Communication method, communication apparatus, and communication system

Abstract

A communication method, a communication apparatus, and a communication system. The method comprises: acquiring first information and second information, wherein the first information is used for indicating information of a first RSRP of a first port set for a CSI-RS, and information of a second RSRP of same, and the second information is used for indicating information of a third RSRP of a second port set for the CSI-RS, and information of a fourth RSRP of same; and on the basis of the first information and the second information, configuring, for a first terminal of a first cell and a second terminal of a second cell, the same resources for transmitting uplink reference signals. Since the same resources for transmitting uplink reference signals are configured for the first terminal and the second terminal, the resource utilization rate is increased, and the overheads of resources for transmitting uplink reference signals is reduced.

Description

A communication method, communication device and communication system

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411589030.0, filed on November 7, 2024, entitled "A Communication Method, Communication Device and Communication System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communication technology, and in particular to a communication method, communication device and communication system. Background Technology

[0004] A sounding reference signal (SRS) is an uplink reference signal sent by a terminal to an access network device. The access network device can determine the uplink channel information from the terminal to the access network device based on the received SRS. The SRS is a sequence signal designed based on the Zadoff-Chu sequence and possesses its characteristics. Furthermore, if channel reciprocity exists between the uplink and downlink channels, the access network device can also determine the downlink channel information from the access network device to the terminal based on uplink channel measurements using SRS. After determining the downlink channel information from the access network device to the terminal, the access network device can perform resource scheduling or precoding processing on the terminal's downlink data transmission based on this information.

[0005] Since there are a large number of terminals transmitting SRS, in order to minimize mutual interference between different terminals transmitting SRS and thus improve the performance of channel estimation, mutually orthogonal SRS resources can be allocated to different terminals. Here, two SRS resources are mutually orthogonal if at least one of their time domain, frequency domain, or code domain is different; that is, mutually orthogonal SRS resources satisfy at least one of time division, frequency division, or code division.

[0006] However, due to the large number of terminals, consistently allocating orthogonal SRS resources to different terminals would result in significant resource overhead. How to reduce SRS resource overhead remains a problem to be solved. Summary of the Invention

[0007] This application provides a communication method, communication device, and communication system to reduce the overhead of resources used for transmitting uplink reference signals.

[0008] In a first aspect, embodiments of this application provide a communication method that can be applied to a network side, such as an access network device, a module (e.g., a circuit, chip, or chip system) within the access network device, or a logical node, logical module, or software capable of implementing all or part of the functions of the access network device. The method includes: acquiring first information and second information; wherein the first information is used to indicate information about the first reference signal receiving power (RSRP) and the second RSRP of a first port set of channel status information reference signal (CSI-RS), the first RSRP being RSRP information determined by a terminal of a first cell based on CSI-RS transmitted by the first cell, and the second RSRP being RSRP information determined by a terminal of a second cell based on CSI-RS transmitted by the first cell; the first information is determined based on CSI-RS on a first resource, the first resource being the resource for transmitting CSI-RS by the first cell and transmitting zero-power CSI-RS by the second cell; the second information is used to indicate information about the third RSRP and the fourth RSRP of the second port set of CSI-RS. The information includes: the third RSRP information is the RSRP information of the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell; the fourth RSRP information is the RSRP information of the second port set determined by the terminal of the second cell based on the CSI-RS sent by the second cell; the second information is determined based on the CSI-RS on the second resource, which is the resource for transmitting CSI-RS by the second cell and the resource for transmitting zero-power CSI-RS by the first cell; based on the first information and the second information, the same resources for transmitting uplink reference signals are configured for the first terminal of the first cell and the second terminal of the second cell.

[0009] Based on the above scheme, since the first terminal and the second terminal are configured with the same resources for transmitting uplink reference signals, the resource utilization rate is improved and the overhead of resources for transmitting uplink reference signals is reduced.

[0010] In one possible implementation, the first information includes a first bitmap corresponding to the terminal in the first cell and a second bitmap corresponding to the terminal in the second cell. The first bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal in the first cell according to the CSI-RS sent by the first cell. The second bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal in the second cell according to the CSI-RS sent by the first cell. The number of bits in both the first and second bitmaps is equal to the number of ports in the first port set, and the bits in both the first and second bitmaps are related to the number of ports in the first port set. The first bit map corresponds one-to-one with the second bit map. The second information includes a third bit map corresponding to the terminal in the first cell and a fourth bit map corresponding to the terminal in the second cell. The third bit map is used to indicate the RSRP of each port in the second port set determined by the terminal in the first cell according to the CSI-RS sent by the second cell. The fourth bit map is used to indicate the RSRP of each port in the second port set determined by the terminal in the second cell according to the CSI-RS sent by the second cell. The number of bits in the third bit map and the number of bits in the fourth bit map are both equal to the number of ports in the second port set, and the bits in the third bit map and the bits in the fourth bit map correspond one-to-one with the ports in the second port set.

[0011] Based on the above scheme, the strength of the measured RSRP of the port is fed back through a bit map, instead of directly feeding back the measured RSRP value. This can reduce air interface overhead because if the RSRP value is fed back directly, the overhead would be very large.

[0012] In one possible implementation, when the value of the first bit in the first bit diagram is a first value, the first bit is used to indicate that the RSRP of the first port in the first port set is greater than or equal to a first threshold; when the value of the first bit in the first bit diagram is a second value, the first bit is used to indicate that the RSRP of the first port in the first port set is less than the first threshold.

[0013] In one possible implementation, the M bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the M bits are assigned a second value. The RSRP of the M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of the ports in the first port set besides the M ports. Here, M is a positive integer, and the size of M satisfies the following conditions: the ratio of the sum of the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is greater than or equal to a second threshold, and the ratio of the sum of the largest M-1 RSRPs among the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is less than the second threshold.

[0014] In one possible implementation, the N bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the N bits are assigned a second value. The RSRP of the N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of the ports in the first port set besides the N ports. Here, N is a positive integer, and the size of N is pre-configured.

[0015] In one possible implementation, indication information from a terminal in the first cell is received, the indication information being used to indicate the N ports; and the first bitmap is determined based on the indication information.

[0016] Based on the above scheme, the strength of the measured RSRP of the port is fed back by indicating information, instead of directly feeding back the measured RSRP value. This can reduce air interface overhead because if the RSRP value is fed back directly, the overhead would be very large.

[0017] In one possible implementation, the first information includes the sum of RSRPs of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell, and the sum of RSRPs of each port in the first port set determined by the terminal of the second cell based on the CSI-RS sent by the first cell; the second information includes the sum of RSRPs of each port in the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell, and the sum of RSRPs of each port in the second port set determined by the terminal of the second cell based on the CSI-RS sent by the second cell.

[0018] Based on the above scheme, by feeding back the sum of RSRP of each port in the first port set and the sum of RSRP of each port in the second port set, it helps to allocate resources for transmitting uplink reference signals more accurately for terminals in the first cell and terminals in the second cell.

[0019] Secondly, this application provides a communication method that can be applied to the terminal side, such as a terminal or a communication module in the terminal, or a circuit or chip in the terminal that is responsible for communication functions (such as a modem chip, also known as a baseband chip, or a system-on-chip (SoC) chip containing a modem core or a system-in-package (SIP) chip). The method includes: acquiring third information and fourth information; wherein the third information is used to indicate information about a first RSRP of a first port set of CSI-RS, the first RSRP being information about the RSRP of the first port set determined by a terminal of a first cell based on CSI-RS transmitted by the first cell, the third information being determined based on CSI-RS on a first resource, the first resource being resources for CSI-RS transmitted by the first cell and zero-power CSI-RS transmitted by the second cell; the fourth information is used to indicate information about a third RSRP of a second port set of CSI-RS, the third RSRP being information about the RSRP of the second port set determined by a terminal of the first cell based on CSI-RS transmitted by the second cell, the fourth information being determined based on CSI-RS on a second resource, the second resource being resources for CSI-RS transmitted by the second cell and zero-power CSI-RS transmitted by the first cell; and transmitting the third information and the fourth information.

[0020] In one possible implementation, the third information is used to indicate a first bitmap corresponding to the terminal of the first cell, the first bitmap indicating the RSRP of each port in the first port set determined by the terminal of the first cell according to the CSI-RS sent by the first cell; wherein, the number of bits in the first bitmap is equal to the number of ports in the first port set, and the bits of the first bitmap correspond one-to-one with the ports in the first port set; the fourth information is used to indicate a third bitmap corresponding to the terminal of the first cell, the third bitmap indicating the RSRP of each port in the second port set determined by the terminal of the first cell according to the CSI-RS sent by the second cell; wherein, the number of bits in the third bitmap is equal to the number of ports in the second port set, and the bits of the third bitmap correspond one-to-one with the ports in the second port set.

[0021] In one possible implementation, when the value of the first bit in the first bit diagram is a first value, the first bit is used to indicate that the RSRP of the first port in the first port set is greater than or equal to a first threshold; when the value of the first bit in the first bit diagram is a second value, the first bit is used to indicate that the RSRP of the first port in the first port set is less than the first threshold.

[0022] In one possible implementation, the M bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the M bits are assigned a second value. The RSRP of the M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of the ports in the first port set besides the M ports. Here, M is a positive integer, and the size of M satisfies the following conditions: the ratio of the sum of the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is greater than or equal to a second threshold, and the ratio of the sum of the largest M-1 RSRPs among the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is less than the second threshold.

[0023] In one possible implementation, the N bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the N bits are assigned a second value. The RSRP of the N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of the ports in the first port set besides the N ports. Here, N is a positive integer, and the size of N is pre-configured.

[0024] In one possible implementation, the third information includes indication information used to indicate the N ports and to determine the first bitmap.

[0025] In one possible implementation, the third information includes the sum of RSRPs of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell; the fourth information includes the sum of RSRPs of each port in the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell.

[0026] Thirdly, this application provides a communication device that has the functions of the first aspect above. For example, the communication device includes modules, units or means corresponding to the operations involved in the first aspect above. The modules, units or means can be implemented by software, or by hardware, or by a combination of software and hardware.

[0027] Fourthly, this application provides a communication device that has the functions of the second aspect above. For example, the communication device includes modules, units or means corresponding to the operations involved in the second aspect above. The modules, units or means can be implemented by software, hardware or a combination of software and hardware.

[0028] Fifthly, this application provides a communication device including an interface circuit and one or more processors. The one or more processors are coupled to a memory. The memory stores part or all of the necessary computer program or instructions for implementing the functions described in the first aspect. The one or more processors can execute the computer program or instructions, causing the communication device to implement the methods in any possible design or implementation of the first aspect. The interface circuit is used to implement the communication functions within the communication device and / or the communication functions between the communication device and other devices or components.

[0029] The aforementioned communication device may be an access network device, a module (e.g., a circuit, chip, or chip system) within the access network device, or a logical node, logical module, or software capable of implementing all or part of the functions of the access network device.

[0030] Sixthly, this application provides a communication device including an interface circuit and one or more processors. The one or more processors are coupled to a memory. The memory stores part or all of the necessary computer program or instructions for implementing the functions described in the second aspect above. The one or more processors are executable to carry out the computer program or instructions, causing the communication device to implement the methods in any possible design or implementation of the second aspect above. The interface circuit is used to implement the communication functions within the communication device and / or the communication functions between the communication device and other devices or components.

[0031] In one possible design, the processor is used to communicate with other devices or components through the interface circuit.

[0032] In one possible design, the communication device may also include the memory.

[0033] The aforementioned communication device may be a terminal, a communication module in a terminal, or a chip in a terminal that is responsible for communication functions, such as a modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module.

[0034] In a seventh aspect, this application provides a chip (or chip system) including a processor for implementing any of the possible implementation methods of the first to second aspects described above.

[0035] Eighthly, this application provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement the method in any of the possible designs of the first to second aspects described above.

[0036] Ninthly, this application provides a computer program product comprising a computer program or instructions that, when executed, implement the method in any of the possible designs of the first to second aspects described above.

[0037] In a tenth aspect, this application provides a communication system, including an access network device for performing any possible implementation of the first aspect described above, and a terminal for performing any possible implementation of the second aspect described above. Attached Figure Description

[0038] Figure 1 is a schematic diagram of a possible, non-limiting system;

[0039] Figure 2 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0040] Figure 3 is a schematic diagram of cell relationships provided in an embodiment of this application;

[0041] Figure 4 is a possible exemplary block diagram of the communication device involved in the embodiments of this application;

[0042] Figure 5 is a schematic diagram of the structure of a terminal provided in an embodiment of this application. Detailed Implementation

[0043] Figure 1 is a possible, non-limiting system schematic diagram. As shown in Figure 1, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, the communication system also includes an Internet 300. RAN 100 includes at least one RAN node (110a and 110b in Figure 1, collectively referred to as 110) and at least one terminal (120a-120j in Figure 1, collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1). Terminal 120 is wirelessly connected to RAN node 110. RAN node 110 is wirelessly or wired connected to core network 200. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be different physical devices, or they can be the same physical device integrating core network logical functions and radio access network logical functions.

[0044] RAN100 can be a cellular system related to the 3rd Generation Partnership Project (3GPP), such as 4th generation (4G), 5th generation (5G) mobile communication systems, or future-oriented evolution systems (such as 6th generation (6G) mobile communication systems). RAN100 can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. RAN100 can also be a communication system that integrates two or more of the above systems.

[0045] RAN node 110, sometimes also referred to as access network equipment, RAN entity, or access node, constitutes part of the communication system and is used to help terminals achieve wireless access. Multiple RAN nodes 110 in communication system 10 can be of the same type or different types. In some scenarios, the roles of RAN node 110 and terminal 120 are relative. For example, network element 120i in Figure 1 can be a helicopter or drone, which can be configured as a mobile base station. For terminals 120j accessing RAN 100 through network element 120i, network element 120i is a base station; but for base station 110a, network element 120i is a terminal. RAN node 110 and terminal 120 are sometimes both referred to as communication devices. For example, network elements 110a and 110b in Figure 1 can be understood as communication devices with base station functions, and network elements 120a-120j can be understood as communication devices with terminal functions.

[0046] In one possible scenario, the RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next-generation NodeB (gNB), a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The RAN node can be a macro base station (as shown in Figure 1, 110a), a micro base station or indoor station (as shown in Figure 1, 110b), a relay node or donor node, or a radio controller in a CRAN scenario. Optionally, the RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU). All or part of the functions of the RAN node in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (e.g., a cloud platform). The RAN node can also be equipped with communication modules, circuits, or chips that perform corresponding communication functions. The RAN node can also be configured with program instructions for performing corresponding communication functions, as well as corresponding program instructions. The RAN node in this application can also be a logical node, logical module, or software capable of implementing all or part of the RAN node's functions.

[0047] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with each RAN node performing a portion of the base station's functions. For example, RAN nodes can be central units (CUs), distributed units (DUs), CU-control plane (CPs), CU-user plane (UPs), or radio units (RUs), etc. CUs and DUs can be separate entities or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio frequency equipment or radio frequency units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs).

[0048] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0049] A terminal can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. A terminal can also be called a terminal device, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, transportation vehicles with wireless communication capabilities, communication modules, etc. The embodiments of this application do not limit the device form of the terminal. A terminal typically contains a communication module, circuit, or chip that performs the corresponding communication function. The terminal can also be configured with program instructions for performing the corresponding communication function.

[0050] SRS (Sequenced Reference Signal) is an uplink reference signal sent by a terminal to an access network device. The access network device can determine the uplink channel information from the terminal to the access network device based on the received SRS. SRS is a sequence signal designed based on the Zadoff-Chu sequence and possesses its characteristics. Furthermore, if channel reciprocity exists between the uplink and downlink channels, the access network device can also determine the downlink channel information from the access network device to the terminal based on uplink channel measurements using SRS, according to channel reciprocity. After determining the downlink channel information from the access network device to the terminal, the access network device can perform resource scheduling or precoding processing on the terminal's downlink data transmission based on the downlink channel information.

[0051] Since there are a large number of terminals transmitting SRS, in order to minimize mutual interference between different terminals transmitting SRS and thus improve the performance of channel estimation, mutually orthogonal SRS resources can be allocated to different terminals. Here, two SRS resources are mutually orthogonal if at least one of their time domain, frequency domain, or code domain is different; that is, mutually orthogonal SRS resources satisfy at least one of time division, frequency division, or code division.

[0052] However, due to the large number of terminals, consistently allocating orthogonal SRS resources to different terminals would result in significant resource overhead. How to reduce SRS resource overhead remains a problem to be solved.

[0053] To address the aforementioned issues, this application provides corresponding solutions.

[0054] The communication method and apparatus are described below with reference to the accompanying drawings. It is understood that this application uses access network equipment and terminals as examples of the entities executing the interaction, but this application does not limit the entities executing the interaction. For example, the method executed by the access network equipment in this application can also be implemented by modules (e.g., circuits, chips, or chip systems) in the access network equipment, or by logic nodes, logic modules, or software that can implement all or part of the functions of the access network equipment; the method executed by the terminal in this application can also be implemented by a communication module in the terminal, or by circuits or chips (such as modem chips (also known as baseband chips), or SoC chips containing modem cores, or SIP chips) in the terminal responsible for communication functions.

[0055] Figure 2 is a flowchart illustrating a communication method provided in an embodiment of this application. The method includes the following steps:

[0056] Step 201: The access network device obtains the first information and the second information.

[0057] The first information is used to indicate the information of the first RSRP and the second RSRP of the first port set of CSI-RS. Specifically, the first RSRP information is the RSRP information of the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell, and the second RSRP information is the RSRP information of the first port set determined by the terminal of the second cell based on the CSI-RS sent by the first cell.

[0058] The first information is determined based on CSI-RS on the first resource, which is the resource for the first cell to transmit CSI-RS and the second cell to transmit zero-power CSI-RS. Alternatively, the first information can be understood as indicating the first RSRP information of the first port set of the first cell's CSI-RS transmission measured by the terminal of the first cell, and the second RSRP information of the first port set of the first cell's CSI-RS transmission measured by the terminal of the second cell, when the first cell transmits CSI-RS on the first resource and the second cell transmits zero-power CSI-RS on the first resource.

[0059] In this context, the second cell transmits zero-power CSI-RS in the first resource, which can also be understood as the second cell not transmitting CSI-RS in the first resource.

[0060] It should be noted that the number of ports transmitting CSI-RS in the first cell can be greater than or equal to the number of ports in the first port set. For example, if the number of ports transmitting CSI-RS in the first cell is 32, denoted as ports #0 to #31, and a terminal in the first cell measures the RSRP information of ports #0 to #27 out of the 32 ports transmitting CSI-RS in the first cell, and a terminal in the second cell measures the RSRP information of ports #6 to #31 out of the 32 ports transmitting CSI-RS in the first cell, then the aforementioned first port set refers to the intersection of ports #0 to #27 and ports #6 to #31, that is, the first port set includes ports #6 to #27. For example, if the number of ports transmitting CSI-RS in the first cell is 32, represented by ports #0 to #31, and the terminal in the first cell measures the RSRP information of the 32 ports transmitting CSI-RS in the first cell, and the terminal in the second cell measures the RSRP information of the 32 ports transmitting CSI-RS in the first cell, then the aforementioned first port set includes ports #0 to #31.

[0061] The second information is used to indicate the third RSRP and the fourth RSRP of the second port set of CSI-RS. Specifically, the third RSRP is the RSRP of the second port set determined by the terminal of the first cell based on the CSI-RS transmitted by the second cell, and the fourth RSRP is the RSRP of the second port set determined by the terminal of the second cell based on the CSI-RS transmitted by the second cell. The second information is determined based on the CSI-RS on the second resource, which is the resource where the second cell transmits CSI-RS and the first cell transmits zero-power CSI-RS. Alternatively, the second information can be understood as indicating the third RSRP and the fourth RSRP of the second port set of CSI-RS transmitted by the second cell, as measured by the terminal of the first cell, when the second cell transmits CSI-RS on the second resource and the first cell transmits zero-power CSI-RS on the second resource.

[0062] In this context, the first cell transmits zero-power CSI-RS in the second resource, which can also be understood as the first cell not transmitting CSI-RS in the second resource.

[0063] It should be noted that the number of ports in the second cell that transmit CSI-RS can be greater than or equal to the number of ports in the second port set. For example, if the number of ports in the second cell that transmit CSI-RS is 24, denoted as ports #0 to #23, and the terminal in the first cell measures the RSRP information of ports #0 to #19 out of the 24 ports in the second cell that transmit CSI-RS, and the terminal in the second cell measures the RSRP information of ports #6 to #23 out of the 24 ports in the second cell that transmit CSI-RS, then the aforementioned second port set refers to the intersection of ports #0 to #19 and ports #6 to #23, that is, the second port set includes ports #6 to #19. For example, if the number of ports transmitting CSI-RS in the second cell is 24, represented by ports #0 to #23, and the terminal in the first cell measures the RSRP information of the 24 ports transmitting CSI-RS in the second cell, then the aforementioned second port set includes ports #0 to #23.

[0064] In this application, the port used by the first or second cell to transmit CSI-RS refers to a logical port, and the number of ports is not limited, for example, it can be 1, 2, 4, 8, 12, 16, 24 or 32, etc. Each port is a channel that needs to be probed.

[0065] In this application, the first resource and the second resource may be the same resource or different resources.

[0066] In this application, the size of the first port set and the size of the second port set can be the same or different.

[0067] In this application, the RSRP information obtained by measuring CSI-RS in the first or second cell can be replaced with other information, such as reference signal receiving quality (RSRQ) information or received signal strength indication (RSSI) information, as long as it can reflect the channel quality of the CSI-RS port.

[0068] As one implementation method, the first cell and the second cell can belong to the same access network device. In this scenario, the access network device that executes the embodiment of Figure 2 is the access network device to which the first cell and the second cell belong.

[0069] As another implementation method, the first cell and the second cell can belong to different access network devices. In this scenario, the access network device that performs the embodiment of Figure 2 can be the main access network device.

[0070] Step 202: The access network device configures the same resources for transmitting uplink reference signals for the first terminal in the first cell and the second terminal in the second cell, based on the first information and the second information.

[0071] That is, the first terminal and the second terminal transmit uplink reference signals on the same resources. Here, the uplink reference signal can be SRS or other types of reference signals.

[0072] Based on the above scheme, since the first terminal and the second terminal are configured with the same resources for transmitting uplink reference signals, the resource utilization rate is improved and the overhead of resources for transmitting uplink reference signals is reduced.

[0073] The specific implementation process of the embodiment in Figure 2 above will be described below with reference to Figure 3. Figure 3 is a schematic diagram of the cell relationship provided in the embodiment of this application. The first cell belongs to the primary access network device, and the second cell belongs to the secondary access network device. Of course, if the first cell and the second cell belong to the same access device, then the primary access network device and the secondary access network device refer to the same access network device.

[0074] Step 1: The primary access network device transmits CSI-RS on the first resource through the first cell. The CSI-RS is transmitted through multiple ports, and the secondary access network device transmits zero-power CSI-RS on the first resource through the second cell.

[0075] In this context, the secondary access network equipment transmits zero-power CSI-RS on the first resource through the second cell, which can be understood as the secondary access network equipment not transmitting CSI-RS on the first resource through the second cell.

[0076] Step 2: The terminal measurement main access network device of the first cell sends CSI-RS through the first resource of the first cell to obtain the third information, and reports the third information to the main access network device.

[0077] The third information is used to indicate the information of the first RSRP, which is the RSRP information of the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell.

[0078] For example, the third information is used to indicate the first bitmap corresponding to the terminal of the first cell. The first bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal of the first cell according to the CSI-RS sent by the first cell. That is, the information of the first RSRP includes the RSRP of each port in the first port set determined by the terminal of the first cell according to the CSI-RS sent by the first cell. The number of bits in the first bitmap is equal to the number of ports in the first port set, and the bits of the first bitmap correspond one-to-one with the ports in the first port set.

[0079] The following describes different implementation methods for the third information indicating the first bitmap. The number of bits in the first bitmap is the same as the number of ports in the first port set, and they correspond one-to-one.

[0080] In the first implementation method, the third information includes the first bit map.

[0081] Regarding this implementation method one, in one implementation, if the terminal of the first cell measures that the RSRP of a certain port in the first port set (hereinafter, the first port is taken as an example) is greater than a first threshold, then the first bit corresponding to the first port in the first bit diagram is set to a first value. If the terminal of the first cell measures that the RSRP of the first port in the first port set is less than the first threshold, then the first bit corresponding to the first port in the first bit diagram is set to a second value. If the terminal of the first cell measures that the RSRP of the first port in the first port set is equal to the first threshold, then the first bit corresponding to the first port in the first bit diagram is set to either the first value or the second value. Therefore, when the first bit in the first bit diagram is set to the first value, the first bit is used to indicate that the RSRP of the first port in the first port set is greater than the first threshold (or greater than or equal to the first threshold). When the first bit in the first bit diagram is set to the second value, the first bit is used to indicate that the RSRP of the first port in the first port set is less than the first threshold (or less than or equal to the first threshold). In this application, the first value is "1" and the second value is "0", or the first value is "0" and the second value is "1". This is a consistent explanation and will not be elaborated further. The first threshold here can be pre-configured to the terminal in the first cell or defined by the protocol. This application does not limit the method of setting the first threshold.

[0082] Regarding the first implementation method, in another implementation method, the terminal of the first cell measures the RSRP of each port in the first port set and determines M ports in the first port set, where M is a positive integer. The RSRP of these M ports is greater than or equal to the RSRP of all ports in the first port set except for these M ports. That is, the RSRP of these M ports are the largest M RSRPs. Furthermore, the value of M also satisfies the following conditions: the ratio of the sum of the RSRPs of these M ports to the sum of the RSRPs of all ports in the first port set is greater than or equal to a second threshold; and the ratio of the sum of the largest M-1 RSRPs among the M ports to the sum of the RSRPs of all ports in the first port set is less than the second threshold. Here, the second threshold can be pre-configured to the terminal of the first cell or defined by the protocol. This application does not limit the setting method of the second threshold. A specific example is given below for illustration. Assume the first port set includes 8 ports, numbered #0 to #7, with RSRP values ​​of x0, x1, x2, x3, x4, x5, x6, and x7 respectively. The RSRP values, sorted from largest to smallest, are: x6, x7, x0, x1, x5, x2, x3, x4. If the ratio of (x6+x7+x0) to (x0+x1+x2+x3+x4+x5+x6+x7) is less than a second threshold, and the ratio of (x6+x7+x0+x1) to (x0+x1+x2+x3+x4+x5+x6+x7) is greater than or equal to the second threshold, then the bits corresponding to ports #0, #1, #6, and #7 in the first bitmap are all set to the first value, and the other bits in the first bitmap are all set to the second value. In this case, M is 4.

[0083] In the second implementation method, the third information includes indication information, which is used to indicate the N ports in the first port set and to determine the first bit map.

[0084] Based on this second implementation method, the third information does not include the first bitmap, but instead includes indication information used to determine the first bitmap. Here, N is a positive integer, less than the total number of ports in the first port set, and the size of N is a fixed value, such as a pre-configured or protocol-defined value.

[0085] Furthermore, the RSRP of the N ports is greater than or equal to the RSRP of the ports other than the N ports in the first port set. The access network device can determine the first bit map based on this indication information, and the N bits in the first bit map corresponding to the N ports are set to a first value, while the other bits in the first bit map are set to a second value.

[0086] [Revised from Rule 26, May 2026] Assume the total number of ports in the first port set is K. Terminals in the first cell select N ports from the K ports for RSRP reporting. A total of... There are several ways to combine them, so M bits are needed to represent them. There are several combinations, where M is greater than or equal to The smallest integer. That is, the number of bits contained in the indication information is M. This second implementation method, by limiting the number of ports that need to provide feedback, can reduce the amount of feedback information.

[0087] [Amended according to Rule 26, May 2026] The following example illustrates this. Assume the first port set includes 8 ports, numbered #0 to #7, and N is 5. Therefore, the number of bits contained in the indication information is greater than or equal to... The smallest integer, that is, the indication information contains 6 bits. For example, the RSRP of the 8 ports are: x0, x1, x2, x3, x4, x5, x6, x7, and sorted by RSRP from largest to smallest as: x6, x7, x0, x1, x5, x2, x3, x4. Therefore, the terminal in the first cell needs to indicate that the five ports with the largest RSRP are port #6, port #7, port #0, port #1, and port #5. Assuming that the value of the indication information is 000001, which is used to indicate port #0, port #1, port #5, port #6, and port #7, the indication information reported by the terminal in the first cell to the main access network device is "000001". The main access network device determines that the five ports with the largest RSRP are port #0, port #1, port #5, port #6, and port #7 based on the indication information, and then determines the first bit map. In the first bit map, the bits corresponding to port #0, port #1, port #5, port #6, and port #7 are all set to the first value, and the other bits are all set to the second value.

[0088] The above describes different implementation methods of using third information to indicate the first bitmap. The first bitmap allows feedback on the strength of the RSRP of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell. Furthermore, the strength of the RSRP of different ports can be used to measure the spatial characteristics of the channel. Because feedback is provided through bitmaps or indication information, rather than directly feeding back the measured RSRP value, air interface overhead can be reduced. This is because directly feeding back the RSRP value would incur very high overhead.

[0089] In one implementation method, the third information further includes the sum (or average, or weighted average, etc.) of the RSRP of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell.

[0090] Step 3: The terminal measurement primary access network device of the second cell sends CSI-RS through the first resource of the first cell to obtain the fifth information, and reports the fifth information to the secondary access network device. Then, the secondary access network device sends the fifth information to the primary access network device.

[0091] The fifth information is used to indicate the information of the second RSRP, which is the RSRP information of the first port set determined by the terminal of the second cell based on the CSI-RS sent by the first cell.

[0092] For example, the fifth information is used to indicate the second bitmap corresponding to the terminal of the second cell. The second bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal of the second cell according to the CSI-RS sent by the first cell. That is, the information of the second RSRP includes the RSRP of each port in the first port set determined by the terminal of the second cell according to the CSI-RS sent by the first cell. The number of bits in the second bitmap is equal to the number of ports in the first port set, and the bits of the second bitmap correspond one-to-one with the ports in the first port set.

[0093] Regarding this fifth piece of information, in one implementation method, the fifth piece of information includes a second bitmap; in another implementation method, the fifth piece of information includes indication information used to indicate N ports in the first port set, and this indication information is used to determine the second bitmap. The specific implementation method for the fifth piece of information is similar to that for the aforementioned third piece of information, and can be referred to the foregoing description.

[0094] In one implementation, the fifth information further includes the sum (or average, or weighted average, etc.) of the RSRP of each port in the first port set determined by the terminal of the second cell based on the CSI-RS sent by the first cell.

[0095] Through steps 2 and 3 above, the primary access network device can obtain the first information, which is determined based on the third and fifth information. The first information includes a first bitmap corresponding to the terminal in the first cell and a second bitmap corresponding to the terminal in the second cell. The first bitmap indicates the RSRP of each port in the first port set determined by the terminal in the first cell based on the CSI-RS sent by the first cell, and the second bitmap indicates the RSRP of each port in the first port set determined by the terminal in the second cell based on the CSI-RS sent by the first cell. The first information also includes the sum (or average, or weighted average, etc.) of the RSRPs of each port in the first port set determined by the terminal in the first cell based on the CSI-RS sent by the first cell, and the sum (or average, or weighted average, etc.) of the RSRPs of each port in the first port set determined by the terminal in the second cell based on the CSI-RS sent by the first cell.

[0096] It should be noted that there is no specific order between steps 2 and 3 above.

[0097] Step 4: The terminal measurement auxiliary access network equipment of the first cell sends CSI-RS through the second resource of the second cell to obtain the fourth information, and reports the fourth information to the primary access network equipment.

[0098] The fourth information is used to indicate the information of the third RSRP, which is the RSRP information of the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell.

[0099] For example, the fourth information is used to indicate the third bitmap corresponding to the terminal in the first cell. The third bitmap is used to indicate the RSRP of each port in the second port set determined by the terminal in the first cell according to the CSI-RS sent by the second cell. That is, the information of the third RSRP includes the RSRP of each port in the second port set determined by the terminal in the first cell according to the CSI-RS sent by the second cell. The number of bits in the third bitmap is equal to the number of ports in the second port set, and the bits of the third bitmap correspond one-to-one with the ports in the second port set.

[0100] Regarding this fourth information, in one implementation method, the fourth information includes a third bitmap; in another implementation method, the fourth information includes indication information, which is used to indicate P ports in the second port set, where P is a positive integer and P is less than the total number of ports in the second port set. This indication information is used to determine the third bitmap. The specific implementation method for the fourth information is similar to the aforementioned implementation method for the third information, and can be referred to the foregoing description.

[0101] In one implementation, the fourth information further includes the sum (or average, or weighted average, etc.) of the RSRP of each port in the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell.

[0102] Step 5: The terminal measurement secondary access network device of the second cell sends CSI-RS on the second resource of the second cell to obtain the sixth information, and reports the sixth information to the secondary access network device. Then the secondary access network device sends the sixth information to the primary access network device.

[0103] The sixth information is used to indicate the information of the fourth RSRP, which is the RSRP information of the second port set determined by the terminal of the second cell based on the CSI-RS sent by the second cell.

[0104] For example, the sixth information is used to indicate the fourth bit map corresponding to the terminal of the second cell. The fourth bit map is used to indicate the RSRP of each port in the second port set determined by the terminal of the second cell according to the CSI-RS sent by the second cell. That is, the information of the fourth RSRP includes the RSRP of each port in the second port set determined by the terminal of the second cell according to the CSI-RS sent by the second cell. The number of bits in the fourth bit map is equal to the number of ports in the second port set, and the bits of the fourth bit map correspond one-to-one with the ports in the second port set.

[0105] Regarding this sixth piece of information, in one implementation method, the sixth piece of information includes a fourth bitmap; in another implementation method, the sixth piece of information includes indication information, which is used to indicate P ports in the second port set, where P is a positive integer and P is less than the total number of ports in the second port set. This indication information is used to determine the fourth bitmap. The specific implementation method for the sixth piece of information is similar to the implementation method for the aforementioned third piece of information, and can be referred to the foregoing description.

[0106] In one implementation, the sixth information further includes the sum (or average, or weighted average, etc.) of the RSRP of each port in the second port set determined by the terminal of the second cell based on the CSI-RS sent by the second cell.

[0107] Through steps 4 and 5 above, the primary access network device can obtain the second information, which is determined based on the fourth and sixth information. The second information includes a third bitmap corresponding to the terminal in the first cell and a fourth bitmap corresponding to the terminal in the second cell. The third bitmap indicates the RSRP of each port in the second port set determined by the terminal in the first cell based on the CSI-RS sent by the second cell, and the fourth bitmap indicates the RSRP of each port in the second port set determined by the terminal in the second cell based on the CSI-RS sent by the second cell. The second information also includes the sum (or average, or weighted average, etc.) of the RSRPs of each port in the second port set determined by the terminal in the first cell based on the CSI-RS sent by the second cell, and the sum (or average, or weighted average, etc.) of the RSRPs of each port in the second port set determined by the terminal in the second cell based on the CSI-RS sent by the second cell.

[0108] It should be noted that there is no specific order between steps 4 and 5 above.

[0109] Step 6: The main access network device determines the interference level between the terminals in the first cell and the terminals in the second cell based on the first information and the second information.

[0110] Interference level is used to indicate the degree of mutual interference between terminals in the first cell and terminals in the second cell in the airspace.

[0111] Referring to Figure 3, taking terminal #i in the first cell and terminal #j in the second cell as examples, the interference degree between terminal #i and terminal #j is denoted by a. i,j If it means:

[0112] Among them, P 1,i P represents the sum of RSRPs of the first port set of the first cell CSI-RS measured by terminal #i. 1,j g represents the sum of RSRP of the first port set of the first cell CSI-RS measured by terminal #j. 1,i This represents the first bitmap corresponding to terminal #i, g 1,j P represents the second bitmap corresponding to terminal #j. 2,i P represents the sum of RSRP of the second port set of the second cell CSI-RS measured by terminal #i. 2,j This represents the sum of RSRPs of the second port set of the second cell's CSI-RS measured by terminal #j, g 2,i This represents the third bitmap corresponding to terminal #i, g 2,j This represents the fourth bitmap corresponding to terminal #j, where T represents transpose.

[0113] As an alternative implementation method, the above P 1,i P 1,j P 2,i P 2,j The meaning can also be replaced with: P 1,i P represents the average (or weighted average) RSRP of the first port set of the first cell's CSI-RS measured by terminal #i. 1,j P represents the average (or weighted average) RSRP of the first port set of the first cell's CSI-RS measured by terminal #j. 2,i P represents the average (or weighted average) RSRP of the second port set of the second cell's CSI-RS measured by terminal #i. 2,j This represents the average (or weighted average) RSRP of the second port set of the second cell's CSI-RS as measured by terminal #j.

[0114] Among them, a i,j The smaller the value of , the less spatial interference exists between terminal #i and terminal #j. Therefore, the network tends to allocate the same resources for transmitting uplink reference signals to both terminals #i and #j. Specifically, less spatial interference means lower spatial feature overlap and / or smaller energy differences. Therefore, the less spatial interference, the higher the success rate of the access network device in resolving the uplink reference signals sent by different terminals when two terminals transmit uplink reference signals on the same resources, which can improve the transmission performance of uplink reference signals.

[0115] Step 7: The primary access network device allocates resources for transmitting uplink reference signals to the terminals in the first cell and the terminals in the second cell based on the interference level between the terminals in the first cell and the terminals in the second cell.

[0116] The terminals in the first cell include a first terminal, and the terminals in the second cell include a second terminal. The interference level between the first terminal and the second terminal is less than or equal to the interference level between the first terminal and other terminals in the second cell. The first terminal and the second terminal are allocated the same resources for transmitting uplink reference signals.

[0117] The following example illustrates this. Assume that terminal #1, terminal #2, and terminal #3 exist in the first cell, and terminal #4, terminal #5, and terminal #6 exist in the second cell. Using a... i,j Let represent the interference degree between terminal #i in the first cell and terminal #j in the second cell, where i = 1, 2, 3, j = 4, 5, 6. For terminal #1, if a 1,4 ≤a 1,5 , and a 1,4 ≤a 1,6Then, the same resource #1 for transmitting uplink reference signals is allocated to terminals #1 and #4. For terminal #2, if a... 2,6 ≤a 2,5 If so, then the same resource #2 for transmitting uplink reference signals is allocated to terminals #2 and #6. Optionally, the same resource #3 for transmitting uplink reference signals is allocated to terminals #3 and #5.

[0118] Figure 4 illustrates a possible exemplary block diagram of the communication device involved in the embodiments of this application. As shown in Figure 4, the communication device 400 may include modules or units for implementing the methods described above. In one possible design, the communication device 400 includes a processing unit 402 and a communication unit 403. Optionally, the communication device 400 may further include a storage unit 401 for storing device program code and / or data.

[0119] The communication device 400 can be a network-side device in the above embodiments, such as a network-side access network device, a module (e.g., circuit, chip or chip system) in the access network device, or a logic node, logic module or software that can implement all or part of the functions of the access network device.

[0120] For example, in one embodiment, processing unit 402 is configured to acquire first information and second information; wherein, the first information is used to indicate information about the first RSRP and the second RSRP of the first port set of CSI-RS, the first RSRP information being the RSRP of the first port set determined by the terminal of the first cell based on the CSI-RS transmitted by the first cell, and the second RSRP information being the RSRP of the first port set determined by the terminal of the second cell based on the CSI-RS transmitted by the first cell, the first information being determined based on CSI-RS on a first resource, the first resource being the resource for transmitting CSI-RS by the first cell and transmitting zero-power CSI-RS by the second cell; the second information is used to indicate information about the second RSRP of the first port set of CSI-RS. The information includes a third RSRP and a fourth RSRP for the port set. The third RSRP is determined by the terminal of the first cell based on the CSI-RS transmitted by the second cell. The fourth RSRP is determined by the terminal of the second cell based on the CSI-RS transmitted by the second cell. The second information is determined based on the CSI-RS on the second resource, which is the resource for transmitting CSI-RS by the second cell and the resource for transmitting zero-power CSI-RS by the first cell. Based on the first and second information, the communication unit 403 configures the same resources for transmitting uplink reference signals for the first terminal of the first cell and the second terminal of the second cell.

[0121] In one possible implementation, the first information includes a first bitmap corresponding to the terminal in the first cell and a second bitmap corresponding to the terminal in the second cell. The first bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal in the first cell according to the CSI-RS sent by the first cell. The second bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal in the second cell according to the CSI-RS sent by the first cell. The number of bits in both the first and second bitmaps is equal to the number of ports in the first port set, and the bits in both the first and second bitmaps are related to the number of ports in the first port set. The first bit map corresponds one-to-one with the second bit map. The second information includes a third bit map corresponding to the terminal in the first cell and a fourth bit map corresponding to the terminal in the second cell. The third bit map is used to indicate the RSRP of each port in the second port set determined by the terminal in the first cell according to the CSI-RS sent by the second cell. The fourth bit map is used to indicate the RSRP of each port in the second port set determined by the terminal in the second cell according to the CSI-RS sent by the second cell. The number of bits in the third bit map and the number of bits in the fourth bit map are both equal to the number of ports in the second port set, and the bits in the third bit map and the bits in the fourth bit map correspond one-to-one with the ports in the second port set.

[0122] In one possible implementation, when the value of the first bit in the first bit diagram is a first value, the first bit is used to indicate that the RSRP of the first port in the first port set is greater than or equal to a first threshold; when the value of the first bit in the first bit diagram is a second value, the first bit is used to indicate that the RSRP of the first port in the first port set is less than the first threshold.

[0123] In one possible implementation, the M bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the M bits are assigned a second value. The RSRP of the M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of the ports in the first port set besides the M ports. Here, M is a positive integer, and the size of M satisfies the following conditions: the ratio of the sum of the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is greater than or equal to a second threshold, and the ratio of the sum of the largest M-1 RSRPs among the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is less than the second threshold.

[0124] In one possible implementation, the N bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the N bits are assigned a second value. The RSRP of the N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of the ports in the first port set besides the N ports. Here, N is a positive integer, and the size of N is pre-configured.

[0125] In one possible implementation, the processing unit 402 is further configured to receive indication information from the terminal of the first cell via the communication unit 403, the indication information being used to indicate the N ports; and to determine the first bitmap based on the indication information.

[0126] In one possible implementation, the first information includes the sum of RSRPs of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell, and the sum of RSRPs of each port in the first port set determined by the terminal of the second cell based on the CSI-RS sent by the first cell; the second information includes the sum of RSRPs of each port in the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell, and the sum of RSRPs of each port in the second port set determined by the terminal of the second cell based on the CSI-RS sent by the second cell.

[0127] The communication device 400 can be a terminal-side device as described in the above embodiments, such as a terminal or a communication module in a terminal, or a circuit or chip in a terminal that is responsible for communication functions.

[0128] For example, in one embodiment, processing unit 402 is configured to acquire third information and fourth information; wherein, the third information is configured to indicate information of the first RSRP of the first port set of CSI-RS, the information of the first RSRP being the RSRP of the first port set determined by the terminal of the first cell based on the CSI-RS transmitted by the first cell, the third information being determined based on CSI-RS on a first resource, the first resource being the resource for CSI-RS transmitted by the first cell and the resource for zero-power CSI-RS transmitted by the second cell; the fourth information is configured to indicate information of the third RSRP of the second port set of CSI-RS, the information of the third RSRP being the RSRP of the second port set determined by the terminal of the first cell based on the CSI-RS transmitted by the second cell, the fourth information being determined based on CSI-RS on a second resource, the second resource being the resource for CSI-RS transmitted by the second cell and the resource for zero-power CSI-RS transmitted by the first cell; and to transmit the third information and the fourth information through communication unit 403.

[0129] In one possible implementation, the third information is used to indicate a first bitmap corresponding to the terminal of the first cell, the first bitmap indicating the RSRP of each port in the first port set determined by the terminal of the first cell according to the CSI-RS sent by the first cell; wherein, the number of bits in the first bitmap is equal to the number of ports in the first port set, and the bits of the first bitmap correspond one-to-one with the ports in the first port set; the fourth information is used to indicate a third bitmap corresponding to the terminal of the first cell, the third bitmap indicating the RSRP of each port in the second port set determined by the terminal of the first cell according to the CSI-RS sent by the second cell; wherein, the number of bits in the third bitmap is equal to the number of ports in the second port set, and the bits of the third bitmap correspond one-to-one with the ports in the second port set.

[0130] In one possible implementation, when the value of the first bit in the first bit diagram is a first value, the first bit is used to indicate that the RSRP of the first port in the first port set is greater than or equal to a first threshold; when the value of the first bit in the first bit diagram is a second value, the first bit is used to indicate that the RSRP of the first port in the first port set is less than the first threshold.

[0131] In one possible implementation, the M bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the M bits are assigned a second value. The RSRP of the M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of the ports in the first port set besides the M ports. Here, M is a positive integer, and the size of M satisfies the following conditions: the ratio of the sum of the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is greater than or equal to a second threshold, and the ratio of the sum of the largest M-1 RSRPs among the RSRPs of the M ports in the first port set to the sum of the RSRPs of all ports in the first port set is less than the second threshold.

[0132] In one possible implementation, the N bits in the first bitmap are assigned a first value, and the other bits in the first bitmap besides the N bits are assigned a second value. The RSRP of the N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of the ports in the first port set besides the N ports. Here, N is a positive integer, and the size of N is pre-configured.

[0133] In one possible implementation, the third information includes indication information used to indicate the N ports and to determine the first bitmap.

[0134] In one possible implementation, the third information includes the sum of RSRPs of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell; the fourth information includes the sum of RSRPs of each port in the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell.

[0135] In one possible design, when the communication device 400 is a terminal or a communication module within a terminal, the function of the processing unit 402 can be implemented by one or more processors. Specifically, the processor may include a modem chip, or a system-on-a-chip (SoC) chip or a SIP chip containing a modem core. The function of the communication unit 403 can be implemented by transceiver circuitry.

[0136] In one possible design, when the communication device 400 is a circuit or chip in a terminal responsible for communication functions, such as a modem chip or a system-on-a-chip (SoC) or SIP chip containing a modem core, the function of the processing unit 402 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the communication unit 403 can be implemented by an interface circuit or data transceiver circuit on the aforementioned chip.

[0137] It is understood that the division of units in the above-described device is merely a logical functional division. One function can correspond to one functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or some units can be integrated onto a single physical entity, or distributed across different physical entities. Furthermore, the aforementioned functional units can be implemented in hardware, software, or a combination of both. Whether a function is executed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for specific applications, but such implementations should not be considered beyond the scope of this application.

[0138] In one example, the functional unit in any of the above devices may be one or more integrated circuits configured to implement the above methods, such as: one or more application-specific integrated circuits (ASICs), or one or more central processing units (CPUs), one or more microcontroller units (MCUs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0139] In one example, storage unit 401 may include random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory and / or registers, etc.

[0140] Figure 5 is a schematic diagram of the structure of a terminal 500 provided in an embodiment of this application. This terminal 500 corresponds to the terminal shown in Figure 1 and is used to implement the operations of the terminal in the above embodiments. As shown in Figure 5, the terminal includes: one or more antennas 510, a radio frequency processing system 520, and a processor system 530.

[0141] In the downlink or sidelink direction, the RF processing system 520 receives RF signals through the antenna 510 and sends the RF-processed signals to the processor system 530 for further processing. In the uplink or sidelink direction, the processor system 530 processes the terminal-side information and sends it to the RF processing system 520, which then processes the signal and transmits it through the antenna 510.

[0142] In one example, the radio frequency (RF) processing system 520 serves as the communication interface for external communication of the terminal and may include a radio frequency frontend (RFFE) 521 and an RF transceiver 522. The RFFE 521 is primarily used for one or more processing operations, such as shaping, passband selection, or gain adjustment, on the RF signals received by the antenna or those to be transmitted through the antenna. It may include one or more components such as RF switches, duplexers, filters, power amplifiers, antenna tuners, and low-noise amplifiers. The RFFE 521 can be a circuit system composed of multiple discrete components or integrated into one or more chips. The RF transceiver 522 processes the RF signals received by the RFFE into baseband / IF signals for further processing by the processor system 530, and processes the baseband / IF signals provided by the processor system 530 into RF signals for transmission to the RFFE 521. The baseband / IF signals transmitted between the RF transceiver 522 and the processor system 530 can be digital or analog signals. The radio frequency transceiver 522 can be implemented by one or more chips, which are commonly referred to as radio frequency chips (RFICs).

[0143] In one example, processor system 530 may include one or more processors for processing signals and executing one or more communication protocols. Optionally, processor system 530 may also include memory 536. In one example, the one or more processors include at least one baseband processor 531 (also known as a modem processor). Memory 536 is used to store data and / or computer program instructions. Optionally, processor system 530 may also include one or more application processors 532 for implementing processing of the terminal operating system and application layer. Optionally, processor system 530 may also include one or more of a voice subsystem 533, a multimedia subsystem 534, or an interface circuit 535. The voice subsystem 533 is used to process voice signals, the multimedia subsystem 534 is used to handle multimedia-related operations, such as video encoding / decoding, image processing, etc., and the interface circuit 535 is used to enable communication with other terminal components, such as a display 540, an input device 550, memory 560, etc. The above-mentioned components in processor system 530 can communicate with each other via a bus or communication interface circuit.

[0144] In one example, the processor system 530 can be packaged as a single processor chip, such as a SoC chip or a SIP chip. In another example, the processor system 530 can be a system of multiple chips, for example, the baseband processor 531 can be packaged as a single chip, or packaged with part or all of the circuitry of the radio frequency processing system into a single chip.

[0145] In one example, memory 536 can be on-chip memory, i.e., located on the processor system 530 chip. In another example, memory 560 can be off-chip memory, i.e. located outside the processor system 530 chip.

[0146] In one example, the baseband processor 531 may include one or more processor cores 5311 and interface circuitry 5314. The one or more processor cores 5311 are used to process signals and execute one or more communication protocols. Optionally, the baseband processor 531 may also include a memory 5312 for storing at least a portion of the corresponding computer program instructions and / or data. In one example, the one or more processor cores 5311 execute the computer program instructions stored in the memory 5312 to implement the relevant operations in the above method embodiments. In this disclosure, the memory 5312 storing the corresponding computer program instructions and / or data may mean that the memory 5312 stores all the corresponding computer program instructions and / or data for the processor core 5311 to execute; or it may mean that the memory 5312 stores a portion of the corresponding computer program instructions and / or data, which includes the computer program instructions and / or data currently needed to be executed by the processor core 5311. The memory 5312 can store different portions of computer program instructions and / or data multiple times for the processor core 5311 to execute in order to implement the relevant operations in the above method embodiments. Interface circuit 5314 serves as a communication interface for communication with other components, such as transmitting signals with RF processing system 520, communicating with other subsystems and related components of processor system 530 via bus, such as transmitting data control signals with application processor 532, and transmitting data or computer program instructions with memory 536 or memory 560. Optionally, to reduce the load on the processor core, baseband signal processing circuit 5313 can also be provided to perform at least some baseband signal processing, including one or more of signal demodulation, modulation, encoding, or decoding.

[0147] In one example, the communication device provided in this application may be a terminal 500, a communication module including a processor system 530 and a radio frequency system 520, or a baseband processor 531.

[0148] The processor, processor system, application processor, baseband processor, processor circuit, or processor core mentioned above can be collectively referred to as a processor. The processor may include one or more of the following: central processing unit (CPU), digital signal processor (DSP), microprocessor unit (MPU), microcontroller unit (MCU), graphics processing unit (GPU), field programmable gate array (FPGA), artificial intelligence processor (AI processor), or neural processing unit (NPU).

[0149] The aforementioned memory may include one or more of the following storage media: random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), phase-change memory (PCM), resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), cache, register, read-only memory (ROM), flash memory, erasable programmable read-only memory (EPROM), hard disk, etc. In one example, computer program instructions for executing the above embodiments may be stored on non-volatile memory, such as at least a portion of the aforementioned memory 560 (e.g., one or more of ROM, flash memory, EPROM, or hard disk). When the terminal is running, the corresponding computer program instructions may be partially or wholly loaded onto a memory with a faster transfer speed than the processor, such as at least a portion of memory 536 and / or memory 5312 (e.g., one or more of RAM, SRAM, DRAM, PCM, RERAM, MRAM, FRAM, cache, or register), for the processor to execute in order to implement the steps in the above method embodiments.

[0150] In one example, the RF transceiver 522 and the RF front-end 521 can also be packaged in a single chip. In another example, the RF transceiver 522, the RF front-end 521, and the baseband processor 531 can also be packaged in a single chip.

[0151] The terms "system" and "network" in the embodiments of this application may be used interchangeably. "At least one" means one or more, and "multiple" means two. This application provides a chip (or chip system) including a processor for implementing any of the above method embodiments.

[0152] This application provides a computer-readable storage medium storing a computer program or instructions that, when executed, implement any of the above-described method embodiments.

[0153] This application provides a computer program product, which includes a computer program or instructions that, when executed, implement any of the above-described method embodiments.

[0154] This application provides a communication system, including the access network device in the above method embodiments, and also including a terminal in the first cell and / or a terminal in the second cell in the above method embodiments.

[0155] The method steps in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, compact disc read-only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Furthermore, the ASIC can reside in a first network element or a store-and-forward terrestrial function network element. Alternatively, the processor and storage medium can exist as discrete components in access network equipment or terminal equipment.

[0156] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. A computer program is a set of instructions that directs each step of an action of an electronic computer or other device with message processing capabilities. It is typically written in a programming language and runs on a target architecture. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed, in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium can be volatile or non-volatile, or it can include both types of storage media.

[0157] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0158] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects; in the formulas of this application, the character " / " indicates a "division" relationship between the preceding and following related objects.

[0159] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

[0160] The terms "system" and "network" in this application embodiment are used interchangeably. "At least one" refers to one or more, and "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B, or C" includes A, B, C, AB, AC, BC, or ABC; "at least one of A, B, and C" can also be understood as including A, B, C, AB, AC, BC, or ABC. Furthermore, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in this application embodiment are used to distinguish multiple objects and are not used to limit the order, sequence, priority, or importance of multiple objects.

[0161] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, etc.) containing computer-usable program code.

[0162] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0163] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0164] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0165] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A communication method, characterized in that, include: Acquire first information and second information; wherein, the first information is used to indicate information about the first reference signal received power (RSRP) and the second RSRP of the first port set of the Channel State Information Reference Signal (CSI-RS). The first RSRP information is the RSRP of the first port set determined by the terminal of the first cell based on the CSI-RS transmitted by the first cell. The second RSRP information is the RSRP of the first port set determined by the terminal of the second cell based on the CSI-RS transmitted by the first cell. The first information is determined based on the CSI-RS on the first resource, where the first resource is the CSI-RS transmitted by the first cell and the second cell. Resources for transmitting zero-power CSI-RS; the second information is used to indicate the third RSRP and fourth RSRP information of the second port set of CSI-RS, wherein the third RSRP information is the RSRP information of the second port set determined by the terminal of the first cell based on the CSI-RS transmitted by the second cell, and the fourth RSRP information is the RSRP information of the second port set determined by the terminal of the second cell based on the CSI-RS transmitted by the second cell, the second information is determined based on CSI-RS on the second resource, and the second resource is the resource for transmitting CSI-RS by the second cell and transmitting zero-power CSI-RS by the first cell; Based on the first information and the second information, the same resources for transmitting uplink reference signals are configured for the first terminal in the first cell and the second terminal in the second cell.

2. The method as described in claim 1, characterized in that, The first information includes a first bitmap corresponding to the terminal in the first cell and a second bitmap corresponding to the terminal in the second cell. The first bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal in the first cell according to the CSI-RS sent by the first cell. The second bitmap is used to indicate the RSRP of each port in the first port set determined by the terminal in the second cell according to the CSI-RS sent by the first cell. The number of bits in the first bitmap and the number of bits in the second bitmap are both equal to the number of ports in the first port set, and the bits in the first bitmap and the bits in the second bitmap correspond one-to-one with the ports in the first port set. The second information includes a third bitmap corresponding to the terminal in the first cell and a fourth bitmap corresponding to the terminal in the second cell. The third bitmap is used to indicate the RSRP of each port in the second port set determined by the terminal in the first cell according to the CSI-RS sent by the second cell. The fourth bitmap is used to indicate the RSRP of each port in the second port set determined by the terminal in the second cell according to the CSI-RS sent by the second cell. The number of bits in the third bitmap and the number of bits in the fourth bitmap are both equal to the number of ports in the second port set, and each bit in the third bitmap and the fourth bitmap corresponds one-to-one with a port in the second port set.

3. The method as described in claim 2, characterized in that, When the value of the first bit in the first bit diagram is the first value, the first bit is used to indicate that the RSRP of the first port in the first port set is greater than or equal to the first threshold. When the value of the first bit in the first bit diagram is the second value, the first bit is used to indicate that the RSRP of the first port in the first port set is less than the first threshold.

4. The method as described in claim 2, characterized in that, The M bits in the first bit map are each a first value, and the other bits in the first bit map besides the M bits are each a second value. The RSRP of the M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of the ports in the first port set besides the M ports. Where M is a positive integer, and the size of M satisfies the following conditions: the ratio of the sum of RSRP of the M ports in the first port set to the sum of RSRP of all ports in the first port set is greater than or equal to the second threshold, and the ratio of the sum of the largest M-1 RSRPs among the M ports in the first port set to the sum of RSRP of all ports in the first port set is less than the second threshold.

5. The method as described in claim 2, characterized in that, The N bits in the first bit map are each a first value, and the other bits in the first bit map besides the N bits are each a second value. The RSRP of the N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of the ports in the first port set besides the N ports. Where N is a positive integer, and the size of N is pre-configured.

6. The method as described in claim 5, characterized in that, Also includes: Receive indication information from the terminal in the first cell, the indication information being used to indicate the N ports; The first bitmap is determined based on the indicated information.

7. The method according to any one of claims 1 to 6, characterized in that, The first information includes the sum of RSRPs of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell, and the sum of RSRPs of each port in the first port set determined by the terminal of the second cell based on the CSI-RS sent by the first cell. The second information includes the sum of RSRPs of each port in the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell, and the sum of RSRPs of each port in the second port set determined by the terminal of the second cell based on the CSI-RS sent by the second cell.

8. A communication method, characterized in that, include: The third and fourth information are obtained; wherein, the third information is used to indicate the information of the first reference signal received power (RSRP) of the first port set of the Channel State Information Reference Signal (CSI-RS), the information of the first RSRP is the RSRP information of the first port set determined by the terminal of the first cell based on the CSI-RS transmitted by the first cell, the third information is determined based on the CSI-RS on the first resource, the first resource being the resource for the first cell to transmit CSI-RS and the second cell to transmit zero-power CSI-RS; the fourth information is used to indicate the information of the third RSRP of the second port set of CSI-RS, the information of the third RSRP is the RSRP information of the second port set determined by the terminal of the first cell based on the CSI-RS transmitted by the second cell, the fourth information is determined based on the CSI-RS on the second resource, the second resource being the resource for the second cell to transmit CSI-RS and the first cell to transmit zero-power CSI-RS; Send the third and fourth information.

9. The method as described in claim 8, characterized in that, The third information is used to indicate the first bit map corresponding to the terminal of the first cell. The first bit map is used to indicate the RSRP of each port in the first port set determined by the terminal of the first cell according to the CSI-RS sent by the first cell. The number of bits in the first bit map is equal to the number of ports in the first port set, and the bits of the first bit map correspond one-to-one with the ports in the first port set. The fourth information is used to indicate the third bit map corresponding to the terminal of the first cell. The third bit map is used to indicate the RSRP of each port in the second port set determined by the terminal of the first cell according to the CSI-RS sent by the second cell. The number of bits in the third bit map is equal to the number of ports in the second port set, and the bits of the third bit map correspond one-to-one with the ports in the second port set.

10. The method as described in claim 9, characterized in that, When the value of the first bit in the first bit diagram is the first value, the first bit is used to indicate that the RSRP of the first port in the first port set is greater than or equal to the first threshold. When the value of the first bit in the first bit diagram is the second value, the first bit is used to indicate that the RSRP of the first port in the first port set is less than the first threshold.

11. The method as described in claim 9, characterized in that, The M bits in the first bit map are each a first value, and the other bits in the first bit map besides the M bits are each a second value. The RSRP of the M ports in the first port set corresponding to the M bits is greater than or equal to the RSRP of the ports in the first port set besides the M ports. Where M is a positive integer, and the size of M satisfies the following conditions: the ratio of the sum of RSRP of the M ports in the first port set to the sum of RSRP of all ports in the first port set is greater than or equal to the second threshold, and the ratio of the sum of the largest M-1 RSRPs among the M ports in the first port set to the sum of RSRP of all ports in the first port set is less than the second threshold.

12. The method as described in claim 9, characterized in that, The N bits in the first bit map are each a first value, and the other bits in the first bit map besides the N bits are each a second value. The RSRP of the N ports in the first port set corresponding to the N bits is greater than or equal to the RSRP of the ports in the first port set besides the N ports. Where N is a positive integer, and the size of N is pre-configured.

13. The method as described in claim 12, characterized in that, The third information includes indication information, which is used to indicate the N ports and to determine the first bitmap.

14. The method according to any one of claims 8 to 13, characterized in that, The third information includes the sum of RSRPs of each port in the first port set determined by the terminal of the first cell based on the CSI-RS sent by the first cell; The fourth information includes the sum of RSRPs of each port in the second port set determined by the terminal of the first cell based on the CSI-RS sent by the second cell.

15. A communication device, characterized in that, Includes modules for performing the method of any one of claims 1 to 7, or the method of any one of claims 8 to 14.

16. A communication device, characterized in that, It includes a processor and an interface circuit, the processor being configured to communicate with other devices via the interface circuit to implement the method of any one of claims 1 to 7, or to implement the method of any one of claims 8 to 14.

17. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when executed, implement the method of any one of claims 1 to 7, or the method of any one of claims 8 to 14.

18. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed, implement the method of any one of claims 1 to 7, or the method of any one of claims 8 to 14.

19. A chip, characterized in that, The chip includes a processor for implementing the method of any one of claims 1 to 7, or the method of any one of claims 8 to 14.

20. A communication system, characterized in that, include: An access network device for implementing the method of any one of claims 1 to 7, and a terminal for implementing the method of any one of claims 8 to 14.

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