Communication method and device

Abstract

According to the communication method and device, new indication information is transmitted by multiplexing an existing DCI format, the indication information is different from the existing DCI in content, and the DCI with different contents is transmitted through different time-frequency resources. Therefore, the new information does not need to be indicated by adopting system information, and the transmission time consumption of the DCI is far less than that of the system information, so that the information indication efficiency is improved, namely the flexibility of the new indication information is improved. Furthermore, the DCI with different contents is transmitted on different time-frequency resources, so that the function decoupling of the new DCI and the existing DCI can be realized, and the use efficiency of the DCI is improved.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] With the gradual development of communication systems, the energy consumption of network equipment has received increasing attention. According to a report by the GSMA (Global System for Mobile Communications Association), the energy cost of mobile networks accounts for approximately 23% of the total cost for operators. The majority of energy consumption comes from the radio access network, particularly active antenna units (AAUs) and building baseband units (BBUs), which account for over 90% of the total energy cost. Data centers and fiber optic transmission account for a smaller share. Therefore, the 3rd Generation Partnership Project (3GPP) established the Network Energy Saving (NES) project, aiming to research methods for saving network energy consumption.

[0003] Terminal devices access the radio access network randomly through physical random access channel (PRACH) resources, which can be configured by network devices. For example, network devices can instruct terminal devices to configure PRACH resources via higher-layer instructions such as system information blocks (SIBs), specifically SIB1 messages. Network devices can reduce power consumption by extending the PRACH period, i.e., extending the PRACH resource configuration period. However, extending the PRACH period results in a longer waiting time for terminal devices to access the network. Therefore, 3GPP discussions proposed configuring additional PRACH resources for NES-enabled terminal devices, in addition to the PRACH resources reserved for traditional terminal devices (i.e., those not supporting NES functionality), to achieve dynamic adjustment of PRACH resources in the time domain to adapt to dynamic load changes.

[0004] Additional PRACH resource configuration can be achieved through semi-static signaling, which is issued via SIB1. SIB1 is a system information-related message with a long transmission period, typically on the order of milliseconds. This results in a long adjustment period for PRACH resources, making it inflexible. Furthermore, load changes (i.e., changes in the number of terminal devices) are a gradual process, which may require frequent adjustments to PRACH resources to adapt to dynamically changing loads, still resulting in high power consumption. Summary of the Invention

[0005] In view of this, this application provides a communication method and apparatus that uses downlink control information (DCI) to indicate information about newly added functions. The disclosed technical solution is as follows:

[0006] Firstly, this application provides a communication method applied to a network device. The method includes: sending a first DCI (i.e., an existing DCI), which indicates first information to a terminal device; and sending a second DCI (i.e., a new DCI), which indicates second information to the terminal device. The second information is different from the first information, the format of the second DCI is the same as that of the first DCI, and the second receiving location information of the second DCI is different from the first receiving location information of the first DCI. Here, DCI is a lightweight message that enables real-time control and management. Therefore, using DCI to indicate information can shorten the information indication cycle and improve the flexibility of information indication. Furthermore, this scheme reuses the existing DCI format to carry the indication information and transmits it to the terminal device through time-frequency resources different from the existing DCI, thereby decoupling the functions of the new DCI from the existing DCI and improving the efficiency of DCI usage.

[0007] In one possible implementation of the first aspect, the second receiving location information of the second DCI differs from the first receiving location information of the first DCI, including that the time domain location of the second DCI does not overlap with the time domain location of the first DCI. This reduces the complexity of information indication by distinguishing DCIs with the same format but different content only through their different time domain locations.

[0008] In another possible implementation of the first aspect, the temporal location of the second DCI does not overlap with the temporal location of the first DCI, including: at least one of the frame offset, subframe offset, slot offset, and OFDM symbol location of the search space of the second DCI does not overlap with the search space of the first DCI. That is, by configuring different SearchSpaces, different temporal resources are used to distinguish DCIs with the same format but different content, thereby reducing the complexity of DCI design.

[0009] In another possible implementation of the first aspect, the first DCI includes DCI1_0, DCI2_7, and DCI2_9.

[0010] In another possible implementation of the first aspect, the first DCI is DCI1_0 scrambled with SI-RNTI; the time-domain position of the second DCI does not overlap with the time-domain position of the first DCI, including: the time-domain position of the second DCI does not overlap with the time-domain position of the first DCI at the current time slot position of SIB1. This ensures that the time-domain position of the new DCI is different from that of an existing DCI with the same format at the current time slot position. In another possible implementation of the first aspect, the time-domain position of the second DCI does not overlap with the time-domain position of the first DCI, including: the time-domain position of the second DCI is the next time slot position among all time slot candidate positions for receiving the PDCCH scheduling SIB1, calculated based on the index of the last synchronization information block. This ensures that the new DCI is different from all possible time slot positions for transmitting DCI1_0 scrambled with SI-RNTI, improving the success rate of new DCI transmission.

[0011] In another possible implementation of the first aspect, the first DCI is DCI2_7; the temporal position of the second DCI does not overlap with that of the first DCI, including: the frame-level offset corresponding to the second DCI is different from the frame-level offset of DCI2_7; and / or, the subframe offset of the second DCI is different from the subframe offset of DCI2_7; and / or, the time slot offset of the second DCI is different from the time slot offset of DCI2_7; and / or, the symbol-level offset corresponding to the second DCI is different from the symbol-level offset of DCI2_7. Therefore, when the new DCI reuses the existing DCI2_7 format, the new DCI can be distinguished from the existing DCI2_7 simply by configuring any temporal position of the new DCI to be different from that of DCI2_7, thus improving the flexibility of the new DCI design.

[0012] In another possible implementation of the first aspect, the first DCI is DCI2_9; the time domain position of the second DCI does not overlap with the time domain position of the first DCI, including: the time domain position of the first DCI is the active period of discontinuous transmission and discontinuous reception of the cell, and the time domain position of the second DCI is the inactive period of discontinuous transmission and discontinuous reception of the cell.

[0013] In another possible implementation of the first aspect, the second receiving location information of the second DCI differs from the first receiving location information of the first DCI, including: the frequency domain location of the second DCI differs from the frequency domain location of the first DCI. In this way, DCIs with the same format but different content are distinguished only by their different frequency domain locations, reducing the complexity of indicating new information via DCI.

[0014] In another possible implementation of the first aspect, the frequency domain position of the second DCI differs from that of the first DCI, including: the CORESET corresponding to the second DCI is different from the CORESET of the first DCI. This difference in frequency domain position can be achieved by configuring the CORESET of the new DCI to be different from that of the existing DCI.

[0015] In another possible implementation of the first aspect, before sending the second DCI, the method further includes: sending first indication information, the first indication information being used to indicate to the terminal device the format of the second DCI and the first receiving location information of the second DCI.

[0016] In another possible implementation of the first aspect, the second DCI is used to indicate information on the dynamic adjustment of common channel resources.

[0017] In another possible implementation of the first aspect, the information used for indication in the second DCI includes at least one of the following: dynamic adjustment information for PRACH resources, dynamic adjustment information for SSB resources, and dynamic adjustment information for paging resources. Thus, using the aforementioned dynamic resource adjustment information in the DCI can shorten the resource dynamic adjustment cycle and improve the flexibility of resource dynamic adjustment. Furthermore, this scheme reuses the existing DCI format to carry the indication information and transmits it to the terminal device through time-frequency resources different from the existing DCI, thereby decoupling the new DCI from the existing DCI functions and improving the efficiency of DCI utilization.

[0018] In another possible implementation of the first aspect, the second DCI is used to indicate at least two different pieces of information. This improves the efficiency of DCI usage.

[0019] In another possible implementation of the first aspect, the format of the second DCI is the same as that of the first DCI, including: the scrambling identifier of the first DCI is the same as that of the first DCI, and the number of bits of the second DCI is the same as that of the first DCI.

[0020] Secondly, this application also provides a communication method applied to a terminal device, the method comprising: receiving a first DCI based on first time-frequency location information, and parsing the first DCI based on a first parsing method to obtain first information; receiving a second DCI based on second time-frequency location information, and parsing the second DCI based on a second parsing method to obtain second information, wherein the second information is different from the first information, the second time-frequency location information is different from the first time-frequency location information, and the format of the second DCI is the same as the format of the first DCI.

[0021] In one possible implementation of the second aspect, the second time-frequency location information is different from the first time-frequency location information, including: the time-domain location of the second DCI does not overlap with the time-domain location of the first DCI.

[0022] In another possible implementation of the second aspect, the temporal location of the second DCI does not overlap with the temporal location of the first DCI, including: at least one of the frame offset, subframe offset, slot offset and OFDM symbol location of the search space of the second DCI and the first DCI does not overlap.

[0023] In another possible implementation of the second aspect, the first DCI includes DCI1_0, DCI2_7, and DCI2_9.

[0024] In another possible implementation of the second aspect, the first DCI is DCI1_0 scrambled with SI-RNTI; the time domain position of the second DCI does not overlap with the time domain position of the first DCI, including: the time domain position of the second DCI does not overlap with the time domain position of the first DCI under the current time domain position of SIB1.

[0025] In another possible implementation of the second aspect, the time domain position of the second DCI does not overlap with the time domain position of the first DCI, including: the time domain position of the second DCI is the next time slot position among all time slot candidate positions for receiving the PDCCH scheduled for SIB1, calculated based on the index of the last synchronization information block.

[0026] In another possible implementation of the second aspect, the first DCI is DCI2_7; the temporal position of the second DCI does not overlap with the temporal position of the first DCI, including: the frame-level offset corresponding to the second DCI is different from the frame-level offset of DCI2_7; and / or, the subframe offset of the second DCI is different from the subframe offset of DCI2_7; and / or, the time slot offset of the second DCI is different from the time slot offset of DCI2_7; and / or, the symbol-level offset corresponding to the second DCI is different from the symbol-level offset of DCI2_7.

[0027] In another possible implementation of the second aspect, the first DCI is DCI2_9; the time domain position of the second DCI does not overlap with the time domain position of the first DCI, including: the time domain position of the first DCI is the active period of the cell discontinuous transmission and discontinuous reception function, and the time domain position of the second DCI is the deactivation period of the cell discontinuous transmission and discontinuous reception function.

[0028] In another possible implementation of the second aspect, the frequency domain location of the second DCI does not overlap with the frequency domain location of the received first DCI.

[0029] In another possible implementation of the second aspect, the frequency domain position of the second DCI does not overlap with the frequency domain position of the received first DCI, including: the CORESET corresponding to the second DCI does not overlap with the CORESET of the first DCI.

[0030] In another possible implementation of the second aspect, the information used by the second DCI to indicate includes at least one of the following: dynamic adjustment information of PRACH resources, dynamic adjustment information of SSB resources, and dynamic adjustment information of paging resources.

[0031] In another possible implementation of the second aspect, the second DCI is used to indicate at least two different pieces of information.

[0032] Thirdly, this application also provides another communication method applied to a network device. The method includes: sending first indication information, which instructs a first terminal device to receive location information of a DCI; sending a DCI based on the location information, the DCI including existing indication information and newly added indication information, wherein the bits in the DCI used to carry the newly added indication information (i.e., newly added information indication fields in the DCI) are determined by at least one of the following methods: remaining bits determined according to the total payload of the DCI and the payload of existing information indication fields, the total payload being indicated by second indication information, existing information indication fields being used to carry existing indication information, and the total payload being greater than the payload of existing information indication fields; all bits in the DCI after the designated indication field, the designated indication field being the indication field in the existing information indication fields configured with a specific value; and reserved bits in the DCI. In this way, the remaining bits in the existing DCI can be used directly to transmit new indication information without using system messages to indicate new indication information. The transmission time of the DCI is much shorter than that of system messages, thus improving the indication efficiency of new indication information, i.e., increasing the flexibility of new indication information.

[0033] In one possible implementation of the third aspect, the DCI is DCI1_0 scrambled with SI-RNTI, and the designated indication field is the frequency domain indication field of DCI1_0 with all bits set to zero. The bits in the DCI used to carry new indication information include all bits after the frequency domain indication field of DCI1_0 with all bits set to zero. In this way, all bits located after the frequency domain resource indication field can be used to carry new cell content, that is, the existing cell indication fields in the DCI located after the frequency domain resource indication field can carry new indication information, thereby improving the bit utilization of DCI1_0. In addition, when the UE receives DCI1_0 and parses the content of the frequency domain resource indication field to be zero, it will not trigger the process of reading system messages, thereby reducing the power consumption generated by reading system messages.

[0034] Fourthly, this application also provides a communication method applied to a terminal device. The method includes: receiving first indication information and parsing the first indication information to obtain the receiving location information of a DCI; receiving a DCI sent by a network device based on the receiving location information, wherein the DCI includes existing indication information and newly added indication information, and the bits in the DCI used to carry the newly added indication information are determined by at least one of the following methods: remaining bits determined according to the total payload number of the DCI and the payload number of existing information indication fields, wherein the total payload number is indicated by second indication information, the existing information indication fields are used to carry existing indication information, and the total payload number is greater than the payload number of existing information indication fields; all bits in the DCI after the specified indication field, wherein the specified indication field is the indication field in the existing information indication fields configured with a specific value; reserved bits in the DCI; wherein the parsing method of the newly added indication information in the DCI is different from that of the existing indication information.

[0035] In one possible implementation of the fourth aspect, DCI is DCI1_0 scrambled with SI-RNTI, and the specified indication field is the frequency domain indication field of DCI1_0 with all bits set to zero; the bits in DCI used to carry the newly added indication information include: all bits after the frequency domain indication field of DCI1_0 with all bits set to zero.

[0036] Fifthly, this application also provides an electronic device, which includes: one or more processors, a memory, and a touch screen; the memory is used to store program code; the processor is used to run the program code, enabling the electronic device to implement a communication method as described in any of the possible implementations of the first to fourth aspects above.

[0037] Sixthly, this application also provides a computer-readable storage medium having instructions stored thereon, which, when executed on an electronic device, cause the electronic device to perform a communication method as described in any of the possible implementations of the first to fourth aspects above.

[0038] In a seventh aspect, this application also provides a chip system, comprising: at least one processor and an interface, the interface being used to receive code instructions and transmit them to the at least one processor; the at least one processor executing the code instructions to implement a communication method as described in any of the possible implementations of the first to fourth aspects above.

[0039] Eighthly, this application also provides a computer program product having instructions stored thereon, which, when the computer program product is run on an electronic device, cause the electronic device to implement a communication method as described in any of the possible implementations of the first to fourth aspects above. Attached Figure Description

[0040] Figure 1This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0041] Figure 2 This is a flowchart of a communication method provided in an embodiment of this application;

[0042] Figure 3a This is a schematic diagram showing that the search spaces of the first DCI and the existing DCI provided in the embodiments of this application do not overlap;

[0043] Figure 3b This is a schematic diagram showing that the first DCI and DCI1_0 do not overlap in the time domain, as provided in the embodiments of this application;

[0044] Figure 4 This is a schematic diagram showing that the PEI-O time domains of the first DCI provided in this application embodiment do not overlap with those of an existing DCI;

[0045] Figure 5 This is a schematic diagram illustrating the transmission of different types of indication information within the same DCI, as provided in an embodiment of this application.

[0046] Figure 6 This is a schematic diagram showing that the first DCI provided in the embodiments of this application and the existing DCI do not overlap in the frequency domain;

[0047] Figure 7 This is a schematic diagram showing that the first DCI provided in the embodiments of this application and the existing DCI do not overlap in the time domain and frequency domain;

[0048] Figure 8 This is a schematic diagram illustrating how the remaining bits of a DCI can be used to carry indication information, as provided in an embodiment of this application.

[0049] Figure 9 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0050] Figure 10 This is a schematic diagram of another communication device provided in an embodiment of this application;

[0051] Figure 11 This is a schematic diagram of the chip structure provided in the embodiments of this application. Detailed Implementation

[0052] The terms "first," "second," and "third," etc., used in this application specification, claims, and drawings are used to distinguish different objects, not to limit a specific order.

[0053] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0054] The technical solutions of this application can be applied to various communication systems, such as 3GPP communication systems, fourth-generation (4G) mobile communication technologies such as Long Term Evolution (LTE) systems, fifth-generation (5G) mobile communication systems, New Radio (NR) communication systems (which are wireless networks of 5G systems), and New Radio Vehicle-to-Everything (NR V2X) systems. They can also be applied to systems with hybrid LTE and 5G networks, or non-terrestrial network (NTN) systems, device-to-device (D2D) communication systems, machine-to-machine (M2M) communication systems, Internet of Things (IoT) systems, and other next-generation communication systems, such as sixth-generation (6G) communication systems and other communication systems that evolve after 5G. They can also be non-3GPP communication systems, and this application does not limit them in this regard.

[0055] Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. The communication system may include a core network, network device 101, and terminal devices 102-107. Network device 101 can communicate with at least one terminal device via uplink (UL) and downlink (DL).

[0056] Network device 101 can be an access network device, which can be a device on the access network side used to support terminal access to the communication system, or a chip that can be installed in the device. This access network device can manage radio resources, provide access services to user equipment, and thus complete the forwarding of control signals and user equipment data between the user equipment and the core network. This access network device can be a Radio Access Network (RAN) device. Different systems correspond to different access network devices. For example, this access network device can be an evolved Node B (eNB), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU) in a 4G system, and an access point (AP), wireless relay node, wireless backhaul node, or transmission and reception point (TRP or transmission point, TP) in a Wi-Fi system. Alternatively, it could be a gNB or transmission point (TRP or TP) in a 5G system, or one or a group of antenna panels (including multiple antenna panels) in a base station in a 5G system, or a network node constituting a gNB or transmission point, such as a BBU or distributed unit (DU), or it could be a node or unit with corresponding functions in a future 6G system, without any limitation.

[0057] Terminal equipment, also known as user equipment (UE), mobile station, or mobile terminal (MT), is a device that provides voice and / or data connectivity to users. Terminal equipment can communicate with the core network via a radio access network and exchange voice and / or data with the RAN. For example, terminal equipment can be a handheld device with wireless connectivity, an in-vehicle device, or a vehicle user equipment. Currently, some examples of terminal equipment include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, and augmented reality (AR) devices. With the development of wireless communication technology, any device that can access a wireless communication network, communicate with the wireless network side, or communicate with other objects through a wireless network can be a terminal in the embodiments of this application. Examples include terminals and vehicles in intelligent transportation, home appliances in smart homes, electricity meter reading instruments, voltage monitoring instruments, environmental monitoring instruments in smart grids, video surveillance instruments in intelligent security networks, wireless terminals in industrial control, wireless terminals in remote medical surgery, and POS terminals. Terminals can be static or mobile; this application does not limit the type of terminal. Furthermore, terminals can also be terminal devices in Internet of Things (IoT) systems.

[0058] The terminal device in this application embodiment can also be an on-board module, on-board component, on-board chip, or on-board unit built into the vehicle as one or more components or units. The vehicle can implement the method described in this application through the built-in on-board module, on-board component, on-board chip, or on-board unit.

[0059] It should be understood that there may be multiple network devices in the communication system, and each network device can provide services to multiple terminal devices. The embodiments of this application do not limit the number of network devices and terminal devices in the communication system. Figure 1 The network devices in the application, as well as some or all of the terminal devices in the application, can implement the technical solutions provided in the embodiments of this application.

[0060] Please see Figure 2 The above is a flowchart illustrating a communication method provided in an embodiment of this application. The method may include the following steps:

[0061] S101, the network device sends first information to the terminal device, the first information being used to instruct the first terminal device to receive the receiving location information of the DCI (or new DCI).

[0062] The network device can be the aforementioned access network device. The first information can be a higher-layer instruction message, such as SIB1 or RRC signaling. The network device uses the first information to inform the first terminal device of the receiving location information of the new DCI, that is, the time-domain and frequency-domain information of receiving the new DCI. The time-domain information and frequency-domain information may be indicated by the same message or by different messages; this application does not limit this.

[0063] In this embodiment, the receiving location information of the new DCI differs from that of the existing DCI; that is, the time domain location and / or frequency domain location of the new DCI are different from those of the existing DCI. Furthermore, the format of the new DCI is the same as that of the existing DCI, but the indication information they carry is different. In other words, DCIs with the same format but different content are distinguished by their different time domain and / or frequency domain locations. The new DCI is used to indicate information about added functions and differs from the indication information of the existing DCI. The information carried by the Physical Downlink Control Channel (PDCCH) is called DCI. DCI is various information sent by the base station to schedule the UE, such as the resource blocks occupied in the frequency domain and the modulation scheme. Existing DCI refers to DCIs already used in current communication processes, such as DCI1_0, DCI2_7, DCI2_9, etc. The format of the DCI can be distinguished based on the type of Radio Network Temporary Identifier (RNTI) scrambled by the Cyclic Redundancy Check (CRC) in the DCI. In other words, the scrambling RNTI type of the new DCI is the same as that of the existing DCI. Preferably, the size of the new DCI is the same as that of the existing DCI, but of course, the two sizes can also be different.

[0064] S102, the first terminal device receives the first information and parses the first information to obtain the receiving location information of the new DCI.

[0065] S103, the network device sends a new DCI to the first terminal device.

[0066] In one exemplary embodiment, the new DCI is used to indicate information about at least one new function. In other words, the new DCI can indicate information about one new function or information about at least two new functions at the same time. This application does not limit the type of information indicated by the DCI.

[0067] In one example, the new DCI can be used to indicate information for dynamic adjustment of common channel resources, wherein the common channel resource type may include at least one of the following: PRACH resources, synchronization signal block (SSB) resources, and paging timing resources. This application does not limit the type of common channel resource.

[0068] S104, the first terminal device receives the new DCI based on the time and frequency location information of the new DCI, and parses the new DCI to obtain new indication information.

[0069] The first terminal device receives the new DCI sent by the network device based on the time-frequency location information of the new DCI, and obtains the new indication information according to the parsing method. The parsing method of the new DCI is different from that of the existing DCI.

[0070] The communication method provided in this embodiment uses DCI (Distributed Communication Interface) to indicate relevant information about new functions to the terminal device, such as information on dynamic adjustments to common channel resources. Compared with indicating information through system messages, DCI is a lightweight message that enables real-time control and management. Therefore, using DCI to indicate information can shorten the information indication cycle and improve the flexibility of information indication. Moreover, this scheme reuses the existing DCI format to carry the indication information and transmits it to the terminal device through time-frequency resources different from the existing DCI, thereby decoupling the new DCI from the existing DCI functions and improving the efficiency of DCI utilization.

[0071] The following explanation uses the new DCI indicating the dynamic adjustment of public channel resources as an example:

[0072] I. A new DCI based on a time-domain offset that differs from existing DCIs, carrying new indication information.

[0073] This application embodiment can reuse existing DCI formats such as DCI_0, DCI2_7, and DCI2_9 to transmit new indication information to terminal devices, that is, the scrambling type of the new DCI is the same as that of the existing DCI. In addition, the size of the new DCI can be the same as that of the existing DCI.

[0074] To avoid conflicts between the new DCI and the existing DCI, the frequency domain resources corresponding to the new DCI can be configured to be the same as those of the existing DCI through higher-layer signaling (e.g., the CORESET of the new DCI and the existing DCI are the same), while the time domain offset of the new DCI and the existing DCI are different, that is, different DCI contents are distinguished by different time domains on the same frequency domain.

[0075] For example, such as Figure 3aAs shown, the search space (SS) of the existing DCI is different from that of the new DCI. The SS determines the temporal offset of the DCI, so different SS ensures that the time slot positions of the new DCI and the existing DCI are different. For example, at least one of the frame offset, subframe offset, time slot offset, and OFDM symbol position of the new DCI's SS can be configured to be different from those of the existing DCI to ensure that the temporal positions of the new DCI and the existing DCI are different.

[0076] CORESET (control-resource set) is a set of physical resources, i.e., a specific area on the downlink resource grid, used to carry parameters for PDCCH or DCI. SearchSpace represents the time-domain characteristics of receiving DCI, including time-domain period and offset, the number of time slots continuously monitored per period, and the specific start of monitoring within each time slot, thus indicating the time-domain location of CORESET. SearchSpace and CORESET together constitute a defined time-frequency domain resource for receiving DCI.

[0077] (1) Reuse the DCI1_0 format to transmit the new DCI carrying the new indication information.

[0078] DCI1_0 is primarily responsible for scheduling the physical downlink shared channel (PDSCH) during terminal access, such as SIB1, other SIBs (e.g., SIB2-SIBn), Msg2, Msg4, and other messages. Specific service types are distinguished based on the CRC-scrambled RNTI type. The RNTI is an identifier assigned to the UE by the radio side in 5G NR, serving as a unique identifier for different UEs within the signal information between the UE and gNB.

[0079] DCI1_0, which uses SI-RNTI for CRC scrambling, is used for scheduling SIB1 and other SIBs. In this embodiment, the format of the new DCI is the same as that of DCI1_0, that is, it still uses SI-RNTI for scrambling. Optionally, the new DCI has the same number of bits as the existing DCI1_0.

[0080] The new DCI and DCI1_0 have the same frequency domain position, both being CORESET0, but different time domain offsets, meaning the time slot positions of the new DCI and DCI1_0 do not overlap. For example... Figure 3b As shown, the time slot position of the new DCI must not overlap with the time slot position of DCI1_0 under the current SIB1 time slot, that is, the time slot position of the new DCI does not overlap with the time slot position of DCI1_0 in the current time slot.

[0081] In an exemplary embodiment, the next time slot position of the PDCCH of the receive scheduling SIB calculated based on the last SSB index can be used as the time slot position of the new DCI. This ensures that the new DCI time slot position does not overlap with any possible time slot positions of DCI1_0.

[0082] The new DCI can have the same number of bits as the aforementioned DCI1_0, but the meanings of the fields may differ. For example, the meanings of all fields in the new DCI may be different from those in DCI1_0, or the meanings of some fields may be different. This application does not impose any restrictions on this.

[0083] (2) Multiplexing DCI2_7 to transmit a new DCI carrying new indication information

[0084] The existing DCI format DCI2_7 is used to notify one or more UEs of the availability of paging early indication (PEI) and tracking reference signal (TRS), and it uses PEI-RNTI for scrambling.

[0085] The role of PEI is as follows: In the RRC idle state, PEI serves as an indication of whether PDCCH monitoring of paging messages is required. Before monitoring paging messages, the UE performs PEI monitoring, thereby reducing the monitoring of invalid paging messages and consequently reducing UE power consumption. The role of TRS is to track time / frequency deviations by measuring the configured TRS when the UE receives downlink data transmission.

[0086] The monitoring time (MO) of the PEI occasion (PEI-O) of DCI2_7 transmission can be determined by the parameters "PEI-FrameOffset" and "firstPDCCH-MonitoringOccasionOfPEI-O" in SIB1. The parameter "PEI-FrameOffset" represents the offset relative to the starting position of the first paging frame (PF) of the paging occasion (PO), which is a frame-level offset, also referred to as the frame-level offset in this application. The parameter "firstPDCCH-MonitoringOccasionOfPEI-O" represents the symbol-level offset from the reference point to the start of the first PDCCH detection opportunity of PEI-O, which can be called the orthogonal frequency division multiplexing (OFDM) symbol-level offset.

[0087] In this embodiment, the new DCI reuses the existing DCI2_7 format, meaning the new DCI still uses PEI-RNTI for scrambling. Optionally, the new DCI has the same number of bits as the existing DCI2_7, but the content of the new DCI differs from that of the existing DCI2_7.

[0088] To avoid conflicts between the new DCI and the existing DCI2_7, the new DCI and the existing DCI2_7 can be configured to have the same frequency domain location, such as CORESET0, but their time domain locations should not overlap. For example, ... Figure 4 As shown, the time domain location of the new DCI does not overlap with the time domain location of PEI-O in the existing DCI2_7.

[0089] In an exemplary embodiment, the parameter “PEI-FrameOffset” of the time domain position of the new DCI can be configured in higher-layer signaling (such as SIB1, RRC, etc.) to be different from the parameter “PEI-FrameOffset” corresponding to the existing DCI2_7, that is, the frame-level offset of the new DCI is different from that of DCI2_7.

[0090] Furthermore, the offset parameter "firstPDCCH-MonitoringOccasionOfPEI-O" corresponding to the new DCI and the existing DCI2_7 can be configured to have different values ​​in the higher-layer signaling (SIB1). That is, the symbol position corresponding to the new DCI in SIB1 is different from the OFDM symbol position corresponding to the existing DCI2_7, that is, the symbol-level offset of the new DCI and DCI2_7 is different.

[0091] In addition, the subframe frequency shift and / or time slot offset of the new DCI and DCI2_7 can be configured to be different through higher-layer signaling.

[0092] (3) Reuse DCI2_9 to transmit a new DCI carrying new indication information.

[0093] 5G NR Release 18 (R18) introduced Cell Discontinuous Transmission and Discontinuous Reception (Cell DTX / DRX) technology, which saves power by periodically shutting down data transmission and reception. The network informs the UE of the cell shutdown cycle, and when the cell shuts down transmission and reception, the UE also stops transmitting and receiving.

[0094] DCI2_9 is used to activate or deactivate the Cell DTX / DRX (Discontinuous Reception) configuration of one or more serving cells of the UE, and / or to provide the UE with the NES mode prompt of the primary cell.

[0095] In this embodiment, the new DCI reuses the existing DCI2_9 format. DCI2_9 uses Cell DTRX-RNTI scrambling, meaning the new DCI also uses Cell DTRX-RNTI scrambling. The number of bits in the new DCI can be the same as or different from the number of bits in the existing DCI2_9, but the content of the new DCI is different from that of DCI2_9.

[0096] To avoid conflicts between the new DCI with different content and the existing DCI2_9, the time domain position of the new DCI can be configured to not overlap with the time domain position of DCI2_9 through higher-level signaling (such as SIB1, RRC signaling, etc.).

[0097] In one exemplary embodiment, at least one of the frame-level offset, subframe offset, slot offset, and OFDM symbol position of the SearchSpace of the new DCI and DCI2_9 can be configured to different values ​​via higher-layer signaling (such as SIB1, RRC signaling, etc.). This configuration method is also applicable to other DCI formats, such as DCI1_0 and DCI2_7.

[0098] In another exemplary embodiment, the UE can monitor DCI2_9 during the ON time of Cell DTX / DRX (i.e., the activation period of Cell DTX / DRX) and monitor the new DCI during the OFF time of Cell DTX / DRX (i.e., the deactivation period of Cell DTX / DRX).

[0099] In another possible implementation, the same DCI can simultaneously include indication information of multiple different functional types. For example, the same DCI can simultaneously include indication information for dynamic adjustments of PRACH resources, SSB resources, and paging resources. The DCI carries different indication information through different information blocks (which can be called information indication fields), such as... Figure 5 As shown, information block 1 in DCI is used to transmit dynamic indication information of configured additional PRACH resources, information block 2 is used to transmit dynamic indication information of SSB resources, and information block 3 is used to transmit dynamic indication information of paging resources.

[0100] The communication method provided in this embodiment reuses an existing DCI format to transmit content different from existing DCIs, and transmits DCIs with different content through different time-domain resources. This eliminates the need for system information to indicate new information, and the transmission time of DCIs is significantly less than that of system information, thus improving the efficiency of information indication and enhancing the flexibility of new indication information. Furthermore, transmitting DCIs with different content on different time-domain resources can decouple the functions of new DCIs from existing DCIs, improving the utilization efficiency of DCIs.

[0101] II. A new DCI that transmits new indication information based on frequency domain resources different from existing DCIs

[0102] In this embodiment, the network device configures the frequency domain positions of the new DCI to be different from those of the existing DCIs (such as DCI_0, DCI2_7, DCI2_9, etc.) based on the time and frequency domain information of the existing DCIs in the protocol. The frequency domain resources of the new DCI and the existing DCIs may not overlap or may partially overlap. For example, the start and / or end positions of the frequency domain resources of the new DCI may differ from those of the existing DCIs. In this embodiment, the time domain positions of the new DCI and the existing DCIs may be the same, meaning that different DCI content can be transmitted through different frequency domain resources in the same time slot.

[0103] (1) Multiplex DCI1_0 to transmit a new DCI carrying new indication information.

[0104] In the embodiments of this application, the new DCI can reuse the DCI1_0 format to transmit new content. That is, the new DCI uses SI-RNTI scrambling, but the content of the new DCI is different from the content of the existing DCI1_0. The number of bits in the new DCI and DCI1_0 can be the same or different, and this application does not limit this.

[0105] In this embodiment, to avoid conflict between the new DCI and DCI1_0, the frequency domain resources for the UE to receive the new DCI can be configured to be different from the frequency domain resources corresponding to the existing DCI1_0 through higher-layer signaling (such as RRC signaling, SIB1, etc.).

[0106] In one exemplary embodiment, the core set of the new DCI can be configured to be different from the core set of DCI1_0 via higher-layer signaling. For example, as Figure 6 As shown, the existing DCI1_0's frequency domain resources are configured as CORESET0, and the new DCI's frequency domain resources are configured as CORESET1 (or CORESET2). Furthermore, the new DCI's time domain resources can be the same as the existing DCI1_0's time domain resources. In this way, different UEs can receive different DCI content through different CORESETs in the same time domain.

[0107] For example, in a scenario where the new DCI is used to transmit time-domain adjustment information for additional PRACH resources configured for UEs supporting NES functionality, UEs supporting NES functionality can receive the new DCI at a specified timeslot location in CORESET1, while other UEs can receive the existing DCI1_0 at a specified timeslot location in CORESET0.

[0108] In another exemplary embodiment of this application, the new DCI can also reuse DCI2_7 to transmit new indication information, that is, the new DCI uses PEI-RNTI scrambling, and the content of the new DCI is different from the existing DCI2_7.

[0109] Furthermore, the frequency domain resources for transmitting the new DCI can be configured to differ from those for transmitting the existing DCI2_7 via higher-layer signaling. For example, the frequency domain resources of the existing DCI2_7 are configured as CORESET0, while the frequency domain resources of the new DCI can be configured as CORESET1 or CORESET2. Additionally, the time domain resources of the new DCI and DCI2_7 can be the same.

[0110] In yet another exemplary embodiment of this application, the new DCI may also reuse DCI2_9 to transmit new indication information, that is, the new DCI still uses CellDTRX-RNTI scrambling, and the content of the new DCI is different from the existing DCI2_9.

[0111] Furthermore, the frequency domain resources for transmitting the new DCI can be configured to differ from those for transmitting the existing DCI2_9 via higher-layer signaling. For example, the frequency domain resources of the existing DCI2_9 are configured as CORESET0, while the frequency domain resources of the new DCI can be configured as CORESET1 or CORESET2. Alternatively, the frequency domain resources of the new DCI and DCI2_9 can be the same.

[0112] In another exemplary embodiment of this application, a specific coreset associated with the new DCI can be introduced, and this specific coreset does not overlap with the coresets of the existing DCIs, wherein the time domain locations of the new DCI and the existing DCIs can be the same. That is, the new DCI containing dynamic resource adjustment instructions is transmitted through the specific coreset, and the frequency domain resources of the new DCI and the existing DCIs do not overlap, but the time domain resources of the new DCI and the existing DCIs can be the same, thereby ensuring that the frequency domain resources of the new DCI and the existing DCIs do not overlap.

[0113] The above embodiments reuse existing DCI formats to transmit new indication information and transmit DCIs with different content through different frequency domain resources. This eliminates the need to use system information to indicate new information, and the transmission time of DCIs is significantly less than that of system information, thus improving indication efficiency and the flexibility of information indication. Furthermore, transmitting new DCIs and existing DCIs on different frequency domain resources allows for the decoupling of new DCI functions from existing DCIs, improving DCI utilization efficiency.

[0114] III. A New DCI Based on Time-Domain and Frequency-Domain Resource Transmission and Dynamic Adjustment Information, Different from Existing DCIs

[0115] In this embodiment of the application, the time domain resources and frequency domain resources of the new DCI can be configured to be different from those of the existing DCI through higher-layer signaling. For specific implementation methods of configuring different time domain resources and frequency domain resources, please refer to the foregoing related content.

[0116] For example, such as Figure 7 As shown, the time and frequency resources of an existing DCI can be configured to CORESET0 on time slot 1 via higher-layer signaling, while the time and frequency resources configured for a new DCI can be CORESET1 (or CORESET2) on time slot 2.

[0117] For example, when transmitting new indication information using the DCI1_0 format, the timeslot position of the new DCI is different from that of the existing DCI1_0, and the CORESET of the new DCI is different from that of the existing DCI1_0.

[0118] For example, when transmitting new indication information using the DCI2_7 format, the frame-level offset and / or OFDM symbol-level offset corresponding to the new DCI configured by higher-layer signaling are different from those of the existing DCI2_7, and the CORESET configured for the new DCI is different from the CORESET configured for the existing DCI2_7.

[0119] For example, when transmitting new indication information using the DCI2_9 format, the new DCI is different from the SearchSpace of the existing DCI2_9, and the new DCI is different from the CORESET of the existing DCI2_9.

[0120] IV. Transmitting new indication information based on the remaining bits of the existing DCI.

[0121] This embodiment can add new information cells after existing information cells in an existing DCI, and indicate new indication information by adding new information cells. The indication field used to carry the new information cell can include the following three cases:

[0122] ① If the existing DCI includes reserve bits, the new information cells can be carried directly using the reserve bits.

[0123] ② If the existing DCI has no reserved bits or the number of reserved bits is insufficient to carry the new information cell, the total number of bits of the DCI can be indicated by higher-layer signaling to be greater than the number of bits of the existing DCI indication field, thereby generating remaining bits, which are used to carry the content of the new information cell.

[0124] ③ A specific value can be configured for an existing indicator field in the DCI, so that other existing indicator fields after that indicator field can be used to carry the content of the newly added information cell.

[0125] The above three methods can be used individually or in combination, such as using ① and ③, ① and ②, ② and ③ simultaneously, or using ①②③ simultaneously, etc. This application does not limit this.

[0126] (1) Use the remaining bits in DCI2_7 or DCI2_9 to transmit new indication information.

[0127] The network side can use higher-layer signaling (such as SIB1, RRC, etc.) to instruct the total payload N of DCI2_7 or DCI2_9, where N is greater than the size N1 of existing cells in the existing DCI. New cell content is then added to the remaining (N-N1) bits in the DCI. In other words, by expanding the total number of bits in the existing DCI, the existing DCI generates remaining bits to carry new instruction information. In this case, the DCI contains both the cell content of existing functions and the newly added cell content.

[0128] For example, taking DCI2_7 as an example, this format of DCI includes both PEI indication information and indication information for the dynamic adjustment of additional PRACH resources configured for NES-enabled UEs. In this case, after receiving DCI2_7, NES-enabled UEs can parse the content of the newly added cell indication field, that is, the content of the last (N-N1) bits, to obtain the dynamic adjustment information of PRACH resources. Other UEs, after receiving DCI2_7, can parse the content of the first N1 bits to obtain the relevant PEI information.

[0129] In one exemplary embodiment, the network side may also indicate the number of bits N2 of the newly added cell indication field through higher-layer signaling, so that the UE can directly parse the information in the last N2 bits of the DCI.

[0130] In another possible implementation, the network side can configure only a portion of the existing cell content in the DCI (DCI2_7 or DCI2_9), and add new cell content to the unconfigured or unused bits in the DCI. Scrambling is still performed using the original scrambling ID; for example, DCI2_7 still uses PEI-RNTI scrambling, and DCI2_9 still uses CellDTRX-RNTI scrambling, with the total number of bits in the DCI remaining unchanged. In this scenario, the existing cell content in the DCI may not be parsed by the UE; in other words, the existing cell content in the DCI is invalid information for the UE, but the newly added cell content can be parsed and obtained by the UE.

[0131] (2) Use the reserved bits in DCI1_0 to transmit new indication information

[0132] Add information elements to the existing reserve bits of DCI1_0 to indicate information related to the new function, that is, directly use the existing reserve bits in DCI to carry the new indication information, which is the case ① mentioned above.

[0133] DCI1_0 includes both existing and newly added information cell content. Different UEs can parse this DCI to obtain the content they need.

[0134] For example, the reserved bits in DCI1_0 transmit indication information for the dynamic adjustment of additional PRACH resources configured for UEs supporting NES functionality. The existing cell indication field in DCI1_0 is used to indicate the scheduling information of system messages. In this scenario, after receiving DCI1_0, UEs supporting NES functionality parse the contents of the reserve bits to obtain the pre-configured dynamic adjustment information of additional PRACH resources. Other UEs, after receiving DCI1_0, parse the contents of the existing cell indication field to obtain the scheduling information of system messages.

[0135] In another possible implementation, all frequency domain resource indicator fields in DCI1_0 can be set to zero, meaning the frequency domain resource indicator fields do not indicate any frequency domain resources. In this way, all bits following the frequency domain resource indicator fields can be used to carry new cell content; that is, existing cell indicator fields following the frequency domain resource indicator fields in the DCI can carry new indicator information, thereby improving the bit utilization of DCI1_0. This is case ③ above.

[0136] Furthermore, when the UE receives DCI1_0 and parses the content of the frequency domain resource indicator field to be zero, it will not trigger the process of reading system messages, thereby reducing the power consumption generated by reading system messages.

[0137] In addition, in all the above embodiments, before the network side transmits the relevant information of the new function through DCI, it can first indicate the enabling of the new function to the UE through higher-layer signaling, which is equivalent to notifying the UE that the DCI to be issued contains the relevant information of the new function.

[0138] The communication method provided in this embodiment directly uses the remaining bits in the existing DCI to transmit new indication information without using system messages to indicate new indication information. The transmission time of DCI is much shorter than that of system messages, thus improving the indication efficiency of new indication information, that is, improving the flexibility of new indication information.

[0139] Figure 9This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. The communication device may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device; or the communication device may be a network device, a device in a network device, or a device that can be used in conjunction with a network device.

[0140] like Figure 9 As shown, the communication device may include a transceiver module 101 and a processing module 102. Specifically, the processing module 102 is used to process data, which may be data received by the transceiver module 101, and the processed data may also be sent by the transceiver module 101.

[0141] The processing module 102 is used to perform the data processing function of the terminal device or network device in the above-described communication instruction method embodiment. For other possible implementations of the communication device, please refer to the relevant descriptions of the terminal device or network device functions above, which will not be repeated here.

[0142] Figure 10 This is a schematic diagram of another communication device provided in an embodiment of this application. This communication device can be a terminal device or network device as described in the above method embodiments, or it can be a chip, chip system, or processor that supports the terminal device or network device in implementing the above methods. This communication device can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0143] like Figure 10 As shown, the communication device may include one or more processors 201. The processor 201 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device (e.g., base station, baseband chip, terminal, terminal chip, DU or CU, etc.), execute software programs, and process data from the software programs.

[0144] Optionally, the communication device may include one or more memories 202, which may store instructions 204 that can be executed on the processor 201, causing the communication device to perform the methods described in the above method embodiments. Optionally, the memory 1202 may also store data. The processor 201 and the memory 202 may be configured separately or integrated together.

[0145] Optionally, the communication device may further include a transceiver 205 and an antenna 206. The transceiver 205, which may be called a transceiver module, transceiver unit, or transceiver circuit, is used to implement transceiver functions. The transceiver 205 may include a receiver and a transmitter. The receiver, which may be called a receiver unit or receiving circuit, is used to implement the receiving function; the transmitter, which may be called a transmitter or transmitting circuit, is used to implement the transmitting function. Figure 9 The processing module 102 shown can be a processor 201. The transceiver module 101 can be a transceiver 205.

[0146] In another possible design, the processor 201 may include a transceiver for implementing receive and transmit functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing receive and transmit functions may be separate or integrated. The aforementioned transceiver circuit, interface, or interface circuit can be used for reading and writing code / data, or it can be used for transmitting or relaying signals.

[0147] In another possible design, the processor 201 may optionally store instructions 203, which, when executed, cause the communication device to perform the methods described in the above method embodiments. Instructions 203 may be embedded in the processor 201; in this case, the processor 201 may be implemented in hardware.

[0148] The communication device described in the above embodiments may be a terminal device or a network device, but the scope of the communication device described in the embodiments of this application is not limited to this, and the structure of the communication device may vary. Figure 10 The communication device can be a standalone device or part of a larger device.

[0149] For cases where the communication device can be a chip or a chip system, please refer to [link / reference]. Figure 11 The diagram shows the structure of the chip. Figure 11 The chip shown includes a processor 301 and an interface 302. Optionally, it may also include a memory 303. The number of processors 301 can be one or more, and the number of interfaces 302 can be multiple.

[0150] For cases where the chip is used to implement the terminal device or network device in the embodiments of this application:

[0151] Interface 302 is used to receive or output signals.

[0152] Processor 301 is used to perform data processing operations on terminal devices or network devices.

[0153] It should be understood that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0154] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0155] It is understood that some optional features in the embodiments of this application can be implemented independently in certain scenarios without relying on other features, such as the current solution on which they are based, to solve the corresponding technical problems and achieve the corresponding effects. Alternatively, they can be combined with other features as needed in certain scenarios. Accordingly, the communication device given in the embodiments of this application can also implement these features or functions, which will not be elaborated here.

[0156] This application also provides a computer-readable medium storing a computer program or instructions, which, when executed by a communication device, implements the functions of any of the above method embodiments.

[0157] This application also provides a computer program product including instructions, which, when read and executed by a computer, causes the computer to perform the functions of any of the above method embodiments.

[0158] This application provides a communication system, which includes a terminal device and a network device; wherein the terminal device is used to execute the method executed by the terminal device in the above embodiments, and the network device is used to execute the method executed by the network device in the above embodiments.

[0159] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this embodiment, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments. The aforementioned storage medium includes various media capable of storing program code, such as flash memory, portable hard disk, read-only memory, random access memory, magnetic disk, or optical disk.

[0160] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, Applied to network devices, the method includes: Send a first DCI, which is used to indicate first information to the terminal device; A second DCI is sent, which is used to indicate second information to the terminal device. The second information is different from the first information. The format of the second DCI is the same as that of the first DCI. The second receiving location information of the second DCI is different from the first receiving location information of the first DCI.

2. The method according to claim 1, characterized in that, The second receiving location information of the second DCI differs from the first receiving location information of the first DCI, including: The temporal location of the second DCI does not overlap with the temporal location of the first DCI.

3. The method according to claim 2, characterized in that, The temporal location of the second DCI does not overlap with the temporal location of the first DCI, including: At least one of the frame offset, subframe offset, slot offset, and OFDM symbol position of the search space of the second DCI does not overlap with the search space of the first DCI.

4. The method according to any one of claims 1-3, characterized in that, The first DCI includes DCI1_0, DCI2_7, and DCI2_9.

5. The method according to any one of claims 2-4, characterized in that, The first DCI is DCI1_0 scrambled using SI-RNTI; the time domain position of the second DCI does not overlap with the time domain position of the first DCI, including: The time domain position of the second DCI does not overlap with the time domain position of the first DCI at the current time slot position of SIB1.

6. The method according to any one of claims 2-4, characterized in that, The temporal location of the second DCI does not overlap with the temporal location of the first DCI, including: The time-domain position of the second DCI is the next time slot position among all time slot candidate positions used to receive the PDCCH of the SIB1 scheduling, calculated based on the index of the last synchronization information block.

7. The method according to any one of claims 2-4, characterized in that, The first DCI is DCI2_7; the temporal position of the second DCI does not overlap with the temporal position of the first DCI, including: The frame-level offset corresponding to the second DCI is different from the frame-level offset of DCI2_7; And / or, the subframe offset of the second DCI is different from the subframe offset of the DCI2_7; And / or, the time slot offset of the second DCI is different from the time slot offset of the DCI2_7; And / or, the sign-level offset corresponding to the second DCI is different from the sign-level offset of the DCI2_7.

8. The method according to any one of claims 2-4, characterized in that, The first DCI is DCI2_9; the temporal position of the second DCI does not overlap with the temporal position of the first DCI, including: The time domain location of the first DCI is the active period of discontinuous transmission and discontinuous reception in the cell, and the time domain location of the second DCI is the inactive period of discontinuous transmission and discontinuous reception in the cell.

9. The method according to any one of claims 1-8, characterized in that, The second receiving location information of the second DCI is different from the first receiving location information of the first DCI, including: the frequency domain location of the second DCI is different from the frequency domain location of the first DCI.

10. The method according to claim 9, characterized in that, The frequency domain position of the second DCI differs from that of the first DCI, including: The CORESET corresponding to the second DCI is different from the CORESET of the first DCI.

11. The method according to any one of claims 1-10, characterized in that, Before sending the second DCI, the method further includes: Send first indication information, which is used to indicate to the terminal device the format of the second DCI and the first receiving location information of the second DCI.

12. The method according to any one of claims 1-11, characterized in that, The second DCI is used to indicate information on the dynamic adjustment of common channel resources.

13. The method according to claim 12, characterized in that, The information indicated by the second DCI includes at least one of the following: dynamic adjustment information of PRACH resources, dynamic adjustment information of SSB resources, and dynamic adjustment information of paging resources.

14. The method according to any one of claims 1-13, characterized in that, The second DCI is used to indicate at least two different pieces of information.

15. The method according to any one of claims 1-14, characterized in that, The format of the second DCI is the same as that of the first DCI, including: The scrambling identifier of the first DCI is the same as that of the first DCI, and the number of bits of the second DCI is the same as that of the first DCI.

16. A communication method, characterized in that, Applied to a terminal device, the method includes: The first DCI is received based on the first time-frequency location information, and the first information is obtained by parsing the first DCI based on the first parsing method. The second DCI is received based on the second time-frequency location information, and the second DCI is parsed based on the second parsing method to obtain second information. The second information is different from the first information, the second time-frequency location information is different from the first time-frequency location information, and the format of the second DCI is the same as the format of the first DCI.

17. The method according to claim 16, characterized in that, The second time-frequency location information differs from the first time-frequency location information in that: The temporal location of the second DCI does not overlap with the temporal location of the first DCI.

18. The method according to claim 17, characterized in that, The temporal location of the second DCI does not overlap with the temporal location of the first DCI, including: The second DCI and the first DCI have at least one of the following: frame offset, subframe offset, slot offset, and OFDM symbol position in their search spaces.

19. The method according to any one of claims 16-18, characterized in that, The first DCI includes DCI1_0, DCI2_7, and DCI2_9.

20. The method according to any one of claims 17-19, characterized in that, The first DCI is DCI1_0 scrambled using SI-RNTI; the time domain position of the second DCI does not overlap with the time domain position of the first DCI, including: The temporal position of the second DCI does not overlap with the temporal position of the first DCI at the current temporal position of SIB1.

21. The method according to claim 20, characterized in that, The temporal location of the second DCI does not overlap with the temporal location of the first DCI, including: The time-domain position of the second DCI is the next time slot position among all time slot candidate positions used to receive the PDCCH of the SIB1 scheduling, calculated based on the index of the last synchronization information block.

22. The method according to any one of claims 17-19, characterized in that, The first DCI is DCI2_7; the temporal position of the second DCI does not overlap with the temporal position of the first DCI, including: The frame-level offset corresponding to the second DCI is different from the frame-level offset of DCI2_7; And / or, the subframe offset of the second DCI is different from the subframe offset of the DCI2_7; And / or, the time slot offset of the second DCI is different from the time slot offset of the DCI2_7; And / or, the sign-level offset corresponding to the second DCI is different from the sign-level offset of the DCI2_7.

23. The method according to any one of claims 17-19, characterized in that, The first DCI is DCI2_9; the temporal position of the second DCI does not overlap with the temporal position of the first DCI, including: The time domain position of the first DCI is the active period of the cell's discontinuous transmission and discontinuous reception functions, and the time domain position of the second DCI is the deactivation period of the cell's discontinuous transmission and discontinuous reception functions.

24. The method according to any one of claims 16-23, characterized in that, The frequency domain position of the second DCI does not overlap with the frequency domain position of the first DCI.

25. The method according to claim 24, characterized in that, The frequency domain location of the second DCI does not overlap with the frequency domain location of the received first DCI, including: The CORESET corresponding to the second DCI does not overlap with the CORESET of the first DCI.

26. The method according to any one of claims 16-25, characterized in that, The information indicated by the second DCI includes at least one of the following: dynamic adjustment information of PRACH resources, dynamic adjustment information of SSB resources, and dynamic adjustment information of paging resources.

27. The method according to any one of claims 16-26, characterized in that, The second DCI is used to indicate at least two different pieces of information.

28. A communication method, characterized in that, Applied to network devices, the method includes: Send a first indication message, which is used to instruct the first terminal device to receive the location information of the DCI; Based on the location information, a DCI is sent. The DCI includes existing indication information and newly added indication information. The bits in the DCI used to carry the newly added indication information are determined by at least one of the following methods: The remaining bits are determined based on the total payload number of the DCI and the payload number of the existing information indication field. The total payload number is indicated by the second indication information. The existing information indication field is used to carry the existing indication information. The total payload number is greater than the payload number of the existing information indication field. All bits following the specified indication field in the DCI, wherein the specified indication field is the indication field in the existing information indication field that has been configured with a specific value; The reserved bits of the DCI.

29. The method according to claim 28, characterized in that, The DCI is DCI1_0 scrambled with SI-RNTI, and the specified indication field is the frequency domain indication field of DCI1_0 with all bits set to zero. The bits in the DCI used to carry the newly added indication information include all bits after the frequency domain indication field of DCI1_0 with all bits set to zero.

30. A communication method, characterized in that, Applied to a terminal device, the method includes: Receive the first indication information and parse the first indication information to obtain the DCI receiving location information; The DCI sent by the network device is received based on the received location information. The DCI includes existing indication information and newly added indication information. The bits used to carry the newly added indication information in the DCI are determined by at least one of the following methods: The remaining bits are determined based on the total payload number of the DCI and the payload number of the existing information indication field. The total payload number is indicated by the second indication information. The existing information indication field is used to carry the existing indication information. The total payload number is greater than the payload number of the existing information indication field. All bits following the specified indication field in the DCI, wherein the specified indication field is the indication field in the existing information indication field that has been configured with a specific value; Reserved bits in the DCI; The newly added indication information in the DCI is parsed in a different way than the existing indication information.

31. The method according to claim 30, characterized in that, The DCI is DCI1_0 scrambled with SI-RNTI, and the specified indication field is the frequency domain indication field of DCI1_0 with all bits set to zero. The bits in the DCI used to carry the newly added indication information include all bits after the frequency domain indication field of DCI1_0 with all bits set to zero.

32. An electronic device, characterized in that, The electronic device includes: one or more processors, a memory, and a touch screen; the memory is used to store program code; the processor is used to run the program code, causing the electronic device to implement the communication method as described in any one of claims 1 to 31.

33. A computer-readable storage medium, characterized in that, It stores instructions that, when executed on an electronic device, cause the electronic device to perform the communication method as described in any one of claims 1 to 31.

34. A chip system, characterized in that, include: At least one processor and an interface, the interface being used to receive code instructions and transmit them to the at least one processor; The at least one processor executes the code instructions to implement the communication method as described in any one of claims 1 to 31.

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