Indication method and communication device

Abstract

Disclosed are an indication method and a communication device, the method comprising: receiving a control signaling from a network device, the control signaling comprising a first field; in response to the first field, determining a PRB set; on the PRB set, interference signals received by the target terminal equipment on any interference DMRS port are from the same paired scheduling terminal equipment. By adopting the embodiment of the invention, the efficiency and reliability of channel estimation can be improved, and the power consumption of the target terminal equipment can be reduced.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an indication method and a communication device. Background Art

[0002] Multiple user-multiple input and multiple output (MU-MIMO) technology can support multiple user equipment (UE) to transmit on the same time-frequency resources, thereby improving the utilization of spatial resources and increasing cell capacity. The same time-frequency resources serve multiple UEs, and MU-MIMO interference may occur. In order to suppress or eliminate the impact of MU-MIMO interference, the UE receiver can adopt an interference suppression algorithm to improve the receiving throughput or improve the demodulation performance. Interference suppression algorithms, such as the minimum mean square error-interference rejection combining (MMSE-IRC) algorithm, perform blind detection of interference DMRS ports before performing frequency domain equalization, and then perform channel estimation for the interference DMRS port to estimate the channel response between the UE receiving antenna and the interference port.

[0003] How to improve the blind detection reliability of the interference DMRS port and the efficiency and reliability of channel estimation are technical problems that need to be solved urgently. Summary of the invention

[0004] The embodiments of the present application provide an indication method and a communication device, which are helpful to improve the blind detection reliability of the interference DMRS port, improve the efficiency and reliability of channel estimation, and help reduce the power consumption of the target terminal device.

[0005] In the first aspect, an embodiment of the present application provides an indication method, which can be executed by a target terminal device, or by a device matched with the target terminal device, such as a processor, a chip or a chip module. Among them, the target terminal device and the interfering terminal device are relative concepts. For example, if terminal device B has an impact on the transmission of terminal device A, then terminal device A can be used as a target terminal device, and terminal device B can be used as an interfering terminal device. The method may include: receiving control signaling from a network device, the control signaling includes a first field; in response to the first field, determining a physical resource block (PRB) set; on the PRB set, the interference signal received by the target terminal device on any interference demodulation reference signal (DMRS) port originates from the same paired scheduling terminal device.

[0006] The paired scheduling terminal device refers to the Co-schedule UE, which can be understood as an interference terminal device.

[0007] It can be seen that the first field in the control signaling indicates the PRB set, so that the target terminal device can perform joint detection of interference DMRS port power based on the PRB set. Compared with the target terminal device performing interference DMRS port power detection in units of a single PRB, the efficiency and reliability of interference DMRS port detection can be improved, and the amount of calculation of the target terminal device can be reduced, which helps to improve the efficiency and reliability of channel estimation and helps to save power consumption of the target terminal device.

[0008] In a possible implementation, the above PRB set is all PRBs occupied by the target terminal device. Thus, the target terminal device can perform joint detection of interference DMRS port power based on the entire PRB range, which can improve the efficiency and reliability of interference DMRS port detection, help improve the efficiency and reliability of channel estimation, and help save power consumption of the target terminal device.

[0009] In a possible implementation, the PRB set is part of all PRBs occupied by the target terminal device, for example, 50% of the PRBs or 20% of the PRBs occupied by the target terminal device. Thus, the target terminal device can perform joint detection of interference DMRS port power based on part of the PRBs, which still has a certain gain compared to power detection based on a single PRB, can improve the efficiency and reliability of interference DMRS port detection, help improve the efficiency and reliability of channel estimation, and help save power consumption of the target terminal device.

[0010] The network device allocates a DMRS port to the target terminal device. The PRB occupied by the target terminal device refers to the PRB allocated by the network device to the target terminal device on the DMRS port. The DMRS port allocated by the network device to the target terminal device is the same as the DMRS sequence of the above-mentioned interfering DMRS port, and is distinguished by time division multiplexing (TDM), frequency division multiplexing (FDM) or orthogonal cover code (OCC).

[0011] In a possible implementation, the starting PRB of the above part of PRBs is the starting PRB in the PRBs occupied by the target terminal device. That is, the starting position of the above PRB set is the same as the starting position in the PRBs occupied by the target terminal device.

[0012] In a possible implementation, before receiving the control signaling from the network device, a radio resource control (RRC) message from the network device is received, and the RRC message is used to configure a PRB set candidate item, and the PRB set item includes the above-mentioned PRB set. It can be understood that the network device pre-configures at least one PRB set for the target terminal device, and then dynamically schedules the target terminal device to perform interference DMRS port power joint detection on which PRB set through control signaling. In the RRC establishment process, the PRB set candidate items are configured through the RRC message, so that in the dynamic scheduling process, the control signaling output based on the transmission time interval (TTI) scheduling indicates the target terminal device based on which specific part of the PRB set to perform interference DMRS port power joint detection, which helps to improve the reliability of interference DMRS port blind detection, and the efficiency and reliability of channel estimation, and helps to save the power consumption of the target terminal device.

[0013] In a possible implementation, the RRC message is also used to indicate the starting PRB of the PRB set. In the case where the PRB set is part of the PRBs in all the PRBs occupied by the target terminal device, the RRC message may indicate the starting position of the part of the PRBs so that the target terminal device performs the interference DMRS port power joint detection based on the part of the PRBs under dynamic scheduling.

[0014] In a possible implementation manner, the control signaling may be downlink control information (downlink control information, DCI) or media access control-control signaling (media access control-control element, MAC-CE).

[0015] In a possible implementation, the method further includes: performing joint detection of interference DMRS port power according to the PRB set to determine the average interference power corresponding to the PRB set, thereby helping to improve the blind detection reliability of the interference DMRS port, the efficiency and reliability of channel estimation, and helping to save power consumption of the target terminal device.

[0016] In a second aspect, an embodiment of the present application provides an indication method, which can be executed by a network device, or by a device matching the network device, such as a processor, a chip, or a chip module. The method may include: sending a control signaling to a target terminal device, the control signaling includes a first field, and the first field is used to indicate a PRB set for performing DMRS port power joint detection. It can be understood that the terminal device that receives the control signaling can perform DMRS port power joint detection based on the PRB set indicated by the first field. The terminal device that receives the control signaling is the target terminal device.

[0017] It can be seen that by indicating the PRB set for performing DMRS port power joint detection through the first field in the control signaling, the target terminal device can perform interference DMRS port power joint detection based on the PRB set, which helps to improve the efficiency and reliability of channel estimation and helps to save power consumption of the target terminal device.

[0018] In a possible implementation, the PRB set is all PRBs occupied by the target terminal device, so that the target terminal device can perform joint detection of interference DMRS port power based on all PRBs, which helps to improve the efficiency and reliability of channel estimation and helps to save power consumption of the target terminal device.

[0019] In a possible implementation, the PRB set is part of all PRBs occupied by the target terminal device, for example, 50% of the PRBs, or 20% of the PRBs occupied by the target terminal device. Thus, the target terminal device can perform joint detection of interference DMRS port power based on part of the PRBs, which helps to improve the efficiency and reliability of channel estimation and helps to save power consumption of the target terminal device.

[0020] The network device allocates a DMRS port to the target terminal device. The PRB occupied by the target terminal device refers to the PRB allocated by the network device to the target terminal device on the DMRS port. The DMRS port allocated by the network device to the target terminal device is the same as the DMRS sequence of the above-mentioned interfering DMRS port, and is distinguished by TDM, FDM or OCC.

[0021] In a possible implementation, the starting PRB of the above part of PRBs is the starting PRB in the PRBs occupied by the target terminal device. That is, the starting position of the above PRB set is the same as the starting position in the PRBs occupied by the target terminal device.

[0022] In a possible implementation, before sending control signaling to the target terminal device, an RRC message is sent to the target terminal device, and the RRC message is used to configure a PRB candidate set, and the PRB candidate set includes the above-mentioned PRB set. It can be understood that the network device pre-configures at least one PRB set for the target terminal device, and then dynamically schedules the target terminal device to perform interference DMRS port power joint detection on which PRB set through control signaling. During the RRC establishment process, the PRB set candidate options are configured through RRC messages, so that during the dynamic scheduling process, the control signaling based on the TTI scheduling output indicates the target terminal device based on which specific part of the PRB set to perform interference DMRS port power joint detection, which can improve the efficiency and reliability of interference DMRS port detection, help improve the reliability of interference DMRS port blind detection, the efficiency and reliability of channel estimation, and help save power consumption of the target terminal device.

[0023] In a possible implementation, the RRC message is also used to indicate the starting PRB of the PRB set. In the case where the PRB set is part of the PRBs in all PRBs occupied by the target terminal device, the RRC message may indicate the starting position of the part of the PRBs so that under dynamic scheduling, the target terminal device performs joint detection of interference DMRS port power based on the part of the PRBs. In each TTI scheduling, the control signaling may indicate a specific PRB set.

[0024] In a possible implementation, the control signaling may be DCI or MAC-CE. The PRB set is indicated by DCI or MAC-CE so that the target terminal device performs interfering DMRS port power joint detection based on the PRB set, which helps to improve the reliability of interfering DMRS port blind detection, improve the efficiency and reliability of channel estimation, and help save power consumption of the target terminal device.

[0025] In a third aspect, an embodiment of the present application provides a communication device, the communication device comprising:

[0026] A communication unit, configured to receive a control signaling from a network device, wherein the control signaling includes a first field;

[0027] The processing unit is used to determine a PRB set in response to the first field; on the PRB set, the interference signal received by the target terminal device on any interference demodulation reference signal (DMRS) port comes from the same paired scheduling terminal device.

[0028] Alternatively, the communication device comprises:

[0029] A communication unit is used to send a control signaling to a target terminal device, wherein the control signaling includes a first field, and the first field is used to indicate a PRB set for performing DMRS port power joint detection.

[0030] In a fourth aspect, an embodiment of the present application provides a terminal device, comprising a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps in the method involved in the first aspect above.

[0031] In a fifth aspect, an embodiment of the present application provides a network device, comprising a processor, a memory, and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to implement the steps in the method involved in the above-mentioned second aspect.

[0032] In a sixth aspect, an embodiment of the present application provides a chip, comprising a processor, wherein the processor executes the steps in the method involved in the first aspect above, or executes the steps in the method involved in the second aspect above.

[0033] In the seventh aspect, an embodiment of the present application provides a chip module, including a communication interface and a chip, wherein the chip includes a processor, wherein the processor executes the steps in the method involved in the above-mentioned first aspect, or executes the steps in the method involved in the above-mentioned second aspect.

[0034] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program or instructions, and when the computer program or instructions are executed, the steps in the method involved in the first aspect above are implemented, or the steps in the method involved in the second aspect above are implemented.

[0035] In a ninth aspect, an embodiment of the present application provides a computer program product, comprising a computer program or instructions, wherein when the computer program or instructions are executed, the steps in the method involved in the first aspect above are implemented, or the steps in the method involved in the second aspect above are implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of a system architecture using an embodiment of the present application;

[0037] Figure 2A-2C These are several example diagrams of MU-MIMO resource allocation methods;

[0038] Figure 3 is a schematic diagram of a port of a single-symbol DMRS;

[0039] Figure 4 It is a schematic diagram of a channel estimation process;

[0040] Figure 5 It is a flowchart of an indication method provided in an embodiment of the present application;

[0041] Fig. 6A It is a flowchart of several examples provided in the embodiments of the present application;

[0042] Figure 6B It is a flowchart of several examples provided in the embodiments of the present application;

[0043] Figure 6C It is a flowchart of several examples provided in the embodiments of the present application;

[0044] Fig. 7A is a structural diagram of a communication device provided in an embodiment of the present application;

[0045] Figure 7B is a structural diagram of another communication device provided in an embodiment of the present application;

[0046] Figure 8 is a structural diagram of another communication device provided in an embodiment of the present application;

[0047] Fig. 9 It is a structural schematic diagram of a chip module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] In the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previously associated objects are in an "or" relationship.

[0049] It should be understood that in this application, "at least one" means one or more; "plurality" means two or more. In addition, "equal to" in this application can be used in conjunction with "greater than" or "less than". When "equal to" is used in conjunction with "greater than", the technical solution of "greater than" is adopted; when "equal to" is used in conjunction with "less than", the technical solution of "less than" is adopted.

[0050] First, the system architecture involved in this application is explained.

[0051] The present application can be applied to a fourth generation (4G) system; or to a fifth generation (5G) system, also known as a new radio (NR) system; or to a sixth generation (6G) system, or a seventh generation (7G) system, or other future communication systems; or can also be used in a device to device (D2D) system, a machine to machine (M2M) system, a vehicle to everything (V2X), and the like.

[0052] This application can be applied to Figure 1 The system architecture shown. Figure 1 The communication system 10 shown may include, but is not limited to: a network device 110 and a terminal device 120 . Figure 1 The number and form of the devices are used for example only and do not constitute a limitation on the embodiments of the present application. For example, multiple terminal devices may be included in actual applications.

[0053] Among them, the terminal device in the embodiment of the present application is a device with wireless transceiver function, which can be called terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal equipment, Internet of Things terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile device, wireless communication equipment, UE agent or UE device, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as wideband code division multiple access (WCDMA), long time evolution (LTE), NR, 6G or next generation wireless communication technology, etc. For example, the terminal device can be a mobile phone, a tablet computer (pad), a desktop computer, a laptop computer, an all-in-one computer, a vehicle-mounted terminal, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network, or a terminal device in a future evolved public land mobile network (PLMN), etc. In some embodiments of the present application, the terminal device may also be a device with transceiver functions, such as a chip module. The chip module may include a chip and may also include other discrete devices. The embodiments of the present application do not limit the specific technology and specific device form used by the terminal device.For the convenience of description, the terminal device in the embodiment of the present application takes UE as an example.

[0054] In the embodiment of the present application, the network device is a device that provides wireless communication functions for the terminal device. The network device can be an access network (AN) device, a satellite, and the AN device can be a radio access network (RAN) device. Among them, the access network device can support at least one wireless communication technology, such as WCDMA, LTE, NR, 6G, etc. For example, the access network device includes but is not limited to: the next generation base station (generation nodeB, gNB) in 5G, evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (node ​​B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved node B, or home node B, HNB), baseband unit (baseband unit, BBU), transmission and reception point (TRP), transmitting point (transmitting point, TP), mobile switching center, etc. The network device may also be a wireless controller, a centralized unit (CU) and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the access network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, and an access network device in future mobile communications or an access network device in a future evolved PLMN, etc. In some embodiments, the network device may also be a device that provides wireless communication functions for terminal devices, such as a chip module. For example, the chip module may include a chip and may also include other discrete devices. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. For the convenience of description, the network device in the embodiments of the present application takes gNB as an example.

[0055] Optionally, the network device may also be other devices in the core network (CN), such as access and mobility management function (AMF), user plane function (UPF), etc.; it may also be an access point (AP) in a wireless local area network (WLAN), a relay station, a communication device in a future evolved PLMN network, a communication device in a non-terrestrial network (NTN), etc.

[0056] It can be understood that the communication system described in the embodiment of the present application is to more clearly illustrate the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application. Those skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

[0057] Secondly, the relevant concepts involved in the embodiments of the present application are explained.

[0058] 1. MU-MIMO

[0059] MU-MIMO means that a gNB communicates with multiple UEs at the same time. For example, multiple UEs communicate with the gNB on the same time-frequency resources, which can improve the utilization of spatial resources and increase cell capacity.

[0060] When multiple UEs use the same time-frequency resources, the gNB can use the following MU-MIMO resource allocation methods when sending data to multiple UEs:

[0061] Mode 1: gNB sends two layers of data on the same time-frequency resource, one layer of data belongs to the target UE and the other layer of data belongs to the interfering UE. On this time-frequency resource, the data sent by gNB to the target UE occupies one logical port, and the data sent to the interfering UE occupies another logical port. The two logical ports are distinguished by DMRS. It can be understood that the DMRS sequences of the two logical ports are the same and are distinguished by TDM, FDM or OCC.

[0062] For example, see Figure 2A A MU-MIMO resource allocation method is shown. Figure 2AIn the figure, light grey blocks represent resource elements (REs) occupied by the physical downlink shared channel (PDSCH) (i.e. data) sent by the gNB; dark grey blocks represent REs occupied by the physical downlink control channel (PDCCH) sent by the gNB; slash blocks represent REs occupied by DMRS sent by the gNB to the target UE through the logical port AP1000, and cross blocks represent REs occupied by DMRS sent by the gNB to the interfering UE through the logical port AP1001. AP1000 and AP1001 are different DMRS ports in the same code division multiplexing (CDM) group.

[0063] Mode 2: gNB sends four layers of data on the same time-frequency resource, of which two layers of data belong to the target UE and the other two layers of data belong to the interfering UE. On this time-frequency resource, the two layers of data sent by gNB to the target UE each occupy one logical port, and these two logical ports belong to the same CDM group; the two layers of data sent by gNB to the interfering UE each occupy one logical port, and these two logical ports belong to another CDM group.

[0064] For example, see Figure 2A Another MU-MIMO resource allocation method is shown. Figure 2B In the figure, light grey squares indicate REs occupied by PDSCH sent by gNB; dark grey squares indicate REs occupied by PDCCH sent by gNB; slash squares indicate REs occupied by DMRS sent by gNB to target UE via logical port AP1000; cross squares indicate REs occupied by DMRS sent by gNB to target UE via logical port AP1001; black squares indicate REs occupied by DMRS sent by gNB to interfering UE via port AP1002; dotted squares indicate REs occupied by DMRS sent by gNB to interfering UE via port AP1003. AP1000 and AP1001 are different DMRS ports in the same CDM group, and AP1002 and AP1003 are different DMRS ports in another CDM group.

[0065] Mode 3: gNB sends two layers of data on the same frequency resource, one layer of data belongs to the target UE, and the other layer of data belongs to multiple interfering UEs. On this frequency resource, the data sent by gNB to the target UE occupies one logical port, and the other logical port is multiplexed by multiple users in frequency division mode. The two logical ports are distinguished by DMRS.

[0066] For example, see Figure 2C Another MU-MIMO resource allocation method is shown. Figure 2C In the figure, light gray squares indicate REs occupied by PDSCH sent by gNB; dark gray squares indicate REs occupied by PDCCH sent by gNB; slash squares indicate REs occupied by DMRS sent by gNB to target UE through logical port AP1000, and cross squares indicate REs occupied by DMRS sent by gNB to interfering UE through logical port AP1001. AP1000 and AP1001 are different DMRS ports in the same CDM group.

[0067] For example, see Figure 3 A schematic diagram of a port of a single-symbol DMRS is shown. Figure 3 In the example, CDM group 0 includes two DMRS ports, namely AP1000 and AP1001; CDM group 1 includes two DMRS ports, namely AP1002 and AP1003. The DMRS sequences of AP1000, AP1001, AP1002, and AP1003 are the same and are distinguished by OCC, and the length of OCC in the frequency domain is 2.

[0068] When the same time-frequency resource serves multiple UEs, MU-MIMO interference may occur. In order to suppress or eliminate the impact of MU-MIMO interference, the UE receiver can use an interference suppression algorithm to improve the receiving throughput or improve the demodulation performance. Interference suppression algorithms such as the MMSE-IRC algorithm. Before performing frequency domain equalization, this algorithm requires the target to perceive the interfering DMRS port and the channel response between the target UE's receiving antenna and the interfering DMRS port. In other words, the target UE needs to perform channel estimation to estimate the channel response between its receiving antenna and the interfering DMRS port. The channel response can be H in formula (1): i ,i=2,...,K.

[0069]

[0070] In formula (1), y represents the received signal; H0 represents the channel response between the DMRS port of the target UE and the gNB; H1 represents the channel response from the interfering DMRS port 1 to the target UE; H i Similarly, x represents the channel response from the interfering DMRS port i to the target UE; x0 represents the signal sent by the base station to the paired target UE; x1 represents the signal sent to the paired interfering UE on the interfering DMRS port 1, and x iSimilarly, represents the signal of the paired interfering UE on the interfering DMRS port i; n represents noise interference; z represents noise and non-domain interference; v represents all interference; K represents the number of paired UEs on the interfering port, and K is greater than or equal to 2. The paired target UE can be referred to as the target UE, and the paired interfering UE can be referred to as the interfering UE. The target UE and the interfering UE are paired UEs with each other.

[0071] 2. Joint Detection of Interference DMRS Port Power

[0072] The target UE can obtain its own resource allocation information, such as PDSCH resource location and DMRS port configuration, through DCI (or PDCCH), but cannot obtain the interfering DMRS port information and the resource allocation information of the UE on the interfering DMRS port. The target UE can detect whether there is an interfering UE on the DMRS port orthogonal to the DMRS port of the target UE by blind detection. The target UE performs the interfering DMRS port power detection in a blind estimation manner. The target UE is based on the following assumptions: the DMRS sequence of the interfering DMRS port is the same as the DMRS sequence of the DMRS port of the target UE; the DMRS resources of the interfering UE are code-divided orthogonal, frequency-divided or time-divided with the DMRS resources of the target UE.

[0073] Based on the above assumptions, the target UE can Figure 4 The process shown performs blind detection of interfering DMRS ports and may include:

[0074] 401a, signal frequency domain conversion. The received signal in the time domain is expressed as y(t), and the target UE performs a fast Fourier transform (FFT) operation on the received signal, converts the time domain signal to the frequency domain for analysis, and obtains the received signal in the frequency domain as y(f).

[0075] 402a, DMRS port power detection. The target UE can obtain the PDSCH resource information and DMRS resource information of the target UE from the DCI. The DMRS resource information may include the DMRS time-frequency resource position and the DMRS sequence. Based on the known DMRS sequence, and configuration parameters such as the DMRS port type and length, the target UE further traverses each DMRS port resource configuration that may be orthogonal to its DMRS port, and detects the power of the potential interfering DMRS port. A common method is to take out the total received signal at the time-frequency domain position corresponding to the potential interfering DMRS port, perform a correlation operation with the received signal using the known DMRS sequence to obtain the approximate signal power, or calculate the channel gain factor of the potential interfering DRMS ​​port in the frequency domain based on the known DMRS sequence, and modulo the complex channel gain factor to obtain the signal power. The DMRS port power detection is output in units of PRB, representing the power strength of several DMRSs in a PRB.

[0076] 403a, decision. Sort the DMRS port power of each potential orthogonal DMRS port on a PRB, make a decision, and screen out the interfering DMRS ports whose interference signals exceed the detection threshold.

[0077] 404a, channel estimation: Channel estimation is performed on the screened interfering DMRS ports.

[0078] 405a, multi-port joint minimum mean square error (MMSE) frequency domain equalization or RML demodulation. The target UE performs multi-port joint MMSE frequency domain equalization or RML demodulation based on the result of channel estimation.

[0079] This process is based on a single PRB, and the amount of computation is relatively large. For example, for a 100MHz bandwidth with a sub-carrier space (SCS) of 30kHz, the number of PRBs is 273, and step 3 needs to be performed 273 times. There are 12 REs in a PRB. If a PRB is affected by random noise and interference, it will cause detection errors, which will affect the results of subsequent MIMO demodulation. On the other hand, the above process has a large amount of computation, which will affect the power consumption of the UE to a certain extent.

[0080] In view of this, an embodiment of the present application provides an indication method and a communication device, which, by indicating a PRB set with the same interference power on the DMRS port of the target UE, enables the target UE to perform joint detection of the interference DMRS port power based on the PRB set, thereby improving the efficiency and reliability of the detection and reducing the amount of calculation of the target terminal device, thereby helping to improve the efficiency and reliability of channel estimation and helping to save the power consumption of the target terminal device.

[0081] In the embodiment of the present application, the target UE performs the interference DMRS port power joint detection within the indicated PRB set range under the RRC message and DCI joint auxiliary indication, or the RRC message and MAC-CE joint auxiliary indication, or the DCI independent indication, or the MAC-CE independent indication. After the interference DMRS port power joint detection, the interference DMRS port is screened out based on the result of the interference DMRS port power joint detection, and channel estimation is further performed.

[0082] The target UE can be based on Figure 4 The process shown performs joint detection of interfering DMRS port power, which may include:

[0083] 401b, signal frequency domain conversion. This step can refer to the detailed description of step 401a, which will not be repeated here.

[0084] 402b, DMRS port power detection. The target UE can obtain the PDSCH resource information and DMRS resource information of the target UE from the DCI. The DMRS resource information may include the DMRS time-frequency resource position and the DMRS sequence. Based on the known DMRS sequence, and configuration parameters such as the DMRS port type and length, the target UE further traverses each DMRS port resource configuration that may be orthogonal to its DMRS port, and detects the power of the potential interfering DMRS port. A common method is to take out the total received signal at the time-frequency domain position corresponding to the potential interfering DMRS port, perform a correlation operation with the received signal using the known DMRS sequence to obtain the approximate signal power, or calculate the channel gain factor of the potential interfering DRMS ​​port in the frequency domain based on the known DMRS sequence, and modulo the complex channel gain factor to obtain the signal power. The DMRS port power detection is averaged and output within the PRB set, representing the average power strength of several DMRS RE signals within the PRB set.

[0085] 403b, decision. Sort the DMRS port power of each potential orthogonal DMRS port on the PRB set, make a decision, and screen out the interfering DMRS ports whose interference signals exceed the detection threshold.

[0086] 404b, channel estimation: Channel estimation is performed on the screened interfering DMRS ports.

[0087] 405b, multi-port MMSE frequency domain equalization or RML demodulation: Multi-port joint MMSE frequency domain equalization or RML demodulation is performed based on the channel estimation result.

[0088] With respect to all PRBs occupied by the DMRS port of the target UE, on a MU-MIMO paired scheduling DMRS port (i.e., the interfering DMRS port), the target UE detects the interference signal power of each PRB on the port. The interference power received by the target UE on the DMRS port in PRB units is correlated within the PRB range and meets the criteria for joint power detection. A typical example is that on the interfering DMRS port, the PRBs belonging to it are allocated to the same co-schedule UE, so the base station transmits the same power on each PRB on the interfering DMRS port, and the large-scale propagation channel characteristics of the transmitted signal in the air interface are also the same, so that the receiver of the target UE can meet the above-mentioned conditions for joint port power detection.

[0089] The indication method provided in the embodiments of the present application is described in detail below.

[0090] See also Figure 5 , is a flow chart of an indication method provided in an embodiment of the present application, which may include but is not limited to the following steps:

[0091] 501, the gNB sends a control signaling to the target UE. Correspondingly, the target UE receives the control signaling from the gNB. The control signaling includes a first field.

[0092] The first field is used to indicate a PRB set. On this PRB set, the interference signal received by the target UE on any interfering DMRS port comes from the same paired scheduled UE. The interfering DMRS port can also be described as a potential interfering DMRS port, a paired scheduled DMRS port, a scheduled DMRS port, or a MU-MIMO paired scheduled DMRS port, etc.

[0093] The interfering DMRS port has the same DMRS sequence as the DMRS port of the target UE, and is distinguished by TDM, FDM or OCC. It can be understood that the interfering DMRS port and the DMRS port of the target UE belong to the same CDM group. For the convenience of description, the DMRS port of the target UE is referred to as the first DMRS port, and the interfering DMRS port is referred to as the second DMRS port. The number of the second DMRS ports is one or more, and the specific number of the second DMRS ports is determined by the DMRS port type of the target UE. Figure 4 When performing joint detection of interfering DMRS port power, it is assumed that the first DMRS port and the second DMRS port reuse the same frequency domain resources. It can be understood that the first DMRS port and the second DMRS port form a spatial channel that reuses the same frequency domain resources through precoding. The paired scheduling UE is the Co-schedule UE, which can be understood as the interfering UE. The target UE and the interfering UE are paired UEs.

[0094] The first field is used to indicate a PRB set so that the target UE performs interference DMRS port power joint detection based on the PRB set. In other words, the first field is used to indicate a PRB set for performing interference DMRS port power joint detection.

[0095] The above PRB set may be the same as the PRB occupied by the first DMRS port, or may be a subset of the PRB occupied by the first DMRS port. For example, the above PRB set is 50% or 20% of the PRB occupied by the first DMRS port.

[0096] In one implementation, the control signaling may be a DCI, and the DCI may be a DCI indicating the DMRS position to the target UE, that is, the DCI may indicate the DMRS position and may also carry the first field, which may save signaling and radio resources. The DCI may add one or two bits to represent the information indicated by the first field.

[0097] In another implementation manner, the control signaling may be a MAC-CE, in which one or two bits are added to represent the information indicated by the first field.

[0098] It can be understood that DCI is used to indicate the target UE scheduling information and the PRB set range for which the target UE can apply joint power detection when performing interference DMRS port power detection, and MAC-CE can also be used to indicate the PRB set range for which the target UE can apply joint power detection when performing interference DMRS port power detection.

[0099] Optionally, before step 501, step 500 is also included, where the gNB sends an RRC message to the target UE, where the RRC message is used to configure a PRB set candidate, where the PRB set candidate includes one or more PRB sets, where the one or more PRB sets include the PRB set indicated by the first field. The RRC message includes a candidate value of the first field. For example, the RRC message includes PDSCH configuration information, where the PDSCH configuration information includes a candidate value of the first field. Step 500 Figure 5 The dashed line indicates that step 500 is optional.

[0100] It can be understood that the gNB pre-configures at least one PRB set for the target UE, and then dynamically schedules the target UE through DCI or MAC-CE on which PRB set to perform the interference DMRS port power joint detection. In the RRC establishment process, the PRB set candidate is configured through the RRC message, so that in each TTI dynamic scheduling process, the target UE is indicated by DCI or MAC-CE based on which specific PRB set to perform the interference DMRS port power joint detection, which helps to improve the reliability of interference channel detection, improve the efficiency and reliability of channel estimation, and help save the power consumption of the target UE.

[0101] Optionally, the RRC message further indicates the starting position of some PRBs, that is, indicates the starting PRB of the PRB set for performing the interfering DMRS port power joint detection, so as to determine from which PRB to start performing the interfering DMRS port power joint detection.

[0102] Optionally, the RRC message indicates a starting PRB of a PRB set for performing interfering DMRS port power joint detection and a PRB candidate length of the PRB set.

[0103] 502. The target UE determines a PRB set in response to the first field.

[0104] The target UE determines the PRB set in response to the value of the first field. The value of the first field indicates one of the at least one candidate value configured in the RRC message.

[0105] In one implementation, for the above RRC message configuring two candidate values ​​for the first field, taking the first value and the second value as an example, when the value of the first field is the first value, it is determined that the PRB set is all PRBs occupied by the first DMRS port. That is, the second DMRS port occupies the same PRB as the first DMRS port. Then the target UE can perform joint detection of interfering DMRS port power based on the PRB occupied by the first DMRS port. When the value of the first field is the second value, steps 401a to 405a are executed.

[0106] Exemplarily, when the first value is "true" or "1", the PRB set is determined to be all PRBs occupied by the first DMRS port; when the second value is "false" or "0", steps 401a to 405a are executed.

[0107] In another implementation, for the above RRC message configuring at least two candidate values ​​for the first field, the value of the first field indicates one of the at least two candidate values. Exemplarily, taking the four candidate values ​​of "0", "1", "2" and "3" as an example, when the value of the first field is "2", it can be determined that the corresponding overlap ratio is 20%, and then the PRB set is determined to be 20% of all PRBs occupied by the first DMRS port; when the value of the first field is "1", it can be determined that the corresponding overlap ratio is 50%, and then the PRB set is determined to be 50% of all PRBs occupied by the first DMRS port; when the value of the first field is "0", it can be determined that the corresponding overlap ratio is 100%, and then the PRB set is determined to be all PRBs occupied by the first DMRS port. It can be understood that when the overlap ratio is less than 100% and is not 0, the PRB set is part of the PRBs occupied by the first DMRS port.

[0108] Optionally, the first field may only indicate one of the at least one candidate value configured in the above RRC message, and the starting position of the default part of PRBs of the target UE is the starting position of the PRBs occupied by the first DMRS port.

[0109] Optionally, the above RRC message may also indicate a starting PRB of a PRB set for performing joint detection of interference DMRS port power.

[0110] Optionally, in response to the determined PRB set, the target UE performs a joint detection of the interference DMRS port power according to the PRB set to determine the average interference power corresponding to the PRB set. Then, channel estimation can be performed based on the average interference power. For example, if the PRB set is all PRBs occupied by the first DMRS port, the target UE calculates the interference DMRS port power of each PRB on the interference DMRS port, and calculates the average value of these interference DMRS port powers, that is, the average interference power, and then performs interference DMRS port detection based on the average interference power. Compared with power detection in units of a single PRB, interference DMRS port detection based on average interference power is more efficient and more reliable. For another example, if the PRB set is the first 50% of all PRBs occupied by the first DMRS port, the target UE calculates the interference DMRS port power of each PRB in the first 50% PRBs on the interference DMRS port, and calculates the average value of these interference DMRS port powers, that is, the average interference power, and then performs channel estimation based on the average interference power. Channel estimation is performed based on the average interference power corresponding to the first 50% PRBs. Compared with power detection based on a single PRB, it is more efficient and more reliable.

[0111] The above takes the average interference power corresponding to the PRB set as an example, and the total interference power corresponding to the PRB set can also be taken as an example. For example, the PRB set is all PRBs occupied by the first DMRS port, then the target UE calculates the interference DMRS port power of each PRB on the interference DMRS port, and calculates the total value of these interference DMRS port powers, and then performs channel estimation based on the total value.

[0112] exist Figure 5 In the illustrated embodiment, the first field in the control signaling indicates the PRB set, so that the target UE can perform the interference DMRS port power joint detection based on the PRB set. Compared with performing the interference DMRS port power detection in units of a single PRB, the efficiency and reliability of the detection can be improved, and the amount of calculation of the target UE can be reduced, thereby helping to improve the efficiency and reliability of channel estimation and helping to save the power consumption of the target UE.

[0113] The following uses several examples to further illustrate the indication method provided in the embodiments of the present application.

[0114] Example 1, see Fig. 6A The process diagram shown may include the following steps:

[0115] 1.1, the gNB sends an RRC reconfiguration message to the target UE. Correspondingly, the target UE receives the RRC reconfiguration message from the gNB.

[0116] 1.2. In response to the RRC reconfiguration message, the target UE sends an RRC reconfiguration complete (i.e., RRCReconfigurationComplete) message to the gNB. Accordingly, the gNB receives the RRC reconfiguration complete message from the target UE.

[0117] The RRC reconfiguration message includes PDSCH configuration information, and the PDSCH configuration information is used to configure one or two candidate values ​​of the first field. For example, the PDSCH configuration information may be as follows:

[0118]

[0119] Among them, the "IfFullOverlapAssignmentForCoSchUe" information element can be understood as an information element used to configure the candidate value of the first field, and the candidate value can be one or two. For example, the candidate value is one, which is used to indicate that the set of PRBs with the same interference power on the DMRS port of the target UE completely overlaps or does not completely overlap with the PRBs occupied by the first DMRS port. For another example, the candidate values ​​are two, one indicating complete overlap and the other indicating incomplete overlap. Complete overlap can also be described as complete multiplexing, or being exactly the same, etc. Complete overlap can be understood as that the set of PRBs with the same interference power on the DMRS port of the target UE completely multiplexes all the PRBs occupied by the first DMRS port. "IfFullOverlapAssignmentForCoSchUe" is "true", indicating that the set of PRBs with the same interference power on the DMRS port of the target UE completely overlaps with the PRBs occupied by the first DMRS port, and then the target UE can perform interference DMRS port power joint detection based on all PRBs occupied by the first DMRS port. “IfFullOverlapAssignmentForCoSchUe” is “false”, indicating that the target UE can execute steps 401a to 405a.

[0120] Optionally, Example 1 can be understood as a configuration process, and the gNB can further dynamically indicate the PRB set through DCI or MAC-CE. That is, after the target UE sends an RRC reconfiguration completion message to the gNB, the gNB sends a DCI or MAC-CE to the target UE, and the DCI or MAC-CE includes a first field. The target UE determines the PRB set in response to the first field, and then performs interfering DMRS port power joint detection based on the PRB set.

[0121] Alternatively, the gNB does not send an RRC reconfiguration message to the target UE, but directly sends a DCI or MAC-CE to the target UE to dynamically indicate the PRB set.

[0122] For example 2, see Figure 6B The process diagram shown may include the following steps:

[0123] 2.1, gNB sends an RRC reconfiguration message to the target UE. Correspondingly, the target UE receives the RRC reconfiguration message from the gNB.

[0124] 2.2, the target UE sends an RRC reconfiguration complete message to the gNB in ​​response to the RRC reconfiguration message. Correspondingly, the gNB receives the RRC reconfiguration complete message from the target UE.

[0125] 2.3, the gNB sends DCI to the target UE. Correspondingly, the target UE receives the DCI from the gNB. The DCI includes the first field. That is, the DCI indicates the value of the first field.

[0126] Wherein, the RRC reconfiguration signaling includes PDSCH configuration information, and the PDSCH configuration information is used to configure at least two candidate values ​​of the first field. For example, the PDSCH configuration information may be as follows:

[0127]

[0128]

[0129] Among them, the "OverlapRatioListofAssignmentForOneCoSchUe" information element is used to configure at least two candidate values ​​of the first field, and there is a corresponding relationship between one candidate value and one overlap ratio, and the overlap ratio refers to the ratio of the PRB set with the same interference power on the DMRS port of the target UE in the PRB occupied by the first DMRS port, such as 100%, 50%, 20%, etc. Optionally, the information element is used to configure the length of the PRB set with the same interference power on the DMRS port of the target UE in the PRB occupied by the first DMRS port.

[0130] Optionally, the PDSCH configuration information may further include an information element, which is used to configure the starting position of the PRB set. Alternatively, the starting position of the default PRB set is the starting position of the PRB occupied by the first DMRS port.

[0131] The DCI includes a first field, which is used to indicate the proportion of the PRB set in the PRBs occupied by the first DMRS port in each TTI scheduling. For example, candidate values ​​of the first field can be shown in Table 1 below.

[0132] Table 1

[0133]

[0134] It can be understood that Example 2 configures multiple overlapping ratios through RRC reconfiguration signaling, that is, configures multiple PRB set candidates, and DCI dynamically indicates the actual overlapping ratio, that is, indicates the actual PRB set.

[0135] For example 3, see Figure 6C The process diagram shown may include the following steps:

[0136] 3.1, the gNB sends a first MAC-CE to the target UE. Correspondingly, the target UE receives the first MAC-CE from the gNB. The first MAC-CE includes a first field.

[0137] 3.2. The target UE determines the PRB set in response to the first field.

[0138] 3.3, the target UE performs joint detection of the interfering DMRS port power based on the PRB set.

[0139] 3.4, the gNB sends a second MAC-CE to the target UE. Correspondingly, the target UE receives the second MAC-CE from the gNB. The second MAC-CE instructs the target UE to stop interfering with the DMRS port power joint detection.

[0140] It can be understood that the first MAC-CE includes the first field, which not only indicates the PRB set, but also indicates by default that the target UE starts to perform interfering DMRS port power joint detection. The second MAC-CE is used to instruct the UE to stop interfering DMRS port power joint detection.

[0141] Optionally, the gNB may not send the second MAC-CE to the target UE. When the target UE performs the interfering DMRS port power joint detection, it starts a timer, and stops the interfering DMRS port power joint detection when the timer times out.

[0142] See also Fig. 7A , Fig. 7A 70A is a schematic diagram of a communication device provided in an embodiment of the present application. The communication device 70A may be a target terminal device, or may be a device matching the target terminal device. Fig. 7A As shown, the communication device 70A includes a receiving unit 702 and a processing unit 701 .

[0143] In one implementation, the receiving unit 702 is configured to receive control signaling from a network device, where the control signaling includes a first field;

[0144] The processing unit 701 is used to determine a PRB set in response to the first field; in the PRB set, the interference signal received by the target E on any interfering DMRS port comes from the same paired scheduling terminal device.

[0145] Optionally, the above-mentioned PRB set is all PRBs occupied by the target terminal device; or, the above-mentioned PRB set is part of the PRBs among all PRBs occupied by the target terminal device.

[0146] Optionally, the starting PRB of the above-mentioned part of PRBs is the starting PRB in the PRBs occupied by the target terminal device.

[0147] Optionally, the receiving unit 702 is further used to receive an RRC message from a network device, where the RRC message is used to configure PRB set candidates, and the PRB set candidates include the above-mentioned PRB set.

[0148] Optionally, the RRC message is also used to indicate the starting PRB of the above PRB set.

[0149] Optionally, the above control signaling is DCI or MAC-CE.

[0150] See also Figure 7B , Figure 7B 70B is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. The communication device 70B may be a network device or a device matching a network device. Figure 7B As shown, the communication device 70B includes a sending unit 703 and, optionally, a processing unit 704.

[0151] In one implementation, the sending unit 703 is used to send a first field to the terminal device, where the first field is used to indicate a PRB set for performing DMRS port power joint detection.

[0152] Optionally, the above-mentioned PRB set is all PRBs occupied by the target terminal device; or, the above-mentioned PRB set is part of the PRBs among all PRBs occupied by the target terminal device.

[0153] Optionally, the starting PRB of the above-mentioned part of PRBs is the starting PRB in the PRBs occupied by the target terminal device.

[0154] Optionally, the sending unit 703 is further used to send an RRC message to the target terminal device, where the RRC message is used to configure PRB set candidates, and the PRB set candidates include one or more PRB sets.

[0155] Optionally, the RRC message is also used to indicate the starting PRB of the above PRB set.

[0156] Optionally, the above control signaling is DCI or MAC-CE.

[0157] See also Figure 8 , Figure 8 80 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. The communication device 80 may be a terminal device or a device matching the terminal device. Optionally, the communication device may further include a memory 803. The transceiver 801, the processor 802, and the memory 803 may be connected via a bus 804 or other means. Figure 8The connections between other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 8 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0158] The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The specific connection medium between the above-mentioned transceiver 801, processor 802, and memory 803 is not limited in the embodiment of the present application.

[0159] The memory 803 may include a read-only memory and a random access memory, and provides instructions and data to the processor 802. A portion of the memory 803 may also include a nonvolatile random access memory.

[0160] The processor 802 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor, and optionally, the processor 802 may also be any conventional processor, etc.

[0161] In an optional implementation, the memory 803 is used to store program instructions; the processor 802 is used to call the program instructions stored in the memory 803 to execute Figure 5 The steps performed by the target UE or gNB in ​​the corresponding embodiment.

[0162] In the embodiment of the present application, the method provided in the embodiment of the present application can be implemented by running a computer program (including program code) capable of executing each step involved in the above method on a general computing device such as a computer including a CPU, a random access memory (RAM), a read-only memory (ROM) and other processing elements and storage elements. The computer program can be recorded on a computer-readable recording medium, for example, and loaded into the above computing device through the computer-readable recording medium and run therein.

[0163] Based on the same inventive concept, the communication device 80 provided in the embodiment of the present application solves the problem and has the same beneficial effects as the present application. Figure 5 The principles and beneficial effects of solving the problems in the illustrated embodiments are similar, and reference may be made to the principles and beneficial effects of the implementation of the method, which will not be repeated here for the sake of brevity.

[0164] The aforementioned communication device may be, for example, a chip or a chip module.

[0165] An embodiment of the present application also provides a chip, which includes a processor, and the processor can execute the relevant steps of the terminal device in the aforementioned method embodiment.

[0166] In one implementation, the chip is used to receive control signaling from a network device, the control signaling includes a first field; in response to the first field, a PRB set is determined; in the PRB set, the interference signal received by the target E on any interfering DMRS port originates from the same paired scheduling terminal device.

[0167] Optionally, the above-mentioned PRB set is all PRBs occupied by the target terminal device; or, the above-mentioned PRB set is part of the PRBs among all PRBs occupied by the target terminal device.

[0168] Optionally, the starting PRB of the above-mentioned part of PRBs is the starting PRB in the PRBs occupied by the target terminal device.

[0169] Optionally, the chip is also used to receive an RRC message from a network device, where the RRC message is used to configure PRB set candidates, and the PRB set candidates include the above-mentioned PRB set.

[0170] Optionally, the RRC message is also used to indicate the starting PRB of the above PRB set.

[0171] Optionally, the above control signaling is DCI or MAC-CE.

[0172] In one implementation, the chip is used to send a first field to a terminal device, where the first field is used to indicate a PRB set for performing DMRS port power joint detection.

[0173] Optionally, the above-mentioned PRB set is all PRBs occupied by the target terminal device; or, the above-mentioned PRB set is part of the PRBs among all PRBs occupied by the target terminal device.

[0174] Optionally, the starting PRB of the above-mentioned part of PRBs is the starting PRB in the PRBs occupied by the target terminal device.

[0175] Optionally, the chip is also used to send an RRC message to the target terminal device, where the RRC message is used to configure PRB set candidates, and the PRB set candidates include the above-mentioned PRB set.

[0176] Optionally, the RRC message is also used to indicate the starting PRB of the above PRB set.

[0177] Optionally, the above control signaling is DCI or MAC-CE.

[0178] See also Fig. 9 , Fig. 9 90 is a schematic diagram of a chip module provided in an embodiment of the present application. The chip module 90 can execute the relevant steps of the terminal device in the aforementioned method embodiment, and the chip module 90 includes: a communication interface 901 and a chip 902 .

[0179] The communication interface is used for internal communication within the chip module, or for the chip module to communicate with an external device. The communication interface can also be described as a communication module. The chip 902 is used to implement the function of the target terminal device in the embodiment of the present application.

[0180] For example, chip 902 is used to receive control signaling from a network device, which includes a first field; in response to the first field, a PRB set is determined; in the PRB set, the interference signal received by the target UE on any interfering DMRS port originates from the same paired scheduling terminal device.

[0181] Chip 902 is used to implement the functions of the network device in the embodiment of the present application.

[0182] For example, chip 902 is used to send a first field to a terminal device, where the first field is used to indicate a PRB set for performing DMRS port power joint detection.

[0183] Optionally, the chip module 90 may further include a storage module 903 and a power module 904. The storage module 903 is used to store data and instructions. The power module 904 is used to provide power to the chip module.

[0184] For each device or product applied to or integrated in the chip module, each module contained therein can be implemented by hardware such as circuits, and different modules can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components. Alternatively, at least some of the modules can be implemented by software programs that run on a processor integrated inside the chip module, and the remaining (if any) modules can be implemented by hardware such as circuits.

[0185] An embodiment of the present application also provides a computer-readable storage medium, in which one or more instructions are stored, and the one or more instructions are suitable for being loaded by a processor and executing the method provided by the above method embodiment.

[0186] The embodiment of the present application also provides a computer program product including a computer program or instructions. When the computer program or instructions are executed on a computer, the computer executes the method provided by the above method embodiment.

[0187] It should be noted that, for the above-mentioned various embodiments, for the sake of simple description, they are all expressed as a series of action combinations. Those skilled in the art should be aware that the present application is not limited by the described order of actions, because some steps in the embodiments of the present application can be performed in other orders or simultaneously. In addition, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions, steps, modules or units involved are not necessarily required by the embodiments of the present application.

[0188] In the above embodiments, the embodiments of the present application have different focuses on the description of each embodiment. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0189] The steps of the method or algorithm described in the embodiments of the present application can be implemented in a hardware manner, or can be implemented by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (erasable programmable ROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), registers, hard disks, mobile hard disks, read-only compact disks (CD-ROMs) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a terminal device or a management device. Of course, the processor and the storage medium can also be present in a terminal device or a management device as discrete components.

[0190] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiments of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server, or data center to another website site, computer, server, or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. 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 includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0191] Regarding the various modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, or hardware modules / units, or they can be partially software modules / units and partially hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units included therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules / units included therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units can be implemented in the form of hardware such as circuits. The element can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0192] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation method of the embodiments of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A method for indicating, characterized in that: include: receiving control signaling from a network device, wherein the control signaling includes a first field; In response to the first field, determining a PRB set; On the PRB set, the interference signal received by the target terminal device on any interfering DRMS ​​port originates from the same paired scheduling terminal device.

2. The method according to claim 1, characterized in that The PRB set is all PRBs occupied by the target terminal device; or, the PRB set is part of the PRBs among all PRBs occupied by the target terminal device.

3. The method according to claim 2, characterized in that The starting PRB of the part of PRBs is the starting PRB in the PRBs occupied by the target terminal device.

4. The method according to any one of claims 1 to 3, characterized in that: Before receiving the control signaling from the network device, it also includes: A radio resource control message is received from the network device, where the radio resource control message is used to configure PRB set candidates, and the PRB candidate set includes the PRB set.

5. The method according to claim 4, characterized in that The radio resource control message is also used to indicate a starting PRB of the PRB set.

6. The method according to any one of claims 1 to 5, characterized in that: The control signaling is downlink control information or media access control-control signaling.

7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: Perform interfering DMRS port power joint detection according to the PRB set to determine the average interference power corresponding to the PRB set.

8. A method of indicating, characterized in that: The method comprises: A control signaling is sent to a target terminal device, where the control signaling includes a first field, where the first field is used to indicate a PRB set for performing DMRS port power joint detection.

9. The method according to claim 8, characterized in that The PRB set is all PRBs occupied by the target terminal device; or, the PRB set is part of the PRBs among all PRBs occupied by the target terminal device.

10. The method according to claim 9, characterized in that The starting PRB of the part of PRBs is the starting PRB in the PRBs occupied by the target terminal device.

11. The method according to any one of claims 8 to 10, characterized in that: Before sending the control signaling to the target terminal device, it also includes: A wireless resource control message is sent to the target terminal device, where the wireless resource control message is used to configure PRB set candidates, and the PRB set candidates include the one or more PRB set options.

12. The method according to claim 11, characterized in that The radio resource control message is also used to indicate a starting PRB of the PRB set.

13. The method according to any one of claims 8 to 12, characterized in that: The control signaling is downlink control information or media access control-control signaling.

14. A communication device, characterized in that: The method comprises a unit for implementing the method according to any one of claims 1 to 7, or comprises a unit for implementing the method according to any one of claims 8 to 13.

15. A communication device comprising a processor, a memory and a computer program or instruction stored in the memory, characterized in that: The processor executes the computer program or instructions to implement the steps of the method in any one of claims 1 to 7; or, implements the steps of the method in any one of claims 8 to 13.

16. A chip, comprising a processor, characterized in that: The processor executes the steps of the method according to any one of claims 1 to 7, or executes the steps of the method according to any one of claims 8 to 13.

17. A chip module, comprising a communication interface and a chip, characterized in that: The chip includes a processor, and the processor executes the steps of the method described in any one of claims 1 to 7, or executes the steps of the method described in any one of claims 8 to 13.

18. A computer-readable storage medium, characterized in that: It stores a computer program or instruction, which, when executed, implements the steps of the method described in any one of claims 1 to 7, or implements the steps of the method described in any one of claims 8 to 13.

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