WO2021031045A1 - Communication method and device - Google Patents

Communication method and device Download PDF

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Publication number
WO2021031045A1
WO2021031045A1 PCT/CN2019/101222 CN2019101222W WO2021031045A1 WO 2021031045 A1 WO2021031045 A1 WO 2021031045A1 CN 2019101222 W CN2019101222 W CN 2019101222W WO 2021031045 A1 WO2021031045 A1 WO 2021031045A1
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WO
WIPO (PCT)
Prior art keywords
information
cell
pdcch
terminal device
mode
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PCT/CN2019/101222
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French (fr)
Chinese (zh)
Inventor
肖洁华
李新县
唐浩
王轶
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/101222 priority Critical patent/WO2021031045A1/en
Priority to CN201980099274.1A priority patent/CN114270945A/en
Publication of WO2021031045A1 publication Critical patent/WO2021031045A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of wireless communication technology, and in particular to a communication method and device.
  • a network device can send downlink control information (downlink control information, DCI) to a terminal device through a physical downlink control channel (PDCCH).
  • DCI downlink control information
  • the network device can configure the terminal device to send the search space set (search space set) corresponding to the DCI through high-level signaling, but does not notify the terminal device on which candidate PDCCH or candidates in the search space set to send the DCI; accordingly; , The terminal device needs to blindly detect the PDCCH in the search space.
  • the terminal device consumes a large amount of power consumption.
  • the purpose of the embodiments of this application is to provide a communication method and device for quickly recovering the function of monitoring the PDCCH of the first cell.
  • the embodiments of the present application provide a communication method, which may be executed by a terminal device, or may also be executed by a chip set in the terminal device.
  • the method may include:
  • the terminal device receives configuration information sent by the network device, where the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, the at least one mode includes the first mode, and the first mode is included in the second cell
  • the control channel of the first cell is monitored on the terminal device; the terminal device receives the first information sent by the network device, and the first information is used to indicate the cross-cell monitoring control channel; the terminal device monitors the first cell on the second cell The control channel of the cell.
  • the cross-cell monitoring PDCCH can be activated flexibly, so that the terminal device can flexibly switch the PDCCH monitoring on different cells in the CA (and/or DC) mode, and save the power consumption of the terminal device.
  • the terminal device receiving information (such as configuration information or first information or other possible information) sent by the network device can also be described as the terminal device receiving information from the network device.
  • the at least one mode includes two or more than two modes; the method further includes: the terminal device receives the second information sent by the network device, and the second information uses The mode for indicating the cross-cell monitoring control channel is the first mode.
  • the terminal device receiving the first information and/or the second information sent by the network device includes: the terminal device receives the first DCI sent by the network device, and the The first DCI includes the first information and/or the second information.
  • the terminal device since the DCI is directly sent through the physical layer information, the terminal device receives the first information and/or the second information with a shorter time delay and a faster response.
  • one or more of the following fields in the first DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and Coding mode indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
  • the first DCI further includes third information; wherein, the third information is used to indicate that the PDCCH of the first cell is not monitored on the first cell, or the The third information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
  • the receiving, by the terminal device, the first DCI sent by the network device includes: the terminal device receiving the first DCI sent by the network device on the first cell.
  • the terminal device receiving the first information and/or the second information sent by the network device includes: the terminal device receiving the first media access control unit MAC sent by the network device CE, the first MAC CE includes the first information and/or the second information.
  • the terminal device can receive the first information and/or the second information reliably. High sex.
  • the MAC subheader corresponding to the first MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information. information.
  • the method further includes: the terminal device receives fourth information sent by the network device, where the fourth information is used to instruct to monitor the control channel across cells.
  • the terminal device receiving the fourth information sent by the network device includes: the terminal device receiving the second DCI sent by the network device, and the second DCI includes the fourth information.
  • the second DCI further includes fifth information; the fifth information is used to indicate a period for monitoring the PDCCH of the first cell on the first cell.
  • that the terminal device receives the second DCI sent by the network device includes: the terminal device receives the second DCI sent by the network device on the second cell.
  • the terminal device receiving the fourth information sent by the network device includes: the terminal device receiving the second MAC CE sent by the network device, and the second MAC CE includes the fourth information.
  • the MAC subheader corresponding to the second MAC CE includes a second LCID, and the second LCID is used to indicate that the second MAC CE includes the fourth information.
  • the embodiments of the present application provide a communication method, which may be executed by a network device, or may also be executed by a chip provided in the network device.
  • the method may include:
  • the network device sends configuration information to the terminal device, the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, the at least one mode includes the first mode, and the first mode is included in the second cell Monitor the control channel of the first cell; the network device sends first information to the terminal device, and the first information is used to indicate the cross-cell monitoring control channel.
  • the at least one mode includes two or more than two modes; the method further includes: the network device sends second information to the terminal device, and the second information is used for The mode indicating the cross-cell monitoring control channel is the first mode.
  • the sending, by the network device, the first information and/or the second information to the terminal device includes: the network device sending the first downlink control information DCI to the terminal device,
  • the first DCI includes the first information and/or the second information.
  • one or more of the following fields in the first DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and Coding mode indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
  • the first DCI further includes third information; wherein, the third information is used to indicate that the PDCCH of the first cell is not monitored on the first cell, or the The third information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
  • the sending, by the network device, the first DCI to the terminal device includes: the network device sending the first DCI to the terminal device on the first cell.
  • the sending, by the network device, the first information and/or the second information to the terminal device includes: the network device sending a first MAC CE to the terminal device, and the first A MAC CE includes the first information and/or the second information.
  • the MAC subheader corresponding to the first MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information. information.
  • the method further includes: the network device sends fourth information to the terminal device, where the fourth information is used to instruct to monitor the control channel across cells.
  • the sending of the fourth information by the network device to the terminal device includes: the network device sending a second DCI to the terminal device, and the second DCI includes the fourth information.
  • the second DCI further includes fifth information; the fifth information is used to indicate a period for monitoring the PDCCH of the first cell on the first cell.
  • the sending of the second DCI by the network device to the terminal device includes: the second DCI sent by the network device to the terminal device on the second cell.
  • the sending of the fourth information by the network device to the terminal device includes: the network device sends a second MAC CE to the terminal device, and the second MAC CE includes the fourth information.
  • the MAC subheader corresponding to the second MAC CE includes a second LCID, and the second LCID is used to indicate that the second MAC CE includes the fourth information.
  • an embodiment of the present application provides a device that has the function of implementing the terminal device involved in the first aspect.
  • the device includes a module corresponding to the terminal device executing the steps involved in the first aspect.
  • a unit or means (means), the function or unit or means can be realized by software, or by hardware, or by hardware executing corresponding software.
  • the device includes a processing unit and a communication unit, and the functions performed by the processing unit and the communication unit may correspond to the steps performed by the terminal device involved in the first aspect.
  • the device includes a processor, and may also include a transceiver.
  • the transceiver is used to send and receive signals, and the processor executes program instructions to complete any possible design or implementation in the first aspect. The method executed by the terminal device in the mode.
  • the apparatus may further include one or more memories, and the memories are used for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory stores the necessary computer program instructions and/or data to realize the functions of the terminal device involved in the first aspect.
  • the processor can execute the computer program instructions stored in the memory to complete the method executed by the terminal device in any possible design or implementation of the first aspect.
  • an embodiment of the present application provides a device that has the function of implementing the network device involved in the second aspect.
  • the device includes a module corresponding to the network device executing the steps involved in the second aspect.
  • a unit or means (means), the function or unit or means can be realized by software, or by hardware, or by hardware executing corresponding software.
  • the device includes a processing unit and a communication unit, and the functions performed by the processing unit and the communication unit may correspond to the steps performed by the network device involved in the second aspect.
  • the device includes a processor, and may also include a transceiver.
  • the transceiver is used to send and receive signals, and the processor executes program instructions to complete any possible design or implementation in the second aspect. The method executed by the network device in the mode.
  • the apparatus may further include one or more memories, and the memories are used for coupling with the processor.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
  • the memory stores necessary computer program instructions and/or data for realizing the functions of the network device involved in the second aspect.
  • the processor can execute the computer program instructions stored in the memory to complete the method executed by the network device in any possible design or implementation of the second aspect.
  • an embodiment of the present application provides a computer-readable storage medium, which stores computer-readable instructions.
  • the computer reads and executes the computer-readable instructions, the computer is caused to execute the first Any one of the possible design methods of the aspect and the second aspect.
  • the embodiments of the present application provide a computer program product.
  • the computer reads and executes the computer program product, the computer executes any one of the possible design methods of the first aspect and the second aspect.
  • an embodiment of the present application provides a chip, which is connected to a memory, and is used to read and execute a software program stored in the memory, so as to realize any one of the above-mentioned first and second aspects. Method of design.
  • an embodiment of the present application provides a communication system, including a terminal device in any possible design of the foregoing first aspect and a network device in any possible design of the foregoing second aspect.
  • Figure 1a is a schematic diagram of a possible system architecture to which an embodiment of this application is applicable;
  • FIG. 1b is a schematic diagram of another possible system architecture to which the embodiments of this application are applicable;
  • FIG. 2 is a schematic structural diagram of a MAC CE provided by an embodiment of this application.
  • FIG. 3 is a schematic structural diagram of another MAC CE provided by an embodiment of this application.
  • FIG. 4 is a schematic diagram of a process corresponding to the communication method provided in Embodiment 1 of this application;
  • FIG. 5 is a schematic flowchart corresponding to the communication method provided in the second embodiment of the application.
  • Fig. 6 is a possible exemplary block diagram of a device involved in an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a device provided by an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • Terminal device It can be a wireless terminal device that can receive network device scheduling and instruction information.
  • a wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or Other processing equipment connected to the wireless modem.
  • the terminal device can communicate with one or more core networks or the Internet via a radio access network (e.g., radio access network, RAN).
  • the terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone, mobile phone). (mobile phone)), computers and data cards, for example, may be portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • the terminal device can also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G network or a terminal device in a future evolution public land mobile network (PLMN) network, and a terminal in the NR communication system Equipment etc.
  • PLMN public land mobile network
  • the network equipment It is an entity used to transmit or receive signals on the network side.
  • the network equipment may be a device used to communicate with mobile devices.
  • the network equipment can be an AP in a wireless local area network (WLAN), an evolved base station (evolutional Node B, eNB, or eNodeB) in a long term evolution (LTE), or a relay station or an access point , Or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or the network equipment in the future evolved public land mobile network (PLMN) network, or the generation Node B in the NR system , GNodeB) etc.
  • WLAN wireless local area network
  • eNB evolved base station
  • eNodeB long term evolution
  • LTE long term evolution
  • PLMN public land mobile network
  • the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the communication resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a network equipment. (E.g. base station)
  • the corresponding cell the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: Metro cell, Micro cell, and Pico cell (Pico cell), femto cell (Femto cell), etc., these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • the network device may be another device that provides wireless communication functions for the terminal device.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • a device that provides a wireless communication function for a terminal device is called a network device.
  • CA Carrier aggregation
  • the aggregated multiple cells include a primary cell (primary cell, PCell), and the carrier unit corresponding to the PCell is called a primary component carrier unit (PCC).
  • the downlink carrier of the primary carrier unit is called the downlink PCC (DL PCC)
  • the uplink carrier of the primary carrier unit is called the uplink PCC (UL PCC).
  • the aggregated multiple cells include one or more secondary cells (secondary cells, SCells).
  • the carrier unit corresponding to the SCell is called a secondary component carrier (SCC).
  • SCC secondary component carrier
  • the downlink carrier of the secondary carrier unit is called a downlink secondary carrier unit (downlink SCC, DL SCC)
  • uplink carrier of the secondary carrier unit is called an uplink secondary carrier unit (uplink SCC, UL SCC).
  • PCell is determined when the connection establishment between the terminal device and the network side is established, and is responsible for the RRC communication with the terminal device; the SCell is after the initial security activation procedure, through the RRC connection reconfiguration message ( RCC connection reconfiguration) is added/modified/released, and is used to provide additional radio resources. There is no important RRC communication between the SCell and the terminal device (such as the establishment and release of the RRC connection).
  • the terminal device supports simultaneous access to two network devices. This access method is called DC, where one network device is the main network device and the other network device is the auxiliary network device .
  • the primary network device may also be called a master node (master node, MN), and the secondary network device may also be called a secondary node (secondary node, SN).
  • the primary network equipment is one of LTE network equipment (such as eNB), 5G network equipment (such as gNB) or future communication network equipment
  • the auxiliary network equipment is also LTE network equipment, 5G network equipment or future communication network.
  • One of the devices, and the main network device and the auxiliary network device may be network devices of the same standard, such as both eNBs, or network devices of different standards, for example, the main network device is an eNB, and the auxiliary network device is a gNB.
  • This application does not limit the communication standards of the main network device and the auxiliary network device.
  • the cell group managed by the primary network device is called the master cell group (master cell group, MCG), and the cell group managed by the secondary network device is called the secondary cell group (secondary cell group, SCG), and the MCG may include one or Multiple carriers. If multiple carriers are included, these carriers can serve the terminal equipment through CA.
  • the SCG can include one or more carriers. If multiple carriers are included, these carriers can be connected through CA. Ways to serve terminal equipment.
  • Control channel The control channel involved in the embodiments of this application may be a downlink control channel, such as a physical downlink control channel (PDCCH), or an enhanced physical downlink control channel, ePDCCH), or other possible downlink control channels, which are not specifically limited.
  • the control channel is mainly PDCCH as an example for description.
  • each downlink carrier corresponds to an independent cell, or, it can also be said that a cell contains one downlink carrier, usually one downlink carrier can be equivalent In 1 cell.
  • a cell may include one downlink carrier, may also include one downlink carrier and one uplink carrier, and may also include one downlink carrier and multiple uplink carriers.
  • the concepts of carrier and cell can be interchanged.
  • BWP In the 5G communication system, in order to adapt to the bandwidth capability of the terminal equipment, the bandwidth supported by a carrier (can be called carrier bandwidth, the specific value can be 10MHz, 15MHz, 20MHz, 50MHz, 100MHz or 400MHz) Etc.) BWP is configured for the terminal device, and multiple BWPs can be configured in one carrier, for example, four BWPs can be configured in one carrier. BWP is sometimes called carrier bandwidth part, subband bandwidth, narrowband bandwidth, or other names. This application does not limit the name. For ease of description, the name is BWP Take an example.
  • a BWP includes K (K>0) subcarriers; or, a BWP is a frequency domain resource where N non-overlapping RBs are located, and the subcarrier spacing of the RB can be 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, 480KHz Or other values; or, a BWP is a frequency domain resource where M non-overlapping resource block groups (RBG) are located.
  • RBG includes P (P>0) consecutive RBs, and the children of this RB Subcarrier spacing (SCS) may be 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, 480KHz or other values, for example, an integer multiple of 2.
  • the network device can activate one of the BWPs for the terminal device to communicate.
  • the BWP when the BWP is introduced, monitoring the PDCCH of the first cell on the second cell involved in the embodiments of the present application can be understood as monitoring the PDCCH of the BWP of the first cell on the activated BWP of the second cell.
  • At least one means one or more, and “plurality” means two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • at least one item (a) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • ordinal numbers such as "first" and "second” mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or importance of multiple objects. degree.
  • first information and the second information are only used to distinguish different information, but do not indicate the difference in priority or importance of the two types of information.
  • FIG. 1a is a schematic diagram of a possible system architecture to which an embodiment of this application is applicable.
  • the system architecture shown in FIG. 1a includes a network device 101 and a terminal device 102.
  • the network device 101 has multiple cells (for example, a cell 1a and a cell 2a), and the multiple cells serve the terminal device 102 in a CA manner.
  • the system architecture shown in Figure 1a can be understood as a CA architecture.
  • FIG. 1b is a schematic diagram of another possible system architecture to which the embodiments of this application are applicable.
  • the system architecture shown in FIG. 1b includes a network device 1011, a network device 1012, and a terminal device 102.
  • the network device 1011 and the network device 1012 jointly serve the terminal device 102, where the network device 1011 is the main network device and the network device 1012 is the auxiliary network device, or the network device 1011 is the auxiliary network device and the network device 1012 is the main network device,
  • the details are not limited.
  • the system architecture shown in Figure 1b can be understood as a DC architecture.
  • the network device 1011 may have multiple cells (such as a cell 1b and a cell 2b), and the multiple cells serve the terminal device 102 in a CA manner.
  • the network device 1012 may also have multiple cells (for example, a cell 3b and a cell 4b), and the multiple cells serve the terminal device 102 in a CA manner.
  • the system architecture shown in Figure 1b can be understood as a DC+CA architecture.
  • the embodiment of the present application does not limit the number of network devices and the number of terminal devices in the system architecture, and the system architecture to which the embodiment of the present application applies except for the network
  • other devices may also be included, such as core network devices, wireless relay devices, and wireless backhaul devices, which are not limited in the embodiment of the present application.
  • the network device in the embodiment of the present application may integrate all functions in one independent physical device, or may distribute the functions on multiple independent physical devices, which is not limited in the embodiment of the present application.
  • the terminal device in the embodiment of the present application may be connected to the network device in a wireless manner.
  • the system architecture shown above can be applied to various radio access technology (RAT) communication systems, such as 5G communication systems and communication systems that may appear in the future.
  • RAT radio access technology
  • the system architecture and business scenarios described in the embodiments of this application are intended to illustrate the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided in the embodiments of this application.
  • Those of ordinary skill in the art will know that with communication With the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.
  • the network device 101 can transmit the PDSCH to the terminal device 102 on the cell 1a or the cell 1b, and the PDSCH is generally scheduled through control information carried in the PDCCH, and the control information is, for example, DCI. Therefore, in order to correctly receive PDSCH on cell 1a or cell 1b, the terminal device 102 needs to monitor the PDCCH on cell 1a or cell 1b first, and obtain the DCI carried in the PDCCH by monitoring the PDCCH, and then obtain the relevant information required for receiving the PDSCH. Information, such as the location and size of PDSCH time-frequency resources.
  • the terminal device 102 can transmit the PUSCH to the network device 101 on the cell 1a or the cell 1b, and the PUSCH is generally scheduled through the control information carried in the PDCCH, and the control information is, for example, DCI. Therefore, in order to correctly transmit PUSCH on cell 1a or cell 1b, terminal device 102 needs to monitor PDCCH on cell 1a or cell 1b first, and obtain the DCI carried by the PDCCH by monitoring the PDCCH, and then obtain the relevant information needed for sending PUSCH , Such as PUSCH time-frequency resource location and size.
  • monitoring PDCCH can also be described as monitoring PDCCH.
  • the embodiments of this application provide some possible energy saving solutions, such as During the data interval, power saving can be achieved by adjusting the period of terminal equipment monitoring PDCCH on a certain cell or certain cells (such as lengthening the period of monitoring PDCCH) or turning off terminal equipment monitoring of PDCCH on certain cell or certain cells. Effect.
  • the period for terminal equipment to monitor PDCCH on cell 1a is 2 slots.
  • the period for terminal equipment to monitor PDCCH on cell 1a can be adjusted to 6 time slots, or turned off The terminal equipment monitors the PDCCH on the cell 1a.
  • the so-called lengthening of the PDCCH monitoring period can also be understood as a decrease in the number of times the terminal needs to monitor the PDCCH in the same time.
  • the unit for monitoring the PDCCH period can be a time slot, a sub-frame (sub-frame), a transmission time interval (TTI) or other possible time units, which are not specifically limited. In the embodiment of the application, it is mainly Take the time slot as the unit of the period of monitoring the PDCCH as an example for description.
  • scenario 1 when the period for the terminal device to monitor the PDCCH on the cell 1a is lengthened or the terminal device’s monitoring of the PDCCH on the cell 1a is turned off, if it is not pre-configured by other
  • a cell such as cell 2a
  • cross-cell scheduling cell 1a when terminal equipment has an urgent need for data transmission on cell 1a and needs to monitor the PDCCH of cell 1a, on the one hand, because the terminal equipment has a longer monitoring period in cell 1a or The PDCCH monitoring on cell 1a is turned off, so that the terminal equipment cannot quickly recover the function of monitoring the PDCCH of cell 1a through the self-scheduled PDCCH; on the other hand, because cross-cell scheduling is controlled by network equipment through radio resource control (radio resource control, If the RRC) signaling is configured, the terminal device has a relatively long time delay for receiving the RRC signaling, so that the terminal device cannot quickly restore the function of monitoring the PDCCH of the cell 1a through the newly configured PDC
  • radio resource control radio resource control
  • scenario 2 when the period for the terminal device to monitor PDCCH on cell 1a is lengthened or the terminal device’s monitoring of PDCCH on cell 1a is turned off, if it is pre-configured by other cells (For example, cell 2a)
  • the terminal device can monitor the PDCCH of cell 1a on cell 2a, so as to realize timely data transmission.
  • RRC reconfiguration is required to stop it, which may cause a large time delay.
  • an embodiment of the present application provides a communication method, which may include: a network device sends configuration information to a terminal device, the configuration information is used to instruct cross-cell monitoring of the PDCCH, and the terminal device receives the configuration information accordingly; and, the network device Send information 1 to the terminal device, and information 1 is used to indicate activation or deactivation of the cross-cell monitoring PDCCH, and accordingly, the terminal device receives information 1.
  • the cross-cell monitoring PDCCH can be flexibly activated or deactivated, so that the terminal device can flexibly switch the PDCCH monitoring on different cells in the CA (and/or DC) mode, and save the power consumption of the terminal device.
  • the network device when the method is applied to the above scenario 1, the network device can configure the cross-cell monitoring PDCCH for the terminal device, and it is not activated after the configuration (different from the cross-cell scheduling in the prior art, the cross-cell scheduling is configured Activate), but when activation is needed, the network device sends information 1 to activate. Since the embodiment of the present application can quickly activate the cross-cell monitoring PDCCH, the function of monitoring the PDCCH of the cell 1a can be quickly restored. On the other hand, when applied to the above scenario 2, the configuration information of cross-cell monitoring PDCCH can reuse the configuration information of cross-cell scheduling. When cross-cell monitoring needs to be stopped (or cross-cell monitoring is deactivated), the network equipment can Send message 1 to quickly deactivate the cross-cell monitoring PDCCH.
  • the method can be executed by two communication devices, such as a first communication device and a second communication device, where the first communication device can be a network device or can support the network device to implement the functions required by the method.
  • the communication device may also be other communication devices, such as a chip or a chip system.
  • the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, and of course it may also be another communication device, such as a chip or a chip system.
  • the method is executed by the network device and the terminal device as an example, that is, the first communication device is the network device and the second communication device is the terminal device as an example.
  • the network device described below may be in the system architecture shown in FIG. 1a
  • the terminal device described below (such as the terminal device used to implement the embodiment shown in FIG. 4 or FIG. 5) may be a terminal device in the system architecture shown in FIG. 1a.
  • the network device sends configuration information to the terminal device, and the configuration information is used to instruct the cross-cell monitoring of the PDCCH; accordingly, the terminal device receives the configuration information sent by the network device.
  • the network device may send configuration information to the terminal device through high-level signaling.
  • the high-level signaling may refer to signaling sent by a high-level protocol layer, and the high-level protocol layer is at least one protocol layer above the physical layer.
  • the high-level protocol layer may include at least one of the following protocol layers: MAC layer, radio link control (RLC) layer, packet data convergence protocol (PDCP) layer, RRC layer, and non-connected Access layer (non-access stratum, NAS).
  • the network device may send configuration information to the terminal device on any one of the one or more serving cells of the terminal device, which is not specifically limited.
  • the network device may have multiple cells, and the multiple cells may include a first cell and a second cell, and may also include a third cell, a fourth cell, and a fifth cell. Multiple cells can provide services for terminal devices through CA.
  • the configuration information may be used to indicate at least one mode of PDCCH monitoring across cells, and the at least one mode may include one or more modes.
  • the at least one mode may include one or more modes configured by the network device for a certain cell (such as the first cell) of the multiple cells.
  • the at least one mode includes the first A mode, a second mode and a third mode, wherein the first mode includes monitoring the PDCCH of the first cell on the second cell, the second mode includes monitoring the PDCCH of the first cell on the third cell, and the third mode includes The PDCCH of the first cell is monitored on the fourth cell.
  • the first mode includes monitoring the PDCCH of the first cell on the second cell
  • the second mode includes monitoring the PDCCH of the first cell on the third cell
  • the third mode includes The PDCCH of the first cell is monitored on the fourth cell.
  • the at least one mode may refer to multiple modes configured by the network device for two or more of the multiple cells.
  • one or more modes can be configured for each cell.
  • Multiple modes at least one mode includes a first mode, a second mode, a third mode, a fourth mode, and a fifth mode, where the first mode includes monitoring the PDCCH of the first cell on the second cell, and the second mode includes The third cell monitors the PDCCH of the first cell.
  • the third mode includes monitoring the PDCCH of the third cell on the fourth cell.
  • the fourth mode includes monitoring the PDCCH of the third cell on the fifth cell.
  • the fifth mode includes monitoring the PDCCH of the third cell on the fifth cell.
  • the PDCCH of the fourth cell is monitored on the cell.
  • the first mode and the second mode are two modes configured for the first cell
  • the third mode and the fourth mode are two modes configured for the third cell
  • the fifth mode is one configured for the fourth cell. mode.
  • the PDCCH of the first cell involved in the embodiments of the present application can be understood as the PDCCH used for the first cell, or the PDCCH serving the first cell, or the PDCCH serving the first cell.
  • the configuration information may have a variety of possible structures.
  • the following describes some possible structures of the configuration information.
  • the network device can configure a mode for a cell.
  • the following is an example of the structure of configuration information for a cell (the structure of the configuration information can be applied to each cell ):
  • CHOICE means to select one of the listed information options for configuration.
  • the network device has a first cell, a second cell, a third cell, a fourth cell, and a fifth cell, and the network device configures the first mode for the first cell.
  • the configuration information of the first cell may include the identity of the first cell.
  • the identity of the first cell may be information for the terminal device to identify the PDCCH of the first cell in the cross-cell monitoring PDCCH, which may be Identify the information of the first cell.
  • the identity of the first cell can also be information that can identify the (downlink) carrier corresponding to the first cell, such as carrier indication information (that is, the fetch of cif-InControlingCell). Value) or the value of CIF.
  • the network device configures the first cell
  • you can select other in the CrossCarrierPDCCHMonitoring structure of the first cell indicating that the PDCCH of the cell can be monitored on other cells
  • the configuration information of the first cell can include the identity of the second cell
  • the identity of the first cell may be carrier indication information used to distinguish the PDCCH serving the first cell on the second cell, corresponding to the foregoing structural example
  • the cif-InControlingCell for example, 1.
  • the terminal device learns that it can monitor the PDCCH of the first cell on other cells according to other, and learns that it can monitor the PDCCH of the first cell on the second cell according to the controllingCellId, according to cif-
  • the InControlingCell learns that the PDCCH is monitored on the second cell, if the value of the CIF carried in the PDCCH is the value of cif-InControlingCell, it is determined that the PDCCH is the PDCCH of the first cell.
  • the network device configures the second cell, in the CrossCarrierPDCCHMonitoring structure of the second cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the second cell can include instructions for indicating whether the DCI contains
  • the information of the carrier indicator field (CIF) corresponds to the cif-Presence in the foregoing structural example.
  • the cif-Presence can be configured as True, which means that the DCI information needs to include a carrier indicator field (CIF).
  • the second cell is configured as the cell that controls the PDCCH of the first cell.
  • the CIF contained in the DCI takes the value 0; when the PDCCH of the first cell is sent on the second cell
  • the terminal device after receiving the configuration information of the second cell, the terminal device knows that the PDCCH of the second cell can be monitored on the second cell according to own, and knows that the PDCCH sent by the second cell carries CIF according to the cif-Presence (that is, in the first cell).
  • the PDCCH sent on the second cell may be the PDCCH of the second cell or the PDCCH of other cells, which can be distinguished according to the CIF carried in the PDCCH).
  • the network device configures the third cell, in the CrossCarrierPDCCHMonitoring structure of the third cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the third cell can include instructions for indicating whether the DCI contains The CIF information corresponds to the cif-Presence in the above structural example.
  • the third cell is not configured as a cell that controls the PDCCH of other cells, cif-Presence can be configured as False, which means that the DCI sent on this cell does not need to include CIF.
  • the terminal device after receiving the configuration information of the third cell, the terminal device knows that the PDCCH of the third cell can be monitored on the third cell according to own, and knows that the PDCCH sent by the third cell does not carry CIF according to the cif-Presence, that is, the first
  • the PDCCHs sent on the three cells are all PDCCHs of the third cell.
  • the configuration of the fourth cell or the fifth cell by the network equipment refer to the configuration of the third cell, which will not be repeated.
  • the network device can configure multiple modes for a cell. Take the configuration of two modes for a cell as an example.
  • the following is the structure of configuration information for a cell Example (The structure of the configuration information can be applied to each cell):
  • CHOICE means to select one of the listed information options for configuration.
  • the network device has a first cell, a second cell, a third cell, a fourth cell, and a fifth cell, and the network device configures the first mode and the second mode for the first cell.
  • the configuration information of the first cell includes the identity of the second cell, corresponding to the controllingCellId of mode1 in the above structural example, and also includes carrier indication information for distinguishing PDCCH serving different cells on the second cell, corresponding to mode1 in the above structural example
  • the cif-InControlingCell for example, is 1.
  • the configuration information of the first cell also includes the identity of the third cell, which corresponds to the controllingCellId of mode2 in the above structural example, and also includes the PDCCH for distinguishing service from different cells on the third cell
  • the carrier indication information corresponds to the cif-InControlingCell of mode2 in the foregoing structural example, for example, 2.
  • the terminal device learns that it can monitor the PDCCH of the first cell on other cells according to other, and learns that it can monitor the PDCCH of the first cell on the second cell according to the controllingCellId in mode1, According to the cif-InControlingCell in mode1, when the PDCCH is monitored on the second cell, if the value of the CIF carried in the PDCCH is the value of the cif-InControlingCell in mode1, it is determined that the PDCCH is the PDCCH of the first cell; according to mode2 Knowing that the PDCCH of the first cell can be monitored on the third cell according to the controllingCellId in the third cell.
  • the value of the CIF carried in the PDCCH is the value of the cif-InControlingCell in mode2
  • the value of is determined to be the PDCCH of the first cell.
  • the network device configures the second cell, in the CrossCarrierPDCCHMonitoring structure of the second cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the second cell can include instructions for indicating whether the DCI contains
  • the CIF information corresponds to the cif-Presence in the above structural example.
  • the cif-Presence can be configured as True, indicating that it needs to include a carrier indicator field (CIF).
  • the second cell is configured as a cell that controls the PDCCH of the first cell.
  • the configuration of the third cell is similar to the configuration of the second cell and will not be repeated.
  • the network device configures the fourth cell, in the CrossCarrierPDCCHMonitoring structure of the fourth cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the fourth cell can include instructions for indicating whether the DCI contains The CIF information corresponds to the cif-Presence in the above structural example.
  • the fourth cell is not configured as a cell that controls the PDCCH of other cells, cif-Presence can be configured as False, which means that the DCI sent on this cell does not need to include CIF.
  • the configuration of the fifth cell is similar to the configuration of the fourth cell, and will not be repeated.
  • the network device can configure cross-cell monitoring PDCCH for multiple cells.
  • the following is an example of the structure of configuration information for multiple cells (in this case, the configuration The information can be configured for a certain terminal device):
  • cell1 can be understood as the configuration of cell 1
  • cell2 can be understood as the configuration of cell 2, and so on.
  • the configuration of each cell may include crossCarrierPDCCHMonitoring in the foregoing implementation manner 1 or implementation manner 2.
  • the configuration information in the embodiments of the present application may be referred to as cross-cell monitoring configuration information.
  • the cross-cell monitoring configuration information is used to indicate the first mode of cross-cell monitoring of the PDCCH (that is, the monitoring of the first cell on the second cell). PDCCH) as an example.
  • the network device configures cross-cell scheduling for the terminal device (for example, scheduling the first cell on the second cell), then the cross-cell monitoring configuration information can reuse the cross-cell scheduling configuration information At this time, the cross-cell scheduling configuration information sent by the network device is the cross-cell monitoring configuration information, and the details are not repeated here.
  • the terminal device can monitor the PDCCH of the first cell on the second cell, which is equivalent to having activated cross-cell monitoring; if cross-cell monitoring needs to be deactivated, the network equipment You can send message 1 to the terminal device to deactivate.
  • the network device does not configure cross-cell scheduling for the terminal device (for example, scheduling the first cell on the second cell)
  • the cross-cell monitoring can be configured in a similar manner to the cross-cell scheduling. In this case, the network device is not activated after the cross-cell monitoring is configured. If the cross-cell monitoring needs to be activated or deactivated, the network device can send a message 1 to the terminal device to activate or deactivate.
  • the network device sends information 1 to the terminal device, which is used to indicate the activation or deactivation of the cross-cell monitoring PDCCH; accordingly, the terminal device receives the information 1 sent by the network device.
  • the information 1 may include first information or fifth information, the first information is used to indicate the activation of the cross-cell monitoring PDCCH, and the fifth information is used to indicate the deactivation of the cross-cell monitoring PDCCH.
  • the first information is used to indicate the activation of the cross-cell monitoring PDCCH, and can also be understood as the first information used to indicate the cross-cell monitoring PDCCH.
  • the network device can send information 1 to the terminal device in a variety of ways, such as dynamic signaling or semi-static signaling.
  • the dynamic signaling can be understood as information sent through PDCCH, such as downlink Control information (downlink control information, DCI), because DCI is directly sent through physical layer information, the terminal device has a shorter time delay for receiving information 1 and a faster response.
  • Semi-static signaling can be understood as information sent through the medium access control (MAC) layer, such as the medium access control element (MAC CE), and the terminal device receives this information (such as MAC).
  • MAC medium access control
  • MAC CE medium access control element
  • the time delay of CE is obviously shorter than that of RRC signaling, and this kind of information has its corresponding HARQ feedback information, which is highly reliable.
  • Implementation manner 1 The network device sends DCI to the terminal device, and the DCI includes information 1.
  • DCI can be scrambled by using cell radio network temporary identifier (C-RNTI), or it can be scrambled by using newly defined RNTI, which can be cross-carrier PDCCH-RNTI (cross-carrier PDCCH-RNTI).
  • C-RNTI cell radio network temporary identifier
  • CRPDCCH-RNTI carrier PDCCH-radio network temporary identifier
  • DCI uses C-RNTI or newly defined RNTI for scrambling, which can be understood as that the CRC in DCI uses C-RNTI or newly defined RNTI for scrambling.
  • C-RNTI uses C-RNTI scrambling
  • the DCI encoding process includes: Step 1. Information bits form information blocks according to a certain format (DCI format), or called information sequences, such as a 0 , a 1 , a 2 , a 3 ,...
  • Step 4 Perform channel coding and rate matching, complete the coding process, and obtain the coded DCI.
  • the DCI in the embodiment of the present application may be DCI in multiple possible formats, such as DCI format 0_0, DCI format 0_1, DCI format 1_0, or DCI format 1_1.
  • DCI can include hybrid automatic repeat request (HARQ) process number (HARQ process number) indication field, redundancy version (redundancy version, RV) indication field, modulation and coding scheme (modulation and coding scheme, MCS) indicator field, frequency domain resource allocation (frequency domain resource assignment) indicator field, time domain resource allocation (time domain resource assignment) indicator field, new data indicator (NDI) indicator field, transmit power control (transmit power)
  • HARQ process number HARQ process number
  • RV redundancy version
  • MCS modulation and coding scheme
  • TPC transmission power control
  • TPC time hopping
  • frequency hopping flag frequency hopping flag
  • C-RNTI scrambled DCI format 1_0 includes domain examples
  • the HARQ process number indicator field, the RV indicator field, the MCS indicator field, the frequency domain resource allocation indicator field, the time domain resource allocation indicator field, the newly transmitted data indicator field, the transmit power control indicator field, and the frequency hopping indicator The fields are used to indicate corresponding information when scheduling uplink data or downlink data transmission; for example, when DCI format 1_0 is used to schedule downlink data, the frequency domain resource allocation indication field is used to indicate frequency domain resources occupied by downlink data.
  • the information 1 is included in the DCI, it is no longer used for scheduling uplink data or downlink data. Therefore, the information 1 can be carried by means of the above domain.
  • one or more of the following fields can be used to carry information 1: HARQ process number indicator field, RV indicator field, MCS indicator field, frequency domain resource allocation indicator field, time domain resource allocation indicator field, new transmission data indicator Field, transmit power control indicator field, frequency hopping indicator field, newly extended first bit field, reserved field. Understandably, other possible domains may also be used to carry the information 1, which is not limited in the embodiment of the present application.
  • Table 2 Examples of domains and domain values that carry the first information
  • Table 3 Examples of the fields and values of the fifth information
  • the value of the HARQ process number indication field is all 1, and the value of the redundancy version indication field is 11, it means that the information carried in the DCI is the first information; when HARQ When the value of the process number indicator field is all 1, and the value of the redundancy version indicator field is 11, the value of the MCS indicator field is all 0, and the value of the frequency domain resource allocation indicator field is all 0, it indicates that the data carried in the DCI
  • the information is the fifth information.
  • Table 2 and Table 3 may also include a newly transmitted data indication field and a transmission power control indication field.
  • a newly transmitted data indication field when the value of the HARQ process number indicator field is all 0, the value of the redundancy version indicator field is 00, the value of the newly transmitted data indicator field is all 0, and the transmit power The value of the control indication field is all 0, indicating that the information carried in the DCI is the first information; when the value of the HARQ process number indication field is all 0, and the value of the redundancy version indication field is 00, the newly transmitted data indicates When the value of the field is all 0, the value of the transmit power control indicator field is all 0, the value of the MCS indicator field is all 1, and the value of the frequency domain resource allocation indicator field is all 1, it means that the information carried in the DCI is the first Five information.
  • the HARQ process number indicator field, RV indicator field, MCS indicator field, frequency domain resource allocation indicator field, time domain resource allocation indicator field, newly transmitted data indicator field, transmit power control indicator field, frequency hopping can also be used.
  • Any one of the indication field, the newly extended first bit field, and the reserved field carries the first information or the fifth information, for example, it is carried by the time domain resource allocation indication field.
  • DCI format 0_0 when the value of the current domain resource allocation indication field is all 0, it means that the information carried in the DCI is the first information; when the value of the current domain resource allocation indication field is all 1 , It is explained that the information carried in the DCI is the fifth information.
  • the terminal device can generate HARQ for the DCI carrying information 1. Feedback information is used to feed back whether the DCI is correctly received.
  • Implementation mode 2 The network device sends the MAC CE to the terminal device, and the MAC CE includes information 1.
  • the MAC CE here may be a newly defined MAC CE in this embodiment of the application, and information 1 is sent through the newly defined MAC CE, which is convenient for information extension and has less impact on the standard.
  • the MAC PDU is composed of one or more MAC sub-PDUs (subPDU).
  • Each MAC subPDU contains one of the following: MAC subheader only; MAC subheader and MAC SDU; MAC subheader and MAC CE; MAC subheader and padding.
  • Each MAC subheader corresponds to MAC SDU, MAC CE or padding.
  • the MAC sub-header consists of four header fields R/F/LCID/L. This situation is mainly aimed at the addition of fixed-size MAC CE, padding and inclusion of uplink common control channel (UL CCCH).
  • MAC sub-header other than the MAC SDU; in another example, the MAC sub-header consists of two header fields R/LCID.
  • LCID is the logical channel ID, which represents the logical channel instance of the corresponding MAC SDU or the corresponding MAC CE or the type of padding.
  • Each MAC subheader has an LCID field, the size of the LCID field is 6 bits; L is the length field, indicating the corresponding MAC The length of the SDU or variable size MAC CE (in bytes), except for the MAC subheader corresponding to the fixed size MAC CE, padding, and MAC SDU containing UL CCCH, each MAC subheader has an L field , The size of the L field is represented by the F field; F is the format field, which represents the size of the length field. Except for the MAC CE corresponding to a fixed size, padding and the subheader of the MAC SDU containing UL CCCH, each MAC subheader has an F field. The size of the F field is 1 bit. When the value is 0, it means that the length field is 8 bits. When the value is 1, it means that the length field is 16 bits. R is a reserved bit and is set to 0.
  • the MAC subheader corresponding to the MAC CE newly defined in the embodiment of this application includes an LCID, and the LCID is used to indicate that the MAC CE includes information 1.
  • the value of LCID can be any value from 33 to 46, which is not specifically limited.
  • the MAC CE can be sent as a separate MAC PDU, or can be sent together with other MAC SDUs, which is not specifically limited.
  • the MAC CE may be a fixed length MAC CE.
  • R represents reserved bits
  • Ci represents the activation or deactivation of the cross-cell monitoring PDCCH of the i-th cell
  • the value of Ci 1 indicates that the cross-cell monitoring PDCCH of the i-th cell is activated
  • the value of Ci is 0, which indicates that the cross-cell monitoring PDCCH of the i-th cell is deactivated.
  • the network device sends information 2 to the terminal device, and the information 2 is used to indicate the activation or deactivation of the cross-cell monitoring PDCCH mode; correspondingly, the terminal device receives the information 2 sent by the network device.
  • information 2 can be used in combination with information 1.
  • Information 1 indicates the activation or deactivation of the cross-cell monitoring PDCCH, and information 2 further indicates the specific mode of activating or deactivating the cross-cell monitoring PDCCH.
  • information 1 may indicate the activation or deactivation of the cross-cell monitoring PDCCH of a certain cell, and information 2 further indicates a mode configured by the network device for the cell; for example, the network device has configured the first cell for the first cell.
  • Mode, second mode and third mode information 1 may indicate the first cell, and information 2 may further indicate one of the first mode, second mode, and third mode.
  • message 1 may only indicate the activation or deactivation of the cross-cell monitoring PDCCH without indicating a specific cell
  • message 2 may indicate a mode of network device configuration; for example, the network device is configured for multiple cells
  • information 1 can only indicate activation or deactivation of cross-cell monitoring PDCCH
  • information 2 can further indicate the first mode, second mode, One of the third, fourth, and fifth modes.
  • the information 2 may include second information or sixth information, the second information is used to indicate the mode of activating the cross-cell monitoring PDCCH, and the sixth information is used to indicate the mode of deactivating the cross-cell monitoring PDCCH.
  • the information 1 sent by the network device to the terminal device is the first information
  • the information 2 sent to the terminal device can be the second information
  • the information 1 sent by the network device to the terminal device is the fifth information, it will be sent to the terminal device.
  • the sent information 2 may be the sixth information.
  • sending information 2 from the network device to the terminal device is an optional step. For example, if the network device is only configured with a cross-cell monitoring PDCCH mode, only sending information 1 can activate or deactivate this mode. No more messages sent 2.
  • the network device may send information 1 and information 2 through the same message, or may also send information 1 and information 2 through different messages, which is not specifically limited. Take the network device sending information 1 and information 2 through the same message as an example.
  • the network device sends DCI to the terminal device.
  • the DCI includes information 1 and information 2.
  • information 2 can be carried in the newly extended second bit. Domain and/or reserved domain; for another example, a network device sends a MAC CE to a terminal device, and the MAC CE includes information 1 and information 2, as shown in Figure 3, the CRPDlndi corresponding to Ci represents the activation or deactivation of the i-th cell The mode of PDCCH monitoring across cells.
  • the number of bits occupied by information 2 can be determined according to the number of cross-cell monitoring PDCCH modes configured by the network device.
  • the cross-cell monitoring PDCCH mode configured by the network device for the first cell includes the first mode
  • information 2 can occupy 2 bits.
  • the value of 2 bits is 00, it indicates the first mode, and when the value of 2 bits is 01, it indicates the second mode.
  • the value of 2 bits is 10, it indicates the third mode.
  • the network device sends information 3 to the terminal device, and the information 3 is used to control the period of monitoring the PDCCH on the first cell; accordingly, the terminal device receives the information 3 sent by the network device.
  • information 3 can control the period of PDCCH monitoring on the first cell by indicating the period of PDCCH monitoring on the first cell or indicating that the PDCCH is not monitored on the first cell (at this time, information 3 can understand Monitoring control information for PDCCH).
  • the network device can configure multiple BWPs for the terminal device (multiple BWPs belong to the same cell), and each BWP corresponds to a period for monitoring the PDCCH.
  • the information 3 can also control the period of monitoring the PDCCH on the first cell by indicating BWP switching (in this case, the information 3 can be understood as the BWP indication information), for example, the information 3 can indicate Includes index information of the target BWP, such as BWP ID.
  • the information 3 may include the third information or the fourth information.
  • the network device configures the terminal device with two periods for monitoring the PDCCH of the first cell on the first cell.
  • the first period is 2 time slots.
  • the second cycle is 6 time slots.
  • the third information may be used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third information may be used to indicate the period of monitoring the PDCCH of the first cell on the first cell (for example, 6 time slots) ;
  • the fourth information may be used to indicate the period of monitoring the PDCCH of the first cell on the first cell (for example, 2 time slots).
  • the third information and the fourth information can be carried by the same information field.
  • the information field can include two bits.
  • the network device can pre-configure multiple monitoring periods, and then send information 3 to the terminal device to selectively indicate the corresponding monitoring period.
  • the network equipment determines that it needs to save the power consumption of the terminal equipment, it can The terminal device sends the third information (the value of the information field can be 10 or 00 at this time), so that the terminal device enters the energy-saving state; when the terminal device does not monitor the PDCCH of the first cell on the first cell, or the terminal device is on
  • the network device can send the fourth information to the terminal device (the value of the information field is 01 at this time) , So that the terminal equipment enters the normal state.
  • the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell. It can also be described as the third information is used to indicate that the monitoring of the PDCCH of the first cell on the first cell is turned off , Or the third information is used to indicate that the PDCCH of the first cell is ignored on the first cell, or other possible descriptions are not specifically limited.
  • the network device can send information 3 through DCI.
  • the DCI carrying information 3 and the DCI carrying information 1 (and information 2) can be the same DCI, or they can be different DCIs. limited.
  • the DCI carrying information 3 and the DCI carrying information 1 may be the same DCI, the DCI may include the first information and the third information, or include the fifth information and the fourth information.
  • the size of the DCI format used to carry information 1 should be aligned with the size of the original DCI format, for example, when using DCI format 1_0 to send For information 1, the size of the DCI format 1_0 must be the same as the size of the DCI format 1_0 used for scheduling downlink data.
  • FIG. 4 is a schematic diagram of the process corresponding to the communication method provided in Embodiment 1 of the application. As shown in FIG. 4, the method includes:
  • Step 401 The network device configures information 1 to the terminal device.
  • the configuration information 1 is used to indicate the first mode, the second mode, and the third mode of monitoring PDCCH across cells.
  • the first mode includes monitoring the PDCCH of the first cell on the second cell.
  • the second mode includes monitoring the PDCCH of the first cell on the third cell
  • the third mode includes monitoring the PDCCH of the first cell on the fourth cell.
  • the terminal device receives the configuration information 1 sent by the network device.
  • step 403 may be performed.
  • Step 403 The network device sends control information-1a to the terminal device.
  • the control information-1a includes first information, second information, and third information.
  • the first information is used to indicate the activation of the cross-cell monitoring PDCCH
  • the second information is used for To indicate the first mode
  • the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell.
  • the control information-1a may be DCI sent by the network device on the first cell.
  • the terminal device receives the control information-1a sent by the network device, and monitors the PDCCH of the first cell on the second cell according to the control information-1a, and no longer monitors the first cell on the first cell PDCCH.
  • Step 405 The network device sends control information-1b to the terminal device.
  • the control information-1b includes fourth information, fifth information, and sixth information, where the fourth information is used to indicate the monitoring of the first cell on the first cell.
  • the period of the PDCCH is 2 time slots
  • the fifth information is used to indicate the deactivation of the cross-cell monitoring PDCCH
  • the sixth information is used to indicate the first mode.
  • the control information-1b may be DCI sent by the network device on the second cell.
  • the terminal device receives the control information-1b sent by the network device, and resumes monitoring the PDCCH of the first cell on the first cell according to the control information-1b, and no longer monitors the first cell on the second cell. PDCCH of the cell.
  • the sixth information may not be included in the control information-1b, and the terminal device can learn to deactivate the first mode according to the fifth information.
  • Fig. 5 is a schematic diagram of a process corresponding to the communication method provided in the second embodiment of the application. As shown in Fig. 5, the method includes:
  • Step 501 The network device configures information 1 to the terminal device.
  • the configuration information 1 is used to indicate the first mode, the second mode, and the third mode of PDCCH monitoring across cells.
  • the first mode includes monitoring the PDCCH of the first cell on the second cell.
  • the second mode includes monitoring the PDCCH of the first cell on the third cell
  • the third mode includes monitoring the PDCCH of the first cell on the fourth cell.
  • the terminal device receives the configuration information 1 sent by the network device.
  • step 503 may be performed.
  • Step 503 The network device sends control information-2a to the terminal device.
  • the control information-2a includes first information and second information, where the first information is used to indicate the activation of the cross-cell monitoring PDCCH, and the second information is used to indicate the first mode.
  • the control information-2a may be DCI sent on the first cell or may also be MAC CE.
  • the terminal device receives the control information-2a, and monitors the PDCCH of the first cell on the first cell and the second cell.
  • Step 505 The network device sends control information-2b to the terminal device.
  • the control information-2b includes third information, and the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell.
  • the control information-2b may be DCI sent by the network device on the first cell or on the second cell.
  • the terminal device receives the control information-2b sent by the network device, and no longer monitors the PDCCH of the first cell on the first cell according to the control information-2b, but only monitors the first cell on the second cell. PDCCH of the cell.
  • Step 507 The network device sends control information-2c to the terminal device.
  • the control information-2c includes fourth information.
  • the fourth information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell (for example, 6 time slots).
  • the control information-2c may be the DCI sent by the network device on the second cell.
  • the terminal device receives the control information-2c sent by the network device, and resumes monitoring the PDCCH of the first cell on the first cell, and at this time also monitors the PDCCH of the first cell on the second cell.
  • Step 509 The network device sends control information-2d to the terminal device.
  • the control information-2d includes fifth information, where the fifth information is used to indicate deactivation of the cross-cell monitoring PDCCH.
  • the control information-2d may be the DCI sent by the network device on the first cell or the second cell.
  • the terminal device receives the control information-2d sent by the network device, and deactivates the cross-cell monitoring PDCCH according to the control information-2d, that is, no longer monitors the PDCCH of the first cell on the second cell. Monitor the PDCCH of the first cell only on the first cell.
  • the first information, the second information, and the third information are sent through one message, and the fourth information, the fifth information, and the sixth information are sent through one message; the above embodiment two Mainly describes the situation of sending the first, second, and third information through different messages, and sending the fourth, fifth, and sixth information through different messages.
  • the network device or the terminal device may include corresponding hardware structures and/or software modules for performing various functions.
  • the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • FIG. 6 shows a possible exemplary block diagram of a device involved in an embodiment of the present application, and the device 600 may exist in the form of software.
  • the apparatus 600 may include: a processing unit 602 and a communication unit 603.
  • the processing unit 602 is used to control and manage the actions of the device 600.
  • the communication unit 603 is used to support communication between the device 600 and other network entities.
  • the communication unit 603 is also referred to as a transceiving unit, and may include a receiving unit and/or a sending unit, which are used to perform receiving and sending operations, respectively.
  • the device 600 may further include a storage unit 601 for storing program codes and/or data of the device 600.
  • the processing unit 602 may be a processor or a controller, which may implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present application.
  • the communication unit 603 may be a communication interface, a transceiver, or a transceiver circuit, etc., where the communication interface is a general term. In a specific implementation, the communication interface may include multiple interfaces.
  • the storage unit 601 may be a memory.
  • the apparatus 600 may be the terminal device in any of the above embodiments, or may also be a chip provided in the terminal device.
  • the processing unit 602 may support the apparatus 600 to perform the actions of the terminal device in the foregoing method examples.
  • the processing unit 602 mainly executes the internal actions of the terminal device in the method example, and the communication unit 603 can support communication between the apparatus 600 and the network device.
  • the communication unit 602 is configured to execute step 402, step 404, and step 406 in FIG. 4, and step 502, step 504, step 506, step 508, and step 510 in FIG.
  • the communication unit 603 is configured to receive configuration information sent by a network device, where the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, and the at least one mode includes the first mode.
  • the first mode includes monitoring the control channel of the first cell on the second cell; and receiving first information sent by the network device, the first information being used to indicate cross-cell monitoring and control channel;
  • the processing unit 602 is configured to monitor the control channel of the first cell on the second cell.
  • the at least one mode includes two or more modes; the communication unit 603 is further configured to: receive second information sent by the network device, and the second information is used to indicate The mode of the cell monitoring control channel is the first mode.
  • the communication unit 603 is specifically configured to: receive downlink control information DCI sent by the network device, where the DCI includes the first information and/or the second information.
  • one or more of the following fields in the DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and coding mode Indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
  • the DCI further includes third information; wherein the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third The information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
  • the communication unit 603 is specifically configured to receive a MAC CE sent by the network device, where the MAC CE includes the first information and/or the second information.
  • the MAC subheader corresponding to the MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information.
  • the processing unit 602 is specifically configured to monitor the control channel of the BWP of the first cell on the activated bandwidth part BWP of the second cell.
  • the apparatus 600 may also be the network device in any of the above embodiments, or may also be a chip set in the network device.
  • the processing unit 602 may support the apparatus 600 to execute the actions of the network device in the above method examples.
  • the processing unit 602 mainly executes the internal actions of the network device in the method example, and the communication unit 603 can support communication between the apparatus 600 and the terminal device.
  • the communication unit 603 is configured to perform step 401, step 403, and step 405 in FIG. 4, and step 501, step 503, step 505, step 507, and step 509 in FIG.
  • the communication unit 603 is configured to send configuration information to the terminal device, the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, and the at least one mode includes the first mode.
  • the first mode includes monitoring the control channel of the first cell on the second cell; and sending first information to the terminal device, the first information being used to indicate the cross-cell monitoring control channel .
  • the at least one mode includes two or more than two modes; the communication unit 602 is further configured to: send second information to the terminal device, where the second information is used to indicate cross-cell
  • the mode of monitoring the control channel is the first mode.
  • the communication unit 603 is specifically configured to send downlink control information DCI to the terminal device, where the DCI includes the first information and/or the second information.
  • one or more of the following fields in the DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and coding mode Indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
  • the DCI further includes third information; wherein the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third The information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
  • the communication unit 603 is specifically configured to: MAC CE to the terminal device media access control unit, where the MAC CE includes the first information and/or the second information.
  • the MAC subheader corresponding to the MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information.
  • modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • the functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • a computer readable storage medium includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium may be various mediums capable of storing program codes, such as a memory.
  • FIG. 7 shows a schematic structural diagram of an apparatus.
  • the apparatus 700 includes a processor 710, a memory 720, and a transceiver 730.
  • the apparatus 700 can implement the functions of the apparatus 600 illustrated in FIG. 6.
  • the functions of the communication unit 603 illustrated in FIG. 6 may be implemented by a transceiver, and the functions of the processing unit 602 may be implemented by a processor.
  • the function of the storage unit 601 can be implemented by a memory.
  • the apparatus 700 may be the terminal device in the above method embodiment, and the apparatus 700 may be used to implement the method corresponding to the terminal device described in the above method embodiment. For details, please refer to the description in the above method embodiment. .
  • FIG. 8 is a schematic structural diagram of a terminal device 800 provided by an embodiment of this application.
  • the terminal device 800 includes a processor 801, a memory 802, a control circuit 803, an antenna 804, and an input and output device 805.
  • the terminal device 800 can be applied to the system architecture shown in FIG. 1a to perform the functions of the terminal device in the foregoing method embodiment.
  • the processor 801 is mainly used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process data of the software programs, for example, to control the terminal device to perform the actions described in the foregoing method embodiments.
  • the memory 802 is mainly used to store software programs and data.
  • the control circuit 803 is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
  • the control circuit 803 and the antenna 804 together can also be called a transceiver, which is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves.
  • the input and output device 805, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.
  • the processor 801 can read the software program in the memory 802, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 801 performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna 804.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 801.
  • the processor 801 converts the baseband signal into data and performs processing on the data. deal with.
  • FIG. 8 only shows a memory 802 and a processor 801.
  • the memory 802 may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.
  • the processor 801 may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processing unit is mainly used to control the entire terminal device. Execute the software program and process the data of the software program.
  • the processor 801 in FIG. 8 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, and are interconnected by technologies such as a bus.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and the communication data may be built in the processor 801, or may be stored in the memory 802 in the form of a software program, and the processor 801 executes the software program to realize the baseband processing function.
  • the terminal device 800 shown in FIG. 8 can implement various processes involving the terminal device in the method embodiments illustrated in FIG. 4 and FIG. 5.
  • the operations and/or functions of each module in the terminal device 800 are respectively for implementing the corresponding processes in the foregoing method embodiments.
  • FIG. 9 is a schematic structural diagram of a network device 900 provided by an embodiment of this application.
  • the network device 900 includes one or more radio frequency units, such as a remote radio unit (RRU) 910 and one or more baseband units (BBU) (also called digital units). ,Digital unit,DU)920.
  • the RRU 910 may be called a communication unit, which corresponds to the communication unit 603 in FIG. 6.
  • the communication unit may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 911 ⁇ RF unit 912.
  • the RRU 910 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the 910 part of the BBU is mainly used for baseband processing and control of the base station.
  • the RRU 910 and the BBU 920 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 920 is the control center of the base station, and may also be called a processing module, which may correspond to the processing unit 602 in FIG. 6, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
  • the BBU 920 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an LTE network) of a single access standard, or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 920 further includes a memory 921 and a processor 922.
  • the memory 921 is used to store necessary instructions and data.
  • the processor 922 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 921 and the processor 922 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the network device 900 shown in FIG. 9 can implement various processes involving the network device in the method embodiments shown in FIG. 4 and FIG. 5.
  • the operations and/or functions of each module in the network device 800 are respectively for implementing the corresponding processes in the foregoing method embodiments.
  • each step in the method provided in this embodiment can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the aforementioned processor may be a general-purpose central processing unit (central processing unit, CPU), general-purpose processor, digital signal processing (digital signal processing, DSP), application specific integrated circuits (ASIC), field programmable gate array Field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof; it can also be a combination that implements computing functions, such as a combination of one or more microprocessors, DSP and micro-processing The combination of the device and so on.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory or storage unit in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct rambus RAM direct rambus RAM
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer programs or instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer program or instruction may be stored in a computer-readable storage medium, or transmitted through the computer-readable storage medium.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server integrating one or more available media.
  • the usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state disk (SSD).
  • the various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions.
  • the general-purpose processor may be a microprocessor, and optionally, the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine.
  • the processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration achieve.
  • the steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two.
  • the software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other storage medium in the field.
  • the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium.
  • the storage medium may also be integrated into the processor.
  • the processor and the storage medium can be arranged in an ASIC, and the ASIC can be arranged in a terminal device.
  • the processor and the storage medium may also be arranged in different components in the terminal device.
  • 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

A communication method and device, the method comprising: receiving configuration information from a network device, the configuration information being used to indicate at least one mode of a cross-cell monitoring control channel, the at least one mode comprising a first mode, and the first mode comprising a control channel that is on a second cell and that monitors a first cell; and receiving first information from the network device, the first information being used to indicate the cross-cell monitoring control channel and a control channel that is on the second cell and that monitors the first cell. By using the method, a cross-cell monitoring PDCCH may be flexibly activated, thereby enabling a terminal device to be able to flexibly perform conversion of PDCCH monitoring on different cells in a CA (and/or DC) mode, thereby reducing the power consumption of the terminal device.

Description

一种通信方法及装置Communication method and device 技术领域Technical field
本申请涉及无线通信技术领域,特别涉及一种通信方法及装置。This application relates to the field of wireless communication technology, and in particular to a communication method and device.
背景技术Background technique
在通信***中,网络设备可以通过物理下行控制信道(physical downlink control channel,PDCCH)向终端设备发送下行控制信息(downlink control information,DCI)。网络设备可以通过高层信令给终端设备配置发送DCI对应的搜索空间集合(search space set),但不通知终端设备会在搜索空间集合中的哪个或哪些候选(candidate)PDCCH上发送DCI;相应地,终端设备需要在搜索空间中对PDCCH进行盲检测。In a communication system, a network device can send downlink control information (downlink control information, DCI) to a terminal device through a physical downlink control channel (PDCCH). The network device can configure the terminal device to send the search space set (search space set) corresponding to the DCI through high-level signaling, but does not notify the terminal device on which candidate PDCCH or candidates in the search space set to send the DCI; accordingly; , The terminal device needs to blindly detect the PDCCH in the search space.
然而,由于对PDCCH进行盲检测的复杂度较大,从而使得终端设备会消耗大量的功耗。However, due to the high complexity of blind detection of the PDCCH, the terminal device consumes a large amount of power consumption.
发明内容Summary of the invention
本申请实施方式的目的在于提供一种通信方法及装置,用于快速恢复监控第一小区的PDCCH的功能。The purpose of the embodiments of this application is to provide a communication method and device for quickly recovering the function of monitoring the PDCCH of the first cell.
第一方面,本申请实施例提供一种通信方法,该通信方法可以由终端设备执行,或者也可以由设置在终端设备中的芯片执行。下面以该通信方法由终端设备执行为例进行描述,比如该方法可以包括:In the first aspect, the embodiments of the present application provide a communication method, which may be executed by a terminal device, or may also be executed by a chip set in the terminal device. The following describes the communication method executed by the terminal device as an example. For example, the method may include:
终端设备接收网络设备发送的配置信息,所述配置信息用于指示跨小区监控控制信道的至少一种模式,所述至少一种模式中包括第一模式,所述第一模式包括在第二小区上监控第一小区的控制信道;终端设备接收所述网络设备发送的第一信息,所述第一信息用于指示跨小区监控控制信道;终端设备在所述第二小区上监控所述第一小区的控制信道。The terminal device receives configuration information sent by the network device, where the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, the at least one mode includes the first mode, and the first mode is included in the second cell The control channel of the first cell is monitored on the terminal device; the terminal device receives the first information sent by the network device, and the first information is used to indicate the cross-cell monitoring control channel; the terminal device monitors the first cell on the second cell The control channel of the cell.
采用上述方法,可以灵活地激活跨小区监控PDCCH,从而使得终端设备在CA(和/或DC)方式下可以灵活地在不同小区上进行PDCCH监控的转换,节省终端设备的功耗。Using the above method, the cross-cell monitoring PDCCH can be activated flexibly, so that the terminal device can flexibly switch the PDCCH monitoring on different cells in the CA (and/or DC) mode, and save the power consumption of the terminal device.
其中,终端设备接收网络设备发送的信息(比如配置信息或第一信息或其它可能的信息),也可以描述为终端设备从网络设备接收信息。Wherein, the terminal device receiving information (such as configuration information or first information or other possible information) sent by the network device can also be described as the terminal device receiving information from the network device.
在一种可能的设计中,所述至少一种模式包括两种或两种以上模式;所述方法还包括:所述终端设备接收所述网络设备发送的第二信息,所述第二信息用于指示跨小区监控控制信道的模式为所述第一模式。In a possible design, the at least one mode includes two or more than two modes; the method further includes: the terminal device receives the second information sent by the network device, and the second information uses The mode for indicating the cross-cell monitoring control channel is the first mode.
在一种可能的设计中,所述终端设备接收所述网络设备发送的所述第一信息和/或第二信息,包括:所述终端设备接收所述网络设备发送的第一DCI,所述第一DCI包括所述第一信息和/或所述第二信息。In a possible design, the terminal device receiving the first information and/or the second information sent by the network device includes: the terminal device receives the first DCI sent by the network device, and the The first DCI includes the first information and/or the second information.
采用上述方法,由于DCI直接通过物理层信息发送,从而使得终端设备接收第一信息和/或第二信息的时延较短、响应较快。With the above method, since the DCI is directly sent through the physical layer information, the terminal device receives the first information and/or the second information with a shorter time delay and a faster response.
在一种可能的设计中,所述第一DCI中的以下一个或多个域用于承载所述第一信息:混合自动重传请求HARQ进程编号指示域、冗余版本RV指示域、调制和编码方式指示域、频域资源指示域、时域资源分配指示域、新传数据指示域、发送功率指示域、跳频指示域、 保留域。In a possible design, one or more of the following fields in the first DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and Coding mode indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
在一种可能的设计中,所述第一DCI还包括第三信息;其中,所述第三信息用于指示在所述第一小区上不监控所述第一小区的PDCCH,或者,所述第三信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。In a possible design, the first DCI further includes third information; wherein, the third information is used to indicate that the PDCCH of the first cell is not monitored on the first cell, or the The third information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
在一种可能的设计中,所述终端设备接收所述网络设备发送的第一DCI,包括:所述终端设备在所述第一小区上接收所述网络设备发送的第一DCI。In a possible design, the receiving, by the terminal device, the first DCI sent by the network device includes: the terminal device receiving the first DCI sent by the network device on the first cell.
在一种可能的设计中,所述终端设备接收网络设备发送的所述第一信息和/或第二信息,包括:所述终端设备接收所述网络设备发送的第一媒体接入控制单元MAC CE,所述第一MAC CE包括所述第一信息和/或第二信息。In a possible design, the terminal device receiving the first information and/or the second information sent by the network device includes: the terminal device receiving the first media access control unit MAC sent by the network device CE, the first MAC CE includes the first information and/or the second information.
采用上述方法,由于终端设备接收MAC CE的时延明显短于RRC信令的时延,而且MAC CE有其对应的HARQ反馈信息,从而使得终端设备接收第一信息和/或第二信息的可靠性较高。With the above method, since the delay of receiving the MAC CE by the terminal device is significantly shorter than the delay of RRC signaling, and the MAC CE has its corresponding HARQ feedback information, the terminal device can receive the first information and/or the second information reliably. High sex.
在一种可能的设计中,所述第一MAC CE对应的MAC子头中包括逻辑信道标识符LCID,所述LCID用于指示所述MAC CE包括所述第一信息和/或所述第二信息。In a possible design, the MAC subheader corresponding to the first MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information. information.
在一种可能的设计中,所述方法还包括:所述终端设备接收网络设备发送的第四信息,所述第四信息用于指示去跨小区监控控制信道。In a possible design, the method further includes: the terminal device receives fourth information sent by the network device, where the fourth information is used to instruct to monitor the control channel across cells.
在一种可能的设计中,所述终端设备接收网络设备发送的第四信息,包括:所述终端设备接收网络设备发送的第二DCI,所述第二DCI包括所述第四信息。In a possible design, the terminal device receiving the fourth information sent by the network device includes: the terminal device receiving the second DCI sent by the network device, and the second DCI includes the fourth information.
在一种可能的设计中,所述第二DCI还包括第五信息;所述第五信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。In a possible design, the second DCI further includes fifth information; the fifth information is used to indicate a period for monitoring the PDCCH of the first cell on the first cell.
在一种可能的设计中,所述终端设备接收网络设备发送的第二DCI,包括:所述终端设备在所述第二小区上接收所述网络设备发送的所述第二DCI。In a possible design, that the terminal device receives the second DCI sent by the network device includes: the terminal device receives the second DCI sent by the network device on the second cell.
在一种可能的设计中,所述终端设备接收网络设备发送的第四信息,包括:所述终端设备接收网络设备发送的第二MAC CE,所述第二MAC CE包括所述第四信息。In a possible design, the terminal device receiving the fourth information sent by the network device includes: the terminal device receiving the second MAC CE sent by the network device, and the second MAC CE includes the fourth information.
在一种可能的设计中,所述第二MAC CE对应的MAC子头中包括第二LCID,所述第二LCID用于指示所述第二MAC CE包括所述第四信息。In a possible design, the MAC subheader corresponding to the second MAC CE includes a second LCID, and the second LCID is used to indicate that the second MAC CE includes the fourth information.
第二方面,本申请实施例提供一种通信方法,该通信方法可以由网络设备执行,或者也可以由设置在网络设备中的芯片执行。下面以该通信方法由网络设备执行为例进行描述,比如该方法可以包括:In the second aspect, the embodiments of the present application provide a communication method, which may be executed by a network device, or may also be executed by a chip provided in the network device. The following describes the communication method executed by a network device as an example. For example, the method may include:
网络设备向终端设备发送配置信息,所述配置信息用于指示跨小区监控控制信道的至少一种模式,所述至少一种模式中包括第一模式,所述第一模式包括在第二小区上监控第一小区的控制信道;所述网络设备向所述终端设备发送第一信息,所述第一信息用于指示跨小区监控控制信道。The network device sends configuration information to the terminal device, the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, the at least one mode includes the first mode, and the first mode is included in the second cell Monitor the control channel of the first cell; the network device sends first information to the terminal device, and the first information is used to indicate the cross-cell monitoring control channel.
在一种可能的设计中,所述至少一种模式包括两种或两种以上模式;所述方法还包括:所述网络设备向所述终端设备发送第二信息,所述第二信息用于指示跨小区监控控制信道的模式为所述第一模式。In a possible design, the at least one mode includes two or more than two modes; the method further includes: the network device sends second information to the terminal device, and the second information is used for The mode indicating the cross-cell monitoring control channel is the first mode.
在一种可能的设计中,所述网络设备向所述终端设备发送所述第一信息和/或第二信息,包括:所述网络设备向所述终端设备发送第一下行控制信息DCI,所述第一DCI包括所述第一信息和/或所述第二信息。In a possible design, the sending, by the network device, the first information and/or the second information to the terminal device includes: the network device sending the first downlink control information DCI to the terminal device, The first DCI includes the first information and/or the second information.
在一种可能的设计中,所述第一DCI中的以下一个或多个域用于承载所述第一信息: 混合自动重传请求HARQ进程编号指示域、冗余版本RV指示域、调制和编码方式指示域、频域资源指示域、时域资源分配指示域、新传数据指示域、发送功率指示域、跳频指示域、保留域。In a possible design, one or more of the following fields in the first DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and Coding mode indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
在一种可能的设计中,所述第一DCI还包括第三信息;其中,所述第三信息用于指示在所述第一小区上不监控所述第一小区的PDCCH,或者,所述第三信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。In a possible design, the first DCI further includes third information; wherein, the third information is used to indicate that the PDCCH of the first cell is not monitored on the first cell, or the The third information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
在一种可能的设计中,所述网络设备向所述终端设备发送第一DCI,包括:所述网络设备在所述第一小区上向所述终端设备发送第一DCI。In a possible design, the sending, by the network device, the first DCI to the terminal device includes: the network device sending the first DCI to the terminal device on the first cell.
在一种可能的设计中,所述网络设备向所述终端设备发送所述第一信息和/或第二信息,包括:所述网络设备向所述终端设备发送第一MAC CE,所述第一MAC CE包括所述第一信息和/或第二信息。In a possible design, the sending, by the network device, the first information and/or the second information to the terminal device includes: the network device sending a first MAC CE to the terminal device, and the first A MAC CE includes the first information and/or the second information.
在一种可能的设计中,所述第一MAC CE对应的MAC子头中包括逻辑信道标识符LCID,所述LCID用于指示所述MAC CE包括所述第一信息和/或所述第二信息。In a possible design, the MAC subheader corresponding to the first MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information. information.
在一种可能的设计中,所述方法还包括:所述网络设备向所述终端设备发送第四信息,所述第四信息用于指示去跨小区监控控制信道。In a possible design, the method further includes: the network device sends fourth information to the terminal device, where the fourth information is used to instruct to monitor the control channel across cells.
在一种可能的设计中,所述网络设备向所述终端设备发送第四信息,包括:所述网络设备向所述终端设备发送第二DCI,所述第二DCI包括所述第四信息。In a possible design, the sending of the fourth information by the network device to the terminal device includes: the network device sending a second DCI to the terminal device, and the second DCI includes the fourth information.
在一种可能的设计中,所述第二DCI还包括第五信息;所述第五信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。In a possible design, the second DCI further includes fifth information; the fifth information is used to indicate a period for monitoring the PDCCH of the first cell on the first cell.
在一种可能的设计中,所述网络设备向所述终端设备发送第二DCI,包括:所述网络设备在第二小区上向所述终端设备发送的所述第二DCI。In a possible design, the sending of the second DCI by the network device to the terminal device includes: the second DCI sent by the network device to the terminal device on the second cell.
在一种可能的设计中,所述网络设备向所述终端设备发送第四信息,包括:所述网络设备向所述终端设备发送第二MAC CE,所述第二MAC CE包括所述第四信息。In a possible design, the sending of the fourth information by the network device to the terminal device includes: the network device sends a second MAC CE to the terminal device, and the second MAC CE includes the fourth information.
在一种可能的设计中,所述第二MAC CE对应的MAC子头中包括第二LCID,所述第二LCID用于指示所述第二MAC CE包括所述第四信息。In a possible design, the MAC subheader corresponding to the second MAC CE includes a second LCID, and the second LCID is used to indicate that the second MAC CE includes the fourth information.
第三方面,本申请实施例提供一种装置,所述装置具备实现上述第一方面涉及的终端设备的功能,比如,所述装置包括所述终端设备执行上述第一方面涉及步骤所对应的模块或单元或手段(means),所述功能或单元或手段可以通过软件实现,或者通过硬件实现,也可以通过硬件执行相应的软件实现。In a third aspect, an embodiment of the present application provides a device that has the function of implementing the terminal device involved in the first aspect. For example, the device includes a module corresponding to the terminal device executing the steps involved in the first aspect. Or a unit or means (means), the function or unit or means can be realized by software, or by hardware, or by hardware executing corresponding software.
在一种可能的设计中,所述装置包括处理单元、通信单元,处理单元、通信单元执行的功能可以和上述第一方面涉及的终端设备执行的步骤相对应。In a possible design, the device includes a processing unit and a communication unit, and the functions performed by the processing unit and the communication unit may correspond to the steps performed by the terminal device involved in the first aspect.
在一种可能的设计中,所述装置包括处理器,还可以包括收发器,所述收发器用于收发信号,所述处理器执行程序指令,以完成上述第一方面中任意可能的设计或实现方式中终端设备执行的方法。In a possible design, the device includes a processor, and may also include a transceiver. The transceiver is used to send and receive signals, and the processor executes program instructions to complete any possible design or implementation in the first aspect. The method executed by the terminal device in the mode.
其中,所述装置还可以包括一个或多个存储器,所述存储器用于与处理器耦合。所述一个或多个存储器可以和处理器集成在一起,也可以与处理器分离设置,本申请并不限定。Wherein, the apparatus may further include one or more memories, and the memories are used for coupling with the processor. The one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
在一种可能的设计中,存储器保存实现上述第一方面涉及的终端设备的功能的必要计算机程序指令和/或数据。所述处理器可执行所述存储器存储的计算机程序指令,完成上述第一方面任意可能的设计或实现方式中终端设备执行的方法。In a possible design, the memory stores the necessary computer program instructions and/or data to realize the functions of the terminal device involved in the first aspect. The processor can execute the computer program instructions stored in the memory to complete the method executed by the terminal device in any possible design or implementation of the first aspect.
第四方面,本申请实施例提供一种装置,所述装置具备实现上述第二方面涉及的网络 设备的功能,比如,所述装置包括所述网络设备执行上述第二方面涉及步骤所对应的模块或单元或手段(means),所述功能或单元或手段可以通过软件实现,或者通过硬件实现,也可以通过硬件执行相应的软件实现。In a fourth aspect, an embodiment of the present application provides a device that has the function of implementing the network device involved in the second aspect. For example, the device includes a module corresponding to the network device executing the steps involved in the second aspect. Or a unit or means (means), the function or unit or means can be realized by software, or by hardware, or by hardware executing corresponding software.
在一种可能的设计中,所述装置包括处理单元、通信单元,处理单元、通信单元执行的功能可以和上述第二方面涉及的网络设备执行的步骤相对应。In a possible design, the device includes a processing unit and a communication unit, and the functions performed by the processing unit and the communication unit may correspond to the steps performed by the network device involved in the second aspect.
在一种可能的设计中,所述装置包括处理器,还可以包括收发器,所述收发器用于收发信号,所述处理器执行程序指令,以完成上述第二方面中任意可能的设计或实现方式中网络设备执行的方法。In a possible design, the device includes a processor, and may also include a transceiver. The transceiver is used to send and receive signals, and the processor executes program instructions to complete any possible design or implementation in the second aspect. The method executed by the network device in the mode.
其中,所述装置还可以包括一个或多个存储器,所述存储器用于与处理器耦合。所述一个或多个存储器可以和处理器集成在一起,也可以与处理器分离设置,本申请并不限定。Wherein, the apparatus may further include one or more memories, and the memories are used for coupling with the processor. The one or more memories may be integrated with the processor, or may be provided separately from the processor, which is not limited in this application.
在一种可能的设计中,存储器保存实现上述第二方面涉及的网络设备的功能的必要计算机程序指令和/或数据。所述处理器可执行所述存储器存储的计算机程序指令,完成上述第二方面任意可能的设计或实现方式中网络设备执行的方法。In a possible design, the memory stores necessary computer program instructions and/or data for realizing the functions of the network device involved in the second aspect. The processor can execute the computer program instructions stored in the memory to complete the method executed by the network device in any possible design or implementation of the second aspect.
第五方面,本申请实施例提供一种计算机可读存储介质,所述计算机存储介质中存储有计算机可读指令,当计算机读取并执行所述计算机可读指令时,使得计算机执行上述第一方面和第二方面的任一种可能的设计中的方法。In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores computer-readable instructions. When the computer reads and executes the computer-readable instructions, the computer is caused to execute the first Any one of the possible design methods of the aspect and the second aspect.
第六方面,本申请实施例提供一种计算机程序产品,当计算机读取并执行所述计算机程序产品时,使得计算机执行上述第一方面和第二方面的任一种可能的设计中的方法。In a sixth aspect, the embodiments of the present application provide a computer program product. When the computer reads and executes the computer program product, the computer executes any one of the possible design methods of the first aspect and the second aspect.
第七方面,本申请实施例提供一种芯片,所述芯片与存储器相连,用于读取并执行所述存储器中存储的软件程序,以实现上述第一方面和第二方面的任一种可能的设计中的方法。In a seventh aspect, an embodiment of the present application provides a chip, which is connected to a memory, and is used to read and execute a software program stored in the memory, so as to realize any one of the above-mentioned first and second aspects. Method of design.
第八方面,本申请实施例提供一种通信***,包括上述第一方面的任一种可能设计中的终端设备和上述第二方面的任一种可能设计中的网络设备。In an eighth aspect, an embodiment of the present application provides a communication system, including a terminal device in any possible design of the foregoing first aspect and a network device in any possible design of the foregoing second aspect.
附图说明Description of the drawings
图1a为本申请实施例适用的一种可能的***架构示意图;Figure 1a is a schematic diagram of a possible system architecture to which an embodiment of this application is applicable;
图1b为本申请实施例适用的又一种可能的***架构示意图;FIG. 1b is a schematic diagram of another possible system architecture to which the embodiments of this application are applicable;
图2为本申请实施例提供的一种MAC CE的结构示意图;FIG. 2 is a schematic structural diagram of a MAC CE provided by an embodiment of this application;
图3为本申请实施例提供的又一种MAC CE的结构示意图;FIG. 3 is a schematic structural diagram of another MAC CE provided by an embodiment of this application;
图4为本申请实施例一提供的通信方法所对应的流程示意图;4 is a schematic diagram of a process corresponding to the communication method provided in Embodiment 1 of this application;
图5为本申请实施例二提供的通信方法所对应的流程示意图;FIG. 5 is a schematic flowchart corresponding to the communication method provided in the second embodiment of the application;
图6为本申请实施例中所涉及的装置的可能的示例性框图;Fig. 6 is a possible exemplary block diagram of a device involved in an embodiment of this application;
图7为本申请实施例提供的一种装置的结构示意图;FIG. 7 is a schematic structural diagram of a device provided by an embodiment of the application;
图8为本申请实施例提供的一种终端设备的结构示意图;FIG. 8 is a schematic structural diagram of a terminal device provided by an embodiment of this application;
图9为本申请实施例提供的一种网络设备的结构示意图。FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of this application.
具体实施方式detailed description
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。The following describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
首先,对本申请实施例中的部分用语进行解释说明,以便于本领域技术人员理解。First, some terms in the embodiments of the present application are explained to facilitate the understanding of those skilled in the art.
(1)终端设备:可以是能够接收网络设备调度和指示信息的无线终端设备,无线终端设备可以是指向用户提供语音和/或数据连通性的设备,或具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。终端设备可以经无线接入网(如,radio access network,RAN)与一个或多个核心网或者互联网进行通信,终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话,手机(mobile phone))、计算机和数据卡,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,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、平板电脑(Pad)、带无线收发功能的电脑等设备。无线终端设备也可以称为***、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile station,MS)、远程站(remote station)、接入点(access point,AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户站(subscriber station,SS)、用户端设备(customer premises equipment,CPE)、终端(terminal)、用户设备(user equipment,UE)、移动终端(mobile terminal,MT)等。终端设备也可以是可穿戴设备以及下一代通信***,例如,5G网络中的终端设备或者未来演进的公共陆地移动网络(public land mobile network,PLMN)网络中的终端设备,NR通信***中的终端设备等。(1) Terminal device: It can be a wireless terminal device that can receive network device scheduling and instruction information. A wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or Other processing equipment connected to the wireless modem. The terminal device can communicate with one or more core networks or the Internet via a radio access network (e.g., radio access network, RAN). The terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone, mobile phone). (mobile phone)), computers and data cards, for example, may be portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets Computer (Pad), computer with wireless transceiver function and other equipment. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (subscriber station, SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc. The terminal device can also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G network or a terminal device in a future evolution public land mobile network (PLMN) network, and a terminal in the NR communication system Equipment etc.
(2)网络设备:是网络侧中一种用于发射或接收信号的实体,网络设备可以是用于与移动设备通信的设备。网络设备可以是无线局域网(wireless local area networks,WLAN)中的AP,可以是长期演进(long term evolution,LTE)中的演进型基站(evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的公共陆地移动网络(public land mobile network,PLMN)网络中的网络设备,或NR***中的新一代基站(generation Node B,gNodeB)等。另外,在本申请实施例中,网络设备为小区提供服务,终端设备通过该小区使用的通信资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据发送服务。此外,在其它可能的情况下,网络设备可以是其它为终端设备提供无线通信功能的装置。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。为方便描述,本申请实施例中,为终端设备提供无线通信功能的装置称为网络设备。(2) Network equipment: It is an entity used to transmit or receive signals on the network side. The network equipment may be a device used to communicate with mobile devices. The network equipment can be an AP in a wireless local area network (WLAN), an evolved base station (evolutional Node B, eNB, or eNodeB) in a long term evolution (LTE), or a relay station or an access point , Or in-vehicle equipment, wearable equipment, and network equipment in the future 5G network or the network equipment in the future evolved public land mobile network (PLMN) network, or the generation Node B in the NR system , GNodeB) etc. In addition, in the embodiment of the present application, the network equipment provides services for the cell, and the terminal equipment communicates with the network equipment through the communication resources (for example, frequency domain resources, or spectrum resources) used by the cell. The cell may be a network equipment. (E.g. base station) The corresponding cell, the cell can belong to a macro base station or a base station corresponding to a small cell. The small cell here can include: Metro cell, Micro cell, and Pico cell (Pico cell), femto cell (Femto cell), etc., these small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services. In addition, in other possible situations, the network device may be another device that provides wireless communication functions for the terminal device. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. For ease of description, in the embodiments of the present application, a device that provides a wireless communication function for a terminal device is called a network device.
(3)载波聚合(carrier aggregation,CA):无线通信***中,随着智能终端的用户不断增长,用户业务量和数据吞吐量也在不断增加,进而对通信带宽和速率提出了更高的要求,为此引入了CA技术。CA是将多个载波单元(component carrier,CC)聚合在一起为一个终端设备服务。实际上每个下行载波单元对应一个独立的小区,通常可以将一个下行载波单元等同于一个小区。载波聚合也可以称为小区的聚合。(3) Carrier aggregation (CA): In wireless communication systems, as the number of users of smart terminals continues to grow, user traffic and data throughput are also increasing, and higher requirements are placed on communication bandwidth and speed. For this reason, CA technology was introduced. CA aggregates multiple component carriers (CC) to serve one terminal device. In fact, each downlink carrier unit corresponds to an independent cell, and usually one downlink carrier unit can be equivalent to a cell. Carrier aggregation may also be referred to as cell aggregation.
其中,聚合的多个小区中包含一个主小区(primary cell,PCell),PCell对应的载波单元称为主载波单元(primary component carrier,PCC)。主载波单元的下行载波称为下行主 载波单元(downlink PCC,DL PCC),主载波单元的上行载波称为上行主载波单元(up link PCC,UL PCC)。Among them, the aggregated multiple cells include a primary cell (primary cell, PCell), and the carrier unit corresponding to the PCell is called a primary component carrier unit (PCC). The downlink carrier of the primary carrier unit is called the downlink PCC (DL PCC), and the uplink carrier of the primary carrier unit is called the uplink PCC (UL PCC).
聚合的多个小区中包含一个或多个辅小区(secondary Cell,SCell)。SCell对应的载波单元称为辅载波单元(secondary component carrier,SCC)。其中,辅载波单元的下行载波称为下行辅载波单元(downlink SCC,DL SCC),辅载波单元的上行载波称为上行辅载波单元(uplink SCC,UL SCC)。The aggregated multiple cells include one or more secondary cells (secondary cells, SCells). The carrier unit corresponding to the SCell is called a secondary component carrier (SCC). Among them, the downlink carrier of the secondary carrier unit is called a downlink secondary carrier unit (downlink SCC, DL SCC), and the uplink carrier of the secondary carrier unit is called an uplink secondary carrier unit (uplink SCC, UL SCC).
PCell是在终端设备和网络侧连接建立(connection establishment)时确定的,负责与终端设备之间的RRC通信;SCell是在初始安全激活流程(initial security activation procedure)之后,通过RRC连接重配置消息(RCC connection reconfiguration)添加/修改/释放的,用于提供额外的无线资源,SCell与终端设备之间不进行重要的RRC通信(如RRC链接的建立、释放等)。PCell is determined when the connection establishment between the terminal device and the network side is established, and is responsible for the RRC communication with the terminal device; the SCell is after the initial security activation procedure, through the RRC connection reconfiguration message ( RCC connection reconfiguration) is added/modified/released, and is used to provide additional radio resources. There is no important RRC communication between the SCell and the terminal device (such as the establishment and release of the RRC connection).
(4)双连接(dual connectivity,DC):终端设备支持同时接入到两个网络设备,这种接入方式称为DC,其中一个网络设备为主网络设备,另一个网络设备为辅网络设备。其中,主网络设备也可以称为主节点(master node,MN),辅网络设备也可以称为辅节点(secondary node,SN)。本申请实施例中,主网络设备为LTE网络设备(如eNB)、5G网络设备(如gNB)或未来通信网络设备中的一个,辅网络设备也为LTE网络设备、5G网络设备或未来通信网络设备中的一个,并且主网络设备和辅网络设备可以是相同制式的网络设备,比如都是eNB,也可以是不同制式的网络设备,比如主网络设备是eNB,辅网络设备是gNB。本申请对于主网络设备和辅网络设备的通信制式不做限定。(4) Dual connectivity (DC): The terminal device supports simultaneous access to two network devices. This access method is called DC, where one network device is the main network device and the other network device is the auxiliary network device . Among them, the primary network device may also be called a master node (master node, MN), and the secondary network device may also be called a secondary node (secondary node, SN). In the embodiments of this application, the primary network equipment is one of LTE network equipment (such as eNB), 5G network equipment (such as gNB) or future communication network equipment, and the auxiliary network equipment is also LTE network equipment, 5G network equipment or future communication network. One of the devices, and the main network device and the auxiliary network device may be network devices of the same standard, such as both eNBs, or network devices of different standards, for example, the main network device is an eNB, and the auxiliary network device is a gNB. This application does not limit the communication standards of the main network device and the auxiliary network device.
示例性地,主网络设备管理的小区组称为主小区组(master cell group,MCG),辅网络设备管理的小区组称为辅小区组(secondary cell group,SCG),MCG中可以包括一个或多个载波,若包括多个载波则这些载波之间可以是通过CA的方式为终端设备服务,SCG中可以包括一个或多个载波,若包括多个载波则这些载波之间可以是通过CA的方式为终端设备服务。Exemplarily, the cell group managed by the primary network device is called the master cell group (master cell group, MCG), and the cell group managed by the secondary network device is called the secondary cell group (secondary cell group, SCG), and the MCG may include one or Multiple carriers. If multiple carriers are included, these carriers can serve the terminal equipment through CA. The SCG can include one or more carriers. If multiple carriers are included, these carriers can be connected through CA. Ways to serve terminal equipment.
(5)控制信道:本申请实施例中所涉及的控制信道可以为下行控制信道,例如物理下行控制信道(physical downlink control channel,PDCCH),或者增强的物理下行控制信道(enhanced physical downlink control channel,ePDCCH),或者是其它可能的下行控制信道,具体不做限制。本申请实施例中将主要以控制信道为PDCCH为例进行描述。(5) Control channel: The control channel involved in the embodiments of this application may be a downlink control channel, such as a physical downlink control channel (PDCCH), or an enhanced physical downlink control channel, ePDCCH), or other possible downlink control channels, which are not specifically limited. In the embodiments of this application, the control channel is mainly PDCCH as an example for description.
(6)小区、载波:当终端设备和网络设备建立连接后,每个下行载波(单元)对应一个独立的小区,或者,也可以说一个小区包含一个下行载波,通常可以将1个下行载波等同于1个小区。示例性地,一个小区可以包含一个下行载波,也可以包含一个下行载波和一个上行载波,还可以包含一个下行载波和多个上行载波。本申请实施例中,载波和小区的概念可以互换。(6) Cells and carriers: After the terminal equipment and the network equipment are connected, each downlink carrier (unit) corresponds to an independent cell, or, it can also be said that a cell contains one downlink carrier, usually one downlink carrier can be equivalent In 1 cell. Exemplarily, a cell may include one downlink carrier, may also include one downlink carrier and one uplink carrier, and may also include one downlink carrier and multiple uplink carriers. In the embodiments of this application, the concepts of carrier and cell can be interchanged.
(7)BWP:在5G通信***中,为适配终端设备的带宽能力,可以在一个载波支持的带宽(可称为载波带宽,具体取值可以为10MHz、15MHz、20MHz、50MHz、100MHz或400MHz等)内为终端设备配置BWP,一个载波中可配置多个BWP,例如一个载波可以配置4个BWP。BWP有时也可称为载波带宽部分(carrier bandwidth part)、子带(subband)带宽、窄带(narrowband)带宽,或者其他的名称,本申请对名称并不做限定,为了便于描述,以名称是BWP为例说明。例如,一个BWP包含K(K>0)个子载波;或者,一个BWP为N个不重叠的RB所在的频域资源,该RB的子载波间隔可以为15KHz、30KHz、 60KHz、120KHz、240KHz、480KHz或其他值;或者,一个BWP为M个不重叠的资源块组(resource block group,RBG)所在的频域资源,例如,一个RBG包括P(P>0)个连续的RB,该RB的子载波间隔(subcarrier spacing,SCS)可以为15KHz、30KHz、60KHz、120KHz、240KHz、480KHz或其他值,例如为2的整数倍。(7) BWP: In the 5G communication system, in order to adapt to the bandwidth capability of the terminal equipment, the bandwidth supported by a carrier (can be called carrier bandwidth, the specific value can be 10MHz, 15MHz, 20MHz, 50MHz, 100MHz or 400MHz) Etc.) BWP is configured for the terminal device, and multiple BWPs can be configured in one carrier, for example, four BWPs can be configured in one carrier. BWP is sometimes called carrier bandwidth part, subband bandwidth, narrowband bandwidth, or other names. This application does not limit the name. For ease of description, the name is BWP Take an example. For example, a BWP includes K (K>0) subcarriers; or, a BWP is a frequency domain resource where N non-overlapping RBs are located, and the subcarrier spacing of the RB can be 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, 480KHz Or other values; or, a BWP is a frequency domain resource where M non-overlapping resource block groups (RBG) are located. For example, an RBG includes P (P>0) consecutive RBs, and the children of this RB Subcarrier spacing (SCS) may be 15KHz, 30KHz, 60KHz, 120KHz, 240KHz, 480KHz or other values, for example, an integer multiple of 2.
针对于一个小区(载波),若其包括多个BWP,则网络设备可以为终端设备激活其中的一个BWP进行通信。示例性地,当引入BWP后,本申请实施例中所涉及的在第二小区上监控第一小区的PDCCH,可以理解为在第二小区的激活的BWP上监控第一小区的BWP的PDCCH。For a cell (carrier), if it includes multiple BWPs, the network device can activate one of the BWPs for the terminal device to communicate. Exemplarily, when the BWP is introduced, monitoring the PDCCH of the first cell on the second cell involved in the embodiments of the present application can be understood as monitoring the PDCCH of the BWP of the first cell on the activated BWP of the second cell.
(8)本申请实施例中的术语“***”和“网络”可被互换使用。“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b,或c中的至少一项(个),可以表示:a,b,c,a-b,a-c,b-c,或a-b-c,其中a,b,c可以是单个,也可以是多个。(8) The terms "system" and "network" in the embodiments of this application can be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one item (a) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
以及,除非有特别说明,本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分,不用于限定多个对象的顺序、时序、优先级或者重要程度。例如,第一信息和第二信息,只是为了区分不同的信息,而并不是表示这两种信息的优先级或者重要程度等的不同。And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or importance of multiple objects. degree. For example, the first information and the second information are only used to distinguish different information, but do not indicate the difference in priority or importance of the two types of information.
图1a为本申请实施例适用的一种可能的***架构示意图。如图1a所示的***架构包括网络设备101和终端设备102。网络设备101具有多个小区(比如小区1a和小区2a),多个小区通过CA的方式为终端设备102服务。也就是说,图1a所示意的***架构可以理解为CA架构。FIG. 1a is a schematic diagram of a possible system architecture to which an embodiment of this application is applicable. The system architecture shown in FIG. 1a includes a network device 101 and a terminal device 102. The network device 101 has multiple cells (for example, a cell 1a and a cell 2a), and the multiple cells serve the terminal device 102 in a CA manner. In other words, the system architecture shown in Figure 1a can be understood as a CA architecture.
图1b为本申请实施例适用的又一种可能的***架构示意图。如图1b所示的***架构包括网络设备1011、网络设备1012和终端设备102。网络设备1011和网络设备1012共同为终端设备102服务,其中,网络设备1011为主网络设备,网络设备1012为辅网络设备,或者,网络设备1011为辅网络设备,网络设备1012为主网络设备,具体不做限定。也就是说,图1b所示意的***架构可以理解为DC架构。FIG. 1b is a schematic diagram of another possible system architecture to which the embodiments of this application are applicable. The system architecture shown in FIG. 1b includes a network device 1011, a network device 1012, and a terminal device 102. The network device 1011 and the network device 1012 jointly serve the terminal device 102, where the network device 1011 is the main network device and the network device 1012 is the auxiliary network device, or the network device 1011 is the auxiliary network device and the network device 1012 is the main network device, The details are not limited. In other words, the system architecture shown in Figure 1b can be understood as a DC architecture.
进一步地,网络设备1011可以具有多个小区(比如小区1b和小区2b),该多个小区通过CA的方式为终端设备102服务。网络设备1012也可以具有多个小区(比如小区3b和小区4b),该多个小区通过CA的方式为终端设备102服务。此种情形下,图1b所示意的***架构可以理解为DC+CA架构。Further, the network device 1011 may have multiple cells (such as a cell 1b and a cell 2b), and the multiple cells serve the terminal device 102 in a CA manner. The network device 1012 may also have multiple cells (for example, a cell 3b and a cell 4b), and the multiple cells serve the terminal device 102 in a CA manner. In this case, the system architecture shown in Figure 1b can be understood as a DC+CA architecture.
针对于图1a和图1b所示意的***架构,应理解,本申请实施例对***架构中网络设备的数量、终端设备的数量不作限定,而且本申请实施例所适用的***架构中除了包括网络设备和终端设备以外,还可以包括其它设备,如核心网设备、无线中继设备和无线回传设备等,对此本申请实施例也不作限定。以及,本申请实施例中的网络设备可以将所有的功能集成在一个独立的物理设备,也可以将功能分布在多个独立的物理设备上,对此本申请实施例也不作限定。此外,本申请实施例中的终端设备可以通过无线方式与网络设备连接。Regarding the system architecture shown in Figures 1a and 1b, it should be understood that the embodiment of the present application does not limit the number of network devices and the number of terminal devices in the system architecture, and the system architecture to which the embodiment of the present application applies except for the network In addition to devices and terminal devices, other devices may also be included, such as core network devices, wireless relay devices, and wireless backhaul devices, which are not limited in the embodiment of the present application. And, the network device in the embodiment of the present application may integrate all functions in one independent physical device, or may distribute the functions on multiple independent physical devices, which is not limited in the embodiment of the present application. In addition, the terminal device in the embodiment of the present application may be connected to the network device in a wireless manner.
上述所示意的***架构可以适用于各种无线接入技术(radio access technology,RAT)的通信***中,例如5G通信***以及未来可能出现的通信***。本申请实施例描述的***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,随着通信***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。The system architecture shown above can be applied to various radio access technology (RAT) communication systems, such as 5G communication systems and communication systems that may appear in the future. The system architecture and business scenarios described in the embodiments of this application are intended to illustrate the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with communication With the evolution of the system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.
以图1a所示意的***架构为例,网络设备101可以在小区1a或小区1b上向终端设备102传输PDSCH,而PDSCH一般是通过PDCCH中承载的控制信息来调度,控制信息例如为DCI。因此,为了在小区1a或小区1b上正确接收PDSCH,终端设备102需要先在小区1a或小区1b上监控PDCCH,并通过监控PDCCH获取PDCCH中承载的DCI,进而获得用于接收PDSCH所需要的相关信息,例如PDSCH时频资源位置和大小等。类似的,终端设备102可以在小区1a或小区1b上向网络设备101传输PUSCH,而PUSCH一般是通过PDCCH中承载的控制信息来调度,控制信息例如为DCI。因此,为了在小区1a或小区1b上正确发送PUSCH,终端设备102需要先在小区1a或小区1b上监控PDCCH,并通过监控PDCCH获取PDCCH承载的DCI,进而获得用于发送PUSCH所需要的相关信息,例如PUSCH时频资源位置和大小等。为描述简单,本发明实施例以下行数据PDSCH传输为例进行描述,实施例相关方法或设备也可以用于上行数据PUSCH的传输。其中,监控PDCCH也可以描述为监听PDCCH。Taking the system architecture shown in FIG. 1a as an example, the network device 101 can transmit the PDSCH to the terminal device 102 on the cell 1a or the cell 1b, and the PDSCH is generally scheduled through control information carried in the PDCCH, and the control information is, for example, DCI. Therefore, in order to correctly receive PDSCH on cell 1a or cell 1b, the terminal device 102 needs to monitor the PDCCH on cell 1a or cell 1b first, and obtain the DCI carried in the PDCCH by monitoring the PDCCH, and then obtain the relevant information required for receiving the PDSCH. Information, such as the location and size of PDSCH time-frequency resources. Similarly, the terminal device 102 can transmit the PUSCH to the network device 101 on the cell 1a or the cell 1b, and the PUSCH is generally scheduled through the control information carried in the PDCCH, and the control information is, for example, DCI. Therefore, in order to correctly transmit PUSCH on cell 1a or cell 1b, terminal device 102 needs to monitor PDCCH on cell 1a or cell 1b first, and obtain the DCI carried by the PDCCH by monitoring the PDCCH, and then obtain the relevant information needed for sending PUSCH , Such as PUSCH time-frequency resource location and size. For simplicity of description, the embodiment of the present invention will be described as an example for PDSCH transmission of the following row data, and the related method or device of the embodiment may also be used for the transmission of uplink data PUSCH. Among them, monitoring PDCCH can also be described as monitoring PDCCH.
考虑到监控PDCCH的复杂度较大,若终端设备在多个小区上都需进行PDCCH的监控,则会消耗大量的功耗,因此,本申请实施例提供一些可能的节能方案,比如,当业务数据间隔期间可以通过调整终端设备在某个或某些小区上监控PDCCH的周期(如拉长监控PDCCH的周期)或关闭终端设备在某个或某些小区上对PDCCH的监控,来达到节电的效果。举个例子,终端设备在小区1a上监控PDCCH的周期为2个时隙(slot),为节省功耗,可以将终端设备在小区1a上监控PDCCH的周期调整为6个时隙,或者,关闭终端设备在小区1a上对PDCCH的监控。所谓拉长PDCCH监控周期也可以理解为在相同时间内终端需要监控PDCCH的次数变少。其中,监控PDCCH的周期的单位可以为时隙、子帧(sub-frame)、传输时间间隔(transmission time interval,TTI)或其它可能的时间单元,具体不做限定,本申请实施例中主要是以监控PDCCH的周期的单位为时隙为例进行描述。Considering the complexity of monitoring PDCCH, if terminal equipment needs to monitor PDCCH in multiple cells, it will consume a lot of power consumption. Therefore, the embodiments of this application provide some possible energy saving solutions, such as During the data interval, power saving can be achieved by adjusting the period of terminal equipment monitoring PDCCH on a certain cell or certain cells (such as lengthening the period of monitoring PDCCH) or turning off terminal equipment monitoring of PDCCH on certain cell or certain cells. Effect. For example, the period for terminal equipment to monitor PDCCH on cell 1a is 2 slots. To save power consumption, the period for terminal equipment to monitor PDCCH on cell 1a can be adjusted to 6 time slots, or turned off The terminal equipment monitors the PDCCH on the cell 1a. The so-called lengthening of the PDCCH monitoring period can also be understood as a decrease in the number of times the terminal needs to monitor the PDCCH in the same time. Among them, the unit for monitoring the PDCCH period can be a time slot, a sub-frame (sub-frame), a transmission time interval (TTI) or other possible time units, which are not specifically limited. In the embodiment of the application, it is mainly Take the time slot as the unit of the period of monitoring the PDCCH as an example for description.
然而,在一种可能的场景(称为场景1)中,当拉长了终端设备在小区1a上监控PDCCH的周期或者关闭终端设备在小区1a上对PDCCH的监控后,若未预先配置由其它小区(比如小区2a)跨小区调度小区1a,则当终端设备在小区1a上存在数据传输的紧急需求而需要监控小区1a的PDCCH时,一方面,由于终端设备在小区1a的监控周期较长或者关闭了在小区1a上监控PDCCH,从而导致终端设备无法通过自调度的PDCCH快速恢复监控小区1a的PDCCH的功能;另一方面,由于跨小区调度是由网络设备通过无线资源控制(radio resource control,RRC)信令配置的,终端设备接收RRC信令的时延较大,从而导致终端设备也无法通过新配置跨小区调度的PDCCH快速恢复监控小区1a的PDCCH的功能。也就是说,当拉长了终端设备在小区1a上监控PDCCH的周期或者关闭终端设备在小区1a上对PDCCH的监控后,若未预先配置由其它小区跨小区调度小区1a,则将无法快速恢复监控小区1a的PDCCH的功能,从而会影响数据传输的及时性。However, in a possible scenario (called scenario 1), when the period for the terminal device to monitor the PDCCH on the cell 1a is lengthened or the terminal device’s monitoring of the PDCCH on the cell 1a is turned off, if it is not pre-configured by other When a cell (such as cell 2a) cross-cell scheduling cell 1a, when terminal equipment has an urgent need for data transmission on cell 1a and needs to monitor the PDCCH of cell 1a, on the one hand, because the terminal equipment has a longer monitoring period in cell 1a or The PDCCH monitoring on cell 1a is turned off, so that the terminal equipment cannot quickly recover the function of monitoring the PDCCH of cell 1a through the self-scheduled PDCCH; on the other hand, because cross-cell scheduling is controlled by network equipment through radio resource control (radio resource control, If the RRC) signaling is configured, the terminal device has a relatively long time delay for receiving the RRC signaling, so that the terminal device cannot quickly restore the function of monitoring the PDCCH of the cell 1a through the newly configured PDCCH for cross-cell scheduling. That is to say, when the period for the terminal equipment to monitor the PDCCH on the cell 1a is lengthened or the terminal equipment’s monitoring of the PDCCH on the cell 1a is turned off, if it is not pre-configured to schedule cell 1a across cells by other cells, it will not be able to recover quickly. The function of monitoring the PDCCH of the cell 1a will affect the timeliness of data transmission.
在又一种可能的场景(称为场景2)中,当拉长了终端设备在小区1a上监控PDCCH的周期或者关闭终端设备在小区1a上对PDCCH的监控后,若预先配置了由其它小区(比如小区2a)跨小区调度小区1a,则终端设备可以在小区2a上监控小区1a的PDCCH,从而实现数据的及时传输。但此种情况下,若需要停止小区2a跨小区调度小区1a,则需要通过RRC重配置方可停止,从而会存在时延较大的问题。In another possible scenario (called scenario 2), when the period for the terminal device to monitor PDCCH on cell 1a is lengthened or the terminal device’s monitoring of PDCCH on cell 1a is turned off, if it is pre-configured by other cells (For example, cell 2a) When cell 1a is scheduled across cells, the terminal device can monitor the PDCCH of cell 1a on cell 2a, so as to realize timely data transmission. However, in this case, if it is necessary to stop cell 2a from inter-cell scheduling cell 1a, RRC reconfiguration is required to stop it, which may cause a large time delay.
基于此,本申请实施例提供一种通信方法,该方法可以包括:网络设备向终端设备发送配置信息,配置信息用于指示跨小区监控PDCCH,相应地,终端设备接收配置信息;以及,网络设备向终端设备发送信息1,信息1用于指示激活或去激活跨小区监控PDCCH,相应地,终端设备接收信息1。采用该方法,可以灵活地激活或去激活跨小区监控PDCCH,从而使得终端设备在CA(和/或DC)方式下可以灵活地在不同小区上进行PDCCH监控的转换,节省终端设备的功耗。如此,一方面,当该方法应用于上述场景1时,网络设备可以为终端设备配置跨小区监控PDCCH,配置后并未激活(区别于现有技术中的跨小区调度,跨小区调度配置后即激活),而是当需要激活时,由网络设备发送信息1来激活,由于本申请实施例能够快速激活跨小区监控PDCCH,从而能够快速恢复监控小区1a的PDCCH的功能。另一方面,当应用于上述场景2时,跨小区监控PDCCH的配置信息可以复用跨小区调度的配置信息,当需要停止跨小区监控(或者说去激活跨小区监控)时,可以由网络设备发送信息1来实现快速去激活跨小区监控PDCCH。Based on this, an embodiment of the present application provides a communication method, which may include: a network device sends configuration information to a terminal device, the configuration information is used to instruct cross-cell monitoring of the PDCCH, and the terminal device receives the configuration information accordingly; and, the network device Send information 1 to the terminal device, and information 1 is used to indicate activation or deactivation of the cross-cell monitoring PDCCH, and accordingly, the terminal device receives information 1. By adopting this method, the cross-cell monitoring PDCCH can be flexibly activated or deactivated, so that the terminal device can flexibly switch the PDCCH monitoring on different cells in the CA (and/or DC) mode, and save the power consumption of the terminal device. In this way, on the one hand, when the method is applied to the above scenario 1, the network device can configure the cross-cell monitoring PDCCH for the terminal device, and it is not activated after the configuration (different from the cross-cell scheduling in the prior art, the cross-cell scheduling is configured Activate), but when activation is needed, the network device sends information 1 to activate. Since the embodiment of the present application can quickly activate the cross-cell monitoring PDCCH, the function of monitoring the PDCCH of the cell 1a can be quickly restored. On the other hand, when applied to the above scenario 2, the configuration information of cross-cell monitoring PDCCH can reuse the configuration information of cross-cell scheduling. When cross-cell monitoring needs to be stopped (or cross-cell monitoring is deactivated), the network equipment can Send message 1 to quickly deactivate the cross-cell monitoring PDCCH.
可以理解地,本申请实施例所描述的方案可以适用于多种可能的场景中,而并不限于上述所描述的场景1和场景2。Understandably, the solutions described in the embodiments of the present application can be applied to multiple possible scenarios, and are not limited to the scenarios 1 and 2 described above.
在下文的介绍过程中,以本申请实施例所提供的方法应用于图1a所示的***架构为例。另外,该方法可由两个通信装置执行,这两个通信装置例如为第一通信装置和第二通信装置,其中,第一通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置,当然还可以是其他通信装置,例如芯片或芯片***。第二通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置,当然还可以是其他通信装置,例如芯片或芯片***。为了便于介绍,在下文中,以该方法由网络设备和终端设备执行为例,也就是,以第一通信装置是网络设备、第二通信装置是终端设备为例。如果将本实施例应用在图1a所示的***架构,下文中所述的网络设备(比如用于执行图4或图5所示实施例的网络设备)可以是图1a所示的***架构中的网络设备,下文中所述的终端设备(比如用于执行图4或图5所示实施例的终端设备)可以是图1a所示的***架构中的终端设备。In the following introduction, the method provided by the embodiment of the present application is applied to the system architecture shown in FIG. 1a as an example. In addition, the method can be executed by two communication devices, such as a first communication device and a second communication device, where the first communication device can be a network device or can support the network device to implement the functions required by the method. Of course, the communication device may also be other communication devices, such as a chip or a chip system. The second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, and of course it may also be another communication device, such as a chip or a chip system. For ease of introduction, in the following, the method is executed by the network device and the terminal device as an example, that is, the first communication device is the network device and the second communication device is the terminal device as an example. If this embodiment is applied to the system architecture shown in FIG. 1a, the network device described below (for example, the network device used to execute the embodiment shown in FIG. 4 or FIG. 5) may be in the system architecture shown in FIG. 1a The terminal device described below (such as the terminal device used to implement the embodiment shown in FIG. 4 or FIG. 5) may be a terminal device in the system architecture shown in FIG. 1a.
下面对本申请实施例所涉及的相关技术特征进行描述。The following describes the relevant technical features involved in the embodiments of the present application.
(1)网络设备向终端设备发送配置信息,配置信息用于指示跨小区监控PDCCH;相应地,终端设备接收网络设备发送的配置信息。(1) The network device sends configuration information to the terminal device, and the configuration information is used to instruct the cross-cell monitoring of the PDCCH; accordingly, the terminal device receives the configuration information sent by the network device.
示例性地,网络设备可以通过高层信令将配置信息发送给终端设备,高层信令可以是指高层协议层发出的信令,高层协议层为物理层以上的至少一个协议层。其中,高层协议层可以包括以下协议层中的至少一个:MAC层、无线链路控制(radio link control,RLC)层、分组数据会聚协议(packet data convergence protocol,PDCP)层、RRC层和非接入层(non access stratum,NAS)。示例性地,网络设备可以在终端设备的一个或多个服务小区中的任一服务小区上向终端设备发送配置信息,具体不做限定。Exemplarily, the network device may send configuration information to the terminal device through high-level signaling. The high-level signaling may refer to signaling sent by a high-level protocol layer, and the high-level protocol layer is at least one protocol layer above the physical layer. The high-level protocol layer may include at least one of the following protocol layers: MAC layer, radio link control (RLC) layer, packet data convergence protocol (PDCP) layer, RRC layer, and non-connected Access layer (non-access stratum, NAS). Exemplarily, the network device may send configuration information to the terminal device on any one of the one or more serving cells of the terminal device, which is not specifically limited.
此处,网络设备可以具有多个小区,多个小区可以包括第一小区和第二小区,还可以 包括第三小区、第四小区和第五小区。多个小区可以通过CA的方式为终端设备提供服务。Here, the network device may have multiple cells, and the multiple cells may include a first cell and a second cell, and may also include a third cell, a fourth cell, and a fifth cell. Multiple cells can provide services for terminal devices through CA.
示例性地,配置信息可以用于指示跨小区监控PDCCH的至少一种模式,至少一种模式可以包括一种或多种模式。Exemplarily, the configuration information may be used to indicate at least one mode of PDCCH monitoring across cells, and the at least one mode may include one or more modes.
在一个示例中,至少一种模式可以包括网络设备针对于多个小区中的某一小区(比如第一小区)配置的一种或多种模式,此种情形下,比如至少一种模式包括第一模式、第二模式和第三模式,其中,第一模式包括在第二小区上监控第一小区的PDCCH,第二模式包括在第三小区上监控第一小区的PDCCH,第三模式包括在第四小区上监控第一小区的PDCCH。下文中将主要以该示例为例进行描述。In an example, the at least one mode may include one or more modes configured by the network device for a certain cell (such as the first cell) of the multiple cells. In this case, for example, the at least one mode includes the first A mode, a second mode and a third mode, wherein the first mode includes monitoring the PDCCH of the first cell on the second cell, the second mode includes monitoring the PDCCH of the first cell on the third cell, and the third mode includes The PDCCH of the first cell is monitored on the fourth cell. The following will mainly take this example as an example for description.
在又一个示例中,至少一种模式可以是指网络设备针对多个小区中的两个或两个以上小区配置的多种模式,此种情形下,针对于每个小区均可以配置一种或多种模式。比如,至少一种模式包括第一模式、第二模式、第三模式、第四模式和第五模式,其中,第一模式包括在第二小区上监控第一小区的PDCCH,第二模式包括在第三小区上监控第一小区的PDCCH,第三模式包括在第四小区上监控第三小区的PDCCH,第四模式包括在第五小区上监控第三小区的PDCCH,第五模式包括在第五小区上监控第四小区的PDCCH。其中,第一模式和第二模式为针对第一小区配置的两种模式,第三模式和第四模式为针对第三小区配置的两种模式,第五模式为针对第四小区配置的一种模式。In another example, the at least one mode may refer to multiple modes configured by the network device for two or more of the multiple cells. In this case, one or more modes can be configured for each cell. Multiple modes. For example, at least one mode includes a first mode, a second mode, a third mode, a fourth mode, and a fifth mode, where the first mode includes monitoring the PDCCH of the first cell on the second cell, and the second mode includes The third cell monitors the PDCCH of the first cell. The third mode includes monitoring the PDCCH of the third cell on the fourth cell. The fourth mode includes monitoring the PDCCH of the third cell on the fifth cell. The fifth mode includes monitoring the PDCCH of the third cell on the fifth cell. The PDCCH of the fourth cell is monitored on the cell. Among them, the first mode and the second mode are two modes configured for the first cell, the third mode and the fourth mode are two modes configured for the third cell, and the fifth mode is one configured for the fourth cell. mode.
需要说明的是,本申请实施例中所涉及的第一小区的PDCCH,可以理解为用于第一小区的PDCCH,或者为第一小区服务的PDCCH,或者服务于第一小区的PDCCH。It should be noted that the PDCCH of the first cell involved in the embodiments of the present application can be understood as the PDCCH used for the first cell, or the PDCCH serving the first cell, or the PDCCH serving the first cell.
本申请实施例中,配置信息可以具有多种可能的结构,下面针对配置信息的一些可能的结构进行描述。In the embodiments of the present application, the configuration information may have a variety of possible structures. The following describes some possible structures of the configuration information.
在一种可能的实现方式(称为实现方式1)中,网络设备可以针对一个小区配置一种模式,如下为针对某一个小区的配置信息的结构示例(该配置信息的结构可以适用于各个小区):In a possible implementation (referred to as implementation 1), the network device can configure a mode for a cell. The following is an example of the structure of configuration information for a cell (the structure of the configuration information can be applied to each cell ):
Figure PCTCN2019101222-appb-000001
Figure PCTCN2019101222-appb-000001
在上述结构中,CHOICE表示在所列的信息选项中选择一个进行配置。本结构中有两个选项,一个是own表示该小区不配置跨小区监控PDCCH,即该小区在自己小区上监控PDCCH;另一个是other,表示该小区配置跨小区监控PDCCH,即在其他小区上监控该小区的PDCCH。In the above structure, CHOICE means to select one of the listed information options for configuration. There are two options in this structure. One is own, which means that the cell is not configured with cross-cell monitoring PDCCH, that is, the cell monitors PDCCH on its own cell; the other is other, which means that the cell is configured with cross-cell monitoring PDCCH, that is, on other cells Monitor the PDCCH of the cell.
基于上述结构,假设网络设备具有第一小区、第二小区、第三小区、第四小区和第五小区,网络设备针对第一小区配置第一模式。此种情形下,第一小区的配置信息中可以包 括第一小区的标识,第一小区的标识可以为用于终端设备在跨小区监控PDCCH中识别第一小区的PDCCH的信息,其可以为能够标识第一小区的信息。在一个示例中,考虑到一个小区可以对应一个下行载波,因此,第一小区的标识也可以为能够标识第一小区对应的(下行)载波的信息,比如载波指示信息(即cif-InControlingCell的取值)或者CIF的取值。Based on the above structure, it is assumed that the network device has a first cell, a second cell, a third cell, a fourth cell, and a fifth cell, and the network device configures the first mode for the first cell. In this case, the configuration information of the first cell may include the identity of the first cell. The identity of the first cell may be information for the terminal device to identify the PDCCH of the first cell in the cross-cell monitoring PDCCH, which may be Identify the information of the first cell. In an example, considering that one cell can correspond to one downlink carrier, the identity of the first cell can also be information that can identify the (downlink) carrier corresponding to the first cell, such as carrier indication information (that is, the fetch of cif-InControlingCell). Value) or the value of CIF.
当网络设备进行第一小区的配置时,在第一小区的CrossCarrierPDCCHMonitoring结构中可以选择other(表示可以在其他小区上监控该小区的PDCCH),第一小区的配置信息中可以包括第二小区的标识,对应上述结构示例中的controlingCellId,还可以包括第一小区的标识,第一小区的标识可以为用于在第二小区上区分为第一小区服务的PDCCH的载波指示信息,对应上述结构示例中的cif-InControlingCell,比如为1。相应地,终端设备接收到第一小区的配置信息后,根据other获知可以在其他小区上监控第一小区的PDCCH,以及根据controlingCellId获知可以在第二小区上监控第一小区的PDCCH,根据cif-InControlingCell获知在第二小区上监控PDCCH时,若PDCCH中携带的CIF的取值为cif-InControlingCell的取值,则确定该PDCCH为第一小区的PDCCH。When the network device configures the first cell, you can select other in the CrossCarrierPDCCHMonitoring structure of the first cell (indicating that the PDCCH of the cell can be monitored on other cells), and the configuration information of the first cell can include the identity of the second cell Corresponding to the controllingCellId in the foregoing structural example, it may also include the identity of the first cell. The identity of the first cell may be carrier indication information used to distinguish the PDCCH serving the first cell on the second cell, corresponding to the foregoing structural example The cif-InControlingCell, for example, 1. Correspondingly, after receiving the configuration information of the first cell, the terminal device learns that it can monitor the PDCCH of the first cell on other cells according to other, and learns that it can monitor the PDCCH of the first cell on the second cell according to the controllingCellId, according to cif- When the InControlingCell learns that the PDCCH is monitored on the second cell, if the value of the CIF carried in the PDCCH is the value of cif-InControlingCell, it is determined that the PDCCH is the PDCCH of the first cell.
当网络设备进行第二小区的配置时,在第二小区的CrossCarrierPDCCHMonitoring结构中可以选择own(表示该小区在自己小区上监控PDCCH),第二小区的配置信息中可以包括用于指示DCI中是否包含载波指示域(carrier indicator field,CIF)的信息,对应上述结构示例中的cif-Presence。当第二小区配置为控制其他小区的PDCCH的小区时,cif-Presence可以配置为True,表示需要在DCI信息中包含载波指示域(carrier indicator field,CIF)。比如第二小区配置为控制第一小区的PDCCH的小区,当在第二小区上发送第二小区的PDCCH时,DCI中包含的CIF取值为0;当在第二小区上发送第一小区的PDCCH时,DCI中包含的CIF的取值取决于第一小区上的相关配置,比如第一小区的配置信息中cif-InControlingCell为1,则此处的CIF=1。相应地,终端设备接收到第二小区的配置信息后,根据own获知可以在第二小区上监控第二小区的PDCCH,根据cif-Presence获知在第二小区发送的PDCCH中携带CIF(即在第二小区上发送的PDCCH有可能是第二小区的PDCCH,也有可能是其它小区的PDCCH,具体可以依据PDCCH中携带的CIF来区分),进而在第二小区上监控PDCCH时,若确定PDCCH携带的CIF=0,则获知该PDCCH为第二小区的PDCCH,若确定PDCCH携带的CIF=1,则(结合第一小区的配置信息)获知该PDCCH为第一小区的PDCCH。When the network device configures the second cell, in the CrossCarrierPDCCHMonitoring structure of the second cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the second cell can include instructions for indicating whether the DCI contains The information of the carrier indicator field (CIF) corresponds to the cif-Presence in the foregoing structural example. When the second cell is configured as a cell that controls the PDCCH of other cells, the cif-Presence can be configured as True, which means that the DCI information needs to include a carrier indicator field (CIF). For example, the second cell is configured as the cell that controls the PDCCH of the first cell. When the PDCCH of the second cell is sent on the second cell, the CIF contained in the DCI takes the value 0; when the PDCCH of the first cell is sent on the second cell In the case of PDCCH, the value of the CIF included in the DCI depends on the related configuration on the first cell. For example, if the configuration information of the first cell contains cif-InControlingCell as 1, then CIF=1 here. Correspondingly, after receiving the configuration information of the second cell, the terminal device knows that the PDCCH of the second cell can be monitored on the second cell according to own, and knows that the PDCCH sent by the second cell carries CIF according to the cif-Presence (that is, in the first cell). The PDCCH sent on the second cell may be the PDCCH of the second cell or the PDCCH of other cells, which can be distinguished according to the CIF carried in the PDCCH). When monitoring the PDCCH on the second cell, if it is determined that the PDCCH carries If CIF=0, it is learned that the PDCCH is the PDCCH of the second cell, and if it is determined that the PDCCH carries CIF=1, then (combined with the configuration information of the first cell) it is learned that the PDCCH is the PDCCH of the first cell.
当网络设备进行第三小区的配置时,在第三小区的CrossCarrierPDCCHMonitoring结构中可以选择own(表示该小区在自己小区上监控PDCCH),第三小区的配置信息中可以包括用于指示DCI中是否包含CIF的信息,对应上述结构示例中的cif-Presence。当第三小区不配置为控制其他小区的PDCCH的小区时,cif-Presence可以配置为False,表示在该小区上发送的DCI中不需要包含CIF。相应地,终端设备接收到第三小区的配置信息后,根据own获知可以在第三小区上监控第三小区的PDCCH,根据cif-Presence获知在第三小区发送的PDCCH中没有携带CIF,即第三小区上发送的PDCCH均为第三小区的PDCCH。网络设备进行第四小区或第五小区的配置可以参见第三小区的配置,不再赘述。When the network device configures the third cell, in the CrossCarrierPDCCHMonitoring structure of the third cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the third cell can include instructions for indicating whether the DCI contains The CIF information corresponds to the cif-Presence in the above structural example. When the third cell is not configured as a cell that controls the PDCCH of other cells, cif-Presence can be configured as False, which means that the DCI sent on this cell does not need to include CIF. Correspondingly, after receiving the configuration information of the third cell, the terminal device knows that the PDCCH of the third cell can be monitored on the third cell according to own, and knows that the PDCCH sent by the third cell does not carry CIF according to the cif-Presence, that is, the first The PDCCHs sent on the three cells are all PDCCHs of the third cell. For the configuration of the fourth cell or the fifth cell by the network equipment, refer to the configuration of the third cell, which will not be repeated.
在又一种可能的实现方式(称为实现方式2)中,网络设备可以针对一个小区配置多种模式,以针对一个小区配置两种模式为例,如下为针对某一个小区的配置信息的结构示例(该配置信息的结构可以适用于各个小区):In another possible implementation (called implementation 2), the network device can configure multiple modes for a cell. Take the configuration of two modes for a cell as an example. The following is the structure of configuration information for a cell Example (The structure of the configuration information can be applied to each cell):
Figure PCTCN2019101222-appb-000002
Figure PCTCN2019101222-appb-000002
在上述结构中,CHOICE表示在所列的信息选项中选择一个进行配置。本结构中有两个选项,一个是own表示该小区不配置跨小区监控PDCCH,即该小区在自己小区上监控PDCCH;另一个是other,表示该小区配置跨小区监控PDCCH,即在其他小区上监控该小区的PDCCH。In the above structure, CHOICE means to select one of the listed information options for configuration. There are two options in this structure. One is own, which means that the cell is not configured with cross-cell monitoring PDCCH, that is, the cell monitors PDCCH on its own cell; the other is other, which means that the cell is configured with cross-cell monitoring PDCCH, that is, on other cells Monitor the PDCCH of the cell.
基于上述结构,假设网络设备具有第一小区、第二小区、第三小区、第四小区和第五小区,网络设备针对第一小区配置第一模式和第二模式。Based on the above structure, it is assumed that the network device has a first cell, a second cell, a third cell, a fourth cell, and a fifth cell, and the network device configures the first mode and the second mode for the first cell.
当网络设备进行第一小区的配置时,在第一小区的CrossCarrierPDCCHMonitoring结构中可以选择other(表示可以在其他小区上监控该小区的PDCCH)。第一小区的配置信息中包括第二小区的标识,对应上述结构示例中mode1的controlingCellId,还包括用于在第二小区上区分为不同小区服务的PDCCH的载波指示信息,对应上述结构示例中mode1的cif-InControlingCell,比如为1;第一小区的配置信息中还包括第三小区的标识,对应上述结构示例中mode2的controlingCellId,还包括用于在第三小区上区分为不同小区服务的PDCCH的载波指示信息,对应上述结构示例中mode2的cif-InControlingCell,比如为2。相应地,终端设备接收到第一小区的配置信息后,根据other获知可以在其他小区上监控第一小区的PDCCH,以及根据mode1中的controlingCellId获知可以在第二小区上监控第一小区的PDCCH,根据mode1中的cif-InControlingCell获知在第二小区上监控PDCCH时,若PDCCH中携带的CIF的取值为mode1中的cif-InControlingCell的取值,则确定该PDCCH为第一小区的PDCCH;根据mode2中的controlingCellId获知可以在第三小区上监控第一小区的PDCCH,根据mode2中的cif-InControlingCell获知在第三小区上监控PDCCH时,若PDCCH中携带的CIF的取值为mode2中的cif-InControlingCell的取值,则确定该PDCCH为第一小区的PDCCH。When the network device configures the first cell, other can be selected in the CrossCarrierPDCCHMonitoring structure of the first cell (indicating that the PDCCH of this cell can be monitored on other cells). The configuration information of the first cell includes the identity of the second cell, corresponding to the controllingCellId of mode1 in the above structural example, and also includes carrier indication information for distinguishing PDCCH serving different cells on the second cell, corresponding to mode1 in the above structural example The cif-InControlingCell, for example, is 1. The configuration information of the first cell also includes the identity of the third cell, which corresponds to the controllingCellId of mode2 in the above structural example, and also includes the PDCCH for distinguishing service from different cells on the third cell The carrier indication information corresponds to the cif-InControlingCell of mode2 in the foregoing structural example, for example, 2. Correspondingly, after receiving the configuration information of the first cell, the terminal device learns that it can monitor the PDCCH of the first cell on other cells according to other, and learns that it can monitor the PDCCH of the first cell on the second cell according to the controllingCellId in mode1, According to the cif-InControlingCell in mode1, when the PDCCH is monitored on the second cell, if the value of the CIF carried in the PDCCH is the value of the cif-InControlingCell in mode1, it is determined that the PDCCH is the PDCCH of the first cell; according to mode2 Knowing that the PDCCH of the first cell can be monitored on the third cell according to the controllingCellId in the third cell. When knowing that the PDCCH is monitored on the third cell according to the cif-InControlingCell in mode2, if the value of the CIF carried in the PDCCH is the value of the cif-InControlingCell in mode2 The value of is determined to be the PDCCH of the first cell.
当网络设备进行第二小区的配置时,在第二小区的CrossCarrierPDCCHMonitoring结构中可以选择own(表示该小区在自己小区上监控PDCCH),第二小区的配置信息中可以 包括用于指示DCI中是否包含CIF的信息,对应上述结构示例中的cif-Presence。当第二小区配置为控制其他小区的PDCCH的小区时,cif-Presence可以配置为True,表示需要包含载波指示域(carrier indicator field,CIF)。比如第二小区配置为控制第一小区的PDCCH的小区,当在第二小区上发送第二小区的PDCCH时,DCI中包含的CIF=0;当在第二小区上发送第一小区的PDCCH时,DCI中包含的CIF的取值取决于第一小区上的相关配置,比如第一小区的配置信息中cif-InControlingCell为1,则此处的CIF=1。第三小区的配置类似于第二小区的配置,不再赘述。When the network device configures the second cell, in the CrossCarrierPDCCHMonitoring structure of the second cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the second cell can include instructions for indicating whether the DCI contains The CIF information corresponds to the cif-Presence in the above structural example. When the second cell is configured as a cell that controls the PDCCH of other cells, the cif-Presence can be configured as True, indicating that it needs to include a carrier indicator field (CIF). For example, the second cell is configured as a cell that controls the PDCCH of the first cell. When the PDCCH of the second cell is sent on the second cell, the CIF contained in the DCI=0; when the PDCCH of the first cell is sent on the second cell , The value of the CIF included in the DCI depends on the related configuration on the first cell. For example, if cif-InControlingCell in the configuration information of the first cell is 1, then CIF=1 here. The configuration of the third cell is similar to the configuration of the second cell and will not be repeated.
当网络设备进行第四小区的配置时,在第四小区的CrossCarrierPDCCHMonitoring结构中可以选择own(表示该小区在自己小区上监控PDCCH),第四小区的配置信息中可以包括用于指示DCI中是否包含CIF的信息,对应上述结构示例中的cif-Presence。当第四小区不配置为控制其他小区的PDCCH的小区时,cif-Presence可以配置为False,表示在该小区上发送的DCI中不需要包含CIF。第五小区的配置类似于第四小区的配置,不再赘述。When the network device configures the fourth cell, in the CrossCarrierPDCCHMonitoring structure of the fourth cell, you can select own (indicating that the cell monitors the PDCCH on its own cell), and the configuration information of the fourth cell can include instructions for indicating whether the DCI contains The CIF information corresponds to the cif-Presence in the above structural example. When the fourth cell is not configured as a cell that controls the PDCCH of other cells, cif-Presence can be configured as False, which means that the DCI sent on this cell does not need to include CIF. The configuration of the fifth cell is similar to the configuration of the fourth cell, and will not be repeated.
在又一种可能的实现方式(称为实现方式3)中,网络设备可以针对多个小区配置跨小区监控PDCCH,如下为针对多个小区的配置信息的结构示例(此种情况下,该配置信息可以是针对于某个终端设备配置的):In another possible implementation (referred to as implementation 3), the network device can configure cross-cell monitoring PDCCH for multiple cells. The following is an example of the structure of configuration information for multiple cells (in this case, the configuration The information can be configured for a certain terminal device):
Figure PCTCN2019101222-appb-000003
Figure PCTCN2019101222-appb-000003
上述结构中,cell1可以理解为小区1的配置,cell2可以理解为小区2的配置,以此类推。每个小区的配置中都可以包含上述实现方式1或实现方式2中的crossCarrierPDCCHMonitoring。In the above structure, cell1 can be understood as the configuration of cell 1, cell2 can be understood as the configuration of cell 2, and so on. The configuration of each cell may include crossCarrierPDCCHMonitoring in the foregoing implementation manner 1 or implementation manner 2.
为便于描述,本申请实施例中的配置信息可以称为跨小区监控配置信息,以跨小区监控配置信息用于指示跨小区监控PDCCH的第一模式(即在第二小区上监控第一小区的PDCCH)为例,在一种可能的情形中,网络设备为终端设备配置了跨小区调度(比如在第二小区上调度第一小区),则跨小区监控配置信息可以复用跨小区调度配置信息,此时,网络设备发送的跨小区调度配置信息即为跨小区监控配置信息,具体不再赘述。此种情形下,网络设备配置了跨小区监控后,终端设备即可在第二小区上监控第一小区的PDCCH,相当于已经激活了跨小区监控;若需要去激活跨小区监控,则网络设备可以向终端设备发送信息1来去激活。在又一种可能的情形中,网络设备没有为终端设备配置跨小区调度(比 如在第二小区上调度第一小区),则可以采用与跨小区调度类似的方式来配置跨小区监控。此种情形下,网络设备配置了跨小区监控后并没有激活,若需要激活或去激活跨小区监控,则网络设备可以向终端设备发送信息1来激活或去激活。For ease of description, the configuration information in the embodiments of the present application may be referred to as cross-cell monitoring configuration information. The cross-cell monitoring configuration information is used to indicate the first mode of cross-cell monitoring of the PDCCH (that is, the monitoring of the first cell on the second cell). PDCCH) as an example. In a possible situation, the network device configures cross-cell scheduling for the terminal device (for example, scheduling the first cell on the second cell), then the cross-cell monitoring configuration information can reuse the cross-cell scheduling configuration information At this time, the cross-cell scheduling configuration information sent by the network device is the cross-cell monitoring configuration information, and the details are not repeated here. In this case, after the network equipment is configured with cross-cell monitoring, the terminal device can monitor the PDCCH of the first cell on the second cell, which is equivalent to having activated cross-cell monitoring; if cross-cell monitoring needs to be deactivated, the network equipment You can send message 1 to the terminal device to deactivate. In another possible situation, if the network device does not configure cross-cell scheduling for the terminal device (for example, scheduling the first cell on the second cell), the cross-cell monitoring can be configured in a similar manner to the cross-cell scheduling. In this case, the network device is not activated after the cross-cell monitoring is configured. If the cross-cell monitoring needs to be activated or deactivated, the network device can send a message 1 to the terminal device to activate or deactivate.
(2)网络设备向终端设备发送信息1,信息1用于指示激活或去激活跨小区监控PDCCH;相应地,终端设备接收网络设备发送的信息1。(2) The network device sends information 1 to the terminal device, which is used to indicate the activation or deactivation of the cross-cell monitoring PDCCH; accordingly, the terminal device receives the information 1 sent by the network device.
其中,信息1可以包括第一信息或第五信息,第一信息用于指示激活跨小区监控PDCCH,第五信息用于指示去激活跨小区监控PDCCH。示例性地,第一信息用于指示激活跨小区监控PDCCH,也可以理解为第一信息用于指示跨小区监控PDCCH。当需要激活跨小区监控PDCCH(或者说当需要跨小区监控PDCCH)时,网络设备可以向终端设备发送第一信息,当需要去激活跨小区监控PDCCH时,网络设备可以向终端设备发送第五信息。Wherein, the information 1 may include first information or fifth information, the first information is used to indicate the activation of the cross-cell monitoring PDCCH, and the fifth information is used to indicate the deactivation of the cross-cell monitoring PDCCH. Exemplarily, the first information is used to indicate the activation of the cross-cell monitoring PDCCH, and can also be understood as the first information used to indicate the cross-cell monitoring PDCCH. When the cross-cell monitoring PDCCH needs to be activated (or when the cross-cell monitoring PDCCH is needed), the network device can send the first information to the terminal device, and when the cross-cell monitoring PDCCH needs to be deactivated, the network device can send the fifth information to the terminal device .
本申请实施例中,网络设备可以通过多种方式向终端设备发送信息1,比如可以动态信令或半静态信令发送信息1,其中,动态信令可以理解为通过PDCCH发送的信息,比如下行控制信息(downlink control information,DCI),由于DCI直接通过物理层信息发送,从而使得终端设备接收信息1的时延较短、响应较快。半静态信令可以理解为通过媒体接入控制(medium access control,MAC)层发送的信息,比如媒体接入控制元素(medium access control control element,MAC CE),终端设备接收这种信息(如MAC CE)的时延明显短于RRC信令的时延,而且这种信息有其对应的HARQ反馈信息,可靠性较高。In the embodiment of this application, the network device can send information 1 to the terminal device in a variety of ways, such as dynamic signaling or semi-static signaling. The dynamic signaling can be understood as information sent through PDCCH, such as downlink Control information (downlink control information, DCI), because DCI is directly sent through physical layer information, the terminal device has a shorter time delay for receiving information 1 and a faster response. Semi-static signaling can be understood as information sent through the medium access control (MAC) layer, such as the medium access control element (MAC CE), and the terminal device receives this information (such as MAC). The time delay of CE) is obviously shorter than that of RRC signaling, and this kind of information has its corresponding HARQ feedback information, which is highly reliable.
下面针对网络设备发送信息1的一些可能的实现方式进行描述。The following describes some possible implementations of sending information 1 by a network device.
实现方式1:网络设备向终端设备发送DCI,DCI中包括信息1。Implementation manner 1: The network device sends DCI to the terminal device, and the DCI includes information 1.
此处,DCI可以使用小区无线网络临时标识(cell radio network temporary identifier,C-RNTI)加扰,或者,也可以使用新定义的RNTI加扰,新定义的RNTI可以为跨载波PDCCH-RNTI(cross carrier PDCCH-radio network temporary identifier,CRPDCCH-RNTI),具体不做限定。Here, DCI can be scrambled by using cell radio network temporary identifier (C-RNTI), or it can be scrambled by using newly defined RNTI, which can be cross-carrier PDCCH-RNTI (cross-carrier PDCCH-RNTI). carrier PDCCH-radio network temporary identifier, CRPDCCH-RNTI), which is not specifically limited.
本申请实施例中,DCI使用C-RNTI或新定义的RNTI加扰,可以理解为,DCI中的CRC使用C-RNTI或新定义的RNTI加扰。下面将简要描述DCI的编码过程以说明DCI使用C-RNTI加扰(此处是以DCI使用C-RNTI加扰为例,当DCI使用新定义的RNTI加扰可以参照使用C-RNTI加扰的理解)的含义,DCI的编码过程包括:步骤1,信息比特按照一定的格式(DCI format)组成信息块,或称为信息序列,如a 0,a 1,a 2,a 3,...,a A-1;步骤2,根据信息块a 0,a 1,a 2,a 3,...,a A-1生成CRC校验信息p 0,p 1,p 2,p 3,...,p L-1,在信息块上附加上CRC校验信息生成
Figure PCTCN2019101222-appb-000004
其中:b k=a k,for  k=0,1,2,...,A-1;b k=p k-A,for  k=A,A+1,A+2,...,A+L-1。步骤3,附加后,CRC校验信息可以用C-RNTI(比如x rnti,0,x rnti,1,...,x rnti,15)进行加扰生成信息序列c 0,c 1,c 2,c 3,...,c K-1,比如可以是指进行如下运算:c k=b k,for k=0,1,2,…,A+7;c k=(b k+x rnti,k-A-8)mod2,for k=A+8,A+9,A+10,...,A+23。步骤4,进行信道编码和速率匹配,完成编码过程,得到编码后的DCI。
In the embodiments of the present application, DCI uses C-RNTI or newly defined RNTI for scrambling, which can be understood as that the CRC in DCI uses C-RNTI or newly defined RNTI for scrambling. The following will briefly describe the DCI coding process to illustrate that DCI uses C-RNTI scrambling (here, DCI uses C-RNTI scrambling as an example. When DCI uses newly defined RNTI scrambling, you can refer to using C-RNTI scrambling Understand the meaning of), the DCI encoding process includes: Step 1. Information bits form information blocks according to a certain format (DCI format), or called information sequences, such as a 0 , a 1 , a 2 , a 3 ,... ,a A-1 ; Step 2, generate CRC check information p 0 , p 1 , p 2 , p 3 , according to the information blocks a 0 , a 1 , a 2 , a 3 ,..., a A-1. ..,p L-1 , add CRC check information to the information block to generate
Figure PCTCN2019101222-appb-000004
Among them: b k = a k , for k = 0,1,2,...,A-1 ; b k =p kA , for k =A,A+1,A+2,...,A+ L-1 . Step 3. After appending, the CRC check information can be scrambled with C-RNTI (such as x rnti,0 ,x rnti,1 ,...,x rnti,15 ) to generate an information sequence c 0 ,c 1 ,c 2 ,c 3 ,...,c K-1 , for example, can refer to the following operations: c k = b k , for k = 0,1,2,...,A+7; c k =(b k +x rnti,kA-8 )mod2,for k=A+8,A+9,A+10,...,A+23. Step 4. Perform channel coding and rate matching, complete the coding process, and obtain the coded DCI.
本申请实施例中的DCI可以为多种可能的格式(format)的DCI,比如DCI format 0_0、DCI format 0_1、DCI format 1_0或DCI format 1_1。DCI中可以包括混合自动重传请求进程(hybrid automatic repeat request,HARQ)进程编号(HARQ process number)指示域、 冗余版本(redundancy version,RV)指示域、调制和编码方式(modulation and coding scheme,MCS)指示域、频域资源分配(frequency domain resource assignment)指示域、时域资源分配(time domain resource assignment)指示域、新传数据(new data indicator,NDI)指示域、发送功率控制(transmit power control,TPC)指示域(可以是PUSCH的TPC或PUCCH的TPC)、跳频(frequency hopping flag)指示域、保留域中的一项或多项。以C-RNTI加扰的DCI format 1_0为例,如表1所示,为C-RNTI加扰的DCI format 1_0所包括的域示例。The DCI in the embodiment of the present application may be DCI in multiple possible formats, such as DCI format 0_0, DCI format 0_1, DCI format 1_0, or DCI format 1_1. DCI can include hybrid automatic repeat request (HARQ) process number (HARQ process number) indication field, redundancy version (redundancy version, RV) indication field, modulation and coding scheme (modulation and coding scheme, MCS) indicator field, frequency domain resource allocation (frequency domain resource assignment) indicator field, time domain resource allocation (time domain resource assignment) indicator field, new data indicator (NDI) indicator field, transmit power control (transmit power) One or more of control, TPC) indication field (which can be TPC of PUSCH or TPC of PUCCH), frequency hopping (frequency hopping flag) indication field, and reserved field. Taking C-RNTI scrambled DCI format 1_0 as an example, as shown in Table 1, it is an example of the domains included in C-RNTI scrambled DCI format 1_0.
表1:C-RNTI加扰的DCI format 1_0所包括的域示例Table 1: C-RNTI scrambled DCI format 1_0 includes domain examples
Figure PCTCN2019101222-appb-000005
Figure PCTCN2019101222-appb-000005
本申请实施例中,由于HARQ进程编号指示域、RV指示域、MCS指示域、频域资源分配指示域、时域资源分配指示域、新传数据指示域、发送功率控制指示域、跳频指示域均是在调度上行数据或下行数据传输时,用于指示相应的信息;比如,DCI format 1_0用于调度下行数据时,频域资源分配指示域用于指示下行数据所占用的频域资源。而当DCI中包括信息1时,其不再用于调度上行数据或下行数据,因此,可以借助上述域来承载信息1。在一个示例中,以下一个或多个域可以用于承载信息1:HARQ进程编号指示域、RV指示域、MCS指示域、频域资源分配指示域、时域资源分配指示域、新传数据指示域、发送功率控制指示域、跳频指示域、新扩展的第一比特域、保留域。可以理解地,也可以通过其它可能的域来承载信息1,本申请实施例对此不做限定。In the embodiment of this application, because the HARQ process number indicator field, the RV indicator field, the MCS indicator field, the frequency domain resource allocation indicator field, the time domain resource allocation indicator field, the newly transmitted data indicator field, the transmit power control indicator field, and the frequency hopping indicator The fields are used to indicate corresponding information when scheduling uplink data or downlink data transmission; for example, when DCI format 1_0 is used to schedule downlink data, the frequency domain resource allocation indication field is used to indicate frequency domain resources occupied by downlink data. When the information 1 is included in the DCI, it is no longer used for scheduling uplink data or downlink data. Therefore, the information 1 can be carried by means of the above domain. In an example, one or more of the following fields can be used to carry information 1: HARQ process number indicator field, RV indicator field, MCS indicator field, frequency domain resource allocation indicator field, time domain resource allocation indicator field, new transmission data indicator Field, transmit power control indicator field, frequency hopping indicator field, newly extended first bit field, reserved field. Understandably, other possible domains may also be used to carry the information 1, which is not limited in the embodiment of the present application.
举个例子,如表2所示,为用于承载第一信息的域和域的取值,以及如表3所示,为用于承载第五信息的域和域的取值。For example, as shown in Table 2, the values of the fields and fields used to carry the first information, and as shown in Table 3, the values of the fields and fields used to carry the fifth information.
表2:承载第一信息的域和域的取值示例Table 2: Examples of domains and domain values that carry the first information
Figure PCTCN2019101222-appb-000006
Figure PCTCN2019101222-appb-000006
表3:承载第五信息的域和域的取值示例Table 3: Examples of the fields and values of the fifth information
Figure PCTCN2019101222-appb-000007
Figure PCTCN2019101222-appb-000007
根据表2和表3的内容可知,以DCI format 0_0为例,当HARQ进程编号指示域的取值为全0,冗余版本指示域的取值为00时,说明DCI中承载的信息为第一信息;当HARQ进程编号指示域的取值为全0,且冗余版本指示域的取值为00,MCS指示域取值为全1,频域资源分配指示域取值为全1时,说明DCI中承载的信息为第五信息。或者,在其可能的示例中,也可以为当HARQ进程编号指示域的取值为全1,冗余版本指示域的取值为11时,说明DCI中承载的信息为第一信息;当HARQ进程编号指示域的取值为全1,且冗余版本指示域的取值为11,MCS指示域取值为全0,频域资源分配指示域取值为全0时,说明DCI中承载的信息为第五信息。According to the contents of Table 2 and Table 3, taking DCI format 0_0 as an example, when the value of the HARQ process number indication field is all 0 and the value of the redundancy version indication field is 00, it means that the information carried in the DCI is the first One message: When the value of the HARQ process number indication field is all 0, and the value of the redundancy version indication field is 00, the MCS indication field is all 1, and the frequency domain resource allocation indication field is all 1, It is illustrated that the information carried in the DCI is the fifth information. Or, in a possible example, when the value of the HARQ process number indication field is all 1, and the value of the redundancy version indication field is 11, it means that the information carried in the DCI is the first information; when HARQ When the value of the process number indicator field is all 1, and the value of the redundancy version indicator field is 11, the value of the MCS indicator field is all 0, and the value of the frequency domain resource allocation indicator field is all 0, it indicates that the data carried in the DCI The information is the fifth information.
示例性地,表2和表3中还可以包括新传数据指示域、发送功率控制指示域。在一个示例中,以DCI format 0_0为例,当HARQ进程编号指示域的取值为全0,冗余版本指示域的取值为00,新传数据指示域的取值为全0,发送功率控制指示域的取值为全0,说明DCI中承载的信息为第一信息;当HARQ进程编号指示域的取值为全0,且冗余版本指示域的取值为00,新传数据指示域的取值为全0,发送功率控制指示域的取值为全0,MCS指示域取值为全1,频域资源分配指示域取值为全1时,说明DCI中承载的信息为第五信息。Exemplarily, Table 2 and Table 3 may also include a newly transmitted data indication field and a transmission power control indication field. In an example, taking DCI format 0_0 as an example, when the value of the HARQ process number indicator field is all 0, the value of the redundancy version indicator field is 00, the value of the newly transmitted data indicator field is all 0, and the transmit power The value of the control indication field is all 0, indicating that the information carried in the DCI is the first information; when the value of the HARQ process number indication field is all 0, and the value of the redundancy version indication field is 00, the newly transmitted data indicates When the value of the field is all 0, the value of the transmit power control indicator field is all 0, the value of the MCS indicator field is all 1, and the value of the frequency domain resource allocation indicator field is all 1, it means that the information carried in the DCI is the first Five information.
再举个例子,也可以通过HARQ进程编号指示域、RV指示域、MCS指示域、频域资源分配指示域、时域资源分配指示域、新传数据指示域、发送功率控制指示域、跳频指示域、新扩展的第一比特域、保留域中的任一个域来承载第一信息或第五信息,比如通过时域资源分配指示域来承载。在一个示例中,以DCI format 0_0为例,当时域资源分配指示域的取值为全0时,说明DCI中承载的信息为第一信息;当时域资源分配指示域的取值为全1时,说明DCI中承载的信息为第五信息。For another example, the HARQ process number indicator field, RV indicator field, MCS indicator field, frequency domain resource allocation indicator field, time domain resource allocation indicator field, newly transmitted data indicator field, transmit power control indicator field, frequency hopping can also be used. Any one of the indication field, the newly extended first bit field, and the reserved field carries the first information or the fifth information, for example, it is carried by the time domain resource allocation indication field. In an example, taking DCI format 0_0 as an example, when the value of the current domain resource allocation indication field is all 0, it means that the information carried in the DCI is the first information; when the value of the current domain resource allocation indication field is all 1 , It is explained that the information carried in the DCI is the fifth information.
需要说明的是,上述仅是示例性地列举了承载第一信息的域和域的取值,以及承载第五信息的域和域的取值,在其它可能的实施例中,还可以有其它情形,不再一一列举。It should be noted that the above is only an exemplary listing of the domain and the value of the domain that carry the first information, and the domain and the value of the domain that carry the fifth information. In other possible embodiments, there may be other The situation will not be listed one by one.
本申请实施例中,考虑到DCI没有HARQ反馈信息,可能会降低信息传递的可靠性,因此,为了提高激活或去激活跨小区PDCCH监控的可靠性,终端设备可以针对承载信息1的DCI生成HARQ反馈信息,用来反馈是否正确接收了该DCI。In the embodiments of this application, considering that DCI does not have HARQ feedback information, the reliability of information transmission may be reduced. Therefore, in order to improve the reliability of activating or deactivating cross-cell PDCCH monitoring, the terminal device can generate HARQ for the DCI carrying information 1. Feedback information is used to feed back whether the DCI is correctly received.
实现方式2:网络设备向终端设备发送MAC CE,MAC CE中包括信息1。Implementation mode 2: The network device sends the MAC CE to the terminal device, and the MAC CE includes information 1.
此处的MAC CE可以为本申请实施例新定义的一个MAC CE,通过新定义的一个MAC  CE来发送信息1,信息扩展较为方便,且对标准的影响较小。The MAC CE here may be a newly defined MAC CE in this embodiment of the application, and information 1 is sent through the newly defined MAC CE, which is convenient for information extension and has less impact on the standard.
示例性地,MAC PDU由一个或多个MAC子PDU(subPDU)组成。每个MAC subPDU包含以下之一:仅MAC子头;MAC子头和MAC SDU;MAC子头和MAC CE;MAC子头和填充。每个MAC子头对应于MAC SDU、MAC CE或填充。在一个示例中,MAC子头由四个头字段R/F/LCID/L组成,该种情形主要是针对于除固定大小的MAC CE、填充和包含上行公共控制信道(uplink common control channel,UL CCCH)的MAC SDU之外的MAC子头;在又一个示例中,MAC子头由两个头字段R/LCID组成,该种情形主要是针对于固定大小的MAC CE、填充和包含UL CCCH的MAC SDU的MAC子头。其中,LCID为逻辑信道ID,表示相应MAC SDU的逻辑信道实例或相应MAC CE或填充的类型,每个MAC子头有一个LCID字段,LCID字段大小为6位;L为长度字段,表示相应MAC SDU或可变大小MAC CE的长度(以字节为单位),除了对应于固定大小的MAC CE、填充和包含UL CCCH的MAC SDU的MAC子头之外,每个MAC子头有一个L字段,L字段的大小由F字段表示;F为格式字段,表示长度字段的大小。除了对应于固定大小的MAC CE,填充和包含UL CCCH的MAC SDU的子头之外,每个MAC子头有一个F字段。F字段的大小是1位,当取值为0时,表示长度字段为8位,当取值为1时,表示长度字段为16位;R为保留位,设置为0。Exemplarily, the MAC PDU is composed of one or more MAC sub-PDUs (subPDU). Each MAC subPDU contains one of the following: MAC subheader only; MAC subheader and MAC SDU; MAC subheader and MAC CE; MAC subheader and padding. Each MAC subheader corresponds to MAC SDU, MAC CE or padding. In an example, the MAC sub-header consists of four header fields R/F/LCID/L. This situation is mainly aimed at the addition of fixed-size MAC CE, padding and inclusion of uplink common control channel (UL CCCH). ) MAC sub-header other than the MAC SDU; in another example, the MAC sub-header consists of two header fields R/LCID. This situation is mainly for fixed-size MAC CE, padding, and MAC SDU containing UL CCCH The MAC sub-header. Among them, LCID is the logical channel ID, which represents the logical channel instance of the corresponding MAC SDU or the corresponding MAC CE or the type of padding. Each MAC subheader has an LCID field, the size of the LCID field is 6 bits; L is the length field, indicating the corresponding MAC The length of the SDU or variable size MAC CE (in bytes), except for the MAC subheader corresponding to the fixed size MAC CE, padding, and MAC SDU containing UL CCCH, each MAC subheader has an L field , The size of the L field is represented by the F field; F is the format field, which represents the size of the length field. Except for the MAC CE corresponding to a fixed size, padding and the subheader of the MAC SDU containing UL CCCH, each MAC subheader has an F field. The size of the F field is 1 bit. When the value is 0, it means that the length field is 8 bits. When the value is 1, it means that the length field is 16 bits. R is a reserved bit and is set to 0.
本申请实施例新定义的MAC CE对应的MAC子头中包括LCID,所述LCID用于指示该MAC CE包括信息1。在一个示例中,LCID的取值可以为33~46中的任一个值,具体不做限定。示例性地,该MAC CE可以作为单独的MAC PDU进行发送,也可以和其他的MAC SDU一起发送,具体不做限定。The MAC subheader corresponding to the MAC CE newly defined in the embodiment of this application includes an LCID, and the LCID is used to indicate that the MAC CE includes information 1. In an example, the value of LCID can be any value from 33 to 46, which is not specifically limited. Exemplarily, the MAC CE can be sent as a separate MAC PDU, or can be sent together with other MAC SDUs, which is not specifically limited.
示例性地,该MAC CE可以为固定长度的MAC CE。如图2所示,以最大可以为终端设备配置31个小区的情况为例,其中,R表示保留比特,Ci表示激活或者去激活第i个小区的跨小区监控PDCCH,比如Ci的取值为1,表示激活第i个小区的跨小区监控PDCCH,Ci的取值为0,表示去激活第i个小区的跨小区监控PDCCH。以C1对应第一小区为例,C1=1,表示激活第一小区的跨小区监控PDCCH(比如可以为激活在第二小区上监控第一小区),C1=0,表示去激活第一小区的跨小区监控PDCCH。需要说明的是,若实际仅有10个小区通过CA的方式为终端设备服务,也就是说C11至C31字段没有配置对应的小区,则终端设备接收到MAC CE后,可忽略C11至C31字段。Exemplarily, the MAC CE may be a fixed length MAC CE. As shown in Figure 2, a case where a maximum of 31 cells can be configured for a terminal device as an example, where R represents reserved bits, and Ci represents the activation or deactivation of the cross-cell monitoring PDCCH of the i-th cell, for example, the value of Ci 1, indicates that the cross-cell monitoring PDCCH of the i-th cell is activated, and the value of Ci is 0, which indicates that the cross-cell monitoring PDCCH of the i-th cell is deactivated. Take C1 corresponding to the first cell as an example, C1=1, which means that the cross-cell monitoring PDCCH of the first cell is activated (for example, it can be activated to monitor the first cell on the second cell), C1=0, which means that the first cell is deactivated Monitor PDCCH across cells. It should be noted that if there are actually only 10 cells serving the terminal device through CA, that is, the C11 to C31 fields are not configured with corresponding cells, the terminal device can ignore the C11 to C31 fields after receiving the MAC CE.
(3)网络设备向终端设备发送信息2,信息2用于指示激活或去激活跨小区监控PDCCH的模式;相应地,终端设备接收网络设备发送的信息2。(3) The network device sends information 2 to the terminal device, and the information 2 is used to indicate the activation or deactivation of the cross-cell monitoring PDCCH mode; correspondingly, the terminal device receives the information 2 sent by the network device.
示例性地,信息2可以和信息1结合使用,信息1指示激活或去激活跨小区监控PDCCH,而信息2进一步指示出激活或去激活跨小区监控PDCCH的具体模式。在一个示例中,信息1可以指示出激活或去激活某一小区的跨小区监控PDCCH,信息2进一步指示网络设备针对该小区配置的一种模式;比如,网络设备针对第一小区配置了第一模式、第二模式和第三模式,则信息1可以指示出第一小区,而信息2可以进一步指示第一模式、第二模式和第三模式中的其中一种模式。在又一个示例中,信息1也可以仅指示激活或去激活跨小区监控PDCCH,而未指示出具体的小区,信息2可以指示网络设备配置的一种模式;比如,网络设备针对多个小区配置了第一模式、第二模式、第三模式、第四模式和第五模式,则信息1可以仅指示激活或去激活跨小区监控PDCCH,而信息2可以进一步指示第 一模式、第二模式、第三模式、第四模式和第五模式中的一种模式。Exemplarily, information 2 can be used in combination with information 1. Information 1 indicates the activation or deactivation of the cross-cell monitoring PDCCH, and information 2 further indicates the specific mode of activating or deactivating the cross-cell monitoring PDCCH. In an example, information 1 may indicate the activation or deactivation of the cross-cell monitoring PDCCH of a certain cell, and information 2 further indicates a mode configured by the network device for the cell; for example, the network device has configured the first cell for the first cell. Mode, second mode and third mode, information 1 may indicate the first cell, and information 2 may further indicate one of the first mode, second mode, and third mode. In another example, message 1 may only indicate the activation or deactivation of the cross-cell monitoring PDCCH without indicating a specific cell, and message 2 may indicate a mode of network device configuration; for example, the network device is configured for multiple cells In the first mode, second mode, third mode, fourth mode, and fifth mode, information 1 can only indicate activation or deactivation of cross-cell monitoring PDCCH, and information 2 can further indicate the first mode, second mode, One of the third, fourth, and fifth modes.
其中,信息2可以包括第二信息或第六信息,第二信息用于指示激活跨小区监控PDCCH的模式,第六信息用于指示去激活跨小区监控PDCCH的模式。比如,若网络设备向终端设备发送的信息1为第一信息,则向终端设备发送的信息2可以为第二信息;若网络设备向终端设备发送的信息1为第五信息,则向终端设备发送的信息2可以为第六信息。需要说明的是,网络设备向终端设备发送信息2为可选步骤,比如若网络设备仅配置了一种跨小区监控PDCCH的模式,则仅发送信息1即可实现激活或去激活该模式,可以不再发送信息2。Wherein, the information 2 may include second information or sixth information, the second information is used to indicate the mode of activating the cross-cell monitoring PDCCH, and the sixth information is used to indicate the mode of deactivating the cross-cell monitoring PDCCH. For example, if the information 1 sent by the network device to the terminal device is the first information, then the information 2 sent to the terminal device can be the second information; if the information 1 sent by the network device to the terminal device is the fifth information, it will be sent to the terminal device. The sent information 2 may be the sixth information. It should be noted that sending information 2 from the network device to the terminal device is an optional step. For example, if the network device is only configured with a cross-cell monitoring PDCCH mode, only sending information 1 can activate or deactivate this mode. No more messages sent 2.
本申请实施例中,网络设备可以通过同一条消息来发送信息1和信息2,或者,也可以通过不同的消息来发送信息1和信息2,具体不做限定。以网络设备通过同一条消息来发送信息1和信息2为例,比如网络设备向终端设备发送DCI,DCI中包括信息1和信息2,示例性地,信息2可以承载在新扩展的第二比特域和/或保留域中;又比如,网络设备向终端设备发送MAC CE,MAC CE中包括信息1和信息2,如图3所示,Ci对应的CRPDlndi表示激活或者去激活第i个小区的跨小区监控PDCCH的模式。示例性地,信息2所占用的比特位数可以根据网络设备配置的跨小区监控PDCCH的模式的个数来确定,比如网络设备为第一小区配置的跨小区监控PDCCH的模式包括第一模式、第二模式和第三模式,则信息2可以占用2个比特,比如当2个比特的取值为00时,指示第一模式,当2个比特的取值为01时,指示第二模式,当2个比特的取值为10时,指示第三模式。举个例子,C1=1,CRPDlnd1=00表示激活第一小区的跨小区监控PDCCH的第一模式。In the embodiment of the present application, the network device may send information 1 and information 2 through the same message, or may also send information 1 and information 2 through different messages, which is not specifically limited. Take the network device sending information 1 and information 2 through the same message as an example. For example, the network device sends DCI to the terminal device. The DCI includes information 1 and information 2. For example, information 2 can be carried in the newly extended second bit. Domain and/or reserved domain; for another example, a network device sends a MAC CE to a terminal device, and the MAC CE includes information 1 and information 2, as shown in Figure 3, the CRPDlndi corresponding to Ci represents the activation or deactivation of the i-th cell The mode of PDCCH monitoring across cells. Exemplarily, the number of bits occupied by information 2 can be determined according to the number of cross-cell monitoring PDCCH modes configured by the network device. For example, the cross-cell monitoring PDCCH mode configured by the network device for the first cell includes the first mode, In the second mode and the third mode, information 2 can occupy 2 bits. For example, when the value of 2 bits is 00, it indicates the first mode, and when the value of 2 bits is 01, it indicates the second mode. When the value of 2 bits is 10, it indicates the third mode. For example, C1=1 and CRPDlnd1=00 indicate that the first mode of cross-cell monitoring PDCCH of the first cell is activated.
(4)网络设备向终端设备发送信息3,信息3用于控制在第一小区上监控PDCCH的周期;相应地,终端设备接收网络设备发送的信息3。(4) The network device sends information 3 to the terminal device, and the information 3 is used to control the period of monitoring the PDCCH on the first cell; accordingly, the terminal device receives the information 3 sent by the network device.
其中,在一个示例中,信息3可以通过指示在第一小区上监控PDCCH的周期或者指示在第一小区上不监控PDCCH来控制在第一小区上监控PDCCH的周期(此时,信息3可以理解为PDCCH监控控制信息)。在又一个示例中,网络设备可以为终端设备配置多个BWP(多个BWP属于同一小区),每个BWP对应一种监控PDCCH的周期,当激活的BWP发生改变(即发生BWP切换)时,监控PDCCH的周期也随之改变;因此,信息3也可以通过指示BWP的切换来控制在第一小区上监控PDCCH的周期(此时,信息3可以理解为BWP指示信息),比如信息3可以指示包括目标BWP的索引信息,比如BWP ID。Among them, in an example, information 3 can control the period of PDCCH monitoring on the first cell by indicating the period of PDCCH monitoring on the first cell or indicating that the PDCCH is not monitored on the first cell (at this time, information 3 can understand Monitoring control information for PDCCH). In another example, the network device can configure multiple BWPs for the terminal device (multiple BWPs belong to the same cell), and each BWP corresponds to a period for monitoring the PDCCH. When the activated BWP changes (that is, a BWP handover occurs), The period of monitoring the PDCCH also changes accordingly; therefore, the information 3 can also control the period of monitoring the PDCCH on the first cell by indicating BWP switching (in this case, the information 3 can be understood as the BWP indication information), for example, the information 3 can indicate Includes index information of the target BWP, such as BWP ID.
示例性地,信息3可以包括第三信息或第四信息,比如网络设备为终端设备配置了在第一小区上监控第一小区的PDCCH的两种周期,比如第一种周期为2个时隙,第二种周期为6个时隙。第三信息可以用于指示在第一小区上不监控第一小区的PDCCH,或者,第三信息可以用于指示在第一小区上监控第一小区的PDCCH的周期(比如为6个时隙);第四信息可以用于指示在第一小区上监控第一小区的PDCCH的周期(比如为2个时隙)。第三信息和第四信息可以由同一个信息域来承载,比如该信息域可以包括两个比特,00表示不监控PDCCH,01表示监控周期为第一周期,如2时隙,10表示监控周期为第二周期,如6时隙。也就是说,网络设备可以预先配置多种监控周期,进而通过向终端设备发送信息3来选择性指示相应的监控周期。比如,当终端设备在第一小区上监控第一小区的PDCCH的周期为2个时隙(将该种状态理解为正常状态)时,若网络设备确定需要节省终端设备的功耗时,可以向终端设备发送第三信息(此时信息域的取值可以为10或00), 以便于终端设备进入节能状态;当终端设备在第一小区上不监控第一小区的PDCCH,或者,终端设备在第一小区上监控第一小区的PDCCH的周期为6个时隙(将该种状态理解为节能状态)时,网络设备可以向终端设备发送第四信息(此时信息域的取值为01),以便于终端设备进入正常状态。Exemplarily, the information 3 may include the third information or the fourth information. For example, the network device configures the terminal device with two periods for monitoring the PDCCH of the first cell on the first cell. For example, the first period is 2 time slots. , The second cycle is 6 time slots. The third information may be used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third information may be used to indicate the period of monitoring the PDCCH of the first cell on the first cell (for example, 6 time slots) ; The fourth information may be used to indicate the period of monitoring the PDCCH of the first cell on the first cell (for example, 2 time slots). The third information and the fourth information can be carried by the same information field. For example, the information field can include two bits. 00 indicates that PDCCH is not monitored, 01 indicates that the monitoring period is the first period, such as 2 time slots, and 10 indicates the monitoring period. This is the second cycle, such as 6 time slots. In other words, the network device can pre-configure multiple monitoring periods, and then send information 3 to the terminal device to selectively indicate the corresponding monitoring period. For example, when the period for the terminal equipment to monitor the PDCCH of the first cell on the first cell is 2 time slots (this state is understood as a normal state), if the network equipment determines that it needs to save the power consumption of the terminal equipment, it can The terminal device sends the third information (the value of the information field can be 10 or 00 at this time), so that the terminal device enters the energy-saving state; when the terminal device does not monitor the PDCCH of the first cell on the first cell, or the terminal device is on When the period of monitoring the PDCCH of the first cell on the first cell is 6 time slots (this state is understood as an energy-saving state), the network device can send the fourth information to the terminal device (the value of the information field is 01 at this time) , So that the terminal equipment enters the normal state.
本申请实施例中,第三信息用于指示在第一小区上不监控第一小区的PDCCH,也可以描述为,第三信息用于指示关闭在第一小区上对第一小区的PDCCH的监控,或者第三信息用于指示在第一小区上忽略第一小区的PDCCH,又或者其它可能的描述,具体不做限定。In the embodiment of this application, the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell. It can also be described as the third information is used to indicate that the monitoring of the PDCCH of the first cell on the first cell is turned off , Or the third information is used to indicate that the PDCCH of the first cell is ignored on the first cell, or other possible descriptions are not specifically limited.
示例性地,网络设备可以通过DCI发送信息3,此种情形下,承载信息3的DCI和承载信息1(和信息2)的DCI可以为同一DCI,或者,也可以为不同DCI,具体不做限定。当承载信息3的DCI和承载信息1的DCI可以为同一DCI时,该DCI中可以包括第一信息和第三信息,或者包括第五信息和第四信息。Exemplarily, the network device can send information 3 through DCI. In this case, the DCI carrying information 3 and the DCI carrying information 1 (and information 2) can be the same DCI, or they can be different DCIs. limited. When the DCI carrying information 3 and the DCI carrying information 1 may be the same DCI, the DCI may include the first information and the third information, or include the fifth information and the fourth information.
需要说明的是,为了不增加终端设备的盲检次数,用于承载信息1(和信息2、信息3)的DCI format的大小要与原DCI format的大小进行对齐,比如当使用DCI format 1_0发送信息1时,该DCI format 1_0的大小要与用于调度下行数据的DCI format 1_0的大小一致。It should be noted that, in order not to increase the number of blind checks of the terminal device, the size of the DCI format used to carry information 1 (and information 2, information 3) should be aligned with the size of the original DCI format, for example, when using DCI format 1_0 to send For information 1, the size of the DCI format 1_0 must be the same as the size of the DCI format 1_0 used for scheduling downlink data.
基于上述对相关技术特征的介绍,下面结合实施例一和实施例二对本申请实施例提供的通信方法的实现流程进行描述。Based on the foregoing introduction to related technical features, the implementation process of the communication method provided by the embodiment of the present application will be described below in conjunction with Embodiment 1 and Embodiment 2.
实施例一Example one
图4为本申请实施例一提供的通信方法所对应的流程示意图,如图4所示,该方法包括:FIG. 4 is a schematic diagram of the process corresponding to the communication method provided in Embodiment 1 of the application. As shown in FIG. 4, the method includes:
步骤401,网络设备向终端设备配置信息1,配置信息1用于指示跨小区监控PDCCH的第一模式、第二模式和第三模式,第一模式包括在第二小区上监控第一小区的PDCCH,第二模式包括在第三小区上监控第一小区的PDCCH,第三模式包括在第四小区上监控第一小区的PDCCH。Step 401: The network device configures information 1 to the terminal device. The configuration information 1 is used to indicate the first mode, the second mode, and the third mode of monitoring PDCCH across cells. The first mode includes monitoring the PDCCH of the first cell on the second cell. , The second mode includes monitoring the PDCCH of the first cell on the third cell, and the third mode includes monitoring the PDCCH of the first cell on the fourth cell.
相应地,在步骤402中,终端设备接收网络设备发送的配置信息1。Correspondingly, in step 402, the terminal device receives the configuration information 1 sent by the network device.
假设网络设备预先为终端设备配置了在第一小区上监控第一小区的PDCCH的两种周期,比如第一种周期为2个时隙,第二种周期为6个时隙。当终端设备在第一小区上监控第一小区的PDCCH的周期为2个时隙时,可以执行步骤403。It is assumed that the network device has previously configured for the terminal device two periods for monitoring the PDCCH of the first cell on the first cell, for example, the first period is 2 time slots, and the second period is 6 time slots. When the period for the terminal device to monitor the PDCCH of the first cell on the first cell is 2 time slots, step 403 may be performed.
步骤403,网络设备向终端设备发送控制信息-1a,控制信息-1a中包括第一信息、第二信息和第三信息,其中,第一信息用于指示激活跨小区监控PDCCH,第二信息用于指示第一模式,第三信息用于指示在第一小区上不监控第一小区的PDCCH。示例性地,控制信息-1a可以为网络设备在第一小区上发送的DCI。Step 403: The network device sends control information-1a to the terminal device. The control information-1a includes first information, second information, and third information. The first information is used to indicate the activation of the cross-cell monitoring PDCCH, and the second information is used for To indicate the first mode, the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell. Exemplarily, the control information-1a may be DCI sent by the network device on the first cell.
相应地,在步骤404中,终端设备接收网络设备发送的控制信息-1a,并根据控制信息-1a在第二小区上监控第一小区的PDCCH,以及在第一小区上不再监控第一小区的PDCCH。Correspondingly, in step 404, the terminal device receives the control information-1a sent by the network device, and monitors the PDCCH of the first cell on the second cell according to the control information-1a, and no longer monitors the first cell on the first cell PDCCH.
步骤405,网络设备向终端设备发送控制信息-1b,控制信息-1b中包括第四信息、第五信息和第六信息,其中,第四信息用于指示在第一小区上监控第一小区的PDCCH的周期为2个时隙,第五信息用于指示去激活跨小区监控PDCCH,第六信息用于指示第一模式。示例性地,控制信息-1b可以为网络设备在第二小区上发送的DCI。Step 405: The network device sends control information-1b to the terminal device. The control information-1b includes fourth information, fifth information, and sixth information, where the fourth information is used to indicate the monitoring of the first cell on the first cell. The period of the PDCCH is 2 time slots, the fifth information is used to indicate the deactivation of the cross-cell monitoring PDCCH, and the sixth information is used to indicate the first mode. Exemplarily, the control information-1b may be DCI sent by the network device on the second cell.
相应地,在步骤406中,终端设备接收网络设备发送的控制信息-1b,并根据控制信息 -1b恢复在第一小区上监控第一小区的PDCCH,而不再在第二小区上监控第一小区的PDCCH。Correspondingly, in step 406, the terminal device receives the control information-1b sent by the network device, and resumes monitoring the PDCCH of the first cell on the first cell according to the control information-1b, and no longer monitors the first cell on the second cell. PDCCH of the cell.
需要说明的是,通常情况下,一个小区只有一个调度小区,即一个小区只能被另一个小区调度,而不能被多个小区调度。因此,控制信息-1b中也可以不包括第六信息,终端设备根据第五信息即可获知去激活第一模式。It should be noted that under normal circumstances, a cell has only one scheduling cell, that is, a cell can only be scheduled by another cell, but cannot be scheduled by multiple cells. Therefore, the sixth information may not be included in the control information-1b, and the terminal device can learn to deactivate the first mode according to the fifth information.
实施例二Example two
图5为本申请实施例二提供的通信方法所对应的流程示意图,如图5所示,该方法包括:Fig. 5 is a schematic diagram of a process corresponding to the communication method provided in the second embodiment of the application. As shown in Fig. 5, the method includes:
步骤501,网络设备向终端设备配置信息1,配置信息1用于指示跨小区监控PDCCH的第一模式、第二模式和第三模式,第一模式包括在第二小区上监控第一小区的PDCCH,第二模式包括在第三小区上监控第一小区的PDCCH,第三模式包括在第四小区上监控第一小区的PDCCH。Step 501: The network device configures information 1 to the terminal device. The configuration information 1 is used to indicate the first mode, the second mode, and the third mode of PDCCH monitoring across cells. The first mode includes monitoring the PDCCH of the first cell on the second cell. , The second mode includes monitoring the PDCCH of the first cell on the third cell, and the third mode includes monitoring the PDCCH of the first cell on the fourth cell.
相应地,在步骤502中,终端设备接收网络设备发送的配置信息1。Correspondingly, in step 502, the terminal device receives the configuration information 1 sent by the network device.
假设网络设备预先为终端设备配置了在第一小区上监控第一小区的PDCCH的两种周期,比如第一种周期为2个时隙,第二种周期为6个时隙。当终端设备在第一小区上监控第一小区的PDCCH的周期为2个时隙时,可以执行步骤503。It is assumed that the network device has previously configured for the terminal device two periods for monitoring the PDCCH of the first cell on the first cell, for example, the first period is 2 time slots, and the second period is 6 time slots. When the period for the terminal device to monitor the PDCCH of the first cell on the first cell is 2 time slots, step 503 may be performed.
步骤503,网络设备向终端设备发送控制信息-2a,控制信息-2a中包括第一信息和第二信息,其中,第一信息用于指示激活跨小区监控PDCCH,第二信息用于指示第一模式。此处,控制信息-2a可以为在第一小区上发送的DCI或者也可以为MAC CE。Step 503: The network device sends control information-2a to the terminal device. The control information-2a includes first information and second information, where the first information is used to indicate the activation of the cross-cell monitoring PDCCH, and the second information is used to indicate the first mode. Here, the control information-2a may be DCI sent on the first cell or may also be MAC CE.
相应地,在步骤504中,终端设备接收控制信息-2a,并在第一小区和第二小区上监控第一小区的PDCCH。Correspondingly, in step 504, the terminal device receives the control information-2a, and monitors the PDCCH of the first cell on the first cell and the second cell.
步骤505,网络设备向终端设备发送控制信息-2b,控制信息-2b中包括第三信息,第三信息用于指示在第一小区上不监控第一小区的PDCCH。此处,控制信息-2b可以为网络设备在第一小区上或在第二小区上发送的DCI。Step 505: The network device sends control information-2b to the terminal device. The control information-2b includes third information, and the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell. Here, the control information-2b may be DCI sent by the network device on the first cell or on the second cell.
相应地,在步骤506中,终端设备接收网络设备发送的控制信息-2b,并根据控制信息-2b不再在第一小区上监控第一小区的PDCCH,而仅在第二小区上监控第一小区的PDCCH。Correspondingly, in step 506, the terminal device receives the control information-2b sent by the network device, and no longer monitors the PDCCH of the first cell on the first cell according to the control information-2b, but only monitors the first cell on the second cell. PDCCH of the cell.
步骤507,网络设备向终端设备发送控制信息-2c,控制信息-2c中包括第四信息,第四信息用于指示在第一小区上监控第一小区的PDCCH的周期(比如为6个时隙)。此处,控制信息-2c可以为网络设备在第二小区上发送的DCI。Step 507: The network device sends control information-2c to the terminal device. The control information-2c includes fourth information. The fourth information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell (for example, 6 time slots). ). Here, the control information-2c may be the DCI sent by the network device on the second cell.
相应地,在步骤508中,终端设备接收网络设备发送的控制信息-2c,并恢复在第一小区上监控第一小区的PDCCH,此时还在第二小区上监控第一小区的PDCCH。Correspondingly, in step 508, the terminal device receives the control information-2c sent by the network device, and resumes monitoring the PDCCH of the first cell on the first cell, and at this time also monitors the PDCCH of the first cell on the second cell.
步骤509,网络设备向终端设备发送控制信息-2d,控制信息-2d中包括第五信息,其中,第五信息用于指示去激活跨小区监控PDCCH。此处,控制信息-2d可以为网络设备在第一小区或第二小区上发送的DCI。Step 509: The network device sends control information-2d to the terminal device. The control information-2d includes fifth information, where the fifth information is used to indicate deactivation of the cross-cell monitoring PDCCH. Here, the control information-2d may be the DCI sent by the network device on the first cell or the second cell.
相应地,在步骤510中,终端设备接收网络设备发送的控制信息-2d,并根据控制信息-2d去激活跨小区监控PDCCH,即不再在第二小区上监控第一小区的PDCCH,此时仅在第一小区上监控第一小区的PDCCH。Correspondingly, in step 510, the terminal device receives the control information-2d sent by the network device, and deactivates the cross-cell monitoring PDCCH according to the control information-2d, that is, no longer monitors the PDCCH of the first cell on the second cell. Monitor the PDCCH of the first cell only on the first cell.
需要说明的是:(1)上述图4或图5中的步骤编号仅为执行流程的一种示例,并不构 成对步骤执行的先后顺序的限制,本申请实施例中相互之间没有时序依赖关系的步骤之间没有严格的执行顺序。(2)上述实施例一和实施例二仅是基于前文所介绍的技术特征描述了两种可能的交互流程,各个步骤的具体实现均可以参照前文所介绍的技术特征。上述实施例一中,主要描述了通过一条消息来发送第一信息、第二信息和第三信息,以及通过一条消息来发送第四信息、第五信息和第六信息的情形;上述实施例二中主要描述了通过不同的消息来发送第一信息、第二信息和第三信息,以及通过不同的消息来发送第四信息、第五信息和第六信息的情形。It should be noted that: (1) The step numbers in Figure 4 or Figure 5 above are only an example of the execution process, and do not constitute a restriction on the order of execution of the steps. There is no time sequence dependency among the embodiments of this application. There is no strict execution order between the steps of the relationship. (2) The first and second embodiments described above only describe two possible interaction processes based on the technical features introduced above, and the specific implementation of each step can refer to the technical features introduced above. In the first embodiment above, it is mainly described that the first information, the second information, and the third information are sent through one message, and the fourth information, the fifth information, and the sixth information are sent through one message; the above embodiment two Mainly describes the situation of sending the first, second, and third information through different messages, and sending the fourth, fifth, and sixth information through different messages.
上述主要从网络设备和终端设备之间交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是,为了实现上述功能,网络设备或终端设备可以包括执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,本申请的实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between network devices and terminal devices. It can be understood that, in order to implement the above-mentioned functions, the network device or the terminal device may include corresponding hardware structures and/or software modules for performing various functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
在采用集成的单元(模块)的情况下,图6示出了本申请实施例中所涉及的装置的可能的示例性框图,该装置600可以以软件的形式存在。装置600可以包括:处理单元602和通信单元603。处理单元602用于对装置600的动作进行控制管理。通信单元603用于支持装置600与其他网络实体的通信。可选地,通信单元603也称为收发单元,可以包括接收单元和/或发送单元,分别用于执行接收和发送操作。装置600还可以包括存储单元601,用于存储装置600的程序代码和/或数据。In the case of using an integrated unit (module), FIG. 6 shows a possible exemplary block diagram of a device involved in an embodiment of the present application, and the device 600 may exist in the form of software. The apparatus 600 may include: a processing unit 602 and a communication unit 603. The processing unit 602 is used to control and manage the actions of the device 600. The communication unit 603 is used to support communication between the device 600 and other network entities. Optionally, the communication unit 603 is also referred to as a transceiving unit, and may include a receiving unit and/or a sending unit, which are used to perform receiving and sending operations, respectively. The device 600 may further include a storage unit 601 for storing program codes and/or data of the device 600.
其中,处理单元602可以是处理器或控制器,其可以实现或执行结合本申请的实施例公开内容所描述的各种示例性的逻辑方框,模块和电路。通信单元603可以是通信接口、收发器或收发电路等,其中,该通信接口是统称,在具体实现中,该通信接口可以包括多个接口。存储单元601可以是存储器。The processing unit 602 may be a processor or a controller, which may implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present application. The communication unit 603 may be a communication interface, a transceiver, or a transceiver circuit, etc., where the communication interface is a general term. In a specific implementation, the communication interface may include multiple interfaces. The storage unit 601 may be a memory.
该装置600可以为上述任一实施例中的终端设备、或者还可以为设置在终端设备中的芯片。处理单元602可以支持装置600执行上文中各方法示例中终端设备的动作。或者,处理单元602主要执行方法示例中的终端设备的内部动作,通信单元603可以支持装置600与网络设备之间的通信。例如,通信单元602用于执行图4中的步骤402、步骤404、步骤406,以及图5中的步骤502、步骤504、步骤506、步骤508、步骤510。The apparatus 600 may be the terminal device in any of the above embodiments, or may also be a chip provided in the terminal device. The processing unit 602 may support the apparatus 600 to perform the actions of the terminal device in the foregoing method examples. Alternatively, the processing unit 602 mainly executes the internal actions of the terminal device in the method example, and the communication unit 603 can support communication between the apparatus 600 and the network device. For example, the communication unit 602 is configured to execute step 402, step 404, and step 406 in FIG. 4, and step 502, step 504, step 506, step 508, and step 510 in FIG.
具体地,在一个实施例中,通信单元603用于接收网络设备发送的配置信息,所述配置信息用于指示跨小区监控控制信道的至少一种模式,所述至少一种模式中包括第一模式,所述第一模式包括在所述第二小区上监控所述第一小区的控制信道;以及,接收所述网络设备发送的第一信息,所述第一信息用于指示跨小区监控控制信道;Specifically, in one embodiment, the communication unit 603 is configured to receive configuration information sent by a network device, where the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, and the at least one mode includes the first mode. Mode, the first mode includes monitoring the control channel of the first cell on the second cell; and receiving first information sent by the network device, the first information being used to indicate cross-cell monitoring and control channel;
处理单元602用于所述第二小区上监控所述第一小区的控制信道。The processing unit 602 is configured to monitor the control channel of the first cell on the second cell.
在一种可能的设计中,所述至少一种模式包括两种或两种以上模式;通信单元603还用于:接收所述网络设备发送的第二信息,所述第二信息用于指示跨小区监控控制信道的模式为所述第一模式。In a possible design, the at least one mode includes two or more modes; the communication unit 603 is further configured to: receive second information sent by the network device, and the second information is used to indicate The mode of the cell monitoring control channel is the first mode.
在一种可能的设计中,通信单元603具体用于:接收所述网络设备发送的下行控制信息DCI,所述DCI包括所述第一信息和/或所述第二信息。In a possible design, the communication unit 603 is specifically configured to: receive downlink control information DCI sent by the network device, where the DCI includes the first information and/or the second information.
在一种可能的设计中,所述DCI中的以下一个或多个域用于承载所述第一信息:混合自动重传请求HARQ进程编号指示域、冗余版本RV指示域、调制和编码方式指示域、频域资源指示域、时域资源分配指示域、新传数据指示域、发送功率指示域、跳频指示域、保留域。In a possible design, one or more of the following fields in the DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and coding mode Indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
在一种可能的设计中,所述DCI还包括第三信息;其中,所述第三信息用于指示在所述第一小区上不监控所述第一小区的PDCCH,或者,所述第三信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。In a possible design, the DCI further includes third information; wherein the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third The information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
在一种可能的设计中,通信单元603具体用于:接收所述网络设备发送的MAC CE,所述MAC CE包括所述第一信息和/或第二信息。In a possible design, the communication unit 603 is specifically configured to receive a MAC CE sent by the network device, where the MAC CE includes the first information and/or the second information.
在一种可能的设计中,所述MAC CE对应的MAC子头中包括逻辑信道标识符LCID,所述LCID用于指示所述MAC CE包括所述第一信息和/或所述第二信息。In a possible design, the MAC subheader corresponding to the MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information.
在一种可能的设计中,处理单元602具体用于:在所述第二小区的激活的带宽部分BWP上监控所述第一小区的BWP的控制信道。In a possible design, the processing unit 602 is specifically configured to monitor the control channel of the BWP of the first cell on the activated bandwidth part BWP of the second cell.
该装置600还可以为上述任一实施例中的网络设备、或者还可以为设置在网络设备中的芯片。处理单元602可以支持装置600执行上文中各方法示例中网络设备的动作。或者,处理单元602主要执行方法示例中的网络设备的内部动作,通信单元603可以支持装置600与终端设备之间的通信。例如,例如,通信单元603用于执行图4中的步骤401、步骤403、步骤405,以及图5中的步骤501、步骤503、步骤505、步骤507、步骤509。The apparatus 600 may also be the network device in any of the above embodiments, or may also be a chip set in the network device. The processing unit 602 may support the apparatus 600 to execute the actions of the network device in the above method examples. Alternatively, the processing unit 602 mainly executes the internal actions of the network device in the method example, and the communication unit 603 can support communication between the apparatus 600 and the terminal device. For example, for example, the communication unit 603 is configured to perform step 401, step 403, and step 405 in FIG. 4, and step 501, step 503, step 505, step 507, and step 509 in FIG.
具体地,在一个实施例中,通信单元603用于:向终端设备发送配置信息,所述配置信息用于指示跨小区监控控制信道的至少一种模式,所述至少一种模式中包括第一模式,所述第一模式包括在所述第二小区上监控所述第一小区的控制信道;以及,向所述终端设备发送第一信息,所述第一信息用于指示跨小区监控控制信道。Specifically, in one embodiment, the communication unit 603 is configured to send configuration information to the terminal device, the configuration information is used to indicate at least one mode of the cross-cell monitoring control channel, and the at least one mode includes the first mode. Mode, the first mode includes monitoring the control channel of the first cell on the second cell; and sending first information to the terminal device, the first information being used to indicate the cross-cell monitoring control channel .
在一种可能的设计中,所述至少一种模式包括两种或两种以上模式;通信单元602还用于:向所述终端设备发送第二信息,所述第二信息用于指示跨小区监控控制信道的模式为所述第一模式。In a possible design, the at least one mode includes two or more than two modes; the communication unit 602 is further configured to: send second information to the terminal device, where the second information is used to indicate cross-cell The mode of monitoring the control channel is the first mode.
在一种可能的设计中,通信单元603具体用于:向所述终端设备发送下行控制信息DCI,所述DCI包括所述第一信息和/或所述第二信息。In a possible design, the communication unit 603 is specifically configured to send downlink control information DCI to the terminal device, where the DCI includes the first information and/or the second information.
在一种可能的设计中,所述DCI中的以下一个或多个域用于承载所述第一信息:混合自动重传请求HARQ进程编号指示域、冗余版本RV指示域、调制和编码方式指示域、频域资源指示域、时域资源分配指示域、新传数据指示域、发送功率指示域、跳频指示域、保留域。In a possible design, one or more of the following fields in the DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and coding mode Indication domain, frequency domain resource indication domain, time domain resource allocation indication domain, newly transmitted data indication domain, transmission power indication domain, frequency hopping indication domain, reserved domain.
在一种可能的设计中,所述DCI还包括第三信息;其中,所述第三信息用于指示在所述第一小区上不监控所述第一小区的PDCCH,或者,所述第三信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。In a possible design, the DCI further includes third information; wherein the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third The information is used to indicate the period of monitoring the PDCCH of the first cell on the first cell.
在一种可能的设计中,通信单元603具体用于:向所述终端设备媒体接入控制单元MAC CE,所述MAC CE包括所述第一信息和/或第二信息。In a possible design, the communication unit 603 is specifically configured to: MAC CE to the terminal device media access control unit, where the MAC CE includes the first information and/or the second information.
在一种可能的设计中,所述MAC CE对应的MAC子头中包括逻辑信道标识符LCID,所述LCID用于指示所述MAC CE包括所述第一信息和/或所述第二信息。In a possible design, the MAC subheader corresponding to the MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the second information.
需要说明的是,本申请实施例中对单元(模块)的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。在本申请的实施例中的各功能模块可以集 成在一个处理模块中,也可以是各个模块单独物理存在,也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。It should be noted that the division of units (modules) in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质可以为存储器等各种可以存储程序代码的介质。If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application essentially or the part that contributes to the prior art or all or part of the technical solutions can be embodied in the form of software products, and the computer software products are stored in a storage The medium includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium may be various mediums capable of storing program codes, such as a memory.
图7给出了一种装置的结构示意图,该装置700包括处理器710、存储器720和收发器730。在一个示例中,该装置700可以实现图6所示意出的装置600的功能,具体来说,图6中所示意的通信单元603的功能可以由收发器实现,处理单元602的功能可由处理器实现,存储单元601的功能可以由存储器实现。在又一个示例中,该装置700可以是上述方法实施例中的终端设备,该装置700可用于实现上述方法实施例中描述的对应于终端设备的方法,具体可以参见上述方法实施例中的说明。FIG. 7 shows a schematic structural diagram of an apparatus. The apparatus 700 includes a processor 710, a memory 720, and a transceiver 730. In an example, the apparatus 700 can implement the functions of the apparatus 600 illustrated in FIG. 6. Specifically, the functions of the communication unit 603 illustrated in FIG. 6 may be implemented by a transceiver, and the functions of the processing unit 602 may be implemented by a processor. Implementation, the function of the storage unit 601 can be implemented by a memory. In another example, the apparatus 700 may be the terminal device in the above method embodiment, and the apparatus 700 may be used to implement the method corresponding to the terminal device described in the above method embodiment. For details, please refer to the description in the above method embodiment. .
图8为本申请实施例提供的一种终端设备800的结构示意图。为了便于说明,图8仅示出了终端设备的主要部件。如图8所示,终端设备800包括处理器801、存储器802、控制电路803、天线804以及输入输出装置805。该终端设备800可应用于如图1a所示的***架构中,执行上述方法实施例中终端设备的功能。FIG. 8 is a schematic structural diagram of a terminal device 800 provided by an embodiment of this application. For ease of description, FIG. 8 only shows the main components of the terminal device. As shown in FIG. 8, the terminal device 800 includes a processor 801, a memory 802, a control circuit 803, an antenna 804, and an input and output device 805. The terminal device 800 can be applied to the system architecture shown in FIG. 1a to perform the functions of the terminal device in the foregoing method embodiment.
处理器801主要用于对通信协议以及通信数据进行处理,以及对整个终端设备进行控制,执行软件程序,处理软件程序的数据,例如用于控制终端设备执行上述方法实施例中所描述的动作。存储器802主要用于存储软件程序和数据。控制电路803主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路803和天线804一起也可以叫做收发器,主要用于收发电磁波形式的射频信号。输入输出装置805,例如触摸屏、显示屏,键盘等主要用于接收用户输入的数据以及对用户输出数据。The processor 801 is mainly used to process communication protocols and communication data, control the entire terminal device, execute software programs, and process data of the software programs, for example, to control the terminal device to perform the actions described in the foregoing method embodiments. The memory 802 is mainly used to store software programs and data. The control circuit 803 is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals. The control circuit 803 and the antenna 804 together can also be called a transceiver, which is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. The input and output device 805, such as a touch screen, a display screen, a keyboard, etc., is mainly used to receive data input by the user and output data to the user.
当终端设备开机后,处理器801可以读取存储器802中的软件程序,解释并执行软件程序的指令,处理软件程序的数据。当需要通过无线发送数据时,处理器801对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线804以电磁波的形式向外发送。当有数据发送到终端设备时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器801,处理器801将基带信号转换为数据并对该数据进行处理。After the terminal device is turned on, the processor 801 can read the software program in the memory 802, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 801 performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna 804. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 801. The processor 801 converts the baseband signal into data and performs processing on the data. deal with.
本领域技术人员可以理解,为了便于说明,图8仅示出了一个存储器802和处理器801。在实际的终端设备中,可以存在多个处理器801和存储器802。存储器802也可以称为存储介质或者存储设备等,本申请实施例对此不做限制。Those skilled in the art can understand that, for ease of description, FIG. 8 only shows a memory 802 and a processor 801. In an actual terminal device, there may be multiple processors 801 and memories 802. The memory 802 may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.
作为一种可选的实现方式,处理器801可以包括基带处理器和中央处理器,基带处理器主要用于对通信协议以及通信数据进行处理,中央处理器主要用于对整个终端设备进行控制,执行软件程序,处理软件程序的数据。图8中的处理器801集成了基带处理器和中央处理器的功能,本领域技术人员可以理解,基带处理器和中央处理器也可以是各自独立的处理器,通过总线等技术互联。本领域技术人员可以理解,终端设备可以包括多个基带 处理器以适应不同的网络制式,终端设备可以包括多个中央处理器以增强其处理能力,终端设备的各个部件可以通过各种总线连接。该基带处理器也可以表述为基带处理电路或者基带处理芯片。该中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器801中,也可以以软件程序的形式存储在存储器802中,由处理器801执行软件程序以实现基带处理功能。As an optional implementation, the processor 801 may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal device. Execute the software program and process the data of the software program. The processor 801 in FIG. 8 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected by technologies such as a bus. Those skilled in the art can understand that the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor 801, or may be stored in the memory 802 in the form of a software program, and the processor 801 executes the software program to realize the baseband processing function.
图8所示的终端设备800能够实现图4和图5所示意的方法实施例中涉及终端设备的各个过程。终端设备800中的各个模块的操作和/或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详述描述。The terminal device 800 shown in FIG. 8 can implement various processes involving the terminal device in the method embodiments illustrated in FIG. 4 and FIG. 5. The operations and/or functions of each module in the terminal device 800 are respectively for implementing the corresponding processes in the foregoing method embodiments. For details, please refer to the descriptions in the above method embodiments. To avoid repetition, detailed descriptions are appropriately omitted here.
图9为本申请实施例提供的一种网络设备900的结构示意图。如图9所示,网络设备900包括一个或多个射频单元,如远端射频单元(remote radio unit,RRU)910和一个或多个基带单元(baseband unit,BBU)(也可称为数字单元,digital unit,DU)920。所述RRU 910可以称为通信单元,与图6中的通信单元603对应,可选地,该通信单元还可以称为收发机、收发电路、或者收发器等等,其可以包括至少一个天线911和射频单元912。所述RRU 910部分主要用于射频信号的收发以及射频信号与基带信号的转换,例如用于向终端设备发送指示信息。所述BBU 910部分主要用于进行基带处理,对基站进行控制等。所述RRU 910与BBU 920可以是物理上设置在一起,也可以物理上分离设置的,即分布式基站。FIG. 9 is a schematic structural diagram of a network device 900 provided by an embodiment of this application. As shown in FIG. 9, the network device 900 includes one or more radio frequency units, such as a remote radio unit (RRU) 910 and one or more baseband units (BBU) (also called digital units). ,Digital unit,DU)920. The RRU 910 may be called a communication unit, which corresponds to the communication unit 603 in FIG. 6. Optionally, the communication unit may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 911和RF unit 912. The RRU 910 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment. The 910 part of the BBU is mainly used for baseband processing and control of the base station. The RRU 910 and the BBU 920 may be physically set together, or may be physically separated, that is, a distributed base station.
所述BBU 920为基站的控制中心,也可以称为处理模块,可以与图6中的处理单元602对应,主要用于完成基带处理功能,如信道编码,复用,调制,扩频等等。例如所述BBU(处理模块)可以用于控制基站执行上述方法实施例中关于网络设备的操作流程,例如,生成上述指示信息等。The BBU 920 is the control center of the base station, and may also be called a processing module, which may correspond to the processing unit 602 in FIG. 6, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading. For example, the BBU (processing module) may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
在一个示例中,所述BBU 920可以由一个或多个单板构成,多个单板可以共同支持单一接入制式的无线接入网(如LTE网),也可以分别支持不同接入制式的无线接入网(如LTE网,5G网或其他网)。所述BBU 920还包括存储器921和处理器922。所述存储器921用以存储必要的指令和数据。所述处理器922用于控制基站进行必要的动作,例如用于控制基站执行上述方法实施例中关于网络设备的操作流程。所述存储器921和处理器922可以服务于一个或多个单板。也就是说,可以每个单板上单独设置存储器和处理器。也可以是多个单板共用相同的存储器和处理器。此外每个单板上还可以设置有必要的电路。In an example, the BBU 920 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an LTE network) of a single access standard, or support different access standards. Wireless access network (such as LTE network, 5G network or other networks). The BBU 920 further includes a memory 921 and a processor 922. The memory 921 is used to store necessary instructions and data. The processor 922 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment. The memory 921 and the processor 922 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
图9所示的网络设备900能够实现图4和图5所示意的方法实施例中涉及网络设备的各个过程。网络设备800中的各个模块的操作和/或功能,分别为了实现上述方法实施例中的相应流程。具体可参见上述方法实施例中的描述,为避免重复,此处适当省略详述描述。The network device 900 shown in FIG. 9 can implement various processes involving the network device in the method embodiments shown in FIG. 4 and FIG. 5. The operations and/or functions of each module in the network device 800 are respectively for implementing the corresponding processes in the foregoing method embodiments. For details, please refer to the descriptions in the above method embodiments. To avoid repetition, detailed descriptions are appropriately omitted here.
在实现过程中,本实施例提供的方法中的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。In the implementation process, each step in the method provided in this embodiment can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
应注意,本申请实施例中的处理器可以是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用中央处理器(central processing unit,CPU),通用处理器,数字信号处理(digital signal processing,DSP),专用集成电路(application specific integrated circuits,ASIC),现场可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合;也可以是实现计算功能的组合,例如包括一个或多个微处理器组合,DSP和微处理器的组合等等。通用处 理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The aforementioned processor may be a general-purpose central processing unit (central processing unit, CPU), general-purpose processor, digital signal processing (digital signal processing, DSP), application specific integrated circuits (ASIC), field programmable gate array Field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof; it can also be a combination that implements computing functions, such as a combination of one or more microprocessors, DSP and micro-processing The combination of the device and so on. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
可以理解,本申请实施例中的存储器或存储单元可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。应注意,本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that the memory or storage unit in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时,全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中,或者通过所述计算机可读存储介质进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器等数据存储设备。所述可用介质可以是磁性介质,例如,软盘、硬盘、磁带;也可以是光介质,例如,DVD;还可以是半导体介质,例如,固态硬盘(solid state disk,SSD)。In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on the computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted through the computer-readable storage medium. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server integrating one or more available media. The usable medium may be a magnetic medium, such as a floppy disk, a hard disk, and a magnetic tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state disk (SSD).
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器,数字信号处理器,专用集成电路(ASIC),现场可编程门阵列(FPGA)或其它可编程逻辑装置,离散门或晶体管逻辑,离散硬件部件,或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器,可选地,该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现,例如数字信号处理器和微处理器,多个微处理器,一个或多个微处理器联合一个数字信号处理器核,或任何其它类似的配置来实现。The various illustrative logic units and circuits described in the embodiments of this application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, Discrete gates or transistor logic, discrete hardware components, or any combination of the above are designed to implement or operate the described functions. The general-purpose processor may be a microprocessor, and optionally, the general-purpose processor may also be any traditional processor, controller, microcontroller, or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration achieve.
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的软件单元、或者这两者的结合。软件单元可以存储于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介中。示例性地,存储媒介可以与处理器连接,以使得处理器可以从存储媒介中读取信息,并可以向存储媒介存写信息。可选地,存储媒介还可以集成到处理器中。处理器和存储媒介可以设置于ASIC中,ASIC可以设置于终端设备中。可选地,处理器和存储媒介也可以设置于终端设备中的不同的部件中。The steps of the method or algorithm described in the embodiments of the present application can be directly embedded in hardware, a software unit executed by a processor, or a combination of the two. The software unit can be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other storage medium in the field. Exemplarily, the storage medium may be connected to the processor, so that the processor can read information from the storage medium, and can store and write information to the storage medium. Optionally, the storage medium may also be integrated into the processor. The processor and the storage medium can be arranged in an ASIC, and the ASIC can be arranged in a terminal device. Optionally, the processor and the storage medium may also be arranged in different components in the terminal device.
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。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.
尽管结合具体特征对本申请实施例进行了描述,显而易见的,在不脱离本申请实施例的精神和范围的情况下,可对其进行各种修改和组合。相应地,本说明书和附图仅仅是所附权利要求所界定的本申请实施例的示例性说明,且视为已覆盖本申请实施例范围内的任意和所有修改、变化、组合或等同物。Although the embodiments of the present application have been described in combination with specific features, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the embodiments of the present application. Correspondingly, this specification and drawings are merely exemplary descriptions of the embodiments of the present application defined by the appended claims, and are deemed to cover any and all modifications, changes, combinations or equivalents within the scope of the embodiments of the present application.

Claims (20)

  1. 一种通信方法,其特征在于,所述方法包括:A communication method, characterized in that the method includes:
    从网络设备接收配置信息,所述配置信息用于指示跨小区监控控制信道的至少一种模式,所述至少一种模式中包括第一模式,所述第一模式包括在第二小区上监控第一小区的控制信道;Receive configuration information from a network device, the configuration information is used to indicate at least one mode of cross-cell monitoring control channel, the at least one mode includes a first mode, and the first mode includes monitoring a second cell on a second cell. Control channel of a cell;
    从所述网络设备接收第一信息,所述第一信息用于指示跨小区监控控制信道;Receiving first information from the network device, where the first information is used to indicate a cross-cell monitoring control channel;
    在所述第二小区上监控所述第一小区的控制信道。Monitoring the control channel of the first cell on the second cell.
  2. 根据权利要求1所述的方法,其特征在于,所述至少一种模式包括两种或两种以上模式;The method according to claim 1, wherein the at least one mode includes two or more modes;
    所述方法还包括:The method also includes:
    从所述网络设备接收第二信息,所述第二信息用于指示跨小区监控控制信道的模式为所述第一模式。Receiving second information from the network device, where the second information is used to indicate that the mode of the cross-cell monitoring control channel is the first mode.
  3. 根据权利要求1或2所述的方法,其特征在于,从所述网络设备接收所述第一信息和/或第二信息,包括:The method according to claim 1 or 2, wherein receiving the first information and/or the second information from the network device comprises:
    从所述网络设备接收下行控制信息DCI,所述DCI包括所述第一信息和/或所述第二信息。Receiving downlink control information DCI from the network device, where the DCI includes the first information and/or the second information.
  4. 根据权利要求3所述的方法,其特征在于:The method according to claim 3, characterized in that:
    所述DCI中的以下一个或多个域用于承载所述第一信息:混合自动重传请求HARQ进程编号指示域、冗余版本RV指示域、调制和编码方式指示域、频域资源指示域、时域资源分配指示域、新传数据指示域、发送功率指示域、跳频指示域、保留域。One or more of the following fields in the DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and coding mode indication field, frequency domain resource indication field , Time domain resource allocation indication domain, newly transmitted data indication domain, transmit power indication domain, frequency hopping indication domain, reserved domain.
  5. 根据权利要求3或4所述的方法,其特征在于,所述DCI还包括第三信息;The method according to claim 3 or 4, wherein the DCI further includes third information;
    其中,所述第三信息用于指示在所述第一小区上不监控所述第一小区的PDCCH,或者,所述第三信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。Wherein, the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third information is used to indicate that the first cell is to be monitored on the first cell The period of the PDCCH.
  6. 根据权利要求1或2所述的方法,其特征在于,从所述网络设备接收所述第一信息和/或第二信息,包括:The method according to claim 1 or 2, wherein receiving the first information and/or the second information from the network device comprises:
    从所述网络设备接收媒体接入控制单元MAC CE,所述MAC CE包括所述第一信息和/或第二信息。A media access control unit MAC CE is received from the network device, where the MAC CE includes the first information and/or second information.
  7. 根据权利要求6所述的方法,其特征在于,所述MAC CE对应的MAC子头中包括逻辑信道标识符LCID,所述LCID用于指示所述MAC CE包括所述第一信息和/或所述第二信息。The method according to claim 6, wherein the MAC subheader corresponding to the MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the Mentioned second information.
  8. 一种通信方法,其特征在于,所述方法包括:A communication method, characterized in that the method includes:
    向终端设备发送配置信息,所述配置信息用于指示跨小区监控控制信道的至少一种模式,所述至少一种模式中包括第一模式,所述第一模式包括在第二小区上监控第一小区的控制信道;Sending configuration information to the terminal device, the configuration information being used to indicate at least one mode of cross-cell monitoring control channel, the at least one mode includes the first mode, and the first mode includes monitoring the second cell on the second cell. Control channel of a cell;
    向所述终端设备发送第一信息,所述第一信息用于指示跨小区监控控制信道。Send first information to the terminal device, where the first information is used to indicate a cross-cell monitoring control channel.
  9. 根据权利要求8所述的方法,其特征在于,所述至少一种模式包括两种或两种以上模式;The method according to claim 8, wherein the at least one mode includes two or more modes;
    所述方法还包括:The method also includes:
    向所述终端设备发送第二信息,所述第二信息用于指示跨小区监控控制信道的模式为 所述第一模式。Send second information to the terminal device, where the second information is used to indicate that the mode of the cross-cell monitoring control channel is the first mode.
  10. 根据权利要求8或9所述的方法,其特征在于,向所述终端设备发送所述第一信息和/或第二信息,包括:The method according to claim 8 or 9, wherein sending the first information and/or the second information to the terminal device comprises:
    向所述终端设备发送下行控制信息DCI,所述DCI包括所述第一信息和/或所述第二信息。Sending downlink control information DCI to the terminal device, where the DCI includes the first information and/or the second information.
  11. 根据权利要求10所述的方法,其特征在于:The method according to claim 10, wherein:
    所述DCI中的以下一个或多个域用于承载所述第一信息:混合自动重传请求HARQ进程编号指示域、冗余版本RV指示域、调制和编码方式指示域、频域资源指示域、时域资源分配指示域、新传数据指示域、发送功率指示域、跳频指示域、保留域。One or more of the following fields in the DCI are used to carry the first information: hybrid automatic repeat request HARQ process number indication field, redundancy version RV indication field, modulation and coding mode indication field, frequency domain resource indication field , Time domain resource allocation indication domain, newly transmitted data indication domain, transmit power indication domain, frequency hopping indication domain, reserved domain.
  12. 根据权利要求10或11所述的方法,其特征在于,所述DCI还包括第三信息;The method according to claim 10 or 11, wherein the DCI further includes third information;
    其中,所述第三信息用于指示在所述第一小区上不监控所述第一小区的PDCCH,或者,所述第三信息用于指示在所述第一小区上监控所述第一小区的PDCCH的周期。Wherein, the third information is used to indicate that the PDCCH of the first cell is not to be monitored on the first cell, or the third information is used to indicate that the first cell is to be monitored on the first cell The period of the PDCCH.
  13. 根据权利要求8或9所述的方法,其特征在于,向所述终端设备发送所述第一信息和/或所述第二信息,包括:The method according to claim 8 or 9, wherein sending the first information and/or the second information to the terminal device comprises:
    向所述终端设备媒体接入控制单元MAC CE,所述MAC CE包括所述第一信息和/或第二信息。To the terminal device media access control unit MAC CE, where the MAC CE includes the first information and/or the second information.
  14. 根据权利要求13所述的方法,其特征在于,所述MAC CE对应的MAC子头中包括逻辑信道标识符LCID,所述LCID用于指示所述MAC CE包括所述第一信息和/或所述第二信息。The method according to claim 13, wherein the MAC subheader corresponding to the MAC CE includes a logical channel identifier LCID, and the LCID is used to indicate that the MAC CE includes the first information and/or the Mentioned second information.
  15. 一种装置,其特征在于,所述装置包括处理器、存储器以及存储在所述存储器上并可在所述处理器上运行的指令,当所述指令被运行时,使得所述装置执行如权利要求1至7中任一项所述的方法。A device, characterized in that the device includes a processor, a memory, and instructions stored on the memory and executable on the processor, and when the instructions are executed, the device executes The method of any one of claims 1 to 7.
  16. 一种装置,其特征在于,所述装置包括处理器、存储器以及存储在所述存储器上并可在所述处理器上运行的指令,当所述指令被运行时,使得所述装置执行如权利要求8至14中任一项所述的方法。A device, characterized in that the device includes a processor, a memory, and instructions stored on the memory and executable on the processor, and when the instructions are executed, the device executes The method of any one of claims 8-14.
  17. 一种终端设备,其特征在于,包括如权利要求15所述的装置。A terminal device, characterized by comprising the device according to claim 15.
  18. 一种网络设备,其特征在于,包括如权利要求16所述的装置。A network device, characterized by comprising the device according to claim 16.
  19. 一种计算机可读存储介质,其特征在于,包括指令,当其在计算机上运行时,使得计算机执行如权利要求1至14任一项所述的方法。A computer-readable storage medium, characterized by comprising instructions, which when run on a computer, causes the computer to execute the method according to any one of claims 1 to 14.
  20. 一种计算机程序产品,其特征在于,当其在计算机上运行时,使得计算机执行权利要求1至14任一项所述的方法。A computer program product, characterized in that, when it runs on a computer, it causes the computer to execute the method according to any one of claims 1 to 14.
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