An information transmission method and device

Abstract

An information transmission method and apparatus, which are used to solve the problem that the existing UE has a large number of blind detections of group common PDCCH and high power consumption. The method includes: a network device generates first information; the network device sends the first information to a terminal device, and the first information is used to instruct the terminal device to detect at least one group common PDCCH on N component carriers (CCs), where N is a positive integer and less than or equal to M, and M is equal to the number of CCs configured for the terminal device, and M is a positive integer. Based on this, after receiving the first information, the terminal device detects the at least one group common PDCCH on the N CCs according to the first information.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to an information transmission method and apparatus. Background Art

[0002] In a 5G new radio (NR) system, the system bandwidth can be divided into multiple carrier components (CCs). The network device transmits the group common physical downlink control channel (PDCCH) corresponding to each CC to the user equipment (UE) on each CC. The group common PDCCH is used to indicate the common information of the UEs included in the UE group, that is, the group UE common information. All UEs under the base station can form a UE group, or all UEs under the base station can be divided into multiple UE groups.

[0003] Currently, in order for a UE to obtain common information, it needs to detect the group common PDCCH from each CC to obtain the group UE common information in the CC configured for the UE, resulting in a relatively large number of times of detecting the group common PDCCH and relatively high power consumption. Summary of the Invention

[0004] This application provides an information transmission method and apparatus to solve the problem that the existing UE blindly detects the group common PDCCH a relatively large number of times and has relatively high power consumption.

[0005] In a first aspect, an embodiment of this application provides an information transmission method, which includes: The network device generates first information; The network device sends the first information to the terminal device, and the first information is used to instruct the terminal device to detect at least one group common PDCCH on N component carriers CCs, where N is a positive integer and less than or equal to M, and M is equal to the number of CCs configured for the terminal device, and M is a positive integer. Based on this, after receiving the first information, the terminal device detects the at least one group common PDCCH on the N CCs according to the first information. Since the terminal device detects the group common PDCCH on the fixed CCs indicated by the network device, the number of detections is reduced, and the power consumption of the terminal device is reduced.

[0006] It should be noted that when N is equal to M, the same group UE common information is carried in the group common PDCCH transmitted on each of the M CCs, that is, it is indicated that the terminal device detects at least one group common PDCCH on any one of the N component carriers CCs. Thus, the terminal device can select any one of the CCs to detect the group common PDCCH and receive the group UE common information from the group common PDCCH.

[0007] In a possible design, the N CCs are N of the M CCs configured for the terminal device. Based on this, the terminal device can detect the group common PDCCH from N of the configured M CCs, thus avoiding the terminal device detecting CCs that are not configured for itself and increasing power consumption.

[0008] In a possible design, the first information includes the index values of the N CCs. In the above design, the network device indicates the index values of the N CCs for detecting at least one group common PDCCH, so that the terminal device can determine on which CC to detect at least one group common PDCCH only according to the index values, providing a simple and effective way.

[0009] In a possible design, the group common PDCCH is used to indicate the group user equipment UE common information of the M CCs configured for the terminal device. The group UE common information may include at least one of: time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

[0010] In the above design, the network device indicates the group UE common information of the M CCs configured for the terminal device through the group common PDCCH, so that the terminal device determines the time-frequency domain resources used for subsequent data transmission.

[0011] In a possible design, the first information may include the correspondence between the index values of the M CCs configured for the terminal device, the index values of the N CCs, and the domains in the group UE common information; or, the first information may include the correspondence between the index values of the M CCs configured for the terminal device, the index values of the N CCs, the domains in the group UE common information, and the identification information used for scrambling the group UE common information.

[0012] Through the above design, the terminal device can determine on which CC to detect the group common PDCCH through the first information, and obtain the group UE common information of the CC configured for the terminal device corresponding to which domain from the group UE common information carried by the detected group common PDCCH.

[0013] In a possible design, the group UE common information is scrambled using the identification information of the CC group to which the N CCs belong, or the group UE common information is scrambled using the identification information of the terminal device group to which the terminal device belongs, or the group UE common information is scrambled using the identification information of the terminal device. In the above design, the group UE common information is scrambled using the corresponding identification information, so that the terminal device can descramble the corresponding group UE common information using the corresponding identification information.

[0014] In a possible design, the network device sends the first information to the terminal device, which can be specifically implemented in the following manner: the network device sends the first information to the terminal device through downlink control information DCI signaling, or radio resource control RRC signaling, or cell broadcast signaling.

[0015] In a second aspect, an embodiment of the present application provides an information transmission method, including: the terminal device receives first information sent by the network device, where the first information is used to instruct the terminal device to detect at least one group common physical downlink control channel PDCCH on N component carriers CCs, N is a positive integer and less than or equal to M, M is equal to the number of CCs configured for the terminal device, and M is a positive integer; the terminal device detects the at least one group common physical downlink control channel PDCCH on the N CCs according to the first information.

[0016] Through the above design, since the terminal device detects the group common PDCCH on the fixed CCs indicated by the network device, the number of detections is reduced, reducing the power consumption of the terminal device.

[0017] In a possible design, the N CCs are N of the M CCs configured for the terminal device. Based on this, the terminal device can detect the group common PDCCH from N of the configured M CCs, thus avoiding the terminal device detecting CCs that are not configured for itself and increasing power consumption.

[0018] In a possible design, the index values of the N CCs are included in the first information. In the above design, the network device indicates the index values of the N CCs used to detect at least one group common PDCCH, so that the terminal device can determine on which CC to detect at least one group common PDCCH only according to the index values, providing a simple and effective method.

[0019] In a possible design, the group common PDCCH is used to indicate the group user equipment (UE) common information of M CCs configured for the terminal device; when the terminal device detects at least one group common PDCCH on the N CCs according to the first information, it can be implemented in the following manner: the terminal device obtains, according to the first information, on the N CCs, the group UE common information of M CCs configured for the terminal device carried on the at least one group common PDCCH. The group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information. In the above design, the network device uses the group common PDCCH to indicate the group UE common information of M CCs configured for the terminal device, so that the terminal device determines the time-frequency domain resources used for subsequent data transmission.

[0020] In a possible design, the first information includes the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the domain in the group UE common information; or, the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the domain in the group UE common information, and the identification information used for scrambling the group common PDCCH.

[0021] Through the above design, the terminal device can determine on which CC to detect the group common PDCCH according to the first information, and determine from which domain in the group UE common information carried on the detected group common PDCCH to obtain the group UE common information of the CC configured for the terminal device.

[0022] In a possible design, the group UE common information is scrambled with the identification information of the CC group where the at least one CC is located, or the group UE common information is scrambled with the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled with the identification information of the terminal device. In the above design, the group UE common information is scrambled with the corresponding identification information, so that the terminal device can descramble the corresponding group UE common information with the corresponding identification information.

[0023] In a possible design, when the terminal device receives the first information sent by the network device, it can be specifically implemented in the following manner: the terminal device receives the downlink control information (DCI) signaling sent by the network device, and the DCI signaling carries the first information; or, the terminal device receives the radio resource control (RRC) signaling sent by the network device, and the RRC signaling carries the first information; or, the terminal device receives the cell broadcast signaling sent by the network device, and the RRC signaling carries the first information.

[0024] In a third aspect, an embodiment of the present application provides an information transmission method, including: a network device generates group user equipment (UE) common information for M component carriers (CCs) configured for the terminal device; the network device sends the group UE common information for the M CCs configured for the terminal device to the terminal device on at least one group common physical downlink control channel (PDCCH) on N CCs, where N is a positive integer and less than or equal to M, and M is a positive integer.

[0025] Through the above design, the network device sends the group UE common information for the M CCs configured for the terminal device to the terminal device on at least one group common PDCCH on N CCs, so that the terminal device receives the group UE common information sent by the network device on at least one group common PDCCH on N CCs, thereby reducing the number of blind detections of the terminal device.

[0026] It should be noted that when N is equal to M, the same group UE common information is carried in each group common PDCCH transmitted on each of the M CCs, that is, it can be configured that the terminal device detects at least one group common PDCCH on any one of the N component carriers (CCs), so that the terminal device can select any one of the CCs to detect the group common PDCCH and receive the group UE common information from the group common PDCCH.

[0027] In a possible design, the N CCs are N of the M CCs configured for the terminal device.

[0028] In a possible design, the network device and the terminal device can adopt a static configuration method to determine on which CC to send the group common PDCCH for carrying the group UE common information to which terminal device.

[0029] In another possible design, it can also be configured for the terminal device by the network device in a semi-static manner, so that the method can further include: the network device sends first information, and the first information is used to instruct the terminal device to detect the at least one group common PDCCH on the N CCs.

[0030] In a possible design, the first information includes index values of the N CCs.

[0031] In a possible design, the group UE common information is scrambled with the identification information of the CC group where the at least one CC is located, or the group UE common information is scrambled with the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled with the identification information of the terminal device.

[0032] In a possible design, the first information may further include: the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the fields in the group UE common information; or, the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the fields in the group UE common information, and the identification information used for scrambling the group UE common information.

[0033] In a possible design, the network device sending the first information to the terminal device includes: the network device sending the first information to the terminal device through downlink control information DCI signaling, radio resource control RRC signaling, or cell broadcast signaling.

[0034] In a possible design, the group UE common information includes at least one of: time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

[0035] Fourthly, an information transmission method provided by an embodiment of this application includes: a terminal device detecting at least one group common physical downlink control channel PDCCH on N component carriers CC, where the at least one group common PDCCH is used to indicate group user equipment UE common information of M CCs configured for the terminal device, N is a positive integer and less than or equal to M, and M is a positive integer; the terminal device receiving the group UE common information of the M CCs configured for the terminal device from the detected at least one group common PDCCH.

[0036] The group UE common information may include at least one of: time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

[0037] In a possible design, the N CCs are N of the M CCs configured for the terminal device.

[0038] In a possible design, the network device and the terminal device may adopt a static configuration method to determine on which CC to send the group common PDCCH for carrying the group UE common information to which terminal device.

[0039] In another possible design, it may also be configured for the terminal device by the network device in a semi-static manner. Thus, before the terminal device detects at least one group common physical downlink control channel PDCCH on N component carriers CC, the terminal device receives the first information sent by the network device, and the first information is used to indicate that the terminal device detects the at least one group common PDCCH on the N CCs; the terminal device detects the at least one group common PDCCH on N component carriers CC according to the first information.

[0040] In a possible design, the first information includes the index values of the N CCs.

[0041] In a possible design, the group UE common information is scrambled using the identification information of the CC group where the N CCs are located, or the group UE common information is scrambled using the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled using the identification information of the terminal device.

[0042] In a possible design, the first information may further include: the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the fields in the group UE common information; or, the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the fields in the group UE common information, and the identification information used to scramble the group UE common information.

[0043] In a possible design, the terminal device receives the first information sent by the network device, including: the terminal device receives the downlink control information DCI signaling sent by the network device, and the DCI signaling carries the first information; or, the terminal device receives the radio resource control RRC signaling sent by the network device, and the RRC signaling carries the first information; or, the terminal device receives the cell broadcast signaling sent by the network device, and the RRC signaling carries the first information.

[0044] In a fifth aspect, the structure of the network device may include a generating unit and a sending unit, and these units may perform the corresponding functions in any of the design examples in the first aspect or the third aspect. For specific details, refer to the detailed description in the method examples, and details are not described here.

[0045] When the behavior of the network device is implemented by hardware, the structure of the network device includes a transceiver, a processor, and a memory. The transceiver is used for communication interaction with the terminal device, and the processor is configured to support the network device to perform the corresponding functions in the methods described in the first aspect or the third aspect. The memory is coupled to the processor and stores the necessary program instructions and data of the network device. Specifically, the processor is used to call and execute the software program stored in the memory, and realizes the methods described in any of the designs in the first aspect or the third aspect by sending and receiving data through the transceiver.

[0046] In a sixth aspect, the structure of the terminal device includes a receiving unit and a detecting unit, and these units may perform the corresponding functions in any of the design examples in the second aspect or the fourth aspect. For specific details, refer to the detailed description in the method examples, and details are not described here.

[0047] When the behavior of the terminal device is implemented by hardware, the structure of the terminal device includes a transceiver, a processor, and a memory. The transceiver is used for communication interaction with the base station. The processor is configured to support the terminal device to execute the corresponding functions in the methods described in the above second aspect or fourth aspect. The memory is coupled to the processor and stores the necessary program instructions and data of the terminal device. Specifically, the processor is used to call and execute the software program stored in the memory, and realizes the methods described in any design of the above second aspect or fourth aspect by sending and receiving data through the transceiver.

[0048] In a seventh aspect, an embodiment of the present application further provides a computer storage medium, in which a software program is stored, and when the software program is read and executed by one or more processors, the methods provided by any design in the first aspect to the fourth aspect can be realized.

[0049] In an eighth aspect, an embodiment of the present application provides a computer program product containing instructions, which when running on a computer, causes the computer to execute the methods provided by any design in the first aspect to the fourth aspect.

[0050] In a ninth aspect, an embodiment of the present application provides a chip, which is connected to a memory and is used to read and execute the software program stored in the memory to realize the methods provided by any design in the first aspect to the fourth aspect.

[0051] In a tenth aspect, an embodiment of the present application provides a system, which includes the network device described in the fifth aspect and the terminal device described in the sixth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the NR system architecture provided by an embodiment of the present application;

[0053] Figure 2 It is a schematic diagram of a time slot provided by an embodiment of the present application;

[0054] Figure 3 It is a flowchart of the information transmission method provided by an embodiment of the present application;

[0055] Figure 4 It is one of the schematic diagrams of the CC configuration method provided by an embodiment of the present application;

[0056] Figure 5 It is another schematic diagram of the CC configuration method provided by an embodiment of the present application;

[0057] Figure 6 It is yet another schematic diagram of the CC configuration method provided by an embodiment of the present application;

[0058] Figure 7 The fourth schematic diagram of the CC configuration method provided by the embodiment of the present application;

[0059] Figure 8 The fifth schematic diagram of the CC configuration method provided by the embodiment of the present application;

[0060] Figure 9 The sixth schematic diagram of the CC configuration method provided by the embodiment of the present application;

[0061] Figure 10 The flowchart of the information transmission method provided by the embodiment of the present application;

[0062] Figure 11 A schematic diagram of the structure of a network device provided by the embodiment of the present application;

[0063] Figure 12 Another schematic diagram of the structure of a network device provided by the embodiment of the present application;

[0064] Figure 13 Another schematic diagram of the structure of a network device provided by the embodiment of the present application;

[0065] Figure 14 A schematic diagram of the structure of a terminal device provided by the embodiment of the present application;

[0066] Figure 15 Another schematic diagram of the structure of a terminal device provided by the embodiment of the present application;

[0067] Figure 16 Another schematic diagram of the structure of a terminal device provided by the embodiment of the present application. Detailed implementation manners

[0068] The embodiments of the present application can be applied to, but are not limited to, communication systems capable of transmitting uplink control signaling. For example, in a new radio (NR) system, it can be used in the architecture of the NR system as Figure 1 shown: The NR system includes a base station and a terminal device, and uplink transmission and downlink transmission are performed between the base station and the terminal device.

[0069] The embodiments of the present application can be applied to scenarios of carrier aggregation (CA) or dual-connectivity (DC).

[0070] For the convenience of subsequent description, some terms in the present application are explained below to facilitate understanding by those skilled in the art.

[0071] The group common PDCCH is for a group of UEs and is used to indicate the common information of a group of UEs, that is, the group UE common information.

[0072] The group common PDCCH includes multiple domains, each of which occupies a certain number of bits of information bits, and different domains are used to carry different information.

[0073] For the group UE common information, all UEs under a base station can form a UE group, or all UEs under a base station can be divided into multiple UE groups. The group UE common information includes the common information corresponding to all UEs in the UE group. This group of UEs can also be understood as all UEs in a cell, or a UE group formed by all UEs under a cell according to a certain rule (for example, according to service differentiation), or a group formed by UEs in multiple cells.

[0074] The group UE common information includes, for example, any one of time domain unit format information, frequency domain resource information of the group of UEs, and preemption indication information. The group UE common information may also include the common information of other groups of UEs, which is not limited in this application. Among them, the time domain unit can be any one of a time slot, a subframe, a frame, a mini-slot (or non-slot), or K orthogonal frequency division multiplexing (OFDM) symbols, etc., where K is an integer greater than or equal to 1.

[0075] For example, for slot format related information (SFI), in the 5G NR system, multiple slot structures can be supported. A slot can include one part or multiple parts. For example, a slot can include only uplink (UL) transmission, or only downlink (DL) transmission, or a slot that includes both UL and DL transmissions. The slot also includes a guard interval (GP) which is used for the transceiver to perform uplink-downlink conversion. Or a slot may also include unknown or flexible resources, that is, the UE does not know whether this part of the resources is for UL transmission or DL transmission, or this resource can be flexibly designated as a resource for UL transmission or DL transmission, etc. Among them, UL transmission can include UL data transmission and / or UL control transmission, and DL transmission can include DL data transmission and / or DL control transmission. See Figure 2 A slot corresponding to each of Type 1 to Type 7 shown. Therefore, for the several parts included in a slot, the symbol lengths occupied by these several parts need to be indicated by the base station to the terminal device.

[0076] In the embodiments of the present application, the network device can be a base station or a device capable of implementing the functions of a base station. In the embodiments of the present application, the base station is taken as an example for illustration. A base station (for example, an access point) can refer to a device in the access network that communicates with a terminal device through at least one sector over the air interface. The base station can also coordinate the management of the attributes of the air interface. For example, the base station can be an evolved base station in LTE or a base station (gNB) or an access point in the NR system, which is not limited in the embodiments of the present application. It should be noted that the base station described in the embodiments of the present application can not only be a base station device, but also a relay device, or other network element devices with base station functions.

[0077] The terminal device can be a wireless terminal or a wired terminal. A wireless terminal can be a device that provides voice and / or data connectivity to users, a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem. The wireless terminal can communicate with at least one core network via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the radio 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), and other devices. The wireless terminal can also be referred to as a system, subscriber unit (SU), subscriber station (SS), mobile station (MB), mobile, remote station (RS), access point (AP), remote terminal (RT), access terminal (AT), user terminal (UT), user agent (UA), user device (UD), or user equipment (UE). Hereinafter, the terminal device will be referred to as UE.

[0078] In addition, it should be understood that in the description of this application, terms such as "first" and "second" are only used for the purpose of distinguishing descriptions, and should not be construed as indicating or implying relative importance, nor as indicating or implying an order. The term "plurality" in the description of this application means two or more.

[0079] The embodiments of the present application provide an information transmission method and apparatus, which are used to solve the problem that the existing terminal device detects the group common PDCCH more frequently and has a relatively high power consumption. Among them, the method and the apparatus are based on the same inventive concept. Since the principles of the method and the apparatus for solving the problem are similar, the implementation of the apparatus and the method can be referred to each other, and the repeated parts will not be described again.

[0080] See Figure 3 As shown, it is a schematic flowchart of an information transmission method provided by an embodiment of the present application. The information transmission method includes:

[0081] S301, the network device generates first information.

[0082] S302, the network device sends the first information to the terminal device, and the first information is used to instruct the terminal device to detect at least one group common PDCCH on N component carriers (CCs), where N is a positive integer and less than or equal to M, and M is equal to the number of CCs configured for the terminal device.

[0083] The first information may include the index values of the N CCs occupied by the at least one group common PDCCH.

[0084] S303, the terminal device receives the first information sent by the network device, and the first information is used to instruct the terminal device to detect at least one group common PDCCH on N component carriers (CCs), where N is a positive integer and less than or equal to M, and M is equal to the number of CCs configured for the terminal device.

[0085] S304, the terminal device detects the at least one group common PDCCH on the N CCs according to the first information.

[0086] Through the above solution, before the terminal device detects the group common PDCCH, the network device sends to the terminal device an indication of which CC the terminal device should detect the group common PDCCH on. The terminal device does not need to detect all CCs to obtain the group common PDCCH, reducing the number of blind detections of the terminal device and lowering the power consumption of the terminal device.

[0087] Optionally, the N CCs may be N of the M CCs configured for the terminal device, that is, the network device may configure at least one group common physical downlink control channel (PDCCH) to be carried on N of the M CCs configured for the terminal device and indicate the configuration to the terminal device, thereby reducing the number of blind detections of the terminal device and lowering the power consumption.

[0088] Optionally, the group common PDCCH is used to indicate group UE common information of M CCs configured for the terminal device. Therefore, after the terminal device detects the at least one group common PDCCH on the N CCs according to the first information in step S304, the method may further include:

[0089] S305. The terminal device receives the group UE common information of M CCs configured for the terminal device from the detected at least one group common PDCCH.

[0090] It should be noted that when N is equal to M, the same group UE common information is carried in the group common PDCCH on each of the M CCs. Therefore, the terminal device can select any one CC to detect the group common PDCCH and receive the group UE common information from the group common PDCCH.

[0091] Based on this, after obtaining the group UE common information, the terminal device can determine time-frequency domain resources, or time slot formats, or priority occupancy indication and other information used for transmitting or receiving data based on the group UE common information.

[0092] Optionally, when the network device sends the first information to the terminal device, it may be specifically implemented in the following manner:

[0093] The network device sends the first information to the terminal device through downlink control information (DCI) signaling, or radio resource control (RRC) signaling, or cell broadcast signaling. Therefore, when the terminal device receives the first information sent by the network device, it may be specifically implemented in the following manner: the terminal device receives the DCI signaling sent by the network device, and the DCI signaling carries the first information; or, the terminal device receives the RRC signaling sent by the network device, and the RRC signaling carries the first information; or, the terminal device receives the cell broadcast signaling sent by the network device, and the RRC signaling carries the first information.

[0094] In the embodiments of the present application, when the first information is used to instruct the terminal device to detect at least one group common PDCCH on N CCs, it may be specifically implemented in any of the following manners:

[0095] Method 1: The first information includes index values of N CCs configured for the terminal device.

[0096] Method 2: The first piece of information includes the correspondence between the index values of the M CCs configured for the terminal device, the index values of the N CCs carrying the group common PDCCH, and the fields in the group UE common information.

[0097] Method 3: The first piece of information includes the correspondence between the index values of the M CCs configured for the terminal device, the index values of the N CCs carrying the group common PDCCH, the fields in the group UE common information, and the identification information used for scrambling the group UE common information.

[0098] Method 4: The first piece of information includes the index values of the N CCs configured for the terminal device and one of the correspondences in Method 2 and Method 3. In this case, the network device can send the index values of the N CCs configured for the terminal device and the correspondence to the terminal device through the same signaling, or the network device can also send the index values of the N CCs configured for the terminal device and the correspondence to the terminal device through different signaling. The embodiments of the present application do not make specific limitations on this.

[0099] The following specifically describes the solution provided by the embodiments of the present application in combination with specific application scenarios. Taking the network device as a base station as an example, since the group UE common information of each terminal device included in the terminal device group is the same, a terminal device group will be used as an example for subsequent description.

[0100] The embodiments of the present application can be applied in the carrier aggregation scenario or the dual connection scenario.

[0101] In the carrier aggregation scenario, it can be divided into two cases. The first case: All the CCs occupied by a base station form a CC group, that is, all the CCs form a CC group. The second case: All the CCs included in a base station are divided into L CC groups, where L is greater than 2.

[0102] In the DC scenario, it can be divided into two cases. The first case: It includes one macro cell and multiple small cells, and the one macro cell and the multiple small cells form a group. The second case: It includes multiple macro cells and multiple small cells, and the multiple macro cells and the multiple small cells can be divided into multiple groups.

[0103] Among them, generally, a macro cell occupies one CC, and each small cell occupies one CC. Thus, one CC occupied by the macro cell and multiple CCs occupied by multiple small cells can form a CC group. Based on this, the following specifically describes the carrier aggregation scenario from the perspective of CCs. The information transmission methods in the macro cell and small cells in the DC scenario can refer to the information transmission methods in the carrier aggregation scenario described from the CC perspective and will not be elaborated in detail.

[0104] The first case of the carrier aggregation scenario is specifically described through the following Embodiment 1.

[0105] Embodiment 1

[0106] All CCs occupied by a base station form a CC group, that is, all CCs form a CC group. The base station can configure N CCs in the CC group to carry at least one group common PDCCH. The at least one group common PDCCH is used to carry the group UE common information of all CCs in the CC group. For example, the group UE common information includes SFI. After the UE obtains the SFI from the N CCs, it can determine the format of the time slot on which CC according to the SFI.

[0107] For example, the CCs occupied by the base station include CC1 to CC6, and CC1 is the CC used to carry at least one group common PDCCH. Then the base station sends the first information to the UEs in all UE groups. The first information is used to instruct the UE to detect at least one group common PDCCH on CC1, and the at least one group common PDCCH carries the group UE common information of all CCs in the CC group. Thus, after the UE receives the first information, it can detect at least one group common PDCCH on CC1 according to the first information and obtain the group UE common information of the CC configured for itself in the at least one group common PDCCH.

[0108] Based on this, when the base station configures CCs for the UE, it needs to configure CC1 for all UE groups.

[0109] Specifically, in the case described in the above Method 1: The first information may include the index value of CC1 that is used to carry at least one group common PDCCH, so that the terminal device can determine to detect the group common PDCCH from CC1 through the index value of CC1.

[0110] In the case described in the above Method 2: The first information may include the correspondence between the index value of the CC configured for the terminal device and the index value of the CC that carries the group common PDCCH, and the fields in the group UE common information. Thus, the UE can determine on which CC to detect the group common PDCCH through the first information, and can determine in which field of the group UE common information carried in the group common PDCCH the group UE common information of which CC is included. For example, see Table 1. The above correspondence can be notified to the UE in the form of a table. Of course, it can also be notified to the UE by other means other than the table.

[0111] In the case described in the above Method 3: The first information may include the correspondence between the index value of the CC configured for the terminal device and the index value of the CC that carries the group common PDCCH, the identification information used to scramble the group UE common information, and the fields in the group UE common information.

[0112] The group UE common information may be scrambled using the identification information of the CC group, or the group UE common information may be scrambled using the identification information of the UE group to which the CC group is allocated, or the group UE common information may be scrambled using the identification information of the identification information of any one of the UEs to which the CC group is allocated, or the group UE common information may be scrambled using the identification information configured by the network side. This application does not make specific limitations. Thus, the UE can determine on which CC to detect the group common PDCCH through the first information, what identification information to use to descramble the group UE common information carried in the group common PDCCH, and can determine which domain of the descrambled group UE common information includes the group UE common information of which CC.

[0113] Table 1

[0114]

[0115] In the case described in the above method 4: The first information may include the index value of the CC for carrying at least one group common PDCCH and may also include one of the corresponding relationships described in method 2 and the corresponding relationships described in method 3. Among them, the base station may send the index value of the CC for carrying at least one group common PDCCH and the corresponding relationships described in the above method 2 or method 3 to the UE through the same or different signaling.

[0116] In the above solution, the number of blind detections of the UE is reduced to the greatest extent. The UE only needs to detect the group common PDCCH on one CC to obtain the group UE common information of the CC configured for the UE.

[0117] However, in the above case, the CC configured for each UE needs to include the CC with the group common PDCCH, which results in inflexible scheduling.

[0118] Of course, multiple CCs can also be selected to carry the group common PDCCH, and the group common PDCCH on each CC can carry the group UE common information of all CCs. However, in this case, although the multiple CCs include the group common PDCCH, which increases the scheduling flexibility, the overhead of the group UE common information in the group common PDCCH is relatively large, and if the UE is not allocated all the CCs, in fact, the UE does not need to know the group UE common information of all the CCs.

[0119] In the first case of the DC scenario, it includes one macro cell and multiple small cells, and the one macro cell and the multiple small cells form a group. Specifically, the macro cell is configured to carry the group common PDCCH, and the group common PDCCH is used to carry the group UE common information of all the cells.

[0120] The second case for the carrier aggregation scenario is specifically described through the following Embodiment 2.

[0121] Embodiment 2

[0122] All the CCs occupied by a base station are divided into multiple CC groups. The base station can configure one or more CCs in each CC group to carry at least one group common PDCCH, and the at least one group common PDCCH is used to carry the group UE common information of all the CCs in the CC group. For example, the group UE common information includes SFI. After the UE obtains the SFI from one or more CCs in the CC group, it can determine the time slot format of which CC in the CC group according to the SFI.

[0123] For example, a total of 20 CCs are occupied under a base station and are divided into 4 groups, and each group contains 5 CCs. One or more CCs can be selected from the 5 CCs in each group to carry a group common PDCCH. In the embodiment of the present application, taking the selection of one CC in each group to carry the group common PDCCH as an example, the group common PDCCH is used to indicate the group UE common information on all the CCs in the CC group.

[0124] Under the above configuration, the base station can indicate the CC for carrying the group common PDCCH to the UE through the first information. This first information is used to instruct the UE to detect the group common PDCCH on at least one component carrier CC, and the group common PDCCH carries the group UE common information of the CC configured for the UE.

[0125] In the second case of the DC scenario, it includes multiple macro cells and multiple small cells, and the multiple macro cells and multiple small cells form multiple groups. For example, if there are 4 macro cells and 20 small cells, then 4 groups can be included, and each group includes 5 cells, namely one macro cell and 4 small cells. In each group, the group common PDCCH is carried in the macro cell, and the group common PDCCH carries the group UE common information of all the cells in the group. Thus, the base station sends the first information to the UE, and the first information instructs the UE to detect the group common PDCCH through the macro cell, so that the UE obtains the group UE common information of all the cells in the group corresponding to the macro cell from the group common PDCCH.

[0126] Specifically, in the embodiments of the present application, two possible ways are divided to specifically describe Embodiment 2. The first possible way: Configure the CC for the UE with the CC as the granularity, that is, the CC configured for the UE may span different CC groups. For example, it includes CC1 in CC group1, and also includes CC4 and CC5 in CC group2. The second possible way: Configure the CC for the UE with the CC group as the granularity, that is, configure all the CCs included in one CC group or multiple CC groups for the UE.

[0127] For the first possible way (configure the CC for the UE with the CC as the granularity):

[0128] Taking all the CCs under one base station being divided into two CC groups, namely CC group1 and CC group2, as an example, and there are no overlapping CCs between CC group1 and CC group2. Specifically, CC group1 includes CC1 to CC4, and CC group2 includes CC5 to CC8.

[0129] See Figure 4As shown, it is assumed that the CCs configured for UE group1 include CC1 and CC4 in CC group1, and CC5 and CC7 in CC group2. Among them, CC1 in CC group1 and CC5 in CC group2 are both used to carry the group common PDCCH. The group common PDCCH on CC1 is used to carry the group UE common information on CC1 to CC4, and the group common PDCCH on CC5 is used to carry the group UE common information on CC5 to CC8.

[0130] Based on this configuration method, the base station sends the first information to each UE in UE group1. Here, taking one UE as an example. The base station sends the first information to the UE, and this first information is used to instruct the UE to detect the group common PDCCH on CC1 and CC5. When the first information is used to instruct the terminal device to detect at least one group common PDCCH on CC1 and CC5, any one of the above methods 1 to 4 can be adopted. Taking the situation described by the above method 2 as an example here, the first information may include the correspondence between the index value of the CC configured for the UE and the index value of the CC carrying the group common PDCCH, and the fields in the group UE common information. Thus, the UE can determine on which CC to detect the group common PDCCH through the first information, and can determine in which field of the group UE common information carried in the detected group common PDCCH the group UE common information of which CC is included. For example, see Table 2 shown.

[0131] Table 2

[0132]

[0133] After receiving the first piece of information, the UE detects the group common PDCCH on CC1 and CC5 based on the first piece of information, receives the group UE common information on the group common PDCCH detected on CC1, obtains the group UE common information of CC1 from field1 of this group UE common information, receives the group UE common information on the group common PDCCH detected on CC1, obtains the group UE common information of CC4 from field4 of this group UE common information, receives the group UE common information on the group common PDCCH detected on CC5, obtains the group UE common information of CC5 from field2 of this group UE common information, receives the group UE common information on the group common PDCCH detected on CC5, and obtains the group UE common information of CC7 from field3 of this group UE common information.

[0134] Through the above solution, the UE only needs to detect the group common PDCCH on the CC indicated by the base station and obtain the group UE common information of the CC configured for the UE from the group common PDCCH, thereby reducing the number of blind detections of the UE and reducing the power consumption of the UE.

[0135] In addition, in the embodiments of the present application, the base station can determine the CC where the group common PDCCH for carrying the group UE common information is located before configuring the CC for the UE. Therefore, when configuring the CC for the UE, it only needs to ensure that the CC configured for this UE includes the CC carrying this group common PDCCH, without having to configure a certain CC for each UE. Thus, compared with Embodiment 1, it can provide flexibility in configuring the CC for the UE.

[0136] Taking the example that all the CCs under a base station are divided into two CC groups, namely CC group1 and CC group2, and there are overlapping CCs between CC group1 and CC group2. Specifically, CC group1 includes CC1 to CC4, CC group2 includes CC4 to CC7, and the common CC between CC group1 and CC group2 is CC4.

[0137] The first configuration method is: carrying the group common PDCCH on the common CC, and the second configuration method is: carrying the group common PDCCH on the non-common CC.

[0138] Regarding the first configuration method in the first possible way, the following description is made for carrying the group common PDCCH on the common CC:

[0139] See Figure 5 As shown, assuming that the CCs configured for UE group1 include CC1, CC4, and CC6, and the CCs allocated to UE group2 include CC2, CC4, and CC6. Among them, CC4 is used to carry the group common PDCCH, and the group common PDCCH on this CC4 is used to carry the group UE common information on CC1 to CC7.

[0140] Based on this configuration method, the base station sends Information 1 to each UE in UE group1 and sends Information 2 to each UE in UE group2. Information 1 is used to instruct UE1 to detect the group common PDCCH on CC4, and Information 2 is used to instruct UE2 to detect the group common PDCCH on CC4. Here, take UE1 in UE group1 as an example. When Information 1 is used to instruct the UE1 to detect at least one group common PDCCH on CC4, any one of the above-mentioned Method 1 to Method 4 can be adopted. Taking the situation described in Method 2 above as an example, Information 1 includes the correspondence between the index value of the CC configured for the UE1 and the index value of the CC carrying the group common PDCCH, and the fields in the group UE common information. Through the first information, UE1 can determine on which CC to detect the group common PDCCH, and can determine in which field of the group UE common information carried on the detected group common PDCCH the group UE common information of which CC is included. For example, see Table 3 below.

[0141] Table 3

[0142]

[0143] After receiving Information 1, UE1 detects the group common PDCCH on CC4 based on Information 1, receives the group UE common information on the group common PDCCH detected on CC4, obtains the group UE common information of CC1 from field1 of the group UE common information, receives the group UE common information on the group common PDCCH detected on CC4, obtains the group UE common information of CC4 from field4 of the group UE common information, receives the group UE common information on the group common PDCCH detected on CC4, and obtains the group UE common information of CC6 from field6 of the group UE common information.

[0144] With the above solution, the UE only needs to detect the group common PDCCH on the CC indicated by the base station, and obtain the group UE common information of the CC configured for the UE from the group common PDCCH, thereby reducing the number of blind detections of the UE and reducing the power consumption of the UE.

[0145] In addition, in the embodiments of the present application, the base station can determine the CC where the group common PDCCH for carrying the group UE common information is located before configuring the CC for the UE. Therefore, when configuring the CC for the UE, it only needs to ensure that the CC configured for the UE includes the CC carrying the group common PDCCH, and it is not necessary to configure a certain CC for each UE. Thus, compared with Embodiment 1, the flexibility of configuring the CC for the UE can be provided.

[0146] Regarding the second configuration method in the first possible method, the case of carrying the group common PDCCH on the non-shared CC is described as follows:

[0147] See Figure 6 As shown, it is assumed that the CCs configured for UE group1 include CC1 and CC4, and the CCs allocated to UE group2 include CC4 and CC5. Among them, CC1 and CC5 are used to carry the group common PDCCH. The group common PDCCH on CC1 is used to carry the group UE common information on CC1 to CC4, and the group common PDCCH on CC5 is used to carry the group UE common information on CC4 to CC7.

[0148] Based on this configuration method, the base station sends Information 1 to each UE in UE group1 respectively. Information 1 is used to instruct the UE in UE group1 to detect the group common PDCCH on CC1. The base station sends Information 2 to each UE in UE group2. Information 2 is used to instruct the UE in UE group2 to detect the group common PDCCH on CC5.

[0149] Taking UE1 in UE group1 and UE2 in UE group2 as examples respectively.

[0150] The base station sends Information 1 to UE1. When Information 1 is used to instruct UE1 to detect at least one group common PDCCH on CC1, any one of the above-mentioned Method 1 to Method 4 can be adopted. Taking the situation described in Method 2 above as an example. Information 1 may include the correspondence between the index value of the CC configured for UE1 and the index value of the CC carrying the group common PDCCH, and the fields in the group UE common information. Thus, UE1 can determine on which CC to detect the group common PDCCH through Information 1, and can determine in which field of the group UE common information carried in the detected group common PDCCH the group UE common information of which CC is included. For example, see Table 4 below.

[0151] Table 4

[0152]

[0153] After receiving Information 1, UE1 detects the group common PDCCH on CC1 based on Information 1, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC1 from field1 of the group UE common information, receives the group UE common information on the detected group common PDCCH, and obtains the group UE common information of CC4 from field4 of the group UE common information.

[0154] The base station sends Information 2 to UE2. When Information 2 is used to instruct UE2 to detect at least one group common PDCCH on CC5, any one of the above-mentioned Method 1 to Method 4 can be adopted. Taking the situation described by the above Method 2 as an example, Information 2 may include the correspondence between the index value of the CC configured for UE2 and the index value of the CC carrying the group common PDCCH, and the fields in the group UE common information. Thus, UE2 can determine on which CC to detect the group common PDCCH through Information 2, and can determine in which field of the group UE common information carried in the detected group common PDCCH the group UE common information of which CC is included. For example, see Table 5 shown below.

[0155] Table 5

[0156]

[0157] After receiving Information 2, UE2 detects the group common PDCCH on CC5 based on Information 2, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC4 from field1 of this group UE common information, receives the group UE common information on the detected group common PDCCH, and obtains the group UE common information of CC5 from field2 of this group UE common information.

[0158] Through the above solution, the UE only needs to detect the group common PDCCH on the CC indicated by the base station and obtain the group UE common information of the CC configured for the UE from the group common PDCCH, thereby reducing the number of blind detections of the UE and reducing the power consumption of the UE.

[0159] In addition, in the embodiments of the present application, the base station may determine the CC where the group common PDCCH for carrying the group UE common information is located before configuring the CC for the UE. Therefore, when configuring the CC for the UE, it only needs to ensure that the CC configured for the UE includes the CC carrying the group common PDCCH, without the need for each UE to be configured with a certain CC. Thus, compared with the first embodiment, the flexibility of configuring the CC for the UE can be provided. Moreover, when there are more common CCs in different CC groups and the CC for carrying the group common PDCCH is not a common CC, when configuring the CC for the UE, compared with the case where the CC for carrying the group common PDCCH is a common CC, the flexibility of configuring the CC for the UE can be further improved, enabling load balancing of the system.

[0160] Taking 4 CC groups as an example below, and there are common CCs between any two CC groups. The CC for carrying the group common PDCCH is not a common CC. How to improve load balancing will be specifically described for the case where the CC for carrying the group common PDCCH is not a common CC.

[0161] For example, referring to the second row shown in Table 6, component carrier a is the common CC among CC group1, CC group2, and CC group3. Referring to the third row shown in Table 6, component carrier b is the common CC among CC group2, CC group3, and CC group4. Referring to the fourth row shown in Table 6, component carrier c is the common CC between CC group1 and CC group2. Referring to the fifth row shown in Table 6, component carrier d is the common CC between CC group3 and CC group4. Among them, the component carrier carrying the group common PDCCH in CC group1 is CC1, the component carrier carrying the group common PDCCH in CC group2 is CC2, the component carrier carrying the group common PDCCH in CC group3 is CC3, and the component carrier carrying the group common PDCCH in CC group4 is CC4. Based on this, when configuring the CC for the UE, when configuring carrier a, b, c, or d, the number of UEs allocated on CC1, CC2, CC3, and CC4 can be considered, which is beneficial to system load balancing. For example, carrier a and CC1 are allocated to UE1, carrier b and CC3 are allocated to UE2, carrier c and CC2 are allocated to UE3, and carrier d and CC4 are allocated to UE4.

[0162] Table 6

[0163] CC1 CC2 CC3 CC4 a CC group1 CC group2 CC group3 b CC group2 CC group3 CC group4 c CC group1 CC group2 d CC group3 CC group4

[0164] The following specifically describes the second possible method (configuring CCs for UEs with the CC group as the granularity).

[0165] Taking all the CCs under a base station being divided into two CC groups as an example, namely CC group1 and CC group2, and there are no overlapping CCs between CC group1 and CC group2. Specifically, CC group1 includes CC1 to CC4, and CC group2 includes CC5 to CC8.

[0166] Refer to Figure 7 As shown, assume that the CCs configured for UE group1 are all the CCs in CC group1, and the CCs configured for UE group2 are all the CCs in CC group2. Among them, CC1 in CC group1 and CC5 in CC group2 are both used to carry the group common PDCCH. The group common PDCCH on CC1 is used to carry the group UE common information on CC1 to CC4, and the group common PDCCH on CC5 is used to carry the group UE common information on CC5 to CC8.

[0167] Based on this configuration method, the base station sends information 1 to each UE in UE group1 respectively. Information 1 is used to instruct the UEs in UE group1 to detect the group common PDCCH on CC1. The base station sends information 2 to each UE in UE group2. Information 2 is used to instruct the UEs in UE group2 to detect the group common PDCCH on CC5.

[0168] Taking UE1 in UE group1 and UE2 in UE group2 as examples respectively.

[0169] The base station sends Information 1 to UE1. When Information 1 is used to instruct UE1 to detect at least one group common PDCCH on CC1, any one of the above-mentioned Method 1 to Method 4 can be adopted. Taking the situation described in Method 2 above as an example, Information 1 may include the correspondence between the index value of the CC configured for UE1 and the index value of the CC carrying the group common PDCCH, and the fields in the group UE common information. Thus, UE1 can determine on which CC to detect the group common PDCCH through Information 1, and can determine in which field of the group UE common information carried in the detected group common PDCCH the group UE common information of which CC is included. For example, see Table 7 below.

[0170] Table 7

[0171]

[0172] After receiving Information 1, UE1 detects the group common PDCCH on CC1 based on Information 1, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC1 from field1 of the group UE common information, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC2 from field2 of the group UE common information, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC3 from field3 of the group UE common information, receives the group UE common information on the detected group common PDCCH, and obtains the group UE common information of CC4 from field4 of the group UE common information.

[0173] The base station sends Information 2 to UE2. When Information 1 is used to instruct UE2 to detect at least one group common PDCCH on CC5, any one of the above-mentioned Method 1 to Method 4 can be adopted. Taking the situation described in Method 2 above as an example. Information 2 may include the index value of the CC configured for UE2 and the index value of the CC carrying the group common PDCCH, as well as the correspondence between the fields included in the group common PDCCH. Thus, UE2 can determine on which CC to detect the group common PDCCH through Information 2, and can determine in which field of the group UE common information carried in the detected group common PDCCH the group UE common information of which CC is included. For example, refer to Table 8 shown below.

[0174] Table 8

[0175]

[0176] After receiving Information 2, UE2 detects the group common PDCCH on CC5 based on Information 2, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC5 from field1 of the group UE common information, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC6 from field2 of the group UE common information, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC7 from field3 of the group UE common information, receives the group UE common information on the detected group common PDCCH, and obtains the group UE common information of CC8 from field4 of the group UE common information.

[0177] With the above solution, the UE only needs to detect the group common PDCCH on the CC indicated by the base station, and obtain the group UE common information configured for the UE from the group common PDCCH, thereby reducing the number of blind detections of the UE and reducing the power consumption of the UE.

[0178] In addition, in the embodiment of the present application, the base station can determine the CC where the group common PDCCH for carrying the group UE common information is located before configuring the CC for the UE. Therefore, when configuring the CC for the UE, it only needs to ensure that the CC configured for the UE includes the CC carrying the group common PDCCH, and it is not necessary to configure a certain CC for each UE. Thus, compared with Embodiment 1, it can provide flexibility in configuring the CC for the UE.

[0179] Taking the example that all the CCs under a base station are divided into two CC groups, namely CC group1 and CC group2, and there are overlapping CCs between CC group1 and CC group2. Specifically, CC group1 includes CC1 to CC4, and CC group2 includes CC4 to CC7. CC group1 is configured for UE group1, and CC group2 is configured for UE group2.

[0180] The first configuration method is to carry the group common PDCCH on the overlapping CC, and the second configuration method is to carry the group common PDCCH on the non - overlapping CC.

[0181] Regarding the first configuration method in the second possible way, the case of carrying the group common PDCCH on the overlapping CC is described as follows:

[0182] See Figure 8As shown, the common CC between CC group1 and CC group2 is CC4. Among them, CC4 is used to carry the group common PDCCH, and the group common PDCCH on this CC4 is used to carry the group UE common information of the CCs in CC group1 and CC group2. Therefore, two group common PDCCHs can be carried in this CC4, which are respectively used to indicate the group UE common information on CC group1 and the group UE common information on CC group2.

[0183] Based on this, the group UE common information carried on the two group common PDCCHs can be scrambled with the identification information of CC group1 and CC group2 respectively. Or, the group UE common information carried on the two group common PDCCHs can be scrambled with the identification information of UE group1 assigned to CC group1 and the identification information of UE group2 assigned to CC group2 respectively. Or, the group UE common information carried on the two group common PDCCHs can be scrambled with the identification information of any one UE assigned to CC group1 and the identification information of any one UE assigned to CC group2 respectively. Or, the group UE common information carried on the two group common PDCCHs can be scrambled with the identification information configured by the network side (it is necessary to inform the UEs in UE group1 assigned to CC group1 and the UEs in UE group2 assigned to CC group2 respectively) to distinguish the group UE common information carried on the two group common PDCCHs.

[0184] Based on this configuration method, the base station sends Information 1 to each UE in UE group1 and Information 2 to each UE in UE group2. Taking UE1 in UE group1 and UE2 in UE group2 as examples below. The base station sends Information 1 to UE1, and this Information 1 is used to instruct UE1 to detect the group common PDCCH on CC4. Specifically, Information 1 may include the correspondence between the index value of the CC configured for the UE1 and the index value of the CC carrying the group common PDCCH, and the correspondence between the fields included in the group UE common information and the identification information used to scramble the group UE common information. Thus, UE1 can determine on which CC to detect the group common PDCCH through Information 1, what identification information to use to descramble the group UE common information, and can determine which field of the descrambled group UE common information includes the group UE common information of which CC. For example, see Table 9 as shown below.

[0185] Table 9

[0186]

[0187] The base station sends Information 2 to UE2, and this Information 2 is used to instruct UE2 to detect the group common PDCCH on CC4. Specifically, Information 2 may include the correspondence between the index value of the CC configured for the UE2 and the index value of the CC carrying the group common PDCCH, and the correspondence between the fields included in the group UE common information and the identification information used to scramble the group UE common information. Thus, UE2 can determine on which CC to detect the group common PDCCH through Information 2, what identification information to use to descramble the group UE common information, and can determine which field of the descrambled group UE common information includes the group UE common information of which CC. For example, see Table 10 as shown below.

[0188] Table 10

[0189]

[0190] Of course, in the first configuration mode under the second possible mode, there may also be only one group common PDCCH on CC4, which is used to carry group UE common information. This group UE common information is used to indicate the group UE common information of the CCs in CC group1 and the group UE common information of the CCs in CC group2. This group UE common information may be scrambled with the identification information shared by CC group1 and CC group2. Alternatively, this group UE common information may be scrambled with the identification information shared by UE group1 assigned to CC group1 and UE group2 assigned to CC group2. Alternatively, this group UE common information may be scrambled with the identification information of any one UE assigned to CC group1 or the identification information of any one UE assigned to CC group2. Alternatively, this group UE common information may be scrambled with the identification information configured by the network side (it is necessary to inform the UEs in UE group1 assigned to CC group1 and the UEs in UE group2 assigned to CC group2 respectively), and the present application does not make specific limitations. In this case, the indication methods of information 1 and information 2 may also adopt any one of the above methods 1 to 4, and the present application does not make specific limitations.

[0191] For the second configuration mode under the second possible mode, the carrying of group common PDCCH on non-shared CCs is described as follows:

[0192] See Figure 9 As shown, the CC shared between CC group1 and CC group2 is CC4. Among them, CC1 and CC5 are used to carry group common PDCCH. The group common PDCCH on CC1 is used to carry the group UE common information on CC1 to CC4, and the group common PDCCH on CC5 is used to carry the group UE common information on CC4 to CC7.

[0193] Based on this configuration method, the base station sends Information 1 to each UE in UE group1 and Information 2 to each UE in UE group2. Information 1 is used to instruct each UE in UE group1 to detect the group common PDCCH on CC1, and Information 2 is used to instruct each UE in UE group2 to detect the group common PDCCH on CC5. Take UE1 in UE group1 as an example below. The base station sends Information 1 to UE1, and this Information 1 is used to instruct UE1 to detect the group common PDCCH on CC1. Specifically, Information 1 may include the correspondence between the index value of the CC configured for the UE and the index value of the CC carrying the group common PDCCH, and the correspondence between the domains included in the group common PDCCH. Thus, UE1 can determine on which CC to detect the group common PDCCH through Information 1, and can determine which domain of the group UE common information includes the group UE common information of which CC. For example, see Table 11 shown below.

[0194] Table 11

[0195]

[0196]

[0197] After receiving Information 1, UE1 detects the group common PDCCH on CC1 based on Information 1, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC1 from field1 of this group UE common information, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC2 from field2 of this group UE common information, receives the group UE common information on the detected group common PDCCH, obtains the group UE common information of CC3 from field3 of this group UE common information, receives the group UE common information on the detected group common PDCCH, and obtains the group UE common information of CC4 from field4 of this group UE common information.

[0198] Through the above solution, the UE only needs to detect the group common PDCCH on the CC indicated by the base station and obtain the group UE common information of the CC configured for the UE from the group common PDCCH, thereby reducing the number of blind detections of the UE and reducing the power consumption of the UE.

[0199] In addition, in the embodiments of the present application, the base station may determine the CC where the group common PDCCH for carrying the group UE common information is located before configuring the CC for the UE. Therefore, when configuring the CC for the UE, it only needs to ensure that the CC configured for the UE includes the CC carrying the group common PDCCH, and it is not necessary to configure a certain CC for each UE. Thus, compared with the first embodiment, it can provide flexibility in configuring the CC for the UE. Moreover, when there are many common CCs in different CC groups and the CC for carrying the group common PDCCH is not a common CC, when configuring the CC for the UE, compared with the case where the CC for carrying the group common PDCCH is a common CC, it can further improve the flexibility in configuring the CC for the UE and balance the load of the system.

[0200] See Figure 10 As shown, it is a schematic flowchart of another information transmission method provided by the embodiments of the present application. The information transmission method includes:

[0201] S1001, the network device generates group UE common information for the M component carriers CC configured for the terminal device;

[0202] S1002, the network device sends the group UE common information of the M CCs configured for the terminal device to the terminal device on at least one group common PDCCH on N CCs, where N is a positive integer and less than or equal to M, and M is a positive integer.

[0203] Among them, the N CCs are N of the M CCs configured for the terminal device.

[0204] S1003, the terminal device detects at least one group common physical downlink control channel PDCCH on N component carriers CC, and the at least one group common PDCCH is used to indicate the group user equipment UE common information of the M CCs configured for the terminal device, where N is a positive integer and less than or equal to M, and M is a positive integer.

[0205] S1004, the terminal device receives the group UE common information of the M CCs configured for the terminal device from the detected at least one group common PDCCH.

[0206] Through the above solution, the terminal device does not need to detect all CCs to obtain the group common PDCCH, and only needs to detect at least one group common PDCCH on N component carriers CC to obtain the group UE common information of the M CCs configured for the terminal device, reducing the number of blind detections of the terminal device and reducing the power consumption of the terminal device.

[0207] In an embodiment of the present application, for which CC the terminal device detects at least one group common PDCCH, one possible implementation is: it can be in a static configuration manner; another possible implementation is: in a semi-static configuration manner. Specifically, before the terminal device detects at least one group common physical downlink control channel PDCCH on N component carriers CC, the network device sends the first information to the terminal device, and the first information is used to indicate that the terminal device detects the at least one group common PDCCH on the N CCs. Thus, after receiving the first information sent by the network device, the terminal device detects the at least one group common PDCCH on N component carriers CC according to the first information.

[0208] When in the static configuration manner: all the CCs occupied by a base station form a CC group, that is, all the CCs form a CC group. In this scenario, it can be statically configured that N CCs in the CC group are used to carry at least one group common PDCCH. All the CCs included in a base station are multiple CC groups. The base station can configure that one or more CCs in each CC group are used to carry at least one group common PDCCH, and the at least one group common PDCCH is used to carry the group UE common information of all the CCs in this CC group. When there are common CCs between different CC groups, the group common PDCCH can be carried by the common CCs, and the group common PDCCH is used to carry the group UE common information of the CCs included in different CC groups. Of course, the group common PDCCH can also be carried by non-common CCs, and one or more in each CC group are used to carry the group common PDCCH, and the group common PDCCH carries the group UE common information of the CCs included in this CC group. When there are common CCs between different CC groups, one or more in each CC group are used to carry the group common PDCCH, and the group common PDCCH carries the group UE common information of the CCs included in this CC group. Specifically, when determining on which CC of the terminal device to detect at least one group common PDCCH, the specific configuration method can refer to Figures 4 to 9 the configuration method described in the embodiment shown, which will not be elaborated here.

[0209] Which CC the terminal device is instructed to detect at least one group common PDCCH through semi-static configuration, and the specific indication method can be referred to Figures 4 to 9 the indication method described in the embodiments shown, which will not be elaborated here.

[0210] Based on the same inventive concept as the corresponding method embodiment described above Figures 4 to 9 the embodiment of the present application provides an information transmission device, which is applied to a network device. Refer to Figure 11 as shown, the device includes:

[0211] A generating module 1101, configured to generate first information;

[0212] A sending module 1102, configured to send the first information to the terminal device, where the first information is used to instruct the terminal device to detect at least one group common PDCCH on N CCs, N is a positive integer and less than or equal to M, and M is equal to the number of CCs configured for the terminal device, and M is a positive integer.

[0213] Optionally, the N CCs are N of the M CCs configured for the terminal device.

[0214] Optionally, the first information includes index values of the N CCs.

[0215] Optionally, the group common PDCCH is used to indicate group user equipment UE common information for the M CCs configured for the terminal device.

[0216] Optionally, the group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

[0217] Optionally, the first information may include: the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the domains included in the group UE common information; or, the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the domains in the group UE common information, and the identification information used to scramble the group UE common information.

[0218] Optionally, the group UE common information is scrambled using the identification information of the CC group where the N CCs are located, or the group UE common information is scrambled using the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled using the identification information of the terminal device.

[0219] Optionally, the sending unit is specifically configured to send the first information to the terminal device through a downlink control information DCI signaling, a radio resource control RRC signaling, or a cell broadcast signaling.

[0220] Based on the same inventive concept as the corresponding method embodiment described above Figure 10 The embodiment of the present application provides an information transmission device, which is applied to a network device. Referring to Figure 12 as shown, the device includes:

[0221] A generating module 1201, configured to generate group user equipment UE common information of M component carriers CC configured for the terminal device;

[0222] A sending module 1202, configured to send the group UE common information of the M CCs configured for the terminal device to the terminal device on at least one group common PDCCH on N component carriers CC, where N is a positive integer and less than or equal to M, and M is a positive integer.

[0223] Optionally, the N CCs are N of the M CCs configured for the terminal device.

[0224] Optionally, the sending module 1202 is further configured to send first information, where the first information is used to instruct the terminal device to detect the at least one group common PDCCH on the N CCs.

[0225] Optionally, the first information includes index values of the N CCs.

[0226] Optionally, the group common PDCCH is scrambled with identification information of the CC group where the at least one CC is located, or the group UE common information is scrambled with identification information of the terminal device group where the terminal device is located, or the group common PDCCH is scrambled with identification information of the terminal device.

[0227] Optionally, the first information further includes: the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the fields in the group UE common information; or, the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the fields in the group UE common information, and the identification information used for scrambling the group UE common information.

[0228] Optionally, when sending the first information to the terminal device, the sending module 1202 is specifically configured to: send the first information to the terminal device through a downlink control information DCI signaling, a radio resource control RRC signaling, or a cell broadcast signaling.

[0229] Optionally, the group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

[0230] The division of modules in the embodiments of this application is illustrative. It is only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of this application, each functional module may be integrated in a processor, may exist separately physically, or two or more modules may be integrated in one module. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0231] As Figure 13 shown, the network device may include a transceiver 1310, a processor 1320, and a memory 1330. The above Figure 11 or Figure 12 shown generation module and transmission module can both be controlled and implemented by the processor 1320. The processor 1320 transmits and receives data through the transceiver 1310 and is used to implement Figures 3 to 10 the method performed by the base station described in the corresponding embodiment. During the implementation process, each step of the processing flow can be completed by the integrated logic circuit in hardware in the processor 1320 or by instructions in software form. The processor 1320 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of this application can be directly implemented by the execution of the hardware processor, or can be implemented by the combination of hardware and software modules in the processor. The program code for the processor 1320 to implement the above method may be stored in the memory 1330. The memory 1330 may be a non-volatile memory, such as a hard disk or a solid-state drive, etc., or may also be a volatile memory, such as a random access memory. The memory 1330 is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0232] In the embodiments of this application, the specific connection medium between the above transceiver 1310, processor 1320, and memory 1330 is not limited. In the embodiments of this application Figure 13 it is shown that the memory 1330, the processor 1320, and the transceiver 1310 are connected through a bus 1340. The bus is in Figure 13is represented by a thick line, and the connection manners between other components are only for illustrative purposes and are not limited thereto. The bus may be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 13 is only represented by a thick line in the figure, but it does not mean that there is only one bus or one type of bus.

[0233] Based on the same inventive concept as the Figures 3 to 9 embodiment shown above, an embodiment of the present application further provides an information transmission device, which is applied to a terminal device. Refer to Figure 14 as shown in the figure, the device includes:

[0234] A receiving module 1401, configured to receive first information sent by a network device, where the first information is used to instruct the terminal device to detect at least one group common physical downlink control channel PDCCH on N component carriers CC, N is a positive integer and less than or equal to M, and M is equal to the number of CCs configured for the terminal device, and M is a positive integer;

[0235] A detecting module 1402, configured to detect the at least one group common physical downlink control channel PDCCH on the N CCs according to the first information.

[0236] Optionally, the N CCs are N of the M CCs configured for the terminal device.

[0237] Optionally, the first information includes index values of the N CCs.

[0238] Optionally, the group common PDCCH is used to indicate group user equipment UE common information of the M CCs configured for the terminal device;

[0239] The detecting module 1402 is specifically configured to obtain, according to the first information, group UE common information of the M CCs configured for the terminal device carried on the at least one group common PDCCH on the N CCs.

[0240] Optionally, the group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

[0241] Optionally, the first information includes: the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the fields in the group UE common information; or, the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the fields in the group UE common information, and the identification information used to scramble the group UE common information.

[0242] Optionally, the group UE common information is scrambled with the identification information of the CC group to which the at least one CC belongs, or the group UE common information is scrambled with the identification information of the terminal device group to which the terminal device belongs, or the group UE common information is scrambled with the identification information of the terminal device.

[0243] Optionally, the receiving module 1401 is specifically configured to receive a downlink control information DCI signaling sent by the network device, where the DCI signaling carries the first information; or receive a radio resource control RRC signaling sent by the network device, where the RRC signaling carries the first information; or receive a cell broadcast signaling sent by the network device, where the RRC signaling carries the first information.

[0244] Based on the same inventive concept as the above Figure 10 illustrated embodiment, an information transmission device is further provided in an embodiment of the present application. The device is applied to a terminal device. Refer to Figure 15 illustrated. The device includes:

[0245] A detection module 1501, configured to detect at least one group common physical downlink control channel PDCCH on N component carriers CC, where the at least one group common PDCCH is used to indicate group user equipment UE common information of M CCs configured for the terminal device, N is a positive integer and less than or equal to M, and M is a positive integer;

[0246] A receiving module 1502, configured to receive group UE common information of M CCs configured for the terminal device from the detected at least one group common PDCCH.

[0247] Optionally, the N CCs are N of the M CCs configured for the terminal device.

[0248] Optionally, the receiving module 1502 is further configured to: receive first information sent by the network device, where the first information is used to instruct the terminal device to detect the at least one group common PDCCH on the N CCs; the detection module 1501 is specifically configured to detect, by the terminal device, the at least one group common PDCCH on N component carriers CC according to the first information.

[0249] Optionally, the first information includes index values of the N CCs.

[0250] Optionally, the group UE common information is scrambled with the identification information of the CC group to which the N CCs belong, or the group UE common information is scrambled with the identification information of the terminal device group to which the terminal device belongs, or the group UE common information is scrambled with the identification information of the terminal device.

[0251] Optionally, the first information further includes: the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the fields in the group UE common information; or, the correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the fields in the group UE common information, and the identification information used for scrambling the group UE common information.

[0252] Optionally, when receiving the first information sent by the network device, the receiving module 1502 is specifically configured to receive the downlink control information DCI signaling sent by the network device, where the DCI signaling carries the first information; or, receive the radio resource control RRC signaling sent by the network device, where the RRC signaling carries the first information; or, receive the cell broadcast signaling sent by the network device, where the RRC signaling carries the first information.

[0253] Optionally, the group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

[0254] The division of modules in the embodiments of the present application is illustrative. It is only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of the present application, each functional module may be integrated in a processor, may exist separately physically, or two or more modules may be integrated in one module. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0255] As Figure 16 shown, the terminal device may include a transceiver 1610, a processor 1620, and a memory 1630. The above Figure 14 or Figure 15 shown receiving module 1502 and detection module 1501 can both be implemented by the processor 1620. The processor 1620 transmits and receives data through the transceiver 1610 and is used to implement Figures 3 to 10The method performed by the terminal device or UE described in [reference]. During implementation, each step of the processing flow can be completed by the integrated logic circuit in the hardware of the processor 1620 or the instructions in the form of software. The processor 1620 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed by the hardware processor, or executed by a combination of the hardware and software modules in the processor. The program code for the processor 1620 to implement the above method can be stored in the memory 1630. The memory 1630 can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory, such as a random-access memory (RAM). The memory 1630 is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0256] In the embodiments of the present application, the specific connection medium between the transceiver 1610, the processor 1620, and the memory 1630 is not limited. In the embodiments of the present application Figure 16 it is shown that the memory 1630, the processor 1620, and the transceiver 1610 are connected through the bus 1640. The bus is represented by a thick line in Figure 16 For the connection manners between other components, only a schematic illustration is provided and is not to be taken as a limitation. The bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of simplicity of representation, Figure 16 only a thick line is used to represent it in [reference], but it does not mean that there is only one bus or one type of bus.

[0257] Based on the above embodiments, the embodiments of the present application also provide a computer storage medium. The software program stored in the storage medium can implement the method provided in the above embodiments when read and executed by one or more processors. The computer storage medium can include: various media such as a USB flash drive, a mobile hard disk, a read-only memory, a random-access memory, a magnetic disk, or an optical disc that can store program code.

[0258] Based on the above embodiments, the embodiments of the present application further provide a chip system. The chip system can be composed of chips or can include chips and other discrete devices. The chip system can be applied to network devices or can be applied to terminal devices. When applied to network devices, the chip system includes a processor for supporting a distributed unit, a centralized unit, and the network device to implement the functions involved in the above embodiments. For example, to generate or process the data and / or information involved in the above methods. Optionally, the chip system further includes a memory for storing the necessary program instructions and data of the distributed unit, the centralized unit, and the terminal device. It should be understood that the data and / or information processed by the chip can be received from the terminal device, and the processed data and / or information can also be sent to the terminal device. When applied to terminal devices, the chip system includes a processor for supporting a distributed unit, a centralized unit, and the terminal device to implement the functions involved in the above embodiments. For example, to generate or process the data and / or information involved in the above methods. Optionally, the chip system further includes a memory for storing the necessary program instructions and data of the distributed unit, the centralized unit, and the terminal device. It should be understood that the data and / or information processed by the chip can be received from the network device, and the processed data and / or information can also be sent to the network device.

[0259] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0260] The present application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more of the flows or multiple flows and / or blocks Figure 1 one or more of the blocks or multiple blocks.

[0261] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction means that implements the function specified in one or more of the processes and / or blocks Figure 1 one or more of the processes and / or blocks Figure 1 specified in the block or blocks.

[0262] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the function specified in one or more of the processes and / or blocks Figure 1 one or more of the processes and / or blocks Figure 1 specified in the block or blocks.

[0263] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

1. An information transmission method, characterized in that, including: A network device generates first information; The network device sends the first information to a terminal device, where the first information is used to instruct the terminal device to detect at least one group common physical downlink control channel (PDCCH) on N component carriers (CCs), N is a positive integer and less than or equal to M, M is equal to the number of CCs configured for the terminal device, and M is a positive integer; the group common PDCCH is used to indicate group user equipment (UE) common information for the M CCs configured for the terminal device; The group UE common information is scrambled using the identification information of the CC group where the N CCs are located, or the group UE common information is scrambled using the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled using the identification information of the terminal device.

2. The method according to claim 1, characterized in that, The N CCs are N of the M CCs configured for the terminal device.

3. The method according to claim 1 or 2, characterized in that, The index values of the N CCs are included in the first information.

4. The method according to claim 1 or 2, characterized in that, The group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

5. The method according to claim 1, characterized in that, The first information includes: The correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the fields in the group UE common information; or, The correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the fields in the group UE common information, and the identification information used to scramble the group UE common information.

6. The method according to claim 1 or 2, characterized in that, The network device sending the first information to the terminal device includes: The network device sends the first information to the terminal device through downlink control information (DCI) signaling, radio resource control (RRC) signaling, or cell broadcast signaling.

7. An information transmission method, characterized in that, including: The terminal device receives the first information sent by the network device, where the first information is used to instruct the terminal device to detect at least one group common physical downlink control channel (PDCCH) on N component carriers (CCs), N is a positive integer and less than or equal to M, M is equal to the number of CCs configured for the terminal device, and M is a positive integer; the group common PDCCH is used to indicate group user equipment (UE) common information for the M CCs configured for the terminal device; The terminal device obtains, according to the first information, the group UE common information for the M CCs configured for the terminal device carried on the at least one group common PDCCH on the N CCs; the group UE common information is scrambled using the identification information of the CC group where the N CCs are located, or the group UE common information is scrambled using the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled using the identification information of the terminal device.

8. The method according to claim 7, characterized in that, The N CCs are N of the M CCs configured for the terminal device.

9. The method according to claim 7 or 8, characterized in that, The index values of the N CCs are included in the first information.

10. The method according to claim 9, characterized in that, The group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

11. The method according to claim 7, characterized in that, The first information includes: The correspondence relationship between the index values of the M CCs configured for the terminal device, the index values of the N CCs, and the fields in the group UE common information; or, The correspondence relationship between the index values of the M CCs configured for the terminal device, the index values of the N CCs, the fields in the group UE common information, and the identification information used to scramble the group UE common information.

12. The method according to claim 7 or 8, characterized in that, The terminal device receives first information sent by a network device, including: The terminal device receives a downlink control information DCI signaling sent by the network device, and the DCI signaling carries the first information; or, The terminal device receives a radio resource control RRC signaling sent by the network device, and the RRC signaling carries the first information; or, The terminal device receives a cell broadcast signaling sent by the network device, and the cell broadcast signaling carries the first information.

13. An information transmission method, characterized in that, Including: The network device generates group user equipment UE common information for M component carriers CCs configured for the terminal device; The network device sends the group UE common information of the M CCs configured for the terminal device to the terminal device on at least one group common physical downlink control channel PDCCH on N component carriers CCs, where N is a positive integer and less than or equal to M, and M is a positive integer.

14. The method according to claim 13, wherein, The N CCs are N of the M CCs configured for the terminal device.

15. The method according to claim 13, wherein, The method further includes: The network device sends first information, and the first information is used to instruct the terminal device to detect the at least one group common PDCCH on the N CCs.

16. The method according to claim 15, wherein, The index values of the N CCs are included in the first information.

17. The method according to claim 15, wherein, The group UE common information is scrambled using the identification information of the CC group where the N CCs are located, or the group UE common information is scrambled using the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled using the identification information of the terminal device.

18. The method according to claim 15, wherein, The first information includes: The correspondence relationship between the index values of the M CCs configured for the terminal device, the index values of the N CCs, and the fields in the group UE common information; or, The correspondence relationship between the index values of the M CCs configured for the terminal device, the index values of the N CCs, the fields in the group UE common information, and the identification information used to scramble the group UE common information.

19. The method according to claim 16 or 17, wherein, The network device sends the first information to the terminal device, including: The network device sends the first information to the terminal device through downlink control information DCI signaling or radio resource control RRC signaling or cell broadcast signaling.

20. The method according to any one of claims 13-14, 16-17, wherein, The group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

21. An information transmission method, wherein, Including: The terminal device detects at least one group common physical downlink control channel PDCCH on N component carriers CCs, and the at least one group common PDCCH is used to indicate the group user equipment UE common information of the M CCs configured for the terminal device, where N is a positive integer and less than or equal to M, and M is a positive integer; The terminal device receives group UE common information for M CCs configured for the terminal device from at least one set of common PDCCHs detected.

22. The method according to claim 21, wherein, The N CCs are N of the M CCs configured for the terminal device.

23. The method according to claim 21, wherein, Before the terminal device detects at least one set of common physical downlink control channels (PDCCHs) on N component carriers (CCs), the method further includes: The terminal device receives first information sent by a network device, where the first information is used to indicate that the terminal device detects the at least one set of common PDCCHs on the N CCs; The terminal device detecting at least one set of common physical downlink control channels (PDCCHs) on N component carriers (CCs) includes: The terminal device detecting the at least one set of common PDCCHs on the N CCs according to the first information.

24. The method according to claim 23, wherein, The index values of the N CCs are included in the first information.

25. The method according to claim 23, wherein, The group UE common information is scrambled using the identification information of the CC group where the N CCs are located, or the group UE common information is scrambled using the identification information of the terminal device group where the terminal device is located, or the group UE common information is scrambled using the identification information of the terminal device.

26. The method according to claim 25, wherein, The first information includes: The correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, and the fields in the group UE common information; or, The correspondence between the index values of the M CCs configured for the terminal device and the index values of the N CCs, the fields in the group UE common information, and the identification information used to scramble the group UE common information.

27. The method according to claim 23, wherein, The terminal device receiving the first information sent by the network device includes: The terminal device receives downlink control information (DCI) signaling sent by the network device, and the DCI signaling carries the first information; or, The terminal device receives radio resource control (RRC) signaling sent by the network device, and the RRC signaling carries the first information; or, The terminal device receives cell broadcast signaling sent by the network device, and the cell broadcast signaling carries the first information.

28. The method according to any one of claims 21 to 25, characterized in that, The group UE common information includes at least one of time domain unit format information, frequency domain resource information of the group UE, and priority occupancy indication information.

29. A network device, characterized in that, It includes a transceiver, a processor, and a memory, where: The memory stores software programs; The transceiver is used for sending and receiving data; The processor is used to call and execute the software programs stored in the memory, and realizes the method according to any one of claims 1 to 6, 13 to 20 by sending and receiving data through the transceiver.

30. A terminal device, characterized in that, It includes a transceiver, a processor, and a memory, where: The memory stores software programs; The transceiver is used for sending and receiving data; The processor is used to call and execute the software programs stored in the memory, and realizes the method according to any one of claims 7 to 12, 21 to 28 by sending and receiving data through the transceiver.

31. A chip, characterized in that, The chip is connected to the memory and is used to read and execute the software programs stored in the memory to realize the method according to any one of claims 1 to 28.

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