WO2020199023A1 - 一种通信方法及设备 - Google Patents
一种通信方法及设备 Download PDFInfo
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- WO2020199023A1 WO2020199023A1 PCT/CN2019/080645 CN2019080645W WO2020199023A1 WO 2020199023 A1 WO2020199023 A1 WO 2020199023A1 CN 2019080645 W CN2019080645 W CN 2019080645W WO 2020199023 A1 WO2020199023 A1 WO 2020199023A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/50—Connection management for emergency connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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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
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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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
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
- H04W52/58—Format of the TPC bits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
- H04W68/005—Transmission of information for alerting of incoming communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/18—Interfaces between hierarchically similar devices between terminal devices
Definitions
- This application relates to the field of communication technology, and in particular to a communication method and device.
- the fourth-generation communication system long term evolution-advanced (LTE-A) will continue to provide wireless communication services for its user equipment (UE) in the short term (or even long term).
- enhanced machine type communication (eMTC) systems and other evolutionary systems for example, Further eMTC (FeMTC), Even Further eMTC (eFeMTC), additional MTC (AMTC)
- eMTC enhanced machine type communication
- FeMTC Further eMTC
- eFeMTC Even Further eMTC
- ATC additional MTC
- the system, eMTC system and other evolved systems work in the LTE system and in the LTE frequency band.
- the working bandwidth of eMTC terminals may usually be small and smaller than the working bandwidth of the LTE system.
- the working bandwidth of eMTC terminals may be a narrowband NB, and an NB includes 6 consecutive physical resource blocks (physical resource blocks). , PRB), a PRB includes 12 subcarriers (subcarrier, SC). Due to its low power consumption, long sleep and other characteristics, the battery life of eMTC UE is long, which is expected to reach about 10 years.
- emergency information such as earthquake and tsunami warning system (ETWS) information, commercial mobile alert service (CMAS) information, used to indicate system information modification
- EWS earthquake and tsunami warning system
- CMAS commercial mobile alert service
- the eMTC terminal device does not update the system message very frequently. Therefore, when an emergency message is encountered, the base station informs the terminal device through a paging message or direct instruction information.
- the paging message or direct indication information is carried in the type2 public search space, and the eMTC terminal does not monitor the search space in the connected state, so the connected eMTC terminal cannot receive emergency message notifications.
- One possible solution is to allow eMTC terminal devices in the connected state to monitor both the type2 search space and the user-specific search space at the same time, that is, to allow the eMTC terminal devices to receive paging messages or direct indication information in the connected state.
- the paging message and the user-specific search space may be located on different narrowbands, the eMTC terminal device needs to monitor two narrowbands at the same time, which seriously increases user complexity and user power consumption.
- the embodiments of the present application provide a communication method and device, which are used to solve the problem of high complexity and high power consumption when receiving an emergency message notification in a connected eMTC terminal device in the prior art.
- an embodiment of the present application provides a communication method, including: a first device determines first control information, where the first control information carries first information, and the first information is used to indicate emergency information;
- the first control information is format 3 control information; or, the first control information is format 3A control information; or, the first control information is format 6-0A control information; or, the first control information
- the information is control information in format 6-0B; or, the first control information is control information in format 6-1A; or, the first control information is control information in format 6-1B.
- the first device sends the first control information to the second device. And, the first device sends the emergency information to the second device.
- the first device may instruct the second device to receive emergency information through control information of format 3, format 3A, format 6-0A, format 6-0B, format 6-1A, or format 6-1B.
- the control information in the format of format 3 and format 3A is group control information, which is carried in the type 0 public search space, and the control information in the format of format 6-0A, format 6-0B, format 6-1A, and format 6-1B is
- the user-specific message is carried in the user-specific search space, so the second device does not need to monitor the type2 search space for receiving emergency information, so that the user complexity is not increased, and the user power consumption is reduced.
- control information in these formats used in the embodiments of the present application does not require additional bits to indicate emergency information, so it can be avoided Increasing the control information overhead can avoid reducing spectrum efficiency and increasing user power consumption.
- control information in format 3 and format 3A is group control information, that is, the first device, such as a network device, can use one control information to send instruction information to multiple second devices, such as terminal devices, thereby avoiding This causes a waste of resources of the first device and saves power consumption of the first device.
- the first control information is downlink control information.
- the first control information may be format 3 or format 3A control information
- the TPC command number may also be called TPC command, and each TPC command contains 2 bits.
- the first information is indicated by the TPC command of the format 3 control information or the format 3A control information, so that the first control information can indicate the first information without adding additional bits to Indicate emergency information, so it can avoid increasing the control information overhead, thereby avoiding the reduction of spectrum efficiency and the increase of user power consumption
- the control information in format 3 and format 3A is group control information, that is, the first device.
- a network device can send instruction information to multiple second devices, such as terminal devices, through one control information, thereby avoiding waste of resources of the first device and saving power consumption of the first device.
- control information of format 3 and format 3A is carried in the type 0 common search space, so the second device does not need to monitor the type 2 search space for receiving emergency information, which can reduce user complexity and reduce user power consumption. And the changes to the existing agreement are minor.
- the K TPC commands may not be allocated to any second device to transmit transmission power control information, but are used to indicate the first information.
- the first control information may also include M TPC commands (or TPC command numbers), and the M TPC commands are used to indicate H transmission power control commands of the second device ,
- M and H are integers greater than or equal to 0.
- the K TPC commands are predefined, or the K TPC commands are determined by the first device and configured to the second device through higher layer signaling.
- the first control information is format 3 or format 3A control information, and Q bits other than the TPC command in the first control information are used to indicate the first information, where Q Is an integer greater than or equal to 1. That is, the first control information includes Q bits and N TPC commands, where Q bits are used to indicate the first information, and N TPC commands are used to indicate (or transmit) the transmission power of multiple second devices Control information.
- the control information in format 3 and format 3A is group control information, that is, the first device, such as a network device, can send instruction information to multiple second devices, such as terminal devices, through one control information , Thereby avoiding waste of resources of the first device and saving power consumption of the first device.
- control information of format 3 and format 3A is carried in the type 0 public search space. Therefore, the second device does not need to monitor the type 2 search space for receiving emergency information, so that it does not increase user complexity, reduces user power consumption, and is There are agreements with minor changes.
- the first control information is format 3 or format 3A control information, and the first control information includes Q bits, and the Q bits are used to indicate the first information, where Q is an integer greater than or equal to 1.
- the first control information may only be used to indicate emergency information notification, but may not be used to indicate (or transmit) transmission power control information.
- the first device may determine second information, and the second information is used to indicate the first control information.
- the control information includes the first information, and the second information is sent to the second device.
- the second device can obtain the first information from the first control information after receiving the second information, thereby improving the accuracy of obtaining the emergency information notification.
- the first control information may be format 6-1A or format 6-1B control information.
- the bits of the resource block allocation field of the first control information are all set to 1,
- the first field of the first control information is used to indicate the first information.
- the control information in the format 6-1A and format 6-1B is a user-specific message, which is carried in the user-specific search space. Therefore, the second device does not need to monitor the type2 search space for receiving emergency information, so there is no need to increase User complexity reduces user power consumption.
- the redundant state of the control information in format 6-1A and format 6-1B is used to indicate emergency information, which can avoid increasing control information overhead, thereby reducing user power consumption and improving system resource utilization. .
- the first field may be a physical random access channel mask index (physical random access channel, PRACH mask index) field.
- the first control information may be control information in the format 6-0B.
- the first control information may be control information in the format 6-0A, when the bits of the resource block allocation field of the first control information are all set to 1.
- the third field of the first control information is used to indicate the first information.
- the control information in the format 6-0A and format 6-0B is a user-specific message, which is carried in a user-specific search space. Therefore, the second device does not need to monitor the type 2 search space for receiving emergency information, so there is no need to increase User complexity reduces user power consumption.
- the redundant state of the control information format 6-0A and format 6-0B is used to indicate emergency information, which can avoid increasing the control information overhead, thereby reducing user power consumption and improving system resource utilization. .
- the cyclic redundancy check (CRC) of the first control information may be scrambled by a first scrambling code, where the first scrambling code may be system information Wireless temporary identifier (system information radio network temporary identifier, SI-RNTI).
- the first scrambling code may be system information Wireless temporary identifier (system information radio network temporary identifier, SI-RNTI).
- the first control information when the CRC of the first control information is scrambled by the second scrambling code, the first control information may only include the emergency information notification or the first control information is used to indicate the first information or the first information.
- the control information includes emergency information, where the second scrambling code may be SI-RNTI.
- the emergency information may include one or more of the following information: ETWS information, CMAS information, and information for indicating system message changes.
- ETWS information, CMAS information, and information used to indicate system message changes can also be called ETWS indication or ETWS notification (ETWS notification or ETWS indication), CMAS indication or CMAS notification (CMAS notification or CMAS indication), system message change indication or System message change notification (system information modification notification or system information modification indication).
- an embodiment of the present application provides a communication method, including: a second device receives first control information sent by a first device, the first control information carries first information, and the first information is used to indicate Emergency information; the first control information is format 3 control information; or, the first control information is format 3A control information; or, the first control information is format 6-0A control information; or, The first control information is control information in a format 6-0B; or, the first control information is control information in a format 6-1A; or, the first control information is control information in a format 6-1B.
- the second device receives the emergency information according to the first information in the first control information.
- the first device may instruct the second device to receive emergency information through control information of format 3, format 3A, format 6-0A, format 6-0B, format 6-1A, or format 6-1B.
- the control information in the format of format 3 and format 3A is group control information, which is carried in the type 0 public search space, and the control information in the format of format 6-0A, format 6-0B, format 6-1A, and format 6-1B is
- the user-specific message is carried in the user-specific search space, so the second device does not need to monitor the type2 search space for receiving emergency information, so that the user complexity is not increased, and the user power consumption is reduced.
- control information in these formats used in the embodiments of the present application does not require additional bits to indicate emergency information, so it can be avoided Increasing the control information overhead can avoid reducing spectrum efficiency and increasing user power consumption.
- control information in format 3 and format 3A is group control information, that is, the first device, such as a network device, can use one control information to send instruction information to multiple second devices, such as terminal devices, thereby avoiding This causes a waste of resources of the first device and saves power consumption of the first device.
- the first control information is downlink control information.
- the first control information may be format 3 or format 3A control information, and K TPC command numbers in the first control information are used to indicate the first information, where K is An integer greater than or equal to 1.
- the TPC command number may also be called TPC command, and each TPC command contains 2 bits.
- the first information can be indicated by the TPC command of the format 3 control information or the format 3A control information, so that the first control information can indicate the first information in the case of the number of bits, so there is no need to add additional bits to indicate emergency Therefore, it can avoid increasing the control information overhead, thereby avoiding the reduction of spectrum efficiency and the increase of user power consumption
- the control information in the format 3 and format 3A is the group control information, that is, the first device, such as the network
- the device can send instruction information to multiple second devices, such as terminal devices, through one control information, so as to avoid waste of resources of the first device and save power consumption of the first device.
- control information of format 3 and format 3A is carried in the type 0 common search space, so the second device does not need to monitor the type 2 search space for receiving emergency information, which can reduce user complexity and reduce user power consumption. And the changes to the existing agreement are minor.
- the K TPC commands may not be allocated to any second device to transmit transmission power control information, but are used to indicate the first information.
- the first control information may also include M TPC commands (or TPC command numbers), and the M TPC commands are used to indicate H transmission power control commands of the second device ,
- M and H are integers greater than or equal to 0.
- the K TPC commands may be predefined, or the K TPC commands may be determined by the second device by receiving high-layer signaling sent by the first device.
- the first control information may be format 3 or format 3A control information, and Q bits other than TPC command in the first control information are used to indicate the first information, where Q is an integer greater than or equal to 1. That is, the first control information includes Q bits and N TPC commands, where Q bits are used to indicate the first information, and N TPC commands are used to indicate (or transmit) the transmission power of multiple second devices Control information.
- the control information in format 3 and format 3A is group control information, that is, the first device, such as a network device, can send instruction information to multiple second devices, such as terminal devices, through one control information , Thereby avoiding waste of resources of the first device and saving power consumption of the first device.
- control information of format 3 and format 3A is carried in the type 0 public search space. Therefore, the second device does not need to monitor the type 2 search space for receiving emergency information, so that it does not increase user complexity, reduces user power consumption, and is There are agreements with minor changes.
- the first control information is format 3 or format 3A control information, and the first control information includes Q bits, and the Q bits are used to indicate the first information, where Q is an integer greater than or equal to 1.
- the first control information may only be used to indicate emergency information notification, but may not be used to indicate (or transmit) transmission power control information.
- the second device may receive the second information sent by the first device, and the second information is used to indicate The first control information includes the first information.
- the second device can obtain the first information from the first control information after receiving the second information, thereby improving the accuracy of obtaining the emergency information notification.
- the first control information may be format 6-1A or format 6-1B control information.
- the bits of the resource block allocation field of the first control information are all set to 1,
- the first field of the first control information is used to indicate the first information.
- the control information in the format 6-1A and format 6-1B is a user-specific message, which is carried in the user-specific search space. Therefore, the second device does not need to monitor the type2 search space for receiving emergency information, so there is no need to increase User complexity reduces user power consumption.
- the redundant state of the control information in format 6-1A and format 6-1B is used to indicate emergency information, which can avoid increasing control information overhead, thereby reducing user power consumption and improving system resource utilization. .
- the first field may be a PRACH Mask index field.
- the first control information may be control information in the format 6-0B.
- the first control information may be control information in the format 6-0A, when the bits of the resource block allocation field of the first control information are all set to 1.
- the third field of the first control information is used to indicate the first information.
- the control information in the format 6-0A and format 6-0B is a user-specific message, which is carried in a user-specific search space. Therefore, the second device does not need to monitor the type 2 search space for receiving emergency information, so there is no need to increase User complexity reduces user power consumption.
- the redundant state of the control information format 6-0A and format 6-0B is used to indicate emergency information, which can avoid increasing the control information overhead, thereby reducing user power consumption and improving system resource utilization. .
- the CRC of the first control information may be scrambled by a first scrambling code, where the first scrambling code may be SI-RNTI.
- the first control information when the CRC of the first control information is scrambled by the second scrambling code, the first control information may only include the emergency information notification or the first control information is used to indicate the first information or the first information.
- the control information includes emergency information, where the second scrambling code may be SI-RNTI.
- the emergency information may include one or more of the following information: ETWS information, CMAS information, and information for indicating system message changes.
- ETWS information, CMAS information, and information used to indicate system message changes can also be called ETWS indication or ETWS notification (ETWS notification or ETWS indication), CMAS indication or CMAS notification (CMAS notification or CMAS indication), system message change indication or System message change notification (system information modification notification or system information modification indication).
- this application provides a device, which may be a first device, a second device, or a chip.
- the device has the function of implementing any one of the above-mentioned first aspect or second aspect. This function can be realized by hardware, or by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above-mentioned functions.
- an apparatus including a processor, a communication interface, and a memory.
- the communication interface is used to transmit information, and/or messages, and/or data between the device and other devices.
- the memory is used to store computer-executable instructions.
- the processor executes the computer-executable instructions stored in the memory, so that the device executes the communication method according to the first aspect or any one of the first aspects. , Or the communication method described in the second aspect or any one of the second aspects above.
- this application also provides a system, which includes the first device in any embodiment of the foregoing first aspect and the second device in any embodiment of the foregoing second aspect.
- the present application also provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the methods described in the above aspects.
- the present application also provides a computer program product including instructions, which when run on a computer, cause the computer to execute the methods described in the foregoing aspects.
- FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the application
- FIG. 2 is a schematic flowchart of a communication method provided by an embodiment of this application.
- FIG. 3 is a schematic structural diagram of a communication device provided by an embodiment of the application.
- Fig. 4 is a schematic structural diagram of a communication device provided by an embodiment of the application.
- the communication method provided in this application can be applied to various communication systems, for example, the Internet of Things (IoT), the narrowband Internet of Things (NB-IoT), and the long term evolution (long term evolution).
- LTE can also be a fifth-generation (5G) communication system
- 5G fifth-generation
- NR 5G new radio
- GSM global system for mobile communication
- GSM global system for mobile communication
- UMTS mobile communication system
- code division multiple access code division multiple access
- CDMA code division multiple access
- the terminal device involved in the embodiments of the present application is a device that provides users with voice and/or data connectivity, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
- the terminal device can also be another processing device connected to the wireless modem.
- the terminal device can communicate with one or more core networks through a radio access network (RAN).
- Terminal equipment can also be called wireless terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point (access point) , Remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment), etc.
- the terminal device can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal.
- a mobile terminal such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal.
- the terminal device can be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device, which is compatible with wireless The access network exchanges language and/or data.
- the terminal device can also be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), and other equipment.
- Common terminal devices include, for example: mobile phones, tablet computers, laptops, handheld computers, mobile internet devices (MID), wearable devices, such as smart watches, smart bracelets, pedometers, etc., but this application is implemented Examples are not limited to this.
- the network devices involved in the embodiments of the present application can be used to convert received air frames and Internet Protocol (IP) packets to each other, and serve as a router between the terminal device and the rest of the access network, where The rest of the access network can include IP networks and so on.
- IP Internet Protocol
- the network equipment can also coordinate the attribute management of the air interface.
- the network equipment can be a base transceiver station (BTS) in the global system for mobile communication (GSM) or code division multiple access (CDMA), or it can be a broadband code division multiple access.
- GSM global system for mobile communication
- CDMA code division multiple access
- the base station (NodeB) in (wideband code division multiple access, WCDMA), can also be the evolutionary base station (evolutional Node B, eNB or e-NodeB) in LTE, or the new radio controller (NR) controller), it can be the gNode B (gNB) in the 5G system, it can be a centralized unit, it can be a new wireless base station, it can be a remote radio module, it can be a micro base station, it can be a relay (relay ), which may be a distributed unit, may be a reception point (transmission reception point, TRP) or transmission point (transmission point, TP), or any other wireless access device, but the embodiment of the application is not limited thereto.
- Network equipment can cover 1 or more cells.
- a communication system provided in an embodiment of this application includes a network device and six terminal devices, namely UE1 to UE6.
- UE1 to UE6 can send uplink data to a network device, and the network device can receive uplink data sent by UE1 to UE6.
- UE4 to UE6 can also form a sub-communication system.
- the network device can send downlink information to UE1, UE2, UE3, UE5, and UE5 can send downlink information to UE4, UE6 based on the device-to-device (D2D) technology.
- Fig. 1 is only a schematic diagram, and does not specifically limit the type of the communication system, and the number and types of devices included in the communication system.
- the UE may be in three states: idle state, inactive state and connected state.
- the connected state UE can communicate with the base station and transmit data through the base station dynamic scheduling, while for the idle state UE, it cannot transmit data through the base station dynamic scheduling. It needs to perform random access first, and then the data can be transmitted after the RRC connection is established. Transmission, or message 3 in the random access process, carries a small amount of uplink data.
- the inactive state can be regarded as an intermediate state of these two states.
- the UE and the core network retain the context of the radio resource control (RRC) message in the connected state, so it can be faster than the idle state Enter the connected state.
- RRC radio resource control
- the fourth-generation communication system long term evolution-advanced (LTE-A) will continue to provide wireless communication services for its user equipment (UE) in the short term (or even long term).
- enhanced machine type communication (eMTC) systems and other evolutionary systems for example, Further eMTC (FeMTC), Even Further eMTC (eFeMTC), additional MTC (AMTC)
- eMTC enhanced machine type communication
- FeMTC Further eMTC
- eFeMTC Even Further eMTC
- ATC additional MTC
- the system, eMTC system and other evolved systems work in the LTE system and in the LTE frequency band.
- the working bandwidth of eMTC terminals may usually be small and smaller than the working bandwidth of the LTE system.
- the working bandwidth of eMTC terminals may be a narrowband NB, and an NB includes 6 consecutive physical resource blocks (physical resource blocks). , PRB), a PRB includes 12 subcarriers (subcarrier, SC). Due to its low power consumption, long sleep and other characteristics, the battery life of eMTC UE is long, which is expected to reach about 10 years.
- terminal equipment obtains scheduling information by monitoring the control channel search space, and then performs data scheduling.
- the control channel search space in LTE can be divided into a user-specific search space and a common search space.
- the user-specific search space is configured by each user, and each user is assigned a specific search space.
- the public search space is a search space that a group of users or users of a cell will monitor, and the public messages of the cell are generally sent.
- only the user-specific search space and the type 0 common search space for transmitting terminal group power control are required to be detected.
- Emergency information (such as earthquake and tsunami warning system (ETWS) information, commercial mobile alert service (CMAS) information, information used to indicate system information modification, etc.) It is carried in system messages.
- EWS earthquake and tsunami warning system
- CMAS commercial mobile alert service
- the emergency information notification is in the paging message or the direct indication information, but the paging message or the direct indication information is the type 2 public search space.
- the eMTC terminal device will not monitor the search space in the connected state, so it cannot Receive emergency message notifications in the connected state. Then the eMTC terminal device can only fall back to the idle state to receive the paging message or directly indicate the information to receive the emergency information notification, and then receive the emergency information, which causes a longer delay and increases the power consumption of the terminal device.
- a possible solution is to allow eMTC terminal devices in the connected state to simultaneously monitor the type2 search space and the user-specific search space, that is, allow the eMTC terminal devices to receive paging messages or direct indication information in the connected state.
- the paging message and the user-specific search space may be located on different narrowbands, the connected eMTC terminal device needs to monitor two narrowbands at the same time, which seriously increases user complexity and user power consumption.
- this approach has greatly changed the existing agreement.
- the embodiments of the present application provide a communication method and device, which are used to solve the problem of high complexity and high power consumption when receiving an emergency message notification in a connected eMTC terminal device in the prior art.
- the method and the device are based on the same inventive concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
- Fig. 2 is a flowchart of a communication method provided by this application.
- the method can be applied to the terminal equipment in the communication system shown in FIG. 1, and the method includes:
- the first device determines first control information.
- the first control information carries first information, and the first information is used to indicate emergency information; the first control information is format 3 control information; or, the first control information is format3A Or, the first control information is control information of format6-0A; or, the first control information is control information of format6-0B; or, the first control information is control information of format6-1A Information; or, the first control information is control information of format6-1B.
- the emergency information may include one or more of the following information: ETWS information, CMAS information, and information for indicating system information and modification.
- ETWS information, CMAS information, and information used to indicate system message changes may also be called ETWS indication or ETWS notification (ETWS notification or ETWS indication), CMAS indication or CMAS notification (CMAS notification or CMAS indication), Message change indication or system message change notification (system information modification notification or system information modification indication). .
- the first control information may be downlink control information in the LTE eMTC system, downlink control information in the NR system, etc., which is not specifically limited here.
- the following takes the first control information as downlink control information (downlink control information, DCI) as an example.
- the type of emergency information and/or notification of emergency information may be specifically indicated.
- the first device may also indicate that there is no emergency information through the first control information.
- the first device may be a network device, and the second device is a terminal device.
- the first device may also be a terminal device, and the second device may be a network device.
- the first device may also be another device with sending capability, and the second device may be another device with receiving capability.
- S202 The first device sends the first control information to the second device.
- the second device receives the first control information.
- S203 The first device sends the emergency information to the second device.
- S204 The second device receives the emergency information according to the first information in the first control information.
- the first device may instruct the second device to receive emergency information through control information of format 3, format 3A, format 6-0A, format 6-0B, format 6-1A, or format 6-1B.
- the control information in the format of format 3 and format 3A is group control information, which is carried in the type 0 public search space, and the control information in the format of format 6-0A, format 6-0B, format 6-1A, and format 6-1B is
- the user-specific message is carried in the user-specific search space, so the second device does not need to monitor the type2 search space for receiving emergency information, so that the user complexity is not increased, and the user power consumption is reduced.
- control information in these formats used in the embodiments of the present application does not require additional bits to indicate emergency information, so it can be avoided Increasing the control information overhead can avoid reducing spectrum efficiency and increasing user power consumption.
- control information in format 3 and format 3A is group control information, that is, the first device, such as a network device, can use one control information to send instruction information to multiple second devices, such as terminal devices, thereby avoiding This causes a waste of resources of the first device and saves power consumption of the first device.
- the first control information may be format 3 or format 3A control information, and K transmission power control command numbers (TPC command numbers) in the first control information Used to indicate the first information, where K is an integer greater than or equal to 1.
- K is an integer greater than or equal to 1.
- the K TPC command numbers may not be allocated to any second device to transmit transmission power control information, but are used to indicate the first information.
- the first downlink control information may also include M TPC command numbers, and the M TPC command numbers are used to indicate M transmission power control commands of the second device, or the M TPCs
- the command number is used to indicate H transmission power control commands of the second device, M is an integer greater than or equal to 0, and H is an integer greater than M.
- the first control information may include K+M TPC command numbers, where K TPC command numbers are used to indicate the first information, and the remaining M TPC command numbers are still used to indicate transmission power control commands.
- one TPC command number of the remaining M TPC command numbers may indicate one transmission power control command of the second device, or may indicate transmission power control commands of multiple second devices.
- TPC command number can also be called TPC command.
- Each TPC command contains 2 bits. For the convenience of description, the following are collectively referred to as TPC command.
- the K TPC commands may be predefined.
- the first device and the second device predefine the number, index, number, etc. of the K TPC commands.
- the K TPC commands are determined by the first device and configured to the second device through high-layer signaling, for example, the first device can be configured through system information or radio resource control (RRC)
- RRC radio resource control
- High-level signaling such as signaling or media access control control element (MAC CE) signaling configures the number, index, and number of K TPC commands.
- RRC radio resource control
- MAC CE media access control control element
- TPC command includes two bits, so TPC command includes four value states, namely "00", “01”, “10", and "11". Any two value states can be selected to indicate the first information respectively.
- the third information such as 00 indicates that the third information has no emergency information, and 01 indicates that the first information has emergency information, as shown in Table 1.
- 00 indicates the third information (that is, there is no emergency information)
- 01 indicates the first information (that is, there is emergency information) and the emergency information is ETWS notification
- 10 indicates the first information (that is, there is emergency information) and the emergency information is a CMAS notification, as shown in Table 2.
- four value states can be used to indicate the first information and the third information respectively, for example, 00 indicates the third information (ie no emergency information), 01 indicates the first information (ie there is emergency information) and the emergency information is ETWS Notification, 10 indicates the first information (that is, there is emergency information) and the emergency information is a CMAS notification, and 11 indicates the first information (that is, there is emergency information) and the emergency information is a system information modification notification, as shown in Table 3-1.
- 2 bits can also be used to indicate the first information and the third information.
- one of the two bits is used to indicate the ETWS notification
- the other bit of the two bits is used to indicate the CMAS notification
- 0 means that there is no such type.
- Emergency information, 1 means there is emergency information of this type.
- high-order bits indicate CMAS notification
- low-order bits indicate CMAS notification
- Table 3-2 00 indicates third information (that is, there is no emergency information, that is, there is neither ETWS notification nor CMAS notification)
- 01 indicates The first information (ie there is emergency information) and the emergency information is an ETWS notification
- 10 indicates the first information (ie there is emergency information) and the emergency information is a CMAS notification
- 11 indicates the first information (ie there is emergency information) and the emergency information is ETWS Notification and CMAS notification are shown in Table 3-3.
- Bit 1 (low bit) 2 (high bit) meaning ETWS notification CMAS notification
- two TPC commands include 4 bits, of which 3 bits can be used to indicate the first information and the third information, for example, the first bit (the most significant bit) of the 3 bits is used to indicate ETWS notification, the second bit of the 3 bits (the middle bit) is used to indicate the CMAS notification, and the third bit (the least significant bit) of the 3 bits is used to indicate the system message change, as shown in Table 3-4 Shown.
- the first bit (the most significant bit) of the 3 bits is used to indicate ETWS notification
- the second bit of the 3 bits (the middle bit) is used to indicate the CMAS notification
- the third bit (the least significant bit) of the 3 bits is used to indicate the system message change, as shown in Table 3-4 Shown.
- 0 means that there is no emergency information of this type
- 1 means that there is emergency information of this type.
- 000 indicates the third information (ie there is no emergency information)
- 010 indicates the first information (ie there is emergency information) and the emergency information is CMAS notification
- 100 indicates the first information (ie there is emergency information) and the emergency information is an ETWS notification
- 110 Indicates the first information (that is, there is emergency information) and the emergency information is ETWS notification and CMAS notification
- 111 indicates the first information (that is, there is emergency information) and the emergency information is ETWS notification, CMAS notification, and system information modification notification
- 001 indicates the first Information (that is, there is emergency information) and the emergency information is system information modification notification
- 101 indicates the first information (that is, there is emergency information) and the emergency information is ETWS notification and system information modification notification
- 011 indicates the first information (that is, there is emergency information)
- the emergency information is CMAS notification and system information modification notification, as shown in Table 3-5.
- Tables 1 to 3-5 are only exemplary descriptions, and do not describe the type of emergency information indicated by the first information, the value status corresponding to the first information, and the value status corresponding to the third information. Specific restrictions. At the same time, it should be understood that the specific meaning corresponding to the different bits or different states in the above table is not specifically limited, as long as the number of bits included and the indicated content are the same as the method provided in the embodiment of this application, it is implemented in this application. Examples of protected content.
- the first control information may be format 3 or format 3A control information, and Q bits other than TPC command in the first control information are used to indicate the first information, where Q is An integer greater than or equal to 1. That is, the first control information includes Q bits and N TPC commands, where Q bits are used to indicate the first information, and N TPC commands are used to indicate (or transmit) the transmission of multiple second devices Power control information.
- the first control information only includes Q bits. In this case, the first control information may be used to indicate emergency information notification, but may not be used to indicate (or transmit) transmission power control information.
- Q can be equal to 1, and the 1 bit has two value states, namely "0" and "1". Therefore, when the value of this bit is 0, the first information can be indicated (that is, there is emergency Information). In addition, when the bit value is 1, it can also indicate third information (that is, there is no emergency information). Or, when the value of the added one bit is 1, it can indicate the first information (that is, there is emergency information), and when the value of this bit is 0, it can also indicate the third information (that is, there is no emergency information).
- Q can also be equal to 2, and the 2 bits have four value states, namely "00", "01", “10", and "11". Therefore, the first information can be indicated by the added 2 bits
- the way to indicate the first information by adding two bits can refer to the TPC command way to indicate the first information through different value states, as shown in Table 1 to Table 3-1, which will not be repeated here. Repeat.
- the two bits can be used to indicate the two types of emergency information, and the two bits can respectively indicate the two types of emergency information.
- the TPC command through 2 bits indicate two types of emergency information modes, as shown in Table 3-2 to Table 3-3, which will not be repeated here.
- Q can also be equal to 3.
- 3 bits indicate the first information and the third information
- three types of emergency information can be indicated by three bits, and the three bits can indicate two types of emergency information.
- the TPC command indicates three types of emergency information through 3 bits, as shown in Table 3-4 to Table 3-5, which will not be repeated here.
- the first device may also determine second information, and the second information is used to indicate the first control information Including the first information, and sending the second information to the second device. Therefore, after receiving the second information, the second device can determine to acquire the first information in the first control information.
- the first control information may also be control information in format 6-1A or format 6-1B, when all bits of the resource block assignment field (resource block assignment) of the first control information When set to 1, the first field of the first control information may be used to indicate the first information.
- the first field may be a physical random access channel mask index (physical random access channel mask index, PRACH mask index) field.
- the first field may indicate that there is emergency information when the value is 13 or 14 or 15. Or the first field can select any two value states from 13, 14, and 15 to indicate two emergency information notifications respectively.
- the two emergency information notifications can be any two of ETWS notification, CMAS notification, and system info modification notification.
- An emergency information notification, such as 13 indicates ETWS notification, 14 indicates CMAS notification.
- the first field can indicate three emergency information notifications respectively through the three value states of 13, 14, and 15, where the three emergency information notifications can be ETWS notifications, CMAS notifications, and system info modification notifications, such as 13 It indicates ETWS notification, 14 indicates CMAS notification, and 15 indicates system info modification notification, as shown in Table 4.
- the first field may indicate emergency information when the value is 7 or 8 or 9.
- the first field can select any two value states from 7, 8, and 9 to indicate two emergency information notifications respectively, where the two emergency information notifications can be any two of the ETWS notification, CMAS notification, and system info modification notification.
- An emergency information notification such as 7 indicates ETWS notification, 8 indicates CMAS notification.
- the first field can indicate three emergency information notifications respectively through the three value states of 7, 8, and 9, where the three emergency information notifications can be ETWS notifications, CMAS notifications, and system info modification notifications, such as 7 It indicates ETWS notification, 8 indicates CMAS notification, and 9 indicates system info modification notification, as shown in Table 4.
- the first control information may be control information in the format 6-0B.
- the bits of the MCS field of the first control information are all set to 1, the first control information
- the second field is used to indicate the first information.
- the second field may be any field in the first control information except the MCS field and the uplink and downlink distinction flag bit (Flag for format 6-0B/format 6-1B differentiation).
- the second field may indicate the first information through different states. Specifically, the second field may indicate the first information through the first state, where the first state may include one or more states. If the first state includes a state, the state may indicate the first information (that is, there is emergency information). If the first state includes two states, the two states may respectively indicate two types of emergency information notifications, and if the first state includes three states, the three states may respectively indicate three types of emergency information notifications. Wherein, each state in the first state may include at least one bit whose value is 1.
- the first field is used as the repetition number field.
- the repetition number field can indicate the first information through a value state. For example, when the repetition number field has a value of 111, it indicates the first information (that is, there is emergency information).
- the repetition number field can indicate the first information through two value states. For example, when the repetition number field is 111, it indicates the first information (that is, there is emergency information), and the type of the emergency information is ETWS, and the repetition number field takes the value 110 hours indicate the first information (that is, there is emergency information) and the type of emergency information is CMAS.
- the repetition number field can indicate the first information through three value states.
- the repetition number field when the repetition number field has a value of 111, it indicates the first information (that is, there is emergency information) and the type of emergency information is ETWS, and the repetition number field has a value of At 110, it indicates the first information (that is, there is emergency information) and the type of emergency information is CMAS.
- the repetition number field When the repetition number field is 100, it indicates the first information (that is, there is emergency information) and the type of emergency information is system info modification. It should be noted that this is only an exemplary description, and does not specifically describe the type of the first field, the number of states included in the first state, the type of emergency information, and the value status corresponding to each type of emergency information. limited.
- the second field may use different bits to indicate the first information.
- the second field uses different bits to indicate the first information.
- the TPC command uses different bits to indicate two types of emergency information.
- the second field uses two bits to indicate two types of emergency information.
- the second field uses 3 bits to indicate two types of emergency information.
- the TPC command to indicate three types of emergency information with 3 bits, as shown in Table 3-4 to Table 3-5. I will not repeat them here.
- the first control information may be control information in the format 6-0A.
- the first control information may be control information in the format 6-0A.
- the third field may be any field in the first control information except resource block assignment and uplink and downlink distinction fields (Flag for format 6-0A/format 6-1A differentiation).
- the third field may indicate the first information through different states. Specifically, the third field may indicate the first information through the first state, where the first state may include one or more states. If the first state includes a state, the state may indicate the first information (that is, there is emergency information). If the first state includes two states, the two states can respectively indicate two types of emergency information, and if the first state includes three states, the three states can respectively indicate three types of emergency information. Wherein, each state in the first state may include at least one bit whose value is 1.
- the MCS field can indicate the first information through a value state. For example, when the value of the MCS field is 111, it indicates the first information (that is, there is Emergency information).
- the MCS field can indicate the first information through two value states. For example, when the value of the MCS field is 111, it indicates the first information (that is, there is emergency information) and the type of emergency information is ETWS, and the value of the MCS field is 110.
- the first information (that is, there is emergency information) and the type of emergency information is CMAS.
- the MCS field can indicate the first information through three value states.
- the value of the MCS field when the value of the MCS field is 111, it indicates the first information (that is, there is emergency information) and the type of emergency information is ETWS, and the value of the MCS field is 110.
- the first information (that is, there is emergency information) and the type of the emergency information is CMAS.
- the MCS field value is 100, it indicates the first information (that is, there is emergency information) and the type of the emergency information is system info modification. It should be noted that this is only an exemplary description, and does not specifically describe the type of the first field, the number of states included in the first state, the type of emergency information, and the value status corresponding to each type of emergency information. limited.
- the third field may use different bits to indicate the first information.
- the third field uses different bits to indicate the first information.
- the TPC command uses different bits to indicate two types of emergency information.
- the third field uses two bits to indicate two types of emergency information.
- the third field uses 3 bits to indicate two types of emergency information.
- the cyclic redundancy check (CRC) of the first control information may be scrambled by the first scrambling code, where the first scrambling code
- a scrambling code may be a system information radio network temporary identifier (SI-RNTI).
- the first control information when the CRC of the first control information is scrambled by the second scrambling code, the first control information may only include emergency information notification or the first control information may include emergency information notification or the first control information To indicate or transmit the first information, the second scrambling code may be SI-RNTI.
- the fourth field in the first control information may be used to indicate the first information, and the fourth field may be the first Any field in the control information.
- the embodiment of the present application provides a communication device.
- the structure of the communication device may be as shown in FIG. 3, including a processing unit 301 and a transceiver unit 302.
- the device is specifically used to implement the function of the first device in the embodiment shown in FIG. 2.
- the device may be the first device itself, or the chip or chipset or the chip in the first device. Used to perform part of the related method function.
- the processing unit 301 is configured to determine first control information, where the first control information carries first information, and the first information is used to indicate emergency information; the first control information is format 3 control information; Or, the first control information is control information in format 3A; or, the first control information is control information in format 6-0A; or, the first control information is control information in format 6-0B; or , The first control information is control information in format 6-1A; or, the first control information is control information in format 6-1B.
- the transceiver unit 302 is configured to send the first control information determined by the processing unit 301 to a second device; and send the emergency information to the second device.
- the emergency information may include one or more of the following information: ETWS notification, CMAS notification, and notification for indicating system message changes.
- the first control information is format 3 or format 3A control information
- K TPC command numbers in the first control information may be used to indicate the first information, where K is greater than Or an integer equal to 1.
- the K TPC command numbers may be predefined, or the K TPC command numbers may be determined by the first device and configured to the second device through higher layer signaling.
- the first control information is format 3 or format 3A control information
- Q bits other than the TPC command number in the first control information may be used to indicate the first information, Where Q is an integer greater than or equal to 1.
- the processing unit 301 may also be used to determine second information before the transceiver unit 302 sends the first control information to the second device, and the second information is used to indicate The first control information includes the first information.
- the transceiving unit 302 may also be configured to send the second information determined by the processing unit 301 to the second device.
- the first control information is control information of format 6-1A or format 6-1B, and when all bits of the resource block allocation field of the first control information are set to 1, The first field of the first control information may be used to indicate the first information.
- the first field may be a PRACH Mask index field.
- the first control information is control information in the format 6-0B.
- the first control information is control information in the format 6-0A.
- the first control information is control information in the format 6-0A, and when the bits of the resource block allocation field of the first control information are all set to 1,
- the third field of the first control information may be used to indicate the first information.
- the CRC of the first control information is scrambled by SI-RNTI.
- the device is specifically used to implement the function of the second device in the embodiment shown in FIG. 2.
- the device may be the second device itself, or a chip or chipset or chip in the second device. Part of the function used to perform related methods.
- the transceiver unit 302 is configured to receive data; the processing unit 301 is configured to control the transceiver unit 302 to receive first control information sent by a first device, where the first control information carries first information, and the first The information is used to indicate emergency information; the first control information is control information in format 3; or, the first control information is control information in format 3A; or, the first control information is control information in format 6-0A Information; or, the first control information is control information in the format 6-0B; or, the first control information is control information in the format 6-1A; or, the first control information is in the format 6-1B Control information; and, controlling the transceiver unit 302 to receive the emergency information according to the first information in the first control information.
- the emergency information may include one or more of the following information: ETWS notification, CMAS notification, and notification for indicating system message changes.
- the first control information is format 3 or format 3A control information
- K TPC command numbers in the first control information may be used to indicate the first information, where K is greater than Or an integer equal to 1.
- the K TPC command numbers may be predefined, or the K TPC command numbers may also be determined by the second device by receiving high-layer signaling sent by the first device.
- the first control information is format 3 or format 3A control information
- Q bits in the first control information may be used to indicate the first information, where Q is greater than or An integer equal to 1.
- the processing unit 301 may also be used to: before controlling the transceiver unit 302 to receive the first control information sent by the first device, control the transceiver unit 302 to receive the first control information sent by the first device. Second information, where the second information is used to indicate that the first control information includes the first information.
- the first control information is control information of format 6-1A or format 6-1B, and when all bits of the resource block allocation field of the first control information are set to 1, the The first field of the first control information may be used to indicate the first information.
- the first field may be a PRACH Mask index field.
- the first control information is control information in the format 6-0B.
- the first control information is control information in the format 6-0A.
- the first control information is control information in the format 6-0A, and when the bits of the resource block allocation field of the first control information are all set to 1,
- the third field of the first control information may be used to indicate the first information.
- the CRC of the first control information is scrambled by SI-RNTI.
- the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods.
- the functional modules in the various embodiments of the present application may be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
- the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
- the communication device may be as shown in FIG. 4, and the processing unit 301 may be the processor 402.
- the processor 402 may be a CPU, or a digital processing module, and so on.
- the transceiver unit 302 may be a communication interface 401, and the communication interface 401 may be a transceiver, an interface circuit such as a transceiver circuit, etc., or a transceiver chip, etc.
- the network device further includes: a memory 403, configured to store a program executed by the processor 801.
- the memory 403 may be a non-volatile memory, such as HDD or SSD, etc., or may also be a volatile memory, such as RAM.
- the memory 403 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
- the processor 402 is configured to execute the program code stored in the memory 403, and is specifically configured to execute the actions of the aforementioned processing unit 301, which will not be repeated in this application.
- connection medium between the communication interface 401, the processor 402, and the memory 403 is not limited in the embodiment of the present application.
- the memory 403, the processor 402, and the communication interface 401 are connected by a bus 404 in FIG. 4, and the bus is represented by a thick line in FIG. 4.
- the connection modes between other components are only for schematic illustration. , Is not limited.
- the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 4 to represent, but it does not mean that there is only one bus or one type of bus.
- the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
- a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
- the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.
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Abstract
一种通信方法及设备,用于解决现有技术中连接态的eMTC终端设备接收紧急消息通知时复杂度较大,功耗较大的问题。该方法包括:第一设备确定第一控制信息,第一控制信息携带第一信息,第一信息用于指示紧急信息;第一控制信息为格式3的控制信息;或者,第一控制信息为格式3A的控制信息;或者,第一控制信息为格式6-0A的控制信息;或者,第一控制信息为格式6-0B的控制信息;或者,第一控制信息为格式6-1A的控制信息;或者,第一控制信息为格式6-1B的控制信息。第一设备向第二设备发送第一控制信息。并且,第一设备向第二设备发送紧急信息。本申请实施例提供的方法和设备可以提高网络的覆盖能力,可以应用于物联网,例如MTC、IoT、LTE-M、M2M等。
Description
本申请涉及通信技术领域,尤其涉及一种通信方法及设备。
目前,第四代通信系统——演进型长期演进系统(long term evolution-advanced,LTE-A)在短期内(甚至长期)仍将为其用户设备(user equipment,UE)继续提供无线通信服务。特别地,增强型机器类通信(enhanced machine type communication,eMTC)系统及其他演化系统(比如,Further eMTC(FeMTC),Even Further eMTC(eFeMTC),additional MTC(AMTC))是在LTE基础上衍生的系统,eMTC系统及其他演化系统在LTE系统中、在LTE频段中进行工作。为了节省功耗,降低成本,eMTC终端的工作带宽通常可能较小,小于LTE系统的工作带宽,例如eMTC终端的工作带宽可以是一个窄带NB,一个NB包括6个连续的物理资源块(physical resourceblock,PRB),一个PRB包括12个子载波(subcarrier,SC)。由于其低功耗、长休眠等特性,eMTC UE的电池寿命较长,预期可达10年左右。
为了节约eMTC终端功耗,降低eMTC终端检测复杂度,对于处于连接态的eMTC终端,只能检测用户特定搜索空间和用于传输终端组(UE group)传输功率控制信息的type 0公共搜索空间。
现有技术中,紧急信息(如地震和海啸预警系统(earthquake and tsunami warning system,ETWS)信息、商业流动警报服务(commercial mobile alert service,CMAS)信息、用于指示系统消息改变(system information modification)的信息等)携带在系统消息中,eMTC终端设备为了节省功耗不会很频繁的更新系统消息,因此遇到紧急消息时,基站通过寻呼消息或直接指示信息通知终端设备。但是寻呼消息或直接指示信息承载在type2公共搜索空间中,eMTC终端在连接态不会监测该搜索空间,因此连接态eMTC终端无法接收紧急消息通知。
一种可能的解决方案:通过允许连接态的eMTC终端设备同时监测type2搜索空间和用户特定搜索空间,也就是允许eMTC终端设备在连接态时接收寻呼消息或直接指示信息。但是,由于寻呼消息和用户特定搜索空间可能位于不同的窄带上,因此eMTC终端设备需要同时监测两个窄带,严重增加用户复杂度,增加用户功耗。
发明内容
本申请实施例提供了一种通信方法及设备,用于解决现有技术中连接态的eMTC终端设备接收紧急消息通知时复杂度较大,功耗较大的问题。
第一方面,本申请实施例提供了一种通信方法,包括:第一设备确定第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制 信息。所述第一设备向第二设备发送所述第一控制信息。并且,所述第一设备向所述第二设备发送所述紧急信息。
本申请实施例中,第一设备可以通过format 3、format 3A、format 6-0A、format 6-0B、format 6-1A、或format 6-1B的控制信息指示第二设备接收紧急信息。格式为format 3和format 3A的控制信息为群组控制信息,承载在type 0公共搜索空间中,格式为format 6-0A、format 6-0B、format 6-1A和format 6-1B的控制信息为用户特定消息,承载在用户特定搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。
相比于现有技术中在用户特定的控制信息中增加比特来指示紧急信息的方式,本申请实施例中使用的上述这些格式的控制信息,不需要额外增加比特来指示紧急信息,因此可以避免增加控制信息开销,进而可以避免降低频谱效率,以及避免增加用户功耗。
此外,格式为format 3和format 3A的控制信息为群组控制信息,也即第一设备,比如网络设备,可以通过一个控制信息将指示信息发给多个第二设备,比如终端设备,从而避免造成第一设备的资源浪费,节省第一设备的功耗。
在一种可能的设计中,第一控制信息为下行控制信息。
在一种可能的设计中,所述第一控制信息可以为格式3或格式3A的控制信息,所述第一控制信息中的K个传输功率控制命令编号(transmit power control command number,TPC command number)用于指示所述第一信息,其中K为大于或等于1的整数。其中,TPC command number也可以称为TPC command,每个TPC command包含2比特。上述设计中,通过格式3控制信息或格式3A控制信息的TPC command来指示第一信息,可以使得第一控制信息可以在比特数不变的情况下指示第一信息,从而不需要额外增加比特来指示紧急信息,因此可以避免增加控制信息开销,进而可以避免降低频谱效率,以及避免增加用户功耗,并且,格式为format 3和format 3A的控制信息为群组控制信息,也即第一设备,比如网络设备,可以通过一个控制信息将指示信息发给多个第二设备,比如终端设备,从而避免造成第一设备的资源浪费,节省第一设备的功耗。此外,format 3、format 3A的控制信息承载在type 0公共搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。并且对现有协议的改动较小。
在上述设计中,该K个TPC command可以不分配给任何第二设备来传输传输功率控制信息,而是用于指示第一信息。
在一种可能的设计中,所述第一控制信息中还可以包括M个TPC command(或TPC command number),所述M个TPC command用于指示H个所述第二设备的发送功控制命令,所述M和H为大于或等于0的整数。
在一种可能的设计中,所述K个TPC command为预定义的,或,所述K个TPC command为所述第一设备确定,并通过高层信令配置给所述第二设备。
在一种可能的设计中,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中TPC command之外的Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。即,第一控制信息中包括Q个比特和N个TPC command,其中,Q个比特用于指示所述第一信息,N个TPC command用于指示(或传输)多个第二设备的传输功率控制信息。上述设计中,由于格式为format 3和format 3A的控制信息为群组控制信息,也 即第一设备,比如网络设备,可以通过一个控制信息将指示信息发给多个第二设备,比如终端设备,从而避免造成第一设备的资源浪费,节省第一设备的功耗。此外,format 3、format 3A的控制信息承载在type 0公共搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗,并且对现有协议的改动较小。
在一种可能的设计中,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中包括Q个比特,该Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。在上述设计中,第一控制信息可以只用于指示紧急信息通知,而可以不用于指示(或传输)传输功率控制信息。
在一种可能的设计中,在所述第一设备向第二设备发送所述第一控制信息之前,所述第一设备可以确定第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息,并向所述第二设备发送所述第二信息。通过上述设计,第二设备可以在接收到第二信息后,在第一控制信息中获取第一信息,从而提高获取紧急信息通知的准确性。
在一种可能的设计中,所述第一控制信息可以为格式6-1A或格式6-1B的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第一字段用于指示所述第一信息。上述设计中,格式为format 6-1A和format 6-1B的控制信息为用户特定消息,承载在用户特定搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。并且,上述设计中通过使用格式为format 6-1A和format 6-1B的控制信息的冗余状态来指示紧急信息,可以避免增加控制信息开销,从而可以减小用户功耗,提升系统资源利用率。
在一种可能的设计中,所述第一字段可以为物理随机接入信道掩码索引(physical random access channel,PRACH Mask index)字段。
在一种可能的设计中,所述第一控制信息可以为格式6-0B的控制信息,当所述第一控制信息的调制编码方式字段的比特全部设置为1时,所述第一控制信息的第二字段用于指示所述第一信息;或者,所述第一控制信息可以为格式6-0A的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第三字段用于指示所述第一信息。上述设计中,格式为format 6-0A、format 6-0B的控制信息为用户特定消息,承载在用户特定搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。并且,上述设计中通过使用格式为format 6-0A、format 6-0B的控制信息的冗余状态来指示紧急信息,可以避免增加控制信息开销,从而可以减小用户功耗,提升系统资源利用率。
在一种可能的设计中,所述第一控制信息的循环冗余校验码(cyclic redundancy check,CRC)可以由第一加扰码进行加扰,其中,第一加扰码可以为系统信息无线临时标识符(system information radio network temporary identifier,SI-RNTI)。
在一种可能的设计中,当第一控制信息的CRC由第二加扰码加扰时,第一控制信息可以只包括紧急信息通知或该第一控制信息用于指示第一信息或第一控制信息中包括紧急信息,其中第二加扰码可以为SI-RNTI。
在一种可能的设计中,所述紧急信息可以包括如下信息中的一个或多个:ETWS信息、CMAS信息、用于指示系统消息改变的信息。其中,ETWS信息、CMAS信息、用于指示系统消息改变的信息也可以分别称为ETWS指示或ETWS通知(ETWS notification或 ETWSindication)、CMAS指示或CMAS通知(CMAS notification或CMASindication)、系统消息改变指示或系统消息改变通知(system information modification notification或system information modification indication)。
第二方面,本申请实施例提供了一种通信方法,包括:第二设备接收第一设备发送的第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制信息。所述第二设备根据所述第一控制信息中的所述第一信息接收所述紧急信息。
本申请实施例中,第一设备可以通过format 3、format 3A、format 6-0A、format 6-0B、format 6-1A、或format 6-1B的控制信息指示第二设备接收紧急信息。格式为format 3和format 3A的控制信息为群组控制信息,承载在type 0公共搜索空间中,格式为format 6-0A、format 6-0B、format 6-1A和format 6-1B的控制信息为用户特定消息,承载在用户特定搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。
相比于现有技术中在用户特定的控制信息中增加比特来指示紧急信息的方式,本申请实施例中使用的上述这些格式的控制信息,不需要额外增加比特来指示紧急信息,因此可以避免增加控制信息开销,进而可以避免降低频谱效率,以及避免增加用户功耗。
此外,格式为format 3和format 3A的控制信息为群组控制信息,也即第一设备,比如网络设备,可以通过一个控制信息将指示信息发给多个第二设备,比如终端设备,从而避免造成第一设备的资源浪费,节省第一设备的功耗。
在一种可能的设计中,第一控制信息为下行控制信息。
在一种可能的设计中,所述第一控制信息可以为格式3或格式3A的控制信息,所述第一控制信息中的K个TPC command number用于指示所述第一信息,其中K为大于或等于1的整数。其中,TPC command number也可以称为TPC command,每个TPC command包含2比特。上述设计中,可以通过格式3控制信息或格式3A控制信息的TPC command来指示第一信息,使得第一控制信息可以在比特数的情况下指示第一信息,从而不需要额外增加比特来指示紧急信息,因此可以避免增加控制信息开销,进而可以避免降低频谱效率,以及避免增加用户功耗,并且,格式为format 3和format 3A的控制信息为群组控制信息,也即第一设备,比如网络设备,可以通过一个控制信息将指示信息发给多个第二设备,比如终端设备,从而避免造成第一设备的资源浪费,节省第一设备的功耗。此外,format 3、format 3A的控制信息承载在type 0公共搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。并且对现有协议的改动较小。
在上述设计中,该K个TPC command可以不分配给任何第二设备来传输传输功率控制信息,而是用于指示第一信息。
在一种可能的设计中,所述第一控制信息中还可以包括M个TPC command(或TPC command number),所述M个TPC command用于指示H个所述第二设备的发送功控制命令,所述M和H为大于或等于0的整数。
在一种可能的设计中,所述K个TPC command可以为预定义的,或,所述K个TPC command可以为所述第二设备通过接收所述第一设备发送的高层信令确定的。
在一种可能的设计中,所述第一控制信息可以为格式3或格式3A的控制信息,所述第一控制信息中TPC command之外的Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。即,第一控制信息中包括Q个比特和N个TPC command,其中,Q个比特用于指示所述第一信息,N个TPC command用于指示(或传输)多个第二设备的传输功率控制信息。上述设计中,由于格式为format 3和format 3A的控制信息为群组控制信息,也即第一设备,比如网络设备,可以通过一个控制信息将指示信息发给多个第二设备,比如终端设备,从而避免造成第一设备的资源浪费,节省第一设备的功耗。此外,format 3、format 3A的控制信息承载在type 0公共搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗,并且对现有协议的改动较小。
在一种可能的设计中,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中包括Q个比特,该Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。在上述设计中,第一控制信息可以只用于指示紧急信息通知,而可以不用于指示(或传输)传输功率控制信息。
在一种可能的设计中,在第二设备接收第一设备发送的第一控制信息之前,所述第二设备可以接收所述第一设备发送的第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息。通过上述设计,第二设备可以在接收到第二信息后,在第一控制信息中获取第一信息,从而提高获取紧急信息通知的准确性。
在一种可能的设计中,所述第一控制信息可以为格式6-1A或格式6-1B的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第一字段用于指示所述第一信息。上述设计中,格式为format 6-1A和format 6-1B的控制信息为用户特定消息,承载在用户特定搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。并且,上述设计中通过使用格式为format 6-1A和format 6-1B的控制信息的冗余状态来指示紧急信息,可以避免增加控制信息开销,从而可以减小用户功耗,提升系统资源利用率。
在一种可能的设计中,所述第一字段可以为PRACH Mask index字段。
在一种可能的设计中,所述第一控制信息可以为格式6-0B的控制信息,当所述第一控制信息的调制编码方式字段的比特全部设置为1时,所述第一控制信息的第二字段用于指示所述第一信息;或者,所述第一控制信息可以为格式6-0A的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第三字段用于指示所述第一信息。上述设计中,格式为format 6-0A、format 6-0B的控制信息为用户特定消息,承载在用户特定搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。并且,上述设计中通过使用格式为format 6-0A、format 6-0B的控制信息的冗余状态来指示紧急信息,可以避免增加控制信息开销,从而可以减小用户功耗,提升系统资源利用率。
在一种可能的设计中,所述第一控制信息的CRC可以由第一加扰码进行加扰,其中,第一加扰码可以为SI-RNTI。
在一种可能的设计中,当第一控制信息的CRC由第二加扰码加扰时,第一控制信息 可以只包括紧急信息通知或该第一控制信息用于指示第一信息或第一控制信息中包括紧急信息,其中第二加扰码可以为SI-RNTI。
在一种可能的设计中,所述紧急信息可以包括如下信息中一个或多个:ETWS信息、CMAS信息、用于指示系统消息改变的信息。其中,ETWS信息、CMAS信息、用于指示系统消息改变的信息也可以分别称为ETWS指示或ETWS通知(ETWS notification或ETWSindication)、CMAS指示或CMAS通知(CMAS notification或CMASindication)、系统消息改变指示或系统消息改变通知(system information modification notification或system information modification indication)。
第三方面,本申请提供一种装置,该装置可以是第一设备、或者第二设备,还可以是芯片。该装置具有实现上述第一方面、或者第二方面任一实施例的功能。该功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第四方面,提供了一种装置,包括:处理器、通信接口和存储器。通信接口用于该装置与其他装置之间传输信息、和/或消息、和/或数据。该存储器用于存储计算机执行指令,当该装置运行时,该处理器执行该存储器存储的该计算机执行指令,以使该装置执行如上述第一方面或第一方面中任一所述的通信方法、或者上述第二方面或第二方面中任一所述的通信方法。
第五方面,本申请还提供一种系统,该系统包括上述第一方面的任一实施例中的第一设备、上述第二方面的任一实施例中的第二设备。
第六方面,本申请还提供一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述各方面所述的方法。
第七方面,本申请还提供一种包括指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述各方面所述的方法。
图1为本申请实施例提供的一种通信系统的架构示意图;
图2为本申请实施例提供的一种通信方法的流程示意图;
图3为本申请实施例提供的一种通信装置的结构示意图;
图4为本申请实施例提供的一种通信装置的结构示意图。
下面将结合附图对本申请实施例作进一步地详细描述。
本申请提供的通信方法可以应用于各类通信系统中,例如,可以是物联网(internet of things,IoT)、窄带物联网(narrow band internet of things,NB-IoT)、长期演进(long term evolution,LTE),也可以是第五代(5G)通信系统,还可以是LTE与5G混合架构、也可以是5G新无线(newradio,NR)系统、全球移动通信系统(global system for mobile communication,GSM),移动通信系统(universal mobile telecommunications system,UMTS),码分多址接入(code division multiple access,CDMA)系统,以及未来通信发展中出现的新的通信系统等。只要通信系统中存在一个实体可以发送用于调度传输块的控制信息,以 及发送、接收传输块,另一个实体可以接收用于调度传输块的控制信息,以及接收、发送传输块,均可以采用本申请实施例提供的通信方法。
本申请实施例中涉及的终端设备,是一种向用户提供语音和/或数据连通性的设备,例如,具有无线连接功能的手持式设备、车载设备等。终端设备也可以是连接到无线调制解调器的其他处理设备。终端设备可以通过无线接入网(radio access network,RAN)与一个或多个核心网进行通信。终端设备也可以称为无线终端、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户设备(user device)、或用户装备(user equipment)等等。终端设备可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,终端设备还可以是个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(session initiation protocol,SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、等设备。常见的终端设备例如包括:手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备,例如智能手表、智能手环、计步器等,但本申请实施例不限于此。
本申请实施例中所涉及的网络设备,可以用于将收到的空中帧与网络协议(internet protocol,IP)分组进行相互转换,作为终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可以包括IP网络等。网络设备还可以协调对空中接口的属性管理。例如,网络设备可以是全球移动通信系统(global system for mobilecommunication,GSM)或码分多址(code division multiple access,CDMA)中的基站(base transceiver station,BTS),也可以是宽带码分多址(wideband code division multiple access,WCDMA)中的基站(NodeB),还可以是LTE中的演进型基站(evolutional Node B,eNB或e-NodeB),还可以是新无线控制器(new radio controller,NR controller),可以是5G系统中的gNode B(gNB),可以是集中式网元(centralized unit),可以是新无线基站,可以是射频拉远模块,可以是微基站,可以是中继(relay),可以是分布式网元(distributed unit),可以是接收点(transmission reception point,TRP)或传输点(transmission point,TP)或者任何其它无线接入设备,但本申请实施例不限于此。网络设备可以覆盖1个或多个小区。
参阅图1所示,为本申请实施例提供的一种通信系统,该通信系统包括网络设备和六个终端设备,即UE1~UE6。在该通信系统中,UE1~UE6可以发送上行数据给网络设备,网络设备可以接收UE1~UE6发送的上行数据。此外,UE4~UE6也可以组成一个子通信系统。网络设备可以发送下行信息给UE1、UE2、UE3、UE5,UE5可以基于设备到设备(device-to-device,D2D)技术发送下行信息给UE4、UE6。图1仅是一种示意图,并不对通信系统的类型,以及通信系统内包括的设备的数量、类型等进行具体限定。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
在通信系统中,UE可能处于三种状态:空闲(idle)态、非激活态(inactive)和连接 态(connected)。connected态UE可以通过基站动态调度与基站进行通信,传输数据,而对于idle态UE而言,其不能通过基站动态调度来传输数据,需要首先进行随机接入,建立RRC连接以后才能够进行数据的传输,或者是在随机接入过程中的消息3中携带少量的上行数据。Inactive态可以看做是这两种状态的一种中间状态,UE和核心网保留了connected态时无线资源控制(radio resource control,RRC)消息的上下文,因此相比于idle态可以以更快速度的进入connected态。根据目前LTE协议的规定,在UE由RRCconnected态转入idle态的时候,RRC的配置消息是不保留的,但是由connected态转为inactive态的时候是保留RRC消息的上下文的。
目前,第四代通信系统——演进型长期演进系统(long term evolution-advanced,LTE-A)在短期内(甚至长期)仍将为其用户设备(user equipment,UE)继续提供无线通信服务。特别地,增强型机器类通信(enhanced machine type communication,eMTC)系统及其他演化系统(比如,Further eMTC(FeMTC),Even Further eMTC(eFeMTC),additional MTC(AMTC))是在LTE基础上衍生的系统,eMTC系统及其他演化系统在LTE系统中、在LTE频段中进行工作。为了节省功耗,降低成本,eMTC终端的工作带宽通常可能较小,小于LTE系统的工作带宽,例如eMTC终端的工作带宽可以是一个窄带NB,一个NB包括6个连续的物理资源块(physical resourceblock,PRB),一个PRB包括12个子载波(subcarrier,SC)。由于其低功耗、长休眠等特性,eMTC UE的电池寿命较长,预期可达10年左右。
LTE中终端设备通过监测控制信道搜索空间来获得调度信息,进而进行数据调度。LTE中的控制信道搜索空间可以分为用户特定搜索空间和公共搜索空间,用户特定搜索空间是每个用户配置的,每个用户分配一个特定的搜索空间。公共搜索空间是一组用户或一个小区用户都会去监测的搜索空间,一般发送的为小区的公共消息。为了节约终端功耗,降低终端检测复杂度,对于连接态的eMTC终端,只要求检测用户特定搜索空间和用于传输终端组功控的type 0公共搜索空间。而紧急信息(如地震和海啸预警系统(earthquake and tsunami warning system,ETWS)信息、商业流动警报服务(commercial mobile alert service,CMAS)信息、用于指示系统消息改变(system information modification)的信息等)是携带在系统消息中,eMTC终端设备为了节省功耗不会很频繁的更新系统消息,因此遇到紧急消息时,基站需要通知终端设备去接收。现有技术中,紧急信息通知在寻呼消息中或直接指示信息中,但是寻呼消息中或直接指示信息是type2公共搜索空间,eMTC终端设备在连接态不会监测该搜索空间,因此无法在连接态接收紧急消息通知。那么eMTC终端设备只能回退到空闲态接收寻呼消息或直接指示信息来接收紧急信息通知,然后接收紧急信息,这样延时较长且增加终端设备功耗。
针对这个问题,一种可能的解决方案:通过允许连接态的eMTC终端设备同时监测type2搜索空间和用户特定搜索空间,也就是允许eMTC终端设备在连接态时接收寻呼消息或直接指示信息。但是,由于寻呼消息和用户特定搜索空间可能位于不同的窄带上,因此连接态的eMTC终端设备需要同时监测两个窄带,严重增加用户复杂度,增加用户功耗。并且,这种方式对现有协议改动较大。
基于此本申请实施例提供一种通信方法及设备,用于解决现有技术中连接态的eMTC终端设备接收紧急消息通知时复杂度较大,功耗较大的问题。其中,方法和装置是基于同一发明构思的,由于方法及设备解决问题的原理相似,因此装置与方法的实施可以相互参 见,重复之处不再赘述。
本申请实施例中所涉及的多个,是指两个或两个以上。
需要理解的是,在本申请的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。
参见图2,为本申请提供的一种通信方法的流程图。该方法可以应用于图1所示通信系统中的终端设备,该方法包括:
S201,第一设备确定第一控制信息。其中,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式(format)3的控制信息;或者,所述第一控制信息为format3A的控制信息;或者,所述第一控制信息为format6-0A的控制信息;或者,所述第一控制信息为format6-0B的控制信息;或者,所述第一控制信息为format6-1A的控制信息;或者,所述第一控制信息为format6-1B的控制信息。
其中,所述紧急信息可以包括如下信息中一个或多个:ETWS信息、CMAS信息、用于指示system information modification的信息。
本申请实施例中,ETWS信息、CMAS信息、用于指示系统消息改变的信息也可以分别称为ETWS指示或ETWS通知(ETWS notification或ETWSindication)、CMAS指示或CMAS通知(CMAS notification或CMASindication)、系统消息改变指示或系统消息改变通知(system information modification notification或system information modification indication)。。
示例性的,第一控制信息可以为LTE eMTC系统中的下行控制信息,NR系统的下行控制信息等等,这里不做具体限定。为了方便描述,下面以第一控制信息为下行控制信息(downlink control information,DCI)为例。
作为一种示例性说明,所述第一信息在指示紧急信息时具体可以指示紧急信息的类型和/或紧急信息的通知等。
此外,若第一设备确定没有紧急信息,第一设备还可以通过第一控制信息指示没有紧急信息。
其中,第一设备可以为网络设备,第二设备为终端设备。或者,第一设备也可以为终端设备,第二设备为网络设备。或者,第一设备也可以为其他具有发送能力的设备,第二设备可以为其他具有接收能力的设备。
S202,所述第一设备向第二设备发送所述第一控制信息。对应的,第二设备接收所述第一控制信息。
S203,所述第一设备向所述第二设备发送所述紧急信息。
S204,所述第二设备根据所述第一控制信息中的所述第一信息接收所述紧急信息。
本申请实施例中,第一设备可以通过format 3、format 3A、format 6-0A、format 6-0B、format 6-1A、或format 6-1B的控制信息指示第二设备接收紧急信息。格式为format 3和format 3A的控制信息为群组控制信息,承载在type 0公共搜索空间中,格式为format 6-0A、format 6-0B、format 6-1A和format 6-1B的控制信息为用户特定消息,承载在用户特定搜索空间中,因此第二设备对于接收紧急信息不需要监测type2搜索空间,从而可以不增加用户复杂度,降低用户功耗。
相比于现有技术中在用户特定的控制信息中增加比特来指示紧急信息的方式,本申请实施例中使用的上述这些格式的控制信息,不需要额外增加比特来指示紧急信息,因此可 以避免增加控制信息开销,进而可以避免降低频谱效率,以及避免增加用户功耗。
此外,格式为format 3和format 3A的控制信息为群组控制信息,也即第一设备,比如网络设备,可以通过一个控制信息将指示信息发给多个第二设备,比如终端设备,从而避免造成第一设备的资源浪费,节省第一设备的功耗。
一种示例性说明中,所述第一控制信息可以为格式3或格式3A的控制信息,所述第一控制信息中的K个传输功率控制命令编号(transmit power control command number,TPC command number)用于指示所述第一信息,其中K为大于或等于1的整数。其中,该K个TPC command number可以不分配给任何第二设备来传输传输功率控制信息,而是用于指示第一信息。
此外,所述第一下行控制信息中还可以包括M个TPC command number,所述M个TPC command number用于指示M个所述第二设备的传输功率控制命令,或者,所述M个TPC command number用于指示H个所述第二设备的传输功率控制命令,M为大于或等于0的整数,H为大于M的整数。也就是,第一控制信息可以包括K+M个TPC command number,其中的K个TPC command number用于指示第一信息,剩下的M个TPC command number依然用于指示传输功率控制命令。示例性的,剩下的M个TPC command number中一个TPC command number可以指示一个第二设备的传输功率控制命令,也可以指示多个第二设备的传输功率控制命令。
其中,TPC command number也可以称为TPC command。每个TPC command包含2比特。为了方便描述,下面统一称为TPC command。
其中,所述K个TPC command可以为预定义的,例如,第一设备以及第二设备预先定义K个TPC command的数量、索引、编号等。或者,所述K个TPC command为所述第一设备确定,并通过高层信令配置给所述第二设备的,如第一设备可以通过系统信息配置或者无线资源控制(radio resource control,RRC)信令或者媒体接入控制控制元素(media access control control element,MAC CE)信令等高层信令配置K个TPC command的数量、索引、编号等。
下面以K等于1为例对TPC command指示第一信息进行具体说明。一个TPC command包括两个比特,因此TPC command包括四种取值状态,分别为“00”,“01”,“10”,“11”,可以选择任意两种取值状态来分别指示第一信息以及第三信息,如00指示第三信息即没有紧急信息,01指示第一信息即有紧急信息,如表1所示。
表1
取值状态 | 00 | 01 | 10 | 11 |
含义 | 第三信息(没有紧急信息) | 第一信息(有紧急信息) |
或者,也可以选择任意三种取值状态来分别指示第一信息以及第三信息,如00指示第三信息(即没有紧急信息),01指示第一信息(即有紧急信息)且紧急信息为ETWS通知,10指示第一信息(即有紧急信息)且紧急信息为CMAS通知,如表2所示。
表2
或者,也可以用四种取值状态来分别指示第一信息以及第三信息,如00指示第三信 息(即没有紧急信息),01指示第一信息(即有紧急信息)且紧急信息为ETWS通知,10指示第一信息(即有紧急信息)且紧急信息为CMAS通知,11指示第一信息(即有紧急信息)且紧急信息为system information modification通知,如表3-1所示。
表3-1
或者,也可以用2比特指示第一信息以及第三信息,例如两个比特中的其中一个比特用于指示ETWS通知,两个比特中的另外一个比特用于指示CMAS通知,0表示没有该类型的紧急信息,1表示有该类型的紧急信息。如例如,用高位比特指示CMAS通知,低位比特指示CMAS通知,如表3-2所示,则00指示第三信息(即没有紧急信息,也就是既没有ETWS通知也没有CMAS通知),01指示第一信息(即有紧急信息)且紧急信息为ETWS通知,10指示第一信息(即有紧急信息)且紧急信息为CMAS通知,11指示第一信息(即有紧急信息)且紧急信息为ETWS通知和CMAS通知,如表3-3所示。
表3-2
比特 | 1(低位比特) | 2(高位比特) |
含义 | ETWS通知 | CMAS通知 |
表3-3
以K=2为例来说明,两个TPC command包括4个比特,其中可以用3比特指示第一信息以及第三信息,例如3个比特中的第一个比特(最高位比特)用于指示ETWS通知,3个比特中的第二个比特(中间位置的比特)用于指示CMAS通知,3个比特中的第三个比特(最低位比特)用于指示系统消息改变,如表3-4所示。其中,0表示没有该类型的紧急信息,1表示有该类型的紧急信息。如000指示第三信息(即没有紧急信息),010指示第一信息(即有紧急信息)且紧急信息为CMAS通知,100指示第一信息(即有紧急信息)且紧急信息为ETWS通知,110指示第一信息(即有紧急信息)且紧急信息为ETWS通知和CMAS通知,111指示第一信息(即有紧急信息)且紧急信息为ETWS通知、CMAS通知和system information modification通知,001指示第一信息(即有紧急信息)且紧急信息为system information modification通知,101指示第一信息(即有紧急信息)且紧急信息为ETWS通知和system information modification通知,011指示第一信息(即有紧急信息)且紧急信息为CMAS通知和system information modification通知,如表3-5所示。
表3-4
表3-5
应理解,上述表1~表3-5仅是一种示例性说明,并不对第一信息指示的紧急信息的类型、第一信息对应的取值状态、第三信息对应的取值状态等进行具体限定。同时应理解上述表格所的不同比特或不同的状态所对应的具体含义不做具体限定,只要是包含的比特数以及所指示的内容与本申请实施例提供的方法是相同的都是本申请实施例所保护的内容。
另一种示例性说明中,第一控制信息可以为格式3或格式3A的控制信息,所述第一控制信息中TPC command之外的Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。也就是,第一控制信息中包括Q个比特和N个TPC command,其中,Q个比特用于指示所述第一信息,N个TPC command用于指示(或传输)多个第二设备的传输功率控制信息。或者,第一控制信息仅包括Q个比特,此时第一控制信息可以用于指示紧急信息通知,而可以不用于指示(或传输)传输功率控制信息。
例如,Q可以等于1,该1比特有两种取值状态,分别为“0”和“1”,因此,可以通过增加的这1比特取值为0时可以指示第一信息(即有紧急信息),此外,该比特取值为1时还可以指示第三信息(即没有紧急信息)。或者,增加的这1比特取值为1时可以指示第一信息(即有紧急信息),此外,该比特取值为0时还可以指示第三信息(即没有紧急信息)。
又例如,Q也可以等于2,该2比特有四种取值状态,分别为“00”,“01”,“10”,“11”,因此,可以通过增加的这2比特指示第一信息以及第三信息,通过增加两个比特来指示第一信息的方式具体可以参阅TPC command通过不同取值状态来指示第一信息的方式,如表1~表3-1所示,这里不再重复赘述。或者,该2比特指示第一信息以及第三信息时,具体可以通过两个比特分别指示两种类型的紧急信息,两个比特分别指示两种类型的紧急信息的方式,具体可以参阅TPC command通过2个比特指示两种类型的紧急信息的方式,如表3-2~表3-3所示,这里不再重复赘述。
又例如,Q也可以等于3,3比特指示第一信息以及第三信息时,具体可以通过三个比特分别指示三种类型的紧急信息,三个比特分别指示两种类型的紧急信息的方式,具体可以参阅TPC command通过3个比特指示三种类型的紧急信息的方式,如表3-4~表3-5所示,这里不再重复赘述。
在具体实施中,在所述第一设备向第二设备发送所述第一控制信息之前,所述第一设备还可以确定第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息,并向所述第二设备发送所述第二信息。从而第二设备在接收到第二信息后,可以确定在第一控制信息中获取第一信息。
再一种示例性说中,所述第一控制信息还可以为格式6-1A或格式6-1B的控制信息,当所述第一控制信息的资源块分配字段(resource block assignment)的比特全部设置为1时,所述第一控制信息的第一字段可以用于指示所述第一信息。
在具体实施中,所述第一字段可以为物理随机接入信道掩码索引(physical random access channel mask index,PRACH Mask index)字段。
作为一种示例,在频分双工(frequency division duplex,FDD)时第一字段可以在取值为13或14或15时指示有紧急信息。或者第一字段可以在13、14、15中选择任意两个取值状态分别指示两个紧急信息通知,其中,两个紧急信息通知可以为ETWS通知、CMAS通知、system info modification通知中的任意两个紧急信息通知,如13指示ETWS通知,14指示CMAS通知。或者,或者第一字段可以通过13、14、15这三个取值状态分别指示三个紧急信息通知,其中,三个紧急信息通知可以分别为ETWS通知、CMAS通知、system info modification通知,如13指示ETWS通知,14指示CMAS通知,15指示system info modification通知,如表4所示。
作为另一种示例,在时分双工时第一字段可以在取值为7或8或9时指示有紧急信息。或者第一字段可以在7、8、9中选择任意两个取值状态分别指示两个紧急信息通知,其中,两个紧急信息通知可以为ETWS通知、CMAS通知、system info modification通知中的任意两个紧急信息通知,如7指示ETWS通知,8指示CMAS通知。或者,或者第一字段可以通过7、8、9这三个取值状态分别指示三个紧急信息通知,其中,三个紧急信息通知可以分别为ETWS通知、CMAS通知、system info modification通知,如7指示ETWS通知,8指示CMAS通知,9指示system info modification通知,如表4所示。
表4
另外一种示例性说明中,所述第一控制信息可以为格式6-0B的控制信息,当所述第一控制信息的MCS字段的比特全部设置为1时,所述第一控制信息的第二字段用于指示 所述第一信息。
具体实施中,第二字段可以为第一控制信息中除MCS字段以及上下行区分标志位(Flag for format 6-0B/format 6-1B differentiation)以外的任一字段。
在一些实施例中,第二字段可以通过不同的状态来指示第一信息。具体的,第二字段可以通过第一状态来指示第一信息,其中,第一状态可以包括一个或多个状态。若第一状态包括一个状态,则该状态可以指示第一信息(即有紧急信息)。若第一状态包括两个状态,则这两个状态可以分别指示两个类型的紧急信息通知,若第一状态包括三个状态,则这三个状态可以分别指示三个类型的紧急信息通知。其中,第一状态中每个状态可以至少包括一个比特的取值为1。
下面以第一字段为重复次数(repetition number)字段。repetition number字段可以通过一个取值状态来指示第一信息,如,repetition number字段取值为111时指示第一信息(即有紧急信息)。repetition number字段可以通过两个取值状态来指示第一信息,如,repetition number字段取值为111时指示第一信息(即有紧急信息)且紧急信息的类型为ETWS,repetition number字段取值为110时指示第一信息(即有紧急信息)且紧急信息的类型为CMAS。repetition number字段可以通过3个取值状态来指示第一信息,如,repetition number字段取值为111时指示第一信息(即有紧急信息)且紧急信息的类型为ETWS,repetition number字段取值为110时指示第一信息(即有紧急信息)且紧急信息的类型为CMAS,repetition number字段取值为100时指示第一信息(即有紧急信息)且紧急信息的类型为system info modification。需要说明的是,这里仅为一种示例性说明,并不对第一字段的类型、第一状态所包括状态的数量、紧急信息的类型、每个紧急信息的类型对应的取值状态等进行具体限定。
在另一些实施例中,第二字段可以通过不同的比特位来指示第一信息。第二字段通过不同比特位指示第一信息的方式,具体可以TPC command通过不同比特指示两种类型的紧急信息的方式,如第二字段通过2个比特分别指示两种类型的紧急信息的方式,具体可以参阅TPC command通过2个比特指示两种类型的紧急信息的方式,如表3-2~表3-3所示,这里不再重复赘述。第二字段通过3个比特分别指示两种类型的紧急信息的方式,具体可以参阅TPC command通过3个比特指示三种类型的紧急信息的方式,如表3-4~表3-5所示,这里不再重复赘述。
再一种示例性说明中,所述第一控制信息可以为格式6-0A的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第三字段用于指示所述第一信息。
在具体实施中,第三字段可以为第一控制信息中除resource block assignment以及上下行区分字段(Flag for format 6-0A/format 6-1A differentiation)以外的任一字段。
在一些实施例中,第三字段可以通过不同的状态来指示第一信息。具体的,第三字段可以通过第一状态来指示第一信息,其中,第一状态可以包括一个或多个状态。若第一状态包括一个状态,则该状态可以指示第一信息(即有紧急信息)。若第一状态包括两个状态,则这两个状态可以分别指示两个类型的紧急信息,若第一状态包括三个状态,则这三个状态可以分别指示三个类型的紧急信息。其中,第一状态中每个状态可以至少包括一个比特的取值为1。
下面以第三字段为调制和编码方案(modulation and coding scheme,MCS)字段,MCS 字段可以通过一个取值状态来指示第一信息,如,MCS字段取值为111时指示第一信息(即有紧急信息)。MCS字段可以通过两个取值状态来指示第一信息,如,MCS字段取值为111时指示第一信息(即有紧急信息)且紧急信息的类型为ETWS,MCS字段取值为110时指示第一信息(即有紧急信息)且紧急信息的类型为CMAS。MCS字段可以通过3个取值状态来指示第一信息,如,MCS字段取值为111时指示第一信息(即有紧急信息)且紧急信息的类型为ETWS,MCS字段取值为110时指示第一信息(即有紧急信息)且紧急信息的类型为CMAS,MCS字段取值为100时指示第一信息(即有紧急信息)且紧急信息的类型为system info modification。需要说明的是,这里仅为一种示例性说明,并不对第一字段的类型、第一状态所包括状态的数量、紧急信息的类型、每个紧急信息的类型对应的取值状态等进行具体限定。
在另一些实施例中,第三字段可以通过不同的比特位来指示第一信息。第三字段通过不同比特位指示第一信息的方式,具体可以TPC command通过不同比特指示两种类型的紧急信息的方式,如第三字段通过2个比特分别指示两种类型的紧急信息的方式,具体可以参阅TPC command通过2个比特指示两种类型的紧急信息的方式,如表3-2~表3-3所示,这里不再重复赘述。第三字段通过3个比特分别指示两种类型的紧急信息的方式,具体可以参阅TPC command通过3个比特指示三种类型的紧急信息的方式,如表3-4~表3-5所示,这里不再重复赘述。
作为一种可能的实施方式,上述几种示例性说明中,所述第一控制信息的循环冗余校验码(cyclic redundancy check,CRC)可以由第一加扰码进行加扰,其中,第一加扰码可以为系统信息无线网络临时标识(system information radio network temporary identifier,SI-RNTI)。
一种示例性说明中,当第一控制信息的CRC由第二加扰码加扰时,第一控制信息可以只包括紧急信息通知或者第一控制信息包括紧急信息通知或该第一控制信息用于指示或传输第一信息,其中第二加扰码可以为SI-RNTI。
又一种示例性说明中,当第一控制信息的CRC由SI-RNTI进行加扰时,第一控制信息中的第四字段可以用于指示第一信息,其中,第四字段可以为第一控制信息中的任意字段。
基于与方法实施例的同一发明构思,本申请实施例提供一种通信装置,该通信装置的结构可以如图3所示,包括处理单元301和收发单元302。
一种具体实施方式中,该装置具体用于实现图2所述实施例中第一设备的功能,该装置可以是第一设备本身,也可以是第一设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。具体的,处理单元301,用于确定第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制信息。收发单元302,用于向第二设备发送所述处理单元301确定的所述第一控制信息;以及,向所述第二设备发送所述紧急信息。
其中,所述紧急信息可以包括如下信息中一个或多个:ETWS通知、CMAS通知、用于指示系统消息改变的通知。
一种示例性说明中,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的K个TPC command number可以用于指示所述第一信息,其中K为大于或等于1的整数。
其中,所述K个TPC command number可以为预定义的,或,所述K个TPC command number可以为所述第一设备确定,并通过高层信令配置给所述第二设备。
另一种示例性说明中,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中TPC command number之外的Q个比特可以用于指示所述第一信息,其中Q为大于或等于1的整数。
一种实现方式中,所述处理单元301,还可以用于:在所述收发单元302向第二设备发送所述第一控制信息之前,确定第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息。所述收发单元302,还可以用于:向所述第二设备发送所述处理单元301确定的所述第二信息。
又一种示例性说明中,,所述第一控制信息为格式6-1A或格式6-1B的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第一字段可以用于指示所述第一信息。
再一种示例性说明中,所述第一字段可以为PRACH Mask index字段。
还有一种示例性说明中,所述第一控制信息为格式6-0B的控制信息,当所述第一控制信息的调制编码方式字段的比特全部设置为1时,所述第一控制信息的第二字段可以用于指示所述第一信息;或者,所述第一控制信息为格式6-0A的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第三字段可以用于指示所述第一信息。
在一些实施例中,所述第一控制信息的CRC由SI-RNTI进行加扰。
另一种具体实施方式中,该装置具体用于实现图2所述实施例中第二设备的功能,该装置可以是第二设备本身,也可以是第二设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。具体的,收发单元302,用于接收数据;处理单元301,用于控制所述收发单元302接收第一设备发送的第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制信息;以及,根据所述第一控制信息中的所述第一信息控制所述收发单元302接收所述紧急信息。
其中,所述紧急信息可以包括如下信息中一个或多个:ETWS通知、CMAS通知、用于指示系统消息改变的通知。
一种示例性说明中,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的K个TPC command number可以用于指示所述第一信息,其中K为大于或等于1的整数。
其中,所述K个TPC command number可以为预定义的,或,所述K个TPC command number也可以为所述第二设备通过接收所述第一设备发送的高层信令确定的。
又一种示例性说明中,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的Q个比特可以用于指示所述第一信息,其中Q为大于或等于1的整数。
一种实现方式中,所述处理单元301,还可以用于:在控制所述收发单元302接收第一设备发送的第一控制信息之前,控制所述收发单元302接收所述第一设备发送的第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息。
再一种示例性说明中,所述第一控制信息为格式6-1A或格式6-1B的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第一字段可以用于指示所述第一信息。
进一步的,所述第一字段可以为PRACH Mask index字段。
另一种示例性说明中,所述第一控制信息为格式6-0B的控制信息,当所述第一控制信息的调制编码方式字段的比特全部设置为1时,所述第一控制信息的第二字段可以用于指示所述第一信息;或者,所述第一控制信息为格式6-0A的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第三字段可以用于指示所述第一信息。
在一些实施例中,所述第一控制信息的CRC由SI-RNTI进行加扰。
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,另外,在本申请各个实施例中的各功能模块可以集成在一个处理器中,也可以是单独物理存在,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。
其中,集成的模块既可以采用硬件的形式实现时,通信装置可以如图4所示,处理单元301可以为处理器402。处理器402,可以是一个CPU,或者为数字处理模块等等。收发单元302可以为通信接口401,通信接口401可以是收发器、也可以为接口电路如收发电路等、也可以为收发芯片等等。该网络设备还包括:存储器403,用于存储处理器801执行的程序。存储器403可以是非易失性存储器,比如HDD或SSD等,还可以是volatile memory,例如RAM。存储器403是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。
处理器402用于执行存储器403存储的程序代码,具体用于执行上述处理单元301的动作,本申请在此不再赘述。
本申请实施例中不限定上述通信接口401、处理器402以及存储器403之间的具体连接介质。本申请实施例在图4中以存储器403、处理器402以及通信接口401之间通过总线404连接,总线在图4中以粗线表示,其它部件之间的连接方式,仅是进行示意性说明,并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示,图4中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样,倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。
Claims (31)
- 一种通信方法,其特征在于,包括:第一设备确定第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制信息;所述第一设备向第二设备发送所述第一控制信息;所述第一设备向所述第二设备发送所述紧急信息。
- 根据权利要求1所述的方法,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的K个传输功率控制命令TPC command用于指示所述第一信息,其中K为大于或等于1的整数。
- 根据权利要求2所述的方法,其特征在于,所述K个TPC command为预定义的,或,所述K个TPC command为所述第一设备确定,并通过高层信令配置给所述第二设备。
- 根据权利要求1所述的方法,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中TPC command之外的Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。
- 根据权利要求2至4任一项所述的方法,其特征在于,在所述第一设备向第二设备发送所述第一控制信息之前,所述方法还包括:所述第一设备确定第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息;所述第一设备向所述第二设备发送所述第二信息。
- 一种通信方法,其特征在于,包括:第二设备接收第一设备发送的第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制信息;所述第二设备根据所述第一控制信息中的所述第一信息接收所述紧急信息。
- 根据权利要求6所述的方法,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的K个传输功率控制命令TPC command用于指示所述第一信息,其中K为大于或等于1的整数。
- 根据权利要求7所述的方法,其特征在于,所述K个TPC command为预定义的,或,所述K个TPC command为所述第二设备通过接收所述第一设备发送的高层信令确定的。
- 根据权利要求6所述的方法,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的Q个比特用于指示所述第一信息,其中Q为大于或等 于1的整数。
- 根据权利要求7至9任一项所述的方法,其特征在于,在第二设备接收第一设备发送的第一控制信息之前,所述方法还包括:所述第二设备接收所述第一设备发送的第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息。
- 根据权利要求1或6所述的方法,其特征在于,所述第一控制信息为格式6-1A或格式6-1B的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第一字段用于指示所述第一信息。
- 根据权利要求11所述的方法,其特征在于,所述第一字段为物理随机接入信道掩码索引PRACH Mask index字段。
- 根据权利要求1或6所述的方法,其特征在于,所述第一控制信息为格式6-0B的控制信息,当所述第一控制信息的调制编码方式字段的比特全部设置为1时,所述第一控制信息的第二字段用于指示所述第一信息;或者,所述第一控制信息为格式6-0A的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第三字段用于指示所述第一信息。
- 根据权利要求1至13任一项所述的方法,其特征在于,所述第一控制信息的循环冗余校验码CRC由系统信息无线网络临时标识SI-RNTI进行加扰。
- 根据权利要求1至14任一项所述的方法,其特征在于,所述紧急信息包括如下信息中一个或多个:地震和海啸预警系统ETWS通知、商业流动警报服务CMAS通知、系统消息改变通知。
- 一种通信装置,其特征在于,所述装置应用于第一设备,包括:处理单元,用于确定第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制信息;收发单元,用于向第二设备发送所述处理单元确定的所述第一控制信息;以及,向所述第二设备发送所述紧急信息。
- 根据权利要求16所述的装置,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的K个传输功率控制命令编号TPC command number用于指示所述第一信息,其中K为大于或等于1的整数。
- 根据权利要求17所述的装置,其特征在于,所述K个TPC command number为预定义的,或,所述K个TPC command number为所述第一设备确定,并通过高层信令配置给所述第二设备。
- 根据权利要求16所述的装置,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中TPC command number之外的Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。
- 根据权利要求17至19任一项所述的装置,其特征在于,所述处理单元,还用于:在所述收发单元向第二设备发送所述第一控制信息之前,确定第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息;所述收发单元,还用于:向所述第二设备发送所述处理单元确定的所述第二信息。
- 一种通信装置,其特征在于,所述装置应用于第二设备,包括:收发单元,用于接收数据;处理单元,用于控制所述收发单元接收第一设备发送的第一控制信息,所述第一控制信息携带第一信息,所述第一信息用于指示紧急信息;所述第一控制信息为格式3的控制信息;或者,所述第一控制信息为格式3A的控制信息;或者,所述第一控制信息为格式6-0A的控制信息;或者,所述第一控制信息为格式6-0B的控制信息;或者,所述第一控制信息为格式6-1A的控制信息;或者,所述第一控制信息为格式6-1B的控制信息;以及,根据所述第一控制信息中的所述第一信息控制所述收发单元接收所述紧急信息。
- 根据权利要求21所述的装置,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的K个传输功率控制命令编号TPC command number用于指示所述第一信息,其中K为大于或等于1的整数。
- 根据权利要求22所述的装置,其特征在于,所述K个TPC command number为预定义的,或,所述K个TPC command number为所述第二设备通过接收所述第一设备发送的高层信令确定的。
- 根据权利要求21所述的装置,其特征在于,所述第一控制信息为格式3或格式3A的控制信息,所述第一控制信息中的Q个比特用于指示所述第一信息,其中Q为大于或等于1的整数。
- 根据权利要求22至24任一项所述的装置,其特征在于,所述处理单元,还用于:在控制所述收发单元接收第一设备发送的第一控制信息之前,控制所述收发单元接收所述第一设备发送的第二信息,所述第二信息用于指示所述第一控制信息包含所述第一信息。
- 根据权利要求16或21所述的装置,其特征在于,所述第一控制信息为格式6-1A或格式6-1B的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第一字段用于指示所述第一信息。
- 根据权利要求26所述的装置,其特征在于,所述第一字段为物理随机接入信道掩码索引PRACH Mask index字段。
- 根据权利要求16或21所述的装置,其特征在于,所述第一控制信息为格式6-0B的控制信息,当所述第一控制信息的调制编码方式字段的比特全部设置为1时,所述第一控制信息的第二字段用于指示所述第一信息;或者,所述第一控制信息为格式6-0A的控制信息,当所述第一控制信息的资源块分配字段的比特全部设置为1时,所述第一控制信息的第三字段用于指示所述第一信息。
- 根据权利要求16至28任一项所述的装置,其特征在于,所述第一控制信息的循环冗余校验码CRC由系统信息无线网络临时标识SI-RNTI进行加扰。
- 根据权利要求16至29任一项所述的装置,其特征在于,所述紧急信息包括如下 信息中一个或多个:地震和海啸预警系统ETWS通知、商业流动警报服务CMAS通知、用于指示系统消息改变的通知。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储程序,所述程序在被一个或多个处理器读取并执行时可实现权利要求1至15任一项所述的方法。
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