Information transmission method and communication device

Abstract

Provided are an information transmission method and a communication device, the method comprising: receiving first configuration information from a network device, the first configuration information being used for indicating a silence mode of an SRS, the silence mode of the SRS being one or more of the following: at least one SRS transmission occasion associated with an SRS resource set does not send an SRS; or at least one SRS transmission time associated with the SRS resource does not send the SRS; or at least one port of the SRS resource does not send the SRS at at least one SRS transmission time; and then, sending the SRS to the network equipment based on the first configuration information. Through the method, the power consumption of the terminal equipment is reduced on the premise of not influencing the acquisition of the user-level channel information, and meanwhile, the adjacent region interference of the SRS is reduced, so that the channel estimation precision of the SRS is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, and in particular to an information transmission method and a communication device. BACKGROUND

[0002] A sounding reference signal (SRS) is an uplink channel sounding signal, which is transmitted by a terminal device and received by a network device. The SRS is used for acquisition of uplink channel state information (CSI) based on codebook or non-codebook transmission, channel measurement for downlink data transmission weight calculation, and uplink beam management, etc. The transmission method of the SRS, including time-frequency resources, transmission beams, transmission power, etc., is configured by the network device for the terminal device. The network device can configure one or more SRS resource sets for the terminal device, and configure specific information of SRS transmission for the terminal device in the form of the SRS resource set; wherein one SRS resource set contains one or more SRS resources, and one SRS resource includes one or more SRS ports. The terminal device can transmit the SRS on the corresponding time-frequency resources, and the network device uses different analog beam scanning to receive SRS at different times.

[0003] Based on the current new radio (NR) protocol, the terminal device is not aware of the specific receiving beam information of the network device for the SRS. For some beams, due to the poor channel quality between the user and the network device, the network device will not use the beam to receive the uplink signal of the user or transmit the downlink signal of the user. At this time, the SRS transmitted based on these beams not only increases the power consumption of the terminal device, but also generates additional inter-cell interference. SUMMARY

[0004] The embodiments of the present application provide an information transmission method and a communication device, based on the method described in the present application, the power consumption of the terminal device can be reduced, and the inter-cell interference of the SRS can be reduced.

[0005] In a first aspect, the embodiments of the present application provide an information transmission method, the method comprising:

[0006] receive first configuration information from the network device, the first configuration information being used to indicate a muting manner of a sounding reference signal (SRS), the muting manner of the SRS being one or more of: no SRS is transmitted in at least one SRS transmission occasion associated with a SRS resource set; or no SRS is transmitted in at least one SRS transmission occasion associated with a SRS resource; or no SRS is transmitted in at least one port of a SRS resource in at least one SRS transmission occasion; and then transmit the SRS to the network device based on the first configuration information.

[0007] In the embodiments of the present application, the method described in the first aspect can be applied to a terminal device. According to the actual measurement requirement of the user-level SRS, the network device can indicate the terminal device the muting manner of the SRS through the first configuration information, and no SRS is transmitted in certain SRS transmission occasions, so as to realize dynamic muting of unnecessary SRS transmission. This is beneficial to reducing the power consumption of the terminal device and reducing the interference of the SRS of the adjacent area, thereby improving the channel estimation accuracy of the SRS.

[0008] In a possible implementation, the SRS resource set contains a first SRS resource, the first SRS resource is associated with N SRS transmission occasions, and M SRS transmission occasions do not transmit SRS in the N SRS transmission occasions, N and M being positive integers, and M being less than or equal to N.

[0009] In the embodiments of the present application, the muting manner of the SRS is that at least one SRS transmission occasion associated with a SRS resource does not transmit SRS, which can be that at least one SRS transmission occasion associated with the same SRS resource does not transmit SRS. This is beneficial to reducing the power consumption of the terminal device and reducing the interference of the SRS of the adjacent area.

[0010] In a possible implementation, the SRS resource set further contains a second SRS resource, the second SRS resource is associated with P SRS transmission occasions, and Q SRS transmission occasions do not transmit SRS in the P SRS transmission occasions, P and Q being positive integers, and Q being less than or equal to P.

[0011] In the embodiments of the present application, the muting manner of the SRS is that at least one SRS transmission occasion associated with a SRS resource does not transmit SRS, which can be that at least one SRS transmission occasion associated with different SRS resources does not transmit SRS. This is beneficial to reducing the power consumption of the terminal device and reducing the interference of the SRS of the adjacent area.

[0012] In a possible implementation, the N SRS transmission occasions associated with the first SRS resource are the same as the P SRS transmission occasions associated with the second SRS resource; and the M SRS transmission occasions that are not used for transmitting SRS in the N SRS transmission occasions associated with the first SRS resource are the same as the Q SRS transmission occasions that are not used for transmitting SRS in the P SRS transmission occasions associated with the second SRS resource.

[0013] In the embodiment of the present application, the muting manner of the SRS is that at least one SRS transmission occasion associated with the SRS resource set does not transmit SRS, which can effectively indicate the muting manner of the SRS resource set, and is beneficial to reducing the power consumption of the terminal device and reducing the interference of the SRS.

[0014] In a possible implementation, the first SRS resource is associated with T groups of SRS transmission occasions, and each group of SRS transmission occasions includes the N SRS transmission occasions, and T is a positive integer; and / or the second SRS resource is associated with K groups of SRS transmission occasions, and each group of SRS transmission occasions includes the P SRS transmission occasions, and K is a positive integer.

[0015] In the embodiment of the present application, the muting manner of the SRS can be indicated in groups, which is beneficial to improving the communication efficiency.

[0016] In a possible implementation, the SRS resource set includes a first SRS resource, the first SRS resource includes a plurality of subbands, the first SRS resource is associated with X1 groups of SRS transmission occasions, each group of SRS transmission occasions in the X1 groups of SRS transmission occasions includes SRS transmission occasions of all subbands in the first SRS resource, X1 is an integer greater than 1; and Y1 groups of SRS transmission occasions in the X1 groups of SRS transmission occasions do not transmit SRS, Y1 is a positive integer, and Y1 is less than or equal to X1.

[0017] In the embodiment of the present application, in the case of transmitting SRS in a frequency hopping manner for the SRS resource, the muting manner of the SRS can also be effectively indicated on the same SRS resource, which is beneficial to reducing the power consumption of the terminal device and reducing the interference of the SRS.

[0018] In a possible implementation, the SRS resource set further includes a second SRS resource, the second SRS resource includes a plurality of subbands, the second SRS resource is associated with X2 groups of SRS transmission occasions, each group of SRS transmission occasions in the X2 groups of SRS transmission occasions includes SRS transmission occasions of all subbands in the second SRS resource, X2 is an integer greater than 1; and Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions do not transmit SRS, Y2 is a positive integer, and Y2 is less than or equal to X2.

[0019] In the embodiments of the present application, for the case that SRS is transmitted in a frequency hopping manner for SRS resources, the muting manner of SRS can also be effectively indicated on different SRS resources, which is beneficial to reduce the power consumption of the terminal device and reduce the interference of SRS in adjacent areas.

[0020] In a possible implementation, the X1 groups of SRS transmission occasions associated with the first SRS resource are the same as the X2 groups of SRS transmission occasions associated with the second SRS resource; and the Y1 groups of SRS transmission occasions that are not used for transmitting SRS in the X1 groups of SRS transmission occasions associated with the first SRS resource are the same as the Y2 groups of SRS transmission occasions that are not used for transmitting SRS in the X2 groups of SRS transmission occasions associated with the second SRS resource.

[0021] In the embodiments of the present application, for the case that SRS is transmitted in a frequency hopping manner for a set of SRS resources, the muting manner of the set of SRS resources can also be effectively indicated, which is beneficial to reduce the power consumption of the terminal device and reduce the interference of SRS in adjacent areas.

[0022] In a possible implementation, the first SRS resource is associated with Z1 sets of SRS transmission occasions, each of the Z1 sets of SRS transmission occasions includes the X1 groups of SRS transmission occasions, and Z1 is a positive integer; and / or the second SRS resource is associated with Z2 sets of SRS transmission occasions, each of the Z2 sets of SRS transmission occasions includes the X2 groups of SRS transmission occasions, and Z2 is a positive integer.

[0023] In the embodiments of the present application, the muting manner of SRS can also be indicated in groups for the frequency hopping manner, which is beneficial to improve the communication efficiency.

[0024] In a possible implementation, the SRS resource includes a first port, the SRS resource is associated with a first SRS transmission occasion, and the first port does not transmit SRS in the first SRS transmission occasion.

[0025] In the embodiments of the present application, the muting manner of SRS is that at least one port of the SRS resource does not transmit SRS in at least one SRS transmission occasion, which is beneficial to reduce the power consumption of the terminal device and reduce the interference of SRS in adjacent areas.

[0026] In a possible implementation, the SRS resource further includes a second port, and the second port transmits SRS in the first SRS transmission occasion. The embodiments of the present application are mainly for the case that the same port of the SRS resource transmits SRS in different SRS transmission occasions.

[0027] In a possible implementation, the SRS resource is further associated with a second SRS transmission occasion, and the first port transmits SRS in the second SRS transmission occasion. The embodiments of the present application mainly aim at the case that different ports of the SRS resource transmit SRS in the same SRS transmission occasion.

[0028] In a possible implementation, the first configuration information is used to indicate a muting manner of the SRS to be switched. Based on the manner, the flexibility of the network device in configuring the muting manner of the SRS is improved.

[0029] In a possible implementation, before receiving the first configuration information from the network device, the method further includes: sending, to the network device, first information used to indicate one or more of the following information: an identifier of a first channel state information reference signal (CSIRS) resource set, an index value of a first CSIRS resource, a reference signal received power (RSRP) measurement value corresponding to the first CSIRS resource, or a port allowed to be muted; and wherein a receiving energy corresponding to the first CSIRS resource set or the first CSIRS resource is less than a preset threshold value.

[0030] In the embodiments of the present application, the network device can autonomously decide which muting manner to use based on its own measurement information, or the terminal device can report a SRS muting suggestion, and then the network device decides the final muting manner to be used; and the accuracy and flexibility of the network device in configuring the muting manner of the SRS are improved.

[0031] In a possible implementation, the first configuration information is carried in radio resource control (RRC) or downlink control information (DCI) or a medium access control control element (MAC CE).

[0032] In a possible implementation, the total SRS transmission power of different SRS resources in the SRS resource set is the same.

[0033] In a possible implementation, the same transmission power is used between the ports of different SRS resources in the SRS resource set.

[0034] In a second aspect, the embodiments of the present application provide an information transmission method, which includes:

[0035] sending, to a terminal device, first configuration information used to indicate a muting manner of SRS, the muting manner of the SRS being one or more of: no SRS is transmitted in at least one SRS transmission occasion associated with a SRS resource set; or no SRS is transmitted in at least one SRS transmission occasion associated with a SRS resource; or at least one port of a SRS resource does not transmit SRS in at least one SRS transmission occasion; and then receiving, from the terminal device, SRS based on the first configuration information.

[0036] In the embodiments of the present application, the method described in the second aspect can be applied to the network device, and the beneficial effects of the possible implementation manners of the second aspect can refer to the beneficial effects of the possible implementation manners of the first aspect, which will not be described here.

[0037] In a possible implementation manner, the SRS resource set contains a first SRS resource, the first SRS resource is associated with N SRS transmission occasions, and M SRS transmission occasions in the N SRS transmission occasions do not transmit SRS, N and M are positive integers, and M is less than or equal to N.

[0038] In a possible implementation manner, the SRS resource set further contains a second SRS resource, the second SRS resource is associated with P SRS transmission occasions, and Q SRS transmission occasions in the P SRS transmission occasions do not transmit SRS, P and Q are positive integers, and Q is less than or equal to P.

[0039] In a possible implementation manner, the N SRS transmission occasions associated with the first SRS resource are the same as the P SRS transmission occasions associated with the second SRS resource; and the M SRS transmission occasions in the N SRS transmission occasions associated with the first SRS resource, which do not transmit SRS, are the same as the Q SRS transmission occasions in the P SRS transmission occasions associated with the second SRS resource, which do not transmit SRS.

[0040] In a possible implementation manner, the first SRS resource is associated with T groups of SRS transmission occasions, each group of SRS transmission occasions includes the N SRS transmission occasions, and T is a positive integer; and / or the second SRS resource is associated with K groups of SRS transmission occasions, each group of SRS transmission occasions includes the P SRS transmission occasions, and K is a positive integer.

[0041] In a possible implementation manner, the SRS resource set contains a first SRS resource, the first SRS resource contains a plurality of subbands, the first SRS resource is associated with X1 groups of SRS transmission occasions, each group of SRS transmission occasions in the X1 groups of SRS transmission occasions includes SRS transmission occasions of all subbands in the first SRS resource, X1 is an integer greater than 1; Y1 groups of SRS transmission occasions in the X1 groups of SRS transmission occasions do not transmit SRS, Y1 is a positive integer, and Y1 is less than or equal to X1.

[0042] In a possible implementation, the SRS resource set contains a second SRS resource, the second SRS resource contains a plurality of subbands, the second SRS resource is associated with X2 groups of SRS transmission occasions, each group of SRS transmission occasions includes SRS transmission occasions of all subbands in the second SRS resource, X2 is an integer greater than 1; Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions do not send SRS, Y2 is a positive integer, and Y2 is less than or equal to X2.

[0043] In a possible implementation, the X1 groups of SRS transmission occasions associated with the first SRS resource are the same as the X2 groups of SRS transmission occasions associated with the second SRS resource; Y1 groups of SRS transmission occasions that are not used for sending SRS in the X1 groups of SRS transmission occasions associated with the first SRS resource are the same as Y2 groups of SRS transmission occasions that are not used for sending SRS in the X2 groups of SRS transmission occasions associated with the second SRS resource.

[0044] In a possible implementation, the first SRS resource is associated with Z1 SRS transmission occasion sets, each SRS transmission occasion set in the Z1 SRS transmission occasion sets includes the X1 groups of SRS transmission occasions, and Z1 is a positive integer; and / or, the second SRS resource is associated with Z2 SRS transmission occasion sets, each SRS transmission occasion set in the Z2 SRS transmission occasion sets includes the X2 groups of SRS transmission occasions, and Z2 is a positive integer.

[0045] In a possible implementation, the SRS resource contains a first port, the SRS resource is associated with a first SRS transmission occasion, and the first port does not send SRS in the first SRS transmission occasion.

[0046] In a possible implementation, the SRS resource further contains a second port, and the second port sends SRS in the first SRS transmission occasion.

[0047] In a possible implementation, the SRS resource is further associated with a second SRS transmission occasion, and the first port sends SRS in the second SRS transmission occasion.

[0048] In a possible implementation, the first configuration information is used to indicate a muting mode to be switched by SRS.

[0049] In a possible implementation, before the first configuration information is sent to the terminal device, the method further includes: receiving first information from the terminal device, the first information being used to indicate one or more of the following information: an identity of the first set of CSIRS resources, an index value of the first CSIRS resource, an RSRP measurement value corresponding to the first CSIRS resource, or a port allowed to be muted; and wherein a receiving energy corresponding to the first set of CSIRS resources or the first CSIRS resource is less than a preset threshold value.

[0050] In a possible implementation, the first configuration information is carried in RRC or DCI or MAC CE.

[0051] In a possible implementation, the total SRS transmission power of different SRS resources in the SRS resource set is the same.

[0052] In a possible implementation, the same transmission power is used between ports of different SRS resources in the SRS resource set.

[0053] In a third aspect, an embodiment of the present application provides a communication apparatus, which is configured to execute the method in the first aspect and the second aspect, or any possible implementation of any one of the first aspect and the second aspect. The communication apparatus includes a module configured to execute the method in the first aspect and the second aspect, or any possible implementation of any one of the first aspect and the second aspect.

[0054] In a fourth aspect, an embodiment of the present application provides a communication apparatus, which includes processing circuitry configured to execute the method in the first aspect and the second aspect, or any possible implementation of any one of the first aspect and the second aspect. The processing circuitry is configured to execute a program stored in a memory, and when the program is executed, the method in any one of the first aspect and the second aspect or any possible implementation is executed.

[0055] In a possible implementation, the memory is located outside the communication apparatus.

[0056] In a possible implementation, the memory is located inside the communication apparatus.

[0057] In the embodiments of the present application, the processing circuitry and the memory can also be integrated into one device, that is, the processing circuitry and the memory can also be integrated together. For example, the communication apparatus can be a chip.

[0058] In a possible implementation, the communication apparatus further includes transceiver circuitry, which is configured to receive information (or input information) or send information (or output information).

[0059] In a fifth aspect, an embodiment of the present application provides a communication apparatus, comprising processing circuitry and transceiver circuitry, the processing circuitry can be a logic circuit, and the transceiver circuitry can be an interface circuit, the logic circuit and the interface circuit are coupled; the interface circuit is configured to input and / or output information, and the logic circuit is configured to execute the method in any possible implementation of the first aspect and the second aspect, or any of the first aspect and the second aspect.

[0060] In a sixth aspect, an embodiment of the present application provides a chip, comprising processing circuitry and interface circuitry, the processing circuitry and the interface circuitry are coupled; the interface circuitry is configured to input and / or output information, and the processing circuitry is configured to execute code instructions, so that the method shown in any of the first aspect and the second aspect or any possible implementation manner is executed.

[0061] In a seventh aspect, an embodiment of the present application provides a computer readable storage medium, configured to store a computer program, when the computer program is executed on a computer, so that the method shown in any of the first aspect and the second aspect or any possible implementation manner is executed.

[0062] In an eighth aspect, an embodiment of the present application provides a computer program product, when the computer program product is executed on a computer, so that the method shown in any of the first aspect and the second aspect or any possible implementation manner is executed.

[0063] In a ninth aspect, the present application provides a communication system, comprising a terminal device and a network device, the terminal device is configured to execute the method shown in the first aspect or any possible implementation manner of the first aspect, and the network device is configured to execute the method shown in the second aspect or any possible implementation manner of the second aspect. BRIEF DESCRIPTION OF DRAWINGS

[0064] Figure 1 FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0065] Figure 2 FIG. 2 is a schematic diagram of communication between a network device and a terminal device according to an embodiment of the present application;

[0066] Figure 3A FIG. 3 is a schematic diagram of an ORAN system according to an embodiment of the present application;

[0067] Figure 3B FIG. 4 is a network element function division and protocol layer structure diagram of an ORAN device according to an embodiment of the present application;

[0068] Figure 4A FIG. 5 is a schematic diagram of an antenna array HBF architecture according to an embodiment of the present application;

[0069] Figure 4B is a schematic diagram of SRS transmission provided by an embodiment of the present application;

[0070] Figure 4C is a schematic diagram of network device beam scanning receiving SRS provided by an embodiment of the present application;

[0071] Figure 5 is a schematic diagram of information transmission method provided by an embodiment of the present application;

[0072] Figure 6A is a schematic diagram of SRS muting provided by an embodiment of the present application;

[0073] Figure 6B is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0074] Figure 6C is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0075] Figure 6D is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0076] Figure 7A is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0077] Figure 7B is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0078] Figure 7C is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0079] Figure 7D is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0080] Figure 7E is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0081] Figure 8A is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0082] Figure 8B is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0083] Figure 8C is a schematic diagram of another SRS muting provided by an embodiment of the present application;

[0084] Figure 9is a structural schematic diagram of a communication device provided by an embodiment of the present application;

[0085] Figure 10 is a structural schematic diagram of another communication device provided by an embodiment of the present application;

[0086] Figure 11 is a structural schematic diagram of another communication device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0087] To facilitate understanding of the technical solutions of the present application, the present application will be further described below with reference to the drawings.

[0088] The terms "first" and "second" and the like in the specification of the present application, claims, and drawings are only used to distinguish different objects, and are not used to describe a specific order. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device, etc. comprising a series of steps or units is not limited to the listed steps or units, but can optionally further comprise steps or units not listed, etc., or can optionally further comprise other steps or units inherent to the process, method, product, or device, etc.

[0089] In this document, "embodiment" means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it independent or alternative to other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0090] In the present application, "at least one" means one or more, "multiple" means two or more, "at least two" means two or three and more, and "and / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, "A and / or B" can mean: only A, only B, and A and B exist at the same time, where A and B can be singular or plural. "Or" means that there can be two relationships, such as only A, only B; when A and B are not mutually exclusive, it can also mean that there are three relationships, such as only A, only B, and A and B exist at the same time. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of these items. For example, at least one of a, b, or c, can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c".

[0091] In the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, and also includes indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, and also includes indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, between components, between modules, between chips, between software modules or hardware modules within a device through a bus, a wire or an interface.

[0092] In order to better understand the embodiments of the present application, first, the communication system related to the embodiments of the present application will be introduced as follows:

[0093] The method provided by the embodiments of the present application can be applied to various communication systems, for example, a wireless local area network (WLAN) communication system, a wireless fidelity (Wi-Fi) system, a multiple-in multiple-out (MIMO) communication system, a long term evolution (LTE) system, an internet of things (IoT) system, a narrow band internet of things (NB-IoT) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a 4th generation (4G) system, a 5th generation (5G) system or a new radio (NR), and other future communication systems, for example, a 6th generation (6G) system, and the like. The IoT network may, for example, include but is not limited to a vehicle network. The communication mode in the vehicle network system can be collectively referred to as vehicle-to-everything (V2X, X may represent any thing). For example, V2X may include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication or vehicle-to-network (V2N) communication, and the like. The method provided by the embodiments of the present application also supports a communication system that integrates multiple wireless technologies, for example, can also be applied to a system that integrates unmanned aerial vehicles, satellite communication systems, high altitude platform station (HAPS) communication and the like non-terrestrial network (NTN) into a ground mobile communication network. In addition, it can also be applicable to low frequency (sub 6 GHz) and high frequency (above 6 GHz) communication scenarios. It can be understood that the system architecture described in the embodiments of the present application is for more clearly illustrating the technical solutions provided by the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application.

[0094] Figure 1 An architecture diagram suitable for a communication system of the embodiments of the present application is shown. The communication system includes at least one network device and at least one terminal device.Figure 1 The network device and the plurality of terminal devices are examples. The terminal devices herein can be cellular phones, smart phones, portable computers, hand-held communication devices, hand-held computing devices, satellite radios, global positioning systems, personal digital assistants (PDAs), and / or any other suitable device for communicating over a wireless communication system, and can all be in communication with the network device. The terminal devices can all be capable of communicating with the network device. Of course, Figure 1 The number of terminal devices and network devices in the communication system is only an example, and can be less or more. The terminal devices and network devices involved in the communication system are described in detail below. Figure 1

[0095] I. Terminal device

[0096] The terminal device mentioned in the embodiments of the present application can be a device with wireless transceiving function. The terminal device can communicate with an access network device (or also referred to as an access device or a network device) in a radio access network (RAN). The terminal device can also be referred to as a user equipment (UE), an access terminal, a terminal, a subscriber unit, a subscriber station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a user agent, or a user apparatus, etc. In a possible implementation manner, the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; or can be deployed on water, including a ship; or can be deployed in the air, such as an airplane, a balloon or a satellite, etc. In another possible implementation manner, the terminal device can be a handheld device, a vehicle-mounted device, a wearable device, a sensor, a terminal in Internet of Things, a terminal in Internet of Vehicles, a drone, a terminal device in 5G network or future network, etc. with wireless communication function, and the embodiments of the present application do not limit this. In yet another possible implementation manner, the terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in remote medical treatment, a wireless terminal in smart power grid, a wireless terminal in smart city, or a wireless terminal in smart home, etc.

[0097] ​In the embodiments of the present application, the apparatus for implementing the function of the terminal device can be the terminal device, or can be an apparatus capable of supporting the terminal device to implement the function, for example, a chip system. The apparatus can be installed in the terminal device or used in matching with the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or can include the chip and other discrete devices. For the convenience of description, in the following description of some examples, the apparatus for implementing the function of the terminal device is taken as an example to describe the technical solutions provided in the embodiments of the present application.

[0098] II. Network device

[0099] The network device can be a kind of device deployed in a wireless access network to provide wireless communication services for terminal devices. The network device can also be referred to as an access network device, an access device, a RAN node, or a RAN device, etc. Illustratively, the network device can be a base station, an evolved NodeB (eNodeB), a next generation NodeB (gNB), a next generation evolved NodeB (ng-eNB), or a network device in 6G communication, etc. The network device can be any kind of device with wireless transceiver function, including but not limited to the above-mentioned base stations (including base stations deployed on satellites). The network device can also be a device with base station function in 6G. As an example, the network device can be an access node, a wireless relay node, a wireless backhaul node, etc. in a wireless-fidelity (Wi-Fi) system. As another example, the network device can be a wireless controller in a cloud radio access network (CRAN) scenario. As yet another example, the network device can be a wearable device or a vehicle-mounted device, etc. that can provide wireless communication services. As yet another example, the network device can also be a small station, a transmission reception point (TRP) (or also referred to as a transmission point), etc. The network device can also be a primary station, a secondary station, a motor slideretainer (MSR) node, a home base station, an access point (AP), a baseband unit (BBU), a remote radio unit (RRU), an active antenna unit (AAU), a remote radio head (RRH), a central unit (CU), a distributed unit (DU), a radio unit (RU), a positioning node, etc. In systems of different wireless access technologies, the names of devices with network device functions can be different, and the embodiments of the present application will not be listed one by one.

[0100] The network device can be fixed or mobile. For example, a helicopter or a drone can be configured to act as a mobile network device, and one or more cells can move according to the location of the mobile network device. In other examples, the helicopter or the drone can be configured to act as a device that communicates with another network device.

[0101] In some deployments of the network device, the network device can include a centralized unit (CU) and a distributed unit (DU), etc. As part of the protocol layers of the network device are placed in the CU for centralized control, the remaining part or all of the protocol layers are distributed in the DU, which is controlled by the CU. In some other deployments of the network device, the CU can also be divided into a CU-control plane (CP) and a CU-user plane (UP), etc. In some other deployments of the network device, the network device can also be an open radio access network (ORAN / O-RAN) architecture. When the network device is an ORAN architecture, the network device can be a functional entity or a module in the ORAN, etc. For example, the network device can be a combination of one or more of a CU, a DU, or a RU. In the ORAN system, the CU can also be referred to as an open (O)-CU, the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, etc. The deployment modes of the network device listed here are only examples, and as the standard technology evolves, there can be other deployment forms of the network device, which are not limited by the embodiments of the present application.

[0102] In some deployments, multiple RAN nodes cooperate to assist terminals to implement wireless access, and different RAN nodes implement part of the functions of the access network respectively. For example, the RAN node can be a CU, a DU, a CU-CP, a CU-UP, or a RU, etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a BBU. The RU can be included in a radio frequency device or a radio frequency unit, such as an RRU, an AAU, or an RRH.

[0103] The RAN node can support one or more types of fronthaul interfaces, different fronthaul interfaces respectively corresponding to DUs and RUs having different functions. If the fronthaul interface between the DU and the RU is a common public radio interface (CPRI), the DU is configured to implement one or more of baseband functions, and the RU is configured to implement one or more of radio frequency functions. If the fronthaul interface between the DU and the RU is another interface, relative to the CPRI, one or more of the partial baseband functions of the downlink and / or uplink, such as, for the downlink, one or more of precoding, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / add cyclic prefix (CP), are moved from the DU to the RU for implementation, and for the uplink, one or more of digital beamforming (BF), or fast Fourier transform (FFT) / remove cyclic prefix (CP) are moved from the DU to the RU for implementation. In a possible implementation, the interface can be an enhanced common public radio interface (eCPRI). Under the eCPRI architecture, the splitting manner between the DU and the RU is different, corresponding to different categories (Cat) of eCPRI, such as eCPRI Cat A, B, C, D, E, F.

[0104] Taking eCPRI Cat A as an example, for downlink transmission, with layer mapping as the cut, the DU is configured to implement layer mapping and one or more functions (i.e., one or more of encoding, rate matching, scrambling, modulation, layer mapping) before layer mapping, while other functions (e.g., one or more of resource element (RE) mapping, digital beamforming (BF), or inverse fast Fourier transform (IFFT) / adding cyclic prefix (CP)) after layer mapping are implemented in the RU. For uplink transmission, with de-RE mapping as the cut, the DU is configured to implement de-mapping and one or more functions (i.e., one or more of decoding, de-rate matching, de-scrambling, de-modulation, inverse discrete Fourier transform (IDFT), channel equalization, de-RE mapping) before de-mapping, while other functions (e.g., one or more of digital BF or fast Fourier transform (FFT) / CP removal) after de-mapping are implemented in the RU. It can be understood that the function description of the DU and the RU corresponding to various types of eCPRI can refer to the eCPRI protocol, which is not described here.

[0105] In a possible design, the processing unit in the BBU for implementing baseband functions is referred to as a baseband high (BBH) unit, and the processing unit in the RRU / AAU / RRH for implementing baseband functions is referred to as a baseband low (BBL) unit.

[0106] In different systems, the CU (or CU-CP and CU-UP), DU, or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. Any of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0107] In the embodiments of this application, the device for implementing the function of the network device can be a network device, or a device capable of supporting the network device to implement the function, such as a chip system. The device can be installed in the network device or used with the network device. For ease of description, the device for implementing the function of the network device is taken as a base station to describe the technical solutions provided by the embodiments of this application when some specific examples are involved.

[0108] The network device and / or the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water; and can also be deployed on aircraft, balloons and satellites in the air. The embodiments of this application do not limit the scenarios in which the network device and the terminal device are located. In addition, the terminal device and the network device can be hardware devices, or software functions running on special hardware, general hardware, such as virtualized functions instantiated on a platform (for example, a cloud platform), or entities including special or general hardware devices and software functions. The specific forms of the terminal device and the network device are not limited in this application.

[0109] In addition, Figure 1 The communication between the network device and each terminal device in the illustrated communication system can also be represented in another form. As Figure 2 As shown, the terminal device 10 includes a processor 101, a memory 102 and a transceiver 103, and the transceiver 103 includes a transmitter 1031, a receiver 1032 and an antenna 1033. The network device 20 includes a processor 201, a memory 202 and a transceiver 203, and the transceiver 203 includes a transmitter 2031, a receiver 2032 and an antenna 2033. The receiver 1032 can be used to receive transmission control information through the antenna 1033, and the transmitter 1031 can be used to send transmission feedback information to the network device 20 through the antenna 1033. The transmitter 2031 can be used to send transmission control information to the terminal device 10 through the antenna 2033, and the receiver 2032 can be used to receive transmission feedback information sent by the terminal device 10 through the antenna 2033.

[0110] Figure 3A is a schematic diagram of an ORAN system provided by an embodiment of this application. As Figure 3A As shown, the network device is also called an access network device. The access network device (RAN, for example, can be an eNB or a gNB or a next-generation access network device) communicates with the core network (CN) through a backhaul link and communicates with the user equipment (UE) through an air interface.

[0111] Specifically, a baseband unit (BBU) in an access network device communicates with a core network through a backhaul, and a radio unit (RU) in the access network device communicates with at least one UE through an air interface. The BBU communicates with at least one RU through a fronthaul, and the BBU and the RU can be co-located or not co-located.

[0112] The BBU includes at least one control unit (CU) and at least one distributed unit (DU), which can communicate through at least one midhaul.

[0113] Figure 3B is a network element function division and protocol layer structure diagram of an ORAN device provided by an embodiment of the present application. In some examples, the CU is a logical node that carries the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, the packet data convergence protocol (PDCP) layer, and other control functions of the access network device. The CU is connected to network nodes such as a core network through some interfaces, which can be E2 interfaces and the like. Optionally, the CU can have part of the functions of the core network. The CU (for example, the PDCP layer and higher layers) is connected to the DU (for example, the RLC layer and lower layers) through some interfaces, which can be F1 interfaces and the like. In some examples, these interfaces (for example, the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (for example, interface management, system information management, UE context management, RRC message transmission, and the like). F1AP is an application protocol of the F1 interface, which defines signaling procedures of the F1 in some examples. The F1 interface supports the control plane F1-C and the user plane F1-U.

[0114] In some examples, the CU can be split into a CU-CP (control unit-control plane) and a CU-UP (control unit-user plane), where the CU-CP is a logical node carrying the RRC layer and the PDCP-C (control plane part of PDCP) layer, used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network used to implement the control plane function. The network element in the core network used to implement the control plane function can be an access and mobility function network element, such as an access and mobility management function (AMF) in a 5G system. The AMF network element is used to be responsible for mobility management in a mobile network, such as location updating of a terminal device, registration of the terminal device to a network, handover of the terminal device, and the like. The CU-UP is a logical node carrying the SDAP layer and the PDCP-U (User plane part of PDCP) layer, used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network used to implement the user plane function. The network element in the core network used to implement the user plane function, for example, a user plane function (UPF) in a 5G system, is used to be responsible for forwarding and receiving data in a terminal device. The above configuration of the CU and the DU is only an example, and the CU and the DU can be configured to have functions as needed. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layers. For example, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the service type or other system requirements, for example, according to the delay. The functions that need to meet the delay requirement are arranged in the DU, and the functions that do not need to meet the delay requirement are arranged in the CU.

[0115] In some examples, a DU is a logical node that hosts radio link control (RLC) layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU is connected with the RUs through some interfaces, which can be a fronthaul interface. In some examples, the Higher PHY layer includes parts of PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.

[0116] In some examples, an RU is a logical node that hosts lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, an RU can be a 3GPP transmission reception point (TRP) or a remote radio head (RRH) or other similar functional entity. In some examples, the Low-PHY includes parts of PHY processing, such as fast Fourier transform (FFT), inverse fast Fourier transformation (IFFT), digital beamforming and filtering, etc. An RU communicates with one or more UEs through a wireless link.

[0117] The DU and the RU can be co-located or not. The DU and the RU exchange control plane information and user plane information via a Lower-Layer Split CUS-Plane (LLS-CUS) interface through a fronthaul link. The LLS-CUS can include a LLS-C interface and a LLS-U interface that provide a control plane (C-Plane) and a user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and the RU. The DU and the RU exchange management information via a LLS-M interface of the fronthaul link, and the management plane (M-Plane) refers to non-real-time management operations between the DU and the RU.

[0118] The DU and the RU can cooperate to jointly implement the functions of the PHY layer. One DU can be connected with one or more RUs. The functions of the DU and the RU can be configured in multiple ways according to design. For example, the DU is configured to implement baseband functions, and the RU is configured to implement radio frequency functions. For another example, the DU is configured to implement high-layer functions in the PHY layer, and the RU is configured to implement low-layer functions in the PHY layer or implement the low-layer functions and radio frequency functions. The high-layer functions in the PHY layer can include a part of functions of the PHY layer that are closer to the MAC layer, and the low-layer functions in the PHY layer can include another part of functions of the PHY layer that are closer to the radio frequency side.

[0119] In different systems, the CU (or CU-CP and CU-UP), the DU, or the RU can also have different names, but those skilled in the art can understand their meanings. For example, in an ORAN system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, the CU-CP, the CU-UP, the DU, and the RU are taken as examples for description in this application.

[0120] It should be noted that the network application architecture and the service scenario described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network application architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0121] In order to facilitate understanding of the solutions provided by the embodiments of the present application, the related concepts involved in the embodiments of the present application are introduced as follows:

[0122] 1. Antenna port

[0123] The antenna port is a logical concept, and one antenna port does not have a direct correspondence with one physical antenna. The antenna port is usually associated with a reference signal, and its meaning can be understood as a transceiving interface on the channel experienced by the reference signal. Therefore, in some cases, the antenna port can also be referred to as a reference signal port or a pilot port. For a low-frequency system, one antenna port can correspond to one or more antenna elements, and these elements jointly transmit the reference signal, and the receiving end can regard them as a whole without distinguishing these elements. For a high-frequency system, the antenna port can correspond to a beam, and similarly, the receiving end only needs to regard the beam as an interface without distinguishing each element.

[0124] In the embodiments of the present application, a plurality of ports contained in one sounding reference signal resource can be referred to as sounding reference signal ports, or can also be referred to as antenna ports.

[0125] 2. Beam

[0126] The embodiment of the present application can be embodied in the NR protocol as a spatial domain filter, or a spatial filter, or a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, or quasi-colocation (QCL) information, a QCL assumption, a QCL indication, etc. The beam can be indicated by a transmission configuration indication state (TCI-state) parameter, or indicated by a spatial relation parameter. Therefore, in the present application, the beam can be replaced by a spatial domain filter, a spatial filter, a spatial domain parameter, a spatial parameter, a spatial domain setting, a spatial setting, QCL information, a QCL assumption, a QCL indication, a TCI-state (DL TCI-state, UL TCI-state), a spatial relation, etc. The above terms are also equivalent to each other. The beam can also be replaced by other terms representing the beam, which is not limited in the present application.

[0127] The beam for transmitting a signal can be referred to as a transmission beam (Tx beam), or a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter or a spatial transmission parameter, a spatial domain transmission setting or a spatial transmission setting. The downlink transmission beam can be indicated by a TCI-state.

[0128] The beam for receiving a signal can be referred to as a reception beam (Rx beam), and can also be referred to as a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter or a spatial reception parameter, a spatial domain reception setting or a spatial reception setting. The uplink transmission beam can be indicated by a spatial relation, an uplink TCI-state, or an SRS resource (indicating the transmission beam using the SRS). Therefore, the uplink beam can also be replaced by the SRS resource.

[0129] The transmission beam can refer to the distribution of signal strength in different directions in space after the signal is transmitted by the antenna, and the reception beam can refer to the distribution of signal strength in different directions in space of the wireless signal received by the antenna. The beam is generally corresponding to a resource, for example, when performing beam measurement, the network device measures different beams through different resources, and the terminal device feeds back the measured resource quality, so that the network device knows the quality of the corresponding beam. In data transmission, the beam information is also indicated by its corresponding resource. For example, the network device indicates the information of the terminal device downlink data channel (physical downlink shared channel, PDSCH) beam through the TCI field in the downlink control information (downlink control information, DCI).

[0130] Optionally, multiple beams with same or similar communication characteristics are regarded as one beam. One beam can include one or more antenna ports for transmitting data channels, control channels, sounding signals, and the like. One or more antenna ports forming one beam can also be regarded as one antenna port set. In embodiments of the present application, unless otherwise specified, a beam refers to a transmitting beam of a network device. In beam measurement, each beam of the network device corresponds to one resource, and therefore the beam corresponding to the resource can be uniquely identified by the index of the resource. In addition, a beam can be a wide beam, or a narrow beam, or other types of beams. The technology for forming a beam can be beamforming technology or other technologies. Beamforming technology refers to adjusting the amplitude and / or phase of a signal so that the radiation signal radiated by the antenna array has a certain directivity, which can achieve higher antenna array gain. The main lobe of the radiation pattern of the antenna array can be referred to as a beam. The beamforming technology can be digital beamforming technology, analog beamforming technology, or hybrid digital / analog beamforming technology, etc.

[0131] In the beamforming technology, the signal is filtered by a spatial domain transmission filter to realize the adjustment of amplitude and / or phase, and different spatial domain transmission filters with different spatial filtering parameters can realize beams in different directions. In the embodiments of the present application, the spatial filtering parameter can be replaced by a beam, or the spatial filtering parameter can be replaced by a spatial domain transmission filter. The spatial domain transmission filter can also be referred to as a spatial filter. Specifically, the beamforming technology includes digital beamforming (DBF) technology, analog beamforming (ABF) technology and hybrid beamforming (HBF) technology. Among them, the DBF technology has multiple digital processing channels, and the phase (or amplitude and phase) of the signal is adjusted in the digital domain through each digital processing channel, so that the radiation signal radiated by the antenna has directionality. Therefore, for the DBF technology, the function of the above-mentioned spatial domain transmission filter can be realized through multiple digital processing channels. The ABF technology can simultaneously send signals through an antenna array composed of multiple antenna elements, each antenna element corresponds to a phase shifter, and by adjusting the phase of the phase shifter corresponding to each antenna element, the radiation signal radiated by the antenna array has directionality. Therefore, for the ABF technology, the function of the above-mentioned spatial domain transmission filter can be realized through multiple phase shifters corresponding to multiple elements in the antenna array. The HBF technology is a combination of ABF technology and DBF technology, which has multiple digital processing channels and multiple analog phase shifters. Therefore, for the hybrid beamforming technology, the function of the above-mentioned spatial domain transmission filter can be realized through multiple phase shifters corresponding to multiple elements in the antenna array and multiple digital processing channels. However, the present application is not limited thereto, and the above-mentioned spatial domain transmission filter can also be realized by other technologies.

[0132] It can be understood that one or more antenna ports forming a beam can be regarded as an antenna port set or an antenna port group. For the convenience of description, hereinafter, a beam is uniformly formed by one antenna port, and one or more digital ports forming a beam are referred to as a port group.

[0133] 3. Reference signal

[0134] According to the protocol of long term evolution LTE / NR, in the physical layer, the uplink communication includes the transmission of uplink physical channel and uplink signal. The uplink physical channel includes random access channel (PRACH), uplink control channel (PUCCH), uplink data channel (PUSCH) and the like, and the uplink signal includes channel sounding signal SRS, uplink control channel demodulation reference signal (PUCCH-DMRS), uplink data channel demodulation reference signal (PUSCH-DMRS), uplink phase noise tracking signal (PTRS), uplink positioning signal (uplink positioning RS) and the like. The downlink communication includes the transmission of downlink physical channel and downlink signal. The downlink physical channel includes broadcast channel (PBCH), downlink control channel (PDCCH), downlink data channel (PDSCH) and the like, and the downlink signal includes primary synchronization signal (PSS) / secondary synchronization signal (SSS), downlink control channel demodulation reference signal (PDCCH-DMRS), downlink data channel demodulation reference signal (PDSCH-DMRS), phase noise tracking signal (PTRS), channel state information reference signal (CSI-RS / CSIRS), cell signal (CRS) (NR does not have), time / frequency tracking reference signal (TRS) (LTE does not have), LTE / NR positioning signal (positioning RS) and the like.

[0135] Reference signals can be used for channel measurement, channel estimation, or beam quality monitoring, etc. According to the LTE or NR protocol, the uplink reference signal may, for example, include a channel sounding signal (sounding reference signal, SRS), PUCCH-DMRS, PUSCH-DMRS, PTRS, uplink positioning RS, etc.; the downlink reference signal may, for example, include: synchronization signal block (synchronization signal block, SSB), physical downlink control channel (physical downlink control channel, PDCCH)-demodulation reference signal (PDCCH-DMRS), PDSCH-DMRS, PTRS, CSI-RS, CRS, time / frequency domain tracking synchronization signal (tracking reference signal, TRS) in NR, downlink positioning RS, etc.

[0136] 4、Sounding reference signal

[0137] Sounding reference signal (SRS): is an uplink channel sounding signal, sent by the terminal, received by the base station. The sending method of SRS, including time-frequency resource, sending beam, sending power, etc., is configured by the network device for the terminal. In the protocol framework of 3GPP R15, the network device can configure one or more SRS resource sets for the terminal device, and each SRS resource set has one or more SRS resources (SRS resource). In addition, in 3GPP R15, different SRS resource sets undertake different functions, and R15 supports four functions: {beamManagement, codebook, nonCodebook, antennaSwitching}, that is, {beam management, codebook, nonCodebook, antenna switching}. The network device notifies the terminal of the function of the SRS resource set by configuring the usage of each set through RRC. In some places in this application, the abbreviation {BM, CB, NCB, AS} will be used. When the usage is antennaSwitching, it is generally used to obtain complete uplink channel information. If the channel has uplink / downlink consistency, the downlink transmission channel (or downlink transmission precoding) can be obtained through uplink channel measurement.

[0138] 5、HBF technology

[0139] Utilizing more spectrum resources is an important means to improve the capacity of wireless channels, and the 6G frequency band has become the next spectrum resource available for wireless communication. As the frequency band is higher, the signal energy transmission loss is greater under the same transmission distance. In order to overcome this problem, a larger antenna array is usually used at the base station side to perform weighting processing on the transmitted signal to obtain higher array gain and thus improve the transmission energy of the signal.

[0140] To reduce the implementation cost, as shown in Figure 4A The base station side large-scale antenna array usually adopts the HBF architecture, that is, one digital channel drives multiple antenna elements through multiple phase shifters, and the base station side downlink signal transmission usually adopts two-stage weights in the analog and digital domains. Under the HBF architecture, the base station usually adopts multiple analog beams to implement coverage of different areas in the cell, and different analog beams cover users in different areas. Considering the rich multipath of the channel environment in the medium and low frequency band, the same user can be served by different analog beams, that is, in addition to the optimal analog beam seen by the user, other non-optimal analog beams can also provide data transmission for the user at a lower rate. When there are multiple users to be scheduled in the cell, in order to enable simultaneous transmission of multiple users in the cell under resource multiplexing, the user needs to measure the channel state information under multiple analog beams, thereby providing input for data scheduling of the base station.

[0141] In the NR protocol, SRS can be used for acquisition of uplink channel state information (CSI) based on codebook or non-codebook transmission, channel measurement for downlink data transmission weight calculation, and uplink beam management. The SRS resource configuration at the base station side is divided into two levels of resource set Resource Set and resource Resource.

[0142] When SRS is used for downlink data transmission weight measurement, and the number of downlink receiving antenna ports is greater than the number of uplink transmitting antenna ports, multiple SRS resources are configured for the user, different SRS resources transmit SRS signals using different antenna ports (SRS port), and the base station side obtains the downlink channel measurement channel based on the SRS signals transmitted by multiple SRS resources, and calculates the weight for downlink data transmission based on the uplink-downlink channel reciprocity assumption. As shown in Figure 4B, for 2T4R scenario (so-called 2T4R refers to a scenario of using two transmitter antennas and four receiver antennas in wireless communication), a SRS resourceSet with usage = antennaSwitching is configured for a user, containing two SRS resources, and each SRS resource contains two SRS ports; the time-frequency resources allocated by the first SRS resource are used to send SRS signals by using antenna port 1 and antenna port 2, and the time-frequency resources allocated by the second SRS resource are used to send SRS signals by using antenna port 3 and antenna port 4. The base station side performs SRS reception measurement on the time-frequency resources allocated by the two SRS resources, and calculates the downlink data transmission weight vector.

[0143] Based on the current NR protocol, such as Figure 4C , the network device configures the specific information of SRS transmission for the terminal device in the form of SRS resource set; wherein one SRS resource set contains one or more SRS resources, and one SRS resource contains one or more SRS ports. The terminal device can periodically send SRS on the corresponding time-frequency resources, and the network device receives SRS at different times by using different analog beam scanning. However, the terminal device is not aware of the specific receiving beam information of the network device for SRS, and for some beams, the network device will not use the beam to receive the uplink signal of the user or send the user-level downlink signal due to the poor channel quality between the user and the beam. At this time, the SRS sent based on these beams not only increases the power consumption of the terminal device, but also generates additional inter-cell interference.

[0144] Therefore, in order to reduce the power consumption of the terminal device and reduce the inter-cell interference of SRS, the present application provides an information transmission method and a communication device. The information transmission method and the communication device provided by the embodiments of the present application are described in detail below.

[0145] Figure 5 is a flowchart of an information transmission method provided by an embodiment of the present application. As shown in Figure 5 , the information transmission method comprises the following steps S501 and S502. Figure 5 The method execution subject shown in Figure 5 The method execution subject shown in Figure 5 The method execution subject shown in

[0146] S501, the network device sends first configuration information to the terminal device, the first configuration information being used for indicating a muting manner of the SRS.

[0147] In the embodiments of the present application, the network device can configure one or more SRS resource sets for the terminal device through an RRC configuration message or an RRC reconfiguration message, and the SRS resource set is used for allocating resources for SRS transmission. One SRS resource set contains one or more SRS resources, and the SRS resource contains time domain resources or frequency domain resources used for SRS transmission; one SRS resource contains one or more antenna ports used for SRS transmission. That is, it can be understood that one SRS resource set indicates one or more time-frequency domain resources used for SRS transmission and one or more antenna ports used for SRS transmission. Subsequently, the terminal device can send SRS on the corresponding time-frequency resources through the antenna port, and the network device can receive SRS at different times by using different analog beam scanning.

[0148] However, the terminal device is not aware of the specific receiving beam information of the network device for the SRS. For some beams, due to the poor channel quality between the user and the network device, the network device will not use the beam to receive the uplink signal of the user or send the downlink signal of the user in the future. At this time, the SRS transmitted based on these beams not only increases the power consumption of the terminal device, but also produces additional inter-cell interference. Therefore, the network device can further send first configuration information to the terminal device, and the first configuration information is used for indicating a muting manner (i.e., muting pattern) of the SRS. Here, the muting manner of the SRS can be understood as indicating the terminal device that SRS does not need to be sent at some SRS transmission occasions, so as to reduce the power consumption of the terminal device and reduce the inter-cell interference of the SRS. The first configuration information and the one or more SRS resource sets can be configured by the same signaling or different signaling, which is not limited here.

[0149] Specifically, the muting manner of the SRS can be one or more of the following: (1) at least one SRS transmission occasion associated with the SRS resource set does not send SRS; (2) at least one SRS transmission occasion associated with the SRS resource does not send SRS; (3) at least one port of the SRS resource does not send SRS at least one SRS transmission occasion. Of course, the muting manner of the SRS can also adopt other manners, which is not limited here. The following describes the above three muting manners of the SRS in detail. The SRS transmission occasion can be time domain equally spaced SRS transmission occasions, time domain equally spaced and adjacent SRS transmission occasions, or periodic SRS transmission occasions, which are not limited here.

[0150] Specifically, the SRS transmission occasion can also be described as SRS transmission, or SRS transmission opportunity, or SRS sending, the SRS counter counts each SRS transmission occasion, and the counting manner is as follows, n SRS = i represents the ith SRS transmission associated with the SRS resource:

[0151] For the case of an SRS resource configured as periodic or semi-persistent by the higher-layer parameter resourceType, the SRS counter is given by

[0152]

[0153] for slots that satisfy The periodicity T SRS in slots and slot offset T offset .

[0154] The specific symbols are shown in Table 1 as follows:

[0155] Table 1

[0156]

[0157] Mode one: at least one SRS transmission occasion associated with the SRS resource set does not send SRS.

[0158] In a specific implementation, mode one can be understood as that all SRS resources included in the SRS resource set do not send SRS in at least one same SRS transmission occasion. Since the SRS resource set can send SRS in a frequency hopping or non-frequency hopping manner, the following will be described for different cases:

[0159] Case 1: the SRS resource set sends SRS in a non-frequency hopping manner.

[0160] Exemplarily, the SRS resource set includes a first SRS resource, the first SRS resource is associated with N SRS transmission occasions, M SRS transmission occasions in the N SRS transmission occasions do not send SRS, N and M are positive integers, and M is less than or equal to N. The SRS resource set also includes a second SRS resource, the second SRS resource is associated with P SRS transmission occasions, Q SRS transmission occasions in the P SRS transmission occasions do not send SRS, P and Q are positive integers, and Q is less than or equal to P.

[0161] The timing of the N SRS transmissions associated with the first SRS resource is the same as the timing of the P SRS transmissions associated with the second SRS resource; the M SRS transmissions not used for sending SRS in the N SRS transmissions associated with the first SRS resource are the same as the Q SRS transmissions not used for sending SRS in the P SRS transmissions associated with the second SRS resource.

[0162] Optionally, the SRS transmission timing associated with the first SRS resource is the same as the SRS transmission timing associated with the second SRS resource. This can be understood as the SRS transmission timing numbers being the same. For example, if the four SRS transmission timings associated with the first SRS resource are the i-th, i+1-th, i+2-th, and i+3-th SRS transmissions, then the four SRS transmission timings associated with the second SRS resource are also the i-th, i+1-th, i+2-th, and i+3-th SRS transmissions.

[0163] like Figure 6A As shown, the SRS resource set contains two SRS resources: the first SRS resource and the second SRS resource. The first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4. Assuming N = P = 4 and M = Q = 1, this means that the first SRS resource is associated with 4 SRS transmission opportunities, and one of these 4 SRS transmission opportunities (i.e., the second SRS transmission opportunity) does not send an SRS. Similarly, the second SRS resource is also associated with 4 SRS transmission opportunities, and one of these 4 SRS transmission opportunities (i.e., the second SRS transmission opportunity) does not send an SRS.

[0164] Since the four SRS transmission times associated with the first SRS resource are the same as the four SRS transmission times associated with the second SRS resource, and the one SRS transmission time not used to send SRS among the four SRS transmission times associated with the first SRS resource (i.e., the second SRS transmission time) is also the same as the one SRS transmission time not used to send SRS among the four SRS transmission times associated with the second SRS resource (i.e., the second SRS transmission time), then Method 1 can be understood as follows: the SRS resource set is associated with four SRS transmission times, and the second SRS transmission time does not send SRS, that is, the first SRS resource does not use antenna port 1 and antenna port 2 to send SRS during the second SRS transmission time, and the second SRS resource does not use antenna port 3 and antenna port 4 to send SRS.

[0165] Regarding scenario 1 above, in one possible implementation, the first SRS resource is associated with T groups of SRS transmission opportunities, each group including N SRS transmission opportunities, where T is a positive integer; and / or, the second SRS resource is associated with K groups of SRS transmission opportunities, each group including P SRS transmission opportunities, where K is a positive integer. This can be understood as grouping the multiple SRS transmission opportunities associated with the SRS resource set, with each group using the same silent mode. Based on this method, the silent mode of SRS can be indicated by grouping, which is beneficial for improving communication efficiency.

[0166] like Figure 6B As shown, the SRS resource set contains two SRS resources: the first SRS resource and the second SRS resource. The first SRS resource includes antenna port 1 and antenna port 2, and the second SRS resource includes antenna port 3 and antenna port 4. Assuming N = P = 4, M = Q = 1, and T = K = 2, this indicates that the SRS resource set is associated with two sets of SRS transmission opportunities. Each set of SRS transmission opportunities includes four SRS transmission opportunities, and the second SRS transmission opportunity does not transmit SRS. That is, in each set of SRS transmission opportunities, the first SRS resource does not use antenna ports 1 and 2 to transmit SRS during the second SRS transmission opportunity, and the second SRS resource also does not use antenna ports 3 and 4 to transmit SRS.

[0167] Scenario 2: The SRS resource set uses frequency hopping to send SRS.

[0168] This can be understood as follows: Building upon Case 1, each SRS resource in the SRS resource set is associated with SRS transmissions for multiple sub-bands. Each SRS transmission opportunity only transmits the SRS for one sub-band. Therefore, a set of SRS transmission opportunities associated with the SRS resource in this case refers to the SRS transmission opportunities corresponding to all sub-bands, i.e., full-bandwidth SRS transmission. For example, assuming the SRS resource contains 17 sub-bands and uses frequency hopping to transmit SRS, it can occupy different frequency domain bandwidths to transmit 17 SRS signals, thus achieving full-bandwidth SRS transmission. In this case, a set of SRS transmission opportunities associated with the SRS resource would include 17 SRS transmission opportunities.

[0169] Exemplarily, the SRS resource set contains a first SRS resource, the first SRS resource contains a plurality of subbands, the first SRS resource is associated with X1 groups of SRS transmission occasions, each group of SRS transmission occasions in the X1 groups of SRS transmission occasions includes SRS transmission occasions of all subbands in the first SRS resource, X1 is an integer greater than 1; Y1 groups of SRS transmission occasions in the X1 groups of SRS transmission occasions do not send SRS, Y1 is a positive integer, and Y1 is less than or equal to X1. The SRS resource set also contains a second SRS resource, the second SRS resource contains a plurality of subbands, the second SRS resource is associated with X2 groups of SRS transmission occasions, each group of SRS transmission occasions in the X2 groups of SRS transmission occasions includes SRS transmission occasions of all subbands in the second SRS resource, X2 is an integer greater than 1; Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions do not send SRS, Y2 is a positive integer, and Y2 is less than or equal to X2.

[0170] The X1 groups of SRS transmission occasions associated with the first SRS resource are the same as the X2 groups of SRS transmission occasions associated with the second SRS resource; Y1 groups of SRS transmission occasions in the X1 groups of SRS transmission occasions associated with the first SRS resource that are not used for sending SRS are the same as Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions associated with the second SRS resource that are not used for sending SRS.

[0171] Optionally, the SRS transmission occasions associated with the first SRS resource are the same as the SRS transmission occasions associated with the second SRS resource, which can be understood as the same SRS transmission occasion number, for example, the 4 SRS transmission occasions associated with the first SRS resource are the i-th, i+1-th, i+2-th and i+3-th SRS transmission occasions, and the 4 SRS transmission occasions associated with the second SRS resource are also the i-th, i+1-th, i+2-th and i+3-th SRS transmission occasions.

[0172] As Figure 6CAs shown, the SRS resource set contains 2 SRS resources, which are a first SRS resource and a second SRS resource respectively; the first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4. The SRS resource set transmits SRS in a frequency hopping manner, assuming that X1=X2=4 and Y1=Y2=1, it means that the first SRS resource is associated with 4 groups of SRS transmission occasions, and 1 group of SRS transmission occasions (i.e., the first group of SRS transmission occasions) in the 4 groups of SRS transmission occasions does not transmit SRS, wherein each group of SRS transmission occasions refers to SRS transmission of the full bandwidth (i.e., SRS transmission occasions corresponding to all subbands). The second SRS resource is also associated with 4 groups of SRS transmission occasions, and 1 group of SRS transmission occasions (i.e., the first group of SRS transmission occasions) in the 4 groups of SRS transmission occasions does not transmit SRS, wherein each SRS transmission occasion refers to SRS transmission of the full bandwidth (i.e., SRS transmission occasions corresponding to all subbands).

[0173] Since the 4 groups of SRS transmission occasions associated with the first SRS resource are the same as the 4 groups of SRS transmission occasions associated with the second SRS resource, and the 1 group of SRS transmission occasions (i.e., the first group of SRS transmission occasions) in the 4 groups of SRS transmission occasions associated with the first SRS resource that is not used for transmitting SRS is also the same as the 1 group of SRS transmission occasions (i.e., the first group of SRS transmission occasions) in the 4 groups of SRS transmission occasions associated with the second SRS resource that is not used for transmitting SRS, at this time, mode one can be understood as: the SRS resource set is associated with 4 groups of SRS transmission occasions, and the first group of SRS transmission occasions in the 4 groups of SRS transmission occasions associated with the SRS resource set does not transmit SRS, wherein here each group of SRS transmission occasions refers to SRS transmission of the full bandwidth (i.e., SRS transmission occasions corresponding to all subbands), that is, in the first group of SRS transmission occasions, the first SRS resource does not use antenna port 1 and antenna port 2 to transmit SRS of the full bandwidth, and the second SRS resource also does not use antenna port 3 and antenna port 4 to transmit SRS of the full bandwidth.

[0174] For the above case 2, in a possible implementation, the first SRS resource is associated with Z1 SRS transmission occasion sets, each of which includes the X1 group of SRS transmission occasions, and Z1 is a positive integer; and / or the second SRS resource is associated with Z2 SRS transmission occasion sets, each of which includes the X2 group of SRS transmission occasions, and Z2 is a positive integer. It can be understood that the SRS transmission occasions of the multiple subbands associated with each SRS resource in the SRS resource set are regarded as a group of SRS transmission occasions, and one-level grouping of SRS transmission occasions is realized; further, multiple groups of SRS transmission occasions can be grouped in two levels to obtain multiple SRS transmission occasion sets, each of which uses the same muting mode. Based on this mode, for the frequency hopping mode, the muting mode of SRS can also be indicated in groups, which is beneficial to improve the communication efficiency.

[0175] As shown in Figure 6D The SRS resource set contains 2 SRS resources, which are the first SRS resource and the second SRS resource; the first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4. Assuming that X1=X2=4, Y1=Y2=1, Z1=Z2=2, it means that the SRS resource set is associated with 2 SRS transmission occasion sets, each of which includes 4 groups of SRS transmission occasions, and each group of SRS transmission occasions refers to the SRS transmission of the full bandwidth (i.e. the SRS transmission occasion corresponding to all subbands); and the first group of SRS transmission occasions in the 4 groups of SRS transmission occasions does not send SRS, that is, in each SRS transmission occasion set, the first SRS resource does not use antenna port 1 and antenna port 2 to send SRS of the full bandwidth on the first group of SRS transmission occasions, and the second SRS resource also does not use antenna port 3 and antenna port 4 to send SRS of the full bandwidth.

[0176] Mode two: at least one SRS transmission occasion associated with the SRS resource does not send SRS.

[0177] In a specific implementation, mode two can be understood as that at least one SRS transmission occasion associated with the same SRS resource does not send SRS, or at least one SRS transmission occasion associated with different SRS resources does not send SRS. The following will be described for different cases:

[0178] Case A: at least one SRS transmission occasion associated with the same SRS resource does not send SRS.

[0179] (1) The SRS resource sends SRS in a non-frequency hopping manner.

[0180] For example, the SRS resource set includes a first SRS resource associated with N SRS transmission opportunities, of which M SRS transmission opportunities do not send SRS, where N and M are positive integers, and M is less than or equal to N.

[0181] like Figure 7A As shown, the SRS resource set contains two SRS resources: the first SRS resource and the second SRS resource. The first SRS resource includes antenna port 1 and antenna port 2, and the second SRS resource includes antenna port 3 and antenna port 4. Assuming N=4 and M=1, this means that the first SRS resource is associated with four SRS transmission opportunities. Two of these four SRS transmission opportunities do not transmit SRS (i.e., the second and third SRS transmission opportunities). In other words, the first SRS resource does not use antenna ports 1 and 2 to transmit SRS during the second and third SRS transmission opportunities.

[0182] (2) SRS resources are sent using frequency hopping.

[0183] For example, the SRS resource set includes a first SRS resource, the first SRS resource includes multiple subbands, the first SRS resource is associated with X1 groups of SRS transmission opportunities, each group of SRS transmission opportunities in the X1 groups of SRS transmission opportunities includes the SRS transmission opportunities of all subbands in the first SRS resource, and X1 is an integer greater than 1; in the X1 groups of SRS transmission opportunities, Y1 groups of SRS transmission opportunities do not send SRS, Y1 is a positive integer, and Y1 is less than or equal to X1.

[0184] This can be understood as follows: each SRS resource is associated with the SRS transmission of multiple sub-bands, and only one sub-band's SRS is transmitted in one SRS transmission opportunity. In this case, a set of SRS transmission opportunities associated with the SRS resource refers to the SRS transmission opportunities corresponding to all sub-bands, that is, the full bandwidth SRS transmission.

[0185] like Figure 7B As shown, the SRS resource set contains two SRS resources: the first SRS resource and the second SRS resource. The first SRS resource includes antenna port 1 and antenna port 2, and the second SRS resource includes antenna port 3 and antenna port 4. Assuming X1 = 4 and Y1 = 1, this means that the first SRS resource is associated with four sets of SRS transmission opportunities. One of these four sets of SRS transmission opportunities does not transmit SRS (i.e., the first set of SRS transmission opportunities). In other words, the first SRS resource does not use antenna ports 1 and 2 to transmit full-bandwidth SRS during the first set of SRS transmission opportunities.

[0186] Case B: At least one SRS transmission occasion associated with different SRS resources does not transmit SRS.

[0187] (1) The SRS resource transmits SRS in a non-frequency hopping manner.

[0188] Exemplarily, the SRS resource set contains a first SRS resource, the first SRS resource is associated with N SRS transmission occasions, and M SRS transmission occasions among the N SRS transmission occasions do not transmit SRS, N and M are positive integers, and M is less than or equal to N. The SRS resource set also contains a second SRS resource, the second SRS resource is associated with P SRS transmission occasions, and Q SRS transmission occasions among the P SRS transmission occasions do not transmit SRS, P and Q are positive integers, and Q is less than or equal to P. Wherein, N and P can be the same or different, and M and Q can be the same or different.

[0189] As shown in Figure 7C , the SRS resource set contains 2 SRS resources, which are a first SRS resource and a second SRS resource; the first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4. Assuming N = 4 and M = 2, it means that the first SRS resource is associated with 4 SRS transmission occasions, and 2 SRS transmission occasions among the 4 SRS transmission occasions do not transmit SRS (i.e., the 2nd SRS transmission occasion and the 3rd SRS transmission occasion), that is, the first SRS resource does not transmit SRS using antenna port 1 and antenna port 2 at the 2nd SRS transmission occasion and the 3rd SRS transmission occasion.

[0190] Assuming P = 4 and Q = 3, it means that the second SRS resource is associated with 4 SRS transmission occasions, and 3 SRS transmission occasions among the 4 SRS transmission occasions do not transmit SRS (i.e., the 1st SRS transmission occasion, the 2nd SRS transmission occasion, and the 4th SRS transmission occasion), that is, the second SRS resource does not transmit SRS using antenna port 3 and antenna port 4 at the 1st SRS transmission occasion, the 2nd SRS transmission occasion, and the 4th SRS transmission occasion.

[0191] (2) The SRS resource transmits SRS in a frequency hopping manner.

[0192] Exemplarily, the SRS resource set contains a first SRS resource, the first SRS resource contains a plurality of subbands, the first SRS resource is associated with X1 groups of SRS transmission occasions, each group of SRS transmission occasions in the X1 groups of SRS transmission occasions includes SRS transmission occasions of all subbands in the first SRS resource, X1 is an integer greater than 1; Y1 groups of SRS transmission occasions among the X1 groups of SRS transmission occasions do not transmit SRS, Y1 is a positive integer, and Y1 is less than or equal to X1.

[0193] The SRS resource set further includes a second SRS resource, the second SRS resource including a plurality of subbands, the second SRS resource being associated with X2 groups of SRS transmission occasions, each group of SRS transmission occasions including SRS transmission occasions of all subbands in the second SRS resource, X2 being an integer greater than 1; Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions do not transmit SRS, Y2 being a positive integer, Y2 being less than or equal to X2.

[0194] As shown in FIG. 4, the SRS resource set includes two SRS resources, which are a first SRS resource and a second SRS resource; the first SRS resource includes antenna port 1 and antenna port 2, and the second SRS resource includes antenna port 3 and antenna port 4. The SRS resource set transmits SRS in a frequency hopping manner. Assuming that X1=4 and Y1=2, it indicates that the first SRS resource is associated with 4 groups of SRS transmission occasions, and 2 groups of SRS transmission occasions in the 4 groups of SRS transmission occasions do not transmit SRS (i.e., the first group of SRS transmission occasions and the fourth group of SRS transmission occasions), that is, the first SRS resource does not transmit SRS of full bandwidth using antenna port 1 and antenna port 2 in the first group of SRS transmission occasions and the fourth group of SRS transmission occasions. Figure 7D Assuming that X2=4 and Y2=1, it indicates that the second SRS resource is associated with 4 groups of SRS transmission occasions, and 1 group of SRS transmission occasions in the 4 groups of SRS transmission occasions does not transmit SRS (i.e., the fourth group of SRS transmission occasions), that is, the second SRS resource does not transmit SRS of full bandwidth using antenna port 3 and antenna port 4 in the fourth group of SRS transmission occasions.

[0195] For the above-mentioned case A and case B, in a possible implementation, a plurality of SRS transmission occasions associated with each SRS resource can be grouped, and each group of SRS transmission occasions uses the same muting manner. Based on this manner, the muting manner of SRS can be grouped and indicated, which is beneficial to improve communication efficiency.

[0196] Exemplarily, for the non-frequency hopping manner, the first SRS resource is associated with T groups of SRS transmission occasions, each group of SRS transmission occasions including the N times of SRS transmission occasions, T being a positive integer; and / or, the second SRS resource is associated with K groups of SRS transmission occasions, each group of SRS transmission occasions including the P times of SRS transmission occasions, K being a positive integer. It can be understood that the plurality of SRS transmission occasions associated with each SRS resource are grouped.

[0197]

[0198] ​For example, regarding the frequency hopping method, the first SRS resource is associated with Z1 sets of SRS transmission opportunities, each of the Z1 sets of SRS transmission opportunities includes the X1 groups of SRS transmission opportunities, where Z1 is a positive integer; and / or, the second SRS resource is associated with Z2 sets of SRS transmission opportunities, each of the Z2 sets of SRS transmission opportunities includes the X2 groups of SRS transmission opportunities, where Z2 is a positive integer. This can be understood as the SRS transmission opportunities of multiple sub-bands associated with each SRS resource forming a group of SRS transmission opportunities, achieving first-level grouping of SRS transmission opportunities; furthermore, multiple groups of SRS transmission opportunities can be grouped second-level to obtain multiple sets of SRS transmission opportunities, each set of SRS transmission opportunities employing the same silent mode.

[0199] Taking the non-frequency hopping method of SRS resource transmission as an example, assuming that at least one SRS transmission opportunity associated with different SRS resources does not transmit SRS, such as... Figure 7E As shown, the SRS resource set contains two SRS resources, namely the first SRS resource and the second SRS resource; the first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4. Assuming N=P=4, M=2, Q=3, T=K=2, this means that both the first and second SRS resources are associated with two sets of SRS transmission opportunities. In each set of SRS transmission opportunities, the first SRS resource is associated with four SRS transmission opportunities, and the second SRS resource is also associated with four SRS transmission opportunities. Among these, two of the four SRS transmission opportunities associated with the first SRS resource do not transmit SRS (i.e., the second and third SRS transmission opportunities), meaning that the first SRS resource does not use antenna port 1 and antenna port 2 to transmit SRS during the second and third SRS transmission opportunities. Similarly, three of the four SRS transmission opportunities associated with the second SRS resource do not transmit SRS (i.e., the first, second, and fourth SRS transmission opportunities), meaning that the second SRS resource does not use antenna port 3 and antenna port 4 to transmit SRS during the first, second, and fourth SRS transmission opportunities.

[0200] Method 3: At least one port of the SRS resource does not send SRS at least once during an SRS transmission.

[0201] In practical implementation, Method 3 can be understood as meaning that at least one port of the SRS resource does not send SRS during one or more SRS transmission events. The following explains different scenarios:

[0202] Case a: SRS transmission of the same port of SRS resource in different SRS transmission occasions.

[0203] Exemplarily, the SRS resource contains a first port, the SRS resource is associated with a first SRS transmission occasion, and the first port does not transmit SRS in the first SRS transmission occasion; the SRS resource also contains a second port, and the second port transmits SRS in the first SRS transmission occasion.

[0204] As shown in the following table, Figure 8A the SRS resource set contains two SRS resources, which are a first SRS resource and a second SRS resource; the first SRS resource contains an antenna port 1 and an antenna port 2, and the second SRS resource contains an antenna port 3 and an antenna port 4. The antenna port 1 does not transmit SRS in the first SRS resource associated with the first SRS transmission occasion, and the antenna port 2 transmits SRS in the first SRS resource associated with the first SRS transmission occasion.

[0205] Case b: SRS transmission of different ports of SRS resource in the same SRS transmission occasion.

[0206] Exemplarily, the SRS resource contains a first port, the SRS resource is associated with a first SRS transmission occasion, and the first port does not transmit SRS in the first SRS transmission occasion; the SRS resource is also associated with a second SRS transmission occasion, and the first port transmits SRS in the second SRS transmission occasion.

[0207] As shown in the following table, Figure 8B the SRS resource set contains two SRS resources, which are a first SRS resource and a second SRS resource; the first SRS resource contains an antenna port 1 and an antenna port 2, and the second SRS resource contains an antenna port 3 and an antenna port 4. The antenna port 1 does not transmit SRS in the first SRS resource associated with the first SRS transmission occasion, and the antenna port 1 transmits SRS in the first SRS resource associated with the second SRS transmission occasion.

[0208] It should be noted that for the third mode, the SRS resource can transmit SRS in a frequency hopping or non-frequency hopping manner. When the SRS resource transmits SRS in a frequency hopping manner, each SRS resource is associated with SRS transmission of multiple subbands, and only one subband transmits SRS in one SRS transmission occasion. At this time, the group of SRS transmission occasions associated with the SRS resource refers to the SRS transmission occasions corresponding to all subbands, that is, the SRS transmission of the full bandwidth.

[0209] As shown in the following table, Figure 8CAs shown, the SRS resource set contains 2 SRS resources, which are a first SRS resource and a second SRS resource; the first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4. The first SRS resource is associated with 4 groups of SRS transmission occasions, and antenna port 1 does not transmit SRS in the first group of SRS transmission occasions associated with the first SRS resource, where each group of SRS transmission occasions refers to SRS transmission of the full bandwidth (i.e., SRS transmission occasions corresponding to all subbands).

[0210] Based on the above, in a possible implementation, the first configuration information can be carried in RRC or DCI or a media access control control element (MAC CE). Specifically, the terminal device can be instructed based on one or more of the following manners. Based on the manner, the flexibility of the network device to configure the muting manner of the SRS is improved.

[0211] Manner 1: RRC configures multiple muting manners for each SRS resource set, and dynamically indicates one of the muting manners by MAC-CE or DCI.

[0212] Manner 2: RRC associates one muting manner for each SRS resource set, and dynamically indicates switching to another muting manner by MAC-CE or DCI, that is, the first configuration information can be used to indicate the muting manner to be switched for the SRS.

[0213] Manner 3: RRC pre-configures multiple muting manners, and each SRS resource is associated with a default muting manner, and dynamically indicates switching to another muting manner by MAC-CE or DCI, that is, the first configuration information can be used to indicate the muting manner to be switched for the SRS; where the default muting manner can be to transmit SRS in all SRS transmission occasions (i.e., all SRS transmissions are not muted).

[0214] In a possible implementation, the network device can autonomously decide which muting manner to use based on its own measurement information; or the terminal device can report SRS muting suggestions, and the network device can decide the final muting manner to be used, for example, the terminal device receives a downlink channel state information reference signal (CSI-RS) signal, obtains beam-level port-level measurement information, and then selects a muteable transmission beam or antenna port to report to the network device. Based on the manner, the accuracy and flexibility of the network device to configure the muting manner of the SRS are improved.

[0215] Exemplarily, before the terminal device receives the first configuration information from the network device, the method further comprises: the terminal device sends first information to the network device, the first information being used to indicate one or more of the following information:

[0216] a. an identity of the first set of CSIRS resources or an index value of the first CSIRS resource.

[0217] Wherein, the first set of CSIRS resources or the first CSIRS resource here refers to a set of CSIRS resources or a CSIRS resource whose received energy is less than a preset threshold value. The preset threshold value can be configured by the network device to the terminal device, can be agreed in advance by the protocol, or can be autonomously decided by the terminal device, which is not limited here.

[0218] b. a reference signal receiving power (RSRP) measurement value corresponding to the first CSIRS resource.

[0219] Wherein, the RSRP measurement value is one of the key parameters that can represent the strength of the wireless signal and the physical layer measurement requirements, which is the average value of the received signal power on all resource particles carrying the reference signal within a certain symbol.

[0220] c. an antenna port that the terminal device considers to be allowed to be muted.

[0221] Specifically, the terminal device receives the CSIRS signal, obtains the beam-level port-level measurement information, and then selects the muteable transmission beam or antenna port to report to the network device.

[0222] Optionally, the first information can be reported jointly with 3I information, or can be reported by using other signaling (for example, as a new measurement type, based on PUCCH or PUSCH alone), which is not limited here. Wherein, the 3I information includes channel quality indicator (CQI), rank indication (RI), and Precoding Matrix Indicator (PMI).

[0223] In addition, it should be noted that, optionally, one SRS resource set contains one usage indication information (“usage”), which is used to indicate the usage of the SRS resource set. Specifically, the usage can be antenna switching, or codebook, or non-codebook, or beam management.

[0224] Optionally, the network device can obtain the channel state information (CSI) of the downlink with reciprocity between the uplink and the downlink by receiving and measuring the SRS signals corresponding to the SRS resource set for antenna switching.

[0225] Optionally, the network device can obtain the CSI of the uplink by receiving and measuring the SRS signals corresponding to the SRS resource set for codebook, that is, when the precoding mode of the uplink of the terminal device is codebook, the network device obtains the transmitted precoding matrix indicator (TPMI) by receiving and measuring the SRS signals, and indicates the terminal device with the SRS resource index (SRI) and the TPMI to adopt the transmission precoding of the uplink.

[0226] Optionally, the network device can obtain the CSI of the uplink by receiving and measuring the SRS signals corresponding to the SRS resource set for non-codebook, that is, when the precoding mode of the uplink of the terminal device is non-codebook, the network device obtains the uplink transmission precoding weight by receiving and measuring the SRS, and indicates the terminal device with the SRS resource index (SRI) to adopt the transmission precoding of the uplink.

[0227] Optionally, the network device can select the transmit and receive beams for the uplink and downlink transmission of the terminal device by receiving and measuring the SRS corresponding to the SRS resource set for beam management.

[0228] Optionally, the type of the SRS resource set can be configured as periodic, semi-static or aperiodic. For the periodic or semi-static SRS resource, the periodic SRS resource is configured by the configuration message indicating the period and time slot offset of the SRS resource. The semi-static SRS resource can be dynamically activated and deactivated by the DCI signaling and / or MAC-CE signaling.

[0229] Optionally, the SRS port (also referred to as antenna port) has a mapping relationship with the SRS time-frequency domain resource, that is, the SRS information configuration indicates that a specific SRS port transmits SRS on a specific SRS time-frequency domain resource. The SRS time domain resource can span N adjacent symbols within a time slot, or occupy multiple symbols of different time slots.

[0230] Optionally, the SRS resource sets of different terminal devices can occupy the same time domain symbol or frequency domain bandwidth.

[0231] In a first implementation, different terminal devices occupy different subcarriers to transmit SRS; a terminal device can not transmit SRS on each subcarrier, but selects a specific subcarrier set based on a transmission comb value. For example, a terminal device can determine specific subcarriers occupied by using a configured transmission comb number and a comb offset. For example, a comb number of 2 means that each terminal device occupies 6 subcarriers on each RB, a comb offset of 0 means that a terminal device occupies the 1st, 3rd, 5th, 7th, 9th, and 11th subcarriers to transmit SRS, and a comb offset of 1 means that a terminal device occupies the 2nd, 4th, 6th, 8th, 10th, and 12th subcarriers to transmit SRS.

[0232] When the comb number is configured to be greater than 1, different terminal devices are allowed to be frequency division multiplexed within the same OFDM symbol, that is, different terminal devices occupy different subcarriers of the same RB within the same OFDM symbol to transmit SRS. For example, a transmission comb spacing of 2 allows two groups of UEs to be frequency multiplexed with a single subcarrier offset between the two groups. The larger the comb number, the more users that can be multiplexed within the same OFDM symbol, but the fewer resource elements each user uses to transmit SRS, and in this case, the quality of SRS measurement can be reduced.

[0233] In a second implementation, different terminal devices occupy the same resource elements and use different cyclically shifted base sequences to transmit SRS; each terminal device can be configured to transmit a base sequence (for example, a Zadoff-Chu sequence) with a specific cyclic shift as SRS. That is, a base sequence can be selected and different cyclic shifts can be used to shift each SRS, and the SRSs are orthogonalized, SRS transmitted by user 1 using a first cyclic shift and SRS transmitted by user 2 using a second cyclic shift are orthogonal, so even if user 1 and user 2 occupy the same resource elements, the interference between the SRSs of user 1 and user 2 received by the network device is small. The length of the base sequence can be equal to the number of resource elements allocated for SRS, that is, related to the number of resource blocks allocated for SRS and the number of combs used; the number of available cyclic shifts is related to the number of combs allocated for SRS. When the comb number = 2, the maximum number of available cyclic shifts = 8; when the comb number = 4, the maximum number of available cyclic shifts = 12; when the comb number = 8, the maximum number of available cyclic shifts = 6;

[0234] The different cyclic shifts described above can also be allocated to multiple antenna ports of the same user to transmit SRS; for example, a user's SRS resource set contains 2 SRS resources, that is, a first SRS resource and a second SRS resource, the first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4; four cyclic shifts can be configured for the four antenna ports of the user to transmit SRS.

[0235] Optionally, the terminal device can transmit the SRS by frequency hopping, i.e., multiple SRS transmissions of the same user are switched between different frequency bands. Specifically, when the single SRS transmission is less than the maximum bandwidth (e.g., 272 resource blocks) for SRS transmission, the SRS resource can be configured by frequency hopping, so that the SRS is transmitted using different parts (e.g., different frequency hops) of the SRS bandwidth.

[0236] S502, the terminal device transmits the SRS to the network device based on the first configuration information. Correspondingly, the network device receives the SRS from the terminal device based on the first configuration information.

[0237] In the embodiments of the present application, the terminal device receives the configuration information issued by the network device, which includes SRS resource set configuration information, SRS resource configuration information, SRS port configuration information, and first configuration information (i.e., the first configuration information is used to indicate the muting manner of the SRS).

[0238] The terminal device can transmit the SRS on the corresponding time-frequency domain resource based on the received configuration information using the indicated antenna port, and according to the muting manner indicated by the first configuration information, the SRS can not be transmitted on the corresponding SRS transmission occasion. Correspondingly, the network device receives the SRS from the terminal device, and obtains the downlink CSI information, or the uplink CSI information, or the transceiving beam information through the measurement of the SRS, and according to the muting manner indicated by the first configuration information, the SRS reception and measurement can not be performed on the corresponding SRS transmission occasion.

[0239] Specifically, the transmission power of the SRS is one or more of the following:

[0240] The first kind: the total transmission power of the SRS of different SRS resources in the SRS resource set is the same.

[0241] For example, an SRS resource set contains 2 SRS resources, i.e., a first SRS resource and a second SRS resource, the first SRS resource contains antenna port 1 and antenna port 2, and the second SRS resource contains antenna port 3 and antenna port 4. The network device indicates that the antenna port 3 of the second SRS resource does not transmit SRS at the first SRS transmission occasion; at this time, in order to ensure that the total transmission power of the SRS of different SRS resources is the same, the SRS transmission power of the antenna port 4 of the second SRS resource is twice the SRS transmission power of the antenna port 1 or the antenna port 2 used in the first SRS resource.

[0242] The second kind: the same transmission power is used between the ports of different SRS resources in the SRS resource set.

[0243] For example, an SRS resource set contains two SRS resources: a first SRS resource and a second SRS resource. The first SRS resource includes antenna ports 1 and 2, and the second SRS resource includes antenna ports 3 and 4. The network device instructs antenna port 3 of the second SRS resource not to transmit SRS during the first SRS transmission. In this case, to ensure that the transmission power of the SRS ports of different SRS resources is the same, the SRS transmission power of antenna port 4 of the second SRS resource is the same as the SRS transmission power of antenna port 1 or antenna port 2 on the first SRS resource.

[0244] It can be seen that, based on Figure 5 The described method allows network devices to indicate the SRS silencing mode to terminal devices through first configuration information based on actual user-level SRS measurement requirements. This means that SRS will not be sent during certain SRS transmission times, thus dynamically silencing unnecessary SRS transmissions. This helps reduce the power consumption of terminal devices and decrease neighboring cell interference of SRS without affecting the acquisition of user-level channel information, thereby improving the channel estimation accuracy of SRS.

[0245] The apparatus provided in the embodiments of this application will be described below.

[0246] This application divides the device into functional modules according to the above method embodiments. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this application is illustrative and only represents one logical functional division; other division methods may be used in actual implementation. The following will combine... Figures 9 to 11 The apparatus of the embodiments of this application is described in detail.

[0247] Figure 9 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application, such as... Figure 9 As shown, the communication device includes a processing module 901 and a transceiver module 902. The transceiver module 902 can implement corresponding communication functions, and the processing module 901 is used to implement corresponding processing functions. The transceiver module 902 can also be referred to as an interface, communication interface, or communication module, etc.

[0248] In some embodiments of this application, the communication device can be used to perform the actions performed by the terminal device in the above method embodiments. In this case, the communication device can be the terminal device itself or a chip or functional module configurable within the terminal device. The transceiver module 902 is used to perform transceiver-related operations of the terminal device in the above method embodiments, and the processing module 901 is used to perform processing-related operations of the terminal device in the above method embodiments.

[0249] Exemplarily, the transceiver 902 can be configured to receive, from a network device, first configuration information, the first configuration information being used to indicate a muting manner of SRS, the muting manner of SRS being one or more of: no SRS is transmitted in at least one SRS transmission occasion associated with a SRS resource set; or, no SRS is transmitted in at least one SRS transmission occasion associated with a SRS resource; or, no SRS is transmitted in at least one port of a SRS resource in at least one SRS transmission occasion.

[0250] The transceiver 902 can be configured to transmit, to the network device, the SRS based on the first configuration information.

[0251] As an example, the SRS resource set contains a first SRS resource, the first SRS resource is associated with N SRS transmission occasions, M SRS transmission occasions in the N SRS transmission occasions do not transmit SRS, N and M are positive integers, and M is less than or equal to N.

[0252] As another example, the SRS resource set further contains a second SRS resource, the second SRS resource is associated with P SRS transmission occasions, Q SRS transmission occasions in the P SRS transmission occasions do not transmit SRS, P and Q are positive integers, and Q is less than or equal to P.

[0253] As another example, the N SRS transmission occasions associated with the first SRS resource are the same as the P SRS transmission occasions associated with the second SRS resource; the M SRS transmission occasions in the N SRS transmission occasions associated with the first SRS resource that do not transmit SRS are the same as the Q SRS transmission occasions in the P SRS transmission occasions associated with the second SRS resource that do not transmit SRS.

[0254] As another example, the first SRS resource is associated with T groups of SRS transmission occasions, each group of SRS transmission occasions includes the N SRS transmission occasions, and T is a positive integer; and / or, the second SRS resource is associated with K groups of SRS transmission occasions, each group of SRS transmission occasions includes the P SRS transmission occasions, and K is a positive integer.

[0255] As another example, the SRS resource set contains a first SRS resource, the first SRS resource contains a plurality of subbands, the first SRS resource is associated with X1 groups of SRS transmission occasions, each group of SRS transmission occasions in the X1 groups of SRS transmission occasions includes SRS transmission occasions of all subbands in the first SRS resource, X1 is an integer greater than 1; Y1 groups of SRS transmission occasions in the X1 groups of SRS transmission occasions do not transmit SRS, Y1 is a positive integer, and Y1 is less than or equal to X1.

[0256] As another example, the SRS resource set further includes a second SRS resource, the second SRS resource including a plurality of subbands, the second SRS resource being associated with X2 groups of SRS transmission occasions, each group of SRS transmission occasions including SRS transmission occasions for all subbands in the second SRS resource, X2 being an integer greater than 1; Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions do not transmit SRS, Y2 being a positive integer, Y2 being less than or equal to X2.

[0257] As another example, the X1 groups of SRS transmission occasions associated with the first SRS resource are the same as the X2 groups of SRS transmission occasions associated with the second SRS resource; Y1 groups of SRS transmission occasions in the X1 groups of SRS transmission occasions that do not transmit SRS are the same as Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions that do not transmit SRS.

[0258] As another example, the first SRS resource is associated with Z1 groups of SRS transmission occasion sets, each SRS transmission occasion set in the Z1 groups of SRS transmission occasion sets including the X1 groups of SRS transmission occasions, Z1 being a positive integer; and / or, the second SRS resource is associated with Z2 groups of SRS transmission occasion sets, each SRS transmission occasion set in the Z2 groups of SRS transmission occasion sets including the X2 groups of SRS transmission occasions, Z2 being a positive integer.

[0259] As another example, the SRS resource includes a first port, the SRS resource being associated with a first SRS transmission occasion, the first port not transmitting SRS in the first SRS transmission occasion.

[0260] As another example, the SRS resource further includes a second port, the second port transmitting SRS in the first SRS transmission occasion.

[0261] As another example, the SRS resource is further associated with a second SRS transmission occasion, the first port transmitting SRS in the second SRS transmission occasion.

[0262] As another example, the first configuration information is used to indicate a muting manner to be switched for SRS.

[0263] As another example, the transceiver 902, before receiving the first configuration information from the network device, can be further configured to: send, to the network device, first information used to indicate one or more of the following information: an identifier of a first set of SRS resources, an index value of a first SRS resource, a RSRP measurement value corresponding to the first SRS resource, or a port allowed to be muted; wherein a reception energy corresponding to the first set of SRS resources or the first SRS resource is less than a preset threshold value.

[0264] As another example, the first configuration information is carried in RRC or DCI or MAC CE.

[0265] As another example, the total transmit power of different SRS resources in the SRS resource set is the same.

[0266] As another example, the same transmit power is used between ports of different SRS resources in the SRS resource set.

[0267] Exemplarily, the transceiver module 902 can include a radio frequency module, an antenna module, etc. Exemplarily, the transceiver module 902 can include a pin module, etc.

[0268] Multiplexing Figure 9 In some embodiments of the application, the communication apparatus can be configured to perform the actions performed by the network device in the above method embodiments. The communication apparatus can be the network device itself or a chip or functional module configured in the network device. The transceiver module 902 is configured to perform the transceiving related operations of the network device in the above method embodiments, and the processing module 901 is configured to perform the processing related operations of the network device in the above method embodiments.

[0269] Exemplarily, the transceiver module 902 can be configured to send the first configuration information to the terminal device, the first configuration information being used to indicate the muting manner of the SRS, the muting manner of the SRS being one or more of the following: the SRS resource set is not transmitted in at least one SRS transmission occasion associated with the SRS resource set; or, the SRS resource is not transmitted in at least one SRS transmission occasion associated with the SRS resource; or, at least one port of the SRS resource is not transmitted in at least one SRS transmission occasion.

[0270] The transceiver module 902 can be configured to receive the SRS from the terminal device based on the first configuration information.

[0271] As an example, the SRS resource set includes a first SRS resource, the first SRS resource is associated with N SRS transmission occasions, and M SRS transmission occasions in the N SRS transmission occasions do not transmit SRS, N and M being positive integers, and M being less than or equal to N.

[0272] As another example, the SRS resource set further includes a second SRS resource, the second SRS resource is associated with P SRS transmission occasions, and Q SRS transmission occasions in the P SRS transmission occasions do not transmit SRS, P and Q being positive integers, and Q being less than or equal to P.

[0273] As another example, the N SRS transmission occasions associated with the first SRS resource are the same as the P SRS transmission occasions associated with the second SRS resource; the M SRS transmission occasions in the N SRS transmission occasions associated with the first SRS resource that are not used to transmit SRS are the same as the Q SRS transmission occasions in the P SRS transmission occasions associated with the second SRS resource that are not used to transmit SRS.

[0274] As another example, the first SRS resource is associated with T groups of SRS transmission occasions, each group of SRS transmission occasions including the N SRS transmission occasions, T being a positive integer; and / or, the second SRS resource is associated with K groups of SRS transmission occasions, each group of SRS transmission occasions including the P SRS transmission occasions, K being a positive integer.

[0275] As another example, the SRS resource set further includes a second SRS resource, the second SRS resource including a plurality of subbands, the second SRS resource being associated with X2 groups of SRS transmission occasions, each group of SRS transmission occasions including SRS transmission occasions for all subbands in the second SRS resource, X2 being an integer greater than 1; Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions not transmitting SRS, Y2 being a positive integer, Y2 being less than or equal to X2.

[0276] As another example, the SRS resource set further includes a second SRS resource, the second SRS resource including a plurality of subbands, the second SRS resource being associated with X2 groups of SRS transmission occasions, each group of SRS transmission occasions including SRS transmission occasions for all subbands in the second SRS resource, X2 being an integer greater than 1; Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions not transmitting SRS, Y2 being a positive integer, Y2 being less than or equal to X2.

[0277] As another example, the X1 groups of SRS transmission occasions associated with the first SRS resource are the same as the X2 groups of SRS transmission occasions associated with the second SRS resource; the Y1 groups of SRS transmission occasions in the X1 groups of SRS transmission occasions associated with the first SRS resource that are not used to transmit SRS are the same as the Y2 groups of SRS transmission occasions in the X2 groups of SRS transmission occasions associated with the second SRS resource that are not used to transmit SRS.

[0278] As another example, the first SRS resource is associated with T groups of SRS transmission occasions, each group of SRS transmission occasions including the N SRS transmission occasions, T being a positive integer; and / or, the second SRS resource is associated with K groups of SRS transmission occasions, each group of SRS transmission occasions including the P SRS transmission occasions, K being a positive integer.

[0279] As another example, the SRS resource contains a first port, the SRS resource is associated with a first SRS transmission occasion, and the first port does not transmit SRS at the first SRS transmission occasion.

[0280] As another example, the SRS resource further contains a second port, and the second port transmits SRS at the first SRS transmission occasion.

[0281] As another example, the SRS resource is further associated with a second SRS transmission occasion, and the first port transmits SRS at the second SRS transmission occasion.

[0282] As another example, the first configuration information is used to indicate a muting manner to be switched for SRS.

[0283] As another example, the transceiver 902, before transmitting the first configuration information to the terminal device, can further be configured to: receive first information from the terminal device, the first information being used to indicate one or more of the following information: an identity of a first set of CSIRS resources, an index value of a first CSIRS resource, a RSRP measurement value corresponding to the first CSIRS resource, or a port allowed to be muted; and wherein a reception energy corresponding to the first set of CSIRS resources or the first CSIRS resource is less than a preset threshold value.

[0284] As another example, the first configuration information is carried in RRC or DCI or MAC CE.

[0285] As another example, SRS transmission total power of different SRS resources in the set of SRS resources is the same.

[0286] As another example, the same transmission power is used between ports of different SRS resources in the set of SRS resources.

[0287] Exemplarily, the transceiver 902 can include a radio frequency module, an antenna module, etc. Exemplarily, the transceiver 902 can include a pin module, etc.

[0288] Optionally, in each of the above embodiments, the communication device can further include a storage module, which can be used to store instructions and / or data, and the processing module 901 can read the instructions and / or data in the storage module to enable the device to implement the foregoing method embodiments. Exemplarily, the storage module can also store the first configuration information, the first information, etc. shown above.

[0289] In the above various embodiments, the specific description of the terms or steps such as SRS, antenna port, beam, SRS resource set, SRS resource, muting mode, etc. in each sub-block can refer to the description in the method embodiments above, and will not be repeated here.

[0290] The specific description of the transceiver module and the processing module shown in the above various embodiments is only an example. For the specific functions or steps of the transceiver module and the processing module, etc., reference can be made to the above method embodiments, and will not be described here.

[0291] The above introduces the device of the embodiments of the present application, and the possible product forms of the device are introduced below. Any form of product that has the functions of the device described above falls within the protection scope of the embodiments of the present application. The following introduction is only an example, and does not limit the product form of the device of the embodiments of the present application. Figure 9 The device described above falls within the protection scope of the embodiments of the present application. The following introduction is only an example, and does not limit the product form of the device of the embodiments of the present application.

[0292] In a possible implementation manner, Figure 9 In the communication device shown, the processing module 901 can be one or more processing circuits, and the transceiver module 902 can be a transceiver circuit, or the transceiver module 902 can also be a sending module and a receiving module, the sending module can be a sending circuit, and the receiving module can be a receiving circuit, and the sending module and the receiving module are integrated in one device, such as a transceiver circuit. In the embodiments of the present application, the processing circuit and the transceiver circuit can be coupled, etc., and the connection manner of the processing circuit and the transceiver circuit is not limited in the embodiments of the present application. In the process of executing the above method, the process of sending information in the above method can be the process of outputting the above information by the processing circuit. When outputting the above information, the processing circuit outputs the above information to the transceiver circuit for transmission (or output) by the transceiver circuit. After the above information is output by the processing circuit, it can also need to be processed further, and then reach the transceiver circuit. Similarly, the process of receiving information in the above method can be the process of receiving inputted above information by the processing circuit. When the processing circuit receives the inputted information, the transceiver circuit receives the above information and inputs it to the processing circuit. Further, after the transceiver circuit receives the above information, the above information can need to be processed further, and then input to the processing circuit.

[0293] Figure 10 FIG. 1 is a structural schematic diagram of a communication device provided by the embodiments of the present application. As shown in the figure, Figure 10 The communication device 100 includes one or more processing circuits 1020 and a transceiver circuit 1010.

[0294] In some embodiments of the present application, the communication device can be used to execute the steps or methods or functions executed by the terminal device, such as the processing circuit 1020 can be used to execute the steps or methods or functions executed by the terminal device, such as Figure 9The transceiver circuit 1010 can be used to perform the functions or steps implemented by the processing module 901 shown. Figure 9 The transceiver module 902 shown describes the functions or steps implemented by it. For detailed descriptions of the processing circuit 1020 and the transceiver circuit 1010, please refer to [link / reference needed]. Figure 9 Alternatively, the method embodiments shown above will not be described in detail here.

[0295] In other embodiments of this application, the apparatus is used to perform the steps, methods, or functions performed by the network device described above, such as the processing circuit 1020 being used to perform... Figure 9 The transceiver circuit 1010 can be used to perform the functions or steps implemented by the processing module 901 shown. Figure 9 The transceiver module 902 shown describes the functions or steps implemented by it. For detailed descriptions of the processing circuit 1020 and the transceiver circuit 1010, please refer to [link / reference needed]. Figure 9 Alternatively, the method embodiments shown above will not be described in detail here.

[0296] For example, the processing circuitry may be one or more processors, or all or part of the circuitry within one or more processors. The transceiver circuitry may be a transceiver, an input / output circuit, or an interface circuit, etc.

[0297] For example, in Figure 10 In various implementations of the illustrated apparatus, the transceiver circuitry may include a receiver for performing a receiving function (or operation) and a transmitter for performing a transmitting function (or operation). The transceiver circuitry is also used for communicating with other devices / appliances via a transmission medium.

[0298] Optionally, the communication device 100 may further include one or more memories 1030 for storing program instructions and / or data. The memories 1030 are coupled to the processing circuitry 1020. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processing circuitry 1020 may operate in conjunction with the memories 1030. The processing circuitry 1020 may execute the program instructions stored in the memories 1030. Optionally, at least one of the aforementioned memories may be included in the processing circuitry.

[0299] This application embodiment does not limit the specific connection medium between the transceiver circuit 1010, the processing circuit 1020, and the memory 1030. This application embodiment... Figure 10 The memory 1030, processing circuit 1020, and transceiver circuit 1010 are connected via a bus 1040. Figure 10The connections between other components are shown by broken lines that indicate only possible connections and do not limit the scope of the application. The bus can be a single bus or a plurality of buses. For ease of representation, Figure 10 The bus is shown as a single bus, but it can be a plurality of buses.

[0300] In the embodiments of the present application, the processing circuit can be a general-purpose processing circuit, a digital signal processing circuit, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., which can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present application. The general-purpose processing circuit can be a microprocessor or any conventional processing circuit, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as hardware processing circuit execution, or executed by a combination of hardware and software modules in the processing circuit, etc.

[0301] In the embodiments of the present application, the memory can include, but is not limited to, a non-volatile memory such as a hard disk drive (HDD) or a solid-state drive (SSD), a random access memory (RAM), an erasable programmable ROM (EPROM), a read-only memory (ROM) or a compact disc read-only memory (CD-ROM), etc. The memory is any storage medium that can be used to carry or store program codes in the form of instructions or data structures and can be read and / or written by a computer (such as the device shown in the present application, etc.). The memory in the embodiments of the present application can also be a circuit or any other device capable of realizing a storage function, used for storing program instructions and / or data.

[0302] For example, the processing circuit 1020 is mainly used for processing communication protocols and communication data, and controlling the whole device, executing software programs, and processing data of the software programs. The memory 1030 is mainly used for storing software programs and data. The transceiver circuit 1010 can include a control circuit and an antenna, and the control circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of the radio frequency signals. The antenna is mainly used for transceiving radio frequency signals in the form of electromagnetic waves. Input / output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving user input data and outputting data to users.

[0303] When the apparatus is powered on, the processing circuit 1020 can read a software program in the memory 1030, interpret and execute instructions of the software program, and process data of the software program. When data needs to be sent wirelessly, the processing circuit 1020 outputs a baseband signal to the radio frequency circuit after baseband processing of the data to be sent, and the radio frequency circuit converts the baseband signal into a radio frequency signal and sends the radio frequency signal in the form of an electromagnetic wave to the outside through the antenna. When data is sent to the apparatus, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processing circuit 1020, and the processing circuit 1020 converts the baseband signal into data and processes the data.

[0304] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processing circuit that performs baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged remotely from the apparatus.

[0305] The apparatus shown in the embodiments of the present application can also have more components, etc., which are not limited in the embodiments of the present application. The methods performed by the processing circuit and the transceiver circuit shown above are only examples, and the specific steps performed by the processing circuit and the transceiver circuit can refer to the methods introduced above. Figure 10

[0306] In another possible implementation, Figure 9 In the apparatus shown, the processing module 901 can be one or more logic circuits, and the transceiving module 902 can be an input output interface, also called a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiving module 902 can also be a sending module and a receiving module, the sending module can be an output interface, and the receiving module can be an input interface, and the sending module and the receiving module are integrated in one module, for example, an input output interface.

[0307] Figure 11 is a structural schematic diagram of a communication apparatus provided by the embodiments of the present application. As Figure 11 shown, Figure 11 The communication apparatus shown includes a logic circuit 1101 and an interface circuit 1102. That is, the processing module 901 can be implemented by the logic circuit 1101, and the transceiving module 902 can be implemented by the interface circuit 1102. The logic circuit 1101 can be a chip, a processing circuit, an integrated circuit, or a system on chip (SoC) chip, etc., and the interface circuit 1102 can be a communication interface, an input output interface, a pin, etc. For example, Figure 11 is an example in which the above communication apparatus is a chip, and the chip includes the logic circuit 1101 and the interface circuit 1102.

[0308] ​In the embodiments of the present application, the logic circuit and the interface can also be coupled to each other. The present application does not limit the specific connection mode of the logic circuit and the interface. For example, the logic circuit 1101 can be used to execute the functions or steps implemented by the processing module 901 as shown in Figure 9 The interface circuit 1102 can be used to execute the functions or steps implemented by the transceiving module 902 as shown in Figure 9 The specific description of the logic circuit 1101 and the interface circuit 1102 can be referred to the method embodiments shown in Figure 9 or the above, which will not be described here in detail.

[0309] The device shown in the embodiments of the present application can realize the method provided by the embodiments of the present application in the form of hardware, or realize the method provided by the embodiments of the present application in the form of software, etc. The present application does not limit this.

[0310] The embodiments of the present application also provide a communication system, which includes a terminal device and a network device, and the terminal device and the network device can be used to execute the method in any of the preceding embodiments.

[0311] In addition, the present application also provides a computer program for realizing the operations and / or processes executed by various devices in the method provided by the present application.

[0312] The present application also provides a computer readable storage medium, which stores computer code, when the computer code is run on a computer, so that the computer executes the operations and / or processes executed by various devices in the method provided by the present application.

[0313] The present application also provides a computer program product, which includes computer code or computer program, when the computer code or computer program is run on a computer, so that the operations and / or processes executed by various devices in the method provided by the present application are executed.

[0314] In the several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only schematic. The division of the modules is only a logical function division. There can be another division manner in actual implementation, for example, a plurality of modules or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the modules shown or discussed can be indirect coupling or communication connection through some interfaces, devices or modules, and can also be electrical, mechanical or other forms of connection.

[0315] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, i.e., may be located in one place, or may be distributed to multiple network modules. Part or all of the modules can be selected according to actual needs to achieve the technical effects of the scheme provided by the embodiments of the present application.

[0316] In addition, the functional modules in the various embodiments of the present application can be integrated into one processing module, or each module can exist physically alone, or two or more modules can be integrated into one module. The integrated module can be realized in the form of hardware or in the form of a software functional module.

[0317] The integrated module, if realized in the form of a software functional module and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product, which is stored in a readable storage medium, including a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned readable storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0318] 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 can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An information transmission method, characterized in that, The method includes: Receive first configuration information from the network device, the first configuration information being used to indicate the silencing mode of the sounding reference signal (SRS), the silencing mode of the SRS being one or more of the following: SRS is not sent at least once during an SRS transmission associated with an SRS resource set; or, At least one SRS transmission opportunity associated with the SRS resource is not to send an SRS; or, At least one port of the SRS resource does not send SRS during at least one SRS transmission opportunity; The SRS is sent to the network device based on the first configuration information.

2. The method according to claim 1, characterized in that, The SRS resource set includes a first SRS resource, which is associated with N SRS transmission opportunities. Among the N SRS transmission opportunities, M SRS transmission opportunities do not send SRS. N and M are positive integers, and M is less than or equal to N.

3. The method according to claim 2, characterized in that, The SRS resource set also includes a second SRS resource, which is associated with P SRS transmission opportunities. Among the P SRS transmission opportunities, Q SRS transmission opportunities do not send SRS. P and Q are positive integers, and Q is less than or equal to P.

4. The method according to claim 3, characterized in that, The timing of the N SRS transmissions associated with the first SRS resource is the same as the timing of the P SRS transmissions associated with the second SRS resource. The M SRS transmission opportunities that are not used to send SRS in the N SRS transmission opportunities associated with the first SRS resource are the same as the Q SRS transmission opportunities that are not used to send SRS in the P SRS transmission opportunities associated with the second SRS resource.

5. The method according to any one of claims 2-4, characterized in that, The first SRS resource is associated with T groups of SRS transmission opportunities, each group of SRS transmission opportunities includes the N SRS transmission opportunities, where T is a positive integer; and / or, The second SRS resource is associated with K groups of SRS transmission opportunities, each group of SRS transmission opportunities includes the P SRS transmission opportunities, where K is a positive integer.

6. The method according to claim 1, characterized in that, The SRS resource set includes a first SRS resource, the first SRS resource includes multiple sub-bands, the first SRS resource is associated with X1 groups of SRS transmission opportunities, each group of SRS transmission opportunities in the X1 groups of SRS transmission opportunities includes the SRS transmission opportunities of all sub-bands in the first SRS resource, and X1 is an integer greater than 1. In the SRS transmission timing of group X1, no SRS is sent in the SRS transmission timing of group Y1. Y1 is a positive integer, and Y1 is less than or equal to X1.

7. The method according to claim 6, characterized in that, The SRS resource set includes a second SRS resource, the second SRS resource includes multiple sub-bands, the second SRS resource is associated with X2 groups of SRS transmission opportunities, each group of SRS transmission opportunities in the X2 groups of SRS transmission opportunities includes the SRS transmission opportunities of all sub-bands in the second SRS resource, and X2 is an integer greater than 1. In the X2 SRS transmission timing, no SRS is sent in the Y2 SRS transmission timing. Y2 is a positive integer, and Y2 is less than or equal to X2.

8. The method according to claim 7, characterized in that, The transmission timing of the X1 group of SRS associated with the first SRS resource is the same as the transmission timing of the X2 group of SRS associated with the second SRS resource. The SRS transmission timing of group Y1, which is not used to send SRS in the SRS transmission timing of group X1 associated with the first SRS resource, is the same as the SRS transmission timing of group Y2, which is not used to send SRS in the SRS transmission timing of group X2 associated with the second SRS resource.

9. The method according to any one of claims 6-8, characterized in that, The first SRS resource is associated with Z1 groups of SRS transmission opportunities, each group of SRS transmission opportunities in the Z1 groups includes the X1 groups of SRS transmission opportunities, where Z1 is a positive integer; and / or, The second SRS resource is associated with Z2 groups of SRS transmission opportunities. Each group of SRS transmission opportunities in the Z2 groups includes the X2 groups of SRS transmission opportunities, where Z2 is a positive integer.

10. The method according to any one of claims 1-9, characterized in that, The SRS resource includes a first port, and the SRS resource is associated with a first SRS transmission timing, during which the first port does not send SRS.

11. The method according to claim 10, characterized in that, The SRS resource also includes a second port, which sends SRS during the first SRS transmission.

12. The method according to claim 10, characterized in that, The SRS resource is also associated with a second SRS transmission timing, during which the first port sends SRS.

13. The method according to any one of claims 1-12, characterized in that, The first configuration information is carried in the Radio Resource Control (RRC), Downlink Control Information (DCI), or Media Access Control (MAC) CE.

14. An information transmission method, characterized in that, The method includes: Send first configuration information to the terminal device, the first configuration information being used to indicate the silencing mode of the sounding reference signal (SRS), wherein the silencing mode of the SRS is one or more of the following: SRS is not sent at least once during an SRS transmission associated with an SRS resource set; or, At least one SRS transmission opportunity associated with the SRS resource is not to send an SRS; or, At least one port of the SRS resource does not send SRS during at least one SRS transmission opportunity; Receive SRS from the terminal device based on the first configuration information.

15. The method according to claim 14, characterized in that, The SRS resource set includes a first SRS resource, which is associated with N SRS transmission opportunities. Among the N SRS transmission opportunities, M SRS transmission opportunities do not send SRS. N and M are positive integers, and M is less than or equal to N.

16. The method according to claim 15, characterized in that, The SRS resource set also includes a second SRS resource, which is associated with P SRS transmission opportunities. Among the P SRS transmission opportunities, Q SRS transmission opportunities do not send SRS. P and Q are positive integers, and Q is less than or equal to P.

17. The method according to claim 16, characterized in that, The timing of the N SRS transmissions associated with the first SRS resource is the same as the timing of the P SRS transmissions associated with the second SRS resource. The M SRS transmission opportunities that are not used to send SRS in the N SRS transmission opportunities associated with the first SRS resource are the same as the Q SRS transmission opportunities that are not used to send SRS in the P SRS transmission opportunities associated with the second SRS resource.

18. The method according to any one of claims 15-17, characterized in that, The first SRS resource is associated with T groups of SRS transmission opportunities, each group of SRS transmission opportunities includes the N SRS transmission opportunities, where T is a positive integer; and / or, The second SRS resource is associated with K groups of SRS transmission opportunities, each group of SRS transmission opportunities includes the P SRS transmission opportunities, where K is a positive integer.

19. The method according to claim 14, characterized in that, The SRS resource set includes a first SRS resource, the first SRS resource includes multiple sub-bands, the first SRS resource is associated with X1 groups of SRS transmission opportunities, each group of SRS transmission opportunities in the X1 groups of SRS transmission opportunities includes the SRS transmission opportunities of all sub-bands in the first SRS resource, and X1 is an integer greater than 1. In the SRS transmission timing of group X1, no SRS is sent in the SRS transmission timing of group Y1. Y1 is a positive integer, and Y1 is less than or equal to X1.

20. The method according to claim 19, characterized in that, The SRS resource set includes a second SRS resource, the second SRS resource includes multiple sub-bands, the second SRS resource is associated with X2 groups of SRS transmission opportunities, each group of SRS transmission opportunities in the X2 groups of SRS transmission opportunities includes the SRS transmission opportunities of all sub-bands in the second SRS resource, and X2 is an integer greater than 1. In the X2 SRS transmission timing, no SRS is sent in the Y2 SRS transmission timing. Y2 is a positive integer, and Y2 is less than or equal to X2.

21. The method according to claim 20, characterized in that, The transmission timing of the X1 group of SRS associated with the first SRS resource is the same as the transmission timing of the X2 group of SRS associated with the second SRS resource. The SRS transmission timing of group Y1, which is not used to send SRS in the SRS transmission timing of group X1 associated with the first SRS resource, is the same as the SRS transmission timing of group Y2, which is not used to send SRS in the SRS transmission timing of group X2 associated with the second SRS resource.

22. The method according to any one of claims 19-21, characterized in that, The first SRS resource is associated with Z1 sets of SRS transmission opportunities, each of the Z1 sets of SRS transmission opportunities includes the X1 groups of SRS transmission opportunities, where Z1 is a positive integer; and / or, The second SRS resource is associated with Z2 sets of SRS transmission opportunities. Each of the Z2 sets of SRS transmission opportunities includes the X2 sets of SRS transmission opportunities, where Z2 is a positive integer.

23. The method according to any one of claims 14-22, characterized in that, The SRS resource includes a first port, and the SRS resource is associated with a first SRS transmission timing, during which the first port does not send SRS.

24. The method according to claim 23, characterized in that, The SRS resource also includes a second port, which sends SRS during the first SRS transmission.

25. The method according to claim 23, characterized in that, The SRS resource is also associated with a second SRS transmission timing, during which the first port sends SRS.

26. The method according to any one of claims 14-25, characterized in that, The first configuration information is carried in the Radio Resource Control (RRC), Downlink Control Information (DCI), or Media Access Control (MAC) CE.

27. A communication device, characterized in that, It includes a module for performing the method as described in any one of claims 1-13, or includes a module for performing the method as described in any one of claims 14-26.

28. A communication device, characterized in that, It includes a processing circuit and a transceiver circuit, the transceiver circuit being used to input and / or output information, and the processing circuit being used to perform the method as described in any one of claims 1-13, or the processing circuit being used to perform the method as described in any one of claims 14-26.

29. A chip, characterized in that, It includes a processing circuit and an interface circuit, the processing circuit and the interface circuit being coupled; the interface circuit is used for inputting and / or outputting information, and the processing circuit is used for executing code instructions to cause the method of any one of claims 1-13 to be executed, or to cause the method of any one of claims 14-26 to be executed.

30. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, which, when executed, performs the method as described in any one of claims 1-13, or the method as described in any one of claims 14-26.

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