number of a PUCCH resource corresponding to each subframe of the M downlink subframes of the N E-PDCCH cluster according to the resource configuration information, and determining the numbers of other K-1 PUCCH resources corresponding to each subframe of the M E-PDCCH cluster according to a preset rule according to the obtained number of the NxM PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of the K PUCCH resources respectively corresponding to the corresponding E-PDCCH cluster in other M-1 subframes in the M subframes according to a preset rule according to the obtained numbers of the NxK PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to one E-PDCCH cluster in the N E-PDCCH clusters in each subframe of M subframes according to the resource configuration information, and determining the numbers of K PUCCH resources respectively corresponding to other N-1E-PDCCH clusters in each subframe of M downlink subframes according to a preset rule according to the obtained numbers of the M multiplied by K PUCCH resources; or,
determining the number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes of the N E-PDCCH clusters according to the resource configuration information, and determining the number of K PUCCH resources corresponding to the N E-PDCCH clusters in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the M PUCCH resources; or,
determining the number of a PUCCH resource corresponding to each of the N E-PDCCH cluster in one of the M downlink subframes according to the resource configuration information, and determining the number of K PUCCH resources corresponding to each of the N E-PDCCH cluster in each of the M downlink subframes according to a preset rule according to the obtained number of the N PUCCH resources; or,
the terminal equipment determines the number of K PUCCH resources corresponding to one E-PDCCH cluster in one subframe of M downlink subframes according to the resource configuration information, and determines the number of K PUCCH resources corresponding to the N E-PDCCH cluster in each subframe of the M downlink subframes according to the obtained number of the K PUCCH resources and a preset rule; or,
and determining the number of a PUCCH resource corresponding to one E-PDCCH cluster configured by the system in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of K PUCCH resources corresponding to the N E-PDCCH clusters configured by the system in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the PUCCH resource.
5. The method of claim 4, wherein the K is the number of downlink carriers on which the network side transmits the corresponding PDCCH using the downlink carrier on which the E-PDCCHcluster is located.
6. The method according to any of claims 1-5, wherein the PDCCH transmitted on any one E-PDCCH cluster is a PDCCH used for scheduling transmission of a Physical Downlink Shared Channel (PDSCH) or a PDCCH used for indicating release of a downlink semi-persistent scheduling (SPS).
7. The method according to any of claims 1-5, wherein the transmission format of any one PUCCH resource is PUCCH format 1a/1 b.
8. The method according to any of claims 1-5, wherein the numbers of the PUCCH resources corresponding to different E-PDCCH cluster are different from each other, or are partially identical, or are completely identical.
9. The method of any of claims 1-5, wherein the cyclic shift interval is used when the PUCCH spreading sequence number is further determined according to the PUCCH resource number corresponding to any one E-PDCCH cluster
Figure FDA0000082611580000041
Configured by the base station, or always equal to 1.
10. A method for mapping Physical Uplink Control Channel (PUCCH) resources is characterized by comprising the following steps:
determining N enhanced physical downlink control channel resource clusters (E-PDCCH) cluster configured in a downlink subframe in a system, wherein N is a positive integer and is more than or equal to 1;
sending preset resource configuration information to a terminal side, wherein the resource configuration information is used for indicating PUCCH resources corresponding to the E-PDCCH cluster configured by the system;
determining K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information, wherein K is a positive integer and is more than or equal to 1;
transmitting at least one PDCCH within at least one E-PDCCH cluster among the N E-PDCCH clusters;
and receiving an uplink control signal sent by the terminal side on PUCCH resources corresponding to the E-PDCCH cluster for transmitting the PDCCH.
11. The method of claim 10, wherein determining K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information comprises: and according to preset resource configuration information, aiming at N E-PDCCH cluster configured by the system, respectively determining the number of corresponding K PUCCH resources in each subframe of M downlink subframes, wherein M is more than or equal to 1, and the M downlink subframes use the same uplink subframe to transmit corresponding uplink control signals.
12. The method of claim 11, wherein the resource configuration information comprises:
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
the serial number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes respectively of the N E-PDCCH clusters; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
and one E-PDCCH cluster in the N E-PDCCH clusters is numbered in one PUCCH resource corresponding to one subframe in the M downlink subframes.
13. The method according to claim 11 or 12, wherein determining, for N E-PDCCH clusters configured by the system according to the resource configuration information, the number of the corresponding K PUCCH resources in each of M downlink subframes respectively comprises:
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in each subframe of M downlink subframes according to the resource configuration information; or,
determining the number of a PUCCH resource corresponding to each subframe of the M downlink subframes of the N E-PDCCH cluster according to the resource configuration information, and determining the numbers of other K-1 PUCCH resources corresponding to each subframe of the M E-PDCCH cluster according to a preset rule according to the obtained number of the NxM PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of the K PUCCH resources respectively corresponding to the corresponding E-PDCCH cluster in other M-1 subframes in the M subframes according to a preset rule according to the obtained numbers of the NxK PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to one E-PDCCH cluster in the N E-PDCCH clusters in each subframe of M subframes according to the resource configuration information, and determining the numbers of K PUCCH resources respectively corresponding to other N-1E-PDCCH clusters in each subframe of M downlink subframes according to a preset rule according to the obtained numbers of the M multiplied by K PUCCH resources; or,
determining the number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes of the N E-PDCCH clusters according to the resource configuration information, and determining the number of K PUCCH resources corresponding to the N E-PDCCH clusters in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the M PUCCH resources; or,
determining the number of a PUCCH resource corresponding to each of the N E-PDCCH cluster in one of the M downlink subframes according to the resource configuration information, and determining the number of K PUCCH resources corresponding to each of the N E-PDCCH cluster in each of the M downlink subframes according to a preset rule according to the obtained number of the N PUCCH resources; or,
determining the number of K PUCCH resources corresponding to one E-PDCCH cluster in one of M downlink subframes according to the resource configuration information, and determining the number of K PUCCH resources corresponding to the N E-PDCCH cluster in each subframe in the M downlink subframes according to the obtained number of the K PUCCH resources and a preset rule; or,
and determining the number of a PUCCH resource corresponding to one E-PDCCH cluster configured by the system in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of K PUCCH resources corresponding to the N E-PDCCH clusters configured by the system in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the PUCCH resource.
14. The method of claim 13, wherein K is the number of downlink carriers on which the network side transmits the corresponding PDCCH using the downlink carrier on which the E-PDCCH cluster is located.
15. The method according to any of claims 10-14, wherein the PDCCH transmitted on any one E-PDCCH cluster is a PDCCH for scheduling a physical downlink shared channel, PDSCH, transmission or a PDCCH for indicating release of downlink semi-persistent scheduling, SPS.
16. The method according to any of claims 10-14, wherein the transmission format of any PUCCH resource is PUCCH format 1a/1 b.
17. The method of any of claims 10-14, wherein the PUCCH resources corresponding to different E-pdcchs are numbered differently from each other, or partially identical, or completely identical.
18. The method according to any of claims 10-14, wherein the cyclic shift interval is used when the PUCCH spreading sequence number is further determined according to the PUCCH resource number corresponding to any E-PDCCH cluster
Figure FDA0000082611580000071
Configured by the base station, or always equal to 1.
19. An apparatus for mapping Physical Uplink Control Channel (PUCCH) resources, comprising:
a first determining unit, configured to determine N enhanced physical downlink control channel resource clusters E-PDCCH cluster configured in one downlink subframe in the system, where N is a positive integer and N is greater than or equal to 1;
a receiving unit, configured to receive resource configuration information sent by a network side, where the resource configuration information is used to indicate a PUCCH resource corresponding to an E-PDCCH cluster configured by a system;
a second determining unit, configured to determine, according to the resource configuration information, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system, where K is a positive integer and is greater than or equal to 1;
a detection unit, configured to perform PDCCH detection within the N E-PDCH clusters, and confirm that there is an E-PDCCH cluster transmitted by a PDCCH;
and the sending unit is used for transmitting a corresponding uplink control signal to the network side on the PUCCH resource corresponding to the E-PDCCH cluster with PDCCH transmission.
20. The apparatus of claim 19, wherein the second determining unit determines K PUCCH resources corresponding to each E-PDCCH cluster configured by the system according to the resource configuration information, and includes: and according to preset resource configuration information, aiming at N E-PDCCHcluster configured by the system, respectively determining the number of corresponding K PUCCH resources in each subframe of M downlink subframes, wherein M is more than or equal to 1, and the M downlink subframes use the same uplink subframe to transmit corresponding uplink control signals.
21. The apparatus of claim 20, wherein the resource configuration information employed by the second determining unit comprises:
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
the serial number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes respectively of the N E-PDCCH clusters; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
and one E-PDCCH cluster in the N E-PDCCH clusters is numbered in one PUCCH resource corresponding to one subframe in the M downlink subframes.
22. The apparatus according to claim 20 or 21, wherein the second determining unit determines, according to the resource configuration information, numbers of K PUCCH resources in each of M downlink subframes for N E-PDCCH clusters configured by the system, respectively, includes:
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in each subframe of M downlink subframes according to the resource configuration information; or,
determining the number of a PUCCH resource corresponding to each subframe of the M downlink subframes of the N E-PDCCH cluster according to the resource configuration information, and determining the numbers of other K-1 PUCCH resources corresponding to each subframe of the M E-PDCCH cluster according to a preset rule according to the obtained number of the NxM PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of the K PUCCH resources respectively corresponding to the corresponding E-PDCCH cluster in other M-1 subframes in the M subframes according to a preset rule according to the obtained numbers of the NxK PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to one E-PDCCH cluster in the N E-PDCCH clusters in each subframe of M subframes according to the resource configuration information, and determining the numbers of K PUCCH resources respectively corresponding to other N-1E-PDCCH clusters in each subframe of M downlink subframes according to a preset rule according to the obtained numbers of the M multiplied by K PUCCH resources; or,
determining the number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes of the N E-PDCCH clusters according to the resource configuration information, and determining the number of K PUCCH resources corresponding to the N E-PDCCH clusters in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the M PUCCH resources; or,
determining the number of a PUCCH resource corresponding to each of the N E-PDCCH cluster in one of the M downlink subframes according to the resource configuration information, and determining the number of K PUCCH resources corresponding to each of the N E-PDCCH cluster in each of the M downlink subframes according to a preset rule according to the obtained number of the N PUCCH resources; or,
determining the number of K PUCCH resources corresponding to one E-PDCCH cluster in one of M downlink subframes according to the resource configuration information, and determining the number of K PUCCH resources corresponding to the N E-PDCCH cluster in each subframe in the M downlink subframes according to the obtained number of the K PUCCH resources and a preset rule; or,
and determining the number of a PUCCH resource corresponding to one E-PDCCH cluster configured by the system in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of K PUCCH resources corresponding to the N E-PDCCH clusters configured by the system in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the PUCCH resource.
23. The apparatus of claim 22, wherein K used by the second determining unit is a number of downlink carriers on which a network side uses a downlink carrier on which an E-PDCCH cluster is located to transmit a corresponding PDCCH.
24. The apparatus according to any of claims 19-23, wherein the PDCCH transmitted on any one E-PDCCH cluster detected by the detecting unit is a PDCCH for scheduling a PDSCH transmission of a physical downlink shared channel or a PDCCH for indicating a release of SPS.
25. The apparatus according to any of claims 19-23, wherein the transmission format of any PUCCH resource determined by the second determining unit is PUCCH format 1a/1 b.
26. The apparatus according to any of claims 19-23, wherein the numbers of PUCCH resources corresponding to different E-PDCCH cluster determined by the second determining means are different from each other, or partially the same, or completely the same.
27. The apparatus according to any of claims 19-23, wherein the second determining unit is configured to determine the cyclic shift interval used when the PUCCH spreading sequence number is further determined according to the PUCCH resource number corresponding to any one E-PDCCH cluster
Figure FDA0000082611580000101
Configured by the base station, or always equal to 1.
28. An apparatus for mapping Physical Uplink Control Channel (PUCCH) resources, comprising:
a first determining unit, configured to determine N enhanced physical downlink control channel resource clusters E-PDCCH cluster configured in one downlink subframe in the system, where N is a positive integer and is greater than or equal to 1;
a sending unit, configured to send preset resource configuration information to a terminal side, where the resource configuration information is used to indicate PUCCH resources corresponding to an E-PDCCH cluster configured by a system, and send at least one PDCCH in at least one E-PDCCH cluster of the N E-PDCCH clusters;
a second determining unit, configured to determine, according to the resource configuration information, K PUCCH resources corresponding to each E-PDCCH cluster configured by the system, where K is a positive integer and is greater than or equal to 1;
and the receiving unit is used for receiving the uplink control signals sent by the terminal side on PUCCH resources corresponding to the E-PDCCH cluster for transmitting the PDCCH.
29. The apparatus of claim 28, wherein the second determining unit determines, according to the resource configuration information, K PUCCH resources respectively corresponding to each E-PDCCH cluster configured by the system, and includes: and according to preset resource configuration information, aiming at N E-PDCCHcluster configured by the system, respectively determining the number of corresponding K PUCCH resources in each subframe of M downlink subframes, wherein M is more than or equal to 1, and the M downlink subframes use the same uplink subframe to transmit corresponding uplink control signals.
30. The apparatus of claim 29, wherein the sending unit sends preset resource configuration information to the terminal side, and the preset resource configuration information comprises:
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in each subframe of the M downlink subframes; or,
the N E-PDCCH cluster respectively corresponds to the number of K PUCCH resources in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
the serial number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes respectively of the N E-PDCCH clusters; or,
the N E-PDCCH cluster respectively corresponds to the number of one PUCCH resource in one subframe of the M downlink subframes; or,
one E-PDCCH cluster in the N E-PDCCH clusters respectively corresponds to the number of K PUCCH resources in one subframe in the M downlink subframes; or,
and one E-PDCCH cluster in the N E-PDCCH clusters is numbered in one PUCCH resource corresponding to one subframe in the M downlink subframes.
31. The apparatus according to claim 29 or 30, wherein the second determining unit determines, according to the resource configuration information, numbers of K PUCCH resources in each of M downlink subframes for N E-PDCCH clusters configured by the system, respectively, includes:
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in each subframe of M downlink subframes according to the resource configuration information; or,
determining the number of a PUCCH resource corresponding to each subframe of the M downlink subframes of the N E-PDCCH cluster according to the resource configuration information, and determining the numbers of other K-1 PUCCH resources corresponding to each subframe of the M E-PDCCH cluster according to a preset rule according to the obtained number of the NxM PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to the N E-PDCCH cluster in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of the K PUCCH resources respectively corresponding to the corresponding E-PDCCH cluster in other M-1 subframes in the M subframes according to a preset rule according to the obtained numbers of the NxK PUCCH resources; or,
determining the numbers of K PUCCH resources respectively corresponding to one E-PDCCH cluster in the N E-PDCCH clusters in each subframe of M subframes according to the resource configuration information, and determining the numbers of K PUCCH resources respectively corresponding to other N-1E-PDCCH clusters in each subframe of M downlink subframes according to a preset rule according to the obtained numbers of the M multiplied by K PUCCH resources; or,
determining the number of a PUCCH resource corresponding to one E-PDCCH cluster in each subframe of M downlink subframes of the N E-PDCCH clusters according to the resource configuration information, and determining the number of K PUCCH resources corresponding to the N E-PDCCH clusters in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the M PUCCH resources; or,
determining the number of a PUCCH resource corresponding to each of the N E-PDCCH cluster in one of the M downlink subframes according to the resource configuration information, and determining the number of K PUCCH resources corresponding to each of the N E-PDCCH cluster in each of the M downlink subframes according to a preset rule according to the obtained number of the N PUCCH resources; or,
determining the number of K PUCCH resources corresponding to one E-PDCCH cluster in one of M downlink subframes according to the resource configuration information, and determining the number of K PUCCH resources corresponding to the N E-PDCCH cluster in each subframe in the M downlink subframes according to the obtained number of the K PUCCH resources and a preset rule; or,
and determining the number of a PUCCH resource corresponding to one E-PDCCH cluster configured by the system in one subframe of the M downlink subframes according to the resource configuration information, and determining the numbers of K PUCCH resources corresponding to the N E-PDCCH clusters configured by the system in each subframe of the M downlink subframes according to a preset rule according to the obtained number of the PUCCH resource.
32. The apparatus according to claim 31, wherein K used by the second determining unit is a number of downlink carriers on which the sending unit transmits the corresponding PDCCH using the downlink carrier on which the E-PDCCH cluster is located.
33. The apparatus according to any of claims 28-32, wherein the PDCCH transmitted by the transmitting unit on any one E-PDCCH cluster is a PDCCH for scheduling a physical downlink shared channel, PDSCH, transmission or a PDCCH for indicating release of downlink semi-persistent scheduling, SPS.
34. The apparatus according to any of claims 28-32, wherein the transmission format of any PUCCH resource determined by the second determining unit is PUCCH format 1a/1 b.
35. The apparatus according to any of claims 28-32, wherein the numbers of PUCCH resources corresponding to different E-PDCCH cluster determined by the second determining unit are different from each other, or partially the same, or completely the same.
36. The apparatus according to any of claims 28-32, wherein the second determining unit is configured to determine the cyclic shift interval used when the PUCCH spreading sequence number is further determined according to the PUCCH resource number corresponding to any one E-PDCCH cluster
Figure FDA0000082611580000131
Configured by the base station, or always equal to 1.
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