WO2016070383A1 - 控制信道的传输方法、装置以及通信系统 - Google Patents

控制信道的传输方法、装置以及通信系统 Download PDF

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Publication number
WO2016070383A1
WO2016070383A1 PCT/CN2014/090484 CN2014090484W WO2016070383A1 WO 2016070383 A1 WO2016070383 A1 WO 2016070383A1 CN 2014090484 W CN2014090484 W CN 2014090484W WO 2016070383 A1 WO2016070383 A1 WO 2016070383A1
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WIPO (PCT)
Prior art keywords
control channel
resources
resource
channel
terminal device
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PCT/CN2014/090484
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English (en)
French (fr)
Inventor
李宏超
张翼
周华
Original Assignee
富士通株式会社
李宏超
张翼
周华
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 富士通株式会社, 李宏超, 张翼, 周华 filed Critical 富士通株式会社
Priority to CN201480083035.4A priority Critical patent/CN107079319A/zh
Priority to EP14905531.1A priority patent/EP3217709A4/en
Priority to KR1020177014706A priority patent/KR20170080636A/ko
Priority to JP2017542226A priority patent/JP2017535222A/ja
Priority to PCT/CN2014/090484 priority patent/WO2016070383A1/zh
Publication of WO2016070383A1 publication Critical patent/WO2016070383A1/zh
Priority to US15/587,889 priority patent/US20170245273A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, an apparatus, and a communication system for transmitting a control channel.
  • MTC Machine Type Communication
  • An important feature of the MTC terminal is that it is likely to be installed in a room that is relatively isolated from the outside world, such as a basement, etc., resulting in a relatively large path loss of the wireless link from the MTC terminal to the base station. Increased path loss increases user coverage and signal reception performance. Therefore, ensuring the coverage performance of each uplink channel and downlink channel under the premise of keeping the MTC terminal low-cost is a problem to be solved.
  • the MTC terminal may only be equipped with a narrowband RF module, so that only wireless signals such as 1.4 MHz bandwidth can be received and transmitted. Therefore, the physical layer control channel of the existing (Rel. 8-12) LTE (Long Term Evolution) system cannot serve the MTC terminal on a carrier exceeding 1.4 MHz, or the narrowband MTC terminals cannot be in the broadband. Works on the carrier, whether it is receiving or transmitting.
  • LTE Long Term Evolution
  • the embodiments of the present invention provide a method, an apparatus, and a communication system for transmitting a control channel, so that a narrowband user can effectively work on a wideband carrier.
  • a method for transmitting a control channel wherein the method The law includes:
  • the terminal device determines a resource of the control channel
  • the terminal device detects the control channel on the determined resource of the control channel.
  • a method for transmitting a control channel includes:
  • the base station indicates resources of the control channel of the terminal device, so that the terminal device detects the control channel on resources of the control channel.
  • a transmission device for a control channel the device being applied to a terminal device, wherein the device comprises:
  • a determining unit that determines a resource of the control channel
  • a detecting unit that detects the control channel on a resource of the control channel determined by the determining unit.
  • a transmission device for a control channel the device being applied to a base station, wherein the device includes:
  • a first sending unit that transmits the control channel on a resource of a control channel
  • a detecting unit which indicates resources of the control channel of the terminal device, so that the terminal device detects the control channel on resources of the control channel.
  • a terminal device comprising the transmission device of the control channel according to the foregoing third aspect.
  • a base station comprising the transmission device of the control channel according to the foregoing fourth aspect.
  • a communication system includes a terminal device and a base station, wherein
  • the base station is configured to send the control channel on a resource of a control channel, and indicate a resource of the control channel of the terminal device;
  • the terminal device is configured to determine a resource of a control channel and detect the control channel on the determined resource of the control channel.
  • a computer readable program wherein when in a control channel, the program causes the computer to execute the transmission method of the control channel described in the foregoing first aspect in the transmission device or the terminal device of the control channel.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the aforementioned first aspect in a transmission device or a terminal device of a control channel Control channel transmission method.
  • a computer readable program wherein when the program is executed in a transmission device or a base station of a control channel, the program causes a computer to transmit or a base station on the control channel.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the control described in the foregoing second aspect in a transmission device or a base station of a control channel Channel transmission method.
  • An advantageous effect of embodiments of the present invention is that narrowband users can effectively operate on a wideband carrier by the method, apparatus and system of the embodiments of the present invention.
  • FIG. 1 is a flowchart of a method for transmitting a control channel according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for transmitting a control channel according to another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a retransmission operation on a control channel
  • FIG. 5 is a schematic structural diagram of a transmission apparatus of a control channel according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a transmission apparatus of a control channel according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an embodiment of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an embodiment of a base station according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • the physical layer control channel scheduled by the physical search channel of the common search space is scheduled by the physical layer control channel of the UE-specific search space.
  • Unicast channels do not need to be transmitted in the same subframe. Therefore, in the same subframe, the two do not need to receive at the same time for a certain user.
  • the CRC (Cyclic Redundancy Check) of the control channel of the common search space may be P-RNTI (Paging RNTI, Paging Radio Network Temporary Identity), SI-RNTI (System Information Radio Network Temporary Identity), RA- The RNTI (Radio Access Radio Network Temporary Identity) is scrambled for paging users, or broadcasting system messages, or transmitting random access responses.
  • P-RNTI Paging RNTI, Paging Radio Network Temporary Identity
  • SI-RNTI System Information Radio Network Temporary Identity
  • RA- The RNTI Radio Access Radio Network Temporary Identity
  • the CRC of the control channel of the user-specific search space may be C-RNTI (Cell Radio Network Temporary Identity), SPS C-RNTI (Semi-Persistent Scheduling Cell Radio Network Temporary Identity), TPC-PUCCH-RNTI (Transmission Power Control Physical Uplink Control) Temporary identification of channel radio network), TPC-PUSCH-RNTI (transmission power control physical uplink shared channel radio network temporary identifier), Temporary C-RNTI (temporary cell radio network temporary identifier) scrambling.
  • C-RNTI Cell Radio Network Temporary Identity
  • SPS C-RNTI Semi-Persistent Scheduling Cell Radio Network Temporary Identity
  • TPC-PUCCH-RNTI Transmission Power Control Physical Uplink Control
  • TPC-PUSCH-RNTI transmission power control physical uplink shared channel radio network temporary identifier
  • Temporary C-RNTI temporary cell radio network temporary identifier
  • the search space of the traditional control channel occupies the full bandwidth, so it is not available, and the control channel in the above search space needs to re-allocate the resource. And, in order to reduce the MTC For the power consumption of the terminal, it is also necessary to reduce the number of blind detections of the control channel at the receiving end, or only to perform blind detection of a specific control channel on certain resources.
  • an embodiment of the present invention provides a method, an apparatus, and a communication system for transmitting a control channel, so that a narrowband user can effectively work on a wideband carrier.
  • the method, apparatus and system of the present embodiment will be described in detail below with reference to the accompanying drawings.
  • FIG. 1 is a flowchart of the method. Referring to FIG. 1, the method includes:
  • Step 101 The terminal device determines resources of the control channel.
  • Step 102 The terminal device detects the control channel on the determined resource of the control channel.
  • the control channel refers to the control channel of the common search space and/or the control channel of the user-specific search space, that is, the terminal device can determine the resources of the control channel of the common search space in step 101, and can also determine the user-specific Searching for the resources of the control channel of the space, or simultaneously determining the resources of the control channel of the common search space and the resources of the control channel of the user-specific search space.
  • the terminal device may be a narrowband user or an MTC user.
  • the terminal device and the base station pre-agreed the resources of the control channel, for example, the terminal device and the base station pre-arranged which fixed subframes and/or fixed physical resource block pairs of the control channel are transmitted, and the base station may
  • the control channel is transmitted on these resources, and the terminal device can blindly detect or demodulate the control channel on these resources.
  • the terminal device can determine the resources of the control channel according to the agreement.
  • the control channel is demodulated only on a part of the pre-agreed resources.
  • the control channel of the unicast service is demodulated in the subframe corresponding to the user-specific search space
  • the control channel of the broadcast service is demodulated in the subframe corresponding to the common search space. Therefore, in any one subframe, the number of blind detection control channels of the user is reduced relative to the users of the previous version, thereby reducing the complexity and power consumption of the user.
  • the synchronization signal may be a primary synchronization signal (PSS, Primary Synchronization Signal), or a secondary synchronization signal (SSS, Secondary Synchronization Signal), or both;
  • the physical broadcast channel may be a conventional physical broadcast.
  • the channel (PBCH, Physical Broadcast CHannel) may also be a physical broadcast channel (MTC-PBCH) for the MTC user.
  • the foregoing control channel may be included in the physical broadcast channel.
  • the transmission method here may include whether to perform multiple retransmissions of the control channel, the number of retransmissions, and the like. Among them, by retransmission, the correct reception probability of the control channel of the user with partial coverage limitation can be improved.
  • the resource division here may include time domain resources, frequency domain resources, whether continuous transmission or continuous allocation of resources, and the like.
  • the base station and the terminal device may also pre-agreed resources of the data channel scheduled by the control channel, thereby reducing the complexity of demodulating the data channel of the terminal device and reducing Demodulation delay.
  • the terminal device detects the physical broadcast channel after detecting the synchronization signal, and then demodulates the control channel in the common search space to acquire system information and access the corresponding network, thereby enabling the narrowband user to be effective.
  • Working on a wideband carrier further, can save reception loss power.
  • the resources of the control channel are not pre-agreed, but are indicated by the base station over the physical broadcast channel.
  • the terminal device may demodulate the physical broadcast channel, and read information related to the control channel therefrom, and determine the control according to the information included in the physical broadcast channel. The resources of the channel.
  • the physical broadcast channel may include resource configuration information of the control channel and/or the number of retransmissions of the control channel and/or the number of retransmissions of the data channel scheduled by the control channel.
  • the terminal device can determine the resources of the control channel.
  • the terminal device may determine how many times the data channel scheduled by the control channel and/or the control channel is retransmitted, and the number of retransmissions may be one or more of 10 bits reserved in the physical broadcast channel.
  • the bits indicate, for example, that one bit of indication information is added to the existing physical broadcast channel to indicate the number of retransmissions of the common search space control channel and/or the number of retransmissions of its scheduled data channel, as shown in Table 1.
  • two-bit indication information is added to the existing physical broadcast channel to indicate the number of retransmissions of the common search space control channel and/or the number of retransmissions of its scheduled data channel, as shown in Table 2.
  • the terminal device can detect and receive the corresponding number of control channels according to the number of retransmissions of the control channel; and/or detect and receive the corresponding number of data channels according to the number of retransmissions of the data channel, thereby realizing energy accumulation and improving understanding. Adjust the correct rate and reduce the delay.
  • the resource configuration information of the control channel may include a resource division manner of the control channel, for example, continuous or discontinuous in the time domain, in the frequency domain.
  • the resources of the control channel of the common search space are the same as or overlap with the resources of the control channel of the user-specific search space.
  • the resource configuration information may also be indicated by a bit, as shown in Table 3 and FIG. 2.
  • the indication bit "00" corresponds to the resource division mode of (a) in FIG. 2
  • the indication bit “01” corresponds to the resource division mode of (b) in FIG. 2
  • the indication bit “10” corresponds to the resource of (c) in FIG.
  • the indication bit "11” corresponds to the resource division manner in (d) of FIG. 2.
  • the physical broadcast channel may also include information indicating a transmission start location and a retransmission number of resources of the control channel; and/or indicating the control channel. Information on the frequency domain location and number of retransmissions of the resource, or any combination of the above information.
  • the information contained in the physical broadcast channel can also be used for other purposes at the same time, and the embodiment is not limited thereto.
  • the physical broadcast channel may also indicate resources of a data channel scheduled by the control channel, thereby reducing the complexity of demodulating the data channel of the terminal device, and reducing Demodulation delay.
  • the meanings of the physical broadcast channel, the control channel, and the synchronization signal are the same as those of the previous embodiment, and are not described herein again.
  • the resources of the control channel are indicated by the physical broadcast channel, so that the narrowband user is enabled. It can also work effectively on broadband carriers and saves received loss of power.
  • the base station may indicate the resource of the control channel allocated to the user equipment by using a message in the random access procedure, where the base station may The resource indication information is added to the message to indicate the control channel resource allocated by the user equipment, and the terminal device may obtain the resource indication information from the base station in the random access procedure, and determine the control channel according to the resource indication information. Resources.
  • the message in the random access procedure may be a RAR (random access response) message or a Message 4 message.
  • the terminal device may allocate a semi-static control channel time-frequency domain resource in the RAR or Message4; then the terminal device is in the corresponding resource. Go up blind detection and demodulate the control channel.
  • Message4 can be in the contention resolution step, or it can be the fourth step of random access or the last step of random access.
  • the resource indication information may include resources of the foregoing control channel and/or transmission modes of the control channel.
  • the transmission mode herein may include the number of retransmissions of the control channel, and may also include other information.
  • the indication manner of the number of retransmissions may be the same as or different from the foregoing embodiment.
  • the resources of the control channel of the common search space and the resources of the control channel of the user-specific search space may be separated in the time domain, but this embodiment is not limited thereto.
  • the narrowband user can effectively work on the wideband carrier and achieve the purpose of saving reception loss power.
  • the low-cost MTC terminal is not capable of simultaneously receiving the broadcast data of the control channel scheduling of the common search space and the unicast data of the UE-specific search space control channel scheduling, the two-part resource is time-division-multiple-addressed, which is advantageous. UE demodulation complexity and power consumption reduction.
  • the embodiment of the present invention further provides a method for transmitting a control channel, which is a process on the base station side corresponding to the method of Embodiment 1, wherein the same content as Embodiment 1 is not repeated.
  • 3 is a flow chart of the method. Referring to FIG. 3, the method includes:
  • Step 301 The base station sends the control channel on a resource of a control channel.
  • Step 302 The base station indicates resources of the control channel of the terminal device, so that the terminal device detects the control channel on resources of the control channel.
  • the base station may indicate the location according to the agreement with the terminal device.
  • the resources of the control channel of the terminal device may also send the indication information of the transmission mode and/or the resource division of the control channel through the physical broadcast channel to increase flexibility.
  • the base station may indicate resources of the control channel by using a physical broadcast channel.
  • the physical broadcast channel may include resource configuration information of the control channel and/or the number of retransmissions of the control channel and/or the number of retransmissions of the data channel scheduled by the control channel. Therefore, the terminal device can determine the resource of the control channel according to the resource configuration information, and detect and receive the control channel according to the number of retransmissions of the control channel, and/or the data channel according to the number of retransmissions of the data channel. The corresponding number of detections are received.
  • the base station can simultaneously use cross-subframe scheduling and the same subframe scheduling, thereby simultaneously satisfying both restricted and unrestricted users.
  • the base station can simultaneously use cross-subframe scheduling and the same subframe scheduling, thereby simultaneously satisfying both restricted and unrestricted users.
  • all users need to receive, then the same as the unicast channel, the number of transmissions can be adjusted according to the channel condition or coverage of each receiving user. Therefore, combining the two can reduce the latency of non-interfering restricted users (using the same subframe scheduling), and can also take care of the interference-limited users using cross-subframe scheduling and repeated transmission.
  • 4 is a schematic diagram of a base station simultaneously using cross-subframe scheduling and same subframe scheduling.
  • the base station may further indicate, by using the physical broadcast channel, a resource division manner of the control channel, such as whether it is dispersed or continuous in the time domain, whether it is the same or overlapping in the frequency domain, and the like.
  • the physical broadcast channel may further indicate a transmission start location and a number of retransmissions of resources of the foregoing control channel.
  • the physical broadcast channel may also indicate a frequency domain location and a number of retransmissions of resources of the foregoing control channel.
  • the base station may indicate resources of the control channel by using a message in a random access procedure. For example, a RAR message or a Message 4 message.
  • the foregoing message may further indicate a transmission manner of the foregoing control channel, such as a number of retransmissions.
  • the narrowband user can effectively work on the broadband carrier and achieve the purpose of saving the receiving loss power. Moreover, since the resources of the control channel of the common search space and the resources of the control channel of the user-specific search space are separated in the time domain, the UE demodulation complexity and power consumption are reduced.
  • the embodiment of the invention provides a transmission device for a control channel, which can be applied to a terminal device, such as an MTC terminal or other narrowband users. Since the principle of solving the problem is similar to the method of the first embodiment, the specific implementation can refer to the implementation of the method of the first embodiment, and the details are not repeated.
  • FIG. 5 is a schematic diagram of the composition of the device.
  • the transmission device 500 of the control channel includes: The unit 501 and the detecting unit 502.
  • the determining unit 501 is configured to determine resources of the control channel.
  • the control channel here may be a control channel of a common search space or a control channel of a user-specific search space.
  • the detecting unit 502 is configured to detect the control channel on the resource of the control channel determined by the determining unit 501.
  • the determining unit 501 may include:
  • a first determining unit 5011 after the terminal device detects the synchronization signal and the physical broadcast channel, according to a fixed subframe and/or a fixed physical resource block pair of the transmission control channel that is pre-agreed by the terminal device and the base station.
  • the resources of the control channel are pre-agreed by the terminal device and the base station.
  • the resources of the control channel are pre-agreed by the terminal device and the base station, and the first determining unit 501 can directly determine the resources of the control channel according to the agreement, whereby the detecting unit 502 can directly detect on the agreed resources.
  • the control channel is pre-agreed by the terminal device and the base station, and the first determining unit 501 can directly determine the resources of the control channel according to the agreement, whereby the detecting unit 502 can directly detect on the agreed resources.
  • the physical broadcast channel may include: a transmission mode of the control channel and/or indication information of resource division. As mentioned before, the flexibility of the configuration can be improved.
  • the determining unit 501 may include:
  • the second determining unit 5012 determines, after the terminal device detects the synchronization signal and the physical broadcast channel, the resource of the control channel according to the information included in the physical broadcast channel.
  • the base station indicates the resource of the control channel through the physical broadcast channel
  • the second determining unit 5012 may determine the resource of the control channel according to the indication of the physical broadcast channel, whereby the detecting unit 502 may be indicated by the physical broadcast channel.
  • the control channel is detected on the resources of the control channel.
  • the physical broadcast channel may include resource configuration information of the control channel and/or a number of retransmissions of the control channel; and/or a number of retransmissions of the data channel scheduled by the control channel. Therefore, the determining unit 501 can determine the resource of the control channel according to the resource configuration information, and the detecting unit 502 can detect and receive the control channel according to the number of retransmissions of the control channel; and/or detect and receive according to the number of retransmission times of the data channel. Data channel. Thereby, the correctness of demodulation can be improved by energy accumulation, and the delay can be reduced.
  • the physical broadcast channel may further include a location of a resource of the foregoing control channel in a time domain and a frequency domain; and/or a transmission start location and a number of retransmissions of resources of the control channel; and/or resources of the control channel. Frequency domain location and number of retransmissions.
  • the determining unit 501 may include: an obtaining unit 5013 and a third determining unit 5014, wherein the acquiring unit 5013 may obtain the resource indication information of the control channel from the base station in the random access process, and the third determining unit 5014 may determine, according to the resource indication information, the control channel. Resources.
  • the base station indicates a resource of the control channel, such as a RAR message or a Message4 message, by using a message in the random access procedure, whereby the obtaining unit 5013 and the third determining unit 5014 can obtain the control channel from the message.
  • the resource, detection unit 502 can detect the control channel on the resources of the control channel indicated by the message.
  • the resource indication information may include resources of the control channel, and may also include a transmission mode of the control channel, for example, a number of retransmissions of the control channel.
  • the narrowband user can effectively operate on the wideband carrier and achieve the purpose of saving reception loss power.
  • the embodiment of the present invention provides a transmission device for a control channel, and the device can be applied to a base station.
  • the principle of solving the problem is similar to the method of the second embodiment. Therefore, the specific implementation may refer to the implementation of the method of the second embodiment. The content is the same and will not be repeated.
  • FIG. 6 is a schematic diagram of the composition of the device.
  • the transmission device 600 of the control channel includes: a first sending unit 601 and an indicating unit 602.
  • the first sending unit 601 can send the control channel on a resource of a control channel.
  • the control channel here may be a control channel of a common search space or a control channel of a user-specific search space.
  • the indication unit 602 can indicate the resource of the control channel of the terminal device, so that the terminal device detects the control channel on the resource of the control channel.
  • the resources of the foregoing control channel are pre-agreed by the terminal device and the base station, and the indication unit 602 includes:
  • the first indication unit 6021 indicates, according to the agreement between the base station and the terminal device, the resource of the control channel of the terminal device.
  • the base station may further indicate a transmission mode and/or a resource division of the control channel by using a physical broadcast channel, where the apparatus 600 further includes:
  • a second sending unit 603 which passes the indication information of the transmission mode and/or resource division of the control channel
  • the physical broadcast channel is sent out.
  • the resource of the foregoing control channel is indicated by a physical broadcast channel, and the indicating unit 602 includes:
  • the second indication unit 6022 indicates the resources of the control channel through information included in the physical broadcast channel.
  • the physical broadcast channel includes resource configuration information of the control channel and/or the number of retransmissions of the control channel; and/or the number of retransmissions of the data channel scheduled by the control channel, thereby, the terminal device can
  • the resource configuration information determines a resource of the control channel, detects receiving the control channel according to the number of retransmissions of the control channel, and/or detects receiving the data channel according to the number of retransmissions of the data channel.
  • the information included in the physical broadcast channel may further include: a location of a resource of the control channel in a time domain and a frequency domain; and/or a transmission start location of the resource of the control channel and a number of retransmissions; and / or the frequency domain location and number of retransmissions of the resources of the control channel.
  • the resource of the foregoing control channel is indicated by a message in a random access procedure, and the indication unit 602 includes:
  • the third indication unit 6023 indicates, by the resource indication information included in the message in the random access procedure, the resource of the control channel of the terminal device.
  • the message in the random access procedure may be a RAR message or a Message4 message.
  • the resource indication information may include: the resource of the control channel, and optionally, the transmission mode of the control channel, for example, the number of retransmissions, and the like.
  • the first sending unit 601 may perform multiple retransmissions on the control channel by using cross-subframe scheduling and same subframe scheduling.
  • the narrowband user can effectively work on the wideband carrier and achieve the purpose of saving reception loss power.
  • the embodiment of the present invention further provides a terminal device, where the terminal device includes the transmission device of the control channel described in Embodiment 3.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 700 can include a central processor 701 and a memory 702; the memory 702 is coupled to the central processor 701. It is worth noting that the figure is exemplary; other types of structures can be used to supplement or replace the structure. Now telecommunications or other features.
  • the function of the transmission device of the control channel may be integrated into the central processing unit 701, and the central processing unit 701 implements the function of the transmission device of the control channel described in Embodiment 3, wherein the transmission device for the control channel
  • the central processing unit 701 implements the function of the transmission device of the control channel described in Embodiment 3, wherein the transmission device for the control channel
  • the transmission device of the control channel may be configured separately from the central processing unit 701.
  • the transmission device of the control channel may be configured as a chip connected to the central processing unit 701, and the positioning is implemented by the control of the central processing unit 701. The function of the device.
  • the terminal device 700 may further include: a communication module 703, an input unit 704, an audio processing unit 705, a display 706, and a power source 707. It should be noted that the terminal device 700 does not have to include all the components shown in FIG. 7; in addition, the user device 700 may further include components not shown in FIG. 7, and reference may be made to the prior art.
  • central processor 701 may include a microprocessor or other processor device and/or logic device that receives input and controls various aspects of user device 700. The operation of the part.
  • the memory 702 can be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable device.
  • the above configuration-related information can be stored, and a program for executing the related information can be stored.
  • the central processing unit 701 can execute the program stored in the memory 702 to implement information storage or processing and the like.
  • the functions of other components are similar to those of the existing ones and will not be described here.
  • the various components of user device 700 may be implemented by special purpose hardware, firmware, software, or a combination thereof without departing from the scope of the invention.
  • the narrowband user can effectively work on the wideband carrier and achieve the purpose of saving reception loss power.
  • the embodiment of the present invention further provides a base station, where the base station includes the transmission device of the control channel described in Embodiment 4.
  • FIG. 8 is a schematic diagram of a structure of a base station according to an embodiment of the present invention.
  • base station 800 can include a central processing unit (CPU) 801 and memory 802; and memory 802 is coupled to central processing unit 801.
  • the memory 802 can store various data; in addition, a program for information processing is stored, and the program is executed under the control of the central processing unit 801 to receive various information transmitted by the terminal device, and send various letters to the terminal device. interest.
  • the function of the transmission device of the control channel may be integrated into the central processing unit 801, and the central processing unit 801 implements the function of the transmission device of the control channel described in Embodiment 4, wherein the transmission device for the control channel
  • the central processing unit 801 implements the function of the transmission device of the control channel described in Embodiment 4, wherein the transmission device for the control channel
  • the transmission device of the control channel may be configured separately from the central processing unit 801.
  • the transmission device of the control channel may be configured as a chip connected to the central processing unit 801, and controlled by the control of the central processing unit 801. The function of the transmission device of the channel.
  • the base station 800 may further include: a transceiver 803, an antenna 804, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It is to be noted that the base station 800 does not have to include all of the components shown in FIG. 8; in addition, the base station 800 may also include components not shown in FIG. 8, and reference may be made to the prior art.
  • the narrowband user can effectively work on the wideband carrier and achieve the purpose of saving reception loss power.
  • FIG. 9 is a schematic diagram of a topology structure of the communication system.
  • the communication system 900 includes: a terminal device 901 and a base station 902.
  • the base station 902 is configured to send the control channel on a resource of a control channel, and instruct the terminal device 901 to use the resource of the control channel;
  • the terminal device 901 is configured to determine a resource of the control channel and detect the control channel on the determined resource of the control channel.
  • the terminal device 901 can apply the transmission method of the control channel described in Embodiment 1, that is, implement the function of the transmission device of the control channel described in Embodiment 3, and the contents of Embodiment 1 and Embodiment 3 This is incorporated herein and will not be repeated here.
  • the base station 902 can apply the transmission method of the control channel described in Embodiment 2, that is, implement the function of the transmission device of the control channel described in Embodiment 4, and the contents of Embodiment 2 and Embodiment 4 are This is incorporated herein and will not be repeated here.
  • the narrowband user can effectively operate on the wideband carrier and achieve the purpose of saving reception loss power.
  • the embodiment of the invention further provides a computer readable program, wherein when the transmission device or the terminal is on the control channel When the program is executed in the device, the program causes the computer to execute the transmission method of the control channel described in Embodiment 1 in the transmission device or the terminal device of the control channel.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the transmission method of the control channel described in Embodiment 1 in a transmission device or a terminal device of a control channel.
  • Embodiments of the present invention also provide a computer readable program, wherein when the program is executed in a transmission device or a base station of a control channel, the program causes a computer to execute Embodiment 2 in a transmission device or a base station of the control channel The transmission method of the control channel.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to execute the transmission method of the control channel described in Embodiment 2 in a transmission device or a base station of a control channel.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

Abstract

本发明实施例提供一种控制信道的传输方法、装置以及通信系统，其中，所述通信系统包括终端设备和基站，其中，所述基站被配置为在控制信道的资源上发送所述控制信道，并指示终端设备所述控制信道的资源；所述终端设备被配置为确定控制信道的资源，并在确定的所述控制信道的资源上检测所述控制信道。通过本发明实施例，窄带用户能够有效的在宽带载波上工作。

Description

控制信道的传输方法、装置以及通信系统 技术领域
本发明涉及通信领域，特别涉及一种控制信道的传输方法、装置以及通信系统。
背景技术
MTC(Machine Type Communication，机器类型通信)是一种对于运营商的收入和服务很重要的技术，可以使用低成本的大量固定终端，通过机器之间的自主通信，来提供各种应用服务，例如水表、电表、气表等的读数上报，安全监测和公共安全等。
随着蜂窝网络系统提供的应用和服务的增加，用户数和具有蜂窝通信模块的终端数量也会增加，MTC用户的数目和各种读数表和监测系统联系紧密，就是很典型的例子。系统全部的资源对于服务提供将会是极其重要的，有可能会降低分配效率。
MTC终端的一个重要的特征是有可能被安装在与外界的隔离度比较大的室内，例如地下室等，从而导致从MTC终端到基站的无线链路的路径损耗比较大。路径损耗的加大，增加了用户的覆盖难度和信号接收性能。所以在保持MTC终端低成本的前提下，保证各个上行信道和下行信道的覆盖性能，是一个需要解决的问题。
目前，通常使用多次重复发送获得能量的累计增益，增加传输正确概率。然而，为了降低成本，MTC终端可能只会配备窄带的射频模块，从而只能接收和发送例如1.4MHz带宽的无线信号。所以现有的(Rel.8-12)LTE(Long Term Evolution，长期演进)系统下的物理层控制信道在超过1.4MHz的载波上无法为MTC终端服务，或者说这些窄带MTC终端无法在宽带的载波上工作，无论是接收还是发送。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
为了解决上述背景技术所指出的问题，本发明实施例提供一种控制信道的传输方法、装置以及通信系统，以便窄带用户能够有效的在宽带载波上工作。
根据本发明实施例的第一方面，提供了一种控制信道的传输方法，其中，所述方 法包括：
终端设备确定控制信道的资源；
所述终端设备在确定的所述控制信道的资源上检测所述控制信道。
根据本发明实施例的第二方面，提供了一种控制信道的传输方法，其中，所述方法包括：
基站在控制信道的资源上发送所述控制信道；
所述基站指示终端设备所述控制信道的资源，以便所述终端设备在所述控制信道的资源上检测所述控制信道。
根据本发明实施例的第三方面，提供了一种控制信道的传输装置，该装置应用于终端设备，其中，所述装置包括：
确定单元，其确定控制信道的资源；
检测单元，其在所述确定单元所确定的所述控制信道的资源上检测所述控制信道。
根据本发明实施例的第四方面，提供了一种控制信道的传输装置，该装置应用于基站，其中，所述装置包括：
第一发送单元，其在控制信道的资源上发送所述控制信道；
检测单元，其指示终端设备所述控制信道的资源，以便所述终端设备在所述控制信道的资源上检测所述控制信道。
根据本发明实施例的第五方面，提供了一种终端设备，所述终端设备包括前述第三方面所述的控制信道的传输装置。
根据本发明实施例的第六方面，提供了一种基站，所述基站包括前述第四方面所述的控制信道的传输装置。
根据本发明实施例的第七方面，提供了一种通信系统，其中，所述通信系统包括终端设备和基站，其中，
所述基站被配置为在控制信道的资源上发送所述控制信道，并指示终端设备所述控制信道的资源；
所述终端设备被配置为确定控制信道的资源，并在确定的所述控制信道的资源上检测所述控制信道。
根据本发明实施例的其它方面，提供了一种计算机可读程序，其中当在控制信道 的传输装置或终端设备中执行所述程序时，所述程序使得计算机在所述控制信道的传输装置或终端设备中执行前述第一方面所述的控制信道的传输方法。
根据本发明实施例的其它方面，提供了一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在控制信道的传输装置或终端设备中执行前述第一方面所述的控制信道的传输方法。
根据本发明实施例的其它方面，提供了一种计算机可读程序，其中当在控制信道的传输装置或基站中执行所述程序时，所述程序使得计算机在所述控制信道的传输装置或基站中执行前述第二方面所述的控制信道的传输方法。
根据本发明实施例的其它方面，提供了一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在控制信道的传输装置或基站中执行前述第二方面所述的控制信道的传输方法。
本发明实施例的有益效果在于：通过本发明实施例的方法、装置和系统，窄带用户能够有效的在宽带载波上工作。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
所包括的附图用来提供对本发明实施例的进一步的理解，其构成了说明书的一部分，用于例示本发明的实施方式，并与文字描述一起来阐释本发明的原理。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本发明实施例的一个实施方式的控制信道的传输方法的流程图；
图2是本实施例的资源划分示意图；
图3是本发明实施例的另一个实施方式的控制信道的传输方法的流程图；
图4是对控制信道进行重传操作的示意图；
图5是本发明实施例的一个实施方式的控制信道的传输装置的组成示意图；
图6是本发明实施例的另一个实施方式的控制信道的传输装置的组成示意图；
图7是本发明实施例的终端设备的一个实施方式的组成示意图；
图8是本发明实施例的基站的一个实施方式的组成示意图；
图9是本发明实施例的通信系统的结构示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。下面结合附图对本发明的各种实施方式进行说明。这些实施方式只是示例性的，不是对本发明的限制。
为了减小缓存的尺寸和基带的处理压力，公共搜索空间(common search space)的物理层控制信道所调度的广播信道和用户专用搜索空间(UE-specific search space)的物理层控制信道所调度的单播信道不需要在同一子帧内传输。所以二者在同一子帧里面对于某一个用户来说不需要同时接收。
公共搜索空间的控制信道的CRC(Cyclic Redundancy Check，循环冗余校验)可以被P-RNTI(Paging RNTI，寻呼无线网络临时标识)，SI-RNTI(系统信息无线网络临时标识)，RA-RNTI(随机接入无线网络临时标识)加扰，用于寻呼用户，或者广播系统消息，或者传输随机接入响应。
用户专用搜索空间的控制信道的CRC可以被C-RNTI(小区无线网络临时标识)，SPS C-RNTI(半静态性调度小区无线网络临时标识)，TPC-PUCCH-RNTI(发射功率控制物理上行控制信道无线网络临时标识)，TPC-PUSCH-RNTI(发射功率控制物理上行共享信道无线网络临时标识)，Temporary C-RNTI(临时小区无线网络临时标识)加扰。
因为对于窄带的MTC终端，传统的控制信道的搜索空间都是占用全带宽，所以不可用，上述的搜索空间中的控制信道需要重新进行资源分配。并且，为了减小MTC 终端的功耗，也有必要减小接收端的控制信道的盲检次数，或者只需要在某些资源上进行特定控制信道的盲检。
基于以上研究，本发明实施例提供了一种控制信道的传输方法、装置以及通信系统，以使得窄带用户能够有效的在宽带载波上工作。以下结合附图对本实施例的方法、装置和系统进行详细说明。
实施例1
本发明实施例提供了一种控制信道的传输方法，图1是该方法的流程图，请参照图1，该方法包括：
步骤101：终端设备确定控制信道的资源；
步骤102：所述终端设备在确定的所述控制信道的资源上检测所述控制信道。
在步骤101中，控制信道是指公共搜索空间的控制信道和/或用户专用搜索空间的控制信道，也即，终端设备在步骤101可以确定公共搜索空间的控制信道的资源，也可以确定用户专用搜索空间的控制信道的资源，或者同时确定公共搜索空间的控制信道的资源和用户专用搜索空间的控制信道的资源。其中，终端设备可以是窄带用户，也可以是MTC用户。
在步骤101的一个实施方式中，终端设备和基站预先约定了控制信道的资源，例如终端设备和基站预先约定了控制信道在哪些固定的子帧和/或固定的物理资源块对传输，基站可以在这些资源上发送控制信道，终端设备可以在这些资源上盲检或者解调控制信道。终端设备可以根据该约定确定该控制信道的资源。
在本实施方式中，终端设备解调完同步信号和物理广播信道之后，只在部分预先约定的资源上进行控制信道的解调。并且在接入网络之后，在用户专用搜索空间对应的子帧进行单播业务的控制信道的解调，在公共搜索空间对应的子帧进行广播业务的控制信道的解调。由此，在任何一个子帧，用户盲检测控制信道的数量相对于之前版本的用户都会降低，起到了降低用户复杂度和能耗的目的。
在本实施方式中，同步信号可以是主同步信号(PSS，Primary Synchronization Signal)，也可以是辅助同步信号(SSS，Secondary Synchronization Signal)，或者两者都有；物理广播信道可以是传统的物理广播信道(PBCH，Physical Broadcast CHannel)，也可以是针对MTC用户的物理广播信道(MTC-PBCH)。
在本实施方式中，为了增加灵活性，上述物理广播信道中可以包含上述控制信道 的传输方式和/或资源划分的指示信息。这里的传输方式可以包括是否进行控制信道的多次重传、重传次数等。其中，通过重传，可以提升部分覆盖受限的用户的控制信道的正确接收概率。这里的资源划分可以包括时域资源、频域资源，是否是连续传输或者资源是否连续分配等。
在本实施方式中，除了上述控制信道的资源以外，基站和终端设备还可以预先约定由该控制信道调度的数据信道的资源，由此可以降低终端设备解调数据信道的复杂度，并减小解调时延。
通过本实施方式的方法，终端设备在检测到同步信号后再去检测物理广播信道，然后在公共搜索空间解调控制信道从而获取系统信息，接入对应的网络，由此，使得窄带用户能够有效的在宽带载波上工作，进一步的，可以节省接收损耗电能。
在步骤101的另一个实施方式中，与前一实施方式不同的是，控制信道的资源不是预先约定的，而是由基站通过物理广播信道指示的。在本实施方式中，终端设备在检测到同步信号后，可以由此解调物理广播信道，并从中读出与控制信道相关的信息，根据该物理广播信道中所包含的该信息，确定上述控制信道的资源。
在本实施方式中，物理广播信道中可以包含上述控制信道的资源配置信息和/或上述控制信道的重传次数和/或上述控制信道所调度的数据信道的重传次数。根据上述资源配置信息，终端设备可以确定控制信道的资源。根据上述重传次数，终端设备可以确定上述控制信道和/或该控制信道所调度的数据信道重传了多少次，该重传次数可以通过物理广播信道中预留的10比特中的一个或多个比特来指示，例如，在现有的物理广播信道中增加1比特的指示信息，来指示公共搜索空间控制信道的重传次数和/或其调度的数据信道的重传次数，如表1所示；再例如，在现有的物理广播信道中增加2比特的指示信息，来指示公共搜索空间控制信道的重传次数和/或其调度的数据信道的重传次数，如表2所示。
Figure PCTCN2014090484-appb-000001
表1
Figure PCTCN2014090484-appb-000002
Figure PCTCN2014090484-appb-000003
表2
由此，终端设备可以根据该控制信道的重传次数检测接收相应次数的上述控制信道；和/或根据该数据信道的重传次数检测接收相应次数的上述数据信道，实现了能量累积，提高了解调的正确率，并降低了时延。
在本实施方式中，为了能够让窄带用户适应宽带载波和网络侧的部署，上述控制信道的资源配置信息可以包含上述控制信道的资源划分方式，例如，时域上连续或者是非连续，频域上公共搜索空间的控制信道的资源和用户专用搜索空间的控制信道的资源相同或者重叠。其中，该资源配置信息也可以通过比特来指示，如表3和图2所示。
Figure PCTCN2014090484-appb-000004
表3
其中，指示比特“00”对应图2中(a)的资源划分方式，指示比特“01”对应图2中(b)的资源划分方式，指示比特“10”对应图2中(c)的资源划分方式，指示比特“11”对应图2中(d)的资源划分方式。
在本实施方式中，上述配置方式只是举例说明，可选的，该物理广播信道中也可以包含指示上述控制信道的资源的传输起点位置和重传次数的信息；和/或指示上述控制信道的资源的频域位置和重传次数的信息，或者包含上述信息的任意组合。此外，该物理广播信道中所包含的信息也可以同时用于其它目的，本实施例并不以此作为限制。
在本实施方式中，除了上述控制信道的资源以外，该物理广播信道还可以指示由该控制信道所调度的数据信道的资源，由此可以降低终端设备解调数据信道的复杂度，并减小解调时延。
在本实施方式中，物理广播信道、控制信道、同步信号的含义与前一实施方式相同，此处不再赘述。
通过本实施方式的方法，通过物理广播信道指示控制信道的资源，使得窄带用户 也能有效的在宽带载波上工作，并且节省了接收损耗电能。
在步骤101的另一个实施方式中，为了能够让窄带用户适应宽带载波和网络侧的部署，基站可以通过随机接入过程中的消息指示为用户设备分配的控制信道的资源，其中，基站可以在上述消息中增加资源指示信息以指示用户设备为其分配的控制信道资源，由此，终端设备可以在随机接入过程中从基站获得上述资源指示信息，并根据该资源指示信息确定上述控制信道的资源。
其中，上述随机接入过程中的消息可以是RAR(random access response，随机接入相应)消息，也可以是Message 4消息。终端设备在随机接入过程中发送完前导码之后，基站侧如果解调成功，则可以在RAR中或者Message4中为终端设备分配半静态的控制信道时频域资源；然后终端设备在对应的资源上去盲检和解调控制信道。
其中，Message4可以是在竞争解决步骤，也可以是在随机接入第四步或者随机接入的最后一步。
其中，上述资源指示信息可以包括上述控制信道的资源和/或上述控制信道的传输方式。其中，这里的传输方式可以包括该控制信道的重传次数，还可以包括其它信息。重传次数的指示方式可以与前述实施方式相同，也可以不同。
在本实施例中，公共搜索空间的控制信道的资源和用户专用搜索空间的控制信道的资源在时域上可以分开，但本实施例并不以此作为限制。
通过本实施例的方法，窄带用户能够有效的在宽带载波上工作，并且达到节省接收损耗电能的目的。并且，由于低成本的MTC终端是不能够同时接收common search space的控制信道调度的广播数据和UE-specific search space控制信道调度的单播数据，所以将两部分的资源进行时分多址，有利于UE解调复杂度和能耗的降低。
实施例2
本发明实施例还提供了一种控制信道的传输方法，该方法是与实施例1的方法对应的基站侧的处理，其中，与实施例1相同的内容不再重复。图3是该方法的流程图，请参照图3，该方法包括：
步骤301：基站在控制信道的资源上发送所述控制信道；
步骤302：所述基站指示终端设备所述控制信道的资源，以便所述终端设备在所述控制信道的资源上检测所述控制信道。
其中，对应实施例1的第一个实施方式，基站可以根据与终端设备的约定指示所 述终端设备所述控制信道的资源。此外，该基站还可以将该控制信道的传输方式和/或资源划分的指示信息通过物理广播信道发送出去，以增加灵活性。
其中，对应实施例1的第二个实施方式，基站可以通过物理广播信道指示所述控制信道的资源。其中，该物理广播信道可以包含该控制信道的资源配置信息和/或该控制信道的重传次数和/或该控制信道所调度的数据信道的重传次数。由此，终端设备可以根据该资源配置信息确定控制信道的资源，并根据该控制信道的重传次数对控制信道进行相应次数的检测接收，和/或根据该数据信道的重传次数对数据信道进行相应次数的检测接收。
其中，在对控制信道进行多次重传的操作时，基站可以同时使用跨子帧调度和同子帧调度，由此可以同时满足覆盖受限和非受限的用户。尤其是对于公共的广播信道来说，所有用户都需要去接收，那么就无法和单播信道一样，根据每一个接收用户的信道情况或者是覆盖情况调整传输次数。所以将两者结合既可以减小非干扰受限用户的latency(使用同子帧调度)，也可以照顾到干扰受限用户使用跨子帧调度和重复传输。图4为基站同时使用跨子帧调度和同子帧调度的示意图。
其中，基站还可以通过该物理广播信道指示上述控制信道的资源划分方式，例如在时域上是分散的还是连续的，在频域上是相同的还是重叠的，等等。可选的，该物理广播信道还可以指示上述控制信道的资源的传输起点位置和重传次数。可选的，该物理广播信道还可以指示上述控制信道的资源的频域位置和重传次数。
其中，对应实施例1的第三个实施方式，基站可以通过随机接入过程中的消息指示所述控制信道的资源。例如，RAR消息或者Message 4消息。可选的，上述消息还可以指示上述控制信道的传输方式，例如重传次数等。
通过本实施例的方法，使得窄带用户能够有效的在宽带载波上工作，并且达到节省接收损耗电能的目的。并且，由于公共搜索空间的控制信道的资源和用户专用搜索空间的控制信道的资源在时域上分开，有利于UE解调复杂度和能耗的降低。
实施例3
本发明实施例提供了一种控制信道的传输装置，该装置可以应用于终端设备，例如MTC终端或者是其它窄带用户。由于该装置解决问题的原理与实施例1的方法类似，因此其具体的实施可以参照实施例1的方法的实施，内容相同之处不再重复说明。
图5是该装置的组成示意图，请参照图5，该控制信道的传输装置500包括：确 定单元501和检测单元502。
在本实施例中，确定单元501用于确定控制信道的资源。这里的控制信道可以是公共搜索空间的控制信道，也可以是用户专用搜索空间的控制信道。
在本实施例中，检测单元502用于在确定单元501所确定的控制信道的资源上检测该控制信道。
在一个实施方式中，如图5所示，确定单元501可以包括：
第一确定单元5011，其在所述终端设备检测到同步信号和物理广播信道后，根据所述终端设备与基站预先约定的发送控制信道的固定的子帧和/或固定的物理资源块对确定所述控制信道的资源。
在该实施方式中，控制信道的资源是终端设备和基站预先约定的，第一确定单元501根据该约定可以直接确定该控制信道的资源，由此，检测单元502可以直接在约定的资源上检测该控制信道。
其中，该物理广播信道中可以包含：上述控制信道的传输方式和/或资源划分的指示信息。如前所述，由此可以提高配置的灵活性。
在另一个实施方式中，如图5所述，确定单元501可以包括：
第二确定单元5012，其在所述终端设备检测到同步信号和物理广播信道后，根据所述物理广播信道中所包含的信息，确定所述控制信道的资源。
在本实施方式中，基站通过物理广播信道指示控制信道的资源，第二确定单元5012根据物理广播信道的指示可以确定该控制信道的资源，由此，检测单元502可以在物理广播信道所指示的控制信道的资源上检测该控制信道。
其中，该物理广播信道可以包含上述控制信道的资源配置信息和/或所述控制信道的重传次数；和/或所述控制信道所调度的数据信道的重传次数。由此，确定单元501可以根据该资源配置信息确定控制信道的资源，检测单元502可以根据该控制信道的重传次数检测接收上述控制信道；和/或根据该数据信道的重传次数检测接收上述数据信道。由此，通过能量累积可以提高解调的正确性，并减少延时。
其中，该物理广播信道还可以包含上述控制信道的资源在时域和频域上的位置；和/或上述控制信道的资源的传输起点位置和重传次数；和/或上述控制信道的资源的频域位置和重传次数。
在另一个实施方式中，如图5所示，确定单元501可以包括：获取单元5013和 第三确定单元5014，其中，获取单元5013可以在所述终端设备在随机接入过程中从基站获得上述控制信道的资源指示信息；第三确定单元5014可以根据上述资源指示信息确定上述控制信道的资源。
在本实施方式中，基站通过随机接入过程中的消息指示控制信道的资源，例如RAR消息或者Message4消息，由此，获取单元5013和第三确定单元5014可以从该消息中获得上述控制信道的资源，检测单元502可以在该消息所指示的控制信道的资源上检测该控制信道。
其中，该资源指示信息可以包括所述控制信道的资源，可选的，还可以包括所述控制信道的传输方式，例如所述控制信道的重传次数等。
通过本实施例的装置，窄带用户能够有效的在宽带载波上工作，并且达到节省接收损耗电能的目的。
实施例4
本发明实施例提供了一种控制信道的传输装置，该装置可以应用于基站，由于该装置解决问题的原理与实施例2的方法类似，因此其具体的实施可以参照实施例2的方法的实施，内容相同之处不再重复说明。
图6是该装置的组成示意图，请参照图6，该控制信道的传输装置600包括：第一发送单元601和指示单元602。
在本实施例中，该第一发送单元601可以在控制信道的资源上发送所述控制信道。这里的控制信道可以是公共搜索空间的控制信道，也可以是用户专用搜索空间的控制信道。
在本实施例中，该指示单元602可以指示终端设备所述控制信道的资源，以便所述终端设备在所述控制信道的资源上检测所述控制信道。
在一个实施方式中，上述控制信道的资源是终端设备和基站预先约定的，指示单元602包括：
第一指示单元6021，其根据所述基站与终端设备的约定指示所述终端设备所述控制信道的资源。
其中，该基站还可以通过物理广播信道指示该控制信道的传输方式和/或资源划分，该装置600还包括：
第二发送单元603，其将所述控制信道的传输方式和/或资源划分的指示信息通过 物理广播信道发送出去。由此，可以增加灵活性。
在另一个实施方式中，上述控制信道的资源通过物理广播信道指示，指示单元602包括：
第二指示单元6022，其通过物理广播信道所包含的信息指示所述控制信道的资源。
其中，该物理广播信道中包含上述控制信道的资源配置信息和/或上述控制信道的重传次数；和/或上述控制信道所调度的数据信道的重传次数，由此，终端设备可以根据所述资源配置信息确定控制信道的资源，根据所述控制信道的重传次数检测接收所述控制信道，和/或根据所述数据信道的重传次数检测接收所述数据信道。
其中，该物理广播信道中所包含的信息还可以包括：所述控制信道的资源在时域和频域上的位置；和/或所述控制信道的资源的传输起点位置和重传次数；和/或所述控制信道的资源的频域位置和重传次数。
在另一个实施方式中，上述控制信道的资源通过随机接入过程中的消息指示，指示单元602包括：
第三指示单元6023，其通过随机接入过程中的消息所包含的资源指示信息指示所述终端设备所述控制信道的资源。其中，上述随机接入过程中的消息可以是RAR消息，也可以是Message4消息。
其中，上述资源指示信息可以包括：上述控制信道的资源，可选的，还可以包括上述控制信道的传输方式，例如重传次数，等。
在本实施例中，第一发送单元601可以使用跨子帧调度和同子帧调度对所述控制信道进行多次重传。
通过本实施例的装置，使得窄带用户能够有效的在宽带载波上工作，并且达到节省接收损耗电能的目的。
实施例5
本发明实施例还提供了一种终端设备，其中，该终端设备包括实施例3所述的控制信道的传输装置。
图7是本发明实施例的终端设备的一构成示意图。如图7所示，该终端设备700可以包括中央处理器701和存储器702；存储器702耦合到中央处理器701。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实 现电信功能或其他功能。
在一个实施方式中，控制信道的传输装置的功能可以被集成到中央处理器701中，由中央处理器701实现实施例3所述的控制信道的传输装置的功能，其中关于控制信道的传输装置的功能被合并于此，在此不再赘述。
在另一个实施方式中，控制信道的传输装置可以与中央处理器701分开配置，例如可以将控制信道的传输装置配置为与中央处理器701连接的芯片，通过中央处理器701的控制来实现定位装置的功能。
如图7所示，该终端设备700还可以包括：通信模块703、输入单元704、音频处理单元705、显示器706、电源707。值得注意的是，终端设备700也并不是必须要包括图7中所示的所有部件；此外，用户设备700还可以包括图7中没有示出的部件，可以参考现有技术。
如图7所示，中央处理器701有时也称为控制器或操作控件，可以包括微处理器或其他处理器装置和/或逻辑装置，该中央处理器701接收输入并控制用户设备700的各个部件的操作。
其中，存储器702，例如可以是缓存器、闪存、硬驱、可移动介质、易失性存储器、非易失性存储器或其它合适装置中的一种或更多种。可储存上述与配置有关的信息，此外还可存储执行有关信息的程序。并且中央处理器701可执行该存储器702存储的该程序，以实现信息存储或处理等。其他部件的功能与现有类似，此处不再赘述。用户设备700的各部件可以通过专用硬件、固件、软件或其结合来实现，而不偏离本发明的范围。
通过本实施例的终端设备，窄带用户能够有效的在宽带载波上工作，并且达到节省接收损耗电能的目的。
实施例6
本发明实施例还提供了一种基站，其中，该基站包括实施例4所述的控制信道的传输装置。
图8是本发明实施例的基站的一构成示意图。如图8所示，基站800可以包括：中央处理器(CPU)801和存储器802；存储器802耦合到中央处理器801。其中该存储器802可存储各种数据；此外还存储信息处理的程序，并且在中央处理器801的控制下执行该程序，以接收终端设备发送的各种信息、并且向终端设备发送各种信 息。
在一个实施方式中，控制信道的传输装置的功能可以被集成到中央处理器801中，由中央处理器801实现实施例4所述的控制信道的传输装置的功能，其中关于控制信道的传输装置的功能被合并于此，在此不再赘述。
在另一个实施方式中，控制信道的传输装置可以与中央处理器801分开配置，例如可以将控制信道的传输装置配置为与中央处理器801连接的芯片，通过中央处理器801的控制来实现控制信道的传输装置的功能。
此外，如图8所示，基站800还可以包括：收发机803和天线804等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，基站800也并不是必须要包括图8中所示的所有部件；此外，基站800还可以包括图8中没有示出的部件，可以参考现有技术。
通过本实施例的基站，使得窄带用户能够有效的在宽带载波上工作，并且达到节省接收损耗电能的目的。
实施例7
本发明实施例还提供一种通信系统，图9是该通信系统的拓扑结构示意图，如图9所示，该通信系统900包括：终端设备901和基站902。
其中，该基站902被配置为在控制信道的资源上发送所述控制信道，并指示终端设备901所述控制信道的资源；
其中，终端设备901被配置为确定控制信道的资源，并在确定的所述控制信道的资源上检测所述控制信道。
在本实施例中，该终端设备901可以应用实施例1所述的控制信道的传输方法，也即实现实施例3所述的控制信道的传输装置的功能，实施例1和实施例3的内容被合并于此，在此不再赘述。
在本实施例中，该基站902可以应用实施例2所述的控制信道的传输方法，也即实现实施例4所述的控制信道的传输装置的功能，实施例2和实施例4的内容被合并于此，在此不再赘述。
通过本实施例的通信系统，窄带用户能够有效的在宽带载波上工作，并且达到节省接收损耗电能的目的。
本发明实施例还提供一种计算机可读程序，其中当在控制信道的传输装置或终端 设备中执行所述程序时，所述程序使得计算机在所述控制信道的传输装置或终端设备中执行实施例1所述的控制信道的传输方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在控制信道的传输装置或终端设备中执行实施例1所述的控制信道的传输方法。
本发明实施例还提供一种计算机可读程序，其中当在控制信道的传输装置或基站中执行所述程序时，所述程序使得计算机在所述控制信道的传输装置或基站中执行实施例2所述的控制信道的传输方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得计算机在控制信道的传输装置或基站中执行实施例2所述的控制信道的传输方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。逻辑部件例如现场可编程逻辑部件、微处理器、计算机中使用的处理器等。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的精神和原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。

Claims (20)

  1. 一种控制信道的传输装置，应用于终端设备，其中，所述装置包括：
    确定单元，其确定控制信道的资源；
    检测单元，其在所述确定单元所确定的所述控制信道的资源上检测所述控制信道。
  2. 根据权利要求1所述的装置，其中，所述确定单元包括：
    第一确定单元，其在所述终端设备检测到同步信号和物理广播信道后，根据所述终端设备与基站预先约定的发送控制信道的固定的子帧和/或固定的物理资源块对确定所述控制信道的资源。
  3. 根据权利要求2所述的装置，其中，所述物理广播信道中包含：所述控制信道的传输方式和/或资源划分的指示信息。
  4. 根据权利要求1所述的装置，其中，所述确定单元包括：
    第二确定单元，其在所述终端设备检测到同步信号和物理广播信道后，根据所述物理广播信道中所包含的信息，确定所述控制信道的资源。
  5. 根据权利要求4所述的装置，其中，所述物理广播信道中所包含的信息包括：所述控制信道的资源配置信息；和/或所述控制信道的重传次数；和/或所述控制信道所调度的数据信道的重传次数；和/或所述控制信道的资源在时域和频域上的位置；和/或所述控制信道的资源的传输起点位置和重传次数；和/或所述控制信道的资源的频域位置和重传次数。
  6. 根据权利要求5所述的装置，其中，所述装置还包括：
    检测单元，其根据所述控制信道的重传次数检测接收所述控制信道；和/或根据所述数据信道的重传次数检测接收所述数据信道。
  7. 根据权利要求1所述的装置，其中，所述确定单元包括：
    获取单元，其在所述终端设备在随机接入过程中从基站获得所述控制信道的资源指示信息；
    第三确定单元，其根据所述资源指示信息确定所述控制信道的资源；
    其中，所述资源指示信息包括：所述控制信道的资源和/或所述控制信道的传输方式。
  8. 根据权利要求1所述的装置，其中，公共搜索空间的控制信道的资源和用户专用搜索空间的控制信道的资源在时域上分开。
  9. 一种控制信道的传输装置，应用于基站，其中，所述装置包括：
    第一发送单元，其在控制信道的资源上发送所述控制信道；
    检测单元，其指示终端设备所述控制信道的资源，以便所述终端设备在所述控制信道的资源上检测所述控制信道。
  10. 根据权利要求9所述的装置，其中，所述指示单元包括：
    第一指示单元，其根据所述基站与终端设备的约定指示所述终端设备所述控制信道的资源。
  11. 根据权利要求10所述的装置，其中，所述装置还包括：
    第二发送单元，其将所述控制信道的传输方式和/或资源划分的指示信息通过物理广播信道发送出去。
  12. 根据权利要求9所述的装置，其中，所述指示单元包括：
    第二指示单元，其通过物理广播信道所包含的信息指示所述控制信道的资源。
  13. 根据权利要求12所述的装置，其中，所述物理广播信道中所包含的信息包括：所述控制信道的资源配置信息；和/或所述控制信道的重传次数；和/或所述控制信道所调度的数据信道的重传次数；和/或所述控制信道的资源在时域和频域上的位置；和/或所述控制信道的资源的传输起点位置和重传次数；和/或所述控制信道的资源的频域位置和重传次数。
  14. 根据权利要求13所述的装置，其中，
    所述第一发送单元使用跨子帧调度和同子帧调度对所述控制信道和/或所述数据信道进行多次重传。
  15. 根据权利要求9所述的装置，其中，所述指示单元包括：
    第三指示单元，其通过随机接入过程中的消息所包含的资源指示信息指示所述终端设备所述控制信道的资源，其中，所述资源指示信息包括：所述控制信道的资源和/或所述控制信道的传输方式。
  16. 根据权利要求9所述的装置，其中，公共搜索空间的控制信道的资源和用户专用搜索空间的控制信道的资源在时域上分开。
  17. 一种通信系统，其中，所述通信系统包括终端设备和基站，其中，
    所述基站被配置为在控制信道的资源上发送所述控制信道，并指示终端设备所述控制信道的资源；
    所述终端设备被配置为确定控制信道的资源，并在确定的所述控制信道的资源上检测所述控制信道。
  18. 根据权利要求17所述的系统，其中，
    所述基站被配置为使用跨子帧调度和同子帧调度对所述控制信道和/或所述控制信道所调度的数据信道进行多次重传。
  19. 根据权利要求17所述的系统，其中，
    所述终端设备被配置为根据与所述基站约定的发送控制信道的资源确定所述控制信道的资源，或者根据物理广播信道中所包含的信息确定所述控制信道的资源，或者根据随机接入过程中的消息所包含的信息确定所述控制信道的资源。
  20. 根据权利要求17所述的系统，其中，
    公共搜索空间的控制信道的资源和用户专用搜索空间的控制信道的资源在时域上分开。
PCT/CN2014/090484 2014-11-06 2014-11-06 控制信道的传输方法、装置以及通信系统 WO2016070383A1 (zh)

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