WO2017133440A1 - 信道的选择方法及装置 - Google Patents

信道的选择方法及装置 Download PDF

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Publication number
WO2017133440A1
WO2017133440A1 PCT/CN2017/071373 CN2017071373W WO2017133440A1 WO 2017133440 A1 WO2017133440 A1 WO 2017133440A1 CN 2017071373 W CN2017071373 W CN 2017071373W WO 2017133440 A1 WO2017133440 A1 WO 2017133440A1
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Prior art keywords
control channel
physical uplink
uplink control
enhanced physical
downlink control
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PCT/CN2017/071373
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English (en)
French (fr)
Inventor
周明宇
Original Assignee
北京佰才邦技术有限公司
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Application filed by 北京佰才邦技术有限公司 filed Critical 北京佰才邦技术有限公司
Priority to KR1020187018953A priority Critical patent/KR102078338B1/ko
Priority to EP17746760.2A priority patent/EP3413651B1/en
Priority to JP2018522659A priority patent/JP6552732B2/ja
Publication of WO2017133440A1 publication Critical patent/WO2017133440A1/zh
Priority to US16/054,765 priority patent/US10764873B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, 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
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the present application relates to the field of communications, and in particular to a method and apparatus for selecting a channel.
  • the existing mobile communication system refers to an operator providing communication for a user terminal (such as a mobile phone) by deploying a wireless access network device (such as a base station) and a core network device (such as a Home Location Register, HLR for short). Service system.
  • a wireless access network device such as a base station
  • a core network device such as a Home Location Register, HLR for short.
  • HLR Home Location Register
  • the first generation of mobile communication refers to the original analog, voice-only cellular phone standard, which mainly uses analog Technology and Frequency Division Multiple Access (FDMA) access method; second generation mobile communication introduces digital technology, which improves network capacity, improves voice quality and confidentiality, and second generation mobile communication It is represented by "Global System for Mobile Communication” (GSM) and "Code Division Multiple Access” (CDMA IS-95); the third generation of mobile communication mainly refers to CDMA2000, WCDMA, TD-SCDMA three technologies, and all three technologies are based on code division multiple access; the standards of the fourth generation mobile communication system are relatively unified internationally, and the long-term evolution (Long) developed by the International Organization for Standardization (3GPP) Term Evolution/Long Term Evolution-Advanced (LTE/LTE-A), whose downlink is based on orthogonal frequency division multiple direct input (Orthogonal Frequency Division) Multiple Access, referred to as the OFDMA), the uplink based on single carrier frequency division multiple direct entry (Single Carrier
  • FIG. 1 The basic architecture of a mobile communication network is schematically illustrated in FIG. 1.
  • a user terminal when a user terminal is connected to an access network (eg, a base station), the access network passes through a network with a core network (eg, an HLR).
  • the backhaul link transmits data to the core network, or the core network transmits data to the user terminal (eg, a mobile phone) through the backhaul link.
  • MuLTEfire is a newly defined uplink transmission method based on the LTE R13LAA downlink transmission method.
  • the method is an LTE technology that can work independently in an unlicensed frequency band, that is, stand-alone LTE-U.
  • the M-LTE method adopts the B-IFDMA mode different from the traditional LTE uplink SC-FDMA to meet the regional specifications of the bandwidth occupation of the unlicensed band, and introduces enhanced physical uplink control in the uplink physical channel PUCCH.
  • the channel ePUCCH transmits the uplink control information UCI (including ACK/NACK, CSI, SR, etc.) transmitted through the PUCCH in the legacy LTE.
  • UCI including ACK/NACK, CSI, SR, etc.
  • the minimum resource allocation granularity is large. For example, as shown in FIG. 2, there are 10 interleaving units interlace in the 20 MHz bandwidth in FIG. 2, and each interlace has a size of 10 frequency domains. Equally spaced PRB, number 0 is black 10 PRBs. Therefore, in the conventional LTE, the uplink control channel region PUCCH region is allocated in each uplink subframe. For the uplink multiplexing mode using B-IFDMA in the MuLTEfire, the enhanced physical uplink control channel region ePUCCH region occupies the bandwidth of the system. The ratio is at least as high as 10%, but at the same time the user terminal UE does not have such a large amount of UCI to transmit.
  • the existing triggering method includes separately indicating the ePUCCH location of each UE by using a DL/UL grant, similar to the resource indication of the PUSCH, and the advantage is that the indication mode is flexible, and the problem is mainly that when a large number of users need to transmit in the ePUCCH, the UL grant band The downlink signaling overhead is too large.
  • the embodiment of the present application provides a method and a device for selecting a channel, so as to at least solve the problem that the downlink signaling overhead caused by the uplink scheduling authorization is excessive when a large number of users transmit data in the enhanced physical uplink control channel in the prior art. problem.
  • a method for selecting a channel comprising: indicating a time domain resource location and a frequency domain resource location of a physical uplink control channel region based on a common physical downlink control channel indication; indicating a group of users
  • the terminal transmits the enhanced physical uplink control channel in the indicated enhanced physical uplink control channel region, where different user terminals transmit the enhanced physical uplink control channel in the different enhanced physical uplink control channel regions that are indicated.
  • the indicating the time domain resource location of the enhanced physical uplink control channel region based on the common physical downlink control channel includes: using the Nth subframe after the subframe in which the common physical downlink control channel is sent as the enhanced physical uplink control channel region a sub-frame, where the subframe in which the common physical downlink control channel region is located is the time domain resource location; or the Nth uplink subframe after the subframe that is carried in the common physical downlink control channel is sent And a subframe in which the physical uplink control channel region is located, wherein the subframe in which the common physical downlink control channel region is located is the time domain resource location; or the downlink control information DCI carried in the common physical downlink control channel is obtained. And instructing, according to the DCI, the time domain resource location of the enhanced physical uplink control channel region.
  • the N is configured by any one of the following methods: controlling RRC configuration by radio resources, configuring by downlink control information DCI, and presetting in a standard.
  • indicating, according to the DCI, the time domain resource location of the enhanced physical uplink control channel includes: when the user terminal detects the public physical medium for indicating the enhanced physical uplink control channel, on the downlink subframe N When the downlink control channel is used, the N subframes after the current subframe in which the common physical downlink control channel indicated in the DCI is located are used as the subframe in which the enhanced physical uplink control channel region is located.
  • the domain resource location includes: the downlink subframe N ranging from 1 to 8 by 3 bits.
  • indicating the frequency domain resource location of the enhanced physical uplink control channel region based on the common physical downlink control channel includes: configuring the frequency domain resource location for the enhanced physical uplink control channel according to the radio resource control RRC signaling; or according to public physics
  • the downlink control information DCI carried on the downlink control channel indicates the frequency domain resource location of the enhanced physical uplink control channel region; or the enhanced physical uplink control channel region is determined according to the control channel element CCE location occupied by the common physical downlink control channel. The location of the frequency domain resource.
  • configuring the frequency domain resource location for the enhanced physical uplink control channel according to the radio resource control RRC signaling includes: indicating, by using a 10-bit bitmap bitmap, an interlace corresponding to the enhanced physical uplink control channel, or by using 4 The bit indicates that the enhanced physical uplink control channel occupies any one of the ten interleaving units interlace interlace.
  • indicating, according to the downlink control information DCI carried on the common physical downlink control channel, the frequency domain resource location of the enhanced physical uplink control channel includes: indicating, by using a 10-bit bitmap bitmap, an interlace corresponding to the enhanced physical uplink control channel The unit interlace, or, by 4 bits, indicates that the enhanced physical uplink control channel occupies any interlace interlace of 10 interlaces.
  • determining the frequency domain resource location of the enhanced physical uplink control channel according to the CCE location of the control channel element sent by the common physical downlink control channel includes: indicating, by using a specified mapping table, that the common physical downlink control channel is used for sending A mapping relationship between the first control channel element CCE location number J and the interleaving unit interlace number K corresponding to the enhanced physical uplink control channel.
  • mapping relationship between the first control channel element CCE location number J of the common physical downlink control channel and the interleaving unit interlace number K corresponding to the enhanced physical uplink control channel is represented by a specified mapping table:
  • the radio resource control RRC configures the first control channel element CCE location number J to correspond to the interleave unit interlace number K based on the first CCE location number occupied by the common physical downlink control channel.
  • indicating that the group of user terminals transmit the enhanced physical uplink control channel in the indicated enhanced physical uplink control channel region comprises: determining the enhanced physical uplink that is indicated according to the control channel element CCE position occupied by the downlink control information DCI Corresponding enhanced physical uplink control channel number in the control channel region; or configuring a plurality of user terminals as a group of user terminals according to the radio resource control RRC, scrambling the common physical downlink control channel by the group RNTI, and indicating the group of users And an enhanced physical uplink control channel number corresponding to the enhanced physical uplink control channel region that is indicated by the user terminal in the terminal; or indicating a plurality of downlink subframes, and scheduled downlink transmission in the multiple downlink subframes The user terminal selects the corresponding enhanced physical uplink control channel number in the enhanced physical uplink control channel that is indicated according to the control channel element CCE position occupied by the downlink control information DCI.
  • determining, according to the control channel element CCE position occupied by the downlink control information DCI, the corresponding enhanced physical uplink control channel number in the enhanced physical uplink control channel region includes: when the user terminal is in the enhanced When the uplink control information UCI corresponding to the multiple subframes is fed back in the physical uplink control channel, the equivalent CCE position is calculated according to the CCE position of the control channel element occupied by the transmission downlink scheduling grant DL grant corresponding to the multiple subframes, and according to the equivalent The CCE location indicates the enhanced physical uplink control channel number.
  • the equivalent CCE position is a control channel element CCE position corresponding to a last subframe of the plurality of subframes.
  • the plurality of user terminals are configured as a group of user terminals according to the RRC, the common physical downlink control channel is scrambled by the group RNTI, and each user terminal of the group of user terminals is instructed to indicate
  • the enhanced physical uplink control channel number in the enhanced physical uplink control channel region includes: downlink control information DCI explicitly indicating that each user terminal in the group of user terminals corresponds to the indicated enhanced physical uplink control channel region Or enhancing the physical uplink control channel number; or indicating the corresponding to the user terminal in the indicated enhanced physical uplink control channel region according to the intra-group unique number assigned to each user terminal in the group of user terminals Enhanced physical uplink control channel number.
  • the downlink control information DCI explicitly indicates that the enhanced physical uplink control channel number corresponding to each of the user terminals in the enhanced physical uplink control channel region that is indicated in the group of user terminals includes: combining the enhanced physical uplink The starting number of the control channel indicates the enhanced physical uplink control channel number corresponding to one user terminal in the group of user terminals every X bits.
  • indicating the enhanced physical uplink control channel number corresponding to one user terminal in the group of user terminals every X bits includes: when the starting number of the enhanced physical uplink control channel is N, the public The downlink control information DCI in the physical downlink control channel indicates the enhanced physical uplink control channel number of the user terminal UE-2, the user terminal UE-5, and the user terminal UE-6, wherein the user terminal UE-2, the user The enhanced physical uplink control channel numbers of the terminal UE-5 and the user terminal UE-6 are N, N+1 and N+2, respectively.
  • the number includes: superimposing the starting number of the unique number in the group to the enhanced physical uplink control channel, and obtaining the enhanced physical uplink control channel number corresponding to the user terminal, where the starting number is the The number indicated in the downlink control information DCI of the common physical downlink control channel.
  • superimposing the starting number of the intra-group unique number to the enhanced physical uplink control channel, and obtaining the enhanced physical uplink control channel number corresponding to the user terminal includes: if the enhanced physical uplink control channel is The starting number is N, and the enhanced physical uplink control channel number corresponding to the user terminal UE-n in the group of user terminals is N+n.
  • the user terminal that indicates one or more downlink subframes, and the downlink transmissions scheduled in the one or more downlink subframes are selected according to the control channel element CCE location of the downlink scheduling grant DL grant.
  • the corresponding enhanced physical uplink control channel number in the enhanced physical uplink control channel includes: when the user terminal feeds back the multiple downlink subframes, according to the downlink authorization of the multiple downlink subframes
  • the control channel element CCE location of the scheduling DL grant determines an equivalent CCE location, and the enhanced physical uplink control channel number is determined according to the equivalent CCE location.
  • the method further includes: the downlink control information indicates, by using an N-bit, any one of the downlink subframes of the current subframe, and determines that the user terminal is Whether the one of the indicated downlink subframes is scheduled; the user terminal feeding back the multiple downlink subframes includes: if it is determined that the user terminal is scheduled in the indicated one of the downlink subframes The user terminal feeds back the multiple downlink subframes.
  • the equivalent CCE position is the first control channel element CCE position.
  • the method further includes: the common physical downlink control channel cross-carrier indicating the enhanced physical uplink control channel.
  • the indicating, by the common physical downlink control channel, the enhanced physical uplink control channel across the carrier comprises: implementing the common physical downlink control channel cross by adding a 3-bit or more than 3 bits carrier indication field CIF in the downlink control information DCI
  • the carrier indicates the enhanced physical uplink control channel.
  • the downlink control information DCI may be any one of the following: a downlink control information DCI for indicating the enhanced physical uplink control channel, and is used to indicate the enhanced physical uplink control channel and the enhanced physical uplink. Downlink control information DCI of the control channel.
  • the public physical downlink control channel indicates the type of the uplink control information UCI that is fed back in the enhanced physical uplink control channel by using any of the following modes: indicating the type of the uplink control information UCI by using different RNTIs,
  • the downlink control information DCI indicates the type of the uplink control information UCI.
  • the type of the uplink control information UCI includes any one of the following types: acknowledgement character ACK/negative acknowledgement NACK feedback, multi-subframe acknowledgement character ACK/negative acknowledgement NACK feedback, multi-carrier acknowledgement character ACK/negative acknowledgement NACK feedback, Multi-subframe and multi-carrier acknowledgment character ACK/negative acknowledgment NACK feedback, channel state information CSI feedback, multi-carrier channel state information CSI feedback, reference signal SRS feedback, and multi-carrier reference signal SRS feedback.
  • the type of the uplink control information UCI includes scrambling different RNTIs of different values allocated in the value range of the reserved RNTI to send the public of different types of the uplink control information UCI Physical downlink control channel.
  • indicating, by using the downlink control information DCI, the type of the uplink control information UCI includes: indicating, by using X bits in the downlink control information DCI, the downlink control information UCI type that is fed back.
  • determining, by using the X bits in the downlink control information DCI, the type of the downlink control information UCI to be fed back includes: indicating ACK/NACK feedback by 3 bits, indicating multi-subframe ACK/NACK feedback by 3 bits, and passing 3 bits Indicates multi-carrier ACK/NACK feedback, indicates multi-subframe and multi-carrier ACK/NACK feedback by 3 bits, CSI feedback by 3 bits, multi-carrier CSI feedback by 3 bits, SRS feedback by 3 bits, and 3-bit indication Multi-carrier SRS feedback.
  • a channel selection apparatus is further provided, where the apparatus includes: a first indication unit, configured to indicate a time domain resource location of an enhanced physical uplink control channel region based on a common physical downlink control channel indication a frequency domain resource location; a second indication unit, configured to instruct a group of user terminals to transmit an enhanced physical uplink control channel in the indicated enhanced physical uplink control channel region, where different user terminals are in different locations indicated The enhanced physical uplink control channel is transmitted in the enhanced physical uplink control channel region.
  • the first indication unit includes: a first determining module, configured to use, as the subframe in which the enhanced physical uplink control channel region is located, the Nth subframe after the subframe that sends the common physical downlink control channel, where The subframe in which the common physical downlink control channel region is located is the time domain resource location; or the second determining module is configured to send the Nth uplink subframe after the subframe carried in the common physical downlink control channel And a subframe in which the physical uplink control channel region is located, where the subframe in which the common physical downlink control channel region is located is the time domain resource location; or a third determining module, configured to acquire the public physical downlink Controlling downlink DCT information carried in the channel, and indicating the enhanced physical uplink control channel region according to the DCI Time domain resource location.
  • a first determining module configured to use, as the subframe in which the enhanced physical uplink control channel region is located, the Nth subframe after the subframe that sends the common physical downlink control channel, where The subframe in which the common physical
  • the first indication unit includes: a configuration module, configured to configure the frequency domain resource location for the enhanced physical uplink control channel according to radio resource control RRC signaling; or a first indication module, configured to use according to public physics
  • the downlink control information DCI carried on the downlink control channel indicates the frequency domain resource location of the enhanced physical uplink control channel region; or the fourth determining module is configured to determine, according to the CCE location of the control channel element occupied by the common physical downlink control channel.
  • the frequency domain resource location of the enhanced physical uplink control channel region is described.
  • the second indication unit includes: a fifth determining module, configured to determine, according to the control channel element CCE location occupied by the downlink control information DCI, the corresponding enhanced physical uplink control channel in the enhanced physical uplink control channel region that is indicated a second indicator module, configured to configure, according to the RRC, a plurality of user terminals as a group of user terminals, scramble the common physical downlink control channel by using the group RNTI, and indicate each of the group of user terminals The enhanced physical uplink control channel number corresponding to the enhanced physical uplink control channel region that is indicated by the user terminal; or the sixth determining module, configured to indicate multiple downlink subframes, and are used in the multiple downlink subframes The user terminal of the scheduled downlink transmission determines the corresponding enhanced physical uplink control channel number in the enhanced physical uplink control channel that is indicated according to the control channel element CCE location occupied by the downlink scheduling grant DL grant.
  • a fifth determining module configured to determine, according to the control channel element CCE location occupied by the downlink
  • the embodiment of the present application further provides a non-transitory computer readable storage medium storing computer instructions that cause the computer to perform the selection method of the above channel of the present application.
  • the embodiment of the present application further provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer At this time, the computer can perform the selection method of the above channel of the present application.
  • An embodiment of the present application further provides an electronic device, including: at least one processor; and a memory communicably coupled to the at least one processor; wherein the memory is stored for execution by the at least one processor An instruction, the instruction being set to perform the above application of the present application Channel selection method.
  • the time domain resource location and the frequency domain resource location of the physical uplink control channel region are enhanced according to the common physical downlink control channel indication; and a group of user terminals are indicated in the enhanced physical uplink control channel region that is indicated.
  • the enhanced physical uplink control channel is transmitted, wherein the different user terminals transmit the enhanced physical uplink control channel in the different enhanced physical uplink control channel regions that are indicated, and the enhanced physical uplink control channel is indicated by the common physical downlink control channel.
  • Time domain resource location and frequency domain resource location, and indicating that different user terminals transmit enhanced physical uplink control channels in different enhanced physical uplink control channel regions that are indicated, and different user terminals are in different enhanced physical uplink control channels.
  • the purpose of transmitting data in the network further solves the technical problem that the downlink signaling overhead caused by the uplink scheduling authorization is too large when a large number of users transmit data in the enhanced physical uplink control channel in the prior art, and achieves avoiding simultaneous indications.
  • User terminal Technical effects interfere.
  • FIG. 1 is a schematic diagram of a basic architecture of a mobile communication network according to the prior art
  • FIG. 3 is a flowchart of a channel selection method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a channel selection apparatus according to an embodiment of the present application.
  • FIG. 5 is a hardware structural diagram of an electronic device that performs selection of a channel according to an embodiment of the present application.
  • a channel selection method embodiment is provided, it being noted that the steps illustrated in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and The logical order is shown in the flowchart, but in some cases the steps shown or described may be performed in a different order than the ones described herein.
  • FIG. 3 is a flowchart of a channel selection method according to an embodiment of the present application. As shown in FIG. 3, the method includes the following steps:
  • Step S302 indicating, according to a common physical downlink control channel (Common PDCCH, C-PDCCH for short), a time domain resource location and a frequency domain resource location of the enhanced physical uplink control channel region;
  • Common physical downlink control channel Common PDCCH, C-PDCCH for short
  • Step S304 instructing a group of user terminals to transmit an enhanced physical uplink control channel in the indicated enhanced physical uplink control channel region, where different user terminals transmit enhanced physical uplink control in different enhanced physical uplink control channel regions indicated channel.
  • the number of the enhanced physical uplink control channel corresponding to the user terminal of the group of user terminals may be simultaneously indicated by the same control signaling.
  • each user terminal can follow the received instructions.
  • Corresponding enhanced physical uplink control channel transmission control signaling thereby avoiding collision between multiple user terminals UE.
  • the common physical downlink control channel indicates that the time domain resource location and the frequency domain resource location of the physical uplink control channel are enhanced, and the different user terminals are instructed to transmit in the different enhanced physical uplink control channel regions that are indicated.
  • the physical uplink control channel is enhanced to achieve the purpose of transmitting data in different enhanced physical uplink control channels by different user terminals, thereby solving the uplink scheduling in the prior art when a large number of users transmit data in the enhanced physical uplink control channel.
  • the technical problem that the downlink signaling overhead caused by the authorization is too large, and the technical effect of avoiding mutual interference when simultaneously indicating a plurality of user terminals is realized.
  • the specific technologies of the mobile communication described in the embodiments of the present application are not limited, and may be WCDMA, CDMA2000, TD-SCDMA, WiMAX, LTE/LTE-A, LAA, MuLTEfire, and the fifth generation that may occur later.
  • the sixth generation and the Nth generation mobile communication technologies are not limited, and may be WCDMA, CDMA2000, TD-SCDMA, WiMAX, LTE/LTE-A, LAA, MuLTEfire, and the fifth generation that may occur later.
  • the sixth generation and the Nth generation mobile communication technologies are not limited, and may be WCDMA, CDMA2000, TD-SCDMA, WiMAX, LTE/LTE-A, LAA, MuLTEfire, and the fifth generation that may occur later.
  • the sixth generation and the Nth generation mobile communication technologies are not limited, and may be WCDMA, CDMA2000, TD-SCDMA, WiMAX, LTE/LTE-A, LAA, MuLTEfire, and the fifth generation
  • the user terminal described in the present application is a terminal side product that can support a communication protocol of a land mobile communication system, for example, a modem module (Wireless Modem) of a special communication, and the modem module of the special communication can be used by a mobile phone, a tablet computer, a data card, or the like.
  • a modem module Wireless Modem
  • Various types of terminal forms are integrated to complete the communication function.
  • the fourth generation mobile communication system LTE/LTE-A and its derived MuLTEfire are used as an example, wherein the user terminal is represented as a UE (User Equipment), and the access network device represents It is a base station eNB or an access point (AP).
  • UE User Equipment
  • AP access point
  • the method for indicating the time domain resource location of the physical uplink control channel region based on the common physical downlink control channel may be various.
  • the enhanced physical uplink control channel may be indicated by using any one of the following three manners.
  • the time domain resource location of the zone :
  • Manner 1 The Nth subframe after the subframe of the common physical downlink control channel is used as the subframe where the enhanced physical uplink control channel region is located, where the subframe where the common physical downlink control channel region is located is the time domain resource location, N
  • Configuration The RRC configuration is controlled by radio resources and preset in the standard.
  • the N subframes after the current downlink subframe M may be used as the ePUCCH Region.
  • the subframe in which it is located, and thus the ePUCCH can be transmitted on the subframe M+N.
  • Manner 2 The Nth uplink subframe after the subframe that is carried in the common physical downlink control channel is used as the subframe where the enhanced physical uplink control channel region is located, where the subframe of the common physical downlink control channel region is the time domain.
  • the N may be configured in any one of the following manners: the RRC configuration is controlled by the radio resource, configured by the downlink control information DCI, and preset in the standard.
  • the subframe in which the enhanced physical uplink control channel region ePUCCH region is located may be determined according to the Nth uplink subframe after the subframe that is sent on the common physical downlink control channel C-PDCCH, and the ePUCCH is indicated by the subframe. Time domain resource location.
  • Manner 3 Obtain downlink control information DCI carried in the common physical downlink control channel, and enhance the time domain resource location of the physical uplink control channel according to the DCI indication.
  • the downlink control information DCI includes information indicating a time domain resource location of the enhanced physical uplink control channel. Specifically, when the user terminal UE detects the public physical downlink control for indicating the enhanced physical uplink control channel ePUCCH on the downlink subframe N, When the channel C-PDCCH is used, the time domain resource location of the enhanced physical uplink control channel region ePUCCH Region may be determined according to the downlink control information DCI in the C-PDCCH transmission, for example, the common physical downlink control channel indicated by the downlink control information DCI
  • the Nth subframe after the current subframe is the subframe in which the enhanced physical uplink control channel region ePUCCH Region is located. Among them, the downlink subframe N in the range of 1 to 8 can be represented by 3 bits.
  • the method for indicating the frequency domain resource location of the physical uplink control channel region based on the common physical downlink control channel may be various.
  • the enhanced physical uplink control channel may be indicated by using any one of the following three manners. Frequency domain of the region Resource location:
  • Manner 1 The frequency domain resource location is configured according to the radio resource control RRC signaling to enhance the physical uplink control channel region.
  • the access network device (for example, the base station eNB) can control the RRC signaling to the radio resource delivered by the user terminal, and further notify the user terminal of the location of the ePUCCH corresponding to the ePUCCH in the frequency domain.
  • the frequency domain resource location of the ePUCCH region may be indicated by any of the following methods. For example, there are 10 interlaces in the 20 MHz bandwidth, so the interleaving unit corresponding to the enhanced physical uplink control channel ePUCCH may be indicated by a 10-bit bitmap bitmap.
  • the downlink control information DCI carried on the common physical downlink control channel indicates that the frequency domain resource location of the physical uplink control channel region is enhanced.
  • the frequency domain resource location of the ePUCCH region is indicated by the mode 2, and the frequency domain resource location of the ePUCCH region is indicated by the second mode.
  • the interleaving unit interlace corresponding to the enhanced physical uplink control channel ePUCCH may be indicated by a 10-bit bitmap bitmap; and the enhanced physical uplink control channel ePUCCH may be occupied by any one of the 10 interleaving units interlace interlace by 4 bits.
  • Manner 3 Determine a frequency domain resource location of the enhanced physical uplink control channel region according to a CCE location of the control channel element occupied by the common physical downlink control channel.
  • the frequency domain resource location of the ePUCCH region of the physical uplink control channel may be indicated and enhanced by the third mode.
  • mapping relationship between the first control channel element CCE location number J occupied by the common physical downlink control channel and the interleaving unit interlace number K corresponding to the enhanced physical uplink control channel may be indicated by a predetermined mapping table.
  • the mapping relationship can be configured through the radio resource control RRC, and the standard preset rule can also be adopted. Set to configure.
  • the radio resource control RRC configures the first control channel element CCE location number J to correspond to the interleaving unit interlace number K based on the first CCE location number occupied by the common physical downlink control channel. That is, according to the first CCE location number occupied by the C-PDCCH, the RRC directly directly maps the first CCE location number to the number of the interlace interlace, and assumes that the first CCE number of the C-PDCCH is 0, then the ePUCCH Transmitted on the 0th interleaving unit interlace.
  • any one of the following modes may be included:
  • Manner 1 Determine the corresponding enhanced physical uplink control channel number in the indicated enhanced physical uplink control channel region according to the control channel element CCE position occupied by the downlink control information DCI.
  • the base station may send the downlink control information DCI to the user terminal to trigger the user terminal UE to feed back the uplink control information UCI.
  • the base station may send an uplink grant scheduling DL grant to the user terminal UE by using the downlink data channel PDSCH to trigger the user terminal UE to feed back the ACK/NACK corresponding to the PDSCH.
  • the user terminal UE may determine the corresponding ePUCCH number in the indicated ePUCCH region according to the EEC position of the (E)PDCCH of the base station transmitting the downlink control information DCI, and implement scheduling by the base station to avoid collision between the user terminals.
  • the control channel element CCE of the downlink control information DCI corresponding to the multiple subframes of the UCI may be fed back according to the need.
  • the location calculates an equivalent CCE location and enhances the physical uplink control channel ePUCCH number according to the equivalent CCE location indication, where the equivalent CCE location may be a control channel element CCE location corresponding to the last subframe of the plurality of subframes.
  • Manner 2 Configuring a plurality of user terminals as a group of user terminals according to the RRC control, scrambling the common physical downlink control channel by the group RNTI, and indicating that each user terminal in the group of user terminals is in the indicated enhanced physical uplink control channel Corresponding in the area Enhance the physical uplink control channel number.
  • the base station may configure a plurality of user terminals UE as a group of user terminals by using RRC, each group is allocated a group RNTI (a special public RNTI is required for broadcasting), and each user terminal UE in the group is allocated one. A unique number within the group; then the common physical downlink control channel C-PDCCH is scrambled by the set of RNTIs.
  • group RNTI a special public RNTI is required for broadcasting
  • the enhanced physical uplink control channel ePUCCH number corresponding to the indicated enhanced physical uplink control channel region ePUCCH region of each user terminal in the group of user terminals may be displayed by using the downlink control information DCI;
  • the manner of displaying the indication may be combined with the starting number of the enhanced physical uplink control channel ePUCCH, and each X bit indicates an enhanced physical uplink control channel ePUCCH number corresponding to one user terminal in a group of user terminals.
  • the starting number of the enhanced physical uplink control channel is N
  • the downlink control information DCI in the common physical downlink control channel simultaneously indicates the enhanced physics of the user terminal UE-2, the user terminal UE-5, and the user terminal UE-6.
  • the uplink control channel number, wherein the enhanced physical uplink control channel numbers of the user terminal UE-2, the user terminal UE-5, and the user terminal UE-6 are N, N+1, and N+2, respectively.
  • the enhanced physical uplink control corresponding to the user terminal may be determined in the indicated enhanced physical uplink control channel region ePUCCH region according to the intra-group unique number assigned to each user terminal in the group of user terminals.
  • Channel ePUCCH number For the manner in which the ePUCCH number is selected by the intra-group unique number assigned by the RRC, the enhanced physical uplink control channel number corresponding to the user terminal may be obtained by superimposing the unique number in the group to the starting number of the enhanced physical uplink control channel, where The number is the number indicated in the downlink control information DCI of the common physical downlink control channel. For example, if the starting number of the enhanced physical uplink control channel is N, the enhanced physical uplink control channel number corresponding to any user terminal UE-n of a group of user terminals is N+n.
  • Manner 3 indicating a plurality of downlink subframes, and the user terminal of the downlink transmission scheduled in the multiple downlink subframes selects the corresponding one of the indicated enhanced physical uplink control channels according to the control channel element CCE position occupied by the downlink control information DCI Enhance the physical uplink control channel number.
  • the downlink control information DCI indicates, by using an N-bit, a certain downlink subframe before the current subframe, and determines whether the user terminal UE that occupies the C-PDCCH is scheduled in any of the indicated downlink subframes, if It is detected that the user terminal UE occupying the C-PDCCH is scheduled in the indicated downlink subframe, and then feedback is performed on the indicated ePUCCH.
  • the user terminal UE may first determine an equivalent CCE location according to the control channel element CCE position occupied by the DL grant of the downlink grant scheduling of the multiple downlink subframes, and determine according to the equivalent CCE location.
  • An Enhanced Physical Uplink Control Channel (ePUCCH) number wherein the equivalent CCE location may be the first control channel element CCE location.
  • the channel selection method provided by the present application further includes: the common physical downlink control channel C-PDCCH may indicate the type of the uplink control information UCI that needs to be fed back in the enhanced physical uplink control channel ePUCCH, where the ePUCCH may be indicated in any of the following manners.
  • Type of UCI to be fed back The type of the uplink control information UCI is indicated by a different RNTI, and the type of the uplink control information UCI may also be indicated by the downlink control information DCI.
  • the type of the uplink control information UCI that needs to be fed back includes any one of the following types: acknowledgement character ACK/negative acknowledgement NACK feedback, multi-subframe acknowledgement character ACK/negative acknowledgement NACK feedback, multi-carrier acknowledgement character ACK/negative acknowledgement NACK feedback Multi-subframe and multi-carrier acknowledgment character ACK/negative acknowledgment NACK feedback, channel state information CSI feedback, multi-carrier channel state information CSI feedback, reference signal SRS feedback, and multi-carrier reference signal SRS feedback.
  • the type of the uplink control information UCI includes: separately scrambling different RNTIs of different values allocated in the value range of the reserved RNTI, and transmitting the common physical downlinks of different uplink control information UCI types. Control channel.
  • the indicating the type of the uplink control information UCI by using the downlink control information DCI includes: indicating the downlink control information UCI type of the feedback by the X bit in the downlink control information DCI.
  • the downlink control information UCI type that is determined by the X bits in the downlink control information DCI includes: indicating ACK/NACK feedback by 3 bits, indicating multi-subframe ACK/NACK feedback by 3 bits, and indicating multi-carrier ACK by 3 bits.
  • NACK Feedback indicating multi-subframe and multi-carrier ACK/NACK feedback by 3 bits, CSI feedback by 3 bits, multi-carrier CSI feedback by 3 bits, SRS feedback by 3 bits, and multi-carrier SRS feedback by 3 bits.
  • the method for selecting a channel provided by the present application further includes: the common physical downlink control channel cross-carrier indication augmented physical uplink control channel.
  • the base station may transmit the C-PDCCH in the carrier N to indicate the ePUCCH information on the carrier M.
  • the common physical downlink control channel cross-carrier indication enhanced physical uplink control channel can implement the common physical downlink control channel cross-carrier indication enhanced physics by adding 3 bits or more than 3 bits of the carrier indication field CIF in the downlink control information DCI. Uplink control channel.
  • the DCI in the common physical downlink control channel C-PDCCH may be downlink control information dedicated to indicating an enhanced physical uplink control channel, and may be included to indicate enhanced physical uplink control. In addition to the downlink control information of the channel, other indications are also included.
  • the method for selecting a channel provided by the present application is a method for indicating an enhanced physical uplink control channel ePUCCH of a plurality of user terminals UE by using a common physical downlink control channel C-PDCCH, and the channel selection method provided by the present application can reduce control signaling overhead.
  • flexible support indicates that different user terminal UEs are transmitted on different ePUCCHs, and collision between user terminals UE is avoided.
  • the enhanced physical uplink control channel (ePUCCH) time domain resource location and the frequency domain resource location are indicated by a common physical downlink control channel (C-PDCCH), specifically:
  • Step S1 indicating a time domain location of the enhanced physical uplink control channel region.
  • the method includes: sending, by the subframe, the subframe that is the subframe of the common physical downlink control channel, the subframe in which the enhanced physical uplink control channel region is located, where N is configured or pre-defined by RRC; or is carried according to the common physical downlink control channel.
  • the Nth subframe after the current subframe indicated by the downlink control information DCI is a subframe in which the enhanced physical uplink control channel region is located.
  • Step S2 indicating a frequency domain position of the enhanced physical uplink control channel region.
  • the method includes: a resource location configured according to the radio resource control RRC signaling; a radio resource location indicated by the downlink control information DCI carried on the common physical downlink control channel; and an enhanced physical uplink according to the CCE location of the common physical downlink control channel.
  • the frequency domain location of the control channel region is configured according to the radio resource control RRC signaling; a radio resource location indicated by the downlink control information DCI carried on the common physical downlink control channel; and an enhanced physical uplink according to the CCE location of the common physical downlink control channel.
  • Step S3 instructing a group of terminals to transmit an enhanced physical uplink control channel in the indicated enhanced physical uplink control channel region.
  • the user terminal UE determines the corresponding ePUCCH number in the indicated ePUCCH region according to the control channel element CCE position occupied by the DL grant, avoids collision between the UEs by using the scheduling of the base station eNB, or configures multiple UEs through RRC.
  • the method further includes: the foregoing CPDCCH and the indicated ePUCCH may be on different carriers, that is, cross-carrier indication.
  • the time domain resource location of the ePUCCH region indicated by the C-PDCCH in the foregoing step S1 can be implemented by:
  • Nth subframe after the subframe of the common physical downlink control channel C-PDCCH is sent is a subframe in which the enhanced physical uplink control channel region is located, where N is pre-defined in the RRC configuration or standard.
  • the Nth subframe after the current subframe indicated by the downlink control information DCI carried on the common physical downlink control channel is a subframe in which the enhanced physical uplink control channel region is located.
  • the subframe number corresponding to the ePUCCH is determined according to the indication content in the DCI on the C-PDCCH, for example, the range is represented by 3-bit. N of 1-8.
  • N is a RRC configuration or a standard pre-defined or Indicated by DCI.
  • the C-PDCCH in the foregoing step S2 indicates that the frequency domain resource location of the ePUCCH region can be implemented by:
  • the eNB is configured to notify the UE of the resource location of the corresponding ePUCCH in the frequency domain by using the RRC signaling, for example, by using a 10-bit bitmap bitmap mode to indicate the interlace corresponding to the ePUCCH. Or by 4-bit indicating that the ePUCCH occupies one of the ten interlace interlaces.
  • the other mode is that the radio resource location indicated by the downlink control information DCI carried on the common physical downlink control channel, for example, indicates the interlace corresponding to the ePUCCH by using a 10-bit bitmap, or indicates that the ePUCCH occupies 10 interlaces by using the 4-bit Some of the interlace.
  • the frequency domain location of the enhanced physical uplink control channel region is determined according to the CCE location of the common physical downlink control channel, and a mapping may be specified to indicate that the first CCE location number J of the C-PDCCH is corresponding to the ePUCCH.
  • the mapping relationship may be configured by RRC or standard. For example, according to the first CCE location number of the C-PDCCH, the RRC configuration CCE number directly corresponds to the interlace number, and the first one of the C-PDCCH is assumed. When the CCE number is 0, the ePUCCH is sent on the 0th interlace.
  • the C-PDCCH indicates that the ePUCCH numbers of the multiple UEs include the following methods:
  • the time-frequency resource location of the ePUCCH region can be obtained, because multiple ePUCCHs on the same time-frequency resource (for example, 10 PRBs corresponding to one interlace at 20 MHz bandwidth) pass the code division.
  • multiple ePUCCHs on the same time-frequency resource for example, 10 PRBs corresponding to one interlace at 20 MHz bandwidth
  • the multiplexing mode of the ePUCCH in the time domain and the frequency domain in a PRB may adopt a PUCCH-like manner, and the real-time domain adopts a cyclic shift sequence by using an orthogonal code sum or a frequency domain.
  • an ePUCCH region can support orthogonal transmission of N ePUCCHs numbered 0 to N-1, the number corresponding to the orthogonal code index used by the ePUCCH in the time domain and the cyclic shift sequence used in the frequency domain. index.
  • the method for instructing a group of user terminals to transmit an enhanced physical uplink control channel in the indicated enhanced physical uplink control channel region includes the following:
  • An optional mode is that when the UCI fed back by the UE is triggered by the eNB by sending a DCI (for example, when the UE feeds back the ACK/NACK corresponding to the PDSCH, the UE receives the PDSCH and the eNB sends the DL grant to trigger), and the UE sends the DCI according to the eNB.
  • the (E)CCE position of the (E)PDCCH determines the corresponding ePUCCH number in the indicated ePUCCH region, and the collision between the UEs is avoided by the scheduling implementation of the eNB.
  • the UE When the UE needs to feed back the UCI corresponding to the multiple subframes in the indicated ePUCCH, it is required to jointly calculate an equivalent CCE location according to the CCE locations of the DCIs corresponding to the subframes that need to feed back the UCI. For example, it is specified that the number in the ePUCCH region is indicated according to the first CCE location occupied by the DCI.
  • the ePUCCH number is selected according to the CCE location corresponding to the DCI of the last subframe. .
  • the base station eNB configures multiple UEs into one group through RRC, allocates a group RNTI (special public RNTI when broadcasting), and assigns each UE a unique number within the group, and then passes the group.
  • the RNTI scrambles the common physical downlink control channel, and the ePUCCH number indicated in the DCI indicates that the multiple UEs in the group are in the indicated ePUCCH region, or the ePUCCH number is selected according to the unique number in the allocated group in the indicated ePUCCH region. It is assumed that the eNB assigns UE-0, UE-2, ... UE-7 to group-1, and the intra-group number corresponding to each UE is 0, 1, ..., 7.
  • each group of UEs may be indicated by 3-bit, and the start number of one ePUCCH is combined.
  • the DCI in the C-PDCCH indicates the UEs of the UE-2, the UE-5, and the U-6
  • the ePUCCH number corresponding to the UE-2 is N
  • the UE-5 corresponds to ePUCCH number
  • the ePUCCH corresponding to UE-6 is numbered N+2, and so on.
  • the DCI of the C-PDCCH may indicate the start number of the ePUCCH, and all UEs of the group superimpose the intra-group number on the basis of the starting ePUCCH number. For example, if the starting number is N, the ePUCCH number corresponding to UE-n is N+n.
  • the UE scheduled for downlink transmission in the DL subframe is selected according to the CCE position of the DL grant in the indicated ePUCCH region. Corresponding ePUCCH number.
  • an equivalent CCE location is generated according to CCE locations of DL grants of multiple DL subframes. For example, in the DCI, the N-bit indicates a certain downlink subframe before the current subframe, and the UE that detects the C-PDCCH determines whether it needs to be on the indicated ePUCCH according to whether the indicated downlink subframe is scheduled.
  • the number in the ePUCCH region is selected according to the CCE location (eg, the first CCE location) of the (E)PDCCH of the DL grant transmitted by the eNB.
  • the UCI type that needs to be fed back in the ePUCCH may be indicated by the C-PDCCH, and the specific indication manner includes: using different RNTIs, or explicitly indicating the UCI feedback type in the DCI, and further, the user terminal may The indicated UCI type is fed back.
  • UCI type includes ACK/NACK feedback, multi-subframe ACK/NACK feedback, multi-carrier ACK/NACK feedback, multi-subframe multi-carrier ACK/NACK feedback, CSI feedback, multi-carrier CSI feedback, SRS feedback, multi-carrier SRS, etc. .
  • the specific implementation manner of distinguishing the UCI feedback type by using the RNTI is to allocate different values of the RNTIs in the existing reserved RNTI value range for scrambling C-PDCCHs of different UCI feedback types.
  • each of the UCI types that need feedback is respectively corresponding to the X bit in the DCI.
  • the C-PDCCH cross-carrier indication ePUCCH includes: on the basis of the foregoing steps S1 to S3, when the base station eNB and the UE support multi-carrier transmission, the eNB may send the C-PDCCH in the carrier N.
  • the information indicating the ePUCCH on the carrier M may be specifically added by adding a carrier indication field (CIF) of 3 or more bits to the DCI.
  • CIF carrier indication field
  • the DCI of the C-PDCCH in the foregoing embodiment may be a DCI dedicated to indicating an ePUCCH, or may be a DCI including an indication other than the indication ePUCCH.
  • the embodiment of the present application further provides a channel selection device, which is mainly used to perform a channel selection method provided by the foregoing content in the embodiment of the present application. Introduction.
  • FIG. 4 is a schematic diagram of a channel selection apparatus according to an embodiment of the present application.
  • the channel selection apparatus mainly includes a first indication unit 41 and a second indication unit 42, wherein:
  • the first indication unit 41 is configured to: indicate, according to the common physical downlink control channel, a time domain resource location and a frequency domain resource location of the enhanced physical uplink control channel region;
  • the second indication unit 42 is configured to indicate that a group of user terminals transmit an enhanced physical uplink control channel in the indicated enhanced physical uplink control channel region, where different user terminals are in different enhanced physical uplink control channel regions that are indicated The transmission enhances the physical uplink control channel.
  • the common physical downlink control channel indicates that the time domain resource location and the frequency domain resource location of the physical uplink control channel are enhanced, and the different user terminals are instructed to transmit in the different enhanced physical uplink control channel regions that are indicated.
  • the physical uplink control channel is enhanced to achieve the purpose of transmitting data in different enhanced physical uplink control channels by different user terminals, thereby solving the uplink scheduling in the prior art when a large number of users transmit data in the enhanced physical uplink control channel.
  • the technical problem that the downlink signaling overhead caused by the authorization is too large, thereby achieving the technical effect of avoiding mutual interference when simultaneously indicating a plurality of user terminals.
  • the first indication unit includes: a first determining module, configured to use, as a sub-frame of the enhanced physical uplink control channel region, the Nth subframe after the subframe that sends the common physical downlink control channel, where the common physical downlink The subframe in which the control channel region is located is the time domain resource location; or the second determining module is configured to send the Nth uplink subframe after the subframe carried in the common physical downlink control channel as the enhanced physical uplink control channel region a sub-frame, where the subframe in which the common physical downlink control channel region is located is a time domain resource location; or a third determining module, configured to acquire downlink control information DCI carried in the common physical downlink control channel, and enhance physical uplink according to the DCI indication The time domain resource location of the control channel region.
  • a first determining module configured to use, as a sub-frame of the enhanced physical uplink control channel region, the Nth subframe after the subframe that sends the common physical downlink control channel, where the common physical downlink The subframe in which
  • N is configured in any one of the following ways: controlling RRC configuration by radio resources, configuring by downlink control information DCI, and pre-setting in standards.
  • the third determining module is configured to: when the user terminal detects the common physical downlink control channel for indicating the enhanced physical uplink control channel on the downlink subframe N, where the common physical downlink control channel indicated in the DCI is located.
  • the N subframes after the subframe serve as subframes in which the enhanced physical uplink control channel region is located.
  • the third determining module is configured to represent the downlink subframe N in the range of 1 to 8 by using 3 bits.
  • the first indication unit includes: a configuration module, configured to configure a frequency domain resource location for the enhanced physical uplink control channel according to the radio resource control RRC signaling; or a first indication module, configured to perform the bearer according to the common physical downlink control channel
  • the downlink control information DCI indicates the frequency domain resource location of the enhanced physical uplink control channel region
  • the fourth determining module is configured to determine the frequency domain resource of the enhanced physical uplink control channel region according to the CCE location of the control channel element occupied by the common physical downlink control channel. position.
  • the configuration module is configured to indicate, by using a 10-bit bitmap bitmap, an interlace corresponding to the enhanced physical uplink control channel, or by using a 4-bit indication, the enhanced physical uplink control channel occupies any one of the 10 interleaving units interlace interlace.
  • the first indication module is configured to indicate, by using a 10-bit bitmap bitmap, an interlace unit interlace corresponding to the enhanced physical uplink control channel, or by using a ratio of 4 Specifically, the enhanced physical uplink control channel occupies any interlace interlace of 10 interlaces.
  • the fourth determining module is configured to indicate, by using a specified mapping table, a mapping of a first control channel element CCE location number J occupied by the common physical downlink control channel and an interlace number interlace number K corresponding to the enhanced physical uplink control channel. relationship.
  • the mapping relationship between the first control channel element CCE location number J of the common physical downlink control channel and the interleaving unit interlace number K corresponding to the enhanced physical uplink control channel is indicated by the specified mapping table: the radio resource control RRC is based on The first CCE location number occupied by the common physical downlink control channel, and the first control channel element CCE location number J is configured to correspond to the interleaving unit interlace number K.
  • the second indication unit includes: a fifth determining module, configured to determine, according to the control channel element CCE location occupied by the downlink control information DCI, a corresponding enhanced physical uplink control channel number in the indicated enhanced physical uplink control channel region; or a second indication module, configured to configure, according to the RRC, a plurality of user terminals as a group of user terminals, scramble the common physical downlink control channel by using the group RNTI, and indicate that each user terminal in the group of user terminals is in the enhanced a corresponding enhanced physical uplink control channel number in the physical uplink control channel region; or a sixth determining module, configured to indicate multiple downlink subframes, and the downlink downlink user terminal scheduled in the multiple downlink subframes according to the downlink
  • the control channel element CCE location occupied by the control information DCI determines the corresponding enhanced physical uplink control channel number in the indicated enhanced physical uplink control channel.
  • the fifth determining module is configured to: when the user terminal feeds back the uplink control information UCI corresponding to the multiple subframes in the indicated enhanced physical uplink control channel, according to the downlink scheduling grant DL grant corresponding to the multiple subframes
  • the control channel element CCE location calculates the equivalent CCE location and enhances the physical uplink control channel number according to the equivalent CCE location indication.
  • the equivalent CCE location is a control channel element CCE location corresponding to a last subframe of the plurality of subframes.
  • the second indication module is configured to: the downlink control information DCI is displayed, and each user terminal in the group of user terminals corresponds to the indicated enhanced physical uplink control channel region.
  • the enhanced physical uplink control channel number is determined; or the enhanced physical uplink control channel number corresponding to the user terminal is determined within the indicated enhanced physical uplink control channel region according to the intra-group unique number assigned to each user terminal of the group of user terminals.
  • the downlink control information DCI indicates that the enhanced physical uplink control channel number corresponding to each of the user terminals in the enhanced physical uplink control channel region that is indicated in the group of user terminals includes: combining the starting number of the enhanced physical uplink control channel, An enhanced physical uplink control channel number corresponding to one user terminal in a group of user terminals is indicated every X bits.
  • the X-bit indicates that the enhanced physical uplink control channel number corresponding to one user terminal in the group of user terminals includes: when the starting number of the enhanced physical uplink control channel is N, the downlink control in the common physical downlink control channel
  • the information DCI indicates an enhanced physical uplink control channel number of the user terminal UE-2, the user terminal UE-5, and the user terminal UE-6, wherein the user terminal UE-2, the user terminal UE-5, and the user
  • the enhanced physical uplink control channel numbers of the terminal UE-6 are N, N+1 and N+2, respectively.
  • determining, according to the intra-group unique number assigned to each user terminal of the group of user terminals, the enhanced physical uplink control channel number corresponding to the user terminal in the indicated enhanced physical uplink control channel region including: The number is increased to the starting number of the enhanced physical uplink control channel, and the enhanced physical uplink control channel number corresponding to the user terminal is obtained, where the starting number is the number indicated in the downlink control information DCI of the common physical downlink control channel.
  • the starting number of the enhanced physical uplink control channel is uniquely numbered in the group, and the enhanced physical uplink control channel number corresponding to the user terminal is obtained, if the starting number of the enhanced physical uplink control channel is N, The enhanced physical uplink control channel number corresponding to the user terminal UE-n in the group user terminal is N+n.
  • the sixth determining module is configured to: when the user terminal feeds back the multiple downlink subframes, determine an equivalent CCE location according to the control channel element CCE location of the downlink scheduling grant DL grant of the multiple downlink subframes, and according to The equivalent CCE position determines the enhanced physical uplink control channel number.
  • the device before the user terminal feeds back the multiple downlink subframes, the device further includes: determining, by using the N-bit, the downlink subframe, the downlink subframe of the current subframe, and determining that the user terminal is in any one of the indicated downlink subframes.
  • Whether the user terminal is scheduled to perform feedback to the plurality of downlink subframes includes: if the user terminal is determined to be scheduled in any of the indicated downlink subframes, the user terminal feeds back the plurality of downlink subframes.
  • the equivalent CCE location is the first control channel element CCE location.
  • the apparatus further includes a third indication unit, configured to enhance the physical uplink control channel by using a common physical downlink control channel cross-carrier indication.
  • a third indication unit configured to enhance the physical uplink control channel by using a common physical downlink control channel cross-carrier indication.
  • the third indication unit comprises: implementing a common physical downlink control channel cross-carrier indication to enhance the physical uplink control channel by adding a 3-bit or greater than 3-bit carrier indication field CIF in the downlink control information DCI.
  • the downlink control information DCI may be any one of the following: a downlink control information DCI for indicating an enhanced physical uplink control channel, and downlink control information DCI for indicating an enhanced physical uplink control channel and a non-enhanced physical uplink control channel. .
  • the embodiment further provides a non-transitory computer readable storage medium storing computer instructions, the computer instructions causing the computer to perform the method provided by any of the above method embodiments .
  • the embodiment further provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer,
  • the computer is capable of performing the methods provided by any of the above method embodiments.
  • FIG. 5 is a schematic diagram of a hardware structure of an electronic device for performing a channel selection method according to the embodiment. As shown in FIG. 5, the electronic device includes:
  • One or more processors 51 and a memory 52 are exemplified by a processor 51 in FIG.
  • the electronic device can also include an input device 53 and an output device 54.
  • the processor 51, the memory 52, the input device 53, and the output device 54 may be connected by a bus or other means, as exemplified by a bus connection in FIG.
  • the memory 52 is used as a non-transitory computer readable storage medium for storing non-transitory a transient software program, a non-transitory computer executable program, and a module, such as a program instruction/module corresponding to a channel selection method in the embodiment of the present application (for example, the first indication unit 41 and the second indication shown in FIG. 4) Unit 42).
  • the processor 51 executes various functional applications and data processing of the server by running non-transitory software programs, instructions, and modules stored in the memory 52, that is, implementing the channel selection method in the above method embodiments.
  • the memory 52 may include a storage program area in which an operating system, an application required for at least one function, and a storage data area may be stored, wherein the storage data area may store data created according to use of the selection means of the channel, and the like.
  • memory 52 can include high speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.
  • memory 52 may optionally include memory remotely located relative to processor 51, which may be connected to the selection device of the channel over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the input device 53 can receive the input digital or character information and generate a key signal input related to user settings and function control of the channel selection device.
  • Output device 54 may include a display device such as a display screen.
  • the one or more modules are stored in the memory 52, and when executed by the one or more processors 51, perform a method of selecting a channel in any of the above method embodiments.
  • the electronic device of the embodiment of the present application exists in various forms, including but not limited to:
  • Mobile communication devices These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication.
  • Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.
  • Ultra mobile personal computer equipment belongs to the category of personal computers, Computing and processing functions, generally also have mobile Internet features.
  • Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.
  • Portable entertainment devices These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable car navigation devices.
  • the server consists of a processor, a hard disk, a memory, a system bus, etc.
  • the server is similar to a general-purpose computer architecture, but because of the need to provide highly reliable services, processing power and stability High reliability in terms of reliability, security, scalability, and manageability.
  • the disclosed technical contents may be implemented in other manners.
  • the device embodiments described above are only schematic.
  • the division of cells may be a logical function division.
  • multiple units or components may be combined or integrated into Another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, unit or module, and may be electrical or otherwise.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present application in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请公开了一种信道的选择方法和装置。其中，该方法包括：基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置和频域资源位置；指示一组用户终端在已指示的增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的增强物理上行控制信道区域内传输增强物理上行控制信道。本申请解决了现有技术中当有大量用户在增强物理上行控制信道中传输数据时，上行调度授权导致的下行信令开销过大的技术问题。

Description

信道的选择方法及装置
本申请要求于2016年02月05日提交中国专利局、申请号为201610082983.7、发明名称为“信道的选择方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，具体而言，涉及一种信道的选择方法和装置。
背景技术
现有的移动通信系统是指运营商通过部署无线接入网设备(如基站)和核心网设备(如归属位置寄存器，Home Location Register，简称HLR)等设备，为用户终端(如手机)提供通信服务的系统。移动通信经历了第一代、第二代、第三代、第四代的演变，其中，第一代移动通信是指最初的模拟、仅限语音通话的蜂窝电话标准，其主要采用的是模拟技术和频分多址(Frequency Division Multiple Access，简称FDMA)的接入方法；第二代移动通信引入了数字技术，其提高了网络容量、改善了话音质量和保密性，且第二代移动通信以“全球移动通信系统”(Global System for Mobile Communication，简称GSM)和“码分多址”(Code Division Multiple Access，简称CDMA IS-95)为代表；第三代移动通信主要指CDMA2000，WCDMA，TD-SCDMA三种技术，并且上述三种技术均是以码分多址作为接入技术的；第四代移动通信系统的标准在国际上相对统一，为国际标准化组织3GPP制定的长期演进(Long Term Evolution/Long Term Evolution-Advanced，简称LTE/LTE-A)，其下行基于正交频分多直接入(Orthogonal Frequency Division Multiple Access，简称OFDMA)，上行基于单载波频分多直接入(Single Carrier–Frequency Division Multiple Access，简称SC-FDMA)的接入方式， 第四代移动通信系统依据灵活的带宽和自适应的调制编码方式，达到了下行峰值速率1Gbps，上行峰值速率500Mbps的高速传输。在图1中简要示出了移动通信网络的基本架构，如图1所示，当用户终端与接入网(例如基站)连接时，接入网通过与核心网(例如，HLR)之间的回传链路向核心网传输数据，或者核心网通过该回传链路向用户终端(例如，手机)传输数据。
MuLTEfire为在LTE R13LAA下行传输方法的基础上，新定义的上行传输方法，该方法为可以独立工作于非授权频段的LTE技术，即stand-alone LTE-U。其中，MuLTEfire在上行复用方式采用与传统LTE上行SC-FDMA不同的B-IFDMA方式用于满足非授权频段的带宽占用的地区性规范要求，并在上行物理信道PUCCH中引入了增强物理上行控制信道ePUCCH来传输传统LTE中通过PUCCH传输的上行控制信息UCI(包括ACK/NACK，CSI，SR等)。由于B-IFDMA的资源分配特性，其最小资源分配颗粒度较大，例如图2所示，在图2中20MHz带宽下的有10个交织单元interlace，每个interlace的大小为10个频域上等间隔PRB，第0号为黑色的10个PRB。因此传统LTE中在每个上行子帧中均分配上行控制信道区域PUCCH region的方式对已MuLTEfire中采用B-IFDMA的上行复用方式而言，其增强物理上行控制信道区域ePUCCH region占用系统的带宽比例至少高达10％，但与此同时用户终端UE并没有如此大量的UCI需要传输。
为了解决上述ePUCCH在每个上行子帧固定存在带来控制开销过大的问题，需要通过动态指示的方法来触发UE的ePUCCH在指定的上行子帧的传输。现有触发方法包括通过DL/UL grant来单独指示每个UE的ePUCCH位置，类似于PUSCH的资源指示，优点是指示方式灵活，其问题主要是当有大量用户需要在ePUCCH传输时，UL grant带来的下行信令开销过大。
针对上述的问题，目前尚未提出有效的解决方案。
发明内容
本申请实施例提供了一种信道的选择方法和装置，以至少解决现有技术中当有大量用户在增强物理上行控制信道中传输数据时，上行调度授权导致的下行信令开销过大的技术问题。
根据本申请实施例的一个方面，提供了一种信道的选择方法，该方法包括：基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置和频域资源位置；指示一组用户终端在已指示的所述增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的所述增强物理上行控制信道区域内传输增强物理上行控制信道。
进一步地，基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置包括：将发送公共物理下行控制信道的子帧后的第N个子帧作为所述增强物理上行控制信道区域的所在子帧，其中，所述公共物理下行控制信道区域的所在子帧为所述时域资源位置；或者将发送所述公共物理下行控制信道中承载的子帧后的第N个上行子帧作为所述增强物理上行控制信道区域的所在子帧，其中，所述公共物理下行控制信道区域的所在子帧为所述时域资源位置；或者获取所述公共物理下行控制信道中承载的下行控制信息DCI，并根据所述DCI指示所述增强物理上行控制信道区域的时域资源位置。
进一步地，所述N通过以下任一种方式进行配置：通过无线资源控制RRC配置、通过下行控制信息DCI来配置以及在标准中预先设定。
进一步地，根据所述DCI指示所述增强物理上行控制信道的时域资源位置包括：当所述用户终端在下行子帧N上检测到用于指示所述增强物理上行控制信道的所述公共物理下行控制信道时，将所述DCI中指示的所述公共物理下行控制信道所在的当前子帧后的N个子帧作为所述增强物理上行控制信道区域的所在子帧。
进一步地，根据所述DCI指示所述增强物理上行控制信道的时 域资源位置包括：通过3比特表示范围为1至8的所述下行子帧N。
进一步地，基于公共物理下行控制信道指示增强物理上行控制信道区域的频域资源位置包括：根据无线资源控制RRC信令为所述增强物理上行控制信道配置所述频域资源位置；或者根据公共物理下行控制信道上承载的下行控制信息DCI指示所述增强物理上行控制信道区域的频域资源位置；或者根据所述公共物理下行控制信道占用的控制信道元素CCE位置确定所述增强物理上行控制信道区域的频域资源位置。
进一步地，根据无线资源控制RRC信令为所述增强物理上行控制信道配置所述频域资源位置包括：通过10比特的位图bitmap指示与所述增强物理上行控制信道对应的interlace，或者通过4比特指示所述增强物理上行控制信道占用10个交织单元interlace中的任意一个交织单元interlace。
进一步地，根据公共物理下行控制信道上承载的下行控制信息DCI指示所述增强物理上行控制信道的频域资源位置包括：通过10比特的位图bitmap指示与所述增强物理上行控制信道对应的交织单元interlace，或者，通过4比特指示所述增强物理上行控制信道占用10个interlace中的任意一个交织单元interlace。
进一步地，根据所述公共物理下行控制信道发送的控制信道元素CCE位置确定所述增强物理上行控制信道的频域资源位置包括：通过规定的映射表表示发送所述公共物理下行控制信道所占用的第I个控制信道元素CCE位置编号J和所述增强物理上行控制信道对应的交织单元interlace编号K的映射关系。
进一步地，通过规定的映射表表示发送所述公共物理下行控制信道的第I个控制信道元素CCE位置编号J和所述增强物理上行控制信道对应的交织单元interlace编号K的映射关系包括：所述无线资源控制RRC基于所述公共物理下行控制信道占用的第一个CCE位置编号，配置所述第一个控制信道元素CCE位置编号J对应至所述交织单元interlace编号K。
进一步地，指示一组用户终端在已指示的所述增强物理上行控制信道区域内传输增强物理上行控制信道包括：根据下行控制信息DCI占用的控制信道元素CCE位置确定已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号；或者根据无线资源控制RRC配置多个用户终端为一组用户终端，通过组RNTI加扰所述公共物理下行控制信道，并指示所述一组用户终端中每个用户终端在已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号；或者指示多个下行子帧，并在所述多个下行子帧中被调度下行传输的用户终端根据所述下行控制信息DCI占用的控制信道元素CCE位置选择已指示的所述增强物理上行控制信道中对应的增强物理上行控制信道编号。
进一步地，根据下行控制信息DCI占用的控制信道元素CCE位置确定已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号包括：当所述用户终端在已指示的所述增强物理上行控制信道中反馈多个子帧对应的上行控制信息UCI时，根据所述多个子帧对应的传输下行调度授权DL grant占用的控制信道元素CCE位置计算等效CCE位置，并根据所述等效CCE位置指示所述增强物理上行控制信道编号。
进一步地，所述等效CCE位置为所述多个子帧中最后一个子帧对应的控制信道元素CCE位置。
进一步地，根据无线资源控制RRC配置多个用户终端为一组用户终端，通过组RNTI加扰所述公共物理下行控制信道，并指示所述一组用户终端中每个用户终端在已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号包括：下行控制信息DCI显式指示所述一组用户终端内每个用户终端在已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号；或者根据为所述一组用户终端中每个用户终端分配的组内唯一编号在已指示的所述增强物理上行控制信道区域内指示与所述用户终端所述对应的增强物理上行控制信道编号。
进一步地，下行控制信息DCI显式指示所述一组用户终端内每个用户终端在已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号包括：结合所述增强物理上行控制信道的起始编号，每隔X比特指示所述一组用户终端内的一个用户终端对应的所述增强物理上行控制信道编号。
进一步地，每隔X比特指示所述一组用户终端内的一个用户终端对应的所述增强物理上行控制信道编号包括：当所述增强物理上行控制信道的起始编号为N时，所述公共物理下行控制信道中的下行控制信息DCI指示了用户终端UE-2、用户终端UE-5和用户终端UE-6的增强物理上行控制信道编号，其中，所述用户终端UE-2、所述用户终端UE-5和所述用户终端UE-6的所述增强物理上行控制信道编号分别为N，N+1和N+2。
进一步地，根据为所述一组用户终端中每个用户终端分配的组内唯一编号在已指示的所述增强物理上行控制信道区域内确定与所述用户终端所述对应的增强物理上行控制信道编号包括：叠加所述组内唯一编号至所述增强物理上行控制信道的起始编号，得到与所述用户终端对应的所述增强物理上行控制信道编号，其中，所述起始编号为所述公共物理下行控制信道的下行控制信息DCI中指示的编号。
进一步地，叠加所述组内唯一编号至所述增强物理上行控制信道的起始编号，得到与所述用户终端对应的所述增强物理上行控制信道编号包括：如果所述增强物理上行控制信道的起始编号为N，则与所述一组用户终端中用户终端UE-n对应的增强物理上行控制信道编号为N+n。
进一步地，指示一个或者多个下行子帧，并在所述一个或者多个下行子帧中被调度的下行传输的用户终端根据所述下行调度授权DL grant的控制信道元素CCE位置选择已指示的所述增强物理上行控制信道中对应的增强物理上行控制信道编号包括：当用户终端向所述多个下行子帧进行反馈时，根据所述多个下行子帧的下行授权 调度DL grant的控制信道元素CCE位置确定等效CCE位置，并根据所述等效CCE位置确定所述增强物理上行控制信道编号。
进一步地，在用户终端向所述多个下行子帧进行反馈之前，所述方法还包括：所述下行控制信息通过N-bit指示当前子帧的任一个下行子帧，判断所述用户终端在指示的所述任一个下行子帧中是否被调度；用户终端向所述多个下行子帧进行反馈包括：如果判断所述用户终端在指示的所述任一个下行子帧中被调度的情况下，所述用户终端向所述多个下行子帧进行反馈。
进一步地，所述等效CCE位置为第一个控制信道元素CCE位置。
进一步地，所述方法还包括：所述公共物理下行控制信道跨载波指示所述增强物理上行控制信道。
进一步地，所述公共物理下行控制信道跨载波指示所述增强物理上行控制信道包括：通过在下行控制信息DCI中添加3比特或者大于3比特的载波指示域CIF实现所述公共物理下行控制信道跨载波指示所述增强物理上行控制信道。
进一步地，所述下行控制信息DCI可以下任一种：为用于指示所述增强物理上行控制信道的下行控制信息DCI、为用于指示所述增强物理上行控制信道和非所述增强物理上行控制信道的下行控制信息DCI。
进一步地，所述公共物理下行控制信道通过以下任一种方式指示所述增强物理上行控制信道中的反馈的上行控制信息UCI的类型：通过不同的RNTI指示所述上行控制信息UCI的类型、通过下行控制信息DCI指示所述上行控制信息UCI的类型。
进一步地，所述上行控制信息UCI的类型包括以下任一种类型：确认字符ACK/否定确认NACK反馈、多子帧确认字符ACK/否定确认NACK反馈、多载波确认字符ACK/否定确认NACK反馈、多子帧和多载波确认字符ACK/否定确认NACK反馈、信道状态信息CSI反馈、多载波信道状态信息CSI反馈、参考信号SRS反馈以及多载波参考信号SRS反馈。
进一步地，通过不同的RNTI指示所述上行控制信息UCI的类型包括：将预留RNTI的取值范围中分配的不同取值的RNTI分别加扰发送不同所述上行控制信息UCI类型的所述公共物理下行控制信道。
进一步地，通过下行控制信息DCI指示所述上行控制信息UCI的类型包括：通过所述下行控制信息DCI中的X比特指示反馈的所述下行控制信息UCI类型。
进一步地，通过所述下行控制信息DCI中的X比特确定反馈的所述下行控制信息UCI类型包括：通过3比特指示ACK/NACK反馈、通过3比特指示多子帧ACK/NACK反馈、通过3比特指示多载波ACK/NACK反馈、通过3比特指示多子帧和多载波ACK/NACK反馈、通过3比特指示CSI反馈、通过3比特指示多载波CSI反馈、通过3比特指示SRS反馈以及通过3比特指示多载波SRS反馈。
根据本申请实施例的另一方面，还提供了一种信道的选择装置，该装置包括：第一指示单元，用于基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置和频域资源位置；第二指示单元，用于指示一组用户终端在已指示的所述增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的所述增强物理上行控制信道区域内传输增强物理上行控制信道。
进一步地，所述第一指示单元包括：第一确定模块，用于将发送公共物理下行控制信道的子帧后的第N个子帧作为所述增强物理上行控制信道区域的所在子帧，其中，所述公共物理下行控制信道区域的所在子帧为所述时域资源位置；或者第二确定模块，用于将发送所述公共物理下行控制信道中承载的子帧后的第N个上行子帧作为所述增强物理上行控制信道区域的所在子帧，其中，所述公共物理下行控制信道区域的所在子帧为所述时域资源位置；或者第三确定模块，用于获取所述公共物理下行控制信道中承载的下行控制信息DCI，并根据所述DCI指示所述增强物理上行控制信道区域的 时域资源位置。
进一步地，所述第一指示单元包括：配置模块，用于根据无线资源控制RRC信令为所述增强物理上行控制信道配置所述频域资源位置；或者第一指示模块，用于根据公共物理下行控制信道上承载的下行控制信息DCI指示所述增强物理上行控制信道区域的频域资源位置；或者第四确定模块，用于根据所述公共物理下行控制信道占用的控制信道元素CCE位置确定所述增强物理上行控制信道区域的频域资源位置。
进一步地，所述第二指示单元包括：第五确定模块，用于根据下行控制信息DCI占用的控制信道元素CCE位置确定已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号；或者第二指示模块，用于根据无线资源控制RRC配置多个用户终端为一组用户终端，通过组RNTI加扰所述公共物理下行控制信道，并指示所述一组用户终端中每个用户终端在已指示的所述增强物理上行控制信道区域中对应的增强物理上行控制信道编号；或者第六确定模块，用于指示多个下行子帧，并在所述多个下行子帧中被调度的下行传输的用户终端根据所述下行调度授权DL grant占用的控制信道元素CCE位置确定已指示的所述增强物理上行控制信道中对应的增强物理上行控制信道编号。
本申请实施例还提供了一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储有计算机指令，所述计算机指令使所述计算机执行本申请上述信道的选择方法。
本申请实施例还提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，计算机能够执行本申请上述信道的选择方法。
本申请实施例还提供了一种电子设备，包括：至少一个处理器；以及，与所述至少一个处理器通信连接的存储器；其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被设置为用于执行本申请上述 信道的选择方法。
在本申请实施例中，采用基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置和频域资源位置；指示一组用户终端在已指示的所述增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的所述增强物理上行控制信道区域内传输增强物理上行控制信道的方式，通过公共物理下行控制信道指示增强物理上行控制信道的时域资源位置和频域资源位置，并指示不同的用户终端在已指示的不同的增强物理上行控制信道区域内传输增强物理上行控制信道，达到了不同的用户终端在不同的增强物理上行控制信道内传输数据的目的，进而解决了现有技术中当有大量用户在增强物理上行控制信道中传输数据时，上行调度授权导致的下行信令开销过大的技术问题，并且实现了避免同时指示多个用户终端时互相干扰的技术效果。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是根据现有技术的一种移动通信网络的基本架构的示意图；
图2是根据现有技术的一种资源分配的示意图；
图3是根据本申请实施例的一种信道选择方法的流程图；以及
图4是根据本申请实施例的一种信道选择装置的示意图；
图5是根据本申请实施例的一种执行信道的选择的电子设备的硬件结构图。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人 员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
实施例1
根据本申请实施例，提供了一种信道选择法实施例，需要说明的是，在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
图3是根据本申请实施例的一种信道选择方法的流程图，如图3所示，该方法包括如下步骤：
步骤S302，基于公共物理下行控制信道(Common PDCCH，简称C-PDCCH)指示增强物理上行控制信道区域的时域资源位置和频域资源位置；
步骤S304，指示一组用户终端在已指示的增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的增强物理上行控制信道区域内传输增强物理上行控制信道。
需要说明的是，在本申请实施例中，可以通过同一控制信令同时向一组用户终端中的每个用户终端指示与之对应的增强物理上行控制信道的编号。进而每个用户终端可以根据接收到的指示在与之 对应的增强物理上行控制信道内传输控制信令，从而，避免了多个用户终端UE之间的碰撞。
在本申请实施例中，通过公共物理下行控制信道指示增强物理上行控制信道的时域资源位置和频域资源位置，并指示不同的用户终端在已指示的不同的增强物理上行控制信道区域内传输增强物理上行控制信道，达到了不同的用户终端在不同的增强物理上行控制信道内传输数据的目的，进而解决了现有技术中当有大量用户在增强物理上行控制信道中传输数据时，上行调度授权导致的下行信令开销过大的技术问题，并且实现了避免同时指示多个用户终端时互相干扰的技术效果。
需要说明的是，在本申请实施例中描述的移动通信具体技术不限，可以为WCDMA、CDMA2000、TD-SCDMA、WiMAX、LTE/LTE-A、LAA、MuLTEfire以及后续可能出现的第五代、第六代、第N代移动通信技术。
本申请中描述的用户终端为可以支持陆地移动通信系统的通信协议的终端侧产品，例如，特制通信的调制解调器模块(Wireless Modem)，该特制通信的调制解调器模块可以被手机、平板电脑、数据卡等各种类型的终端形态集成从而完成通信功能。
为方便描述，在本申请以下实施例中，采用第四代移动通信系统LTE/LTE-A及其衍生的MuLTEfire作为举例进行说明，其中用户终端表示为UE(User Equipment)，接入网设备表示为基站eNB或者接入点(Access Point，简称AP)。
基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置方式可以有很多种，在本申请实施例中，可以采用下述三种方式中的任一种方式指示增强物理上行控制信道区域的时域资源位置：
方式一：将发送公共物理下行控制信道的子帧后的第N个子帧作为增强物理上行控制信道区域的所在子帧，其中，公共物理下行控制信道区域的所在子帧为时域资源位置，N通过以下任一种方式 进行配置：通过无线资源控制RRC配置、在标准中预先设定。
具体地，当用户终端在下行子帧M上检测到用于指示ePUCCH时域资源位置的C-PDCCH时，可以将当前下行子帧M后的N个子帧(即，M+N)作为ePUCCH Region的所在子帧，进而可以在子帧M+N上发送该ePUCCH。
方式二：将发送公共物理下行控制信道中承载的子帧后的第N个上行子帧作为增强物理上行控制信道区域的所在子帧，其中，公共物理下行控制信道区域的所在子帧为时域资源位置，其中，在本申请实施例中，N可以通过以下任一种方式进行配置：通过无线资源控制RRC配置、通过下行控制信息DCI来配置、在标准中预先设定。
具体地，还可以根据发送公共物理下行控制信道C-PDCCH上承载的子帧后的第N个上行子帧确定增强物理上行控制信道区域ePUCCH region所在的子帧，进而通过该子帧指示ePUCCH的时域资源位置。
方式三：获取公共物理下行控制信道中承载的下行控制信息DCI，并根据DCI指示增强物理上行控制信道的时域资源位置。
其中，下行控制信息DCI包含指示增强物理上行控制信道的时域资源位置的信息，具体地，当用户终端UE在下行子帧N上检测到用于指示增强物理上行控制信道ePUCCH的公共物理下行控制信道C-PDCCH时，可以根据在C-PDCCH传输中的下行控制信息DCI确定增强物理上行控制信道区域ePUCCH Region的时域资源位置，例如，通过下行控制信息DCI中指示的公共物理下行控制信道所在的当前子帧后的第N个子帧作为增强物理上行控制信道区域ePUCCH Region的所在子帧。其中，可以通过3比特表示范围为1至8的下行子帧N。
基于公共物理下行控制信道指示增强物理上行控制信道区域的频域资源位置方式可以有很多种，在本申请实施例中，可以采用下述三种方式中的任一种方式指示增强物理上行控制信道区域的频域 资源位置：
方式一：根据无线资源控制RRC信令为增强物理上行控制信道区域配置频域资源位置。
具体地，接入网设备(例如，基站eNB)可以向用户终端下发的无线资源控制RRC信令，进而来通知用户终端与其对应的ePUCCH在频域中的位置。
可以通过以下任一种方法来指示ePUCCH区域的频域资源位置，例如，20MHz带宽下具有10个interlace，因此可以通过10比特的位图bitmap，来指示与增强物理上行控制信道ePUCCH对应的交织单元interlace；还可以通过4比特指示增强物理上行控制信道ePUCCH占用10个交织单元interlace中的任意一个交织单元interlace。
方式二：根据公共物理下行控制信道上承载的下行控制信息DCI指示增强物理上行控制信道区域的频域资源位置。
具体地，除上述方式一来指示增强物理上行控制信道ePUCCH区域的频域资源位置之外，还可以通过方式二来指示ePUCCH区域的频域资源位置，例如，20MHz带宽下具有10个interlace，因此可以通过10比特的位图bitmap，来指示与增强物理上行控制信道ePUCCH对应的交织单元interlace；还可以通过4比特指示增强物理上行控制信道ePUCCH占用10个交织单元interlace中的任意一个交织单元interlace。
方式三：根据公共物理下行控制信道占用的控制信道元素CCE位置确定增强物理上行控制信道区域的频域资源位置。
除上述方式一和方式二之外，还可以通过方式三来指示与增强物理上行控制信道ePUCCH区域的频域资源位置。
具体地，可以通过规定的映射表表示发送公共物理下行控制信道所占用的第I个控制信道元素CCE位置编号J和增强物理上行控制信道对应的交织单元interlace编号K的映射关系。其中，该映射关系可以通过无线资源控制RRC进行配置，还可以通过标准预设规 定来进行配置。
例如，无线资源控制RRC基于公共物理下行控制信道占用的第一个CCE位置编号，配置第一个控制信道元素CCE位置编号J对应至交织单元interlace编号K。也即是，根据C-PDCCH占用的第一个CCE位置编号，RRC直接将第一个CCE位置编号直接对应到交织单元interlace的编号，假设C-PDCCH的第一个CCE编号为0，则ePUCCH在第0个交织单元interlace上发送。
指示多个用户终端在已指示的增强物理上行控制信道区域内传输增强物理上行控制信道的方式可以有很多种，在本申请实施例中，可以包括以下任一种方式：
方式一：根据下行控制信息DCI占用的控制信道元素CCE位置确定已指示的增强物理上行控制信道区域中对应的增强物理上行控制信道编号。
基站可以向用户终端发送下行控制信息DCI，来触发用户终端UE反馈上行控制信息UCI。例如，基站可以通过下行数据信道PDSCH向用户终端UE发送上行授权调度DL grant，以触发用户终端UE反馈PDSCH对应的ACK/NACK。然后，用户终端UE可以根据基站传输下行控制信息DCI的(E)PDCCH的EEC位置确定在已指示的ePUCCH region中对应的ePUCCH编号，实现了通过基站的调度来避免用户终端之间的碰撞。
具体地，当用户终端在已指示的增强物理上行控制信道中反馈多个子帧对应的上行控制信息UCI时，可以先根据需要反馈UCI的多个子帧对应的传输下行控制信息DCI的控制信道元素CCE位置计算等效CCE位置，并根据该等效CCE位置指示增强物理上行控制信道ePUCCH编号，其中，等效CCE位置可以为多个子帧中最后一个子帧对应的控制信道元素CCE位置。
方式二：根据无线资源控制RRC配置多个用户终端为一组用户终端，通过组RNTI加扰公共物理下行控制信道，并指示一组用户终端中每个用户终端在已指示的增强物理上行控制信道区域中对应的 增强物理上行控制信道编号。
具体地，基站可以通过RRC配置多个用户终端UE为一组用户终端，每个组均分配一个组RNTI(需要广播时为特殊公共RNTI)，并为该组内的每个用户终端UE分配一个组内唯一编号；然后通过该组RNTI加扰公共物理下行控制信道C-PDCCH。加扰C-PDCCH之后，可以通过下行控制信息DCI显示该一组用户终端内每个用户终端在已指示的增强物理上行控制信道区域ePUCCH region中对应的增强物理上行控制信道ePUCCH编号；对于通过DCI显示指示的方式，可以结合增强物理上行控制信道ePUCCH的起始编号，每X比特指示一组用户终端内的一个用户终端对应的增强物理上行控制信道ePUCCH编号。例如，当增强物理上行控制信道的起始编号为N时，公共物理下行控制信道中的下行控制信息DCI同时指示了用户终端UE-2、用户终端UE-5和用户终端UE-6的增强物理上行控制信道编号，其中，用户终端UE-2、用户终端UE-5和用户终端UE-6的所述增强物理上行控制信道编号分别为N，N+1和N+2。
在本申请实施例中，还可以根据为该一组用户终端中每个用户终端分配的组内唯一编号在已指示的增强物理上行控制信道区域ePUCCH region内确定与用户终端对应的增强物理上行控制信道ePUCCH编号。对于通过RRC分配的组内唯一编号选取ePUCCH编号的方式，可以通过叠加组内唯一编号至增强物理上行控制信道的起始编号，得到与用户终端对应的增强物理上行控制信道编号，其中，起始编号为公共物理下行控制信道的下行控制信息DCI中指示的编号。例如，如果增强物理上行控制信道的起始编号为N，则与一组用户终端中任意用户终端UE-n对应的增强物理上行控制信道编号为N+n。
方式三：指示多个下行子帧，并在多个下行子帧中被调度的下行传输的用户终端根据下行控制信息DCI占用的控制信道元素CCE位置选择已指示的增强物理上行控制信道中对应的增强物理上行控制信道编号。
具体地，下行控制信息DCI中通过N-bit来指示当前子帧前的某个下行子帧，并判断占用C-PDCCH的用户终端UE在所指示的任一个下行子帧中是否被调度，如果检测到占用该C-PDCCH的用户终端UE在所指示的下行子帧中被调度，则在所指示的ePUCCH上进行反馈。当用户终端UE向多个下行子帧进行反馈时，可以先根据多个下行子帧的下行授权调度DL grant占用的控制信道元素CCE位置确定一个等效CCE位置，并根据该等效CCE位置确定增强物理上行控制信道(ePUCCH)编号，其中，该等效CCE位置可以为第一个控制信道元素CCE位置。
本申请提供的信道选择方法还包括：公共物理下行控制信道C-PDCCH可以指示增强物理上行控制信道ePUCCH中需要反馈的上行控制信息UCI的类型，其中，可以通过以下任一种方式指示ePUCCH中需要反馈的UCI的类型：通过不同的RNTI指示上行控制信息UCI的类型，还可以通过下行控制信息DCI指示上行控制信息UCI的类型。
其中，上述需要反馈的上行控制信息UCI的类型包括以下任一种类型：确认字符ACK/否定确认NACK反馈、多子帧确认字符ACK/否定确认NACK反馈、多载波确认字符ACK/否定确认NACK反馈、多子帧和多载波确认字符ACK/否定确认NACK反馈、信道状态信息CSI反馈、多载波信道状态信息CSI反馈、参考信号SRS反馈以及多载波参考信号SRS反馈。
具体地，通过不同的RNTI指示上行控制信息UCI的类型包括：将预留RNTI的取值范围中分配的不同取值的RNTI分别加扰发送不同所述上行控制信息UCI类型的所述公共物理下行控制信道。
通过下行控制信息DCI指示上行控制信息UCI的类型包括：通过下行控制信息DCI中的X比特指示反馈的下行控制信息UCI类型。其中，通过下行控制信息DCI中的X比特确定反馈的下行控制信息UCI类型包括：通过3比特指示ACK/NACK反馈、通过3比特指示多子帧ACK/NACK反馈、通过3比特指示多载波ACK/NACK 反馈、通过3比特指示多子帧和多载波ACK/NACK反馈、通过3比特指示CSI反馈、通过3比特指示多载波CSI反馈、通过3比特指示SRS反馈以及通过3比特指示多载波SRS反馈。
本申请提供的信道的选择方法还包括：公共物理下行控制信道跨载波指示增强物理上行控制信道。具体地，基站可以在载波N中发送C-PDCCH来指示载波M上的ePUCCH信息。其中，公共物理下行控制信道跨载波指示增强物理上行控制信道可以通过在下行控制信息DCI中添加3比特或者大于3比特的载波指示域CIF的方式，来实现公共物理下行控制信道跨载波指示增强物理上行控制信道。
需要说明的是，在本申请上述实施例中，公共物理下行控制信道C-PDCCH中的DCI可以为专用于指示增强物理上行控制信道的下行控制信息；还可以除包含用于指示增强物理上行控制信道的下行控制信息之外，还包括其他指示。
本申请提供的信道的选择方法为通过公共物理下行控制信道C-PDCCH来指示多个用户终端UE的增强物理上行控制信道ePUCCH的方法，通过本申请提供的信道选择方法可以在降低控制信令开销的前提下，支持灵活的指示不同用户终端UE在不同的ePUCCH上发送,并避免了用户终端UE间的碰撞。
实施例2
本申请实施例中提供的信道选择方法中，通过公共物理下行控制信道(C-PDCCH)指示增强物理上行控制信道(ePUCCH)时域资源位置和频域资源位置，具体为：
步骤S1，指示增强物理上行控制信道区域的时域位置。
具体地，包括：发送公共物理下行控制信道的子帧后的第N个子帧为增强物理上行控制信道区域所在子帧，其中N为RRC配置或预先规定；或者根据公共物理下行控制信道上承载的下行控制信息DCI指示的当前子帧后的第N个子帧为增强物理上行控制信道区域所在子帧。
步骤S2，指示增强物理上行控制信道区域的频域位置。
具体地，包括：根据无线资源控制RRC信令配置的资源位置；根据公共物理下行控制信道上承载的下行控制信息DCI指示的无线资源位置；根据发送公共物理下行控制信道的CCE位置确定增强物理上行控制信道区域的频域位置。
步骤S3，指示一组终端在所指示的增强物理上行控制信道区域内传输增强物理上行控制信道。
具体地，包括：用户终端UE根据DL grant占用的控制信道元素CCE位置确定在指示的ePUCCH region中对应的ePUCCH编号，通过基站eNB的调度实现来避免UE间的碰撞；或者通过RRC配置多个UE到一组，通过组RNTI加扰公共物理下行控制信道，显示指示该组内多个UE在指示的ePUCCH region中对应的ePUCCH编号；或者通过指示多个下行子帧DL subframe，在该DL subframe中的被调度下行传输的UE根据其DL grant占用的CCE位置选择在指示的ePUCCH region中对应的ePUCCH编号。
在本申请实施例中，还包括：上述CPDCCH与其指示的ePUCCH可以在不同的载波上，即跨载波指示。
上述方案的具体实施方式为：
上述步骤S1中C-PDCCH指示ePUCCH区域的时域资源位置可以通过下述方式来实现：
一种可选的方法为在发送公共物理下行控制信道C-PDCCH的子帧后的第N个子帧为增强物理上行控制信道区域所在子帧，其中N为RRC配置或标准中预先规定。其中，当UE在下行子帧M上成功检测到用于指示ePUCCH资源位置的C-PDCCH时，则在子帧M+N上发送ePUCCH。
另一种可选的方法为根据公共物理下行控制信道上承载的下行控制信息DCI指示的当前子帧后的第N个子帧为增强物理上行控制信道区域所在子帧。当UE在下行子帧M上成功检测到用于指示ePUCCH资源位置的C-PDCCH时，根据C-PDCCH上DCI中的指示内容确定ePUCCH对应的子帧编号，例如通过3-bit来表示范围为 1-8的N。
另一种可选的方法为根据发送公共物理下行控制信道上承载的子帧后的第N个上行子帧为增强物理上行控制信道区域所在子帧，其中N为RRC配置或标准中预先规定或由DCI指示。
上述步骤S2中C-PDCCH指示ePUCCH区域频域资源位置可以通过下述方式来实现：
基于上述步骤S1中的时域位置指示的基础上，进一步指示增强物理上行控制信道区域的频域位置包括：
一种方式为根据无线资源控制RRC信令配置的资源位置，eNB通过RRC信令通知UE其对应的ePUCCH在频域的资源位置，例如通过10-bit的位图bitmap方式指示ePUCCH对应的interlace，或者通过4-bit指示ePUCCH占用10个交织单元interlace中的某个interlace。
另一种方式为根据公共物理下行控制信道上承载的下行控制信息DCI指示的无线资源位置，例如通过10-bit的bitmap方式指示ePUCCH对应的interlace，或者通过4-bit指示ePUCCH占用10个interlace中的某个interlace。
还有一种方式为根据发送公共物理下行控制信道占用的CCE位置确定增强物理上行控制信道区域的频域位置，可以规定一个映射变来表示发送C-PDCCH的第I个CCE位置编号J对应为ePUCCH对应的interlace编号K，该映射关系可以通过RRC进行配置或者标准规定，例如，根据C-PDCCH的第一个CCE位置编号，RRC配置CCE编号直接对应到interlace编号，假设C-PDCCH的第一个CCE编号为0，则ePUCCH在第0个interlace上发送。
上述步骤S3中C-PDCCH指示多个UE的ePUCCH编号的包括以下几种方式：
根据步骤S1和实施例步骤S2的组合，可以获得ePUCCH区域的时频资源位置，由于在相同时频资源(例如20MHz带宽时1个interlace对应的10个PRB)上的多个ePUCCH通过码分的方式进行 复用，需要进一步指示每个UE对应的ePUCCH的编号。在一个PRB内ePUCCH在时域和频域的复用方式可以采用类似PUCCH的方式，即时域通过正交码的和或频域采用循环移位序列的方式。即一个ePUCCH区域内可以支持正交的传输N个编号为0到N-1的ePUCCH，其编号对应该ePUCCH在时域所使用的正交码索引和或频域所使用的循环移位的序列索引。
具体为指示一组用户终端UE在所指示的增强物理上行控制信道区域内传输增强物理上行控制信道方法,包括以下几种：
一种可选的方式为当UE反馈的UCI是由eNB通过发送DCI进行触发的(例如UE反馈PDSCH对应的ACK/NACK时,UE接收PDSCH由eNB发送DL grant进行触发)，UE根据eNB发送DCI的(E)PDCCH的(E)CCE位置确定在指示的ePUCCH region中对应的ePUCCH编号，通过eNB的调度实现来避免UE间的碰撞。当UE需要在指示的ePUCCH反馈多个子帧对应的UCI时，需要根据多个需要反馈UCI的子帧所对应的DCI的CCE位置，联合计算一个等效CCE位置。举例来说，规定根据DCI所占的第一个CCE位置来指示ePUCCH区域中的编号，当UE反馈多个子帧对应的UCI时，则根据最后一个子帧的DCI所对应的CCE位置选择ePUCCH编号。
另一种可选的方式为基站eNB通过RRC配置多个UE为一组，通过分配一个组RNTI(广播时为特殊公共RNTI),并为每个UE分配一个组内唯一编号，然后通过该组RNTI加扰公共物理下行控制信道，DCI中显示的指示该组内多个UE在指示的ePUCCH region中对应的ePUCCH编号，或者在指示的ePUCCH区域内根据其分配组内唯一编号选择ePUCCH编号。假设eNB将UE-0，UE-2，...UE-7分到组-1，每个UE对应的组内编号为0，1，...，7。
对于上述通过DCI显示指示的方式，每通过3-bit可以指示一个组内UE，并结合一个ePUCCH的起始编号。例如，当ePUCCH起始编号为N时，C-PDCCH中DCI指示了UE-2，UE-5，U-6的3个UE，则UE-2对应的ePUCCH编号为N，UE-5对应的ePUCCH编号 为N+1，UE-6对应的ePUCCH编号为N+2，以此类推。
对于上述通过RRC分配的组内编号位置选择ePUCCH编号的方式，C-PDCCH的DCI中可以指示ePUCCH的起始编号，所有该组的UE在该起始ePUCCH的编号基础上叠加其组内编号，例如起始编号为N，则UE-n对应的ePUCCH编号为N+n。
还有可选的实现方式为通过在C-PDCCH的DCI中指示一个或多个DL subframe，在该DL subframe中的被调度下行传输的UE根据其DL grant的CCE位置选择在指示的ePUCCH region中对应的ePUCCH编号。当一个UE同时需要对多个指示的DL subframe进行反馈时，根据多个DL subframe的DL grant的CCE位置生成等效CCE位置。举例，DCI中通过N-bit来指示当前子帧前的某个下行子帧，则检测到该C-PDCCH的UE根据在所指示的下行子帧是否被调度来判断是否需要在指示的ePUCCH上进行反馈。如果该UE在所指示的下行子帧被调度，则根据eNB发送该DL grant的(E)PDCCH的CCE位置(如第一个CCE位置)来选择在ePUCCH区域中的编号。
在本申请上述实施例中，可以通过C-PDCCH指示ePUCCH中需要反馈的UCI类型，具体指示方式包括通过不同的RNTI，或者，在DCI中显式的指示UCI反馈类型，进而，用户终端可以根据指示的UCI类型进行反馈。
其中，UCI类型包括ACK/NACK反馈，多子帧ACK/NACK反馈，多载波ACK/NACK反馈，多子帧多载波ACK/NACK反馈，CSI反馈，多载波CSI反馈，SRS反馈以及多载波SRS等。
上述通过RNTI区分UCI反馈类型的具体实施方式为：在现有预留的RNTI取值范围中分配不同取值的RNTI分别用于加扰发送不同UCI反馈类型的C-PDCCH。
上述通过DCI中显式的来指示UCI反馈类型的具体实施方式为：通过在DCI中的X bit的来分别对应每一种需要反馈的UCI类型。例如3-bit来指示ACK/NACK反馈，多子帧ACK/NACK反馈，多载波ACK/NACK反馈，多子帧多载波ACK/NACK反馈,CSI反馈， 多载波CSI反馈，SRS反馈，多载波SRS反馈中的任一种UCI类型。
在本申请实施例中，C-PDCCH跨载波指示ePUCCH包括：在上述步骤S1至步骤S3的基础上，当基站eNB和UE均支持多载波传输时，eNB可以在载波N中发送C-PDCCH来指示载波M上的ePUCCH信息，具体可以通过在DCI中添加3或者更多比特的指示载波的(carrier indication field，简称为CIF)。
在本申请实施例中，针对上述实施例中的C-PDCCH的DCI，其可以为专用于指示ePUCCH的DCI，也可以为包含除指示ePUCCH以外其他指示的DCI。
本申请实施例还提供了一种信道的选择装置，该选择装置主要用于执行本申请实施例上述内容所提供的信道的选择方法，以下对本申请实施例送提供的信道的选择装置＝做具体介绍。
图4是根据本申请实施例的一种信道的选择装置的示意图，如图4所示，该信道的选择装置主要包括第一指示单元41和第二指示单元42，其中：
第一指示单元41，用于基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置和频域资源位置；
第二指示单元42，用于指示一组用户终端在已指示的增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的增强物理上行控制信道区域内传输增强物理上行控制信道。
在本申请实施例中，通过公共物理下行控制信道指示增强物理上行控制信道的时域资源位置和频域资源位置，并指示不同的用户终端在已指示的不同的增强物理上行控制信道区域内传输增强物理上行控制信道，达到了不同的用户终端在不同的增强物理上行控制信道内传输数据的目的，进而解决了现有技术中当有大量用户在增强物理上行控制信道中传输数据时，上行调度授权导致的下行信令开销过大的技术问题，从而实现了避免同时指示多个用户终端时互相干扰的技术效果。
可选地，第一指示单元包括：第一确定模块，用于将发送公共物理下行控制信道的子帧后的第N个子帧作为增强物理上行控制信道区域的所在子帧，其中，公共物理下行控制信道区域的所在子帧为时域资源位置；或者第二确定模块，用于将发送公共物理下行控制信道中承载的子帧后的第N个上行子帧作为增强物理上行控制信道区域的所在子帧，其中，公共物理下行控制信道区域的所在子帧为时域资源位置；或者第三确定模块，用于获取公共物理下行控制信道中承载的下行控制信息DCI，并根据DCI指示增强物理上行控制信道区域的时域资源位置。
可选地，N通过以下任一种方式进行配置：通过无线资源控制RRC配置、通过下行控制信息DCI来配置以及在标准中预先设定。
可选地，第三确定模块用于当用户终端在下行子帧N上检测到用于指示增强物理上行控制信道的公共物理下行控制信道时，将DCI中指示的公共物理下行控制信道所在的当前子帧后的N个子帧作为增强物理上行控制信道区域的所在子帧。
可选地，第三确定模块用于通过3比特表示范围为1至8的下行子帧N。
可选地，第一指示单元包括：配置模块，用于根据无线资源控制RRC信令为增强物理上行控制信道配置频域资源位置；或者第一指示模块，用于根据公共物理下行控制信道上承载的下行控制信息DCI指示增强物理上行控制信道区域的频域资源位置；或者第四确定模块，用于根据公共物理下行控制信道占用的控制信道元素CCE位置确定增强物理上行控制信道区域的频域资源位置。
可选地，配置模块用于通过10比特的位图bitmap指示与增强物理上行控制信道对应的interlace，或者通过4比特指示增强物理上行控制信道占用10个交织单元interlace中的任意一个交织单元interlace。
可选地，第一指示模块用于通过10比特的位图bitmap指示与增强物理上行控制信道对应的交织单元interlace，或者，通过4比 特指示增强物理上行控制信道占用10个interlace中的任意一个交织单元interlace。
可选地，第四确定模块用于通过规定的映射表表示发送公共物理下行控制信道所占用的第I个控制信道元素CCE位置编号J和增强物理上行控制信道对应的交织单元interlace编号K的映射关系。
可选地，通过规定的映射表表示发送公共物理下行控制信道的第I个控制信道元素CCE位置编号J和增强物理上行控制信道对应的交织单元interlace编号K的映射关系包括：无线资源控制RRC基于公共物理下行控制信道占用的第一个CCE位置编号，配置第一个控制信道元素CCE位置编号J对应至交织单元interlace编号K。
可选地，第二指示单元包括：第五确定模块，用于根据下行控制信息DCI占用的控制信道元素CCE位置确定已指示的增强物理上行控制信道区域中对应的增强物理上行控制信道编号；或者第二指示模块，用于根据无线资源控制RRC配置多个用户终端为一组用户终端，通过组RNTI加扰公共物理下行控制信道，并指示一组用户终端中每个用户终端在已指示的增强物理上行控制信道区域中对应的增强物理上行控制信道编号；或者第六确定模块，用于指示多个下行子帧，并在多个下行子帧中被调度的下行传输的用户终端根据所述下行控制信息DCI占用的控制信道元素CCE位置确定已指示的增强物理上行控制信道中对应的增强物理上行控制信道编号。
可选地，第五确定模块用于：当用户终端在已指示的增强物理上行控制信道中反馈多个子帧对应的上行控制信息UCI时，根据多个子帧对应传输的下行调度授权DL grant占用的控制信道元素CCE位置计算等效CCE位置，并根据等效CCE位置指示增强物理上行控制信道编号。
可选地，等效CCE位置为多个子帧中最后一个子帧对应的控制信道元素CCE位置。
可选地，第二指示模块用于：下行控制信息DCI显示一组用户终端内每个用户终端在已指示的增强物理上行控制信道区域中对应 的增强物理上行控制信道编号；或者根据为一组用户终端中每个用户终端分配的组内唯一编号在已指示的增强物理上行控制信道区域内确定与用户终端对应的增强物理上行控制信道编号。
可选地，下行控制信息DCI显示一组用户终端内每个用户终端在已指示的增强物理上行控制信道区域中对应的增强物理上行控制信道编号包括：结合增强物理上行控制信道的起始编号，每隔X比特指示一组用户终端内的一个用户终端对应的增强物理上行控制信道编号。
可选地，每X比特指示一组用户终端内的一个用户终端对应的增强物理上行控制信道编号包括：当增强物理上行控制信道的起始编号为N时，公共物理下行控制信道中的下行控制信息DCI指示了用户终端UE-2、用户终端UE-5和用户终端UE-6的增强物理上行控制信道编号，其中，所述用户终端UE-2、所述用户终端UE-5和所述用户终端UE-6的所述增强物理上行控制信道编号分别为N，N+1和N+2。
可选地，根据为一组用户终端中每个用户终端分配的组内唯一编号在已指示的增强物理上行控制信道区域内确定与用户终端对应的增强物理上行控制信道编号包括：叠加组内唯一编号至增强物理上行控制信道的起始编号，得到与用户终端对应的增强物理上行控制信道编号，其中，起始编号为公共物理下行控制信道的下行控制信息DCI中指示的编号。
可选地，叠加组内唯一编号至增强物理上行控制信道的起始编号，得到与用户终端对应的增强物理上行控制信道编号包括：如果增强物理上行控制信道的起始编号为N，则与一组用户终端中用户终端UE-n对应的增强物理上行控制信道编号为N+n。
可选地，第六确定模块用于：当用户终端向多个下行子帧进行反馈时，根据多个下行子帧的下行调度授权DL grant的控制信道元素CCE位置确定等效CCE位置，并根据等效CCE位置确定增强物理上行控制信道编号。
可选地，在用户终端向多个下行子帧进行反馈之前，装置还包括：下行控制信息通过N-bit指示当前子帧的任一个下行子帧，判断用户终端在指示的任一个下行子帧中是否被调度；用户终端向多个下行子帧进行反馈包括：如果判断用户终端在指示的任一个下行子帧中被调度的情况下，用户终端向多个下行子帧进行反馈。
可选地，等效CCE位置为第一个控制信道元素CCE位置。
可选地，装置还包括第三指示单元，用于公共物理下行控制信道跨载波指示增强物理上行控制信道。
可选地，第三指示单元包括：通过在下行控制信息DCI中添加3比特或者大于3比特的载波指示域CIF实现公共物理下行控制信道跨载波指示增强物理上行控制信道。
可选地，下行控制信息DCI可以下任一种：为用于指示增强物理上行控制信道的下行控制信息DCI、为用于指示增强物理上行控制信道和非增强物理上行控制信道的下行控制信息DCI。
本实施例还提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储有计算机指令，所述计算机指令使所述计算机执行上述任一方法实施例所提供的方法。
本实施例还提供一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，计算机能够执行上述任一方法实施例所提供的方法。
图5是本实施例提供的执行信道的选择方法的电子设备的硬件结构示意图，如图5所示，该电子设备包括：
一个或多个处理器51以及存储器52，图5中以一个处理器51为例。
该电子设备还可以包括：输入装置53和输出装置54。
处理器51、存储器52、输入装置53和输出装置54可以通过总线或者其他方式连接，图5中以通过总线连接为例。
存储器52作为一种非暂态计算机可读存储介质，可用于存储非 暂态软件程序、非暂态计算机可执行程序以及模块，如本申请实施例中的信道的选择方法对应的程序指令/模块(例如，附图4所示的第一指示单元41和第二指示单元42)。处理器51通过运行存储在存储器52中的非暂态软件程序、指令以及模块，从而执行服务器的各种功能应用以及数据处理，即实现上述方法实施例中的信道的选择方法。
存储器52可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据信道的选择装置的使用所创建的数据等。此外，存储器52可以包括高速随机存取存储器，还可以包括非暂态存储器，例如至少一个磁盘存储器件、闪存器件、或其他非暂态固态存储器件。在一些实施例中，存储器52可选包括相对于处理器51远程设置的存储器，这些远程存储器可以通过网络连接至信道的选择装置。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置53可接收输入的数字或字符信息，以及产生与信道的选择装置的用户设置以及功能控制有关的键信号输入。输出装置54可包括显示屏等显示设备。
所述一个或者多个模块存储在所述存储器52中，当被所述一个或者多个处理器51执行时，执行上述任意方法实施例中的信道的选择方法。
上述产品可执行本申请实施例所提供的方法，具备执行方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本申请实施例所提供的方法。
本申请实施例的电子设备以多种形式存在，包括但不限于:
(1)移动通信设备:这类设备的特点是具备移动通信功能，并且以提供话音、数据通信为主要目标。这类终端包括:智能手机(例如iPhone)、多媒体手机、功能性手机，以及低端手机等。
(2)超移动个人计算机设备:这类设备属于个人计算机的范畴，有 计算和处理功能，一般也具备移动上网特性。这类终端包括:PDA、MID和UMPC设备等，例如iPad。
(3)便携式娱乐设备:这类设备可以显示和播放多媒体内容。该类设备包括:音频、视频播放器(例如iPod)，掌上游戏机，电子书，以及智能玩具和便携式车载导航设备。
(4)服务器:提供计算服务的设备，服务器的构成包括处理器、硬盘、内存、系统总线等，服务器和通用的计算机架构类似，但是由于需要提供高可靠的服务，因此在处理能力、稳定性、可靠性、安全性、可扩展性、可管理性等方面要求较高。
(5)其他具有数据交互功能的电子装置。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
在本申请的上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的技术内容，可通过其它的方式实现。其中，以上所描述的装置实施例仅仅是示意性的，例如单元的划分，可以为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，单元或模块的间接耦合或通信连接，可以是电性或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个单元上。可以根据实际需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本申请各个实施例方法的全部或部分步骤。而前述的存储介质包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
以上仅是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (13)

  1. 一种信道的选择方法，其特征在于，包括：
    基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置和频域资源位置；
    指示一组用户终端在已指示的所述增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的所述增强物理上行控制信道区域内传输增强物理上行控制信道。
  2. 根据权利要求1所述的方法，其特征在于，基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置包括：
    将发送公共物理下行控制信道的子帧后的第N个子帧作为所述增强物理上行控制信道区域的所在子帧，其中，所述公共物理下行控制信道区域的所在子帧为所述时域资源位置；或者
    将发送所述公共物理下行控制信道中承载的子帧后的第N个上行子帧作为所述增强物理上行控制信道区域的所在子帧，其中，所述公共物理下行控制信道区域的所在子帧为所述时域资源位置；或者
    获取所述公共物理下行控制信道中承载的下行控制信息DCI，并根据所述DCI指示所述增强物理上行控制信道区域的时域资源位置。
  3. 根据权利要求2所述的方法，其特征在于，所述N通过以下任一种方式进行配置：通过无线资源控制RRC配置、通过下行控制信息DCI来配置以及在标准中预先设定。
  4. 根据权利要求2所述的方法，其特征在于，根据所述DCI指示所述增强物理上行控制信道的时域资源位置包括：
    当所述用户终端在下行子帧N上检测到用于指示所述增强物理上行控制信道的所述公共物理下行控制信道时，将所述DCI中指示的所述公共物理下行控制信道所在的当前子帧后的N个子帧作为所述增强物理上行控制信道区域的所在子帧。
  5. 根据权利要求4所述的方法，其特征在于，根据所述DCI指示所述增强物理上行控制信道的时域资源位置包括：通过3比特表示范围为1至8的所述下行子帧N。
  6. 根据权利要求1所述的方法，其特征在于，基于公共物理下行控制信道指示增强物理上行控制信道区域的频域资源位置包括：
    根据无线资源控制RRC信令为所述增强物理上行控制信道配置所述频域资源位置；或者
    根据公共物理下行控制信道上承载的下行控制信息DCI指示所述增强物理上行控制信道区域的频域资源位置；或者
    根据所述公共物理下行控制信道占用的控制信道元素CCE位置确定所述增强物理上行控制信道区域的频域资源位置。
  7. 根据权利要求6所述的方法，其特征在于，根据无线资源控制RRC信令为所述增强物理上行控制信道配置所述频域资源位置包括：
    通过10比特的位图bitmap指示与所述增强物理上行控制信道对应的interlace，或者通过4比特指示所述增强物理上行控制信道占用10个交织单元interlace中的任意一个交织单元interlace。
  8. 根据权利要求6所述的方法，其特征在于，根据公共物理下行控制信道上承载的下行控制信息DCI指示所述增强物理上行控制信道的频域资源位置包括：
    通过10比特的位图bitmap指示与所述增强物理上行控制信道对应的交织单元interlace，或者，通过4比特指示所述增强物理上行控制信道占用10个interlace中的任意一个交织单元interlace。
  9. 根据权利要求6所述的方法，其特征在于，根据所述公共物理下行控制信道发送的控制信道元素CCE位置确定所述增强物理上行控制信道的频域资源位置包括：
    通过规定的映射表表示发送所述公共物理下行控制信道所占用的第I个控制信道元素CCE位置编号J和所述增强物理上行控制信道对应的交织单元interlace编号K的映射关系。
  10. 一种信道的选择装置，其特征在于，包括：
    第一指示单元，用于基于公共物理下行控制信道指示增强物理上行控制信道区域的时域资源位置和频域资源位置；
    第二指示单元，用于指示一组用户终端在已指示的所述增强物理上行控制信道区域内传输增强物理上行控制信道，其中，不同的用户终端在已指示的不同的所述增强物理上行控制信道区域内传输增强物理上行控制信道。
  11. 一种非暂态计算机可读存储介质，其特征在于，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行权利要求1-9任一项所述的方法。
  12. 一种计算机程序产品，其特征在于，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行权利要求1-9任一项所述的方法。
  13. 一种电子设备，其特征在于，包括：至少一个处理器；以及，与所述至少一个处理器通信连接的存储器；
    其中，所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被设置为用于执行上述权利要求1-9任一项所述的方法。
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