WO2013185316A1 - 一种上行控制信道资源的确定方法和装置 - Google Patents

一种上行控制信道资源的确定方法和装置 Download PDF

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Publication number
WO2013185316A1
WO2013185316A1 PCT/CN2012/076887 CN2012076887W WO2013185316A1 WO 2013185316 A1 WO2013185316 A1 WO 2013185316A1 CN 2012076887 W CN2012076887 W CN 2012076887W WO 2013185316 A1 WO2013185316 A1 WO 2013185316A1
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WIPO (PCT)
Prior art keywords
pucch
pdcch
resource
base station
load
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2012/076887
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English (en)
French (fr)
Inventor
王轶
徐月巧
周华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
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Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to MX2014015301A priority Critical patent/MX347523B/es
Priority to KR1020177002869A priority patent/KR101746367B1/ko
Priority to KR1020167010402A priority patent/KR101718672B1/ko
Priority to RU2015100884/07A priority patent/RU2593385C1/ru
Priority to CN201280073705.5A priority patent/CN104365163B/zh
Priority to EP12879077.1A priority patent/EP2863693B1/en
Priority to JP2015516402A priority patent/JP6293129B2/ja
Priority to CA2877737A priority patent/CA2877737A1/en
Priority to KR1020157000385A priority patent/KR101704940B1/ko
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to BR112014031243A priority patent/BR112014031243A2/pt
Priority to PCT/CN2012/076887 priority patent/WO2013185316A1/zh
Priority to EP20184163.2A priority patent/EP3755095A1/en
Publication of WO2013185316A1 publication Critical patent/WO2013185316A1/zh
Priority to US14/566,162 priority patent/US9907057B2/en
Anticipated expiration legal-status Critical
Priority to US14/973,833 priority patent/US9560642B2/en
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to communications technologies, and in particular, to a method and apparatus for determining uplink control channel resources. Background technique
  • the uplink control channel (PUCCH, Physical Uplink Control Channel) is used to carry ACK/NACK (Positive Acknowledgement/Negative Acknowledgement) feedback to the downlink data channel (PDSCH), such as PUCCH format 1/1 a/lb. It can also be used to carry channel state information (CSI) of the downlink channel, such as PUCCH format 2/2a/2b.
  • PUCCH Physical Uplink Control Channel
  • CSI channel state information
  • the PUCCH base sequence of a user is determined by the sequence group label M and the base sequence label V in a sequence group. All users in the same cell adopt the same sequence group, and users in different cells adopt different sequence groups.
  • the PUCCH can be transmitted through different cyclic shifts (CS, Cyclic Shift) and / or different orthogonal masks (OCC) to ensure PUCCH orthogonality within the cell, thereby ensuring low inter-cell interference.
  • CS cyclic shifts
  • OCC orthogonal masks
  • multiple users can occupy the same CS and/or OCC but occupy different PRBs to ensure their orthogonality.
  • the physical resource occupied by PUCCH ⁇ U ⁇ H corresponds to the combination of CS, OCC and PRB.
  • PDCCH scheduling PDSCH Physical Downlink Control
  • EUTRA Evolved Universal Terrestrial Radio Access
  • many new scenarios have emerged, such as heterogeneous networks with the same or different cell IDs.
  • New features of the data channel and control channel should be introduced.
  • PDCCH the following needs to be considered: Ability to support increased control channel capacity; Can support frequency domain ICIC (Inter-Cell Interference Coordination); can improve the spatial reuse of control channel resources;
  • MBSFN Multicast Broadcast Single Frequency Network
  • Desired features include the ability to schedule frequency selection and the ability to mitigate inter-cell interference.
  • the E-PDCCH Enhanced-PDCCH, enhanced PDCCH
  • the E-PDCCH and the PDSCH occupy different physical resource blocks (PRB pairs), as shown in FIG. 1.
  • PRB pairs Physical resource blocks
  • a single PRB can carry E-PDCCHs of multiple users.
  • There are two main mapping schemes for E-PDCCH namely, localized mapping and distributed mapping, as shown in Figure 2.
  • a frequency selective scheduling gain and a frequency selective beamforming gain i.e., an eNB (base station) can transmit an E-PDCCH on a subcarrier having a better channel response.
  • a frequency diversity gain it is desirable to obtain a frequency diversity gain.
  • the ACK/NACK feedback for the PDSCH scheduled by the E-PDCCH can still be carried over the PUCCH.
  • the physical resources of the PUCCH can be dynamically and implicitly determined by parameters such as the sequence number of the E-CCE including at least ⁇ 3 ⁇ 4 ⁇ and E-PDCCH. But that
  • the derivation of PUCCH's physical resources may have the following problems:
  • the two mapping modes of the E-PDCCH, the distributed mapping and the centralized mapping, the number of the E-CCEs can be independent, and the PDCCH has only one mapping mode, and the CCE number is unified for all users. Assume that the PDCCH occupies the first three OFDM symbols, and the corresponding total number of CCEs is 20.
  • the different user PDCCHs occupy different CCEs in the 20 CCEs. For example, user 1 and user 2 occupy logically adjacent CCEs, and user 1 occupies #11 CCE.
  • the search space of each user is independently configured, and the E-CCE number is also calculated in the user's respective search space.
  • the base station will transmit the E-PDCCH in the user-optimized frequency band.
  • the PRB sequence numbers of E-PDCCH mappings of different users may be very different.
  • the E-PDCCH of user 1 is mapped to the first PRB, and the E-PDCCH of user 2 is used.
  • the mapping to the 37th PRB, then the PUCCH resources corresponding to the two users may be different PRBs.
  • one PRB can carry 3X PUCCHs, where X is the maximum number of CSs that can be simultaneously supported in one PRB.
  • the reserved resources of the PUCCH are at least 2 PRBs, resulting in a low spectrum utilization rate of the PUCCH.
  • This problem is relatively less severe in the PDCCH.
  • the total cost of the PDCCH of all users in the cell at a certain time can be dynamically indicated by the PCFICH (Physical Control Format Indicator Channel) (OFDM (Orthogonal Frequency Division Multiplexing) symbol)
  • PCFICH Physical Control Format Indicator Channel
  • OFDM Orthogonal Frequency Division Multiplexing
  • An object of the embodiments of the present invention is to provide a method and apparatus for determining an uplink control channel resource to solve the problems indicated by the background art.
  • a method for determining an uplink control channel resource includes:
  • UE User equipment
  • E-PDCCH enhanced downlink physical control channel
  • PUCCH uplink control channel
  • a method for determining an uplink control channel resource includes:
  • the base station configures different dedicated parameters for different E-PDCCH mapping modes of the UE
  • the base station sends the special parameter to the UE, or sends the dedicated parameter of the mapping mode of the E-PDCCH of the UE to the UE, so that the UE can use the dedicated parameter corresponding to the mapping mode of the E-PDCCH and the PUCCH calculation formula. , determine its uplink control channel (PUCCH) resources.
  • PUCCH uplink control channel
  • a method for determining an uplink control channel resource includes:
  • the UE determines its PUCCH resource according to the dedicated parameters configured by the base station and the PUCCH calculation formula corresponding to the mapping manner of its E-PDCCH.
  • a method for determining an uplink control channel resource includes:
  • the base station configures different PUCCH calculation formulas for different E-PDCCH mapping modes of the UE, so that the UE determines its PUCCH resources according to the dedicated parameters configured by the base station and the PUCCH calculation formula corresponding to the mapping manner of the E-PDCCH.
  • a method for determining an uplink control channel resource includes:
  • the UE determines the starting point of the PUCCH resource according to the load of the E-PDCCH and the mapping manner of the E-PDCCH;
  • the UE determines its PUCCH resource according to the starting point of its PUCCH resource and the PUCCH calculation formula.
  • a method for determining an uplink control channel resource includes:
  • the UE dynamically determines the maximum resource sequence number of the PUCCH according to the load of the E-PDCCH or dynamically according to the maximum value of the high-level pre-configuration;
  • the UE determines the resource of its PUCCH according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • a method for determining an uplink control channel resource includes: The base station configures a load multiple;
  • the base station sends the load multiple to the UE, so that the UE determines the load of the E-PDCCH according to the load multiple and the load of the distributed mapped E-PDCCH indicated by the received EPCFICH, and determines according to the load of the E-PDCCH.
  • the maximum resource sequence number of the PUCCH, and the PUCCH resource is determined according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • a method for determining an uplink control channel resource includes:
  • the base station configures loads of multiple E-PDCCHs
  • the base station sends the load and load indication information of the multiple E-PDCCHs to the UE, so that the UE determines the load of the E-PDCCH according to the load indication information, and determines the maximum resource sequence number of the PUCCH according to the load of the E-PDCCH. And determining, according to a calculation formula of the PUCCH and a maximum resource sequence number of the PUCCH, a resource of the PUCCH.
  • a user equipment UE
  • the UE includes:
  • a receiving unit configured to receive, by the base station, a dedicated parameter configured by a mapping manner of an enhanced downlink physical control channel (E-PDCCH) of the UE;
  • E-PDCCH enhanced downlink physical control channel
  • a determining unit which determines an uplink control channel (PUCCH) resource of the UE according to a dedicated parameter corresponding to a mapping manner of the E-PDCCH of the UE and a PUCCH calculation formula.
  • PUCCH uplink control channel
  • a base station includes: a configuration unit configured to configure different dedicated parameters for different E-PDCCH mapping modes of the UE; and a sending unit that uses the different The dedicated parameter is sent to the UE, or the dedicated parameter of the mapping mode of the E-PDCCH corresponding to the UE is sent to the UE, so that the UE determines the uplink control according to the dedicated parameter corresponding to the mapping mode of the E-PDCCH and the PUCCH calculation formula.
  • Channel (PUCCH) resource is provided, where the base station includes: a configuration unit configured to configure different dedicated parameters for different E-PDCCH mapping modes of the UE; and a sending unit that uses the different The dedicated parameter is sent to the UE, or the dedicated parameter of the mapping mode of the E-PDCCH corresponding to the UE is sent to the UE, so that the UE determines the uplink control according to the dedicated parameter corresponding to the mapping mode of the E-PDCCH and the PUCCH calculation formula.
  • Channel (PUCCH) resource is provided.
  • a user equipment UE
  • the UE includes:
  • a determining unit which determines a PUCCH resource of the UE according to a dedicated parameter configured by the base station and a PUCCH calculation formula corresponding to a mapping manner of the E-PDCCH of the UE.
  • a base station includes: a configuration unit, configured to configure different PUCCH calculation formulas for different E-PDCCH mapping modes of the UE, The UE determines the PUCCH resource according to the dedicated parameter configured by the base station and the PUCCH calculation formula corresponding to the mapping manner of the E-PDCCH.
  • a user equipment UE
  • the UE includes:
  • a first determining unit which determines a starting point of the PUCCH resource of the UE according to a load of the E-PDCCH and a mapping manner of the E-PDCCH of the UE;
  • a second determining unit configured to determine a PUCCH resource of the UE according to a starting point of the PUCCH resource of the UE and a PUCCH calculation formula.
  • a user equipment UE
  • the UE includes:
  • a first determining unit configured to dynamically determine a maximum resource sequence number of the PUCCH according to a load of the E-PDCCH or a dynamic maximum value according to a high-level pre-configuration
  • a second determining unit which determines a resource of the PUCCH of the UE according to a calculation formula of the PUCCH and a maximum resource sequence number of the PUCCH.
  • a base station includes: a configuration unit configured with a load multiplier;
  • a sending unit configured to send the load multiple to the UE, so that the UE determines the load of the E-PDCCH according to the load multiple and the load of the distributed mapped E-PDCCH indicated by the received EPCFICH, and according to the E-PDCCH
  • the load determines the maximum resource sequence number of its PUCCH, and determines the resource of its PUCCH according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • a base station includes: a configuration unit configured to load a plurality of E-PDCCHs;
  • a sending unit configured to send the load and load indication information of the multiple E-PDCCHs to the UE, so that the UE determines the load of the E-PDCCH according to the load indication information, and determines the PUCCH of the E-PDCCH according to the load of the E-PDCCH.
  • the maximum resource sequence number, and the resource of the PUCCH is determined according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • a computer readable program is provided, wherein, when the program is executed in a user equipment, the program causes the computer to perform the foregoing uplink control channel performed in the UE in the user equipment Method of determining resources.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the foregoing method for determining an uplink control channel resource performed in a UE in a user equipment .
  • a computer readable program wherein, when the program is executed in a base station, the program causes a computer to perform the foregoing uplink control channel resource performed in the base station in the base station Determine the method.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a method of determining an uplink control channel resource performed in a base station in a base station.
  • the beneficial effects of the embodiments of the present invention are: by the method of the embodiment, the PUCCH resource collision of different UEs is reduced, and/or the spectrum efficiency of the PUCCH is improved.
  • 1 is a schematic diagram of a PDSCH, a PDCCH, and an E-PDCCH;
  • 2a is a schematic diagram of a distributed mapping manner of an E-PDCCH
  • 2b is a schematic diagram of a centralized mapping manner of an E-PDCCH
  • FIG. 3 is a flowchart of a method for determining an uplink control channel (PUCCH) resource according to Embodiment 1;
  • FIG. 4 is a flowchart of a method for determining an uplink control channel (PUCCH) resource according to Embodiment 2;
  • FIG. 6 is a flowchart of a method for determining an uplink control channel (PUCCH) resource of Embodiment 4;
  • FIG. 7 is a determination of an uplink control channel (PUCCH) resource of Embodiment 5.
  • Figure 8a is a schematic diagram of eCCE numbers in a centralized mapping mode of E-PDCCHs of different UEs
  • Figure 8b is a schematic diagram of PUCCH resources in a centralized mapping mode of E-PDCCHs of different UEs
  • FIG. 10 is a flowchart of a method for determining an uplink control channel (PUCCH) resource according to Embodiment 6;
  • FIG. 11a is a schematic diagram of E-PDCCH mapping in a centralized mapping manner of E-PDCCHs of different UEs;
  • Figure lib is a schematic diagram of PUCCH resources in a centralized mapping mode of E-PDCCHs of different UEs;
  • Figure 12 is a flowchart of a method for determining uplink control channel (PUCCH) resources of Embodiment 7;
  • Figure 13 is an uplink control of Embodiment 8.
  • FIG. 14 is a schematic diagram of a composition of a user equipment of Embodiment 9;
  • Figure 15 is a diagram showing the composition of a base station of Embodiment 10.
  • FIG. 16 is a schematic diagram showing the composition of a user equipment of Embodiment 11;
  • Figure 17 is a schematic diagram showing the composition of a base station of Embodiment 12.
  • FIG. 19 is a schematic diagram showing the composition of a user equipment of Embodiment 14.
  • Figure 20 is a diagram showing the composition of a base station of Embodiment 15;
  • Figure 21 is a diagram showing the composition of a base station of Embodiment 16. detailed description
  • the embodiment of the invention provides a method for determining an uplink control channel (PUCCH) resource.
  • Figure 3 is a flow chart of the method. Referring to Figure 3, the method includes:
  • Step 301 A user equipment (UE) receives a dedicated parameter configured by a base station for a mapping manner of an enhanced downlink physical control channel (E-PDCCH) thereof;
  • E-PDCCH enhanced downlink physical control channel
  • the dedicated parameter herein may be a cell-specific public parameter or a user-specific (UE-specific) parameter, which is semi-statically configured by the upper layer.
  • the dedicated parameter is expressed as W ⁇ eeH , but the present invention is not intended to be limiting.
  • Step 302 The UE determines its uplink control channel (PUCCH) resource according to the dedicated parameter corresponding to the mapping manner of the E-PDCCH and the PUCCH calculation formula.
  • PUCCH uplink control channel
  • the base station to the user equipment maps the E-PDCCH in different ways with different specific parameters configured ⁇ 3 ⁇ 4 ⁇ ⁇ , i.e. distributed mapping different ⁇ 3 ⁇ 4 ⁇ ⁇ E-PDCCH corresponding PUCCH resource mapping localized . Therefore, even if the CCE numbers of the search spaces occupied by different UEs in the respective E-PDCCH mapping modes are the same, the PUCCH resource collision does not occur due to the use of different dedicated parameters N ⁇ eeH .
  • the PUCCH calculation formula for determining the PUCCH resource is not limited.
  • the existing PUCCH calculation formula can be used:
  • PUCCH "CCE + ⁇ PUCCH
  • N ra is a dedicated parameter configured by the base station for different E-PDCCH mapping modes. It is assumed that the dedicated parameter of the E-PDCCH configured by the base station in the centralized mapping mode is N ⁇ H calized , and the dedicated parameter configured by the base station for the E-PDCCH in the distributed mapping mode is C ed , and the PUCCH resource of the user 1 is ⁇ ; ⁇ + ⁇ , User 2's PUCCH resource U CCH Therefore, the PUCCH resource can be avoided.
  • the above formula is only an example, and the embodiment is not limited thereto.
  • step 301 can include: Receiving, by the UE, a dedicated parameter that is sent by the base station corresponding to a mapping manner of the E-PDCCH; or
  • the UE receives the dedicated parameters configured by the base station for different mapping modes of the E-PDCCH, and determines the dedicated parameters according to the mapping manner of the E-PDCCH.
  • the base station may send all the dedicated parameters configured for the mapping manner of different E-PDCCHs to the UE, and the UE determines the corresponding dedicated parameters according to the mapping manner of its own E-PDCCH.
  • the base station may only send the dedicated parameter corresponding to the mapping manner of the UE's E-PDCCH to the UE, whereby the UE may directly obtain the dedicated parameter corresponding to the mapping manner of its E-PDCCH.
  • the embodiment of the present invention further provides a method for determining an uplink control channel resource, where the method is the processing on the base station side corresponding to the method in Embodiment 1.
  • 4 is a flowchart of the method. Referring to FIG. 4, the method includes: Step 401: The base station configures different dedicated parameters for different E-PDCCH mapping modes of the UE. Step 402: The base station sends the different dedicated parameters. Sending to the UE, or transmitting the dedicated parameter of the mapping mode of the E-PDCCH of the UE to the UE, so that the UE determines the uplink control channel (PUCCH) according to the dedicated parameter corresponding to the mapping manner of the E-PDCCH and the PUCCH calculation formula. Resources.
  • PUCCH uplink control channel
  • the E-PDCCH of the present embodiment is configured differently for the distributed mapping of the E-PDCCH and the centralized mapping of the E-PDCCH, respectively, because the E-PDCCH may be distributed and may be centralized.
  • the dedicated parameter in which the user of the E-PDCCH with the distributed mapping and the E-PDCCH with the centralized mapping calculate the PUCCH resources by using different dedicated parameters, can reduce the collision probability of the PUCCH resources.
  • the base station configures different dedicated parameters for different E-PDCCH mapping modes, thereby avoiding the problem of PUCCH resource collisions of different UEs.
  • the embodiment of the invention further provides a method for determining an uplink control channel resource.
  • Figure 5 is a flow chart of the method. Referring to Figure 5, the method includes:
  • Step 501 The UE determines the PUCCH resource according to the dedicated parameter configured by the base station and the PUCCH calculation formula corresponding to the mapping manner of the E-PDCCH.
  • the same dedicated parameter N ⁇ H can be used, but different PUCCH calculation formulas are used. That is, the base station configures different PUCCH calculation formulas for different E-PDCCH mapping modes of the UE, so that UEs occupying different E-PDCCH physical resources and adopting different E-PDCCH mapping modes do not appear when calculating PUCCH resources. collision.
  • this embodiment is not limited thereto, for example, may be combined with Embodiment Example 1 and Example 2, the base station may configure different specific parameters ⁇ 3 ⁇ 4 ⁇ ⁇ different ways to map the E-PDCCH, the UE according to The mapping mode of the E-PDCCH is determined by using the corresponding dedicated parameter N ⁇ CCH and the corresponding PUCCH calculation formula to determine its PUCCH resource.
  • the base station configures the following PUCCH calculation formula for the centralized mapping E-PDCCH:
  • N eeH is a dedicated parameter of a high-level semi-static configuration
  • N x is a physical resource block (PRB) sequence number occupied by the E-PDCCH
  • Z is a maximum downlink control information (DCI) carried in each PRB during distributed mapping.
  • the ratio of the maximum number of DCIs carried in each PRB to the maximum number of DCIs carried in each PRB during centralized mapping; preferably, Z is 8 or 16, Y Z/X.
  • n CCE is the number of control channel elements (eCCEs) within each PRB.
  • the base station configures the following PUCCH calculation formula for the distributed mapped E-PDCCH:
  • the UE may determine its PUCCH resource according to the above formula.
  • N eeH is a dedicated parameter of the upper semi-static configuration
  • ⁇ ⁇ is the PRB sequence number occupied by the E-PDCCH
  • Z is the maximum DCI number carried in each PRB during distributed mapping
  • eREG PRB Particle group
  • ⁇ , ⁇ , ... ⁇ -l which may be the lowest eCCE number corresponding to the E-PDCCH, or may be the eCCE number associated with the DM-RS port corresponding to the E-PDCCH.
  • the calculation formula of the PUCCH of the E-PDCCH configuration in which the above-mentioned base stations are respectively the centralized mapping and the distributed mapping is also only an example, and the embodiment of the present invention is not limited thereto.
  • the base station can also test Other different PUCCH calculation formulas are configured for different E-PDCCH mapping schemes, and the PUCCH calculation formulas corresponding to different E-PDCCH mapping schemes are included in the protection scope of the present invention.
  • n PUCCH ⁇ N 1 v PU r C r CH H + 1 Z ⁇ x ⁇ N i R B ex + 1 Yx ⁇ n , l r C r CE F + n 4P .
  • n (1) - NL'êt + ZXN ⁇ ex + Yx + ARI can be configured.
  • n CCH N CCH + can be configured.
  • Zx N ex + n CCE + ARI where ARI is the other parameter of the high-level configuration.
  • ZXN ex is also optional.
  • the embodiment of the present invention further provides a method for determining an uplink control channel resource, where the method is a base station side processing corresponding to the method in Embodiment 3.
  • 6 is a flowchart of the method. Referring to FIG. 6, the method includes: Step 601: The base station configures different PUCCH calculation formulas for different E-PDCCH mapping modes of the UE, so that the UE selects specific parameters according to the base station and corresponding to the E. The PUCCH calculation formula of the mapping mode of the PDCCH determines its PUCCH resource.
  • the embodiment of the present invention does not limit the type of the PUCCH calculation formula that is configured by the base station. As long as the PUCCH calculation formula configured for different E-PDCCH mapping modes is different, it is included in the protection scope of the embodiment of the present invention.
  • the base station configures different PUCCH calculation formulas for different E-PDCCH mapping modes, so that UEs of different E-PDCCH mapping modes can calculate PUCCH resources according to different PUCCH calculation formulas, thereby avoiding The problem of PUCCH resource collision.
  • Example 5 The embodiment of the invention further provides a method for determining an uplink control channel resource.
  • Figure 7 is a flow chart of the method. Referring to Figure 7, the method includes:
  • Step 701 The UE determines a starting point of the PUCCH resource according to the load of the E-PDCCH and the mapping manner of the E-PDCCH.
  • Step 702 The UE determines its PUCCH resource according to the starting point of its PUCCH resource and the PUCCH calculation formula.
  • the base station configures different PUCCH resource starting points for different E-PDCCH mapping modes, so that the starting point of one mapping mode is next to another The maximum possible resource number of the PUCCH of the mapping mode. Therefore, when calculating the PUCCH resource, the UE may determine the starting point of the PUCCH resource according to the load of the E-PDCCH (ie, the total cost) and the mapping manner of the E-PDCCH, and the corresponding E-PDCCH mapping manner is The PUCCH resources are calculated based on the starting points of different PUCCH resources, thus avoiding collision of PUCCH resources of different UEs.
  • the base station indicates the total cost of the distributed mapped E-PDCCH through a Physical Control Format Indicator Channel (EPCFICH), e.g., indicates the number of eCCEs or the number of PRBs per Transmission Time Interval (TTI).
  • ECFICH Physical Control Format Indicator Channel
  • TTI Transmission Time Interval
  • the UE determines that the starting point of its PUCCH resource is 0; if the E-PDCCH of the UE is a centralized mapping, the UE determines that the starting point of its PUCCH resource is the distributed mapping E- The maximum index of the PUCCH resource corresponding to the PDCCH.
  • the calculation formula of the above PUCCH is only an example, and the embodiment is not limited thereto, and any calculation formula that can be used for calculating the PUCCH resource is It is included in the scope of protection of the present invention.
  • the resource starting points of different PUCCHs are used corresponding to different E-PDCCH mapping manners, and the PUCCH resource collision problem of different UEs is reduced.
  • 8a and 8b are eCCE numbers and corresponding E-PDCCHs of different UEs in centralized mapping mode.
  • N x is the sequence number of the PRB occupied by the E-PDCCH
  • 0, 1, ... X -1 which may be the lowest eCCE number corresponding to the E-PDCCH, or may be the eCCE number associated with the DM-RS port corresponding to the E-PDCCH.
  • the sequence number of the PRB can be used to solve the resource collision of the PUCCH between the UEs in the centralized mapping
  • the mapping of the CC £ labels to different E-PDCCHs is independently numbered. Therefore, the resource collision of the PUCCH between UEs with different mapping modes of the E-PDCCH cannot be solved.
  • FIG. 9 is a schematic diagram of eCCE numbers in different E-PDCCH mapping modes.
  • UE1 and UE2 adopt different mapping modes, UE1 is a distributed mapping, and UE2 is a centralized mapping.
  • Embodiment 3 if different E-PDCCH mapping modes adopt the same N eeH , With different PUCCH calculation formulas, users who occupy different E-PDCCH physical resources and adopt different E-PDCCH mapping/transmission modes may not collide when calculating PUCCH resources.
  • the PUCCH resources corresponding to the E-PDCCH of the centralized mapping can be closely distributed. After the maximum index of the PUCCH resource corresponding to the E-PDCCH of the formula mapping.
  • the embodiment of the invention further provides a method for determining an uplink control channel resource.
  • Figure 10 is a flow chart of the method. Referring to Figure 10, the method includes:
  • Step 1001 The UE dynamically determines the maximum resource sequence number of the PUCCH according to the load of the E-PDCCH or dynamically according to the maximum value pre-configured by the upper layer;
  • Step 1002 The UE determines, according to a calculation formula of the PUCCH and a maximum resource sequence number of the PUCCH.
  • the base station presets a maximum resource sequence number, and when the UE determines the PUCCH resource (that is, the PUCCH resource required for the ACK/NACK feedback of the PDSCH scheduled by the E-PDCCH), the UE makes the resource sequence number of the PUCCH.
  • the predetermined maximum resource number is not exceeded, thereby avoiding the problem of resource collision.
  • the maximum resource sequence number may be dynamically determined according to the load of the E-PDCCH, or may be dynamically determined according to the maximum value pre-configured by the upper layer. This embodiment is not limited thereto. Among them, the high-level pre-configured maximum value also considers the load of the E-PDCCH.
  • the load of the E-PDCCH may be obtained directly or indirectly according to the EPCFICH, or may be obtained according to the EPCFICH and the high layer signaling.
  • the EPCFICH may indicate the number of eCCEs corresponding to the E-PDCCHs of all UEs, that is, the total number of eCCEs including the distributed mapping and the centralized mapping. Therefore, the UE may directly or indirectly obtain the load of the E-PDCCH according to the EPCFICH, and then may This determines the maximum resource sequence number of the PUCCH.
  • the EPCFICH may also indicate only the number of eCCEs corresponding to the E-PDCCH of all the distributed mapped UEs: consult, then the upper layer can be adopted.
  • the UE can obtain the load of the E-PDCCH according to the EPCFICH and the high layer signaling, and can determine according to this.
  • the maximum resource number of the PUCCH is the maximum resource number of the PUCCH.
  • the maximum dynamic level preconfigured for determining the maximum number of resources if the base station does not transmit to the UE the EPCFICH, i.e. without the EPCFICH, it may be configured by a plurality of N CCH level, in the E-PDCCH DCI Add or multiplex existing bits to dynamically indicate which N rf eOT to use .
  • the UE determines the load of the E-PDCCH according to the high layer signaling and the dynamic indication, and further determines the maximum resource sequence number of the PUCCH.
  • the UE may determine the resource of its PUCCH by performing a modulo operation on the maximum resource sequence number of the PUCCH by calculating the obtained value according to the calculation formula of the PUCCH.
  • step 1002 other items may be added to avoid the increased collision probability of modulo (surplus).
  • the base station when a certain time, the base station only schedules 3 UEs, that is, sends E-PDCCH scheduling PDSCH transmissions for 3 UEs, if the E-PDCCHs of the 3 UEs are respectively far apart.
  • n CCH N CCH + 20 + 2 and n N ⁇ JjrrH +36 + 2.
  • up to 6 CSs and 3 OCCs can be supported in each PRB.
  • the PRB can carry 18 different ea/s .
  • A3 ⁇ 4 eOT 18
  • the PRBs corresponding to the PUCCHs of the three UEs are the second PRB, the third PRB and the fourth PRB, respectively.
  • the PRB can actually accommodate up to 54 UEs, but in this example, there are only 3 UEs, which still occupy 3 PRBs.
  • the resource sequence number of the PUCCH may be limited by the method of this embodiment not to exceed a preset maximum resource sequence number.
  • the maximum resource sequence number may be dynamically determined according to the load of the E-PDCCH, or dynamically determined according to a maximum value of the high-level pre-configuration.
  • the load of the E-PDCCH may be obtained directly or indirectly according to the EPCFICH, and the load of the E-PDCCH may be obtained according to the EPCFICH and the high layer signaling.
  • the method of dynamically determining the maximum resource sequence number according to the maximum value of the high-level pre-configuration may be jointly obtained by the high-level signaling and the dynamic indication information. For example, if the maximum resource number is N rf eOT -1 , the PUCCH resource can be determined by the remainder, thereby limiting the resource number of the PUCCH not exceeding the preset maximum resource number. That is,
  • PUCCH ( 1 N * P (l U ) CCH +Xx ⁇ N 1 , R in B dex + nCCE ) JmodN 1 e l P oa D d CCH
  • the PUCCH resources of the three UEs are:
  • the PUCCHs of the three UEs are mapped to different OCC or CS resources in the same PRB, which improves the spectrum efficiency of the PUCCH.
  • the function in [] can be calculated by the same formula as the prior art, for example, ⁇ + ⁇ , and the formula given in Embodiment 1 3 5 and its method can also be used, for example, for distributed mapping. , for ⁇ ucc" + «CCE' for centralized mapping, A ⁇ H alizf:d + « ⁇ E , or any other formula, such as N UCCH +n CCE +n AP , where "corresponding to E-PDCCH The serial number of the antenna port (DM-RS), or N CCH +n CCE +ARI , where ARI is the parameter of the high-level configuration. Then, a preferred way is:
  • the PUCCHs of the three UEs are mapped to different OCC or CS resources in the same PRB, which improves the spectrum efficiency of the PUCCH.
  • both UE2 and UE3 are calculated according to formula (a), that is, the expressions in the parentheses of the first term and the second term are exactly the same, then all are 7, and the PUCCH resources of the UE collide, because the second term in equation (b) The expressions in the first parenthesis are different, avoiding resource collisions of PUCCH between UEs.
  • the calculation formula of the PUCCH and the calculation method of the corresponding PUCCH resource are not limited, and may be implemented by, for example, the method of Embodiment 1, Embodiment 3 or Embodiment 5 of the present invention, as long as the calculated The resource number of the PUCCH resource is not greater than the maximum resource number of the PUCCH that is preset, and is included in the protection scope of the present invention.
  • the maximum resource number of the PUCCH is preset, so that the calculated
  • the resource number of the PUCCH resource does not exceed the predetermined value, thereby improving the spectral efficiency of the PUCCH.
  • the PUCCH resource is calculated by the method of Embodiment 1, Embodiment 3 or Embodiment 5, the difference can be avoided at the same time.
  • the embodiment of the present invention further provides a method for determining an uplink control channel resource, where the method is a base station side processing corresponding to an embodiment of Embodiment 6.
  • Figure 12 is a flow chart of the method. Referring to Figure 12, the method includes:
  • Step 1201 The base station configures a load multiple
  • Step 1202 The base station sends the multiple of the load to the UE, so that the UE determines the load of the E-PDCCH according to the load multiple and the load of the distributed mapped E-PDCCH indicated by the received EPCFICH, and according to the E-PDCCH.
  • the load determines the maximum resource sequence number of its PUCCH, and determines the resource of its PUCCH according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • This embodiment is an implementation manner in which the UE obtains the E-PDCCH according to the EPCFICH and the high layer signaling according to the sixth embodiment.
  • the base station may pre-configure a load multiplier ⁇ and send the multiple of the load to the UE through high layer signaling.
  • the UE can determine the E-PDCCH. Load, and determine the maximum resource sequence number of the PUCCH according to this, and determine the resource of the PUCCH according to the calculation formula of the PUCCH, thereby improving the spectrum efficiency of the PUCCH.
  • the embodiment of the present invention further improves a method for determining an uplink control channel resource, where the method is a base station side processing corresponding to another embodiment of Embodiment 6.
  • Figure 13 is a flow chart of the method. Referring to Figure 13, the method includes:
  • Step 1301 The base station configures a load of multiple E-PDCCHs.
  • Step 1302 The base station sends the load and load indication information of the multiple E-PDCCHs to the UE, so that the UE determines the load of the E-PDCCH according to the load indication information, and determines the PUCCH of the E-PDCCH according to the load of the E-PDCCH.
  • the maximum resource sequence number, and the resource of the PUCCH is determined according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • the base station may configure the load N rf COT of the multiple E-PDCCHs through the upper layer, and add or multiplex the existing bits in the DCI of the E-PDCCH transmitted to the UE to dynamically indicate the Which N:i P a D d CCH is used by the UE. Therefore, the UE can determine the load of the E-PDCCH, and determine the maximum resource sequence number of the PUCCH according to this, and determine the resource of the PUCCH according to the calculation formula of the PUCCH, thereby improving the spectrum efficiency of the PUCCH.
  • the embodiment of the present invention further provides a user equipment, as described in the following embodiment 9.
  • the principle of the user equipment is similar to that of the first embodiment. Therefore, refer to the method of the first embodiment. Implementation, repetition will not be repeated.
  • An embodiment of the present invention further provides a user equipment (UE).
  • UE 14 is a schematic diagram of the composition of the UE. Referring to FIG. 14, the UE includes:
  • the receiving unit 141 which receives a dedicated parameter configured by the base station for mapping the enhanced downlink physical control channel (E-PDCCH) of the UE;
  • E-PDCCH enhanced downlink physical control channel
  • the determining unit 142 determines the uplink control channel (PUCCH) resource of the UE according to a dedicated parameter corresponding to the mapping manner of the E-PDCCH of the UE and a PUCCH calculation formula.
  • PUCCH uplink control channel
  • the receiving unit 101 is configured to: receive a dedicated parameter that is sent by the base station and corresponding to a mapping manner of the E-PDCCH, or receive a dedicated parameter that is sent by the base station and configured by using different mapping modes of the E-PDCCH, where The dedicated parameters are determined according to the mapping manner of the E-PDCCH.
  • the base station configures different dedicated parameters for different E-PDCCH mapping modes, and the UEs in different E-PDCCH mapping modes calculate different PUCCH resources according to the different dedicated parameters.
  • the resource collision problem of PUCCH is avoided.
  • the embodiment of the present invention further provides a base station, as described in Embodiment 10 below.
  • the principle of the problem is solved by the base station is similar to that of the second embodiment.
  • For the specific implementation refer to the implementation of the method in Embodiment 2. The repetitions are not repeated here.
  • FIG. 15 is a schematic diagram of the structure of the base station.
  • the base station includes:
  • the configuration unit 151 is configured to configure different dedicated parameters for different E-PDCCH mapping modes of the UE.
  • the sending unit 152 sends the different dedicated parameters to the UE, or uses a dedicated mapping manner of the E-PDCCH of the corresponding UE.
  • the parameter is sent to the UE, so that the UE determines its uplink control channel (PUCCH) resource according to the dedicated parameter corresponding to the mapping manner of its E-PDCCH and the PUCCH calculation formula.
  • PUCCH uplink control channel
  • the base station in this embodiment configures different dedicated parameters for different E-PDCCH mapping modes, and the UEs in different E-PDCCH mapping modes calculate different PUCCH resources according to the different dedicated parameters, thereby avoiding The resource collision problem of PUCCH.
  • the embodiment of the present invention further provides a user equipment, as described in the following Embodiment 11.
  • the principle of the user equipment is similar to that of the third embodiment. Therefore, refer to the method of Embodiment 3 for the specific implementation. Implementation, repetition will not be repeated.
  • FIG. 16 is a schematic diagram of the composition of the UE.
  • the UE includes:
  • the determining unit 161 determines the PUCCH resource of the UE according to a dedicated parameter configured by the base station and a PUCCH calculation formula corresponding to the mapping manner of the E-PDCCH of the UE.
  • the determining unit 161 determines the PUCCH resource of the UE according to the following formula configured by the base station for the UE:
  • ⁇ ⁇ is a dedicated parameter for the upper semi-static configuration
  • A is the content occupied by the E-PDCCH Sequence number of the resource block (PRB)
  • Z is the maximum number of downlink control information (DCI) carried in each PRB during distributed mapping
  • ⁇ is the maximum number of DCIs and centralized mappings carried in each PRB when distributed mapping The ratio of the maximum number of DCIs carried in each PRB; the number of control channel elements (eCCEs) within each PRB.
  • DCI downlink control information
  • ee 0, l, ... Xl, which may be the lowest eCCE number corresponding to the E-PDCCH, or may be the eCCE associated with the demodulation reference symbol port (DM-RS port) corresponding to the E-PDCCH. Numbering.
  • the determining unit 161 determines the PUCCH resource of the UE according to the following formula configured by the base station for the UE:
  • ⁇ ⁇ is a dedicated parameter of the upper semi-static configuration; a PRB sequence number occupied by the E-PDCCH; Z is a maximum DCI number carried in each PRB during distributed mapping; and a resource particle in each PRB Group (eREG) or eCCE or DCI number.
  • the eCCE number associated with the DM-RS port corresponding to the E-PDCCH is the eCCE number associated with the DM-RS port corresponding to the E-PDCCH.
  • the base station configures different PUCCH calculation formulas for different E-PDCCH mapping modes, and the UEs in different E-PDCCH mapping modes calculate different PUCCH resources according to the different PUCCH calculation formulas. This avoids the resource collision problem of the PUCCH.
  • the embodiment of the present invention further provides a base station, as described in the following Embodiment 12.
  • the principle of solving the problem is similar to the method of Embodiment 4, and therefore, for the specific implementation, refer to the implementation of the method of Embodiment 4. The repetitions are not repeated here.
  • FIG. 17 is a schematic diagram of the composition of the base station.
  • the base station includes:
  • the configuration unit 171 is configured to configure different PUCCH calculation formulas for different E-PDCCH mapping modes of the UE, so that the UE determines the PUCCH resource according to the dedicated parameters configured by the base station and the PUCCH calculation formula corresponding to the mapping manner of the E-PDCCH.
  • the base station in this embodiment configures different PUCCH calculation formulas for different E-PDCCH mapping modes.
  • the UEs in different E-PDCCH mapping modes calculate different PUCCH resources according to the different PUCCH calculation formulas. This avoids the resource collision problem of the PUCCH.
  • An embodiment of the present invention further provides a user equipment, as described in Embodiment 13 below, because the user equipment
  • the principle of the solution is similar to that of the embodiment 5, and therefore, the specific implementation thereof is referred to the implementation of the method of the embodiment 5, and the repeated description is omitted.
  • An embodiment of the present invention further provides a user equipment (UE).
  • UE user equipment
  • 18 is a schematic diagram of the composition of the UE. Referring to FIG. 18, the UE includes:
  • a first determining unit 181 which determines a starting point of the PUCCH resource of the UE according to a load of the E-PDCCH and a mapping manner of the E-PDCCH of the UE;
  • the second determining unit 182 determines the PUCCH resource of the UE according to the starting point of the PUCCH resource of the UE and the PUCCH calculation formula.
  • the load of the E-PDCCH is determined by an eCCE number or a PRB number indicated by a Physical Control Format Indicator Channel (EPCFICH).
  • ECFICH Physical Control Format Indicator Channel
  • the starting point of the PUCCH in the mapping mode of the E-PDCCH is next to the possible maximum resource number of the PUCCH in another E-PDCCH mapping mode.
  • the base station configures a starting point of different PUCCH resources for different E-PDCCH mapping modes, and the PUCCH resources calculated by the UE in different E-PDCCH mapping modes according to the starting point of the different PUCCH resources. Differently, the resource collision problem of the PUCCH is avoided.
  • the embodiment of the present invention further provides a user equipment, as described in the following embodiment 14.
  • the principle of the user equipment is similar to that of the sixth embodiment. Implementation, repetition will not be repeated.
  • FIG. 19 is a schematic diagram of the composition of the UE. Referring to FIG. 19, the UE includes:
  • the first determining unit 191 dynamically determines the maximum resource sequence number of the PUCCH according to the load of the E-PDCCH or the dynamic maximum value pre-configured according to the high layer;
  • the second determining unit 192 determines the resource of the PUCCH of the UE according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • the first determining unit 191 obtains the load of the E-PDCCH directly or indirectly through the EPCFICH when determining the maximum resource sequence number of the PUCCH according to the load of the E-PDCCH, or obtains the calculation by using the EPCFICH and the high layer signaling. Determining the load of the E-PDCCH, and then according to the negative of the E-PDCCH The maximum resource number of the PUCCH is determined.
  • the first determining unit 191 firstly receives multiple pre-configured E-PDCCH loads sent by the base station, and then according to the load indication sent by the base station, when determining the maximum resource sequence number of the PUCCH according to the maximum value of the high-level pre-configuration.
  • the information determines its E-PDCCH load, and then determines the maximum resource sequence number of the PUCCH according to the load of the E-PDCCH.
  • the second determining unit 192 determines a resource of the PUCCH of the UE by performing a modulo operation on a maximum resource number of the PUCCH by using a value calculated according to a calculation formula of the PUCCH.
  • the base station is configured to set a maximum resource sequence number of the PUCCH. After calculating the PUCCH resource by using the PUCCH calculation formula, the UE limits the resource number of the calculated resource to the maximum resource number of the preset PUCCH. The spectrum efficiency of the PUCCH is improved, and when the PUCCH resource is calculated by the manner of Embodiment 9, 11, or 13, the resource collision of the PUCCH is also avoided.
  • the embodiment of the present invention further provides a base station, as described in the following embodiment 15.
  • the principle of the problem solved by the base station is similar to the method of the seventh embodiment.
  • FIG. 20 is a schematic diagram of the composition of the base station.
  • the base station includes:
  • Configuration unit 2001 which configures a load multiple
  • the sending unit 2002 sends the load multiple to the UE, so that the UE determines the load of the E-PDCCH according to the load multiple and the load of the distributed mapped E-PDCCH indicated by the received EPCFICH, and according to the E-
  • the payload of the PDCCH determines the maximum resource sequence number of its PUCCH, and determines the resource of its PUCCH according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • the UE can determine the load of the E-PDCCH, according to which the PUCCH resource can be determined, thereby improving the spectrum efficiency of the PUCCH resource.
  • the embodiment of the present invention further provides a base station, as described in the following embodiment 16.
  • the principle of the problem solved by the base station is similar to the method of the embodiment 8.
  • the embodiment of the present invention further provides a base station
  • FIG. 21 is a schematic diagram of the composition of the base station.
  • the base station includes:
  • the configuration unit 2101 is configured to configure a load of multiple E-PDCCHs
  • the sending unit 2102 is configured to send the load and load indication information of the multiple E-PDCCHs to the UE, so that the UE determines the load of the E-PDCCH according to the load indication information, and determines the PUCCH according to the load of the E-PDCCH.
  • the maximum resource sequence number, the resource of the PUCCH is determined according to the calculation formula of the PUCCH and the maximum resource sequence number of the PUCCH.
  • the UE can determine the load of the E-PDCCH, according to which the PUCCH resource can be determined, thereby improving the spectrum efficiency of the PUCCH resource.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user equipment, the program causes the computer to execute Embodiment 1 or Embodiment 3 or Embodiment 5 or implement in the user equipment.
  • An embodiment of the present invention provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the first embodiment or the third embodiment or the fifth embodiment or the sixth embodiment in the user equipment.
  • Method for determining uplink control channel resources
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to execute the uplink control channel described in Embodiment 2, 4, 7 or 8 in the base station Method of determining resources.
  • the embodiment of the invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to perform the determination of the uplink control channel resource according to claim 2, 4, 7 or 8 in the base station. method.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

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Abstract

本发明实施例提供了一种上行控制信道资源的确定方法,其中,所述方法包括:用户设备(UE)接收基站为其增强型下行物理控制信道(E-PDCCH)的映射方式配置的专用参数;UE根据对应其E-PDCCH的映射方式的专用参数以及PUCCH计算公式,确定其上行控制信道(PUCCH)资源。通过本实施例的方法,降低了不同UE的PUCCH资源碰撞,和/或提高了PUCCH的频谱效率。

Description

一种上行控制信道资源的确定方法和装置 技术领域
本发明涉及通信技术, 特别涉及一种上行控制信道资源的确定方法和装置。 背景技术
上行控制信道 (PUCCH, Physical Uplink Control Channel) 用来承载对下行数据 信道 ( PDSCH )的 ACK/NACK ( Positive Acknowledgement/Negative Acknowledgement, 发送成功 /发送失败)反馈, 例如 PUCCH format 1/1 a/lb, 也可以用来承载下行信道的 信道状态信息(CSI, Channel state information),例如 PUCCH format 2/2a/2b。在 Rel.lO 中, 上行控制信道 PUCCH由 CAZAC (Const Amplitude Zero Auto-Corelation, 恒包 络零自相关) 序列作为基序列, 其基序列分成 30个序列组, 序列组标号由 M表示, u e {0,1,2, ...... ,29}; 每个序列组中包含一个或两个基序列, v表示一个序列组中基序列 的标号, v = 0,l。 一个用户的 PUCCH基序列由序列组标号 M和一个序列组中基序列 标号 V共同决定。 相同小区的所有用户采用相同的序列组, 不同小区的用户采用不同 的序列组。 由于一个小区的不同用户采用相同的序列组标号,所以当两个用户占用相 同的上行物理块资源 (PRB, Physical Resource Block) 发送 PUCCH时, 可以通过不 同的循环移位(CS, Cyclic Shift)和 /或不同的正交掩码(OCC, Orthogonal Cover Code) 来保证小区内的 PUCCH正交性, 从而保证较低的小区间干扰。 同时, 多个用户可占 用相同的 CS和 /或 OCC但占用不同的 PRB, 以保证其正交性。 PUCCH所占用的物 理资源 ^U∞H对应 CS、 OCC及 PRB的组合。对于动态的 PDSCH传输, PUCCH format 1/1 a/lb 的物理资源"; >U∞H由调度 PDSCH 的 PDCCH ( Physical Downlink Control
CHannel, 物理下行控制信道) 的 CCE (Control Channel Element, 控制信道元素)索 引动态决定, ^U∞H = «CCE + ^PUCCH '其中《^为 PDCCH的 CCE的起始序号, Λ¾∞Η 为小区公共参数, 由高层信令配置。
随着 EUTRA (Evolved Universal Terrestrial Radio Access, 演进的通用陆地无线 接入) 网络的演进, 出现了许多新的场景, 例如具有相同或不同小区 ID的异构网。 数据信道和控制信道的新的特性应被引入。对于增强型 PDCCH, 需要考虑以下内容: 能够支持增加的控制信道容量; 能够支持频域 ICIC ( Inter-Cell Interference Coordination, 小区间干扰消除技术); 能够提高控制信道资源的空间重利用;
能够支持波束赋形和 /或分集;
能够在新的载波类型上和 MBSFN( Multicast Broadcast Single Frequency Network, 多播广播单频网) 子帧中操作;
能够与传统 UE (User Equipment, 用户设备) 在相同载波上共存。
所期望的特性包括具有调度频率选择的能力和减轻小区间干扰的能力。基于以上 需求, 可以让 E-PDCCH (Enhanced-PDCCH, 增强型 PDCCH) 位于传统的 PDSCH (Physical Downlink Shared Channel,物理下行共享信道)区域,与 PDSCH频分复用, 即至少对于一个用户而言, E-PDCCH与 PDSCH占用不同的物理资源块(PRB pair), 如图 1所示。为提高 E-PDCCH的频谱利用率,单个 PRB可承载多个用户的 E-PDCCH。 E-PDCCH主要有两种映射方案, 也即, 本地映射 (localized mapping)和分布式映射 (distributed mapping), 如图 2所示。 对于本地映射, 希望获得频率选择性调度增益 和频率选择性波束赋形增益, 也即 eNB (基站)能够在具有较好的信道响应的子载波 上传输 E-PDCCH。 对于分布式映射, 希望获得频率分集增益。
与 PDCCH调度的 PDSCH 的 ACK/NACK反馈类似, 对于 E-PDCCH调度的 PDSCH的 ACK/NACK反馈, 依然可通过 PUCCH承载。该 PUCCH的物理资源可以 通过至少包含 Λ¾∞Η及 E-PDCCH 的 E-CCE 的序号等参数动态的隐式决定。 但该
PUCCH的物理资源的推导可能存在如下问题:
1 ) E-PDCCH的两种映射方式, 分布式映射与集中式映射, 其 E-CCE的编号可 以是独立的, 而 PDCCH仅存在一种映射方式, 其 CCE的编号是所有用户统一的。 假设 PDCCH占用前 3个 OFDM符号, 对应的 CCE总数为 20, 不同的用户 PDCCH 占用这 20个 CCE中的不同 CCE,例如用户 1与用户 2占用逻辑上相邻的 CCE, 用户 1占用 #11 CCE,用户 2占用 #12 CCE, 那么这两个用户的 PUCCH资源 ^ueeH不同, 分 别为"; >U∞H = 11 + ^1∞11与 ;∞11 = 12 + Λ¾∞Η。 而对于 E-PDCCH, 若用户 1为分布式 映射,用户 2为集中式映射,用户 1和用户 2分别占用分布式映射搜索空间的 #1 CCE, 集中式映射搜索空间的 #1 CCE, 那么这两个用户 PUCCH 资源 U∞H相同, 均为
"PUCCH = 1 + ^PUCCH ' 即发生了 PUCCH资源碰撞。 因此, E-PDCCH对应的 PUCCH 资源需要解决不同映射方式下的资源碰撞问题。 2)对于相同的映射方式下, E-PDCCH的对应的 PUCCH资源也可能会出现资源 碰撞。 例如集中式映射方式下, 各个用户的搜索空间是独立配置的, 其 E-CCE编号 也是在用户各自的搜索空间中计算的。 那么, 当 2个用户的 E-PDCCH分别占用各自 搜索空间中的相同 CCE序号的资源时, 例如均占用自己搜索空间的 #1 CCE, 那么这 两个用户资源 ;eeH相同, 均为 ;eeH = l + A^eeH, 即发生了 PUCCH资源碰撞。 为 解决这个问题, 可以考虑引入 PRB序号隐式的计算 PUCCH资源。
3 ) 对于集中式映射方式, 为获得频选调度增益, 基站将在用户最优的频带上发 送 E-PDCCH。 考虑到不同用户的最优频带往往不相邻, 因此不同用户的 E-PDCCH 映射的 PRB序号可能差异很大, 例如用户 1的 E-PDCCH映射到第 1个 PRB上, 用 户 2的 E-PDCCH映射到第 37个 PRB上, 那么这两个用户对应的 PUCCH资源可能 是不同的 PRB。 现有的 PUCCH结构, 1个 PRB可承载 3X个 PUCCH, 其中 X为一 个 PRB 内最多可同时支持的 CS 数。 即使某个时刻所调度用户只有这 2 个用户, PUCCH所预留的资源也至少为 2个 PRB, 导致 PUCCH的频谱利用率很低。 这个问 题在 PDCCH中相对没那么严重。 由于某个时刻小区内所有用户的 PDCCH的总开销 可以由 PCFICH( Physical Control Format Indicator Channel,物理控制格式指示符信道) 动态的指示(以 OFDM (Orthogonal Frequency Division Multiplexing, 正交频分复用) 符号为最小单位), 虽不能精确到 CCE, 但也较为有效的限制了 CCE的动态范围, 避免了以上 E-PDCCH的浪费问题。
应该注意, 上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、 完整的说明, 并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发 明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。 发明内容
本发明实施例的目的在于提供一种上行控制信道资源的确定方法和装置,以解决 背景技术所指出的问题。
根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括:
用户设备 (UE) 接收基站为其增强型下行物理控制信道 (E-PDCCH) 的映射方 式配置的专用参数; UE根据对应其 E-PDCCH的映射方式的专用参数以及 PUCCH计算公式,确定其 上行控制信道 (PUCCH) 资源。
根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括:
基站为 UE不同的 E-PDCCH的映射方式配置不同的专用参数;
基站将所述不同的专用参数发送给 UE,或者将对应 UE的 E-PDCCH的映射方式 的专用参数发送给 UE, 以便所述 UE根据对应其 E-PDCCH的映射方式的专用参数 以及 PUCCH计算公式, 确定其上行控制信道 (PUCCH) 资源。
根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括:
UE根据基站配置的专用参数和对应其 E-PDCCH的映射方式的 PUCCH计算公式 确定其 PUCCH资源。
根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括:
基站为 UE不同的 E-PDCCH映射方式配置不同的 PUCCH计算公式,以便 UE根 据基站配置的专用参数和对应其 E-PDCCH 的映射方式的 PUCCH计算公式确定其 PUCCH资源。
根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括:
UE根据 E-PDCCH的负载和其 E-PDCCH的映射方式确定其 PUCCH资源的起点;
UE根据其 PUCCH资源的起点以及 PUCCH计算公式确定其 PUCCH资源。 根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括:
UE 动态的根据 E-PDCCH 的负载或者动态的根据高层预先配置的最大值确定 PUCCH的最大资源序号;
UE根据 PUCCH的计算公式和所述 PUCCH的最大资源序号确定其 PUCCH的资 源。
根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括: 基站配置负载倍数;
基站将所述负载倍数发送给 UE,以便 UE根据所述负载倍数和接收到的 EPCFICH 指示的分布式映射的 E-PDCCH的负载,确定 E-PDCCH的负载,并根据该 E-PDCCH 的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和所述 PUCCH的 最大资源序号确定其 PUCCH的资源。
根据本发明实施例的一个方面,提供了一种上行控制信道资源的确定方法,其中, 所述方法包括:
基站配置多种 E-PDCCH的负载;
基站将所述多种 E-PDCCH的负载和负载指示信息发送给 UE,以便 UE根据所述 负载指示信息确定其 E-PDCCH的负载, 并根据该 E-PDCCH的负载确定其 PUCCH 的最大资源序号, 根据 PUCCH 的计算公式和所述 PUCCH 的最大资源序号确定其 PUCCH的资源。
根据本发明实施例的一个方面, 提供了一种用户设备 (UE), 其中, 所述 UE包 括:
接收单元, 其接收基站为所述 UE的增强型下行物理控制信道(E-PDCCH) 的映 射方式配置的专用参数;
确定单元,其根据对应所述 UE的 E-PDCCH的映射方式的专用参数以及 PUCCH 计算公式, 确定所述 UE的上行控制信道 (PUCCH) 资源。
根据本发明实施例的一个方面, 提供了一种基站, 其中, 所述基站包括: 配置单元, 其为 UE不同的 E-PDCCH的映射方式配置不同的专用参数; 发送单元, 其将所述不同的专用参数发送给 UE, 或者将对应 UE的 E-PDCCH的 映射方式的专用参数发送给 UE, 以便所述 UE根据对应其 E-PDCCH的映射方式的 专用参数以及 PUCCH计算公式, 确定其上行控制信道 (PUCCH) 资源。
根据本发明实施例的一个方面, 提供了一种用户设备 (UE), 其中, 所述 UE包 括:
确定单元, 其根据基站配置的专用参数和对应所述 UE的 E-PDCCH的映射方式 的 PUCCH计算公式确定所述 UE的 PUCCH资源。
根据本发明实施例的一个方面, 提供了一种基站, 其中, 所述基站包括: 配置单元, 其为 UE不同的 E-PDCCH映射方式配置不同的 PUCCH计算公式, 以便 UE根据基站配置的专用参数和对应其 E-PDCCH的映射方式的 PUCCH计算公 式确定其 PUCCH资源。
根据本发明实施例的一个方面, 提供了一种用户设备 (UE), 其中, 所述 UE包 括:
第一确定单元, 其根据 E-PDCCH的负载和所述 UE的 E-PDCCH的映射方式确 定所述 UE的 PUCCH资源的起点;
第二确定单元, 其根据所述 UE的 PUCCH资源的起点以及 PUCCH计算公式确 定所述 UE的 PUCCH资源。
根据本发明实施例的一个方面, 提供了一种用户设备 (UE), 其中, 所述 UE包 括:
第一确定单元, 其动态的根据 E-PDCCH的负载或者动态的根据高层预先配置的 最大值确定 PUCCH的最大资源序号;
第二确定单元, 其根据 PUCCH的计算公式和所述 PUCCH的最大资源序号确定 所述 UE的 PUCCH的资源。
根据本发明实施例的一个方面, 提供了一种基站, 其中, 所述基站包括: 配置单元, 其配置负载倍数;
发送单元, 其将所述负载倍数发送给 UE, 以便 UE根据所述负载倍数和接收到 的 EPCFICH指示的分布式映射的 E-PDCCH的负载, 确定 E-PDCCH的负载, 并根 据该 E-PDCCH的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和 所述 PUCCH的最大资源序号确定其 PUCCH的资源。
根据本发明实施例的一个方面, 提供了一种基站, 其中, 所述基站包括: 配置单元, 其配置多种 E-PDCCH的负载;
发送单元, 其将所述多种 E-PDCCH的负载和负载指示信息发送给 UE, 以便 UE 根据所述负载指示信息确定其 E-PDCCH的负载, 并根据该 E-PDCCH的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和所述 PUCCH的最大资源序号 确定其 PUCCH的资源。
根据本发明实施例的一个方面, 提供了一种计算机可读程序, 其中, 当在用户设 备中执行该程序时,该程序使得计算机在所述用户设备中执行前述在 UE中执行的上 行控制信道资源的确定方法。 根据本发明实施例的一个方面, 提供了一种存储有计算机可读程序的存储介质, 其中,该计算机可读程序使得计算机在用户设备中执行前述在 UE中执行的上行控制 信道资源的确定方法。
根据本发明实施例的一个方面, 提供了一种计算机可读程序, 其中, 当在基站中 执行该程序时,该程序使得计算机在所述基站中执行前述在基站中执行的上行控制信 道资源的确定方法。
根据本发明实施例的一个方面, 提供了一种存储有计算机可读程序的存储介质, 其中,该计算机可读程序使得计算机在基站中执行前述在基站中执行的上行控制信道 资源的确定方法。
本发明实施例的有益效果在于:通过本实施例的方法,降低了不同 UE的 PUCCH 资源碰撞, 和 /或提高了 PUCCH的频谱效率。
参照后文的说明和附图,详细公开了本发明的特定实施方式, 指明了本发明的原 理可以被采用的方式。应该理解, 本发明的实施方式在范围上并不因而受到限制。在 所附权利要求的精神和条款的范围内,本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更多 个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中的 特征。
应该强调, 术语"包括 /包含"在本文使用时指特征、 整件、 步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。 附图说明
参照以下的附图可以更好地理解本发明的很多方面。附图中的部件不是成比例绘 制的, 而只是为了示出本发明的原理。 为了便于示出和描述本发明的一些部分, 附图 中对应部分可能被放大或缩小。在本发明的一个附图或一种实施方式中描述的元素和 特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外,在 附图中, 类似的标号表示几个附图中对应的部件, 并可用于指示多于一种实施方式中 使用的对应部件。 在附图中:
图 1是 PDSCH、 PDCCH与 E-PDCCH的示意图;
图 2a是 E-PDCCH的分布式映射方式的示意图; 图 2b是 E-PDCCH的集中式映射方式的示意图;
图 3是实施例 1的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 4是实施例 2的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 5是实施例 3的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 6是实施例 4的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 7是实施例 5的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 8a是不同 UE的 E-PDCCH在集中式映射方式下的 eCCE编号示意图; 图 8b是不同 UE的 E-PDCCH在集中式映射方式下的 PUCCH资源示意图; 图 9是不同映射方式的 E-PDCCH的 eCCE的编号示意图;
图 10是实施例 6的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 11a 是不同 UE的 E-PDCCH在集中式映射方式下 E-PDCCH映射示意图;
图 lib是不同 UE的 E-PDCCH在集中式映射方式下的 PUCCH资源示意; 图 12是实施例 7的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 13是实施例 8的上行控制信道 (PUCCH) 资源的确定方法的流程图; 图 14是实施例 9的用户设备的组成示意图;
图 15是实施例 10的基站的组成示意图;
图 16是实施例 11的用户设备的组成示意图;
图 17是实施例 12的基站的组成示意图;
图 18是实施例 13的用户设备的组成示意图;
图 19是实施例 14的用户设备的组成示意图;
图 20是实施例 15的基站的组成示意图;
图 21是实施例 16的基站的组成示意图。 具体实施方式
参照附图, 通过下面的说明书, 本发明实施例的前述以及其它特征将变得明显。 这些实施方式只是示例性的, 不是对本发明的限制。为了使本领域的技术人员能够容 易地理解本发明的原理和实施方式, 本发明的实施方式以 E-PDCCH调度的 PDSCH 的 ACK/NACK反馈为例进行说明, 但可以理解, 本发明实施例并不限于上述场景, 对于涉及确定 PUCCH资源的其他场景均适用。 实施例 1
本发明实施例提供了一种上行控制信道 (PUCCH) 资源的确定方法。 图 3是该 方法的流程图, 请参照图 3, 该方法包括:
步骤 301 : 用户设备 (UE)接收基站为其增强型下行物理控制信道(E-PDCCH) 的映射方式配置的专用参数;
其中, 这里的专用参数可以是小区专用 (cell-specific)公共参数, 也可以是用户 专用 (UE-specific)参数, 是由高层半静态配置的。 在以下的说明中, 该专用参数表 示为 W^eeH, 但本发明实 ffi例并不以 作为限制。
步骤 302: UE根据对应其 E-PDCCH的映射方式的专用参数以及 PUCCH计算公 式, 确定其上行控制信道 (PUCCH) 资源。
在本实施例中, 基站为用户设备的不同 E-PDCCH的映射方式配置了不同的专用 参数 Λ¾∞Η, 也即分布式映射与集中式映射的 E-PDCCH 对应的 PUCCH 资源的 Λ¾∞Η不同。 由此, 即便不同 UE在各自的 E-PDCCH的映射方式下所占用的搜索空 间的 CCE的编号相同, 也会由于采用了不同的专用参数 N^eeH而不会发生 PUCCH 资源碰撞的问题。
在本实施例中, 并不限制确定 PUCCH资源的 PUCCH计算公式, 例如, 可以采 用现有的 PUCCH计算公式:
"PUCCH = "CCE + ^PUCCH;
其中, rw 为 E-PDCCH的 CCE的起始序号, N ra为基站为不同 E-PDCCH映 射方式配置的专用参数。假设基站为集中式映射方式的 E-PDCCH配置的该专用参数 为 N^H calized, 基站为分布式映射方式的 E-PDCCH配置的该专用参数为 C ed, 则用户 1 的 PUCCH 资源^;^ ^^ + ^^^^, 用户 2 的 PUCCH 资源 UCCH
Figure imgf000011_0001
由此可以避免 PUCCH资源冲 以上公式只是举例说明, 本实施例并不以此作为限制。
在本实施例中, 基站在为 UE不同的 E-PDCCH映射方式配置了不同的专用参数 后, 基站可以将对应 UE的 E-PDCCH的映射方式的专用参数发给 UE, 也可以将两 种映射方式对应的专用参数全部发送给 UE, 由此, UE可以根据其 E-PDCCH的映射 方式, 确定对应的专用参数。 因此, 在本实施例中, 步骤 301可以包括: UE接收基站发送的对应其 E-PDCCH的映射方式的专用参数; 或者
UE 接收基站发送的为 E-PDCCH 的不同映射方式配置的专用参数, 根据其 E-PDCCH的映射方式确定其专用参数。
也就是说, 基站可以将为不同 E-PDCCH的映射方式配置的不同的专用参数全部 发送给 UE, UE根据其自己的 E-PDCCH的映射方式确定对应的专用参数。 或者, 基 站可以仅将对应该 UE的 E-PDCCH的映射方式的专用参数发送给该 UE,由此 UE可 以直接获得对应其 E-PDCCH的映射方式的专用参数。
通过本实施例的方法, 对应不同的 E-PDCCH映射方式采用不同的专用参数, 降 低了不同 UE的 PUCCH资源碰撞问题。
实施例 2
本发明实施例还提供了一种上行控制信道资源的确定方法, 该方法是实施例 1 的方法对应的基站侧的处理。 图 4是该方法的流程图, 请参照图 4, 该方法包括: 步骤 401 : 基站为 UE不同的 E-PDCCH的映射方式配置不同的专用参数; 步骤 402: 基站将所述不同的专用参数发送给 UE, 或者将对应 UE的 E-PDCCH 的映射方式的专用参数发送给 UE, 以便所述 UE根据对应其 E-PDCCH的映射方式 的专用参数以及 PUCCH计算公式, 确定其上行控制信道 (PUCCH) 资源。
在本实施例中, 由于 E-PDCCH可能是分布式映射的, 也可能是集中式映射的, 因此本实施例的基站对分布式映射的 E-PDCCH和集中式映射的 E-PDCCH分别配置 不同的专用参数, 如此一来, 采用分布式映射的 E-PDCCH的用户和采用集中式映射 的 E-PDCCH采用不同的专用参数计算其 PUCCH资源, 可以降低 PUCCH资源的碰 撞概率。
在本实施例中, 由于 UE侧的处理已经在实施例 1中做了说明, 在此不再赘述。 通过本实施例的方法, 基站为不同的 E-PDCCH的映射方式配置了不同的专用参 数, 避免了不同 UE的 PUCCH资源碰撞的问题。
实施例 3
本发明实施例还提供了一种上行控制信道资源的确定方法。图 5是该方法的流程 图, 请参照图 5, 该方法包括:
步骤 501: UE根据基站配置的专用参数和对应其 E-PDCCH的映射方式的 PUCCH 计算公式确定其 PUCCH资源。 在本实施例中, 可以采用相同的专用参数 N ∞H, 但采用不同的 PUCCH计算公 式。 也即, 基站为 UE不同的 E-PDCCH映射方式配置了不同的 PUCCH计算公式, 以使得占用不同 E-PDCCH物理资源的且采用不同的 E-PDCCH映射方式的 UE在计 算 PUCCH资源时不会出现碰撞。 当然, 本实施例并不以此作为限制, 例如, 也可以 结合实施例 1和实施例 2的方法, 基站也可以同时为不同 E-PDCCH的映射方式配置 不同的专用参数 Λ¾∞Η , UE 根据其 E-PDCCH 的映射方式, 采用相应的专用参数 N^CCH和相应的 PUCCH计算公式来确定其 PUCCH资源。
在一个实施例中, 基站为集中式映射的 E-PDCCH配置了如下的 PUCCH计算公 式:
N pUCCH + Z x NRB -- Y x nCCE;
当 UE的 E-PDCCH的映射方式为集中式映射时, 该 UE可以根据以上公式确定 其 PUCCH资源。其中, N eeH为高层半静态配置的专用参数; N x为所述 E-PDCCH 占用的物理资源块(PRB)序号; Z为分布式映射时每个 PRB内承载的最大下行控制 信息 (DCI) 数; ; Γ为分布式映射时每个 PRB内承载的最大 DCI数与集中式映射时 每个 PRB内承载的最大 DCI数的比值; 优选的, Z为 8或 16, Y=Z/X。 nCCE为每个 PRB内的控制信道元素(eCCE)编号。其中, = 0,1,...X -1, 其可以是 E-PDCCH 对应的最低 eCCE编号, 也可以是 E-PDCCH对应的与解调参考符号端口 (DM-RS port) 相关联的 eCCE编号。
在一个实施例中, 基站为分布式映射的 E-PDCCH配置了如下的 PUCCH计算公 式:
、 丁
当 UE的 E-PDCCH的映射方式为分布式映射时, 该 UE可以根据以上公式确定 其 PUCCH资源。其中, N eeH为高层半静态配置的专用参数; Λ^βχ为所述 E-PDCCH 占用的 PRB序号; Z为分布式映射时每个 PRB内承载的最大 DCI数; 为每个 PRB 内的资源粒子组 (eREG) 或 eCCE或 DCI编号。 其中, = Ο,Ι,...Ζ -l, 其可以是 E-PDCCH对应的最低 eCCE编号, 也可以是 E-PDCCH对应的与 DM-RS port相关联 的 eCCE编号。
以上基站分别为集中式映射和分布式映射的 E-PDCCH配置的 PUCCH的计算公 式也只是举例说明, 本发明实施例并不以此作为限制。在具体实施时, 基站也可以考 虑其他条件为不同的 E-PDCCH的映射方式配置其他的不同的 PUCCH计算公式, 只 要是不同 E-PDCCH的映射方式对应的 PUCCH计算公式不同, 都包含于本发明的保 护范围。
例 如 , 对 于 集 中 式 映 射 的 E-PDCCH , 可 以 配 置 公 式 n PUCCH ~ N 1 v PUrCrCHH + 1 Z ^x ^ N i R=Bex + 1 Yx ^ n ,l rCrCEF + n4P, 对于分布式映射的 E-PDCCH, 可以配置 公式 " CCH = N CCH +Zx N^ex + nCCE + P。 其中 为 E-PDCCH所对应的天线端口 (DM-RS) 的序号, 例如 E-PDCCH对应的 DM-RSport7贝 U P=0, 对应的 DM-RS port 10则^ =3。
再 例 如 , 对 于 集 中 式 映 射 的 E-PDCCH , 可 以 配 置 公 式 n (1) - NL' „ + Z X N^ex + Yx + ARI , 对于分布式映射的 E-PDCCH, 可以配置 公式 n CCH = N CCH + Zx N ex + nCCE + ARI , 其中, ARI为高层配置的其他参数。
在以上两个举例中, Z X N ex也是可选的。
通过本实施例的方法, 对应不同的 E-PDCCH的映射方式采用不同的 PUCCH计 算公式, 降低了不同 UE的 PUCCH资源碰撞问题。
实施例 4
本发明实施例还提供了一种上行控制信道资源的确定方法, 该方法是实施例 3 的方法对应的基站侧的处理。 图 6是该方法的流程图, 请参照图 6, 该方法包括: 步骤 601: 基站为 UE不同的 E-PDCCH映射方式配置不同的 PUCCH计算公式, 以便 UE根据基站配置的专用参数和对应其 E-PDCCH的映射方式的 PUCCH计算公 式确定其 PUCCH资源。
其中, 本发明实施例并不限制基站所配置的 PUCCH计算公式的类型, 只要保证 其为不同的 E-PDCCH映射方式配置的 PUCCH计算公式不同, 都包含于本发明实施 例的保护范围。
其中, 对于基站为不同的 E-PDCCH映射方式配置的 PUCCH计算公式的举例已 经在实施例 3中做了说明, 其内容被合并于此, 在此不再赘述。
通过本实施例的方法, 基站为不同的 E-PDCCH映射方式配置了不同的 PUCCH 计算公式, 使得不同的 E-PDCCH映射方式的 UE可以根据不同的 PUCCH计算公式 计算其 PUCCH资源, 由此避免了 PUCCH资源碰撞的问题。
实施例 5 本发明实施例还提供了一种上行控制信道资源的确定方法。图 7是该方法的流程 图, 请参照图 7, 该方法包括:
步骤 701 : UE根据 E-PDCCH的负载和其 E-PDCCH的映射方式确定其 PUCCH 资源的起点;
步骤 702: UE根据其 PUCCH资源的起点以及 PUCCH计算公式确定其 PUCCH 资源。
在本实施例中, 为了对不同的 E-PDCCH映射方式加以区分, 以避免资源碰撞, 基站为不同的 E-PDCCH映射方式配置不同的 PUCCH资源起点, 使得其中一种映射 方式的起点紧邻另一种映射方式的 PUCCH的可能的最大资源序号。 由此, UE在计 算 PUCCH资源时, 可以根据 E-PDCCH的负载 (也即总开销) 和其 E-PDCCH的映 射方式确定其 PUCCH资源的起点, 由于对应不同的 E-PDCCH的映射方式, 是基于 不同的 PUCCH资源的起点计算其 PUCCH资源, 如此, 避免了不同 UE的 PUCCH 资源的碰撞。
在一个实施例中, 基站通过物理控制格式指示符信道(EPCFICH)指示分布式映 射的 E-PDCCH的总开销, 例如在每个传输时间间隔 (TTI) 指示 eCCE数或者 PRB 数。 同时基站配置集中式映射的 E-PDCCH 对应的 PUCCH 资源紧挨分布式映射的 E-PDCCH对应的 PUCCH资源的最大索引之后,则 UE据此可以确定其 PUCCH资源 的起点。 例如, 如果 UE的 E-PDCCH是分布式映射, 则 UE确定其 PUCCH资源的 起点为 0; 如果 UE的 E-PDCCH是集中式映射,则 UE确定其 PUCCH资源的起点为 分布式映射的 E-PDCCH对应的 PUCCH资源的最大索引。
例如, 假设 EPCFICH指示的 eCCE数为 N=D D; 或 EPCFICH指示的 PRB数 为 DCCH , eCCE ¾ = XNZCCH ' 为每个 PRB内承载的 eCCE数。 那么, 对于 E-PDCCH的映射方式为分布式映射方式的 UE, 其 PUCCH资源可通过以下公 式计算确定: CCH = CCH + ncc 对于 E-PDCCH 的映射方式为集中式映射方式的 UE, 其 PUCCH 资源可通过以下公式计算确定: n CCH = N UCCH + nCCE + NE D= 或
+ Y MINDEX 在本实施例中, 与实施例 1和实施例 3类似, 以上 PUCCH的计算公式也只是举 例说明, 本实施例并不以此作为限制, 任何可以用于计算 PUCCH资源的计算公式都 包含于本发明的保护范围。 根据本实施例的方法, 对应不同的 E-PDCCH的映射方式采用不同的 PUCCH的 资源起点, 降低了不同 UE的 PUCCH资源碰撞问题。
为了使实施例 1、 实施例 3和实施例 5的方法更加清楚易懂, 以下结合图 8a、 图 8b以及图 9对实施例 1、 3、 5的方法进行说明。
图 8a和图 8b是不同 UE的 E-PDCCH在集中式映射方式下 eCCE编号及相应的
PUCCH资源示意图。如图 8a和图 8b所示, UE1与 UE2虽然占用了不同的物理资源, 但由于位于各自 的搜索空间的 CCE 索引位置相同, 导致通过公式 jeeH = eE + A^eeH计算得到的 PUCCH资源相同, 从而导致了资源碰撞。为了解决 这一问题, 可以将 PRB序号引入, 例如, 将以上公式修改为:
A index
"PUCCH —丄、 PUCCH ^ ^ i RB 丁 nCCE
其中, N x为 E-PDCCH所占用的 PRB的序号, nrrF为每个 PRB内的 eCCE编 号, 为每个 PRB内承载的 eCCE数, 优选的, X=2 or 3 or 4。 那么, 以 X=4为例, UE1的对应其 E-PDCCH的 PUCCH资源为: n CCH = UCCH + , UE2的对应其 E-PDCCH的 PUCCH资源为: = N^cai + 80 + 1。 其中, = 0, 1, ...X -1, 其 可以为 E-PDCCH对应的最低 eCCE编号, 也可以为 E-PDCCH对应的与 DM-RS端 口相关联的 eCCE编号。
然而,虽然引入 PRB的序号能解决 E-PDCCH的映射方式为集中式映射的 UE之 间的 PUCCH的资源碰撞,但由于《CC£的标号对于不同的 E-PDCCH的映射方式是独 立编号的, 因此不能解决 E-PDCCH的映射方式不同的 UE之间的 PUCCH的资源碰 撞。
图 9是不同的 E-PDCCH映射方式下 eCCE编号示意图。 如图 9所示, UE1与 UE2采用了不同的映射方式, UE1为分布式映射, UE2为集中式映射。 UE1与 UE2 虽然占用了不同的物理资源, 但由于位于各自的搜索空间的 CCE索引位置相同, 导 致通过 ^υ∞Η = «∞Ε + Λ¾∞Η计算得到的 PUCCH资源相同, 从而导致了资源碰撞。
鉴于图 8a、 8b和图 9的场景下 PUCCH的资源碰撞的问题, 提出了本发明实施 例的方法。
通过实施例 1的方法, 如果不同的 E-PDCCH映射方式采用不同的 Λ¾∞Η, 则可 以避免上述两种场景下的 PUCCH资源冲突问题。
通过实施例 3的方法, 如果不同的 E-PDCCH映射方式采用相同的 N eeH, 但采 用不同的 PUCCH计算公式, 也可以使得占用不同 E-PDCCH物理资源的且采用不同 的 E-PDCCH映射 /传输方式的用户在计算 PUCCH资源时不会出现碰撞。
通过实施例 5的方法, 如果分布式映射的 E-PDCCH的总开销可实时获得, 例如 由 EPCFICH在每个 TTI指示, 那么, 可以通过将集中式映射的 E-PDCCH对应的 PUCCH资源紧挨分布式映射的 E-PDCCH对应的 PUCCH资源最大索引之后。 由于 不同 E-PDCCH映射方式的 PUCCH资源起点不同, 对于分布式映射方式的 UE, 其 PUCCH资源可计算为 CH = N CCH + nCCE, 对于集中式映射方式的 UE, 其 PUCCH资 PT + ¾ N V> distrihuted ]\ V> + Y NindeX 由 此也避免了图 8和图 9场景下的资源碰撞。
实施例 6
本发明实施例还提供了一种上行控制信道资源的确定方法。 图 10是该方法的流 程图, 请参照图 10, 该方法包括:
步骤 1001 : UE动态的根据 E-PDCCH的负载或者动态的根据高层预先配置的最 大值确定 PUCCH的最大资源序号;
步骤 1002: UE根据 PUCCH的计算公式和所述 PUCCH的最大资源序号确定其
PUCCH的资源。
在本实施例中,基站预先设定一个最大资源序号, UE在确定其 PUCCH资源(也 即由 E-PDCCH调度的 PDSCH的 ACK/NACK反馈所需要的 PUCCH资源)时,使得 其 PUCCH的资源序号不超过该预先设定的最大资源序号, 由此也能避免资源碰撞的 问题。
其中, 该最大资源序号可以动态的根据 E-PDCCH的负载确定, 也可以动态的根 据高层预先配置的最大值确定, 本实施例并不以此作为限制。其中, 高层预先配置的 最大值也考虑了 E-PDCCH的负载。
其中, 动态的根据 E-PDCCH 的负载确定该最大资源序号的方式中, E-PDCCH 的负载可根据 EPCFICH直接或间接获得, 也可根据 EPCFICH与高层信令联合获得。 例如, EPCFICH可指示所有 UE的 E-PDCCH对应的 eCCE数, 即包括分布式映射和 集中式映射的 eCCE总数, 由此, UE可根据 EPCFICH直接或间接获得该 E-PDCCH 的负载, 进而可以依此确定 PUCCH的最大资源序号。 再例如, EPCFICH也可仅指 示所有分布式映射的 UE的 E-PDCCH对应的 eCCE数 N: „, 那么可以通过高层 配置参数 L, 以 Nl CCH = L x N†=表示所有 UE的 E-PDCCH的 eCCE数, 由此,
UE可根据 EPCFICH与高层信令联合获得了 E-PDCCH的负载, 进而可以依此确定
PUCCH的最大资源序号。
其中,动态的根据高层预先配置的最大值确定该最大资源序号的方式中, 如果基 站不向 UE发送 EPCFICH,也即没有 EPCFICH,那么可以通过高层配置多种 N CCH, 而在 E-PDCCH的 DCI中增加或复用已有比特来动态指示采用哪个 N rf eOT。 由此,
UE根据高层信令与动态指示确定了 E-PDCCH的负载, 进而可以依此确定 PUCCH 的最大资源序号。
在步骤 1002的一个实施方式中, UE可以通过将根据 PUCCH的计算公式计算获 得的值对所述 PUCCH的最大资源序号进行取模运算, 来确定其 PUCCH的资源。
在步骤 1002的另外一个实施方式中, 为了避免取模(求余)所增加的碰撞概率, 还可以增加其他项。
为使本实施例的方法更加清楚易懂,以下结合图 11对本实施例的方法进行说明。 如图 11所示, 当某个时刻, 基站仅调度了 3个 UE, 也即, 为 3个 UE发送了 E-PDCCH调度 PDSCH传输, 若这 3个 UE的 E-PDCCH分别在相隔较远的 PRB内 传输, 如图 11所示, 分别在第 1个 PRB, 第 5个 PRB及第 9个 PRB内传输, 那么 这 3个 UE所对应的 PUCCH资源为 n CCH = N CCH + 4 + 1 , n CCH = N CCH + 20 + 2及 n N^JjrrH +36 + 2。假设每个 PRB内可以支持最多 6个 CS, 3个 OCC, 即
PRB可以承载 18个不同的《 ea/, 为简化说明, 假设 A¾eOT = 18, 那么这 3个 UE 的 PUCCH所对应的 PRB分别为第 2个 PRB, 第 3个 PRB及第 4个 PRB。 而 3个
PRB实际最多可容纳 54个 UE,但在本例子中,仅有 3个 UE,依然占用了 3个 PRB,
PUCCH的频谱率用率非常低。
为了有效提高效率,可通过本实施例的方法限制 PUCCH的资源序号不超过预先 设定的最大资源序号。 该最大资源序号可以动态的根据 E-PDCCH的负载确定, 或动 态的根据高层预先配置的最大值确定。
其中, 动态的根据 E-PDCCH 的负载确定该最大资源序号的方式中, E-PDCCH 的负载可根据 EPCFICH直接或间接获得, E-PDCCH的负载可根据 EPCFICH与高层 信令联合获得。其中,动态的根据高层预先配置的最大值确定该最大资源序号的方式 中, 该最大资源序号可以由高层信令与动态指示信息联合获得。 例如,假设最大资源序号为 N rf eOT-l,那么,可通过求余的方式来确定 PUCCH 资源, 由此限制了 PUCCH的资源序号不超过预先设定的最大资源序号。 也即,
"PUCCH = ( 1 N * P(lU)CCH +Xx厶 N1、 RinBdex + nCCE ) JmodN 1 elPoaDdCCH
假设 N' CCH =20, 那么 3个 UE的 PUCCH资源分别为:
Figure imgf000019_0001
U]CCH = {NplfccH +20 + 2) mod 20-0;
ccH = {N CCH + 36 + 2) mod 20 = 16。
由此, 3个 UE的 PUCCH均映射到同一个 PRB内的不同的 OCC或 CS资源上, 提高了 PUCCH的频谱效率。
在另外一个实施例中, 为了避免由求余所增加的碰撞概率, 可以增加其它项, 例 如, 增加对 ;^^向下取整, 也即:
Figure imgf000019_0002
其中 []中的函数可以采用与现有技术计算 相同的公式, 例如 Λ^^^ +Μ^ , 也可以采用实施例 1 3 5 中所给出的公式及其方法, 例如, 对于分布式映射, 为 ^ucc" + «CCE' 对于集中式映射, 为 A^^H alizf:d+«∞E, 或者其它任何公式, 例如 N UCCH+nCCE+nAP, 其中《 为 E-PDCCH所对应的天线端口 (DM-RS) 的序号, 或 N CCH+nCCE+ARI , 其中 ARI为高层配置的参数。 那么, 一种优选的方式为:
(「 + Ί Hiod Ν ePDCCH + I \ N puccH + ~*~ Ί ^ Ϊ)^0^ J N ePDCCH + L J Z J + J N ePDCCH 假设 3个 UE nCCE分别为 1 19和 21, 对应的 DM-RS port分别为 port 7 port 9 和 port7, 那么根据式(b), 假设 N^^^S'A^^^^ZO这 3个 UE的 ^分别为:
N puccH +l + 0 mod 20 + w+1 /20 + 0Jmod20 = 6 !JCCH +19 /20 + 2)mod20 = 9 ccH + o od20 = 7
Figure imgf000019_0003
由此, 3个 UE的 PUCCH均映射到同一个 PRB内的不同的 OCC或 CS资源上, 提高了 PUCCH的频谱效率。
若 UE1和 UE3均只根据第一项, 即 [....] dCOT计算 则 均为 6 UE的 PUCCH资源发生碰撞, 由于增加了对^=^向下取整,第二项的值不同, 从而 使得 UE避免了碰撞。 若 UE2和 UE3均根据式(a)计算, 即第一项与第二项括号内 的表达式完全相同, 则 均为 7, UE的 PUCCH资源发生碰撞, 由于式(b ) 中第 二项与第一项括号内的表达式不同, 避免了 UE间的 PUCCH的资源碰撞。
在本实施例中,并不限制 PUCCH的计算公式及对应的 PUCCH资源的计算方法, 例如, 可以通过本发明的实施例 1、 实施例 3或实施例 5的方法来实现, 只要使得计 算出来的 PUCCH资源的资源序号不大于预先设定的 PUCCH的最大资源序号, 都包 含于本发明的保护范围之内。
通过本实施例的方法, 预先设定 PUCCH 的最大资源序号, 使得计算出来的
PUCCH资源的资源序号不超过该预定值, 由此提高了 PUCCH的频谱效率。 当通过 实施例 1、 实施例 3或者实施例 5的方法来计算 PUCCH资源时, 同时可以避免不同
UE的资源碰撞问题。
实施例 7
本发明实施例还提供了一种上行控制信道资源的确定方法, 该方法是实施例 6的 一个实施方式对应的基站侧的处理。 图 12是该方法的流程图, 请参照图 12, 该方法 包括:
步骤 1201 : 基站配置负载倍数;
步骤 1202: 基站将所述负载倍数发送给 UE, 以便 UE根据所述负载倍数和接收 到的 EPCFICH指示的分布式映射的 E-PDCCH的负载, 确定 E-PDCCH的负载, 并 根据该 E-PDCCH的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式 和所述 PUCCH的最大资源序号确定其 PUCCH的资源。
本实施例是对应实施例 6中, UE根据 EPCFICH与高层信令联合获得 E-PDCCH 负责的实施方式。
在本实施例中,如果 EPCFICH仅指示所有分布式映射的 UE的 E-PDCCH对应的 eCCE数 N=d, 那么基站可以预先配置一个负载倍数^ 并通过高层信令将该负 载倍数发送给 UE, UE根据该负载倍数 L和从 EPCFICH中获得的 N^„, 确定 E-PDCCH的负载 N CCH = L x , 以此表示所有 UE的 E-PDCCH的 eCCE数。 由此 UE可以确定 E-PDCCH的负载, 并据此确定 PUCCH的最大资源序号, 并结合 根据 PUCCH的计算公式确定其 PUCCH的资源, 由此提高了 PUCCH的频谱效率。
在本实施例中, 已经对该实施方式下 UE侧的处理进行了说明, 其内容被合并于 此, 在此不再赘述。
实施例 8
本发明实施例还提高了一种上行控制信道资源的确定方法, 该方法是实施例 6的 另外一个实施方式对应的基站侧的处理。 图 13是该方法的流程图, 请参照图 13, 该 方法包括:
步骤 1301 : 基站配置多种 E-PDCCH的负载;
步骤 1302: 基站将所述多种 E-PDCCH的负载和负载指示信息发送给 UE, 以便 UE根据所述负载指示信息确定其 E-PDCCH的负载, 并根据该 E-PDCCH的负载确 定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和所述 PUCCH的最大资源 序号确定其 PUCCH的资源。
在本实施例中, 如果没有 EPCFICH, 那么基站可以通过高层配置多种 E-PDCCH 的负载 N rf COT, 而在发送给 UE的 E-PDCCH的 DCI中增加或复用已有比特来动态 指示该 UE采用哪种 N:iP a D d CCH。由此 UE可以确定 E-PDCCH的负载,并据此确定 PUCCH 的最大资源序号, 并结合根据 PUCCH的计算公式确定其 PUCCH的资源, 由此提高 了 PUCCH的频谱效率。
在本实施例中, 已经对该实施方式下 UE侧的处理进行了说明, 其内容被合并于 此, 在此不再赘述。
本发明实施例还提供了一种用户设备, 如下面的实施例 9所述, 由于该用户设备 解决问题的原理与实施例 1的方法类似,因此其具体的实施请参照实施例 1的方法的 实施, 重复之处不再赘述。
实施例 9
本发明实施例还提供了一种用户设备 (UE)。 图 14是该 UE的组成示意图, 请 参照图 14, 该 UE包括:
接收单元 141, 其接收基站为所述 UE的增强型下行物理控制信道 (E-PDCCH) 的映射方式配置的专用参数;
确定单元 142, 其根据对应所述 UE 的 E-PDCCH 的映射方式的专用参数以及 PUCCH计算公式, 确定所述 UE的上行控制信道 (PUCCH) 资源。
其中, 所述接收单元 101用于: 接收基站发送的对应其 E-PDCCH的映射方式的 专用参数; 或者, 接收基站发送的为 E-PDCCH的不同映射方式配置的专用参数, 根 据其 E-PDCCH的映射方式确定其专用参数。
通过本实施例的 UE, 基站为不同的 E-PDCCH的映射方式配置了不同的专用参 数,不同的 E-PDCCH的映射方式下的 UE根据该不同的专用参数计算得到的 PUCCH 资源不同, 由此避免了 PUCCH的资源碰撞问题。
本发明实施例还提供了一种基站, 如下面的实施例 10所述, 由于该基站解决问 题的原理与实施例 2的方法类似, 因此其具体的实施请参照实施例 2的方法的实施, 重复之处不再赘述。
实施例 10
本发明实施例还提供了一种基站, 图 15是该基站的组成示意图, 请参照图 15, 该基站包括:
配置单元 151, 其为 UE不同的 E-PDCCH的映射方式配置不同的专用参数; 发送单元 152,其将所述不同的专用参数发送给 UE,或者将对应 UE的 E-PDCCH 的映射方式的专用参数发送给 UE, 以便所述 UE根据对应其 E-PDCCH的映射方式 的专用参数以及 PUCCH计算公式, 确定其上行控制信道 (PUCCH) 资源。
通过本实施例的基站, 为不同的 E-PDCCH的映射方式配置了不同的专用参数, 不同的 E-PDCCH的映射方式下的 UE根据该不同的专用参数计算得到的 PUCCH资 源不同, 由此避免了 PUCCH的资源碰撞问题。
本发明实施例还提供了一种用户设备, 如下面的实施例 11所述, 由于该用户设 备解决问题的原理与实施例 3的方法类似,因此其具体的实施请参照实施例 3的方法 的实施, 重复之处不再赘述。
实施例 11
本发明实施例还提供了一种用户设备 (UE), 图 16是该 UE的组成示意图, 请 参照图 16, 该 UE包括:
确定单元 161, 其根据基站配置的专用参数和对应所述 UE的 E-PDCCH的映射 方式的 PUCCH计算公式确定所述 UE的 PUCCH资源。
在一个实施例中, 当 UE的 E-PDCCH的映射方式为集中式映射时, 所述确定单 元 161根据基站为所述 UE配置的以下公式确定所述 UE的 PUCCH资源:
n puccH ~ N puccH + Z x Ν · RB -- Υ χ nCCE
其中, Λ^ΙΓΥΉ为高层半静态配置的专用参数; A 为所述 E-PDCCH 占用的物 理资源块(PRB)序号; Z为分布式映射时每个 PRB内承载的最大下行控制信息(DCI) 数; ; Γ为分布式映射时每个 PRB内承载的最大 DCI数与集中式映射时每个 PRB内承 载的最大 DCI数的比值; 为每个 PRB内的控制信道元素 (eCCE) 编号。
其中, 《ee = 0,l,...X-l, 其可以为 E-PDCCH对应的最低 eCCE编号, 也可以为 E-PDCCH对应的与解调参考符号端口 (DM-RS port) 相关联的 eCCE编号。
在另外一个实施例中, 当 UE的 E-PDCCH的映射方式为分布式映射时, 所述确 定单元 161根据基站为所述 UE配置的以下公式确定所述 UE的 PUCCH资源:
= N v l) 7 x NimkX丁 ,
其中, Λ^∞Η为高层半静态配置的专用参数; 为所述 E-PDCCH占用的 PRB 序号; Z为分布式映射时每个 PRB内承载的最大 DCI数; 为每个 PRB内的资源 粒子组 (eREG) 或 eCCE或 DCI编号。
其中, 《ee = 0,l,...Z-l, 其可以为 E-PDCCH对应的最低 eCCE编号, 也可以为
E-PDCCH对应的与 DM-RS port相关联的 eCCE编号。
通过本实施例的 UE,基站为不同的 E-PDCCH的映射方式配置了不同的 PUCCH 计算公式, 不同的 E-PDCCH的映射方式下的 UE根据该不同的 PUCCH计算公式计 算得到的 PUCCH资源不同, 由此避免了 PUCCH的资源碰撞问题。
本发明实施例还提供了一种基站, 如下面的实施例 12所述, 由于该基站解决问 题的原理与实施例 4的方法类似, 因此其具体的实施请参照实施例 4的方法的实施, 重复之处不再赘述。
实施例 12
本发明实施例还提供了一种基站, 图 17是该基站的组成示意图, 请参照图 17, 该基站包括:
配置单元 171,其为 UE不同的 E-PDCCH映射方式配置不同的 PUCCH计算公式, 以便 UE根据基站配置的专用参数和对应其 E-PDCCH的映射方式的 PUCCH计算公 式确定其 PUCCH资源。
通过本实施例的基站, 为不同的 E-PDCCH的映射方式配置了不同的 PUCCH计 算公式, 不同的 E-PDCCH的映射方式下的 UE根据该不同的 PUCCH计算公式计算 得到的 PUCCH资源不同, 由此避免了 PUCCH的资源碰撞问题。
本发明实施例还提供了一种用户设备, 如下面的实施例 13所述, 由于该用户设 备解决问题的原理与实施例 5的方法类似,因此其具体的实施请参照实施例 5的方法 的实施, 重复之处不再赘述。
实施例 13
本发明实施例还提供了一种用户设备 (UE)。 图 18是该 UE的组成示意图, 请 参照图 18, 该 UE包括:
第一确定单元 181, 其根据 E-PDCCH的负载和所述 UE的 E-PDCCH的映射方 式确定所述 UE的 PUCCH资源的起点;
第二确定单元 182, 其根据所述 UE的 PUCCH资源的起点以及 PUCCH计算公 式确定所述 UE的 PUCCH资源。
其中, 所述 E-PDCCH的负载通过物理控制格式指示符信道(EPCFICH)指示的 eCCE数或者 PRB数确定。
其中, 一种 E-PDCCH的映射方式下的 PUCCH的起点紧邻另一种 E-PDCCH映 射方式下的 PUCCH的可能的最大资源序号。
通过本实施例的 UE,基站为不同的 E-PDCCH的映射方式配置了不同的 PUCCH 资源的起点, 不同的 E-PDCCH的映射方式下的 UE根据该不同的 PUCCH资源的起 点计算得到的 PUCCH资源不同, 由此避免了 PUCCH的资源碰撞问题。
本发明实施例还提供了一种用户设备, 如下面的实施例 14所述, 由于该用户设 备解决问题的原理与实施例 6的方法类似,因此其具体的实施请参照实施例 6的方法 的实施, 重复之处不再赘述。
实施例 14
本发明实施例还提供了一种用户设备 (UE)。 图 19是该 UE的组成示意图, 请 参照图 19, 该 UE包括:
第一确定单元 191, 其动态的根据 E-PDCCH的负载或者动态的根据高层预先配 置的最大值确定 PUCCH的最大资源序号;
第二确定单元 192, 其根据 PUCCH的计算公式和所述 PUCCH的最大资源序号 确定所述 UE的 PUCCH的资源。
其中, 所述第一确定单元 191在动态的根据 E-PDCCH的负载确定 PUCCH的最 大资源序号时, 通过 EPCFICH 直接或间接获得所述 E-PDCCH 的负载, 或者通过 EPCFICH和高层信令计算获得所述 E-PDCCH的负载,然后根据所述 E-PDCCH的负 载确定 PUCCH的最大资源序号。
其中, 所述第一确定单元 191在动态的根据高层预先配置的最大值确定 PUCCH 的最大资源序号时, 首先接收基站发送的其预先配置的多种 E-PDCCH负载, 然后根 据基站发送的负载指示信息确定其 E-PDCCH负载, 然后根据所述 E-PDCCH的负载 确定 PUCCH的最大资源序号。
其中,所述第二确定单元 192通过将根据 PUCCH的计算公式计算获得的值对所 述 PUCCH的最大资源序号进行取模运算, 确定所述 UE的 PUCCH的资源。
通过本实施例的 UE,基站预定设定 PUCCH的最大资源序号, UE在通过 PUCCH 计算公式计算 PUCCH资源后,通过将计算出来的资源的资源序号限制在预先设定的 PUCCH的最大资源序号内, 提高了 PUCCH的频谱效率, 在通过实施例 9、 11、 或 13的方式计算 PUCCH资源时, 还避免了 PUCCH的资源碰撞。
本发明实施例还提供了一种基站, 如下面的实施例 15所述, 由于该基站解决问 题的原理与实施例 7的方法类似, 因此其具体的实施请参照实施例 7的方法的实施, 重复之处不再赘述。
实施例 15
本发明实施例还提供了一种基站, 图 20是该基站的组成示意图, 请参照图 20, 该基站包括:
配置单元 2001, 其配置负载倍数;
发送单元 2002, 其将所述负载倍数发送给 UE, 以便 UE根据所述负载倍数和接 收到的 EPCFICH指示的分布式映射的 E-PDCCH的负载, 确定 E-PDCCH的负载, 并根据该 E-PDCCH的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公 式和所述 PUCCH的最大资源序号确定其 PUCCH的资源。
通过本实施例的基站配置相应的参数, UE可以确定 E-PDCCH的负载, 据此可 以确定其 PUCCH资源, 由此提高了 PUCCH资源的频谱效率。
本发明实施例还提供了一种基站, 如下面的实施例 16所述, 由于该基站解决问 题的原理与实施例 8的方法类似, 因此其具体的实施请参照实施例 8的方法的实施, 重复之处不再赘述。
实施例 16
本发明实施例还提供了一种基站, 图 21是该基站的组成示意图, 请参照图 21, 该基站包括:
配置单元 2101, 其配置多种 E-PDCCH的负载;
发送单元 2102, 其将所述多种 E-PDCCH的负载和负载指示信息发送给 UE, 以 便 UE根据所述负载指示信息确定其 E-PDCCH的负载, 并根据该 E-PDCCH的负载 确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和所述 PUCCH的最大资 源序号确定其 PUCCH的资源。
通过本实施例的基站配置相应的参数, UE可以确定 E-PDCCH的负载, 据此可 以确定其 PUCCH资源, 由此提高了 PUCCH资源的频谱效率。
本发明实施例还提供了一种计算机可读程序,其中, 当在用户设备中执行该程序 时,该程序使得计算机在所述用户设备中执行实施例 1或实施例 3或实施例 5或实施 例 6所述的上行控制信道资源的确定方法。
本发明实施例提供了一种存储有计算机可读程序的存储介质,其中, 该计算机可 读程序使得计算机在用户设备中执行实施例 1或实施例 3或实施例 5或实施例 6所述 的上行控制信道资源的确定方法。
本发明实施例还提供了一种计算机可读程序, 其中, 当在基站中执行该程序时, 该程序使得计算机在所述基站中执行实施例 2、 4、 7或 8所述的上行控制信道资源的 确定方法。
本发明实施例还提供了一种存储有计算机可读程序的存储介质,其中, 该计算机 可读程序使得计算机在基站中执行权利要求 2、 4、 7或 8所述的上行控制信道资源的 确定方法。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。本发明 涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实现 上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。逻辑 部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本发明还涉及 用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash存储器等。
以上结合具体的实施方式对本发明进行了描述,但本领域技术人员应该清楚,这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。

Claims

权 利 要 求 书
1、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
用户设备 (UE) 接收基站为其增强型下行物理控制信道 (E-PDCCH) 的映射方 式配置的专用参数;
UE根据对应其 E-PDCCH的映射方式的专用参数以及 PUCCH计算公式,确定其 上行控制信道 (PUCCH) 资源。
2、 根据权利要求 1所述的方法, 其中, UE接收基站为其 E-PDCCH的映射方式 配置的专用参数, 包括:
UE接收基站发送的对应其 E-PDCCH的映射方式的专用参数; 或者
UE 接收基站发送的为 E-PDCCH 的不同映射方式配置的专用参数, 根据其 E-PDCCH的映射方式确定其专用参数。
3、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
基站为 UE不同的 E-PDCCH的映射方式配置不同的专用参数;
基站将所述不同的专用参数发送给 UE,或者将对应 UE的 E-PDCCH的映射方式 的专用参数发送给 UE, 以便所述 UE根据对应其 E-PDCCH的映射方式的专用参数 以及 PUCCH计算公式, 确定其上行控制信道 (PUCCH) 资源。
4、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
UE根据基站配置的专用参数和对应其 E-PDCCH的映射方式的 PUCCH计算公式 确定其 PUCCH资源。
5、 根据权利要求 4所述的方法, 其中, 当 UE的 E-PDCCH的映射方式为集中式 映射时, 所述 UE根据基站为其配置的以下公式确定其 PUCCH资源:
,
其中, Λ¾∞Η为高层半静态配置的专用参数; 为所述 E-PDCCH占用的物理 资源块(PRB)序号; Z为分布式映射时每个 PRB内承载的最大下行控制信息(DCI) 数; ; Γ为分布式映射时每个 PRB内承载的最大 DCI数与集中式映射时每个 PRB内承 载的最大 DCI数的比值; 为每个 PRB内的控制信道元素 (eCCE) 编号。
6、根据权利要求 5所述的方法, 其中, "ee = 0,l,...X -l, "^为 E-PDCCH对应 的最低 eCCE编号, 或者为 E-PDCCH对应的与解调参考符号端口 (DM-RS port)相 关联的 eCCE编号。
7、 根据权利要求 4所述的方法, 其中, 当 UE的 E-PDCCH的映射方式为分布式 映射时, 所述 UE根据基站为其配置的以下公式确定其 PUCCH资源:
_ 7 x Nindex丁 "CCE ,
其中, N^CCH为高层半静态配置的专用参数; 为所述 E-PDCCH占用的 PRB 序号; Z为分布式映射时每个 PRB内承载的最大 DCI数; 为每个 PRB内的资源 粒子组 (eREG) 或 eCCE或 DCI编号。
8、 根据权利要求 Ί所述的方法, 其中, nCCE = 0,1,...Z-1, nCCE为 E-PDCCH对应 的最低 eCCE编号, 或者为 E-PDCCH对应的与 DM-RS port相关联的 eCCE编号。
9、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
基站为 UE不同的 E-PDCCH映射方式配置不同的 PUCCH计算公式,以便 UE根 据基站配置的专用参数和对应其 E-PDCCH 的映射方式的 PUCCH计算公式确定其 PUCCH资源。
10、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
UE根据 E-PDCCH的负载和其 E-PDCCH的映射方式确定其 PUCCH资源的起点;
UE根据其 PUCCH资源的起点以及 PUCCH计算公式确定其 PUCCH资源。
11、根据权利要求 10所述的方法, 其中, 所述 E-PDCCH的负载通过物理控制格 式指示符信道 (EPCFICH) 指示的 eCCE数或者 PRB数来确定。
12、根据权利要求 10所述的方法,其中,一种 E-PDCCH的映射方式下的 PUCCH 的起点紧邻另一种 E-PDCCH映射方式下的 PUCCH的可能的最大资源序号。
13、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
UE 动态的根据 E-PDCCH 的负载或者动态的根据高层预先配置的最大值确定 PUCCH的最大资源序号;
UE根据 PUCCH的计算公式和所述 PUCCH的最大资源序号确定其 PUCCH的资 源。
14、 根据权利要求 13所述的方法, 其中, UE动态的根据 E-PDCCH的负载确定 PUCCH的最大资源序号包括:
UE根据接收到的 EPCFICH直接或间接确定上述 E-PDCCH的负载, 或者 UE根 据接收到的 EPCFICH和高层信令确定上述 E-PDCCH的负载; UE根据所述 E-PDCCH的负载确定 PUCCH的最大资源序号。
15、 根据权利要求 13所述的方法, 其中, UE动态的根据高层预先配置的最大值 确定 PUCCH的最大资源序号包括:
UE接收基站发送的其预先配置的多种 E-PDCCH负载;
UE根据基站发送的负载指示信息确定其 E-PDCCH负载;
UE根据选择的 E-PDCCH的负载确定 PUCCH的最大资源序号。
16、 根据权利要求 13所述的方法, 其中, UE根据 PUCCH 的计算公式和所述 PUCCH的最大资源序号确定其 PUCCH的资源, 包括:
UE通过将根据 PUCCH的计算公式计算获得的值对所述 PUCCH的最大资源序号 进行取模运算, 确定其 PUCCH的资源。
17、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
基站配置负载倍数;
基站将所述负载倍数发送给 UE,以便 UE根据所述负载倍数和接收到的 EPCFICH 指示的分布式映射的 E-PDCCH的负载,确定 E-PDCCH的负载,并根据该 E-PDCCH 的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和所述 PUCCH的 最大资源序号确定其 PUCCH的资源。
18、 一种上行控制信道资源的确定方法, 其中, 所述方法包括:
基站配置多种 E-PDCCH的负载;
基站将所述多种 E-PDCCH的负载和负载指示信息发送给 UE,以便 UE根据所述 负载指示信息确定其 E-PDCCH的负载, 并根据该 E-PDCCH的负载确定其 PUCCH 的最大资源序号, 根据 PUCCH 的计算公式和所述 PUCCH 的最大资源序号确定其 PUCCH的资源。
19、 一种用户设备 (UE), 其中, 所述 UE包括:
接收单元, 其接收基站为所述 UE的增强型下行物理控制信道(E-PDCCH) 的映 射方式配置的专用参数;
确定单元,其根据对应所述 UE的 E-PDCCH的映射方式的专用参数以及 PUCCH 计算公式, 确定所述 UE的上行控制信道 (PUCCH) 资源。
20、 根据权利要求 19所述的 UE, 其中, 所述接收单元用于:
接收基站发送的对应其 E-PDCCH的映射方式的专用参数; 或者 接收基站发送的为 E-PDCCH的不同映射方式配置的专用参数,根据其 E-PDCCH 的映射方式确定其专用参数。
21、 一种基站, 其中, 所述基站包括:
配置单元, 其为 UE不同的 E-PDCCH的映射方式配置不同的专用参数;
5 发送单元, 其将所述不同的专用参数发送给 UE, 或者将对应 UE的 E-PDCCH的 映射方式的专用参数发送给 UE, 以便所述 UE根据对应其 E-PDCCH的映射方式的 专用参数以及 PUCCH计算公式, 确定其上行控制信道 (PUCCH) 资源。
22、 一种用户设备 (UE), 其中, 所述 UE包括:
确定单元, 其根据基站配置的专用参数和对应所述 UE的 E-PDCCH的映射方式 10 的 PUCCH计算公式确定所述 UE的 PUCCH资源。
23、 根据权利要求 22所述的 UE, 其中, 当 UE的 E-PDCCH的映射方式为集中 式映射时,所述确定单元根据基站为所述 UE配置的以下公式确定所述 UE的 PUCCH 资源:
15 其中, Λ¾∞Η为高层半静态配置的专用参数; 为所述 E-PDCCH占用的物理 资源块(PRB )序号; Z为分布式映射时每个 PRB内承载的最大下行控制信息(DCI ) 数; ; Γ为分布式映射时每个 PRB内承载的最大 DCI数与集中式映射时每个 PRB内承 载的最大 DCI数的比值; 为每个 PRB内的控制信道元素 (eCCE ) 编号。
24、 根据权利要求 23所述的 UE, 其中, nCCE = 0, \, ..X - \ , "CC 为 E-PDCCH对 20 应的最低 eCCE编号, 或者为 E-PDCCH对应的与解调参考符号端口 (DM-RS port) 相关联的 eCCE编号。
25、 根据权利要求 22所述的 UE, 其中, 当 UE的 E-PDCCH的映射方式为分布 式映射时,所述确定单元根据基站为所述 UE配置的以下公式确定所述 UE的 PUCCH 资源:
- Ν 1) -μ 7 X NindeX
其中, A^eeH为高层半静态配置的专用参数; 为所述 E-PDCCH占用的 PRB 序号; Z为分布式映射时每个 PRB内承载的最大 DCI数; 为每个 PRB内的资源 粒子组 (eREG) 或 eCCE或 DCI编号。
26、 根据权利要求 25所述的 UE, 其中, "ee£ = 0,l, ...Z-l, 为 E-PDCCH对 应的最低 eCCE编号, 或者为 E-PDCCH对应的与 DM-RS port相关联的 eCCE编号。
27、 一种基站, 其中, 所述基站包括:
配置单元, 其为 UE不同的 E-PDCCH映射方式配置不同的 PUCCH计算公式, 以便 UE根据基站配置的专用参数和对应其 E-PDCCH的映射方式的 PUCCH计算公 式确定其 PUCCH资源。
28、 一种用户设备 (UE), 其中, 所述 UE包括:
第一确定单元, 其根据 E-PDCCH的负载和所述 UE的 E-PDCCH的映射方式确 定所述 UE的 PUCCH资源的起点;
第二确定单元, 其根据所述 UE的 PUCCH资源的起点以及 PUCCH计算公式确 定所述 UE的 PUCCH资源。
29、 根据权利要求 28所述的 UE, 其中, 所述 E-PDCCH的负载通过物理控制格 式指示符信道 (EPCFICH) 指示的 eCCE数或者 PRB数来确定。
30、根据权利要求 28所述的 UE,其中, 一种 E-PDCCH的映射方式下的 PUCCH 的起点紧邻另一种 E-PDCCH映射方式下的 PUCCH的可能的最大资源序号。
31、 一种用户设备 (UE), 其中, 所述 UE包括:
第一确定单元, 其动态的根据 E-PDCCH的负载或者动态的根据高层预先配置的 最大值确定 PUCCH的最大资源序号;
第二确定单元, 其根据 PUCCH的计算公式和所述 PUCCH的最大资源序号确定 所述 UE的 PUCCH的资源。
32、根据权利要求 31所述的 UE,其中,所述第一确定单元在动态的根据 E-PDCCH 的负载确定 PUCCH的最大资源序号时, 首先根据接收到的 EPCFICH直接或间接确 定上述 E-PDCCH 的负载, 或者 UE根据接收到的 EPCFICH和高层信令确定上述 E-PDCCH的负载, 然后根据所述 E-PDCCH的负载确定 PUCCH的最大资源序号。
33、 根据权利要求 31所述的 UE, 其中, 所述第一确定单元在动态的根据高层预 先配置的最大值确定 PUCCH的最大资源序号时,首先接收基站发送的其预先配置的 多种 E-PDCCH负载, 然后根据基站发送的负载指示信息确定其 E-PDCCH负载, 然 后根据所述 E-PDCCH的负载确定 PUCCH的最大资源序号。
34、 根据权利要求 31所述的 UE, 其中, 所述第二确定单元通过将根据 PUCCH 的计算公式计算获得的值对所述 PUCCH 的最大资源序号进行取模运算, 确定所述 UE的 PUCCH的资源。
35、 一种基站, 其中, 所述基站包括:
配置单元, 其配置负载倍数;
发送单元, 其将所述负载倍数发送给 UE, 以便 UE根据所述负载倍数和接收到 的 EPCFICH指示的分布式映射的 E-PDCCH的负载, 确定 E-PDCCH的负载, 并根 据该 E-PDCCH的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和 所述 PUCCH的最大资源序号确定其 PUCCH的资源。
36、 一种基站, 其中, 所述基站包括:
配置单元, 其配置多种 E-PDCCH的负载;
发送单元, 其将所述多种 E-PDCCH的负载和负载指示信息发送给 UE, 以便 UE 根据所述负载指示信息确定其 E-PDCCH的负载, 并根据该 E-PDCCH的负载确定其 PUCCH的最大资源序号, 根据 PUCCH的计算公式和所述 PUCCH的最大资源序号 确定其 PUCCH的资源。
37、 一种计算机可读程序, 其中, 当在用户设备中执行该程序时, 该程序使得计 算机在所述用户设备中执行权利要求 1-2、 4-8、 10-12、 13-16任一项所述的上行控制 信道资源的确定方法。
38、 一种存储有计算机可读程序的存储介质, 其中, 该计算机可读程序使得计算 机在用户设备中执行权利要求 1-2、 4-8、 10-12、 13-16任一项所述的上行控制信道资 源的确定方法。
39、 一种计算机可读程序, 其中, 当在基站中执行该程序时, 该程序使得计算机 在所述基站中执行权利要求 3、 9、 17、 18任一项所述的上行控制信道资源的确定方 法。
40、 一种存储有计算机可读程序的存储介质, 其中, 该计算机可读程序使得计算 机在基站中执行权利要求 3、 9、 17、 18任一项所述的上行控制信道资源的确定方法。
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MX2014015301A (es) 2015-03-05
US20160105885A1 (en) 2016-04-14
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RU2593385C1 (ru) 2016-08-10
BR112014031243A2 (pt) 2017-06-27
CA2877737A1 (en) 2013-12-19
KR101746367B1 (ko) 2017-06-12
US20150092728A1 (en) 2015-04-02
KR20150023673A (ko) 2015-03-05
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JP6293129B2 (ja) 2018-03-14
CN104365163A (zh) 2015-02-18
EP2863693A1 (en) 2015-04-22
EP2863693A4 (en) 2016-06-01
US9907057B2 (en) 2018-02-27
US9560642B2 (en) 2017-01-31
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EP2863693B1 (en) 2020-12-02

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