WO2019023833A1 - 通信方法和装置 - Google Patents

通信方法和装置 Download PDF

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Publication number
WO2019023833A1
WO2019023833A1 PCT/CN2017/095116 CN2017095116W WO2019023833A1 WO 2019023833 A1 WO2019023833 A1 WO 2019023833A1 CN 2017095116 W CN2017095116 W CN 2017095116W WO 2019023833 A1 WO2019023833 A1 WO 2019023833A1
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WO
WIPO (PCT)
Prior art keywords
epdcch
indication information
sib
network device
resource
Prior art date
Application number
PCT/CN2017/095116
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English (en)
French (fr)
Inventor
任占阳
李振宇
张武荣
韩金侠
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to BR112020002228-4A priority Critical patent/BR112020002228A2/pt
Priority to CN201780092894.3A priority patent/CN110832908B/zh
Priority to EP17919662.1A priority patent/EP3648513A4/en
Priority to PCT/CN2017/095116 priority patent/WO2019023833A1/zh
Publication of WO2019023833A1 publication Critical patent/WO2019023833A1/zh
Priority to US16/775,409 priority patent/US20200169947A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • 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
    • 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

Definitions

  • the embodiments of the present application relate to the field of communications technologies, and in particular, to a communication method and apparatus.
  • a terminal such as a user equipment (User Equipment, UE) completes access to an MF cell by receiving a discovery signal (DRS) transmitted by a network device (for example, a base station).
  • DRS discovery signal
  • the base station sends a DRS to a plurality of UEs through a subframe, where the DRS includes a primary synchronization signal (PSS), a MF-primary synchronization signal (MF-PSS), and a secondary synchronization signal (secondary synchronization).
  • PSS primary synchronization signal
  • MF-PSS MF-primary synchronization signal
  • secondary synchronization secondary synchronization signal
  • the base station also sends a physical downlink control channel to the UE (Physical Downlink Control) A channel, a PDCCH, and a Physical Downlink Shared Channel (PDSCH), where the PDSCH carries a MulteFire system information block 1 (SIB-MF1), and the PDCCH is used to indicate scheduling information of the PDSCH.
  • SIB-MF1 MulteFire system information block 1
  • the UE receives the DRS and parses the PSS, the MF-PSS, the SSS, and the MF-SSS to obtain a physical cell ID (PCI), parses the MF-PBCH to obtain information such as system bandwidth, and completes synchronization with the base station clock and frequency.
  • PCI physical cell ID
  • the UE receives the PDCCH and the PDSCH to obtain the SIB-MF1.
  • the SIB-MF1 mainly contains the necessary system information for the UE to complete the connection and data transmission with the base station.
  • the UE When the MF system is deployed in a scenario such as a port, a dock, or an automated production stream, the UE generally has a high mobility. During the mobile process of the UE, the wireless signal transmitted by the base station is easily blocked by various objects between the UE and the base station. As a result, the quality of the wireless signal is poor, and the UE may not receive the data normally. On the other hand, due to the large number of UEs, it is easy to block the wireless signal during the mobile process, and the UE may not be able to receive the data sent by the base station normally. .
  • the scheduling information of the SIB-MF1 is transmitted by the PDCCH. Therefore, when the UE is in the coverage scenario of the cell with poor signal quality, the PDCCH may not be correctly demodulated, and thus the SIB-MF1 may not be obtained. The access to the base station and subsequent data transmission with the base station cannot be completed.
  • the embodiment of the present application provides a communication method and device, which are used to enable a terminal to accurately obtain scheduling information of an SIB, thereby improving communication success rate and efficiency.
  • an embodiment of the present application provides a communication method, including:
  • the ePDCCH channel carries scheduling information of the SIB;
  • the frequency domain resource occupied by the ePDCCH is a continuous frequency domain resource located at an edge of the system bandwidth.
  • the time-frequency resource occupied by the ePDCCH is a pair of physical resource block (PRB) occupied by the ePDCCH, and the N is an integer greater than or equal to 1.
  • PRB physical resource block
  • the time-frequency resources occupied by the ePDCCH are the first to Nth PRB pairs, and/or the M-N+1th to the Mth PRB pairs, where the M is a PRB pair. The total number.
  • the method further includes:
  • the resource indication information is used to indicate a time-frequency resource occupied by the ePDCCH.
  • the sending the resource indication information to the terminal includes:
  • MIB master information block
  • the resource indication information occupies 1 free bit or two idle bits in the MIB.
  • the method further includes:
  • the transmission type indication information is used to indicate a transmission type of the ePDCCH, and the transmission type of the ePDCCH is a centralized transmission or a distributed transmission.
  • the transmission type indication information is included in an MIB, and the transmission type indication information occupies at least one idle bit in the MIB.
  • an embodiment of the present application provides a communication method, including:
  • the ePDCCH channel carries scheduling information of the SIB
  • the PDSCH carries the SIB
  • the time-frequency resource occupied by the ePDCCH is a continuous frequency domain resource located at the edge of the system bandwidth.
  • the time-frequency resource occupied by the ePDCCH is N PRB pairs occupied by the ePDCCH, and the N is an integer greater than or equal to 1.
  • the time-frequency resources occupied by the ePDCCH are the first to Nth PRB pairs, and/or the M-N+1th to the Mth PRB pairs, where the M is a PRB pair. The total number.
  • the method further includes:
  • the ePDCCH sent by the receiving network device includes: receiving the ePDCCH sent by the network device according to a time-frequency resource occupied by the ePDCCH.
  • the receiving the resource indication information sent by the network device includes:
  • the resource indication information occupies at least one idle bit in the MIB.
  • the method further includes:
  • the transmission type indication information is used to indicate a transmission type of the ePDCCH, and the transmission type of the ePDCCH is a centralized transmission or a distributed transmission;
  • Receiving the ePDCCH sent by the network device including: receiving the ePDCCH sent by the network device according to the transmission type of the ePDCCH.
  • the transmission type indication information is included in an MIB, and the transmission type indication information occupies at least one idle bit in the MIB.
  • an embodiment of the present application provides a communications apparatus, including:
  • a sending module configured to send an ePDCCH to the terminal, where the ePDCCH channel carries scheduling information of the SIB, and sends a PDSCH to the terminal according to the scheduling information of the SIB, where the PDSCH carries the SIB.
  • the frequency domain resource occupied by the ePDCCH is a continuous frequency domain resource located at an edge of the system bandwidth.
  • the time-frequency resource occupied by the ePDCCH is N PRB pairs occupied by the ePDCCH, and the N is an integer greater than or equal to 1.
  • the time-frequency resources occupied by the ePDCCH are the first to Nth PRB pairs, and/or the M-N+1th to the Mth PRB pairs, where the M is a PRB pair. The total number.
  • the sending module is further configured to send the resource indication information to the terminal, where the resource indication information is used to indicate a time-frequency resource occupied by the ePDCCH.
  • the sending module is specifically configured to: send an MIB to the terminal, where the MIB includes the resource indication information.
  • the resource indication information occupies at least one idle bit in the MIB.
  • the sending module is further configured to send, to the terminal, transmission type indication information, where the transmission type indication information is used to indicate a transmission type of the ePDCCH, and the transmission type of the ePDCCH is centralized. Transmission or distributed transmission.
  • the transmission type indication information is included in an MIB, and the transmission type indication information occupies at least one idle bit in the MIB.
  • the communication device of the third aspect may be a network device or a chip inside the network device.
  • an embodiment of the present application provides a communications apparatus, including:
  • a receiving module configured to receive an ePDCCH and a PDSCH sent by the network device, where the ePDCCH channel carries scheduling information of the SIB; the PDSCH carries the SIB;
  • a processing module configured to demodulate the PDSCH according to the scheduling information of the SIB, to obtain the SIB.
  • the time-frequency resource occupied by the ePDCCH is a continuous frequency domain resource located at the edge of the system bandwidth.
  • the time-frequency resource occupied by the ePDCCH is N PRB pairs occupied by the ePDCCH, and the N is an integer greater than or equal to 1.
  • the time-frequency resources occupied by the ePDCCH are the first to Nth PRB pairs, and/or the M-N+1th to the Mth PRB pairs, where the M is a PRB pair. The total number.
  • the receiving module is further configured to receive a resource indication sent by the network device Information, the resource indication information is used to indicate a time-frequency resource occupied by the ePDCCH;
  • the receiving module is configured to receive the ePDCCH sent by the network device, where the receiving module is configured to receive the ePDCCH sent by the network device according to the time-frequency resource occupied by the ePDCCH.
  • the receiving module is configured to receive the resource indication information sent by the network device, where the receiving module is configured to receive an MIB sent by the network device, where the MIB includes the resource indication information.
  • the resource indication information occupies at least one idle bit in the MIB.
  • the receiving module is further configured to: receive transmission type indication information sent by the network device, where the transmission type indication information is used to indicate a transmission type of the ePDCCH, and the ePDCCH transmission Type is centralized transmission or distributed transmission;
  • the receiving module is configured to receive the ePDCCH sent by the network device, where the receiving module is configured to receive the ePDCCH sent by the network device according to the transmission type of the ePDCCH.
  • the transmission type indication information is included in an MIB, and the transmission type indication information occupies at least one idle bit in the MIB.
  • the communication device of the fourth aspect may be a terminal or a chip inside the terminal.
  • the embodiment of the present application provides a network device, including: a transceiver; the transceiver is configured to perform the communication method according to any one of the embodiments of the present application.
  • an embodiment of the present application provides a terminal, including: a processor and a transceiver, where the processor and the transceiver are used to perform the communication method according to any one of the embodiments of the present application.
  • the embodiment of the present application provides a computer readable storage medium, when the instructions in the storage medium are executed by a processor of the communication device, to enable the communication device to perform the communication method described in the first aspect of the present application.
  • the embodiment of the present application provides a computer readable storage medium, when the instructions in the storage medium are executed by a processor of the communication device, to enable the communication device to perform the communication method described in the second aspect of the present application.
  • An embodiment of the present application provides a communication method and apparatus, where the scheduling information of the SIB is carried in the ePDCCH, and the scheduling information of the SIB in the prior art is carried in the PDCCH, because the aggregation level of the ePDCCH may be higher than the maximum aggregation level of the PDCCH, The performance of the terminal demodulation ePDCCH is higher. Even in the case of poor signal coverage quality, the terminal can correctly demodulate the ePDCCH, thereby obtaining accurate scheduling information of the SIB, thereby successfully completing the access network device and subsequent network devices. Data transmission improves communication success rate and efficiency.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 2 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a communication method according to another embodiment of the present application.
  • FIG. 4 is a schematic diagram of relationship between a frequency domain resource occupied by an ePDCCH and a frequency domain resource occupied by an SIB according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present disclosure.
  • a communication system includes a network device and at least one terminal, and the network device and the at least one terminal are implemented by using the technical solutions provided in the following embodiments of the present application.
  • Communication The communication system of the present embodiment can be applied to a 2G communication system, a 3G communication system, an LTE communication system, an MF (MulteFire) system, or a 5G communication system.
  • a network device also known as a radio access network (RAN) device, is a device that accesses a terminal to a wireless network, and may be an evolved base station in Long Term Evolution (LTE) (Evolutional Node B, eNB or eNodeB), or a base station in an MF system, or a relay station or an access point, or a base station in a 5G network, such as a Transmission and Reception Point (TRP), a controller, is not here. limited.
  • LTE Long Term Evolution
  • eNB Evolution
  • eNodeB evolved Node B
  • MF Mobility Management Function
  • TRP Transmission and Reception Point
  • a wireless terminal can refer to a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or on-board. It can also be deployed on the water (such as a ship). Etc); can also be deployed in the air (such as airplanes, balloons, satellites, etc.).
  • the terminal may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, and an industrial control.
  • FIG. 2 is a flowchart of a communication method according to an embodiment of the present application. As shown in FIG. 2, the method in this embodiment may be applied to an MF system, but is not limited to an MF system. The method in this embodiment may include:
  • the network device sends an ePDCCH to the terminal.
  • the network device sends the SIB to the terminal.
  • the SIB is called SIB-MF1
  • the SIB-MF1 mainly includes necessary system information of the MF system, and is used for the terminal and the The network device completes connection establishment, data transmission, and the like.
  • the terminal In order to enable the terminal to receive the SIB, the terminal needs to receive the scheduling information of the SIB first, and then accurately receive the SIB sent by the network device according to the scheduling information of the SIB. Therefore, the key is how to enable the terminal to accurately receive the scheduling information of the SIB. Based on this, the scheduling information of the SIB sent by the network device to the terminal in the embodiment is carried in the ePDCCH, and the network device sends the ePDCCH carrying the SIB to the terminal. Correspondingly, the terminal receives the ePDCCH sent by the network device.
  • the network device sends a PDSCH to the terminal according to the scheduling information of the SIB.
  • the SIB is carried in the PDSCH
  • the scheduling information of the SIB is the information of the scheduling SIB. Therefore, in order to make the scheduling information of the SIB carried in the ePDCCH correspond to the SIB carried by the PDSCH, the network device in this embodiment is based on S101. Scheduling information of the SIB carried by the ePDCCH, sending the bearer to the terminal PDSCH. Correspondingly, the terminal receives the PDSCH carrying the SIB sent by the network device.
  • the terminal demodulates the PDSCH according to the scheduling information of the SIB, and obtains the SIB.
  • the terminal after the terminal receives the ePDCCH and the PDSCH sent by the network device, it is to be noted that, in this embodiment, the order in which the terminal receives the ePDCCH and the PDSCH is not limited; the terminal acquires the SIB carried in the ePDCCH from the ePDCCH.
  • the scheduling information is obtained by demodulating the received PDSCH according to the acquired scheduling information of the SIB, and obtaining the SIB carried in the PDSCH. Then, the processing performed by the terminal according to the SIB can be referred to the related description in the prior art, and details are not described herein again.
  • the scheduling information of the SIB is carried in the ePDCCH, and the scheduling information of the SIB in the prior art is carried in the PDCCH. Since the aggregation level of the ePDCCH can be higher than the maximum aggregation level of the PDCCH, the performance of the terminal demodulating the ePDCCH is Higher, even in the case of poor signal coverage quality, the terminal can correctly demodulate the ePDCCH, thereby obtaining accurate SIB scheduling information, thereby successfully completing the access network device and subsequent data transmission with the network device, and improving the communication. Success rate and efficiency.
  • the terminal needs to correctly receive the ePDCCH to obtain the scheduling information of the SIB. Therefore, before receiving the ePDCCH, the terminal needs to know the time-frequency resource occupied by the ePDCCH, and receive the ePDCCH sent by the network device according to the time-frequency resource occupied by the ePDCCH.
  • the time-frequency resource occupied by the ePDCCH is preset, that is, the time-frequency resource occupied by the ePDCCH does not change with the network environment every time the network device sends the ePDCCH, and the network device and the terminal
  • the time-frequency resource occupied by the ePDCCH is known in advance. Therefore, before the network device sends the ePDCCH to the terminal, the network device does not need to inform the terminal of the time-frequency resource occupied by the ePDCCH, thereby saving communication overhead between the network device and the terminal.
  • FIG. 3 is a flowchart of a communication method according to another embodiment of the present disclosure.
  • the method in this embodiment may include:
  • the network device sends resource indication information to the terminal.
  • the network device informs the terminal of the time-frequency resource occupied by the ePDCCH, so that the terminal correctly receives the ePDCCH according to the time-frequency resource occupied by the ePDCCH, where the network device in the embodiment informs the terminal of the ePDCCH occupation by indicating the resource indication information.
  • Time-frequency resources The resource indication information is used to indicate a time-frequency resource occupied by the ePDCCH.
  • the terminal receives the resource indication information sent by the network device.
  • the network device sends an ePDCCH to the terminal.
  • the network device sends an ePDCCH to the terminal, where the time-frequency resource occupied by the ePDCCH sent in S302 is the same as the time-frequency resource indicated by the resource indication information.
  • the execution order of S301 and S302 is not limited in this embodiment.
  • the terminal receives the ePDCCH sent by the network device according to the time-frequency resource occupied by the ePDCCH.
  • the terminal after receiving the resource indication information, determines the time-frequency resource occupied by the ePDCCH according to the resource indication information, and determines the location of the ePDCCH according to the time-frequency resource occupied by the ePDCCH, and accurately receives the ePDCCH sent by the network device.
  • the network device sends the PDSCH to the terminal according to scheduling information of the SIB.
  • the terminal demodulates the PDSCH according to the scheduling information of the SIB, and obtains the SIB.
  • the network device sends the resource indication information to the terminal to notify the terminal of the time-frequency resource occupied by the ePDCCH, so that the terminal receives the ePDCCH more accurately.
  • the scheduling information of the SIB is carried in the ePDCCH, and the scheduling information of the SIB in the prior art is carried in the PDCCH. Since the aggregation level of the ePDCCH can be higher than the maximum aggregation level of the PDCCH, the performance of the terminal demodulating the ePDCCH is higher. Even in the case of poor signal coverage quality, the terminal can correctly demodulate the ePDCCH, thereby obtaining accurate SIB scheduling information, thereby successfully completing the access network device and subsequent data transmission with the network device, improving the communication success rate and effectiveness.
  • the time-frequency resource occupied by the ePDCCH is the N PRB pairs occupied by the ePDCCH, and the N is an integer greater than or equal to 1.
  • N may be equal to 16, in this case, the maximum aggregation level of the ePDCCH is 64, and the demodulation performance of the ePDCCH is stronger by the terminal than the maximum aggregation level of the PDCCH is 8. It should be noted that N can also take other values, such as 8.
  • the frequency domain resource occupied by the ePDCCH is a continuous frequency domain resource located at an edge of the system bandwidth. Since the frequency domain resources occupied by the SIB in the PDSCH are continuous, the frequency domain resources occupied by the ePDCCH are also preferably continuous and only located at the edge of the system bandwidth, which is advantageous for the frequency domain resource allocation of the SIB.
  • 4 is a schematic diagram of a relationship between a frequency domain resource occupied by an ePDCCH and a frequency domain resource occupied by an SIB according to an embodiment of the present disclosure.
  • FIG. 4 is an example in which an SIB is an SIB-MF1.
  • the frequency domain resource occupied by the ePDCCH is a continuous frequency domain resource located at the upper edge of the system bandwidth, and the remaining part of the system bandwidth can be used for the frequency domain resource allocation of the SIB, which can be allocated to the SIB.
  • the frequency domain resources have increased.
  • the frequency domain resource occupied by the ePDCCH is a continuous frequency domain resource located at the lower edge of the system bandwidth, and the remaining part of the system bandwidth can be used for the frequency domain resource allocation of the SIB, which can be allocated to the SIB.
  • the frequency domain resources have increased.
  • the frequency domain resource occupied by the ePDCCH is a continuous frequency domain resource located at an upper edge of the system bandwidth and a continuous frequency domain resource at a lower edge of the system bandwidth, and the remaining intermediate portion of the system bandwidth can be used for the SIB.
  • the frequency domain resource allocation relatively speaking, more frequency domain resources can be allocated to the SIB.
  • the frequency domain resource occupied by the ePDCCH is a frequency domain resource located in the middle part of the system bandwidth, and the remaining frequency domain resources of the system bandwidth are discontinuous, and the resource 1 shown in the figure is Or the resource 2 is discontinuous, and the resource 1 or the resource 2 can be used for the frequency domain resource allocation of the SIB, but the resource 1 and the resource 2 cannot be used for the frequency domain resource allocation of the SIB, and relatively, the frequency domain can be allocated to the SIB.
  • the resource is reduced, and the frequency domain resource allocation of the pilot SIB is limited.
  • the system bandwidth may be divided into M PRB pairs in the frequency domain, that is, the total number of PRB pairs is M, and the first PRB pair, the second PRB pair, ..., in order.
  • the resource indication information is carried in the MIB
  • one of S301 is Energy implementation:
  • the network device sends an MIB to the terminal, where the MIB includes the resource indication information.
  • the terminal receives the MIB sent by the network device, and obtains the resource indication information according to the received MIB.
  • the existing MIB has an idle bit. Therefore, the resource indication information may occupy the idle bit of the MIB, that is, the idle bit of the MIB is used to indicate the time-frequency resource occupied by the ePDCCH, and the MIB modification is less affected.
  • the resource indication information of this embodiment may occupy at least one idle bit of the MIB.
  • the MIB in the existing MF system has 10 idle bits, and the resource indication information in this embodiment may occupy one or two idle bits of the MIB, for example.
  • one idle bit of the MIB is used to indicate a time-frequency resource occupied by the ePDCCH, that is, the resource indication information occupies one idle bit in the MIB.
  • the contents of the MF-MIB are as follows:
  • an ePDCCH-SIB-MF1-mf field is added to an idle bit of the MF-MIB, where an explanation of the ePDCCH-SIB-MF1-mf field is as shown in Table 1, where Table 1 is shown.
  • the ePDCCH occupies 16 PRB pairs, but the embodiment is not limited to the explanation in Table 1.
  • the ePDCCH can be configured with two resource sets, namely, ePDCCH PRB pair set 1 and ePDCCH PRB pair set 2.
  • the control information of the SIB may be carried only on one of the resource sets, or may be carried on the two resource sets.
  • the two sets of PRB pair resources are at the edge of the system bandwidth.
  • N represents the total number of PRB pairs included in the system.
  • the PRB pair that the ePDCCH occupies is a PRB pair of 0-15
  • the PRB pair of the PRB pair set 1 is a PRB pair of 0-7
  • the PRB pair PRB pair included in the set 2 is a PRB pair 8-15.
  • the PRB pair that the ePDCCH occupies is the PRB pair 84-99, wherein the PRB pair of the PRB pair set 1 is the PRB pair 92-99, and the PRB pair set 2 includes
  • the PRB pair is a PRB pair of 84 to 91 (the system bandwidth N is 100 PRB), or a PRB pair of 34 to 49, wherein the PRB pair PRB pair includes the PRB pair 42 to 49, and the PRB pair 2 includes the PRB.
  • the pair is PRB pair 34 to 41 (system bandwidth N is 50 PRB).
  • the 2 idle bits of the MIB are used to indicate the time-frequency resource occupied by the ePDCCH, that is, the resource indication information occupies 2 idle bits in the MIB.
  • the contents of the MF-MIB are as follows:
  • the ePDCCH-SIB-MF1-mf field is added to two idle bits of the MF-MIB.
  • one or two PRB pair resource sets can be configured for the ePDCCH.
  • the field of the ePDCCH-SIB-MF1-mf is "00"
  • the PRB pair occupied by the ePDCCH is the PRB pair 0-7.
  • the field of the ePDCCH-SIB-MF1-mf is "01”
  • the PRB pair occupied by the ePDCCH is the PRB pair 92-99 (the system bandwidth is 100 PRB).
  • PRB pair 42 ⁇ 49 system bandwidth is 50PRB.
  • the field of the ePDCCH-SIB-MF1-mf is "10" or "11", it indicates that the ePDCCH includes two PRB pair resource sets, and the 16 PRB pairs are occupied, which is the same as the PRB pair resource configuration of Table 1, and will not be described again.
  • each resource set includes eight PRB pairs, and the PRB pair included in the resource set 1 is a PRB pair of 0-7.
  • the PRB pair included in the resource set 2 is the PRB pair N-8 to N-1.
  • the frequency domain resources occupied by the ePDCCH may contain two edge locations of the system bandwidth.
  • the terminal needs to determine a transmission type of the ePDCCH, where the transmission type is centralized transmission or distributed transmission.
  • the transmission type of the ePDCCH is preset, that is, the transmission type of the ePDCCH does not change with the network environment every time the network device sends the ePDCCH, and the network device and the terminal have been known in advance.
  • the transmission type of the ePDCCH Therefore, before the network device sends the ePDCCH to the terminal, the network device does not need to inform the terminal of the transmission type of the ePDCCH, thereby saving communication overhead between the network device and the terminal.
  • the transmission type of the ePDCCH for transmitting the SIB scheduling information is set to be distributed transmission.
  • the transmission type of the ePDCCH is not preset, and the network device needs to notify the terminal, so that the network device can flexibly adjust the transmission type of the ePDCCH according to the channel quality condition, thereby ensuring the terminal solution. Adjust the performance of ePDCCH. Therefore, the network device of this embodiment further sends transmission type indication information to the terminal, where the transmission type indication information is used to indicate the transmission type of the ePDCCH. Correspondingly, the terminal receives the transmission type indication information sent by the network device, determines the transmission type of the ePDCCH according to the transmission type indication information, and then receives the ePDCCH sent by the network device according to the transmission type of the ePDCCH.
  • the foregoing transmission type indication information is included in the MIB.
  • the existing MIB has an idle bit. Therefore, the foregoing transmission type indication information may occupy an idle bit of the MIB, that is, the idle bit of the MIB is used to indicate the transmission type of the ePDCCH, and the MIB is used.
  • the effect of the modification is small, and the transmission type of this embodiment can occupy at least one idle bit of the MIB.
  • the MIB in the existing MF system has 10 idle bits, and the transmission type of this embodiment can occupy, for example, one idle bit of the MIB.
  • one idle bit of the MIB is used to indicate a transmission type of the ePDCCH, that is, the foregoing transmission type indication information occupies one idle bit in the MIB.
  • the content of the MIB can be added with the following fields:
  • the localized indicates that the ePDCCH transmission type is a centralized transmission
  • the distributed indicates that the ePDCCH transmission type is a distributed transmission.
  • FIG. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device of this embodiment may include: a sending module 11.
  • the transmitting module 11 is configured to send an ePDCCH to the terminal, where the ePDCCH channel carries scheduling information of the SIB, and send a PDSCH to the terminal according to the scheduling information of the SIB, where the PDSCH carries the SIB.
  • the frequency domain resource occupied by the ePDCCH is a continuous frequency domain resource located at an edge of the system bandwidth.
  • the time-frequency resource occupied by the ePDCCH is the N PRB pairs occupied by the ePDCCH, where the N is an integer greater than or equal to 1.
  • the time-frequency resource occupied by the ePDCCH is a first to Nth PRB pair, and/or a M-N+1 to an Mth PRB pair, where the M is a total number of PRB pairs.
  • the sending module 11 is further configured to send the resource indication information to the terminal, where the resource indication information is used to indicate a time-frequency resource occupied by the ePDCCH.
  • the sending module 11 is specifically configured to: send an MIB to the terminal, where the MIB includes the resource indication information.
  • the resource indication information occupies at least one idle bit in the MIB.
  • the sending module 11 is further configured to send the transmission type indication information to the terminal, where the transmission type indication information is used to indicate a transmission type of the ePDCCH, and the transmission type of the ePDCCH is a centralized transmission or Distributed transmission.
  • the transmission type indication information is included in an MIB, and the transmission type indication information occupies at least one idle bit in the MIB.
  • the communication device described in this embodiment may be used to perform the technical solution of the network device or its internal chip in the foregoing method embodiments, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the method embodiment. The corresponding description will not be repeated here.
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in FIG. 6 , the network device in this embodiment may include: a transceiver 21 .
  • the above sending module 11 may be the transceiver 21 in this embodiment.
  • the transceiver 21 includes a transmitter and a receiver, and the above transmitting module 11 may be a transmitter in the transceiver 21.
  • the transceiver 21 may include a necessary radio frequency communication device such as a mixer.
  • the network device of this embodiment may further include a processor 22.
  • the processor 22 is communicatively coupled to the transceiver 21.
  • the processor 22 can control the transceiver 21.
  • the processor 22 can include a central processing unit (Central Processing Unit (CPU), digital signal processor (DSP), Microcontroller Unit (MCU), Application Specific Integrated Circuit (ASIC), or Field-Programmable Logic Gate Array (Field-Programmable) At least one of Gate Array, FPGA).
  • CPU Central Processing Unit
  • DSP digital signal processor
  • MCU Microcontroller Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Logic Gate Array
  • the network device of this embodiment may further include a memory 23 for storing program instructions, which may be executed when the program instructions are invoked.
  • the program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solution of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically the processor 22, to perform the network in various embodiments of the present application. All or part of the steps of the device.
  • the foregoing computer readable storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.
  • the network device described in this embodiment may be used to implement the technical solution of the network device or its internal chip in the foregoing method embodiments of the present application, and the implementation principle and the technical effect are similar, and the function of each module may refer to the method embodiment. The corresponding description in the description will not be repeated here.
  • FIG. 7 is a schematic structural diagram of a communication apparatus according to an embodiment of the present disclosure.
  • the communication apparatus of this embodiment may include: a receiving module 31 and a processing module 32.
  • the receiving module 31 is configured to receive an ePDCCH and a PDSCH that are sent by the network device, where the ePDCCH channel carries scheduling information of the SIB; the PDSCH carries the SIB;
  • the processing module 32 is configured to demodulate the PDSCH according to the scheduling information of the SIB, and obtain the SIB.
  • the time-frequency resource occupied by the ePDCCH is a continuous frequency domain resource located at an edge of the system bandwidth.
  • the time-frequency resource occupied by the ePDCCH is the N PRB pairs occupied by the ePDCCH, where the N is an integer greater than or equal to 1.
  • the time-frequency resource occupied by the ePDCCH is a first to Nth PRB pair, and/or a M-N+1 to an Mth PRB pair, where the M is a total number of PRB pairs.
  • the receiving module 31 is further configured to receive resource indication information that is sent by the network device, where the resource indication information is used to indicate a time-frequency resource occupied by the ePDCCH;
  • the receiving module 31 is configured to receive the ePDCCH sent by the network device, where the receiving module 31 is configured to receive the ePDCCH sent by the network device according to the time-frequency resource occupied by the ePDCCH.
  • the receiving module 31 is configured to receive the resource indication information that is sent by the network device, where the receiving module 31 is configured to receive an MIB sent by the network device, where the MIB includes the resource indication information.
  • the resource indication information occupies at least one idle bit in the MIB.
  • the receiving module 31 is further configured to: receive the transmission type indication information that is sent by the network device, where the transmission type indication information is used to indicate a transmission type of the ePDCCH, and the transmission type of the ePDCCH is centralized. Transmission or distributed transmission;
  • the receiving module 31 is configured to receive the ePDCCH sent by the network device, where the receiving module 31 is configured to receive the ePDCCH sent by the network device according to the transmission type of the ePDCCH.
  • the transmission type indication information is included in an MIB, and the transmission type indication information occupies at least one idle bit in the MIB.
  • the communication device described in this embodiment may be used to implement the technical solution of the terminal or its internal chip in the foregoing method embodiments, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the corresponding method embodiment. The description is not repeated here.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • the terminal in this embodiment may include: a processor 41 and a transceiver 42.
  • the processor 41 is communicatively coupled to the transceiver 42.
  • the above receiving module 31 may be the transceiver 42 in this embodiment.
  • the transceiver 42 includes a transmitter and a receiver, and the above receiving module 31 can be a receiver in the transceiver 42.
  • the above processing module 32 can be embedded in hardware or in a processor 41 independent of the terminal.
  • the transceiver 42 may include a necessary radio frequency communication device such as a mixer.
  • the processor 41 may include at least one of a CPU, a DSP, an MCU, an ASIC, or an FPGA.
  • the terminal in this embodiment may further include a memory 43 for storing program instructions, and the processor 41 is configured to invoke program instructions in the memory 43 to execute the foregoing solution.
  • the program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solution of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically the processor 41, to execute the terminal in each embodiment of the present application. All or part of the steps.
  • the aforementioned computer readable storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.
  • the terminal described above in this embodiment may be used to implement the technical solution of the terminal in the foregoing method embodiments of the present application, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • the functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be universal Computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

Abstract

本申请实施例提供一种通信方法和装置，此方法包括：向终端发送ePDCCH，所述ePDCCH信道承载SIB的调度信息；根据所述SIB的调度信息向所述终端发送PDSCH，所述PDSCH承载所述SIB。SIB的调度信息承载在ePDCCH中，而现有技术中SIB的调度信息承载在PDCCH中，由于ePDCCH的聚合等级可以高于PDCCH的最大聚合等级，因此，终端解调ePDCCH的性能更高，即使在信号覆盖质量差的情况下，终端也能正确地解调ePDCCH，从而获得准确的SIB的调度信息，进而成功完成接入网络设备及后续与网络设备的数据传输，提高了通信成功率和效率。

Description

通信方法和装置 技术领域
本申请实施例涉及通信技术领域，尤其涉及一种通信方法和装置。
背景技术
在MF(MulteFire)系统中，终端，例如用户设备(User Equipment，UE)，通过接收网络设备(例如基站)发送的发现信号(discovery signal，DRS)来完成接入MF小区。通常，基站通过一个子帧向多个UE发送DRS，该DRS包括主同步信号(primary synchronization signal，PSS)，MF主同步信号(MF-primary synchronization signal，MF-PSS)，辅同步信号(secondary synchronization signal，SSS)，MF辅同步信号(MF-secondary synchronization signal，MF-SSS)，MF物理广播信道(physical broadcast channel，MF-PBCH)，另外，基站还向UE发送物理下行控制信道(Physical Downlink Control Channel，PDCCH)和物理共享信道(Physical Downlink Shared Channel，PDSCH)，其中，PDSCH承载了MulteFire系统信息块1(MulteFire system information block 1，SIB-MF1)，PDCCH用来指示PDSCH的调度信息。UE接收DRS解析PSS、MF-PSS，SSS，MF-SSS，以便获得物理小区标识(physical cell ID，PCI)，解析MF-PBCH以便获得系统带宽等信息，并完成与基站时钟、频率同步。UE接收PDCCH和PDSCH获得SIB-MF1。SIB-MF1主要包含了必要的系统信息用于UE完成与基站的连接和数据传输。
当MF系统部署于港口、码头、自动化生产流等场景时，由于UE普遍具有较高的移动性，在UE的移动过程中，基站发送的无线信号容易被UE和基站之间各种物体遮挡，从而导致无线信号质量较差，UE可能无法正常接收；另一方面，由于UE数量较大，在移动过程中，容易发生互相遮挡无线信号的情况，也会导致UE可能无法正常接收基站发送的数据。
在现有的MF系统中，SIB-MF1的调度信息由PDCCH传输，因此，当UE处于上述信号质量较差的小区覆盖场景时，可能无法正确解调PDCCH，因而也就不能获得SIB-MF1，无法完成接入基站及后续与基站的数据传输。
发明内容
本申请实施例提供一种通信方法和装置，用于使终端准确地获得SIB的调度信息，提高了通信成功率和效率。
第一方面，本申请实施例提供一种通信方法，包括：
向终端发送增强的物理下行控制信道(Enhanced Physical Downlink Control  Channel，ePDCCH)，所述ePDCCH信道承载SIB的调度信息；
根据所述SIB的调度信息向所述终端发送PDSCH，所述PDSCH承载所述SIB。
在一种可能的设计中，所述ePDCCH占用的频域资源为位于系统带宽边缘的连续频域资源。
在一种可能的设计中，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个物理资源块(physical resource block，PRB)对，所述N为大于或等于1的整数。
在一种可能的设计中，所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
在一种可能的设计中，所述方法还包括：
向所述终端发送资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源。
在一种可能的设计中，所述向终端发送资源指示信息，包括：
向所述终端发送主信息块(master information block，MIB)，所述MIB包括所述资源指示信息。
在一种可能的设计中，所述资源指示信息占据所述MIB中的1个空闲比特位或者两个空闲比特位。
在一种可能的设计中，所述方法还包括：
向所述终端发送传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输。
在一种可能的设计中，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
第二方面，本申请实施例提供一种通信方法，包括：
接收网络设备发送的ePDCCH和PDSCH，所述ePDCCH信道承载SIB的调度信息；所述PDSCH承载所述SIB；
根据所述SIB的调度信息，解调所述PDSCH，获得所述SIB。
在一种可能的设计中，所述ePDCCH占用的时频资源为位于系统带宽边缘的连续频域资源。
在一种可能的设计中，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个PRB对，所述N为大于或等于1的整数。
在一种可能的设计中，所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
在一种可能的设计中，所述方法还包括：
接收所述网络设备发送的资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源；
所述接收网络设备发送的ePDCCH，包括：根据所述ePDCCH占用的时频资源，接收所述网络设备发送的所述ePDCCH。
在一种可能的设计中，所述接收所述网络设备发送的资源指示信息，包括：
接收所述网络设备发送的MIB，所述MIB包括所述资源指示信息。
在一种可能的设计中，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
在一种可能的设计中，所述方法还包括：
接收所述网络设备发送的传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输；
接收网络设备发送的ePDCCH，包括：根据所述ePDCCH的传输类型，接收所述网络设备发送的所述ePDCCH。
在一种可能的设计中，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
第三方面，本申请实施例提供一种通信装置，包括：
发送模块，用于向终端发送ePDCCH，所述ePDCCH信道承载SIB的调度信息；以及根据所述SIB的调度信息向所述终端发送PDSCH，所述PDSCH承载所述SIB。
在一种可能的设计中，所述ePDCCH占用的频域资源为位于系统带宽边缘的连续频域资源。
在一种可能的设计中，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个PRB对，所述N为大于或等于1的整数。
在一种可能的设计中，所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
在一种可能的设计中，所述发送模块，还用于向所述终端发送资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源。
在一种可能的设计中，所述发送模块，具体用于：向所述终端发送MIB，所述MIB包括所述资源指示信息。
在一种可能的设计中，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
在一种可能的设计中，所述发送模块，还用于向所述终端发送传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输。
在一种可能的设计中，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
需要说明的是，上述第三方面的通信装置，可以是网络设备，也可以是网络设备内部的芯片。
第四方面，本申请实施例提供一种通信装置，包括：
接收模块，用于接收网络设备发送的ePDCCH和PDSCH，所述ePDCCH信道承载SIB的调度信息；所述PDSCH承载所述SIB；
处理模块，用于根据所述SIB的调度信息，解调所述PDSCH，获得所述SIB。
在一种可能的设计中，所述ePDCCH占用的时频资源为位于系统带宽边缘的连续频域资源。
在一种可能的设计中，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个PRB对，所述N为大于或等于1的整数。
在一种可能的设计中，所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
在一种可能的设计中，所述接收模块，还用于接收所述网络设备发送的资源指示 信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源；
所述接收模块用于接收网络设备发送的ePDCCH，包括：所述接收模块用于根据所述ePDCCH占用的时频资源，接收所述网络设备发送的所述ePDCCH。
在一种可能的设计中，所述接收模块用于接收所述网络设备发送的资源指示信息，包括：所述接收模块用于接收所述网络设备发送的MIB，所述MIB包括所述资源指示信息。
在一种可能的设计中，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
在一种可能的设计中，所述接收模块，还用于：接收所述网络设备发送的传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输；
所述接收模块用于接收网络设备发送的ePDCCH，包括：所述接收模块用于根据所述ePDCCH的传输类型，接收所述网络设备发送的所述ePDCCH。
在一种可能的设计中，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
需要说明的是，上述第四方面的通信装置，可以是终端，也可以是终端内部的芯片。
第五方面，本申请实施例提供一种网络设备，包括：收发机；收发机用于执行第一方面本申请实施例任一所述的通信方法。
第六方面，本申请实施例提供一种终端，包括：处理器和收发机；处理器和收发机用于执行第二方面本申请实施例任一所述的通信方法。
第七方面，本申请实施例提供一种计算机可读存储介质，当存储介质中的指令由通信装置的处理器执行时，使得通信装置能够执行第一方面本申请实施例所述的通信方法。
第八方面，本申请实施例提供一种计算机可读存储介质，当存储介质中的指令由通信装置的处理器执行时，使得通信装置能够执行第二方面本申请实施例所述的通信方法。
本申请实施例提供一种通信方法和装置，SIB的调度信息承载在ePDCCH中，而现有技术中SIB的调度信息承载在PDCCH中，由于ePDCCH的聚合等级可以高于PDCCH的最大聚合等级，因此，终端解调ePDCCH的性能更高，即使在信号覆盖质量差的情况下，终端也能正确地解调ePDCCH，从而获得准确的SIB的调度信息，进而成功完成接入网络设备及后续与网络设备的数据传输，提高了通信成功率和效率。
附图说明
图1为本申请实施例提供的通信系统的示意图；
图2为本申请一实施例提供的通信方法的流程图；
图3为本申请另一实施例提供的通信方法的流程图；
图4为本申请一实施例提供的ePDCCH占用的频域资源与SIB占用的频域资源的关系示意图；
图5为本申请一实施例提供的通信装置的结构示意图；
图6为本申请一实施例提供的网络设备的结构示意图；
图7为本申请一实施例提供的通信装置的结构示意图；
图8为本申请一实施例提供的终端的结构示意图。
具体实施方式
图1为本申请实施例提供的通信系统的示意图，如图1所示，通信系统包括网络设备和至少一个终端，网络设备和该至少一个终端通过下述各本申请实施例提供的技术方案进行通信。本实施例的通信系统可以应用于2G通信系统、3G通信系统、LTE通信系统、MF(MulteFire)系统或者5G通信系统。
以下，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解：
网络设备：又称为无线接入网(Radio Access Network，RAN)设备，是一种将终端接入到无线网络的设备，可以是长期演进(Long Term Evolution，LTE)中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者MF系统中的基站，或者中继站或接入点，或者5G网络中的基站，如发送和接收点(Transmission and Reception Point，TRP)、控制器，在此并不限定。
终端：可以是无线终端也可以是有线终端，无线终端可以是指一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端、增强现实(Augmented Reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等，在此不作限定。
图2为本申请一实施例提供的通信方法的流程图，如图2所示，本实施例的方法可以应用于MF系统中，但不限于MF系统，本实施例的方法可以包括：
S201、网络设备向终端发送ePDCCH。
本实施例中，网络设备向终端发送SIB，如果本实施例应用于MF系统中，则该SIB称为SIB-MF1，该SIB-MF1主要包含了MF系统的必要的系统信息，用于终端与网络设备完成连接建立和数据传输等。
为了使终端可以接收到SIB，终端需要先接收SIB的调度信息，再根据该SIB的调度信息准确接收到网络设备发送的SIB。因此，关键在于如何使终端可以准确接收到SIB的调度信息，基于此，本实施例中网络设备发送给终端的SIB的调度信息承载在ePDCCH中，网络设备将承载有SIB的ePDCCH发送给终端。相应地，终端接收网络设备发送的该ePDCCH。
S202、所述网络设备根据所述SIB的调度信息向所述终端发送PDSCH。
本实施例中，SIB承载在PDSCH中，SIB的调度信息是调度SIB的信息，因此，为了使ePDCCH中承载的SIB的调度信息与PDSCH承载的SIB相对应，本实施例中的网络设备根据S101中ePDCCH承载的SIB的调度信息，向终端发送承载SIB的 PDSCH。相应地，终端接收网络设备发送的承载SIB的PDSCH。
S203、所述终端根据所述SIB的调度信息，解调所述PDSCH，获得所述SIB。
本实施例中，终端接收到网络设备发送的上述ePDCCH和上述PDSCH之后，需要说明的是，本实施例对终端接收上述ePDCCH和上述PDSCH的顺序不作限定；终端从ePDCCH中获取ePDCCH中承载的SIB的调度信息，根据获取的SIB的调度信息，解调接收的上述PDSCH，可以获得PDSCH中承载的SIB。然后，终端根据SIB所做的处理可以参见现有技术中的相关描述，此处不再赘述。
本实施例中，SIB的调度信息承载在ePDCCH中，而现有技术中SIB的调度信息承载在PDCCH中，由于ePDCCH的聚合等级可以高于PDCCH的最大聚合等级，因此，终端解调ePDCCH的性能更高，即使在信号覆盖质量差的情况下，终端也能正确地解调ePDCCH，从而获得准确的SIB的调度信息，进而成功完成接入网络设备及后续与网络设备的数据传输，提高了通信成功率和效率。
其中，终端需要正确接收到ePDCCH才能准确获得SIB的调度信息，因此，终端在接收ePDCCH之前，需要获知ePDCCH占用的时频资源，根据该ePDCCH占用的时频资源接收网络设备发送的ePDCCH。
可选地，在一种可能的实现方式中，ePDCCH占用的时频资源是预先设定的，即每次网络设备发送ePDCCH时该ePDCCH占用的时频资源不随网络环境而改变，网络设备与终端已预先获知了ePDCCH占用的时频资源，因此网络设备向终端发送ePDCCH前，网络设备无需告知终端该ePDCCH占用的时频资源，节省了网络设备与终端之间的通信开销。
可选地，在另一种可能的实现方式中，ePDCCH占用的时频资源不是预先设定的，网络设备需要告知终端，这样网络设备可以灵活调整ePDCCH占用的时频资源。如图3所示，图3为本申请另一实施例提供的通信方法的流程图，本实施例的方法可以包括：
S301、网络设备向终端发送资源指示信息。
本实施例中，网络设备告知终端ePDCCH占用的时频资源，以使终端根据ePDCCH占用的时频资源正确接收ePDCCH，其中，本实施例中的网络设备通过向资源指示信息，向终端告知ePDCCH占用的时频资源。所述资源指示信息用于指示所述ePDCCH占用的时频资源。
相应地，终端接收网络设备发送的资源指示信息。
S302、网络设备向终端发送ePDCCH。
本实施例中，网络设备向终端发送ePDCCH，其中，S302中发送的ePDCCH占用的时频资源与资源指示信息指示的时频资源相同。
其中，本实施例对S301与S302的执行顺序不做限定。
S303、所述终端根据所述ePDCCH占用的时频资源，接收所述网络设备发送的所述ePDCCH。
本实施例中，终端接收资源指示信息后，根据资源指示信息确定ePDCCH占用的时频资源，并根据该ePDCCH占用的时频资源，确定ePDCCH的位置，并准确接收网络设备发送的ePDCCH。
S304、网络设备根据SIB的调度信息向所述终端发送PDSCH。
S305、所述终端根据所述SIB的调度信息，解调所述PDSCH，获得所述SIB。
本实施例中，S304和S305的具体实现过程可以参见图1所示实施例中的相关描述，此处不再赘述。
本实施例中，网络设备通过向终端发送资源指示信息，来向终端通知ePDCCH占用的时频资源，使得终端更准确地接收ePDCCH。而且SIB的调度信息承载在该ePDCCH中，而现有技术中SIB的调度信息承载在PDCCH中，由于ePDCCH的聚合等级可以高于PDCCH的最大聚合等级，因此，终端解调ePDCCH的性能更高，即使在信号覆盖质量差的情况下，终端也能正确地解调ePDCCH，从而获得准确的SIB的调度信息，进而成功完成接入网络设备及后续与网络设备的数据传输，提高了通信成功率和效率。
在上述各实施例的基础上，可选地，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个PRB对，所述N为大于或等于1的整数。可选地，N可以等于16，在这种情况下，ePDCCH的最大聚合等级为64，与PDCCH的最大聚合等级为8相比，终端对ePDCCH的解调性能更强。需要说明的是，N也可以取其他值，比如8。
可选地，所述ePDCCH占用的频域资源为位于系统带宽边缘的连续频域资源。因为SIB在PDSCH中占用的频域资源是连续的，所以ePDCCH占用的频域资源也最好是连续的，并且只位于系统带宽的边缘，这样有利于SIB的频域资源分配。其中，图4为本申请一实施例提供的ePDCCH占用的频域资源与SIB占用的频域资源的关系示意图，其中，图4以SIB为SIB-MF1为例示出。
如图4中的(a)所示，ePDCCH占用的频域资源为位于系统带宽上边缘的连续频域资源，则系统带宽剩余下部分均可用于SIB的频域资源分配，可供分配给SIB的频域资源增多。如图4中的(b)所示，ePDCCH占用的频域资源为位于系统带宽下边缘的连续频域资源，则系统带宽剩余上部分均可用于SIB的频域资源分配，可供分配给SIB的频域资源增多。如图4中的(c)所示，ePDCCH占用的频域资源为位于系统带宽上边缘的连续频域资源以及系统带宽下边缘的连续频域资源，则系统带宽剩余中间部分均可用于SIB的频域资源分配，相对来说，可以分配给SIB的频域资源较多。而如图4中的(d)所示，ePDCCH占用的频域资源为位于系统带宽中间部分的频域资源，会导致系统带宽剩余的频域资源不连续，则如图中所示的资源1或者资源2不连续，资源1或者资源2可以用于SIB的频域资源分配，但不能将资源1和资源2均用于SIB的频域资源分配，相对来说，可以分配给SIB的频域资源减少，导频SIB的频域资源分配受限。
可选地，系统带宽在频域上可以划分为M个PRB对，即PRB对的总数量为M，按顺序依次为第1个PRB对、第2个PRB对、......、第M个PRB对。如果ePDCCH占用的时频资源为N个PRB对，则ePDCCH可以占用上述第1至第N个PRB对；或者，ePDCCH可以占用上述第M-N+1至第M个PRB对；或者，ePDCCH可以占用上述第1至第N个PRB对以及上述第M-N+1至第M个PRB对。本实施例中，ePDCCH占据了系统带宽边缘的连续频域资源。
可选地，在上述实施例中，上述的资源指示信息携带在MIB中，S301的一种可 能的实现方式：网络设备向终端发送MIB，该MIB包括上述资源指示信息。相应地，终端接收网络设备发送的MIB，根据接收的MIB获取上述资源指示信息。
可选地，现有的MIB具有空闲比特位，因此，上述资源指示信息可以占据MIB的空闲比特位，即利用MIB的空闲比特位来指示ePDCCH占用的时频资源，对MIB的改动影响较小，本实施例的资源指示信息可以占据MIB的至少一个空闲比特位。其中，现有的MF系统中的MIB具有10个空闲比特位，本实施例的资源指示信息例如可以占据MIB的一个或两个空闲比特位。
可选地，在一种实现方式中，利用MIB的1个空闲比特位来指示ePDCCH占用的时频资源，即上述资源指示信息占据MIB中的1个空闲比特位。
以MF系统的MIB为例，MF-MIB的内容例如如下所示：
Figure PCTCN2017095116-appb-000001
本实施例中，在MF-MIB的一个空闲比特位上增加了ePDCCH-SIB-MF1-mf字段，其中，ePDCCH-SIB-MF1-mf字段的解释例如如表1所示，其中表1中示出ePDCCH占用16个PRB对，但本实施例不限于表1中的解释。
表1
Figure PCTCN2017095116-appb-000002
如表1所示，ePDCCH可以配置两个资源集合，即ePDCCH PRB对集合1和ePDCCH PRB对集合2。SIB的控制信息可以只承载在其中一个资源集合上，也可以承载在两个资源集合上。两个集合的PRB对资源位于系统带宽的边缘。N代表系统包含的PRB对总数。
如表1所示，当ePDCCH-SIB-MF1-mf的字段为“0”时，表示ePDCCH占用的PRB对为PRB对0～15，其中PRB对集合1包括的PRB对为PRB对0～7，PRB对集合2包括的PRB对为PRB对8～15。当ePDCCH-SIB-MF1-mf的字段为“0”时，表示ePDCCH占用的PRB对为PRB对84～99，其中PRB对集合1包括的PRB对为PRB对92～99，PRB对集合2包括的PRB对为PRB对84～91(系统带宽N为100PRB)，或者PRB对34～49，其中PRB对集合1包括的PRB对为PRB对42～49，PRB对集合2包括的PRB 对为PRB对34～41(系统带宽N为50PRB)。
在表1所示的例子中，只需要MIB的1个比特位指示ePDCCH占用的时频资源，节省了开销。
可选地，在一种实现方式中，利用MIB的2个空闲比特位来指示ePDCCH占用的时频资源，即上述资源指示信息占据MIB中的2个空闲比特位。
以MF系统的MIB为例，MF-MIB的内容例如如下所示：
Figure PCTCN2017095116-appb-000003
本实施例中，在MF-MIB的两个空闲比特位上增加了ePDCCH-SIB-MF1-mf字段。
其中，ePDCCH-SIB-MF1-mf字段的解释例如如表2所示，但本实施例不限于表2中的解释。
表2
ePDCCH-SIB-MF1-mf字段解释如下：
Figure PCTCN2017095116-appb-000004
如表2所示，可以为ePDCCH配置1个或者2个PRB对资源集合。当ePDCCH-SIB-MF1-mf的字段为“00”时，表示ePDCCH只有一个PRB对资源集合，包括8个PRB对，且ePDCCH占用的PRB对为PRB对0～7。当ePDCCH-SIB-MF1-mf的字段为“01”时，也表示ePDCCH只有一个PRB对资源集合，包括8个PRB对，且ePDCCH占用的PRB对为PRB对92～99(系统带宽为100PRB)，或者PRB对42～49(系统带宽为50PRB)。当ePDCCH-SIB-MF1-mf的字段为“10”或“11”时，表示ePDCCH包含两个PRB对资源集合，占用16个PRB对，与表1的PRB对资源配置相同，不再赘述。
在表2所示的例子中，ePDCCH占用的时频资源的配置存在多种选择，提高了灵 活性。
其中，ePDCCH-SIB-MF1-mf字段的解释例如如表3所示，但本实施例不限于表3中的解释。
表3
Figure PCTCN2017095116-appb-000005
如表3所示，当ePDCCH-SIB-MF1-mf的字段为“00”时，表示ePDCCH只有一个PRB对资源集合，包含8个PRB对，且ePDCCH占用的PRB对为PRB对0～7。当ePDCCH-SIB-MF1-mf的字段为“01”时，表示ePDCCH只有一个PRB对资源集合，包含16个PRB对，且ePDCCH占用的PRB对为PRB对N-8～N-1。当ePDCCH-SIB-MF1-mf的字段为“10”时，表示ePDCCH有2个PRB对资源集合，每个资源集合包括8个PRB对，资源集合1包含的PRB对为PRB对0～7，资源集合2包含的PRB对为PRB对N-8～N-1。
在表3所示的例子中，ePDCCH占用的频域资源可以包含系统带宽的两个边缘位置。
可选地，在上述各实施例的基础上，终端需要确定ePDCCH的传输类型，该传输类型为集中式传输或者分布式传输。
可选地，在一种可能的实现方式中，ePDCCH的传输类型是预先设定的，即每次网络设备发送ePDCCH时该ePDCCH的传输类型不随网络环境而改变，网络设备与终端已预先获知了ePDCCH的传输类型，因此网络设备向终端发送ePDCCH前，网络设备无需告知终端该ePDCCH的传输类型，节省了网络设备与终端之间的通信开销。比如，预先设定用于发送SIB调度信息的ePDCCH的传输类型为分布式传输。
可选地，在另一种可能的实现方式中，ePDCCH的传输类型不是预先设定的，网络设备需要告知终端，这样网络设备可以根据信道质量情况等灵活调整ePDCCH的传输类型，从而保证终端解调ePDCCH的性能。因此，本实施例的网络设备还向终端发送传输类型指示信息，该传输类型指示信息用于指示ePDCCH的传输类型。相应地，终端接收网络设备发送的传输类型指示信息，根据该传输类型指示信息，确定ePDCCH的传输类型，然后终端根据ePDCCH的传输类型接收网络设备发送的上述ePDCCH。
可选地，在上述实施例中，上述的传输类型指示信息包括在MIB中。
可选地，现有的MIB具有空闲比特位，因此，上述传输类型指示信息可以占据MIB的空闲比特位，即利用MIB的空闲比特位来指示ePDCCH的传输类型，对MIB 的改动影响较小，本实施例的传输类型可以占据MIB的至少一个空闲比特位。其中，现有的MF系统中的MIB具有10个空闲比特位，本实施例的传输类型例如可以占据MIB的一个空闲比特位。
可选地，在一种实现方式中，利用MIB的1个空闲比特位来指示ePDCCH的传输类型，即上述传输类型指示信息占据MIB中的1个空闲比特位。
例如：MIB的内容可以将新增如下字段：
ePDCCH-transmissionType-mf ENUMERATED(localized,distributed)
localized指示ePDCCH传输类型为集中式传输，distributed指示ePDCCH传输类型为分布式传输。
本申请一实施例提供一种通信装置，该通信装置可以为网络设备，也可以为网络设备内部的芯片，如图5所示，图5为本申请一实施例提供的通信装置的结构示意图，本实施例的通信装置，可以包括：发送模块11。
发送模块11，用于向终端发送ePDCCH，所述ePDCCH信道承载SIB的调度信息；以及根据所述SIB的调度信息向所述终端发送PDSCH，所述PDSCH承载所述SIB。
可选地，所述ePDCCH占用的频域资源为位于系统带宽边缘的连续频域资源。
可选地，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个PRB对，所述N为大于或等于1的整数。
可选地，所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
可选地，所述发送模块11，还用于向所述终端发送资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源。
可选地，所述发送模块11具体用于：向所述终端发送MIB，所述MIB包括所述资源指示信息。
可选地，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
可选地，所述发送模块11，还用于向所述终端发送传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输。
可选地，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
本实施例以上所述的通信装置，可以用于执行上述各方法实施例中网络设备或其内部芯片执行的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图6为本申请一实施例提供的网络设备的结构示意图，如图6所示，本实施例的网络设备可以包括：收发机21。
在硬件实现上，以上发送模块11可以是本实施例中的收发机21。或者，收发机21包括发射器和接收机，则以上发送模块11可以为收发机21中的发射机。所述收发机21可以包括混频器等必要的射频通信器件。
可选地，本实施例的网络设备还可以包括处理器22。处理器22与收发机21通信连接。处理器22可以控制收发机21。所述处理器22可以包括中央处理单元(Central  Processing Unit，CPU)、数字信号处理器(digital signal processor，DSP)、微控制器(Microcontroller Unit，MCU)、专用集成电路(Application Specific Integrated Circuit，ASIC)或现场可编程逻辑门阵列(Field－Programmable Gate Array，FPGA)中的至少一个。
可选地，本实施例的网络设备还可以包括存储器23，存储器23用于存储程序指令，该程序指令被调用时可以执行上述方案。
所述程序指令可以以软件功能单元的形式实现并能够作为独立的产品销售或使用，所述存储器23可以是任意形式的计算机可读取存储介质。基于这样的理解，本申请的技术方案的全部或部分可以以软件产品的形式体现出来，包括若干指令用以使得一台计算机设备，具体可以是处理器22，来执行本申请各个实施例中网络设备的全部或部分步骤。而前述的计算机可读存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本实施例以上所述的网络设备，可以用于执行本申请上述各方法实施例中网络设备或其内部芯片的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
本申请一实施例提供一种通信装置，该通信装置可以为终端或者终端内部的芯片。如图7所示，图7为本申请一实施例提供的通信装置的结构示意图，本实施例的通信装置可以包括：接收模块31和处理模块32。
接收模块31，用于接收网络设备发送的ePDCCH和PDSCH，所述ePDCCH信道承载SIB的调度信息；所述PDSCH承载所述SIB；
处理模块32，用于根据所述SIB的调度信息，解调所述PDSCH，获得所述SIB。
可选地，所述ePDCCH占用的时频资源为位于系统带宽边缘的连续频域资源。
可选地，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个PRB对，所述N为大于或等于1的整数。
可选地，所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
可选地，所述接收模块31，还用于接收所述网络设备发送的资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源；
所述接收模块31用于接收网络设备发送的ePDCCH，包括：所述接收模块31用于根据所述ePDCCH占用的时频资源，接收所述网络设备发送的所述ePDCCH。
可选地，所述接收模块31用于接收所述网络设备发送的资源指示信息，包括：所述接收模块31用于接收所述网络设备发送的MIB，所述MIB包括所述资源指示信息。
可选地，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
可选地，所述接收模块31，还用于：接收所述网络设备发送的传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输；
所述接收模块31用于接收网络设备发送的ePDCCH，包括：所述接收模块31用于根据所述ePDCCH的传输类型，接收所述网络设备发送的所述ePDCCH。
可选地，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
本实施例以上所述的通信装置，可以用于执行上述各方法实施例中终端或其内部芯片执行的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图8为本申请一实施例提供的终端的结构示意图，如图8所示，本实施例的终端可以包括：处理器41和收发机42。处理器41与收发机42通信连接。
在硬件实现上，以上接收模块31可以是本实施例中的收发机42。或者，收发机42包括发射器和接收器，则以上接收模块31可以是收发机42中的接收器。以上处理模块32可以以硬件形式内嵌于或独立于终端的处理器41中。
所述收发机42可以包括混频器等必要的射频通信器件。所述处理器41可以包括CPU、DSP、MCU、ASIC或FPGA中的至少一个。
可选地，本实施例的终端还可以包括存储器43，存储器43用于存储程序指令，处理器41用于调用存储器43中的程序指令执行上述方案。
所述程序指令可以以软件功能单元的形式实现并能够作为独立的产品销售或使用，所述存储器43可以是任意形式的计算机可读取存储介质。基于这样的理解，本申请的技术方案的全部或部分可以以软件产品的形式体现出来，包括若干指令用以使得一台计算机设备，具体可以是处理器41，来执行本申请各个实施例中终端的全部或部分步骤。而前述的计算机可读存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本实施例以上所述的终端，可以用于执行本申请上述各方法实施例中终端的技术方案，其实现原理和技术效果类似，此处不再赘述。
需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。在本申请的实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
所述集成的模块如果以软件功能模块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(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用 计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。

Claims (29)

  1. 一种通信方法，其特征在于，包括：
    向终端发送增强的物理下行控制信道ePDCCH，所述ePDCCH信道承载系统信息块SIB的调度信息；
    根据所述SIB的调度信息向所述终端发送物理下行共享信道PDSCH，所述PDSCH承载所述SIB。
  2. 根据权利要求1所述的方法，其特征在于，所述ePDCCH占用的频域资源为位于系统带宽边缘的连续频域资源。
  3. 根据权利要求1或2所述的方法，其特征在于，所述ePDCCH占用的时频资源为所述ePDCCH占用的N个物理资源块PRB对，所述N为大于等于1的整数。
  4. 根据权利要求1-3任意一项所述的方法，其特征在于，所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
  5. 根据权利要求1-4任意一项所述的方法，其特征在于，还包括：
    向所述终端发送资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源。
  6. 根据权利要求5所述的方法，其特征在于，所述向终端发送资源指示信息，包括：
    向所述终端发送主信息块MIB，所述MIB包括所述资源指示信息。
  7. 根据权利要求6所述的方法，其特征在于，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
  8. 根据权利要求1-7任意一项所述的方法，其特征在于，还包括：
    向所述终端发送传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输。
  9. 根据权利要求8所述的方法，其特征在于，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
  10. 一种通信方法，其特征在于，包括：
    接收网络设备发送的增强的物理下行控制信道ePDCCH和物理下行共享信道PDSCH，所述ePDCCH信道承载系统信息块SIB的调度信息；所述PDSCH承载所述SIB；
    根据所述SIB的调度信息，解调所述PDSCH，获得所述SIB。
  11. 根据权利要求10所述的方法，其特征在于，所述ePDCCH占用的时频资源为位于系统带宽边缘的连续频域资源；和/或，
    所述ePDCCH占用的时频资源为所述ePDCCH占用的N个物理资源块PRB对，所述N为大于或等于1的整数；和/或，
    所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
  12. 根据权利要求10或11所述的方法，其特征在于，还包括：
    接收所述网络设备发送的资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源；
    所述接收网络设备发送的ePDCCH，包括：根据所述ePDCCH占用的时频资源，接收所述网络设备发送的所述ePDCCH。
  13. 根据权利要求10-12任意一项所述的方法，其特征在于，所述接收所述网络设备发送的资源指示信息，包括：
    接收所述网络设备发送的主信息块MIB，所述MIB包括所述资源指示信息。
  14. 根据权利要求13所述的方法，其特征在于，所述资源指示信息占据所述MIB中的1个空闲比特位或者两个空闲比特位。
  15. 根据权利要求10-14任意一项所述的方法，其特征在于，还包括：
    接收所述网络设备发送的传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输；
    接收网络设备发送的ePDCCH，包括：根据所述ePDCCH的传输类型，接收所述网络设备发送的所述ePDCCH。
  16. 一种通信装置，其特征在于，包括：
    发送模块，用于向终端发送增强的物理下行控制信道ePDCCH，所述ePDCCH信道承载系统信息块SIB的调度信息；以及根据所述SIB的调度信息向所述终端发送物理下行共享信道PDSCH，所述PDSCH承载所述SIB。
  17. 根据权利要求16所述的通信装置，其特征在于，所述ePDCCH占用的频域资源为位于系统带宽边缘的连续频域资源；和/或，
    所述ePDCCH占用的时频资源为所述ePDCCH占用的N个物理资源块PRB对，所述N为大于或等于1的整数；和/或，
    所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
  18. 根据权利要求17所述的通信装置，其特征在于，所述发送模块，还用于向所述终端发送资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源。
  19. 根据权利要求18所述的通信装置，其特征在于，所述发送模块，具体用于：向所述终端发送主信息块MIB，所述MIB包括所述资源指示信息。
  20. 根据权利要求19所述的通信装置，其特征在于，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
  21. 根据权利要求16-20任意一项所述的通信装置，其特征在于，所述发送模块，还用于向所述终端发送传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输。
  22. 根据权利要求21所述的通信装置，其特征在于，所述传输类型指示信息包括在MIB中，且所述传输类型指示信息占据所述MIB中的至少一个空闲比特位。
  23. 一种通信装置，其特征在于，包括：
    接收模块，用于接收网络设备发送的增强的物理下行控制信道ePDCCH和物理下行共享信道PDSCH，所述ePDCCH信道承载系统信息块SIB的调度信息；所述PDSCH承载所述SIB；
    处理模块，用于根据所述SIB的调度信息，解调所述PDSCH，获得所述SIB。
  24. 根据权利要求23所述的通信装置，其特征在于，所述ePDCCH占用的时频资源为位于系统带宽边缘的连续频域资源；和/或，
    所述ePDCCH占用的时频资源为所述ePDCCH占用的N个物理资源块PRB对，所述N为大于或等于1的整数；和/或，
    所述ePDCCH占用的时频资源为第1至第N个PRB对，和/或，第M-N+1至第M个PRB对，所述M为PRB对的总数量。
  25. 根据权利要求23或24所述的通信装置，其特征在于，所述接收模块，还用于接收所述网络设备发送的资源指示信息，所述资源指示信息用于指示所述ePDCCH占用的时频资源；
    所述接收模块用于接收网络设备发送的ePDCCH，包括：所述接收模块用于根据所述ePDCCH占用的时频资源，接收所述网络设备发送的所述ePDCCH。
  26. 根据权利要求25所述的通信装置，其特征在于，所述接收模块用于接收所述网络设备发送的资源指示信息，包括：所述接收模块用于接收所述网络设备发送的主信息块MIB，所述MIB包括所述资源指示信息。
  27. 根据权利要求26所述的通信装置，其特征在于，所述资源指示信息占据所述MIB中的至少一个空闲比特位。
  28. 根据权利要求23-27任意一项所述的通信装置，其特征在于，所述接收模块，还用于：接收所述网络设备发送的传输类型指示信息，所述传输类型指示信息用于指示所述ePDCCH的传输类型，所述ePDCCH的传输类型为集中式传输或分布式传输；
    所述接收模块用于接收网络设备发送的ePDCCH，包括：所述接收模块用于根据所述ePDCCH的传输类型，接收所述网络设备发送的所述ePDCCH。
  29. 一种计算机可读存储介质，其特征在于，当存储介质中的指令由通信装置的处理器执行时，使得通信装置能够实现如权利要求1-15任意一项所述的通信方法。
PCT/CN2017/095116 2017-07-31 2017-07-31 通信方法和装置 WO2019023833A1 (zh)

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