Transmission method, network device, terminal device and communication system

Abstract

The present application relates to a transmission method, a network device, a terminal device and a communication system. The method includes: the network device configures a transmission mode of control information, the transmission mode includes an independent TCI state configured for at least two resources occupied by the control information, and the control information is used to transmit the control information. By configuring the independent TCI state for at least two resources occupied by the control information, in the case of multi-transmission point transmission, the demodulation success rate of the control information can be improved, and the demodulation performance of the control information can be improved.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a transmission method, a network device, a terminal device and a communication system. Background Art

[0002] When the control channel is transmitted through multiple transmission points such as TRP (Transmission Reception Point), the control channel may not be correctly demodulated and detected. For example, when repetition transmission of PDCCH (Physical Downlink Control CHannel) is performed through multiple TRPs, if the transmission mode is configured as FDM (Frequency Division Multiplexing), PDCCH may not be correctly demodulated and detected. Summary of the invention

[0003] The embodiments of the present application provide a transmission method, a network device, a terminal device and a communication system, which can clarify the method of repeated transmission when the control information is repeatedly transmitted through multiple TRPs, ensure that the control information can be correctly demodulated and detected, and improve the demodulation performance of the control information.

[0004] The present application provides a transmission method, including:

[0005] The network device configures independent TCI states for at least two resources occupied by control information, and the control information is transmitted through the configured at least two resources.

[0006] The present application provides a transmission method, including:

[0007] The terminal device obtains an independent TCI state configured for at least two resources occupied by control information, and the control information is transmitted through the at least two configured resources.

[0008] The present application provides a network device, including:

[0009] A configuration unit is used to configure an independent TCI state for at least two resources occupied by control information, and the control information is transmitted through the configured at least two resources.

[0010] The present application provides a terminal device, including:

[0011] An acquisition unit is used to acquire an independent TCI state configured for at least two resources occupied by control information, and the control information is transmitted through the configured at least two resources.

[0012] The embodiment of the present application provides a network device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the transmission method executed by the above network device.

[0013] The embodiment of the present application provides a terminal device, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the transmission method executed by the terminal device.

[0014] An embodiment of the present application provides a chip for implementing the above-mentioned transmission method.

[0015] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned transmission method.

[0016] An embodiment of the present application provides a computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute the above-mentioned transmission method.

[0017] An embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned transmission method.

[0018] An embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned transmission method.

[0019] The present application provides a communication system, including:

[0020] A terminal device, used to execute the transmission method executed by the above terminal device;

[0021] A network device is used to execute the transmission method executed by the above network device.

[0022] In the embodiment of the present application, by configuring independent TCI states for at least two resources occupied by control information, the demodulation success rate of control information can be improved and the demodulation performance of control information can be enhanced in the case of multi-transmission point transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of an application scenario according to an embodiment of the present application.

[0024] Figure 2 It is a schematic flow chart of a transmission method according to an embodiment of the present application.

[0025] Figure 3It is a schematic flow chart of a transmission method according to another embodiment of the present application.

[0026] Figure 4 is a schematic block diagram of a network device according to an embodiment of the present application.

[0027] Figure 5 It is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0028] Figure 6 It is a schematic block diagram of a terminal device according to another embodiment of the present application.

[0029] Figure 7 It is a schematic block diagram of a communication device according to an embodiment of the present application.

[0030] Figure 8 is a schematic block diagram of a chip according to an embodiment of the present application.

[0031] Fig. 9 It is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0033] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) system or other communication systems.

[0034] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), and vehicle to vehicle (Vehicle to Vehicle, V2V) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0035] Optionally, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0036] The embodiments of the present application do not limit the spectrum to which they are applied. For example, the embodiments of the present application can be applied to licensed spectrum or unlicensed spectrum.

[0037] The embodiments of the present application describe various embodiments in combination with network devices and terminal devices, wherein: the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc. The terminal device may be a station (ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in an NR network or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0038] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0039] The network device can be a device used to communicate with a mobile device. The network device can be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, etc.

[0040] In an embodiment of the present application, a network device provides services for a cell, and a terminal device communicates with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: a metro cell, a micro cell, a picocell, a femtocell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0041] Figure 1 One network device 110 and two terminal devices 120 are shown exemplarily. Optionally, the wireless communication system 100 may include multiple network devices 110, and each network device 110 may include another number of terminal devices 120 within its coverage area, which is not limited in the embodiments of the present application.

[0042] Optionally, the wireless communication system 100 may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF), etc., which is not limited in the embodiments of the present application.

[0043] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] Figure 2is a schematic flow chart of a transmission method 200 according to an embodiment of the present application. The method can optionally be applied to Figure 1 The system shown in the figure is not limited thereto. The method includes at least part of the following contents.

[0045] S210: The network device configures an independent TCI (Transmission Configuration Indication) state for at least two resources occupied by the control information, and the control information is transmitted through the configured at least two resources.

[0046] Optionally, in an embodiment of the present application, the time domain resource positions corresponding to all resources occupied by the control information are the same.

[0047] Optionally, in the embodiment of the present application, the control information may include but is not limited to at least one of the following: PDCCH and PUCCH (Physical Uplink Control Channel). In the embodiment of the present application, PDCCH is used as an example for illustration, and PUCCH can refer to the example of PDCCH, so it is not described in detail.

[0048] Optionally, in the embodiment of the present application, the at least two resources transmit independent and detectable identical control information, for example, the two resources transmit the same PDCCH, and the two PDCCHs are independent and detectable.

[0049] Optionally, in an embodiment of the present application, the at least two resources transmit different parts of the same control information respectively. For example, the two resources transmit different parts of the same PDCCH respectively, and the two parts constitute the complete PDCCH.

[0050] Taking the control information as PDCCH as an example, when repetition transmission of PDCCH is performed through multiple TRPs, each TRP has a TCI state, and the TCI states of different TRPs are different. In this case, the transmission mode of the control information can be configured as the FDM transmission mode, and the independent TCI states (TCIstate) of at least two resource configurations occupied by PDCCH can be configured, so that the FDM transmission mode of multiple TRPs can be clarified. Among them, FDM is a multiplexing technology that modulates multiple baseband signals to different frequency carriers and then superimposes them to form a composite signal.

[0051] In the embodiment of the present application, the network device configures the independent TCI of at least two resource configurations occupied by the control information, so that when the control channel is transmitted through multiple TRPs, the transmission mode can be clarified so that the terminal device can correctly demodulate the control channel. For example, when the repetition transmission of PDCCH is performed through multiple TRPs, the repeated transmission mode is clarified so that the terminal device can correctly demodulate the candidate PDCCH.

[0052] Optionally, in an embodiment of the present application, at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

[0053] Optionally, in an embodiment of the present application, the candidate control channel may include but is not limited to at least one of the following: PDCCH and PUCCH.

[0054] In one example, the control information is a PDCCH, and the candidate control channel is a candidate PDCCH. The frequency domain resources occupied by the PDCCH configured by the network device may constitute the frequency domain resources of the candidate PDCCH.

[0055] The network equipment configures CORESET (Control Resource Set) and Search Space for PDCCH transmission. The control resource set includes multiple physical resource blocks in the frequency domain, and can include 1 to 3 OFDM (Orthogonal Frequency Division Multiplexing) symbols in the time domain, and can be located at any position in the time slot. The time domain resources occupied by CORESET are semi-statically configured by high-level parameters. The search space is a set of candidate PDCCHs at one or more aggregation levels. The aggregation level of the PDCCH actually sent by the base station can change over time. Since there is no relevant signaling to inform the UE (User Equipment), the UE needs to blindly detect the PDCCH at different aggregation levels. Among them, the PDCCH to be blindly detected is called a candidate PDCCH. The UE decodes all candidate PDCCHs in the search space. If the CRC (Cyclic Redundancy Check) check passes, the content of the decoded PDCCH is considered valid for the UE, and the information obtained by decoding is used for subsequent operations.

[0056] In NR (New Radio), within each downlink BWP (Bandwidth Part) of each serving cell, the network device can configure up to 10 search space sets for the user. The search space set is configured with time domain configuration information to indicate the time domain position of the user to detect the PDCCH. And the network device configures the set-associated CORESET ID for each search space set. Through the CORESET ID, the user can obtain the physical resources of the search space set in the frequency domain. Each search space set has a uniquely associated CORESET ID. Different search space sets can be associated with the same CORESET ID. The UE determines the time-frequency domain position of the PDCCH candidate based on the time domain given by the search space set, the frequency domain of the associated CORESET ID, and other parameters in the search space set.

[0057] When configuring a CORESET, the network device configures one or a group of TCI states for each CORESET. The TCI state is used to indicate the channel filtering parameters corresponding to the demodulation detection of the PDCCH candidate in the Search Space associated with the CORESET. When the network device configures a group of TCI states for a CORESET, the network device activates a unique TCI state for the CORESET through MAC CE signaling to indicate the channel filtering parameters of the UE when demodulating the PDCCH.

[0058] In addition, the network device also configures a higher layer index (high layer identifier) ​​for each CORESET to indicate whether it is the same TRP. The value range of this value is 0 and 1. For CORESETs configured with the same higher layer index, users believe that this is data from the same TRP.

[0059] Optionally, in an embodiment of the present application, the resources of the candidate control channel include a group of CCEs (Control Channel Element) configured by the network device, and each CCE in the group of CCEs has a unique index in the resources of the candidate control channel. For example, each CCE in a group of CCEs has a unique index in the resources of the candidate PDCCH: CCE0, CCE1, CCE2, ..., etc.

[0060] In the embodiment of the present application, CCE is the basic unit constituting PDCCH, occupying 6 REGs (Resource Element Group). These 6 REGs can be 6 REGs on 1 OFDM symbol, 3 REGs on 2 OFDM symbols, or 2 REGs on 3 OFDM symbols. A given PDCCH can be composed of 1, 2, 4, 8 and 16 CCEs, and its specific value can be determined by the DCI (Downlink control information) payload size and the required coding rate. The number of CCEs that constitute PDCCH is called the aggregation level (AL).

[0061] Optionally, in the embodiment of the present application, the method further includes:

[0062] The network device determines a group of CCEs corresponding to the resources of the candidate control channel in a preconfiguration manner.

[0063] Optionally, in an embodiment of the present application, each CCE in the group of CCEs is divided into one or more REG bundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

[0064] Optionally, in an embodiment of the present application, the index of the REG bundle corresponding to each CCE is different, and the indexes of the REG bundles corresponding to different CCEs are different.

[0065] In an embodiment of the present application, REG is a physical resource unit that occupies one OFDM symbol in the time domain and one resource block (including 12 continuous subcarriers in the frequency domain) in the frequency domain. In one REG, 3 REs (Resource Element) are used to map PDCCH demodulation reference signals, and 9 REs are used to map DCI REs. REG bundle includes multiple REGs that are continuous in the time domain and / or frequency domain. The number of REGs that constitute the REG bundle may be 1, 2, 3 or 6. And the PDCCH mapped in a REGbundle uses the same precoder, that is, the UE can use the demodulation reference signal in the REG bundle for joint channel estimation in the time domain and / or frequency domain. The use of REG bundle allows the UE to use the demodulation reference signals of all REGs in the REG bundle for channel estimation, thereby improving the accuracy of channel estimation. The number of REGs included in the REG bundle in the time domain and frequency domain is related to the configuration of the number of time domain symbols of CORESET (CONTROL RESOURCE SET) and the size of REGbundle. The following table lists examples of specific values.

[0066]

[0067] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is one REGbundle.

[0068] In one example, the number of REGs constituting the REG bundle may be 2, 3, or 6. The encoding method may be the size of the REG bundle or the continuous RBs in the CORESET, that is, broadband precoding.

[0069] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is all consecutive resource blocks RBs in the physical resources to which the control channel belongs.

[0070] Optionally, in an embodiment of the present application, the network device configures the mapping method of CCE to REGbundle to the terminal device through pre-configuration and / or high-layer signaling.

[0071] In this implementation manner, the network device configures the mapping mode of CCE to REG bundle to the terminal device through pre-configuration and / or high-layer signaling, which can ensure that the configurations of the network device and the terminal device are consistent.

[0072] Optionally, in an embodiment of the present application, any one of the at least two resources occupied by the control information is a first resource; the first resource is a set of second resources corresponding to a first TCI state; the first TCI state is any one of the at least two TCI states configured by the network device for the control information.

[0073] For example, the network device configures N TCI states for the PDCCH. N is greater than or equal to 2. Take 2 TCI states: TCIstate 0 and TCIstate 1 as an example. Different TCI states may come from different TRPs.

[0074] Optionally, in an embodiment of the present application, the method of determining the set of second resources corresponding to the first TCI state may be different depending on the second resources.

[0075] Method 1: The second resource is in units of CCE, and the method for determining the set of second resources corresponding to the first TCI state includes:

[0076] Sort the CCEs occupied by the resources of the candidate control channels;

[0077] Grouping is done based on integer multiples of the CCE size;

[0078] The configured TCI state number is cyclically mapped to each group to obtain a set of CCEs corresponding to the first TCI state.

[0079] For example, the resources of the candidate control channel candidate PDCCH occupy k CCEs, and the candidate PDCCHs are grouped according to the integer multiples of the CCE size s. Assume k is 10, s is 2, and the grouping is 5. Assume k is 10, s is 3, and the grouping is 4. If the number of TCI states is N. According to the configured number of TCI states N, cyclic mapping to each group can obtain the set of CCEs corresponding to each TCI state.

[0080] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in descending order according to the CCE indexes in the candidate control channels.

[0081] For example, k CCEs in the candidate PDCCH are sorted in descending order of CCE index as CCE k-1, CCE k-2, ... CCE 2, CCE 1, CCE 0.

[0082] Assume that k is 10 and s is 2, the 5 sorted groups are {CCE 9, CCE 8}; {CCE 7, CCE 6}; {CCE 5, CCE 4}; {CCE 3, CCE 2}; {CCE 1, CCE 0}.

[0083] Assume that k is 10 and s is 3, the four groups after sorting are {CCE 9, CCE8, CCE7}; {CCE 6, CCE5, CCE4}; {CCE 3, CCE2, CCE1}; and {CCE0}.

[0084] Assume that there are 2 TCI states: TCI state0 and TCI state1. By cyclically mapping these two TCI state numbers 2 to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above 5 groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {CCE 9, CCE8} corresponds to TCI state0; {CCE7, CCE 6} corresponds to TCIstate1; {CCE5, CCE4} corresponds to TCI state0; {CCE 3, CCE2} corresponds to TCI state1; {CCE1, CCE 0} corresponds to TCI state0.

[0085] Assume that there are three TCI states: TCI state0, TCI state1, and TCI state2. By cyclically mapping these three TCI states to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above four groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {CCE 9, CCE8, CCE7} corresponds to TCI state0; {CCE 6, CCE5, CCE4} corresponds to TCI state1; {CCE 3, CCE2, CCE1} corresponds to TCI state2; {CCE 0} corresponds to TCIstate0.

[0086] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in ascending order according to the CCE indexes in the candidate control channels.

[0087] For example, k CCEs in the candidate PDCCH are sorted in ascending order of CCE index as CCE 0, CCE 1, CCE 2, ..., CCE k-2, CCE k-1.

[0088] Assume that k is 10 and s is 2, the 5 sorted groups are {CCE0, CCE1}; {CCE2, CCE3}; {CCE4, CCE5}; {CCE6, CCE7}; {CCE 8, CCE9}.

[0089] Assume that k is 10 and s is 3, the four groups after sorting are {CCE 0, CCE 1, CCE 2}; {CCE 3, CCE 4, CCE 5}; {CCE 6, CCE 7, CCE 8}; {CCE 9}.

[0090] Assume that there are two TCI states: TCI state0 and TCI state1. By cyclically mapping these two TCI states to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above 5 groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {CCE0, CCE1} corresponds to TCI state0; {CCE2, CCE3} corresponds to TCI state1; {CCE4, CCE5} corresponds to TCI state0; {CCE6, CCE7} corresponds to TCI state1; {CCE 8, CCE9} corresponds to TCIstate0.

[0091] Assume that there are three TCI states: TCI state0, TCI state1, and TCI state2. By cyclically mapping these three TCI states to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above four groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {CCE 0, CCE1, CCE2} corresponds to TCI state0; {CCE 3, CCE4, CCE5} corresponds to TCI state1; {CCE 6, CCE7, CCE8} corresponds to TCI state2; {CCE9} corresponds to TCIstate0.

[0092] Mode 2: The second resource is in units of REG bundles, and the method for determining the set of second resources corresponding to the first TCI state also includes:

[0093] Sort the REG bundles corresponding to all CCE resources of the candidate control channel;

[0094] Group according to the integer multiple of REG bundle size;

[0095] According to the configured TCI state number, it is cyclically mapped to each group to obtain a set of REGbundles corresponding to the first TCI state.

[0096] For example, the resources of the candidate PDCCH occupy p REG bundles, and the candidate PDCCHs are grouped by integer multiples of the REG bundle size t. Assume that p is 16, t is 4, and the number of groups is 4. Assume that k is 16, t is 6, and the number of groups is 3. If the number of TCI states is N. According to the configured number of TCI states N, it is cyclically mapped to each group, and the set of REG bundles corresponding to each TCI state can be obtained.

[0097] Optionally, in an embodiment of the present application, the manner of sorting REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting in descending order according to the indexes of all REG bundles in the candidate control channel.

[0098] For example, p CCEs in the candidate PDCCH are sorted in descending order of CCE index as REG bundle p-1, REG bundle p-2, ... REG bundle 2, REG bundle 1, REG bundle 0.

[0099] Assuming p is 16 and t is 4, the 4 sorted groups are {REG bundle 15, REG bundle14, REGbundle 13, REG bundle12}; {REG bundle 11, REG bundle10, REG bundle 9, REGbundle8}; {REG bundle7, REG bundle6, REG bundle5, REG bundle4}; {REG bundle 3, REGbundle2, REG bundle1, REG bundle 0}.

[0100] Assuming k is 16 and t is 6, the three groups after sorting are {REG bundle 15, REG bundle 14, REGbundle 13, REG bundle 12, REG bundle 11, REG bundle 10}; {REG bundle 9, REG bundle 8, REG bundle 7, REG bundle 6, REG bundle 5, REG bundle 4}; {REG bundle 3, REG bundle 2, REG bundle 1, REG bundle 0}.

[0101] Assume that there are 2 TCI states: TCI state0 and TCI state1. By cyclically mapping these two TCI state numbers 2 to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above 4 groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {REG bundle 15, REG bundle14, REG bundle 13, REGbundle12} corresponds to TCI state0; {REG bundle 11, REG bundle10, REG bundle 9, REG bundle8} corresponds to TCI state1; {REG bundle7, REG bundle6, REG bundle5, REG bundle4} corresponds to TCIstate0; {REG bundle 3, REG bundle2, REG bundle1, REG bundle 0} corresponds to TCI state1.

[0102] Assume that there are three TCI states: TCI state0, TCI state1, and TCI state2. By cyclically mapping these three TCI states to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above three groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {REG bundle 15, REG bundle14, REG bundle 13, REG bundle12, REG bundle 11, REG bundle10} corresponds to TCI state0; {REG bundle 9, REGbundle8, REG bundle7, REG bundle6, REG bundle5, REG bundle4} corresponds to TCI state1; {REGbundle 3, REG bundle2, REG bundle1, REG bundle 0} corresponds to TCI state2.

[0103] Optionally, in an embodiment of the present application, the manner of sorting REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes of the candidate control channel in ascending order.

[0104] For example, the p CCEs in the candidate PDCCH are sorted in ascending order according to the index of the REG bundle corresponding to the CCE resource as REG bundle 0, REG bundle 1, REG bundle 2, ..., REG bundle p-2, REGbundle p-1.

[0105] Assuming p is 16 and t is 4, the 4 sorted groups are {REG bundle 0, REG bundle 1, REG bundle 2, REG bundle 3}; {REG bundle 4, REG bundle 5, REG bundle 6, REG bundle 7}; {REGbundle 8, REG bundle 9, REG bundle 10, REG bundle 11}; {REG bundle 12, REG bundle 13, REG bundle 14, REG bundle 15}.

[0106] Assuming k is 16 and t is 6, the three sorted groups are {REG bundle 0, REG bundle 1, REG bundle 2, REG bundle 3, REG bundle 4, REG bundle 5}; {REG bundle 6, REG bundle 7, REG bundle 8, REG bundle 9, REG bundle 10, REG bundle 11}; {REG bundle 12, REG bundle 13, REG bundle 14, REG bundle 15}.

[0107] Assume that there are 2 TCI states: TCI state0 and TCI state1. By cyclically mapping these two TCI state numbers 2 to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above 4 groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {REG bundle 0, REG bundle1, REG bundle 2, REGbundle3} corresponds to TCI state0; {REG bundle 4, REG bundle5, REG bundle 6, REG bundle7} corresponds to TCI state1; {REG bundle8, REG bundle9, REG bundle10, REG bundle11} corresponds to TCIstate0; {REG bundle 12, REG bundle13, REG bundle14, REG bundle 15} corresponds to TCI state1.

[0108] Assume that there are three TCI states: TCI state0, TCI state1, and TCI state2. By cyclically mapping these three TCI states to each group, the set of CCEs corresponding to each TCI state can be obtained. Taking the above three groups as an example, after mapping, the set of CCEs corresponding to each TCI state is as follows: {REG bundle 0, REG bundle1, REG bundle 2, REGbundle3, REG bundle 4, REG bundle5} corresponds to TCI state0; {REG bundle 6, REG bundle7, REGbundle8, REG bundle9, REG bundle10, REG bundle11} corresponds to TCI state1; {REG bundle 12, REG bundle13, REG bundle14, REG bundle 15} corresponds to TCI state2.

[0109] Optionally, in the embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in ascending order. An example is as follows:

[0110]

[0111] Optionally, in the embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel from large to small. For an example of this situation, see the table above, and change the CCE index order from large to small.

[0112] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is one REGbundle.

[0113] Optionally, in an embodiment of the present application, the TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or a TCI state activated by high-level signaling for multiple CORESETs respectively.

[0114] The embodiment of the present application can clarify the method of repeated transmission when the control information is repeatedly transmitted through multiple TRPs, ensure that the control information can be correctly demodulated and detected, and improve the demodulation performance of the control information.

[0115] Figure 3 is a schematic flow chart of a transmission method 300 according to an embodiment of the present application. The method can optionally be applied to Figure 1 The system shown in the figure is not limited thereto. The method includes at least part of the following contents.

[0116] S310. The terminal device obtains an independent TCI state configured for at least two resources occupied by control information, and the control information is transmitted through the at least two configured resources.

[0117] Optionally, in an embodiment of the present application, the at least two resources respectively transmit independent and detectable identical control information.

[0118] Optionally, in an embodiment of the present application, the at least two resources respectively transmit different parts of the same control information.

[0119] Optionally, in an embodiment of the present application, the time domain resource positions corresponding to all resources occupied by the control information are the same.

[0120] Optionally, in an embodiment of the present application, the at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

[0121] Optionally, in an embodiment of the present application, the resources of the candidate control channel include a group of CCEs configured by the network device, and each CCE in the group of CCEs has a unique index in the resources of the candidate control channel.

[0122] Optionally, in an embodiment of the present application, each CCE in the group of CCEs is divided into one or more REG bundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

[0123] Optionally, in an embodiment of the present application, the index of the REG bundle corresponding to each CCE is different, and the indexes of the REG bundles corresponding to different CCEs are different.

[0124] Optionally, in an embodiment of the present application, the terminal device obtains the mapping method of CCE to REG bundle through pre-configuration and / or high-layer signaling.

[0125] Optionally, in an embodiment of the present application, any one of the at least two resources occupied by the control information is a first resource; the first resource includes a set of second resources corresponding to a first TCI state; the first TCI state is any one of the at least two TCI states configured by the network device for the control information.

[0126] Optionally, in an embodiment of the present application, the second resource is in units of CCE, and the set of second resources corresponding to the first TCI state includes: after sorting the CCEs occupied by the resources of the candidate control channel, grouping them in units of integer multiples of the CCE size, and cyclically mapping them to each group according to the configured number of TCI states, the set of CCEs corresponding to the first TCI state is obtained.

[0127] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in descending order according to the CCE indexes in the candidate control channels.

[0128] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in ascending order according to the CCE indexes in the candidate control channels.

[0129] Optionally, in an embodiment of the present application, the second resource is in units of REG bundles, and the set of second resources corresponding to the first TCI state includes: after sorting the REG bundles corresponding to all CCE resources of the candidate control channel, grouping them in units of integer multiples of the REG bundle size, and cyclically mapping them to each group according to the configured number of TCI states, the set of REG bundles corresponding to the first TCI state is obtained.

[0130] Optionally, in an embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting in descending order according to the indexes of all REG bundles in the candidate control channel.

[0131] Optionally, in an embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes of the candidate control channel in ascending order.

[0132] Optionally, in an embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in ascending order.

[0133] Optionally, in an embodiment of the present application, the method of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in descending order.

[0134] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is one REGbundle.

[0135] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is all continuous resource blocks RBs.

[0136] Optionally, in an embodiment of the present application, the TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or a TCI state activated by high-level signaling for multiple CORESETs respectively.

[0137] Optionally, in an embodiment of the present application, the control information includes at least one of the following: PDCCH and PUCCH.

[0138] Optionally, in an embodiment of the present application, the candidate control channel includes at least one of the following: PDCCH and PUCCH.

[0139] Optionally, in the embodiment of the present application, the method further includes:

[0140] The terminal device demodulates each candidate control channel according to multiple TCI states corresponding to the resources of the control information.

[0141] The terminal device, such as the UE, can calculate the PDCCH candidate according to the SearchSpace configured by the network device and the associated CORESET, and demodulate the PDCCH on the PDCCHcandidate according to the N TCI states configured by the network device and the CCE occupied by the PDCCH candidate. The specific correspondence between the TCI state and the candidate PDCCH can refer to the relevant description and examples in the above-mentioned method 200 embodiment. The UE sets the channel filtering parameters according to the TCI state corresponding to the frequency domain resources of each PDCCH candidate, and demodulates the candidate PDCCH until the correct PDCCH is demodulated or the maximum detection limit is reached.

[0142] For a specific example of the network device executing method 300 of this embodiment, reference may be made to the relevant description in the above method 200, which will not be described again for the sake of brevity.

[0143] Figure 4 : is a schematic block diagram of a network device according to an embodiment of the present application. The network device may include:

[0144] The configuration unit 410 is used to configure independent TCI states for at least two resources occupied by control information, and the control information is transmitted through the configured at least two resources.

[0145] Optionally, in an embodiment of the present application, the at least two resources respectively transmit independent and detectable identical control information.

[0146] Optionally, in an embodiment of the present application, the at least two resources respectively transmit different parts of the same control information.

[0147] Optionally, in an embodiment of the present application, the time domain resource positions corresponding to all resources occupied by the control information are the same.

[0148] Optionally, in an embodiment of the present application, the at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

[0149] Optionally, in an embodiment of the present application, the resources of the candidate control channel include a group of CCEs configured by the network device, and each CCE in the group of CCEs has a unique index in the resources of the candidate control channel.

[0150] Optionally, in an embodiment of the present application, the configuration unit is further used to: determine a group of CCEs corresponding to the resources of the candidate control channel by pre-configuration.

[0151] Optionally, in an embodiment of the present application, each CCE in the group of CCEs is divided into one or more REG bundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

[0152] Optionally, in an embodiment of the present application, the index of the REG bundle corresponding to each CCE is different, and the indexes of the REG bundles corresponding to different CCEs are different.

[0153] Optionally, in an embodiment of the present application, the configuration unit is further used to configure the mapping method of CCE to REGbundle to the terminal device through pre-configuration and / or high-layer signaling.

[0154] Optionally, in the embodiment of the present application, any one of the at least two resources occupied by the control information is a first resource; the first resource is a set of second resources corresponding to the first TCI state;

[0155] The first TCI state is any one of at least two TCI states configured by the network device for control information.

[0156] Optionally, in an embodiment of the present application, the second resource is in units of CCE, and the method for determining the set of second resources corresponding to the first TCI state includes: sorting the CCEs occupied by the resources of the candidate control channel; grouping them in units of integer multiples of the CCE size; and cyclically mapping them to each group according to the configured number of TCI states to obtain the set of CCEs corresponding to the first TCI state.

[0157] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in descending order according to the CCE indexes in the candidate control channels.

[0158] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in ascending order according to the CCE indexes in the candidate control channels.

[0159] Optionally, in an embodiment of the present application, the second resource is in units of REG bundles, and the method for determining the set of second resources corresponding to the first TCI state also includes: sorting the REGbundles corresponding to all CCE resources of the candidate control channel; grouping them in units of integer multiples of the REG bundle size; and cyclically mapping them to each group according to the configured number of TCI states to obtain the set of REG bundles corresponding to the first TCI state.

[0160] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in descending order according to the indexes of all REG bundles in the candidate control channels.

[0161] Optionally, in an embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes of the candidate control channel in ascending order.

[0162] Optionally, in an embodiment of the present application, the method of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in all CCE resources of the candidate control channel in ascending order.

[0163] Optionally, in an embodiment of the present application, the method of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in descending order.

[0164] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is one REGbundle.

[0165] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is all consecutive resource blocks RBs in the physical resources to which the control channel belongs.

[0166] Optionally, in an embodiment of the present application, the TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or a TCI state activated by high-level signaling for multiple CORESETs respectively.

[0167] Optionally, in an embodiment of the present application, the control information includes at least one of the following: PDCCH and PUCCH.

[0168] Optionally, in an embodiment of the present application, the candidate control channel includes at least one of the following: PDCCH and PUCCH.

[0169] It should be understood that the above and other operations and / or functions of each unit in the network device according to the embodiment of the present application are respectively to implement Figure 2 For the sake of brevity, the corresponding process of the network device in the method 200 is not repeated here.

[0170] Figure 5 : is a schematic block diagram of a terminal device according to an embodiment of the present application. The terminal device may include:

[0171] The acquisition unit 510 is used to acquire an independent TCI state configured for at least two resources occupied by control information, and the control information is transmitted through the configured at least two resources.

[0172] Optionally, in an embodiment of the present application, the at least two resources respectively transmit independent and detectable identical control information.

[0173] Optionally, in an embodiment of the present application, the at least two resources respectively transmit different parts of the same control information.

[0174] Optionally, in an embodiment of the present application, the time domain resource positions corresponding to all resources occupied by the control information are the same.

[0175] Optionally, in an embodiment of the present application, the at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

[0176] Optionally, in an embodiment of the present application, the resources of the candidate control channel include a group of CCEs configured by the network device, and each CCE in the group of CCEs has a unique index in the resources of the candidate control channel.

[0177] Optionally, in an embodiment of the present application, each CCE in the group of CCEs is divided into one or more REG bundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

[0178] Optionally, in an embodiment of the present application, the index of the REG bundle corresponding to each CCE is different, and the indexes of the REG bundles corresponding to different CCEs are different.

[0179] Optionally, in an embodiment of the present application, the acquisition unit is further used to obtain a mapping method of CCE to REG bundle through pre-configuration and / or high-layer signaling.

[0180] Optionally, in an embodiment of the present application, any one of the at least two resources occupied by the control information is a first resource; the first resource includes a set of second resources corresponding to a first TCI state; the first TCI state is any one of the at least two TCI states configured by the network device for the control information.

[0181] Optionally, in an embodiment of the present application, the second resource is in units of CCE, and the set of second resources corresponding to the first TCI state includes: after sorting the CCEs occupied by the resources of the candidate control channel, grouping them in units of integer multiples of the CCE size, and cyclically mapping them to each group according to the configured number of TCI states, the set of CCEs corresponding to the first TCI state is obtained.

[0182] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in descending order according to the CCE indexes in the candidate control channels.

[0183] Optionally, in an embodiment of the present application, the manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting in ascending order according to the CCE indexes in the candidate control channels.

[0184] Optionally, in an embodiment of the present application, the second resource is in units of REG bundles, and the set of second resources corresponding to the first TCI state includes: after sorting the REG bundles corresponding to all CCE resources of the candidate control channel, grouping them in units of integer multiples of the REG bundle size, and cyclically mapping them to each group according to the configured number of TCI states, the set of REG bundles corresponding to the first TCI state is obtained.

[0185] Optionally, in an embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting in descending order according to the indexes of all REG bundles in the candidate control channel.

[0186] Optionally, in an embodiment of the present application, the CCEs occupied by the resources of the candidate control channel are sorted, and the method for sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes of the candidate control channel in ascending order.

[0187] Optionally, in an embodiment of the present application, the manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in ascending order.

[0188] Optionally, in an embodiment of the present application, the method of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in descending order.

[0189] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is one REGbundle.

[0190] Optionally, in an embodiment of the present application, the frequency domain granularity of the control information during precoding is all continuous resource blocks RBs.

[0191] Optionally, in an embodiment of the present application, the TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or a TCI state activated by high-level signaling for multiple CORESETs respectively.

[0192] Optionally, in an embodiment of the present application, the control information includes at least one of the following: PDCCH and PUCCH.

[0193] Optionally, in the embodiment of the present application, Figure 6 As shown, the terminal device 500 further includes a demodulation unit 520, which is disposed in the terminal device and is used to:

[0194] Each candidate control channel is demodulated according to multiple TCI states corresponding to the resources of the control information.

[0195] It should be understood that the above and other operations and / or functions of each unit in the terminal device according to the embodiment of the present application are respectively to implement Figure 3 For the sake of brevity, the corresponding process of the terminal device in method 300 is not repeated here.

[0196] Figure 7 It is a schematic structural diagram of a communication device 600 according to an embodiment of the present application. Figure 7 The communication device 600 shown includes a processor 610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0197] Alternatively, if Figure 7 As shown, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0198] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0199] Alternatively, if Figure 7 As shown, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0200] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of the antennas may be one or more.

[0201] Optionally, the communication device 600 may be a network device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0202] Optionally, the communication device 600 may be a terminal device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0203] Figure 8 is a schematic structural diagram of a chip 700 according to an embodiment of the present application. Figure 8 The chip 700 shown includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0204] Alternatively, if Figure 8 As shown, the chip 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0205] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0206] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0207] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0208] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0209] Optionally, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0210] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0211] The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0212] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM).

[0213] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0214] Fig. 9 8 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. Fig. 9As shown, the communication system 800 includes a terminal device 810 and a network device 820 .

[0215] The network device configures a transmission mode of control information, the transmission mode including independent TCI states configured for at least two resources occupied by the control information, and the control information is used to transmit the control information.

[0216] The terminal device obtains a transmission mode of control information, where the transmission mode includes an independent TCI state configured for at least two resources occupied by the control information, and the control information is used to transmit the control information.

[0217] The terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be described in detail here.

[0218] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instruction can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0219] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0220] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0221] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A transmission method, comprising: The network device configures an independent transmission configuration indication TCI state for at least two resources occupied by the control information, and the control information is transmitted through the configured at least two resources. Among them, any one of the at least two resources occupied by the control information is a first resource; the first resource is a set of second resources corresponding to the first TCI state; The first TCI state is any one of at least two TCI states configured by the network device for control information, The second resource is in units of CCE or REG bundle. Among them, when the second resource is in units of CCE, the method for determining the set of second resources corresponding to the first TCI state includes: Sort the CCEs occupied by the resources of the candidate control channels; Grouping is done based on integer multiples of the CCE size; Cyclic mapping to each group according to the configured TCI state number to obtain a set of CCEs corresponding to the first TCI state, When the second resource is in units of REG bundles, the method for determining the set of second resources corresponding to the first TCI state further includes: Sort the REG bundles corresponding to all CCE resources of the candidate control channel; Group according to the integer multiple of REG bundle size; According to the configured TCI state number, it is cyclically mapped to each group to obtain a set of REGbundles corresponding to the first TCI state.

2. The method according to claim 1, wherein: The at least two resources transmit independent and detectable identical control information respectively.

3. The method according to claim 1, wherein: The at least two resources respectively transmit different parts of the same control information.

4. The method according to claim 1, wherein: The time domain resource positions corresponding to all resources occupied by the control information are the same.

5. The method according to claim 1, wherein: The at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

6. The method according to claim 5, wherein: The candidate control channel resources include a group of control channel elements CCE configured by the network device, and each CCE in the group of CCEs has a unique index in the candidate control channel resources.

7. The method according to claim 6, wherein: The method further comprises: The network device determines a group of CCEs corresponding to the resources of the candidate control channel in a preconfiguration manner.

8. The method according to claim 6, wherein: Each CCE in the group of CCEs is divided into one or more resource element groups REG bundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

9. The method according to claim 8, wherein: The index of the REG bundle corresponding to each CCE is different from each other, and the indexes of the REG bundles corresponding to different CCEs are different from each other.

10. The method according to claim 9, wherein: The network device configures the mapping mode of CCE to REGbundle to the terminal device through pre-configuration and / or high-layer signaling.

11. The method according to claim 1, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting the CCEs in the candidate control channels in descending order according to the CCE indexes.

12. The method according to claim 1, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting the CCEs in the candidate control channels in ascending order according to the CCE indexes in the candidate control channels.

13. The method according to claim 1, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes in the candidate control channel in descending order.

14. The method according to claim 1, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes in the candidate control channel in ascending order.

15. The method according to claim 1, wherein: The manner of sorting the REGbundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes of all CCE resources of the candidate control channel in ascending order.

16. The method according to claim 1, wherein: The manner of sorting the REGbundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in descending order.

17. The method according to any one of claims 1 to 16, wherein: The frequency domain granularity of the control information during precoding is one REG bundle.

18. The method according to any one of claims 1 to 16, wherein: The frequency domain granularity of the control information during precoding is all continuous resource blocks RB in the physical resources to which the control channel belongs.

19. The method according to any one of claims 1 to 16, wherein: The TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or one TCI state activated by high-level signaling for multiple CORESETs respectively.

20. The method according to any one of claims 1 to 16, wherein: The channel used to transmit the control information includes at least one of the following: a physical downlink control channel PDCCH and a physical uplink control channel PUCCH.

21. The method according to any one of claims 1 to 16, wherein: The candidate control channels include at least one of the following: PDCCH and PUCCH.

22. A transmission method, comprising: The terminal device obtains an independent TCI state configured for at least two resources occupied by control information, and the control information is transmitted through the at least two configured resources, Wherein, any one of the at least two resources occupied by the control information is a first resource; The first resource includes a set of second resources corresponding to the first TCI state; The first TCI state is any one of at least two TCI states configured by the network device for control information, The second resource is in units of CCE or REG bundle. Among them, when the second resource is in units of CCE, the set of second resources corresponding to the first TCI state includes: after sorting the CCEs occupied by the resources of the candidate control channel, grouping them in units of integer multiples of the CCE size and cyclically mapping them to each group according to the configured number of TCI states, the set of CCEs corresponding to the first TCI state obtained, Among them, when the second resource is in units of REG bundles, the set of second resources corresponding to the first TCI state includes: after sorting the REG bundles corresponding to all CCE resources of the candidate control channel, grouping them according to integer multiples of the REG bundle size, and cyclically mapping them to each group according to the configured number of TCI states, the set of REG bundles corresponding to the first TCI state is obtained.

23. The method according to claim 22, wherein: The at least two resources transmit independent and detectable identical control information respectively.

24. The method according to claim 22, wherein: The at least two resources respectively transmit different parts of the same control information.

25. The method according to claim 22, wherein: The time domain resource positions corresponding to all resources occupied by the control information are the same.

26. The method of claim 22, wherein: The at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

27. The method according to claim 26, wherein: The resources of the candidate control channel include a group of CCEs configured by the network device, and each CCE in the group of CCEs has a unique index in the resources of the candidate control channel.

28. The method according to claim 27, wherein: Each CCE in the group of CCEs is divided into one or more REGbundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

29. The method according to claim 28, wherein: The index of the REG bundle corresponding to each CCE is different from each other, and the indexes of the REG bundles corresponding to different CCEs are different from each other.

30. The method of claim 28, wherein: The terminal device obtains the mapping mode of CCE to REG bundle from the network device through pre-configuration and / or high-layer signaling.

31. The method of claim 22, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes sorting them in descending order according to the CCE indexes in the candidate control channels.

32. The method of claim 22, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes sorting the CCEs in the candidate control channels in ascending order according to the CCE indexes in the candidate control channels.

33. The method of claim 22, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes in the candidate control channel in descending order.

34. The method of claim 22, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes of the candidate control channel in ascending order.

35. The method of claim 22, wherein: The manner of sorting the REGbundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in ascending order.

36. The method of claim 22, wherein: The manner of sorting the REGbundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in descending order.

37. The method according to any one of claims 22 to 36, wherein: The frequency domain granularity of the control information during precoding is one REG bundle.

38. The method according to any one of claims 22 to 36, wherein: The frequency domain granularity of the control information during precoding is all continuous resource blocks RBs.

39. The method according to any one of claims 22 to 36, wherein: The TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or one TCI state activated by high-level signaling for multiple CORESETs respectively.

40. The method according to any one of claims 22 to 36, wherein: The channel used to transmit the control information includes at least one of the following: PDCCH and PUCCH.

41. The method according to any one of claims 22 to 36, wherein: The method further comprises: The terminal device demodulates each candidate control channel according to multiple TCI states corresponding to the resources of the control information.

42. A network device comprising: a configuration unit, configured to configure an independent TCI state for at least two resources occupied by control information, wherein the control information is transmitted through the at least two configured resources, Among them, any one of the at least two resources occupied by the control information is a first resource; the first resource is a set of second resources corresponding to the first TCI state; The first TCI state is any one of at least two TCI states configured by the network device for control information, The second resource is in units of CCE or REG bundle. Among them, when the second resource is in units of CCE, the method for determining the set of second resources corresponding to the first TCI state includes: Sort the CCEs occupied by the resources of the candidate control channels; Grouping is done based on integer multiples of the CCE size; Cyclic mapping to each group according to the configured TCI state number to obtain a set of CCEs corresponding to the first TCI state, When the second resource is in units of REG bundles, the method for determining the set of second resources corresponding to the first TCI state further includes: Sort the REG bundles corresponding to all CCE resources of the candidate control channel; Group according to the integer multiple of REG bundle size; According to the configured TCI state number, it is cyclically mapped to each group to obtain a set of REGbundles corresponding to the first TCI state.

43. The network device according to claim 42, wherein: The at least two resources transmit independent and detectable identical control information respectively.

44. The network device according to claim 42, wherein: The at least two resources respectively transmit different parts of the same control information.

45. The network device according to claim 42, wherein: The time domain resource positions corresponding to all resources occupied by the control information are the same.

46. ​​The network device according to claim 42, wherein: The at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

47. The network device according to claim 46, wherein: The resources of the candidate control channel include a group of CCEs configured by the network device, and each CCE in the group of CCEs has a unique index in the resources of the candidate control channel.

48. The network device according to claim 47, wherein: The configuration unit is also used to: A group of CCEs corresponding to the resources of the candidate control channel is determined in a preconfiguration manner.

49. The network device according to claim 47, wherein: Each CCE in the group of CCEs is divided into one or more REG bundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

50. The network device according to claim 49, wherein: The index of the REG bundle corresponding to each CCE is different from each other, and the indexes of the REG bundles corresponding to different CCEs are different from each other.

51. The network device according to claim 50, wherein: The configuration unit is also used to configure the mapping mode of CCE to REG bundle to the terminal device through pre-configuration and / or high-layer signaling.

52. The network device according to claim 42, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting the CCEs in the candidate control channels in descending order according to the CCE indexes.

53. The network device according to claim 42, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting the CCEs in the candidate control channels in ascending order according to the CCE indexes in the candidate control channels.

54. The network device according to claim 42, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes in the candidate control channel in descending order.

55. The network device according to claim 42, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes of the candidate control channel in ascending order.

56. The network device according to claim 42, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in all CCE resources of the candidate control channel in ascending order.

57. The network device according to claim 42, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in descending order.

58. The network device according to any one of claims 42 to 57, wherein: The frequency domain granularity of the control information during precoding is one REG bundle.

59. The network device according to any one of claims 42 to 57, wherein: The frequency domain granularity of the control information during precoding is all continuous resource blocks RB in the physical resources to which the control channel belongs.

60. The network device according to any one of claims 42 to 57, wherein: The TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or one TCI state activated by high-level signaling for multiple CORESETs respectively.

61. A network device according to any one of claims 42 to 57, wherein: The channel used to transmit the control information includes at least one of the following: PDCCH and PUCCH.

62. A network device according to any one of claims 42 to 57, wherein: The candidate control channels include at least one of the following: PDCCH and PUCCH.

63. A terminal device, comprising: an acquisition unit, configured to acquire an independent TCI state configured for at least two resources occupied by control information, wherein the control information is transmitted through the at least two configured resources, Wherein, any one of the at least two resources occupied by the control information is a first resource; The first resource includes a set of second resources corresponding to the first TCI state; The first TCI state is any one of at least two TCI states configured by the network device for control information, The second resource is in units of CCE or REG bundle. Among them, when the second resource is in units of CCE, the set of second resources corresponding to the first TCI state includes: after sorting the CCEs occupied by the resources of the candidate control channel, grouping them in units of integer multiples of the CCE size and cyclically mapping them to each group according to the configured number of TCI states, the set of CCEs corresponding to the first TCI state obtained, Among them, when the second resource is in units of REG bundles, the set of second resources corresponding to the first TCI state includes: after sorting the REG bundles corresponding to all CCE resources of the candidate control channel, grouping them according to integer multiples of the REG bundle size, and cyclically mapping them to each group according to the configured number of TCI states, the set of REG bundles corresponding to the first TCI state is obtained.

64. The terminal device according to claim 63, wherein: The at least two resources transmit independent and detectable identical control information respectively.

65. The terminal device according to claim 63, wherein: The at least two resources respectively transmit different parts of the same control information.

66. The terminal device according to claim 63, wherein: The time domain resource positions corresponding to all resources occupied by the control information are the same.

67. The terminal device according to claim 63, wherein: The at least two resources belong to resources occupied by the same candidate control channel configured by the network device for the terminal device.

68. The terminal device according to claim 67, wherein: The resources of the candidate control channel include a group of CCEs configured by the network device, and each CCE in the group of CCEs has a unique index in the resources of the candidate control channel.

69. The terminal device according to claim 68, wherein: Each CCE in the group of CCEs is divided into one or more REG bundles, and the index of the REG bundle corresponding to the CCE is uniquely determined according to each CCE index.

70. The terminal device according to claim 69, wherein: The index of the REG bundle corresponding to each CCE is different from each other, and the indexes of the REG bundles corresponding to different CCEs are different from each other.

71. The terminal device according to claim 69, wherein: The acquisition unit is further configured to acquire a mapping mode of CCE to REG bundle through pre-configuration and / or high-layer signaling.

72. The terminal device according to claim 63, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting the CCEs in the candidate control channels in descending order according to the CCE indexes.

73. The terminal device according to claim 63, wherein: The manner of sorting the CCEs occupied by the resources of the candidate control channels includes: sorting the CCEs in the candidate control channels in ascending order according to the CCE indexes in the candidate control channels.

74. The terminal device according to claim 63, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes in the candidate control channel in descending order.

75. The terminal device according to claim 63, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting all REG bundle indexes of the candidate control channel in ascending order.

76. The terminal device according to claim 63, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in ascending order.

77. The terminal device according to claim 63, wherein: The manner of sorting the REG bundles corresponding to all CCE resources of the candidate control channel includes: sorting the REGs corresponding to the CCE indexes in the candidate control channel in descending order.

78. The terminal device according to any one of claims 63 to 77, wherein: The frequency domain granularity of the control information during precoding is one REG bundle.

79. The terminal device according to any one of claims 63 to 77, wherein: The frequency domain granularity of the control information during precoding is all continuous resource blocks RBs.

80. A terminal device according to any one of claims 63 to 77, wherein: The TCI state includes multiple TCI states activated by high-level signaling for one CORESET, or one TCI state activated by high-level signaling for multiple CORESETs respectively.

81. The terminal device according to any one of claims 63 to 77, wherein: The channel used to transmit the control information includes at least one of the following: PDCCH and PUCCH.

82. The terminal device according to any one of claims 63 to 77, wherein: The terminal device further includes a demodulation unit, which is arranged in the terminal device and is used for: Each candidate control channel is demodulated according to multiple TCI states corresponding to the resources of the control information.

83. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 1 to 21.

84. A terminal device, comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 22 to 41.

85. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 21.

86. A chip, comprising: A processor, configured to call and run a computer program from a memory so that a device equipped with the chip executes a method as claimed in any one of claims 22 to 41.

87. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 21.

88. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 22 to 41.

89. A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method as claimed in any one of claims 1 to 21.

90. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 22 to 41.

91. A communication system comprising: A network device, configured to perform the method according to any one of claims 1 to 21; A terminal device, configured to execute the method as claimed in any one of claims 22 to 41.

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