WO2018058445A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2018058445A1
WO2018058445A1 PCT/CN2016/100853 CN2016100853W WO2018058445A1 WO 2018058445 A1 WO2018058445 A1 WO 2018058445A1 CN 2016100853 W CN2016100853 W CN 2016100853W WO 2018058445 A1 WO2018058445 A1 WO 2018058445A1
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WO
WIPO (PCT)
Prior art keywords
indication information
duration
discovery signal
extended discovery
pbch
Prior art date
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PCT/CN2016/100853
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English (en)
Chinese (zh)
Inventor
魏冬冬
张长
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.)
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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 CN201680089701.4A priority Critical patent/CN109792585B/zh
Priority to PCT/CN2016/100853 priority patent/WO2018058445A1/fr
Publication of WO2018058445A1 publication Critical patent/WO2018058445A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a communication method and apparatus.
  • MBMS Multimedia Broadcast Multicast Service
  • MBMS refers to a point-to-multipoint service in which a data source simultaneously transmits data to multiple users, and realizes network resource sharing, including core network and access network resource sharing, especially air interface resources.
  • each radio frame includes 10 subframes, each subframe has a duration of 1 ms, and the subframe is used as a basic scheduling time unit.
  • the unicast service and the broadcast service are multiplexed in a time-division multiplex manner, that is, the unicast service and the broadcast service occupy different subframes, because the network needs to support the unicast service and the multimedia broadcast service (hereinafter referred to as the broadcast service).
  • the subframe carrying the broadcast service is referred to as an MBSFN (Multimedia Broadcast multicast service Single Frequency Network) subframe.
  • MBSFN Multimedia Broadcast multicast service Single Frequency Network
  • the LTE release-14 is discussed for the MBMS enhancement.
  • One of the objectives of the MBMS enhancement is to increase the number of MBSFN subframes in a radio frame.
  • the carrier can be configured as a 100% MBSFN subframe. .
  • the carrier is configured as a 100% MBSFN subframe
  • it is necessary to periodically use at least one subframe to carry an extended discovery signal such as a synchronization signal, a broadcast message, a system message block, or the like.
  • the number of subframes that specifically transmit the extended discovery signal needs to be determined according to the system bandwidth, so the duration of the extended discovery signal is different under different system bandwidths.
  • the carrier is configured as a 100% MBSFN subframe, there is no clear solution for how to notify the terminal of the duration of the extended discovery signal.
  • the embodiment of the present application provides a communication method and apparatus, to implement, in a case where a carrier is configured as a 100% MBSFN subframe, to notify a terminal of a duration of transmitting an extended discovery signal.
  • an embodiment of the present application provides a communication method, including:
  • the terminal determines the system bandwidth according to the received physical broadcast channel PBCH;
  • the terminal determines a duration of the extended discovery signal according to a mapping relationship between the system bandwidth and a system bandwidth and a duration of the extended discovery signal.
  • the terminal After the terminal determines the system bandwidth, the terminal can determine the duration of the extended discovery signal according to the mapping between the system bandwidth and the duration of the extended discovery signal, thereby implementing the carrier configuration as 100% MBSFN. In the case of a frame, the duration of the extended discovery signal is transmitted to the terminal through the system bandwidth.
  • the PBCH includes period indication information.
  • the method further includes:
  • the terminal determines a transmission period of the extended discovery signal according to the period indication information.
  • the period indication information occupies N bits in the reserved bits of the PBCH, where N is a positive integer greater than 0.
  • the method further includes:
  • the extended discovery signal is transmitted in a non-MBSFN subframe in a transmission period indicated by the period indication information.
  • the extended discovery signal includes one or more of the following:
  • an embodiment of the present application provides a communications apparatus, where the apparatus includes:
  • a transceiver unit configured to determine a system bandwidth according to the received physical broadcast channel PBCH;
  • a processing unit configured to determine a duration of the extended discovery signal according to a mapping relationship between the system bandwidth and a duration of the system bandwidth and the extended discovery signal.
  • the PBCH includes period indication information.
  • the processing unit is further configured to:
  • the period indication information occupies N bits in the reserved bits of the PBCH, where N is a positive integer greater than 0.
  • processing unit is further configured to:
  • the extended discovery signal is transmitted in a non-MBSFN subframe in a transmission period indicated by the period indication information.
  • the extended discovery signal includes one or more of the following:
  • an embodiment of the present application provides a communication device, where the device includes: a transceiver, a processor, and a memory;
  • the memory is for storing computer instructions
  • the transceiver is configured to determine a system bandwidth according to the received physical broadcast channel PBCH;
  • the processor is configured to read a computer instruction stored in the memory to determine a duration of the extended discovery signal according to a mapping relationship between the system bandwidth and a duration of the system bandwidth and the extended discovery signal.
  • the PBCH includes period indication information.
  • the processor is further configured to:
  • the period indication information occupies N bits in the reserved bits of the PBCH, where N is a positive integer greater than 0.
  • the processor is further configured to:
  • the extended discovery signal is transmitted in a non-MBSFN subframe in a transmission period indicated by the period indication information.
  • the extended discovery signal includes one or more of the following:
  • an embodiment of the present application provides a communication method, where the method includes:
  • the access network device determines the duration indication information of the extended transmission signal
  • the access network device sends the duration indication information to the terminal.
  • the access network device sends the duration indication information to the terminal, thereby indicating to the terminal the duration of the extended discovery signal, thereby implementing the carrier configuration as 100% MBSFN.
  • the terminal is enabled to determine the duration of the extended discovery signal.
  • the access network device sends the duration indication information to the terminal, including:
  • the access network device sends the duration indication information to the terminal through a physical broadcast channel PBCH.
  • the access network device sends the duration indication information to the terminal by using the PBCH, including:
  • the access network device sends the duration indication information by M bits in the reserved bits of the PBCH, where M is a positive integer greater than 0; or
  • the access network device sends the duration indication information by using a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the method further includes:
  • the access network device sends periodic indication information to the terminal through the PBCH; the period indication information is used to indicate a sending period of the extended discovery signal.
  • an embodiment of the present application provides a communications apparatus, including:
  • a processing unit configured to determine duration indication information of the extended transmission signal
  • a transceiver unit configured to send the duration indication information to the terminal.
  • the transceiver unit is specifically configured to:
  • the duration indicator information is sent to the terminal through the physical broadcast channel PBCH.
  • the transceiver unit is specifically configured to:
  • the duration indicator information is sent by a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the transceiver unit is further configured to:
  • the period indication information is sent to the terminal by using the PBCH, where the period indication information is used to indicate a transmission period of the extended discovery signal.
  • an embodiment of the present application provides a communications apparatus, including:
  • a processor configured to determine duration indication information of the extended transmission signal
  • a transceiver configured to send the duration indication information to the terminal.
  • the transceiver is specifically configured to:
  • the duration indicator information is sent to the terminal through the physical broadcast channel PBCH.
  • the transceiver is specifically configured to:
  • the duration indicator information is sent by a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the transceiver is further configured to:
  • the period indication information is sent to the terminal by using the PBCH, where the period indication information is used to indicate a transmission period of the extended discovery signal.
  • the embodiment of the present application provides a communication method, where the method includes:
  • the terminal determines, according to the duration indication information, a duration of the extended discovery signal.
  • the terminal receives the duration indication information sent by the access network device, including:
  • the terminal receives the duration indication information through a physical broadcast channel PBCH.
  • the terminal receives the duration indication information by using the PBCH, including:
  • the terminal receives the duration indication information by M bits in the reserved bits of the PBCH, where M is a positive integer greater than 0; or
  • the terminal receives the duration indication information by using a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the method further includes:
  • an embodiment of the present application provides a communications apparatus, including:
  • a transceiver unit configured to receive duration indication information sent by the access network device
  • a processing unit configured to determine, according to the duration duration indication information, a duration of the extended discovery signal.
  • the transceiver unit is specifically configured to:
  • the duration indicator information is received through a physical broadcast channel PBCH.
  • the transceiver unit is specifically configured to:
  • the duration indicator information is received by a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the transceiver unit is further configured to:
  • the period indication information is used to indicate a sending period of the extended discovery signal.
  • the embodiment of the present application provides a communications apparatus, including:
  • the transceiver is configured to receive the duration indication information sent by the access network device;
  • a processor configured to determine, according to the duration indicator information, a duration of the extended discovery signal.
  • the transceiver unit is specifically configured to:
  • the duration indicator information is received through a physical broadcast channel PBCH.
  • the transceiver is specifically configured to:
  • the duration indicator information is received by a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the transceiver is further configured to:
  • the period indication information is used to indicate a sending period of the extended discovery signal.
  • the embodiment of the present application provides a communication method, where the method includes:
  • the access network device determines protection bandwidth indication information; the protection bandwidth indication information indicates wireless The configuration of the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe of the frame;
  • the access network device sends the protection bandwidth indication information to the terminal through a physical broadcast channel PBCH.
  • the access network device indicates, by using the protection bandwidth indication information, whether the fixed protection bandwidth exists between the non-multicast multicast transmission resource and the multicast multicast transmission resource, or indicates the non-multicast multicast transmission resource and
  • the size of the protection bandwidth between multicast multicast transmission resources enables the terminal to receive signals at an accurate resource location.
  • the access network device sends the protection bandwidth indication information to the terminal by using the PBCH, including:
  • the access network device sends the protection bandwidth indication information by K bits in the reserved bits of the PBCH, where K is a positive integer greater than 0; or
  • the access network device sends the protection bandwidth indication information by using a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the protection bandwidth indication information indicates whether a fixed protection bandwidth exists between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe;
  • the protection bandwidth indication information indicates a size of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • an embodiment of the present application provides a communications apparatus, where the apparatus includes:
  • a processing unit configured to determine protection bandwidth indication information; the protection bandwidth indication information indicates a configuration of a protection bandwidth between a non-multicast multicast transmission resource and a multicast multicast transmission resource in a target subframe of the radio frame;
  • a transceiver unit configured to send the protection bandwidth indication information to the terminal by using a physical broadcast channel PBCH.
  • the transceiver unit is specifically configured to:
  • the protection bandwidth indication information is sent by a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the protection bandwidth indication information indicates whether a fixed protection bandwidth exists between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe;
  • the protection bandwidth indication information indicates a size of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the embodiment of the present application provides a communication device, where the device includes:
  • a processor configured to determine protection bandwidth indication information, where the protection bandwidth indication information indicates a configuration of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe of the radio frame;
  • a transceiver configured to send the protection bandwidth indication information to the terminal by using a physical broadcast channel PBCH.
  • the transceiver is specifically configured to:
  • the protection bandwidth indication information is sent by a preset field of the physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the protection bandwidth indication information indicates whether a fixed protection bandwidth exists between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe;
  • the protection bandwidth indication information indicates a size of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the embodiment of the present application provides a communication method, where the method includes:
  • the terminal determines, according to the protection bandwidth indication information, a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the terminal determines, by using the protection bandwidth indication information, whether there is a fixed protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource, or determines the non-multicast multicast transmission resource.
  • the size of the protection bandwidth between the source and multicast multicast transmission resources enables signal reception at an accurate resource location.
  • the terminal receives the protection bandwidth indication information by using a PBCH, including:
  • the terminal receives the protection bandwidth indication information by using a preset field of a physical hybrid automatic retransmission indication channel PHICH in the PBCH.
  • the protection bandwidth indication information indicates whether a fixed protection bandwidth exists between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe;
  • the protection bandwidth indication information indicates a size of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the embodiment of the present application provides a communications apparatus, including:
  • a transceiver unit configured to receive, by using a physical broadcast channel PBCH, protection bandwidth indication information sent by an access network device;
  • a processing unit configured to determine, according to the protection bandwidth indication information, a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the transceiver unit is specifically configured to:
  • the protection bandwidth indication information indicates whether a fixed protection bandwidth exists between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe;
  • the protection bandwidth indication information indicates a size of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the embodiment of the present application provides a communications apparatus, including:
  • a transceiver configured to receive, by using a physical broadcast channel PBCH, a protection bandwidth sent by an access network device Indication information;
  • a processor configured to determine, according to the protection bandwidth indication information, a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the transceiver is specifically configured to:
  • the protection bandwidth indication information indicates whether a fixed protection bandwidth exists between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe;
  • the protection bandwidth indication information indicates a size of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied;
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • a terminal also called a User Equipment (UE) is a device that provides voice and/or data connectivity to a user, for example, a handheld device with a wireless connection function, an in-vehicle device, and the like.
  • UE User Equipment
  • Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • MIDs mobile internet devices
  • wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • An access network device also referred to as a base station, is a device that accesses a terminal to a wireless network, including but not limited to: an evolved Node B (eNB), a radio network controller (radio network) Controller, RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base Station (for example, Home evolved NodeB, or Home Node B, HNB), BaseBand Unit (BBU).
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • Home Base Station for example, Home evolved NodeB, or Home Node B, HNB
  • BBU BaseBand Unit
  • AP Wifi Access Point
  • a subframe that carries a broadcast multicast service in a radio frame is referred to as an MBSFN subframe
  • a subframe that does not carry a broadcast multicast service is referred to as a non-MBSFN subframe.
  • a resource carrying a multicast multicast service in one subframe is referred to as a multicast multicast transmission resource
  • a resource not carrying a multicast multicast service is referred to as a non-multicast multicast transmission resource.
  • the extended discovery signal includes one or more of the following:
  • the extended discovery signal is not limited to the above signals, and may also include other signals, which are not illustrated one by one.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied. As shown in Figure 1, the description of each network element and interface in Figure 1 is as follows:
  • the MME is a key control node in the LTE (Long Term Evolution) system. It belongs to the core network element and is mainly responsible for the letter.
  • the processing part, the control plane function includes access control, mobility management, attach and detach, session management functions, and gateway selection.
  • the S-GW is an important network element of the core network in LTE. It is mainly responsible for the user plane function of user data forwarding, that is, routing and forwarding of data packets under the control of the MME.
  • the eNB may be a base station in LTE, and is mainly responsible for radio resource management, QoS (Quality of Service) management, data compression, and encryption on the air interface side. To the core network side, the eNB is mainly responsible for forwarding control plane signaling to the MME and forwarding user plane service data to the S-GW.
  • QoS Quality of Service
  • the UE may have the function of accessing the network side through the access network device, such as an eNB, in the LTE, or may have the wireless transmission between the access device and the access device in other networks.
  • the UE can perform voice or data service transmission.
  • S1 interface is a standard interface between the eNB and the core network.
  • the eNB is connected to the MME through the S1-MME interface, and is used for control signaling transmission; the eNB is connected to the S-GW through the S1-U interface, and is used for transmission of user data.
  • the S1-MME interface and the S1-U interface are collectively referred to as an S1 interface.
  • the X2 interface is a standard interface between the eNB and the eNB, and is used to implement interworking between the base stations.
  • the Uu interface is a radio interface between the UE and the base station, and the UE accesses the network through the Uu interface.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • the method may include the following steps:
  • Step 201 The terminal determines the system bandwidth according to the received physical broadcast channel.
  • Step 202 The terminal determines a duration of the extended discovery signal according to a mapping relationship between the system bandwidth and a duration of the system bandwidth and the extended discovery signal.
  • the terminal may determine the system bandwidth according to the system bandwidth indication in the physical broadcast channel (PBCH).
  • PBCH physical broadcast channel
  • the terminal may be a terminal in an idle state or a terminal that is not connected to the network.
  • the terminal may determine the duration of the extended discovery signal in the mapping relationship and the system bandwidth mapping according to the mapping relationship between the system bandwidth and the duration of the extended discovery signal.
  • the extension finds the duration of the signal.
  • the extended discovery signal can be used to indicate that the terminal accesses the network and acquires system messages and the like.
  • the extended discovery signal includes a primary synchronization signal, a secondary synchronization signal, and a primary information block
  • the primary synchronization signal, the secondary synchronization signal, and the primary information block may be located in the extended discovery signal.
  • the embodiment of the present application does not limit the transmission in the first subframe of the duration, or a plurality of subframes that are specified in advance.
  • the extended discovery signal may be transmitted in a non-MBSFN subframe in the extended discovery signal transmission period.
  • mapping relationship between the system bandwidth and the duration of the extended discovery signal may be pre-agreed by the terminal and the access network device; the mapping relationship between the system bandwidth and the duration of the extended discovery signal may also be pre-defined in the communication protocol.
  • the embodiment is not limited thereto.
  • mapping between the system bandwidth and the duration of the extended discovery signal can take many forms.
  • the mapping relationship between the system bandwidth and the duration of the extended discovery signal can be as shown in Table 1.
  • the duration of the extended discovery signal is determined to be one subframe duration according to the determined system bandwidth and the mapping relationship in Table 1.
  • Table 1 is only an example, and the mapping relationship between the system bandwidth and the duration of the extended discovery signal may have other forms.
  • mapping relationship between the system bandwidth and the duration of the extended discovery signal can be as shown in Table 2.
  • Table 2 is only an example, and the mapping relationship between the system bandwidth and the duration of the extended discovery signal may have other forms, and details are not described herein again.
  • the duration of the extended discovery signal may be determined according to the mapping relationship between the system bandwidth and the duration of the system bandwidth and the extended discovery signal, thereby implementing the carrier configuration as 100% MBSFN.
  • the duration of the extended discovery signal is transmitted to the terminal through the system bandwidth.
  • the access network device may further send the period indication information to the terminal by using the PBCH, where the period indication information is used to indicate a sending period of the extended discovery signal.
  • the transmission period of the extended discovery signal may be: 10ms, 40ms, 80ms, 160ms, etc., which is determined according to actual conditions, and details are not described herein again.
  • the period indication information occupies N bits in the reserved bits of the PBCH, and N is a positive integer greater than 0.
  • N is a positive integer greater than 0.
  • the period indication information occupies 1 bit of the reserved bits of the PBCH.
  • the value of the bit occupied by the period indication information is 1, it indicates that the transmission period of the extended discovery signal is 10 ms; when the value of the bit occupied by the period indication information is 0, it indicates that the transmission period of the extended discovery signal is 40 ms.
  • period indication information may have other forms, and details are not described herein again.
  • the N-bits occupied by the periodic indication information in the reserved bits of the PBCH need to be pre-arranged by the access network device and the terminal, and the manner of the specific agreement is not limited in this embodiment.
  • the terminal may determine the transmission period of the extended discovery signal according to the period indication information, so as to receive the extended discovery signal more accurately.
  • the subframe for the MBSFN transmission in the period may be determined according to the period indication information and the duration of the extended discovery signal, thereby determining the MBSFN sub- Information such as the transmission time of the frame and location information.
  • the access network device may also directly indicate to the terminal between the durations of the extended discovery signals.
  • FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • the method may include the following steps:
  • Step 301 The access network device determines duration indication information of the extended transmission signal.
  • Step 302 The access network device sends the duration indication information to the terminal.
  • Step 303 The terminal receives the duration indication information sent by the access network device.
  • Step 304 The terminal determines, according to the duration indication information, a duration of the extended discovery signal.
  • the access network device may determine the duration indicator information according to the duration of the extended transmission signal.
  • the duration indicator may occupy M bits, and M is a positive integer greater than 0.
  • the duration of each of the M bits occupied by the indication information may be uniquely associated with the duration of an extended transmission signal, and the terminal is based on the duration.
  • the value of the M bits occupied by the indication information may determine the duration of the extended transmission signal, so that the duration of the extended transmission signal may be indicated by the duration indication information.
  • the correspondence between the value of the M bits occupied by the duration indication information and the duration of the extended transmission signal may be pre-agreed by the access network device and the terminal.
  • the access network device may send the duration indication information to the terminal through the PBCH.
  • the access network device may send the duration indication information by using M bits in the reserved bits of the PBCH.
  • each value of the M bits occupied by the duration indication information may uniquely correspond to the duration of an extended transmission signal.
  • the duration indicator indicates that the information occupies 2 bits, and the mapping relationship between each value of the 2 bits occupied by the duration indication information and the duration of the extended discovery signal can be as shown in Table 3.
  • the terminal determines that the value of the 2 bits occupied by the duration indication information is 01, it may be determined that the duration of the extended discovery signal is 2 durations of the subframe.
  • Table 3 is only an example, and the mapping relationship between the duration of the bit indicating that the information is occupied and the duration of the extended discovery signal may be other forms.
  • the M duration of the information indicating that the information is in the reserved bits of the PBCH needs to be pre-arranged by the access network device and the terminal.
  • the access network device may send the duration indication information by using a preset field of a Physical Hybrid ARQ Indicator Channel (PHICH) in the PBCH.
  • PHICH Physical Hybrid ARQ Indicator Channel
  • the preset field is a field existing in the PHICH, and the access network device indicates the duration of the extended discovery signal to the terminal by redefining the existing field in the PHICH as the duration indication information. For example, an access network device can redefine the phich-Resourc field in the PHICH to persistent The duration indicates the information. Of course, the access network device can also redefine other fields in the PHICH into persistent duration indication information, which are not illustrated one by one.
  • the access network device may further send the period indication information to the terminal by using the PBCH, where the period indication information is used to indicate a sending period of the extended discovery signal.
  • the access network device indicates the transmission period of the extended discovery signal by transmitting the period indication information to the terminal, thereby improving the efficiency of the terminal receiving the extended discovery signal.
  • the transmission period of the extended discovery signal may be: 10ms, 40ms, 80ms, 160ms, etc., which is determined according to actual conditions, and details are not described herein again.
  • the terminal may receive the duration indication information sent by the access network device through the PBCH. Specifically, the terminal may receive the duration indication information by using M bits in the reserved bits of the PBCH. The terminal may further receive the duration indication information by using a preset field of the PHICH in the PBCH, where Referring to the previous description, it will not be described here.
  • the terminal can receive the continuous duration indication information sent by the access network device, and
  • the period indication information sent by the access network device may also be received through the PBCH, thereby determining a transmission period of the extended discovery signal.
  • the access network device indicates the duration of the extended discovery signal to the terminal by transmitting the duration indication information to the terminal, so that the terminal can determine the extended discovery in the case that the carrier is configured as a 100% MBSFN subframe.
  • the duration of the signal is configured as a 100% MBSFN subframe.
  • the subframe for the MBSFN transmission in the period may be determined according to the period indication information and the duration of the extended discovery signal, thereby determining the MBSFN sub- Information such as the transmission time of the frame and location information.
  • a signal of a synchronization signal, a broadcast signal, or the like can be transmitted by using a prior art scheme. For example, at least 6 resource blocks (RBs) between subframe 0 and subframe 5 in the radio frame are transmitted by using an existing scheme, and the remaining RBs are used for multicast multicast service transmission; all RBs in the remaining subframes Used for many Broadcast multicast service transmission (called multicast multicast transmission resource).
  • RBs resource blocks
  • the non-multicast multicast transmission resource and the multicast multicast transmission resource may adopt the same subcarrier interval/Cyclic Prefix (CP) length, or may use different subcarriers. Interval / CP length.
  • CP subcarrier interval/Cyclic Prefix
  • the non-multicast group No protection bandwidth is required between broadcast transmission resources and multicast multicast transmission resources; non-multicast multicast transmission resources and multicast multicast in subframes including non-multicast multicast transmission resources and multicast multicast transmission resources.
  • the protection bandwidth is required between the non-multicast multicast transmission resource and the multicast multicast transmission resource.
  • the terminal cannot determine whether there is protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource, or cannot determine the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource. Size, so that signal reception cannot be performed at an accurate resource location.
  • FIG. 4 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • the method may include the following steps:
  • Step 401 The access network device determines protection bandwidth indication information.
  • the protection bandwidth indication information indicates a configuration of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe of the radio frame.
  • the target subframe is a subframe including a non-multicast multicast transmission resource and a multicast multicast transmission resource in the radio frame.
  • Step 402 The access network device sends the protection bandwidth indication information to the terminal through the PBCH.
  • Step 403 The terminal receives the protection bandwidth indication information sent by the access network device by using the PBCH.
  • Step 404 The terminal determines, according to the protection bandwidth indication information, a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • step 401 when there is a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe, there are two possible ways to configure the protection bandwidth.
  • the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe is large.
  • the fixed-protection bandwidth is small; in another possible mode, the size of the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe is not fixed, and is configured according to the actual situation, which is flexible protection. bandwidth.
  • the protection bandwidth indication information may indicate the non-multicast group in the target subframe. Whether there is a fixed protection bandwidth between the broadcast transmission resource and the multicast multicast transmission resource; when the size of the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe is not fixed, the protection bandwidth The indication information may indicate the size of the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the access network device may send the protection bandwidth indication information to the terminal by using the following two implementations:
  • the access network device sends the protection bandwidth indication information by using K bits in the reserved bits of the PBCH, where K is a positive integer greater than 0.
  • K is a positive integer greater than 0. The value of K is determined according to the actual situation and will not be described here.
  • the size of the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe is a fixed protection bandwidth.
  • the protection bandwidth indication information occupies one bit of the reserved bits of the PBCH, and the mapping relationship between each value of the one bit occupied by the protection bandwidth indication information and the size of the protection bandwidth may be as shown in Table 4.
  • the protection bandwidth may be 0.
  • the protection bandwidth may be fixed. Bandwidth mapping.
  • the access network device passes the preset field of the PHICH in the PBCH. Sending the protection bandwidth indication information.
  • the preset field is a field existing in the PHICH, and the access network device indicates the size of the protection bandwidth to the terminal by redefining the existing field in the PHICH as the protection bandwidth indication information. For example, the access network device may redefine the phich-Resourc field in the PHICH as protection bandwidth indication information. Of course, the access network device can also redefine other fields in the PHICH as protection bandwidth indication information, which are not illustrated one by one.
  • the size of the protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe is not fixed.
  • the protection bandwidth indication information is a preset field of the PHICH, and the mapping relationship between each value of the protection bandwidth indication information and the size of the protection bandwidth may be as shown in Table 5.
  • the terminal may receive the protection bandwidth indication information by using K bits in the reserved bits of the PBCH; the terminal may also receive the protection bandwidth indication information by using a preset field of the PHICH in the PBCH. .
  • the terminal determines whether there is a fixed protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource by using the protection bandwidth indication information, or determines protection between the non-multicast multicast transmission resource and the multicast multicast transmission resource.
  • the size of the bandwidth allows for signal reception at accurate resource locations.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG. 2 .
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes:
  • the transceiver unit 501 is configured to determine a system bandwidth according to the received physical broadcast channel PBCH;
  • the processing unit 502 is configured to determine, according to the system bandwidth and a mapping relationship between the system bandwidth and the duration of the extended discovery signal, the duration of the extended discovery signal.
  • the PBCH includes period indication information.
  • the processing unit 502 is further configured to:
  • the period indication information occupies N bits in the reserved bits of the PBCH, where N is a positive integer greater than 0.
  • processing unit 502 yuan is further used for:
  • the extended discovery signal is transmitted in a non-MBSFN subframe in a transmission period indicated by the period indication information.
  • the extended discovery signal includes one or more of the following:
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG. 2 .
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes: a transceiver 601, a processor 602, and a memory 603;
  • the memory 603 is configured to store computer instructions
  • the transceiver 601 is configured to determine a system bandwidth according to the received physical broadcast channel PBCH;
  • the processor 602 is configured to read a computer instruction stored in the memory: according to The mapping between the system bandwidth and the duration of the system bandwidth and the extended discovery signal determines the duration of the extended discovery signal.
  • the PBCH includes period indication information.
  • the processor 602 is further configured to:
  • the period indication information occupies N bits in the reserved bits of the PBCH, where N is a positive integer greater than 0.
  • processor 602 is further configured to:
  • the extended discovery signal is transmitted in a non-MBSFN subframe in a transmission period indicated by the period indication information.
  • the extended discovery signal includes one or more of the following:
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes:
  • the processing unit 701 is configured to determine duration duration indication information of the extended transmission signal.
  • the transceiver unit 702 is configured to send the duration indication information to the terminal.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes: a transceiver 801, a processor 802, and a memory 803;
  • the memory 803 is configured to store computer instructions
  • the processor 802 is configured to determine duration indication information of the extended transmission signal.
  • the transceiver 801 is configured to send the duration indication information to the terminal.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes:
  • the transceiver unit 901 is configured to receive duration indication information sent by the access network device.
  • the processing unit 902 is configured to determine, according to the duration indicator information, a duration of the extended discovery signal.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes: a transceiver 1001, a processor 1002, and a memory 1003.
  • the memory 1003 is configured to store computer instructions
  • the transceiver 1001 is configured to receive duration indication information sent by the access network device.
  • the processor 1002 is configured to determine, according to the duration indicator information, a duration of the extended discovery signal.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the apparatus includes:
  • the processing unit 1101 is configured to determine protection bandwidth indication information, where the protection bandwidth indication information indicates a configuration of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe of the radio frame;
  • the transceiver unit 1102 is configured to send the protection bandwidth indication information to the terminal by using a physical broadcast channel PBCH.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes: a transceiver 1201, a processor 1202, and a memory 1203.
  • the memory 1203 is configured to store computer instructions
  • the processor 1202 is configured to determine protection bandwidth indication information, where the protection bandwidth indication information indicates a configuration of a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe of the radio frame;
  • the transceiver 1201 is configured to send the protection bandwidth indication information to the terminal by using a physical broadcast channel PBCH.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG. 5.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the apparatus includes:
  • the transceiver unit 1301 is configured to receive, by using a physical broadcast channel PBCH, protection bandwidth indication information sent by the access network device;
  • the processing unit 1302 is configured to determine, according to the protection bandwidth indication information, a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • the embodiment of the present application further provides a communication device, which can perform the method flow described in FIG. 5.
  • the embodiment of the present application provides a schematic structural diagram of a communication device.
  • the device includes: a transceiver 1401, a processor 1402, and a memory 1403;
  • the memory 1403 is configured to store computer instructions
  • the transceiver 1401 is configured to receive, by using a physical broadcast channel PBCH, protection bandwidth indication information sent by the access network device;
  • the processor 1402 is configured to determine, according to the protection bandwidth indication information, a protection bandwidth between the non-multicast multicast transmission resource and the multicast multicast transmission resource in the target subframe.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer usable memory channels (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • the computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine instruction for generating instructions executed by a processor of a computer or other programmable data processing device Means for implementing the functions specified in one or more flows of the flowchart or in a block or blocks of the flowchart.
  • These computer program instructions can also be stored in a bootable computer or other programmable data processing device.
  • a computer readable memory that operates in a particular manner, causing instructions stored in the computer readable memory to produce an article of manufacture comprising an instruction device implemented in one or more flows and/or block diagrams of the flowchart The function specified in the box or in multiple boxes.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil de communication. Le procédé comprend les étapes au cours desquelles : un terminal détermine une bande passante d'un système en fonction d'un canal physique de diffusion (PBCH) reçu (201) ; et le terminal détermine la durée d'un signal de découverte étendu en fonction de la bande passante du système et d'une relation de correspondance entre la bande passante du système et la durée du signal de découverte étendu (202).
PCT/CN2016/100853 2016-09-29 2016-09-29 Procédé et appareil de communication WO2018058445A1 (fr)

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PCT/CN2016/100853 WO2018058445A1 (fr) 2016-09-29 2016-09-29 Procédé et appareil de communication

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PCT/CN2016/100853 WO2018058445A1 (fr) 2016-09-29 2016-09-29 Procédé et appareil de communication

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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN101998281A (zh) * 2009-08-11 2011-03-30 大唐移动通信设备有限公司 一种传输数据的方法、系统和装置
CN102045640A (zh) * 2009-10-12 2011-05-04 中兴通讯股份有限公司 Mbms通知机制配置和指示信息的承载发送方法及系统
CN102083006A (zh) * 2011-01-17 2011-06-01 大唐移动通信设备有限公司 一种数据传输方法、装置及系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3806365B1 (fr) * 2007-08-14 2022-10-05 Lg Electronics Inc. Procédé d'acquisition d'informations sur des régions de ressources pour phich

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101998281A (zh) * 2009-08-11 2011-03-30 大唐移动通信设备有限公司 一种传输数据的方法、系统和装置
CN102045640A (zh) * 2009-10-12 2011-05-04 中兴通讯股份有限公司 Mbms通知机制配置和指示信息的承载发送方法及系统
CN102083006A (zh) * 2011-01-17 2011-06-01 大唐移动通信设备有限公司 一种数据传输方法、装置及系统

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