Communication method and device

Abstract

The communication method and device provided by the embodiment of the invention are used for improving the communication performance of a receiver adopting an antenna port splitting architecture. The method comprises: receiving first information, the first information being used for indicating at least one reference signal resource, the at least one reference signal resource corresponding to at least two parts of resources, the terminal device comprising at least two parts of antenna ports, the first part of resources of the at least one reference signal resource corresponding to the first part of antenna ports of the terminal device. And sending the reference signal on the first part of resources. According to the invention, the reference signal resource is associated with a part of antenna ports which perform signal receiving and processing independently, so that the channel state information of the channel corresponding to the part of antenna ports can be obtained according to the corresponding reference signal resource; therefore, the channels corresponding to the part of antenna ports can be pre-coded according to the channel state information of the channels corresponding to the part of antenna ports.

Description

Technical Field

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

[0002] Fifth-generation (5G) communication systems place higher demands on system capacity and spectral efficiency. In 5G systems, massively multi-input multiple-output (MIMO) technology plays a crucial role in improving spectral efficiency. Based on market demands, the peak transmission speed of downlink links needs to be increased to 1.6 Gbps. To meet these new market requirements, receivers with multiple receiving antennas, such as 8R receivers, can be used in downlink transmission. However, for high-stream transmissions (e.g., more than four streams), implementing receivers with multiple receiving antennas is challenging and computationally complex. Summary of the Invention

[0003] This application provides a communication method and apparatus to improve the communication performance of a receiver employing an antenna port splitting architecture.

[0004] Firstly, a communication method is provided. The execution subject of the method may be a terminal device or a chip, chip system, or circuit located in the terminal device. The method can be implemented through the following steps: receiving first information, the first information being used to indicate at least one reference signal resource, the at least one reference signal resource corresponding to at least two parts of resources, the terminal device including at least two parts of antenna ports, wherein a first part of the at least two parts of resources corresponds to a first part of the antenna ports in the at least two parts of antenna ports; and transmitting a reference signal on the first part of resources.

[0005] This application splits the antenna ports of a terminal device into multiple parts, allowing some antenna ports to receive and process signals independently, thus reducing the implementation difficulty and computational complexity of terminal devices with multiple receiving antennas. Furthermore, by associating reference signal resources with the individual antenna ports responsible for signal reception and processing, the network device and terminal device can obtain the channel state information of the channel corresponding to that antenna port based on the corresponding reference signal resources. This allows for precoding of the channel corresponding to that antenna port based on the channel state information, thereby improving communication performance.

[0006] In one possible design, the second part of the resources in at least two parts corresponds to the second part of the antenna ports in at least two parts, where the second part of the antenna ports are the antenna ports of the terminal device other than the first part of the antenna ports. This method divides the antenna ports of the terminal device into two parts, each corresponding to a portion of the resources, thereby allowing the channel state information of the corresponding portion of the antenna ports to be obtained based on the corresponding resources.

[0007] In one possible design, the first portion of the antenna ports corresponds to the first portion of the codewords of the downlink shared channel, and / or, the first portion of resources corresponds to the first portion of the codewords of the downlink shared channel. This design allows certain antenna ports of the terminal device to receive portions of the codewords of the downlink shared channel independently.

[0008] In one possible design, the second portion of at least two antenna ports corresponds to the second portion of the codeword in the downlink shared channel, and / or, the second portion of at least two resources corresponds to the second portion of the codeword in the downlink shared channel. This method divides the antenna ports of the terminal device into two parts, each corresponding to a portion of the codeword, allowing each part of the antenna port to receive its corresponding codeword.

[0009] In one possible design, if the downlink shared channel corresponds to a codeword, the codeword corresponds to a first portion of resources and / or a first portion of antenna ports. In another possible design, if the downlink shared channel corresponds to a codeword, the codeword corresponds to both a first portion of resources and a second portion of resources, and / or, the codeword corresponds to both a first portion of antenna ports and a second portion of antenna ports. The above method can further improve communication performance by repeatedly receiving the codeword.

[0010] In one possible design, any portion of the resources includes one or more reference signal resources from at least one reference signal resource.

[0011] In one possible design, at least one reference signal resource corresponds to at least two resource groups, including: at least one reference signal resource is divided into multiple reference signal resource groups. A first portion of the at least two resource groups corresponds to a first portion of the at least two antenna ports, including: a first reference signal resource group among the multiple reference signal resource groups corresponds to a first portion of the antenna ports.

[0012] In one possible design, a reference signal resource includes one or more reference signal ports, and any portion of the resource includes a portion of the reference signal ports corresponding to at least one reference signal resource.

[0013] In one possible design, at least one reference signal resource corresponds to at least two parts of resources, including: the reference signal ports included in at least one reference signal resource are divided into multiple reference signal port groups; a first part of the resources in the at least two parts of resources corresponds to a first part of the antenna ports in the at least two parts of antenna ports, including: a first reference signal port group in the multiple reference signal port groups corresponds to a first part of the antenna ports.

[0014] In one possible design, a group of reference signal ports includes all reference signal ports corresponding to one or more of the at least one reference signal resource.

[0015] In one possible design, a group of reference signal ports includes a subset of reference signal ports corresponding to one or more of the at least one reference signal resource.

[0016] In one possible design, a group of reference signal ports includes all reference signal ports corresponding to one or more reference signal resources among the at least one reference signal resource, and a subset of reference signal ports corresponding to one or more reference signal resources.

[0017] A reference signal port group includes all or part of the reference signal ports corresponding to one or more reference signal resources in at least one reference signal resource.

[0018] In one possible design, at least one reference signal resource is eight reference signal resources, wherein one reference signal resource includes one reference signal port; a first part of the resources includes the reference signal ports corresponding to four of the eight reference signal resources; and a second part of the resources includes the reference signal ports corresponding to the remaining four of the eight reference signal resources.

[0019] In one possible design, at least one reference signal resource is a single reference signal resource, wherein a single reference signal resource includes eight reference signal ports; a first portion of the resource includes four of the eight reference signal ports; and a second portion of the resource includes the remaining four of the eight reference signal ports.

[0020] In one possible design, at least one reference signal resource is three reference signal resources, wherein one reference signal resource includes two reference signal ports; the first part of the resources includes two reference signal ports of the first reference signal resource and one reference signal port of the second reference signal resource; the second part of the resources includes another reference signal port of the second reference signal resource and two reference signal ports of the third reference signal resource.

[0021] In one possible design, at least one reference signal resource is four reference signal resources, wherein one reference signal resource includes two reference signal ports; a first part of the resources includes two of the four reference signal resources; and a second part of the resources includes the remaining two of the four reference signal resources.

[0022] In one possible design, at least one reference signal resource is two reference signal resources, wherein one reference signal resource includes four reference signal ports; a first part of the resource includes one of the two reference signal resources; and a second part of the resource includes the other of the two reference signal resources.

[0023] In one possible design, at least one reference signal resource is six reference signal resources, wherein one reference signal resource includes one reference signal port; a first part of the resources includes three of the six reference signal resources; and a second part of the resources includes the remaining three of the six reference signal resources.

[0024] In one possible design, at least one portion of the reference signal resources corresponds to a first portion of the antenna port of the terminal device, including: the antenna port of the terminal device is divided into multiple antenna port groups, the first portion of the antenna port is the first antenna port group among the multiple antenna port groups, and the first portion of the resources corresponds to the first antenna port group.

[0025] In one possible design, the correspondence between the first part of the resources and the first part of the antenna ports is predefined.

[0026] In one possible design, the correspondence between the first part of resources and the first part of antenna ports is configured by the network device through wireless resource control parameters.

[0027] In one possible design, the correspondence between the first part of the resources and the partial codewords is configured by the network device through downlink control information, and / or, the correspondence between the first part of the antenna ports and the partial codewords is configured by the network device through downlink control information.

[0028] In one possible design, the method further includes: determining at least two portions of antenna ports based on a channel state information reference signal; and transmitting second information to indicate the at least two portions of antenna ports. This approach can improve the flexibility of antenna port grouping.

[0029] In one possible design, the method further includes receiving third information, which is used to indicate at least two portions of the antenna ports.

[0030] In one possible design, the first portion of the antenna ports corresponds to a first radio frequency integrated circuit, and the second portion of the antenna ports corresponds to a second radio frequency integrated circuit. This design reduces the implementation difficulty and computational complexity of terminal devices with multiple antenna ports.

[0031] In one possible design, the first part of the antenna port corresponds to the first part of the port in the first radio frequency integrated circuit and the second part of the port in the second radio frequency integrated circuit. The first part of the antenna port also corresponds to the ports in the first radio frequency integrated circuit other than the first part of the port and the ports in the second radio frequency integrated circuit other than the second part of the port.

[0032] The ports of the first radio frequency integrated circuit correspond to the same comb teeth, the ports of the second radio frequency integrated circuit correspond to the same comb teeth, the first part of the ports includes at least one port of the first radio frequency integrated circuit with the largest / smallest cyclic shift, and the second part of the ports includes at least one port of the second radio frequency integrated circuit with the largest / smallest cyclic shift.

[0033] Alternatively, the ports of the first radio frequency integrated circuit correspond to multiple comb teeth, and the ports of the second radio frequency integrated circuit correspond to multiple comb teeth. The first part of the ports are the ports of the first radio frequency integrated circuit corresponding to the first comb teeth, and the second part of the ports are the ports of the second radio frequency integrated circuit corresponding to the first comb teeth.

[0034] Alternatively, the first portion of the ports includes at least one port with the largest / smallest index among the ports of the first RF integrated circuit, and the second portion of the ports includes at least one port with the largest / smallest index among the ports of the second RF integrated circuit.

[0035] The above design can reduce the implementation difficulty and computational complexity of terminal devices with multiple antenna ports.

[0036] In one possible design, the reference signal resource is a sounding reference signal (SRS) resource.

[0037] In one possible design, the reference signal resource is a demodulation reference signal (DMRS) resource.

[0038] In one possible design, a reference signal resource includes one or more DMRS code division multiplexing (CDM) groups, and any portion of the resource includes a portion of the DMRS CDM group in at least one of the DMRS CDM groups included in the reference signal resource.

[0039] In one possible design, the method further includes: reporting fourth information, the fourth information being used to indicate that the terminal device includes at least two antenna ports, and / or, the fourth information being used to indicate that the at least one reference signal resource corresponds to at least two resources;

[0040] In one possible design, the method further includes: receiving fifth information, the fifth information indicating that the terminal device includes at least two antenna ports, and / or, the fourth information indicating that the at least one reference signal resource corresponds to at least two resources.

[0041] Secondly, a communication method is provided. The execution subject of this method can be a network device or a chip, chip system, or circuit located in the network device. The network device supports receiving uplink signals and transmitting downlink signals. This method can be implemented through the following steps: transmitting first information, the first information indicating at least one reference signal resource, the at least one reference signal resource corresponding to at least two parts of resources, a terminal device including at least two parts of antenna ports, wherein a first part of the at least two parts of resources corresponds to a first part of the antenna ports in the at least two parts of antenna ports; and receiving a reference signal on the first part of the resources.

[0042] This application splits the antenna ports of a terminal device into multiple parts, allowing some antenna ports to receive and process signals independently, thus reducing the implementation difficulty and computational complexity of terminal devices with multiple receiving antennas. Furthermore, by associating reference signal resources with the individual antenna ports responsible for signal reception and processing, the network device and terminal device can obtain the channel state information of the channel corresponding to that antenna port based on the corresponding reference signal resources. This allows for precoding of the channel corresponding to that antenna port based on the channel state information, thereby improving communication performance.

[0043] In one possible design, the second part of the at least two resource portions corresponds to the second part of the at least two antenna ports, where the second part of the antenna ports are all antenna ports of the terminal device except for the first part of the antenna ports. This method divides the antenna ports of the terminal device into two parts, each corresponding to a portion of the resource, thus allowing the acquisition of the corresponding portion of the antenna ports based on the corresponding resource.

[0044] In one possible design, the first portion of the antenna ports corresponds to the first portion of the codewords of the downlink shared channel, and / or, the first portion of resources corresponds to the first portion of the codewords of the downlink shared channel. This design allows certain antenna ports of the terminal device to receive portions of the codewords of the downlink shared channel independently.

[0045] In one possible design, the second portion of at least two antenna ports corresponds to the second portion of the codeword in the downlink shared channel, and / or, the second portion of at least two resources corresponds to the second portion of the codeword in the downlink shared channel. This method divides the antenna ports of the terminal device into two parts, each corresponding to a portion of the codeword, allowing each part of the antenna port to receive its corresponding codeword.

[0046] In one possible design, if the downlink shared channel corresponds to a codeword, the codeword corresponds to a first portion of resources and / or a first portion of antenna ports. In another possible design, if the downlink shared channel corresponds to a codeword, the codeword corresponds to both a first portion of resources and a second portion of resources, and / or, the codeword corresponds to both a first portion of antenna ports and a second portion of antenna ports. The above method can further improve communication performance by repeatedly receiving the codeword.

[0047] In one possible design, any portion of the resources includes one or more reference signal resources from at least one reference signal resource.

[0048] In one possible design, at least one reference signal resource corresponds to at least two resource groups, including: at least one reference signal resource is divided into multiple reference signal resource groups. A first portion of the at least two resource groups corresponds to a first portion of the at least two antenna ports, including: a first reference signal resource group among the multiple reference signal resource groups corresponds to a first portion of the antenna ports.

[0049] In one possible design, a reference signal resource includes one or more reference signal ports, and any portion of the resource includes a portion of the reference signal ports corresponding to at least one reference signal resource.

[0050] In one possible design, at least one reference signal resource corresponds to at least two parts of resources, including: the reference signal ports included in at least one reference signal resource are divided into multiple reference signal port groups; a first part of the resources in the at least two parts of resources corresponds to a first part of the antenna ports in the at least two parts of antenna ports, including: a first reference signal port group in the multiple reference signal port groups corresponds to a first part of the antenna ports.

[0051] In one possible design, a group of reference signal ports includes all reference signal ports corresponding to one or more of the at least one reference signal resource.

[0052] In one possible design, a group of reference signal ports includes a subset of reference signal ports corresponding to one or more of the at least one reference signal resource.

[0053] In one possible design, a group of reference signal ports includes all reference signal ports corresponding to one or more reference signal resources among the at least one reference signal resource, and a subset of reference signal ports corresponding to one or more reference signal resources.

[0054] In one possible design, at least one reference signal resource is eight reference signal resources, wherein one reference signal resource includes one reference signal port; a first part of the resources includes the reference signal ports corresponding to four of the eight reference signal resources; and a second part of the resources includes the reference signal ports corresponding to the remaining four of the eight reference signal resources.

[0055] In one possible design, at least one reference signal resource is a single reference signal resource, wherein a single reference signal resource includes eight reference signal ports; a first portion of the resource includes four of the eight reference signal ports; and a second portion of the resource includes the remaining four of the eight reference signal ports.

[0056] In one possible design, at least one reference signal resource is three reference signal resources, wherein one reference signal resource includes two reference signal ports; the first part of the resources includes two reference signal ports of the first reference signal resource and one reference signal port of the second reference signal resource; the second part of the resources includes another reference signal port of the second reference signal resource and two reference signal ports of the third reference signal resource.

[0057] In one possible design, at least one reference signal resource is four reference signal resources, wherein one reference signal resource includes two reference signal ports; a first part of the resources includes two of the four reference signal resources; and a second part of the resources includes the remaining two of the four reference signal resources.

[0058] In one possible design, at least one reference signal resource is two reference signal resources, wherein one reference signal resource includes four reference signal ports; a first part of the resource includes one of the two reference signal resources; and a second part of the resource includes the other of the two reference signal resources.

[0059] In one possible design, at least one reference signal resource is six reference signal resources, wherein one reference signal resource includes one reference signal port; a first part of the resources includes three of the six reference signal resources; and a second part of the resources includes the remaining three of the six reference signal resources.

[0060] In one possible design, at least one portion of the reference signal resources corresponds to a first portion of the antenna port of the terminal device, including: the antenna port of the terminal device is divided into multiple antenna port groups, the first portion of the antenna port is the first antenna port group among the multiple antenna port groups, and the first portion of the resources corresponds to the first antenna port group.

[0061] In one possible design, the correspondence between the first part of the resources and the first part of the antenna ports is predefined.

[0062] In one possible design, the correspondence between the first part of resources and the first part of antenna ports is configured by the network device through wireless resource control parameters.

[0063] In one possible design, the correspondence between the first part of the resources and the partial codewords is configured by the network device through downlink control information, and / or, the correspondence between the first part of the antenna ports and the partial codewords is configured by the network device through downlink control information.

[0064] In one possible design, a second piece of information is received, which is used to indicate at least two portions of the antenna ports.

[0065] In one possible design, at least two portions of antenna ports are determined based on at least one reference signal resource; third information is transmitted to indicate these at least two portions of antenna ports. This approach can improve the flexibility of antenna port grouping.

[0066] In one possible design, the first portion of the antenna ports corresponds to a first radio frequency integrated circuit, and the second portion of the antenna ports corresponds to a second radio frequency integrated circuit. This design reduces the implementation difficulty and computational complexity of terminal devices with multiple antenna ports.

[0067] In one possible design, the first part of the antenna port corresponds to the first part of the port in the first radio frequency integrated circuit and the second part of the port in the second radio frequency integrated circuit. The first part of the antenna port also corresponds to the ports in the first radio frequency integrated circuit other than the first part of the port and the ports in the second radio frequency integrated circuit other than the second part of the port.

[0068] The ports of the first radio frequency integrated circuit correspond to the same comb teeth, the ports of the second radio frequency integrated circuit correspond to the same comb teeth, the first part of the ports includes at least one port of the first radio frequency integrated circuit with the largest / smallest cyclic shift, and the second part of the ports includes at least one port of the second radio frequency integrated circuit with the largest / smallest cyclic shift.

[0069] Alternatively, the ports of the first radio frequency integrated circuit correspond to multiple comb teeth, and the ports of the second radio frequency integrated circuit correspond to multiple comb teeth. The first part of the ports are the ports of the first radio frequency integrated circuit corresponding to the first comb teeth, and the second part of the ports are the ports of the second radio frequency integrated circuit corresponding to the first comb teeth.

[0070] Alternatively, the first portion of the ports includes at least one port with the largest / smallest index among the ports of the first RF integrated circuit, and the second portion of the ports includes at least one port with the largest / smallest index among the ports of the second RF integrated circuit.

[0071] The above design can reduce the implementation difficulty and computational complexity of terminal devices with multiple antenna ports.

[0072] In one possible design, the reference signal resource is an SRS resource.

[0073] In one possible design, the reference signal resource is the DMRS resource.

[0074] In one possible design, a reference signal resource includes one or more DMRS CDM groups, and any portion of the resource includes a portion of the DMRS CDM groups included in at least one reference signal resource.

[0075] In one possible design, the method further includes: receiving fourth information, the fourth information being used to indicate that the terminal device includes at least two portions of antenna ports, and / or, the fourth information being used to indicate that the at least one reference signal resource corresponds to at least two portions of resources;

[0076] In one possible design, the method further includes: sending fifth information, the fifth information being used to indicate that the terminal device includes at least two portions of antenna ports, and / or, the fourth information being used to indicate that the at least one reference signal resource corresponds to at least two portions of resources.

[0077] Thirdly, a communication method is provided. The execution entity of this method can be a terminal device or a chip, chip system, or circuit located within the terminal device. This method can be implemented through the following steps: receiving first information, the first information indicating at least one reference signal resource, said at least one reference signal resource being used for antenna switching of xT6R or xT8R. Wherein, the at least one reference signal resource supports the following fixed SRS port groups (SRS ports are arranged in ascending order according to SRS resource ID and port number in each SRS resource): SRS port group 0 corresponding to the first codeword includes a first portion of the SRS ports (e.g., half of the SRS ports); SRS port group 1 corresponding to the second codeword includes a second portion of the SRS ports (e.g., the other half of the SRS ports). Reference signals are transmitted through SRS port group 0 and SRS port group 1.

[0078] In one possible design, the UE follows the above grouping assumptions for calculating the Channel Quality Indicator (CQI). For example, the first CQI is calculated for SRS port group 0 corresponding to the first codeword, and the second CQI is calculated for SRS port group 1 corresponding to the second codeword.

[0079] In one possible design, SRS port group 0 and SRS port group 1 can be associated with different antenna ports.

[0080] Fourthly, this application also provides a communication device, which is a terminal device or a chip within a terminal device. This communication device has the function of implementing any of the methods provided in the first or third aspect above. The communication device can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-described functions.

[0081] In one possible design, the communication device includes a processor configured to support the communication device in performing corresponding functions of the terminal device described above. The communication device may also include a memory coupled to the processor, which stores necessary program instructions and data for the communication device. Optionally, the communication device further includes interface circuitry for supporting communication between the communication device and devices such as network devices, for example, the transmission and reception of data or signals. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface.

[0082] In one possible design, the communication device includes corresponding functional modules, each used to implement the steps in the above method. The functions can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

[0083] In one possible design, the communication device includes a processing unit (or processing unit) and a communication unit (or communication unit) in its structure. These units can perform the corresponding functions in the above method examples, as described in the method provided in the first aspect, and will not be repeated here.

[0084] Fifthly, this application also provides a communication device, which is a network device or a chip within a network device. This communication device has the function of implementing any of the methods provided in the second aspect above. The communication device can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above-described functions.

[0085] In one possible design, the communication device includes a processor configured to support the communication device in performing corresponding functions of the network device described above. The communication device may also include a memory coupled to the processor, which stores necessary program instructions and data for the communication device. Optionally, the communication device further includes interface circuitry for supporting communication between the communication device and devices such as terminal devices, for example, the transmission and reception of data or signals. Exemplarily, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface.

[0086] In one possible design, the communication device includes corresponding functional modules, each used to implement the steps in the above method. The functions can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the functions described above.

[0087] In one possible design, the communication device includes a processing unit (or processing unit) and a communication unit (or communication unit) in its structure. These units can perform the corresponding functions in the above method examples, as described in the method provided in the second aspect, and will not be repeated here.

[0088] In a sixth aspect, a communication device is provided, including a processor and an interface circuit. The interface circuit is configured to receive signals from other communication devices outside the communication device and transmit them to the processor, or to send signals from the processor to other communication devices outside the communication device. The processor is configured to implement the methods of the first or third aspect and any possible design described above through logic circuits or execution code instructions.

[0089] In a seventh aspect, a communication device is provided, including a processor and an interface circuit. The interface circuit is configured to receive signals from other communication devices outside the communication device and transmit them to the processor, or to send signals from the processor to other communication devices outside the communication device. The processor is configured to implement the methods of the second aspect and any possible design described above through logic circuits or execution code instructions.

[0090] Eighthly, a computer-readable storage medium is provided that stores a computer program or instructions which, when executed by a processor, implement the methods of the first, second, or third aspects and any possible designs described above.

[0091] Ninthly, a computer program product storing instructions is provided, which, when executed by a processor, implement the methods of the first, second, or third aspects and any possible design described above.

[0092] In a tenth aspect, a chip system is provided, comprising a processor and potentially a memory, for implementing the methods described in the first, second, or third aspects and any possible designs. The chip system may be composed of chips or may include chips and other discrete devices.

[0093] Eleventhly, a communication system is provided, the system comprising the apparatus described in the first or third aspect (such as a terminal device) and the apparatus described in the second aspect (such as a network device).

[0094] The technical effects that can be achieved by any of the technical solutions in the fourth to eleventh aspects mentioned above can be described with reference to the technical effects that can be achieved by the technical solution in the first aspect mentioned above, and the repeated parts will not be repeated. Attached Figure Description

[0095] Figure 1 This application provides a schematic diagram of the architecture of a communication system.

[0096] Figure 2 This application provides a schematic diagram of the structure of a network device according to an embodiment of the present application.

[0097] Figure 3 This is a schematic diagram of the structure of a gNB provided in an embodiment of this application;

[0098] Figure 4 A schematic diagram illustrating communication between a network device and a UE, provided as an embodiment of this application;

[0099] Figure 5 A flowchart of a communication method provided in an embodiment of this application;

[0100] Figure 6 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0101] Figure 7 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0102] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0103] The following explanations of some terms used in the embodiments of this application are provided to facilitate understanding by those skilled in the art.

[0104] 1) Sounding reference signal (SRS) resource: This resource is used to instruct terminal devices on the time, frequency, and spatial domains to transmit SRS. Network devices can utilize SRS to obtain uplink channel information and manage uplink beams, including beam training and beam switching.

[0105] 2) Antenna Port: An antenna port, also simply called a port, can be understood as an antenna that is recognized by the receiving or transmitting device; or, an antenna that can be distinguished in space. Each virtual antenna can be configured with one antenna port. Each virtual antenna can be a weighted combination of multiple physical antennas, and each antenna port can correspond to a reference signal port.

[0106] 3) SRS port: A virtual antenna port in an SRS resource that represents the transmission of SRS. An SRS resource includes one or more SRS ports.

[0107] Each SRS port can correspond to a specific time-frequency code resource. Ideally, the SRS ports are orthogonal.

[0108] It should be understood that different SRS ports within an SRS resource can occupy the exact same symbols and be multiplexed by frequency division (using different subcarriers) or code division (using different ZC sequences or different cyclic shifts of the same sequence). There is a correspondence between the reference signal resource and the reference signal; the specific correspondence can be found in existing standards. Furthermore, in some scenarios, the reference signal resource and the reference signal can be equivalent.

[0109] 4) Channel State Information (CSI): In a wireless communication system, CSI is information reported by the receiver (e.g., a terminal device) to the transmitter (e.g., an access network device) describing the channel attributes of the wireless communication link between the transmitter and receiver. CSI may include, but is not limited to, precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), channel state information reference signal (CSI-RS resource indicator (CRI), and layer indicator (LI).

[0110] It should be noted that in this application, "sending information / data to A" and "sending information / data" simply indicate the direction of information / data transmission, with A being the destination. It does not limit "sending information / data to A" to necessarily being a transmission over the air interface. "Sending information / data to A" includes both direct and indirect transmission to A. Therefore, "sending information / data to A" can also be understood as the processing unit's communication interface "outputting information / data destined for A." Similarly, "sending information / data" can also be understood as "outputting information / data."

[0111] Similarly, "receiving information / data from A" and "receiving information / data" simply indicate the direction of information / data transmission. "From A" means that the source of the information / data is A, including receiving information / data directly from A and receiving information / data indirectly from A. Therefore, "receiving information / data from A" can also be understood as the processing unit's communication interface "inputting information / data from A". Likewise, "receiving information / data" can also be understood as "inputting information / data".

[0112] In the embodiments of this application, "at least one" refers to one or more, and "more than one" 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 can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0113] Furthermore, unless otherwise stated, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the size, content, order, timing, priority, or importance of multiple objects. For example, "first reference signal resource" and "second reference signal resource" are only used to distinguish different reference signal resources, and do not indicate that the size, priority, or importance of the two reference signal resources are different.

[0114] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0115] The terms "comprising" and "having," and any variations thereof, used in the following description of embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or devices.

[0116] The preceding text introduced some of the terms used in the embodiments of this application. The following text introduces the technical background of the embodiments of this application.

[0117] 5G communication systems place higher demands on system capacity and spectral efficiency. In 5G communication systems, MIMO technology plays a crucial role in improving spectral efficiency. Based on market demands, the peak transmission speed of the downlink needs to be increased to 1.6Gbps. To meet these new market requirements, receivers with multiple receiving antennas, such as 8R receivers, can be used in downlink transmission. An 8R receiver refers to a receiver containing eight receiving antennas. Compared to 4R receivers, 8R receivers can significantly improve the downlink throughput for individual users in a cell and also increase coverage for users at the cell edge.

[0118] However, implementing an 8R receiver is difficult and computationally complex when performing high-stream transmissions (e.g., more than 4 streams). To address this issue, a feasible solution is to split the 8R receiver into two "virtual UEs" each containing a 4R component, with each "virtual UE" handling signal reception and processing independently. Since each "virtual UE" can perform signal reception and processing independently, the network device needs to precode the channel for each "virtual UE" separately. However, with current channel measurement methods, the network device can obtain the CSI of the channels corresponding to all antenna ports of the terminal device, but cannot obtain the CSI corresponding to each "virtual UE" individually. This prevents the enabling of the corresponding precoding design for each "virtual UE," thus affecting communication performance.

[0119] This application provides a communication method and apparatus to improve the communication performance of a receiver employing an antenna port splitting architecture. The method and apparatus are based on the same inventive concept. Since the principles by which the method and apparatus solve the problem are similar, their implementations can be referred to interchangeably, and repeated details will not be repeated.

[0120] The technical solutions provided in this application can be applied to various communication systems, such as the Internet of Things (IoT), narrowband Internet of Things (NB-IoT), Long Term Evolution (LTE), 5G communication systems, LTE and 5G hybrid architectures, 5G NR systems, and new communication systems emerging in future communication development. The 5G communication system described in this application can include at least one of non-standalone (NSA) and standalone (SA) 5G communication systems. The communication system can also be a public land mobile network (PLMN), a device-to-device (D2D) network, a machine-to-machine (M2M) network, or other networks.

[0121] See Figure 1The diagram illustrates a communication system provided in this application embodiment. This system includes a network device and six terminal devices, taking UE1 to UE6 as examples. In this communication system, the network device can transmit signals to UE1 to UE6 respectively on the downlink, and UE1 to UE6 can receive the downlink signals transmitted by the network device. Furthermore, UE4 to UE6 can also form a sub-communication system. The network device can transmit downlink signals to UE1, UE2, UE3, and UE5 on the downlink. UE5 can transmit signals to UE4 and UE6 via a sidelink (SL) based on D2D technology. Figure 1 This is merely an illustrative diagram. This application does not specifically limit the type of communication system, or the number and type of devices included in the communication system.

[0122] The terminal device involved in the embodiments of this application is an entity on the user side used to receive or transmit signals. The terminal device can be a device that provides voice and data connectivity to the user, such as a handheld device or vehicle-mounted device with wireless connectivity. The terminal device can also be other processing devices connected to a wireless modem. The terminal device can communicate with one or more core networks through a radio access network (RAN). The terminal device can also be referred to as a wireless terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment, etc. The terminal device can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device that exchanges voice and data with the radio access network. For example, the terminal device can also be a Personal Communication Service (PCS) telephone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and other devices. Common terminal devices include mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), and wearable devices such as smartwatches, smart bracelets, and pedometers, but the embodiments of this application are not limited to these. The terminal devices involved in the embodiments of this application can also be terminal devices that will appear in future evolution PLMNs, and the embodiments of this application are not limited thereto.

[0123] Furthermore, in this embodiment, the terminal device can also be a terminal device in an IoT system. IoT is an important component of future information technology development, and its main technical feature is connecting objects to networks through communication technologies, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. In this embodiment, IoT technology can achieve massive connectivity, deep coverage, and low terminal power consumption through technologies such as narrowband (NB).

[0124] In addition, in this embodiment, the terminal device may also include sensors such as smart printers, train detectors, and gas stations. Its main functions include collecting data (for some terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0125] The network device involved in the embodiments of this application is an entity on the network side used for transmitting or receiving signals. The network device in the embodiments of this application can be a device in a wireless network, such as a RAN node that connects a terminal to the wireless network. For example, the network device can be an evolved Node B (eNB or e-NodeB) in LTE, a new radio controller (NR controller), a gNode B (gNB) in a 5G system, a centralized unit (CU), a new radio base station, a remote radio module, a micro base station, a relay, a distributed unit (DU), a femtobase station, a transmission reception point (TRP) or transmission point (TP), or any other wireless access device, but the embodiments of this application are not limited to these. The network device can cover one or more cells.

[0126] For example, the structure of the network device in this application embodiment can be as follows: Figure 2As shown. Specifically, a radio access network (RAN) device can be divided into a Control Unit (CU) and at least one Utility Unit (DU). The CU can be used to manage or control at least one DU, or it can be described as the CU being connected to at least one DU. This structure can separate the protocol layers of the RAN device in the communication system, with some protocol layers centrally controlled by the CU, and the remaining part or all of the protocol layer functions distributed in the DU, which is centrally controlled by the CU. Taking a gNB as an example, the gNB's protocol layers include a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) sublayer, and a physical layer. For example, the CU can be used to implement the functions of the RRC, SDAP, and PDCP layers, and the DU can be used to implement the functions of the RLC, MAC, and physical layers. This application does not specifically limit the protocol stacks included in the CU and DU.

[0127] For example, the CU in this embodiment can be further divided into one control plane (CU-CP) network element and multiple user plane (CU-UP) network elements. The CU-CP can be used for control plane management, and the CU-UP can be used for user plane data transmission. The interface between the CU-CP and CU-UP can be an E1 port. The interface between the CU-CP and DU can be an F1-C port for control plane signaling transmission. The interface between the CU-UP and DU can be an F1-U port for user plane data transmission. CU-UPs can be connected via an Xn-U port for user plane data transmission. For example, taking a gNB as an example, the gNB structure can be as follows... Figure 3 As shown.

[0128] For example, communication between a network device and a UE can be as follows: Figure 4As shown, network devices and UEs can exchange RRC signaling via the RRC module. Network devices and UEs can exchange Media Access Control (MAC) CE signaling via the MAC module. Network devices and UEs can exchange uplink / downlink control signaling, such as Physical Uplink Control Channel (PUCCH) / Physical Downlink Control Channel (PDCCH), and uplink / downlink data signaling, such as Physical Uplink Shared Channel (PUSCH) / Physical Downlink Shared Channel (PDSCH), via the PHY module.

[0129] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0130] The communication method provided in this application will be described in detail below with reference to the accompanying drawings.

[0131] The communication method provided in this application embodiment can be applied to... Figure 1 In the communication system shown, for ease of understanding, this embodiment is described from the perspectives of both the terminal device and the network device. It should be understood that this does not constitute a limitation of this application, as improvements are made on either side of the terminal device or the network device. Specifically, this method can be applied to the terminal device and the network device, or it can be applied to the chip or chipset / chip system of the terminal device and the network device. The following description uses an application to the terminal device and the network device as an example. In this application, the terminal device may include multiple antenna ports.

[0132] like Figure 5 As shown, the communication method provided in this application embodiment may specifically include:

[0133] S501: The network device sends the first information. Correspondingly, the terminal device receives the first information.

[0134] The first piece of information is used to indicate at least one reference signal resource. This at least one reference signal resource is used for antenna selection, for example, for antenna switching in xT6R or xT8R.

[0135] The aforementioned at least one reference signal resource may correspond to at least two parts of resources. This at least one reference signal resource may support fixed reference signal port grouping (or reference signal resource grouping), wherein the reference signal ports are arranged in ascending order according to the reference signal resource ID and the port number of the reference signal ports in each reference signal resource. The method of dividing the at least two parts of the aforementioned at least one reference signal resource (which can also be understood as the grouping of reference signal port groups or reference signal resource groups) will be described in detail below.

[0136] The terminal device may include at least two antenna ports (which can also be understood as the antenna ports of the terminal device being divided into at least two parts / at least two groups, etc.). The division method of the at least two antenna ports of the terminal device will be explained in detail below.

[0137] In one exemplary embodiment, a portion of the antenna ports of the terminal device (e.g., the first portion of the antenna ports hereinafter) can be used for signal reception and processing independently.

[0138] In this application, a portion of the antenna port can also be described as a part of the antenna port, a group of antenna ports, a part of the UE receiving antenna, a group of UE receiving antennas, a group of receiving antennas, a part of the receiving antenna, a part of the receiving antenna port, a group of receiving antenna ports, etc.

[0139] Optionally, the first portion of the at least two portions of resources may correspond to the first codeword of the downlink control channel. For example, the first portion of resources (or the first reference signal resource group or the first reference signal port group) corresponding to the first codeword includes the first portion of the SRS ports in the SRS ports corresponding to the at least one reference signal resource.

[0140] Optionally, the first part of the at least two resources may correspond to the first part of the antenna port of the terminal device. This correspondence can also be understood as the first part of the resources being used to measure the channel corresponding to the first part of the antenna port of the terminal device. The correspondence between partial resources and partial antenna ports in the following text (e.g., the second part of the resources corresponding to the second part of the antenna port) can be understood in a similar way, and will not be explained in detail hereafter.

[0141] Optionally, the first portion of the antenna ports may correspond to the first portion of the codeword of a downlink shared channel, such as a physical downlink shared channel (PDSCH). As described above, the first portion of resources corresponds to the first portion of the antenna ports; therefore, in this implementation, it can also be understood that the first portion of resources corresponds to the first portion of the codeword of the downlink shared channel.

[0142] The first part of the antenna ports can correspond to the first part of the codeword, or it can be understood that the first part of the antenna ports is used to receive the first part of the codeword. The correspondence between partial antenna ports and partial codewords in the following text (e.g., the second part of the antenna ports corresponds to the second codeword) can be understood in a similar way, and will not be explained one by one.

[0143] Furthermore, the second portion of the at least two resources may correspond to the second codeword of the downlink control channel. For example, the second portion of the resources (or the second reference signal resource group or the second reference signal port group) corresponding to the second codeword includes the second portion of the SRS ports corresponding to the at least one reference signal resource.

[0144] The second part of the at least two resources can correspond to the second part of the antenna ports of the terminal device. The second part of the antenna ports refers to the antenna ports of the terminal device other than the first part of the antenna ports. Taking an 8R terminal device as an example, the first part of the antenna ports may include 4R, and the second part of the antenna ports may include the remaining 4R.

[0145] The above method can also be described as follows: a portion of the antenna ports of the terminal device (i.e., the first portion of the antenna ports) corresponds to the first portion of the resources, and another portion of the antenna ports (i.e., the second portion of the antenna ports) corresponds to the second portion of the resources.

[0146] Optionally, the second portion of the antenna port can correspond to the second portion of the codeword in the downlink shared channel. The second portion of the codeword can be any codeword in the downlink shared channel other than the first portion of the codeword. As described above, the second portion of the resources corresponds to the second portion of the antenna port; therefore, in this implementation, it can also be understood that the second portion of the resources corresponds to the second portion of the codeword in the downlink shared channel.

[0147] It should be noted that the above description is based on the example of a terminal device having two antenna ports (i.e., the antenna ports of the terminal device are divided into two parts). In specific implementations, the terminal device may also have two or more antenna ports (i.e., the antenna ports of the terminal device may be divided into three, four, or even more parts). Optionally, the other antenna ports may correspond to a portion of the resources of at least one reference signal resource. For example, suppose the antenna ports of the 6R terminal device are divided into three antenna port groups, each of which includes two antenna ports. Antenna port group 1 may correspond to the first portion of at least one reference signal resource, antenna port group 2 may correspond to the second portion of at least one reference signal resource, and antenna port group 3 may correspond to the third portion of at least one reference signal resource.

[0148] Similarly, the downlink shared channel can also include two or more partial codewords (i.e., the downlink shared channel codeword can be divided into three, four, or even more parts). Optionally, other antenna ports can each correspond to a partial codeword of the downlink shared channel. Taking the aforementioned 6R terminal device as an example, assuming the downlink shared channel includes 3 codewords, antenna port group 1 can correspond to codeword 0 of the downlink shared channel, antenna port group 2 can correspond to codeword 1 of the downlink shared channel, and antenna port group 3 can correspond to codeword 3 of the downlink shared channel.

[0149] In one possible scenario, the downlink shared channel may correspond to a codeword. In this scenario, the codeword may correspond to a first portion of the antenna ports, meaning the terminal device can receive the codeword through the first portion of the antenna ports. Alternatively, the codeword may correspond to both a first portion of resources and a second portion of resources, meaning the terminal device can receive the codeword through both the first and second portion of the antenna ports.

[0150] For example, when the PDSCH transmission corresponds to only one codeword, the codeword can correspond to the first group of 4R in the first part of the antenna ports, i.e., the first group of 4R. The terminal device receives the PDSCH corresponding to the codeword through the first group of 4R. Alternatively, when the PDSCH transmission corresponds to only one codeword, the codeword can correspond to the first part of the antenna ports and the second part of the antenna ports. That is, the terminal device can receive the codeword transmitted by the PDSCH through both the first part of the antenna ports and the second part of the antenna ports. In other words, the first group of 4R in the 8R receives the codeword, and the second group of 4R in the 8R also receives the codeword. The terminal device can combine the reception results of the first group of 4R and the second group of 4R to improve the overall reception equivalent signal-to-noise ratio of the codeword and ultimately improve the PDSCH reception quality.

[0151] For example, the reference signal resource mentioned above can be an SRS resource or a demodulation reference signal (DMRS) resource. It is understood that if the reference signal resource is an SRS resource, the reference signal port referred to below is an SRS port. If the reference signal resource is a DMRS resource, the reference signal port referred to below is a DMRS port.

[0152] For ease of understanding, the following explanation uses SRS resources as the reference signal resource. It should be noted that DMRS resources are similar to SRS resources, and can also be divided into multiple DMRS resource groups, multiple DMRS port groups, etc. The difference lies in the grouping method of the reference signal ports. For SRS resources, SRS ports can be grouped according to the order of SRS resources and / or the order of SRS ports. DMRS ports can be grouped according to DMRS code division multiplexing (CDM) groups.

[0153] A DMRS resource group may include one or more DMRS resources.

[0154] A DMRS port group may include all DMRS ports corresponding to one or more DMRS CDM groups. Alternatively, a DMRS port group may include a subset of DMRS ports corresponding to one or more DMRS CDM groups. Or, a DMRS port group may include all DMRS ports corresponding to one or more DMRS CDM groups, and a subset of DMRS ports corresponding to one or more DMRS CDM groups.

[0155] In one possible implementation, the terminal device may also follow the above-described grouping assumption (i.e., the above-described reference signal resource grouping) for CQI calculation. For example, the first CQI is calculated in SRS port group 0 corresponding to the first codeword, and the second CQI is calculated in SRS port group 1 corresponding to the second codeword.

[0156] S502, the terminal device transmits a reference signal on the first part of the resources. Correspondingly, it receives a reference signal on the first part of the resources.

[0157] Optionally, the network device can obtain the CSI of the first part of the antenna port based on the received reference signal, and the CSI can be used to precode the channel corresponding to the first part of the antenna port.

[0158] This application splits the antenna ports of a terminal device into multiple parts, allowing some antenna ports to receive and process signals independently, thus reducing the implementation difficulty and computational complexity of terminal devices with multiple receiving antennas. Furthermore, by associating reference signal resources with the individual antenna ports responsible for signal reception and processing, network devices and terminal devices can obtain the channel state information of the channel corresponding to that antenna port based on the corresponding reference signal resources. This allows for precoding of the channel corresponding to that antenna port based on the channel state information, thereby improving communication performance.

[0159] For example, taking an 8R terminal device as an example, the eight antenna ports of the terminal device can be divided into two groups: one group includes 4R antenna ports, and the other group includes the remaining 4R antenna ports. These two groups of antenna ports can be used for signal reception and processing independently. Using the scheme of this application, a group of antenna ports can be associated with a portion of reference signal resources. This allows the acquisition of channel state information for the channel corresponding to that group of antenna ports through these reference signal resources. Furthermore, the precoding design for that group of antenna ports can be enabled based on the channel state information.

[0160] The following describes two methods for dividing at least two parts of the above-mentioned reference signal resource.

[0161] One possible partitioning method is to partition at the reference signal resource level. In this method, any of the aforementioned resources may include one or more reference signal resources from at least one reference signal resource.

[0162] In a specific example, the aforementioned at least one reference signal resource can be divided into multiple reference signal resource groups. In this example, a reference signal resource group can be understood as a subset of resources.

[0163] In this example, the first part of the resources corresponds to the first part of the antenna port. This can be understood as the first reference signal resource group in multiple reference signal resource groups corresponding to the first part of the antenna port.

[0164] Another possible partitioning method is to partition at the reference signal port level. As can be seen from the terminology described above, a reference signal resource includes one or more reference signal ports. In this method, any part of the resource includes a portion of the reference signal ports in the reference signal ports corresponding to at least one reference signal resource.

[0165] In a specific example, the reference signal ports included in the above-mentioned at least one reference signal resource are divided into multiple reference signal port groups.

[0166] A group of reference signal ports may include all reference signal ports corresponding to one or more reference signal resources in the at least one reference signal resource (e.g., Examples 1-3 and 6 below). Alternatively, a group of reference signal ports may include a portion of the reference signal ports corresponding to one or more reference signal resources in the at least one reference signal resource (e.g., Example 5 below). Alternatively, a group of reference signal ports may include all reference signal ports corresponding to one or more reference signal resources in the at least one reference signal resource, and a portion of the reference signal ports corresponding to one or more reference signal resources (e.g., Example 7 below).

[0167] In this example, a reference signal port group can be understood as a portion of the resources.

[0168] In this example, the first part of the resources corresponds to the first part of the antenna ports. This can be understood as the first reference signal port group in the multiple reference signal port groups corresponding to the first part of the antenna ports.

[0169] The above describes two ways of dividing at least two parts of the above-mentioned reference signal resources. The following example illustrates the division (or grouping) of the above-mentioned reference signal resources using the antenna port of the terminal device.

[0170] Example 1: For a 1T8R terminal device, the above-mentioned at least one reference signal resource can be eight reference signal resources (assuming they are reference signal resources 0 to 7), wherein one reference signal resource includes one reference signal port.

[0171] The first part of the resources includes the reference signal ports corresponding to 4 of the 8 reference signal resources. For example, the first part of the resources includes the reference signal ports corresponding to reference signal resources 0 to 3.

[0172] The second part of the resources includes the reference signal ports corresponding to the remaining 4 of the 8 reference signal resources. For example, the second part of the resources includes the reference signal ports corresponding to reference signal resources 4 to 7.

[0173] Example 2: For a 2T8R terminal device, the above-mentioned at least one reference signal resource can be four reference signal resources (assuming they are reference signal resources 0 to 3), wherein one reference signal resource includes two reference signal ports.

[0174] The first part of the resources includes two of the four reference signal resources. For example, the first part of the resources includes reference signal resources 0 to 1.

[0175] The second part of the resources includes the remaining two reference signal resources out of the four reference signal resources. For example, the second part of the resources includes reference signal resources 2 to 3.

[0176] Example 3: For a 4T8R terminal device, the above-mentioned at least one reference signal resource is two reference signal resources (assuming they are reference signal resources 0 to 1), wherein one reference signal resource includes four reference signal ports.

[0177] The first part of the resources includes one of the two reference signal resources, for example, the first part of the resources includes reference signal resource 0.

[0178] The second part of the resources includes another reference signal resource among the two reference signal resources. For example, the second part of the resources includes reference signal resource 1.

[0179] Example 4: For an 8T8R terminal device, the above-mentioned at least one reference signal resource is one reference signal resource (assuming it is reference signal resource 0), wherein one reference signal resource includes eight reference signal ports (assuming it is reference signal ports 0 to 7).

[0180] The first part of the resources includes four of the eight reference signal ports. For example, the first part of the resources includes reference signal ports 0 to 3 of reference signal resource 0.

[0181] The second part of the resources includes the remaining 4 of the 8 reference signal ports. For example, the second part of the resources includes reference signal ports 4 to 7 of reference signal resource 0.

[0182] Example 5: For a 1T6R terminal device, the above-mentioned at least one reference signal resource can be 6 reference signal resources (assuming they are reference signal resources 0 to 5), wherein one reference signal resource includes one reference signal port.

[0183] The first part of the resources includes the reference signal ports corresponding to 3 of the 6 reference signal resources. For example, the first part of the resources includes reference signal resources 0 to 2.

[0184] The second part of the resources includes the reference signal ports corresponding to the remaining 3 of the 6 reference signal resources. For example, the second part of the resources includes reference signal resources 3 to 5.

[0185] Example 6: For a 2T6R terminal device, the above-mentioned at least one reference signal resource is three reference signal resources (assumed to be reference signal resources 0 to 2), wherein one reference signal resource includes two reference signal ports (assumed to be reference signal ports 0 to 1).

[0186] The first part of the resources includes two reference signal ports of the first reference signal resource and one reference signal port of the second reference signal resource. For example, the first part of the resources includes reference signal ports 0 to 1 of reference signal resource 0 and reference signal port 0 of reference signal resource 1.

[0187] The second part of the resources includes another reference signal port of the second reference signal resource and two reference signal ports of the third reference signal resource. For example, the second part of the resources includes reference signal port 1 of reference signal resource 1 and reference signal ports 0 to 1 of reference signal resource 2.

[0188] Example 7: For a 3T6R terminal device, the above-mentioned at least one reference signal resource can be two reference signal resources (assuming they are reference signal resources 0 to 1), wherein one reference signal resource includes three reference signal ports.

[0189] The first part of the resources includes the reference signal port corresponding to one of the two reference signal resources. For example, the first part of the resources includes reference signal resource 0.

[0190] The second part of the resources includes the reference signal port corresponding to the remaining reference signal resource out of the two reference signal resources. For example, the second part of the resources includes reference signal resource 1.

[0191] Example 8, for 4T6R terminal devices.

[0192] One approach is that the aforementioned at least one reference signal resource consists of three reference signal resources (assumed to be reference signal resources 0 to 2), and each reference signal resource includes two reference signal ports (assumed to be reference signal ports 0 to 1). Two of these reference signal resources can transmit reference signals simultaneously or be understood as having the same time-domain resources.

[0193] The first part of the resources includes two reference signal ports of the first reference signal resource and one reference signal port of the second reference signal resource. For example, the first part of the resources includes reference signal ports 0 to 1 of reference signal resource 0 and reference signal port 0 of reference signal resource 1.

[0194] Another approach is that at least one of the above-mentioned reference signal resources consists of two reference signal resources (assuming they are reference signal resources 0 to 1), and one reference signal resource includes four reference signal ports (assuming they are reference signal ports 0 to 3).

[0195] The first part of the resources includes four reference signal ports of one of the two reference signal resources. For example, the first part of the resources includes reference signal ports 0 to 3 of reference signal resource 0.

[0196] The second part of the resources includes four reference signal ports of another reference signal resource in the two reference signal resources. For example, the second part of the resources includes reference signal ports 0 to 3 of reference signal resource 1.

[0197] The following describes two ways to divide the antenna ports of a terminal device into at least two parts.

[0198] Method 1: The terminal device can determine at least two parts of the antenna port based on the channel state information reference signal, that is, divide the antenna port of the terminal device into at least two parts according to the channel state information reference signal.

[0199] In this method one, the terminal device can also send second information to the network device, the second information being used to indicate the above-mentioned at least two parts of the antenna ports of the terminal device (i.e., to indicate the antenna port grouping of the terminal device).

[0200] Method 2: The network device determines at least two parts of the antenna port based on at least one of the above-mentioned reference signal resources, that is, the antenna port of the terminal device is divided into at least two parts based on at least one of the above-mentioned reference signal resources.

[0201] In this second method, the network device can also send third information to the terminal device, which is used to indicate the above-mentioned at least two parts of the antenna ports of the terminal device (i.e., to indicate the antenna port grouping of the terminal device).

[0202] In both of the above methods, the second / third information can indicate the antenna port grouping status through one or more parameters such as comb teeth, cyclic shift, and port index.

[0203] The following describes two methods for determining the correspondence between reference signal resources and some antenna ports of terminal equipment.

[0204] In one approach, the correspondence between reference signal resources and a subset of antenna ports is predefined. For example, for a 1T8R terminal device, the receiving antennas (or receiving antenna ports) of the terminal device are divided into two groups, each including 4R. For this example, the protocol can define one group of antenna ports corresponding to reference signal resource group 0 (or reference signal port group 0), where reference signal resource group 0 (or reference signal port group 0) includes the reference signal ports corresponding to reference signal resources 0-3. The other group of antenna ports corresponds to reference signal resource group 1 (or reference signal port group 1), where reference signal resource group 1 (or reference signal port group 1) includes the reference signal ports corresponding to reference signal resources 4-7.

[0205] Similarly, the correspondence between reference signal resources / partial antenna ports and codewords can also be predefined. For example, taking the above example, assuming PDSCH corresponds to two codewords, codeword 0 and codeword 1, the protocol can define a set of antenna ports corresponding to reference signal resource group 0 (or reference signal port group 0), and reference signal resource group 0 (or reference signal port group 0) corresponding to codeword 0. Reference signal resource group 0 (or reference signal port group 0) includes the reference signal ports corresponding to reference signal resources 0 to 3. Another set of antenna ports corresponds to reference signal resource group 1 (or reference signal port group 1), and reference signal resource group 1 (or reference signal port group 1) corresponds to codeword 1. Reference signal resource group 1 (or reference signal port group 1) includes the reference signal ports corresponding to reference signal resources 4 to 7.

[0206] In another approach, the correspondence between reference signal resources and partial antenna ports can be configured by the network device, for example, through radio resource control (RRC) parameters / downlink control information (DCI).

[0207] Similarly, the correspondence between reference signal resources / partial antenna ports and codewords can also be configured by the network device, for example, through RRC parameters / DCI.

[0208] In one example, a network device can be configured via RRC parameters to include two antenna port groups (or divided into two antenna port parts), namely antenna port group 0 and 1. Alternatively, a network device can be configured via RRC parameters to include two reference signal port groups (or reference signal resource groups), namely reference signal port group 0 and 1 (or reference signal resource group 0 and 1).

[0209] DCI can use a 1-bit indication to notify the terminal device of either codeword 0 or 1 associated with antenna port group 0, or codeword 0 or 1 associated with reference signal port group 0. In this way, the terminal device determines the codeword index corresponding to the reference signal port group and / or a portion of the receive antenna port group index.

[0210] The above describes how network devices obtain the CSI of the channels corresponding to certain antenna ports. The following describes hardware improvements for terminal devices when antenna ports are divided into multiple parts.

[0211] In one possible implementation, the first part of the antenna port corresponds to a radio frequency integrated circuit (RFIC), and the second part of the antenna port corresponds to another RFIC.

[0212] In one exemplary description, the first portion of resources corresponds to a first portion of antenna ports, or it can be described as the first portion of resources corresponding to a first sub-receiver (or a first RFIC). The second portion of resources corresponds to a second portion of antenna ports, or it can be described as the second portion of resources corresponding to a second sub-receiver (or a second RFIC).

[0213] In another possible implementation, the first part of the antenna port corresponds to the first part of the port in the first radio frequency integrated circuit and the second part of the port in the second radio frequency integrated circuit. The first part of the antenna port corresponds to the ports in the first radio frequency integrated circuit other than the first part of the port and the ports in the second radio frequency integrated circuit other than the second part of the port.

[0214] In this configuration, the ports of the first RF integrated circuit and the ports of the second RF integrated circuit correspond to the same comb teeth. The first portion of the ports includes at least one port with the largest / smallest cyclic shift among the ports of the first RF integrated circuit, and the second portion of the ports includes at least one port with the largest / smallest cyclic shift among the ports of the second RF integrated circuit. Taking an 8R terminal device as an example, the first portion of the antenna ports includes two ports with the largest / smallest cyclic shift among the ports of the first RF integrated circuit and two ports with the largest / smallest cyclic shift among the ports of the second RF integrated circuit.

[0215] Alternatively, the ports of the first RF integrated circuit correspond to multiple comb teeth, and the ports of the second RF integrated circuit also correspond to multiple comb teeth. The first portion of the ports consists of the ports in the first RF integrated circuit corresponding to the first comb tooth, and the second portion of the ports consists of the ports in the second RF integrated circuit corresponding to the first comb tooth. Taking an 8R terminal device as an example, the ports of the first RF integrated circuit correspond to two comb teeth, the ports of the second RF integrated circuit correspond to two comb teeth, and the first portion of the antenna ports includes both the ports in the first RF integrated circuit and the ports in the second RF integrated circuit corresponding to the first comb tooth.

[0216] Alternatively, the first portion of the ports includes at least one port with the largest / smallest index among the ports of the first RF integrated circuit, and the second portion of the ports includes at least one port with the largest / smallest index among the ports of the second RF integrated circuit. Taking an 8R terminal device as an example, the first portion of the antenna ports includes two ports with the largest / smallest index among the ports of the first RF integrated circuit and two ports with the largest / smallest index among the ports of the second RF integrated circuit.

[0217] In one possible implementation, the terminal device can enable (or trigger, turn on, etc.) via fourth information. Figure 5 The method is as follows. For example, the terminal device may report fourth information, which indicates that the terminal device contains at least two parts of antenna ports (or indicates that the antenna ports of the terminal device are divided into at least two parts), and / or, the fourth information indicates that at least one reference signal resource corresponds to at least two parts of resources (or indicates that at least one reference signal resource is divided into at least two parts of resources).

[0218] In one example, the fourth piece of information could be a single piece of information.

[0219] Alternatively, the function of the fourth information can also be achieved through the second information, that is, the terminal device can use the second information to indicate that the terminal device includes at least two parts of antenna ports (or indicate that the antenna ports of the terminal device are divided into at least two parts), and / or indicate that at least one reference signal resource corresponds to at least two parts of resources (or indicate that at least one reference signal resource is divided into at least two parts of resources).

[0220] In the above implementation, if the terminal device does not send the fourth information, the terminal device can receive the downlink shared channel without splitting the antenna port.

[0221] In another possible implementation, the network device can be enabled (or triggered, turned on, etc.) via the fifth piece of information. Figure 5 The method. For example, a network device can send a fifth message indicating that the terminal device contains at least two portions of antenna ports, and / or a fourth message indicating that at least one reference signal resource corresponds to at least two portions of resources.

[0222] In one example, in a scheme where network devices configure the correspondence between reference signal resources and partial antenna ports through RRC parameters, the information indicating the correspondence between reference signal resources and partial antenna ports can be understood as the fifth information, that is, the information indicating the correspondence between reference signal resources and partial antenna ports can achieve the function of the fifth information.

[0223] Alternatively, in a scheme where network devices configure the correspondence between reference signal resources / partial antenna ports and codewords via DCI, the information indicating the correspondence between reference signal resources / partial antenna ports and codewords can be understood as the fifth information, that is, the information indicating the correspondence between reference signal resources / partial antenna ports and codewords can achieve the function of the fifth information.

[0224] Alternatively, the fifth piece of information can also be a separate piece of information.

[0225] In the above implementation, if the terminal device does not receive the fifth information, the terminal device can receive the downlink shared channel without splitting the antenna port.

[0226] This application splits the antenna ports of a terminal device into multiple parts, allowing some antenna ports to receive and process signals independently, thus reducing the implementation difficulty and computational complexity of terminal devices with multiple receiving antennas. Furthermore, by associating reference signal resources with the individual antenna ports responsible for signal reception and processing, the network device and terminal device can obtain the channel state information of the channel corresponding to that antenna port based on the corresponding reference signal resources. This allows for precoding of the channel corresponding to that antenna port based on the channel state information, thereby improving communication performance.

[0227] Based on the same inventive concept as the method embodiments, this application provides a communication device, the structure of which can be as follows: Figure 6 As shown, it includes a communication unit 601 and a processing unit 602.

[0228] In one embodiment, the communication device can specifically be used to implement Figure 5In the embodiments, the terminal device executes a method. This device can be the terminal device itself, or a chip or chipset within the terminal device, or a part of a chip used to execute related method functions. Specifically, a communication unit 601 is used to receive first information, which indicates at least one reference signal resource. This at least one reference signal resource corresponds to at least two resource portions. The terminal device includes at least two antenna ports, wherein a first portion of the at least two resource portions corresponds to a first portion of the antenna ports. A processing unit 602 is used to transmit a reference signal on the first resource portion via the communication unit 601.

[0229] Optionally, the processing unit 602 is further configured to determine the at least two portions of the antenna ports based on the channel state information reference signal. The communication unit 601 is further configured to transmit second information, the second information being used to indicate the at least two portions of the antenna ports.

[0230] Optionally, the communication unit 601 is also configured to receive third information, which is used to indicate the at least two antenna ports.

[0231] In one embodiment, the communication device can specifically be used to implement the method executed by the network device in embodiment 5. The device can be the network device itself, or a chip or chipset within the network device, or a part of the chip used to execute the relevant method function. Specifically, the communication unit 601 is used to send first information, which indicates at least one reference signal resource. This at least one reference signal resource corresponds to at least two parts of resources. The terminal device includes at least two parts of antenna ports, wherein a first part of the at least two parts of resources corresponds to a first part of the antenna ports. The processing unit 602 is used to receive reference signals on the first part of the resources via the communication unit 601.

[0232] Optionally, the communication unit 601 is also used to receive second information, which is used to indicate at least two antenna ports.

[0233] Optionally, the processing unit 602 is further configured to determine at least two portions of the antenna ports based on at least one reference signal resource. The communication unit 601 is further configured to transmit third information indicating the at least two portions of the antenna ports.

[0234] The module division in this application embodiment is illustrative and represents only one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the various embodiments of this application can be integrated into a single processor, exist as separate physical entities, or be integrated into a single module. The integrated modules described above can be implemented in hardware or as software functional modules. It is understood that the functions or implementations of the modules in the embodiments of this application can be further described in the relevant descriptions of the method embodiments.

[0235] In one possible approach, the communication device can be as follows: Figure 7 As shown, the device can be a communication device or a chip within a communication device, wherein the communication device can be the terminal device in the above embodiments or the network device in the above embodiments. The device includes a processor 701 and a communication interface 702, and may also include a memory 703. The processing unit 602 can be the processor 701. The communication unit 601 can be the communication interface 702. Optionally, the processor 701 and the memory 703 can also be integrated together.

[0236] The processor 701 can be a CPU, a digital processing unit, or something similar. The communication interface 702 can be a transceiver, an interface circuit such as a transceiver circuit, or a transceiver chip, etc. The device also includes a memory 703 for storing the program executed by the processor 701. The memory 703 can be non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). The memory 703 can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures that can be accessed by a computer, but is not limited to this.

[0237] The processor 701 is used to execute the program code stored in the memory 703, specifically to perform the actions of the processing unit 602 described above, which will not be described in detail here. The communication interface 702 is specifically used to perform the actions of the communication unit 601 described above, which will not be described in detail here.

[0238] This application embodiment does not limit the specific connection medium between the communication interface 702, processor 701, and memory 703. This application embodiment... Figure 7 The memory 703, processor 701, and communication interface 702 are connected via a bus 704. Figure 7The connections between other components are shown in bold lines only and are not intended to be limiting. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, Figure 7 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0239] This invention also provides a computer-readable storage medium for storing computer software instructions required to execute the processor, including a program required to execute the processor.

[0240] This application also provides a communication system, including methods for implementing... Figure 5 In the embodiments, a communication device for implementing terminal device functions and a communication device for implementing terminal device functions are provided. Figure 5 The embodiment is a communication device that functions as a network device.

[0241] 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, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0242] 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, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0243] 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, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0244] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0245] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and 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: Receive first information, the first information being used to indicate at least one reference signal resource, the at least one reference signal resource corresponding to at least two parts of resources, the terminal device including at least two parts of antenna ports, wherein a first part of the at least two parts of resources corresponds to a first part of the antenna ports in the at least two parts of antenna ports; Send a reference signal on the first part of the resources.

2. The method as described in claim 1, characterized in that, The second part of the at least two resources corresponds to the second part of the at least two antenna ports, and the second part of the antenna ports is the antenna port of the terminal device other than the first part of the antenna ports.

3. The method as described in claim 1 or 2, characterized in that, The first portion of the antenna port corresponds to the first portion of the codeword of the downlink shared channel, and / or the first portion of the resource corresponds to the first portion of the codeword of the downlink shared channel.

4. The method as described in claim 3, characterized in that, The second portion of the at least two antenna ports corresponds to the second portion of the codeword of the downlink shared channel, and / or the second portion of the at least two resources corresponds to the second portion of the codeword of the downlink shared channel.

5. The method as described in claim 4, characterized in that, If the downlink shared channel corresponds to a codeword, the codeword corresponds to the first part of resources and / or the first part of antenna ports; Alternatively, if the downlink shared channel corresponds to a codeword, the codeword corresponds to the first part of the resources and the second part of the resources, and / or the codeword corresponds to the first part of the antenna port and the second part of the antenna port.

6. The method according to any one of claims 1-5, characterized in that, Each of the aforementioned partial resources includes one or more of the at least one reference signal resource.

7. The method as described in claim 6, characterized in that, The at least one reference signal resource corresponds to at least two parts of resources, including: The at least one reference signal resource is divided into multiple reference signal resource groups; The first part of the at least two resources corresponds to the first part of the antenna ports in the at least two parts of antenna ports, including: The first reference signal resource group in the plurality of reference signal resource groups corresponds to the first portion of the antenna ports.

8. The method according to any one of claims 1-5, characterized in that, A reference signal resource includes one or more reference signal ports, and any partial resource includes a portion of the reference signal ports corresponding to the at least one reference signal resource.

9. The method as described in claim 8, characterized in that, The at least one reference signal resource corresponds to at least two parts of resources, including: The at least one reference signal resource includes reference signal ports that are divided into multiple reference signal port groups; The first part of the at least two resources corresponds to the first part of the antenna ports in the at least two parts of antenna ports, including: The first reference signal port group in the plurality of reference signal port groups corresponds to the first portion of antenna ports.

10. The method as described in claim 9, characterized in that, A group of reference signal ports includes all reference signal ports corresponding to one or more of the at least one reference signal resource; Alternatively, one of the reference signal port groups includes a portion of the reference signal ports corresponding to one or more of the at least one reference signal resources; Alternatively, a group of reference signal ports may include all reference signal ports corresponding to one or more reference signal resources in the at least one reference signal resource, and a portion of the reference signal ports corresponding to one or more reference signal resources.

11. The method as described in claim 2, characterized in that, The at least one reference signal resource comprises eight reference signal resources, wherein one of the reference signal resources includes one reference signal port; The first part of the resources includes the reference signal ports corresponding to four of the eight reference signal resources; The second part of the resources includes the reference signal ports corresponding to the remaining 4 of the 8 reference signal resources.

12. The method as described in claim 2, characterized in that, The at least one reference signal resource is one reference signal resource, wherein one reference signal resource includes eight reference signal ports; The first portion of resources includes four of the eight reference signal ports; The second part of the resources includes the remaining 4 reference signal ports out of the 8 reference signal ports.

13. The method as described in claim 2, characterized in that, The at least one reference signal resource is three reference signal resources, wherein one of the reference signal resources includes two reference signal ports; The first part of the resources includes two reference signal ports of the first reference signal resource and one reference signal port of the second reference signal resource among the three reference signal resources; The second part of the resources includes another reference signal port of the second reference signal resource and two reference signal ports of the third reference signal resource.

14. The method according to any one of claims 1-9, characterized in that, The first portion of the at least one reference signal resource corresponds to the first portion of the antenna port of the terminal device, including: The antenna ports of the terminal device are divided into multiple antenna port groups. The first part of the antenna ports is the first antenna port group among the multiple antenna port groups, and the first part of the resources corresponds to the first antenna port group.

15. The method according to any one of claims 1-14, characterized in that, The correspondence between the first part of resources and the first part of antenna ports is predefined; Alternatively, the correspondence between the first portion of resources and the first portion of antenna ports is configured by the network device through radio resource control parameters.

16. The method according to any one of claims 3-5, characterized in that, The correspondence between the first portion of resources and the portion of codewords is configured by the network device through downlink control information, and / or the correspondence between the first portion of antenna ports and the portion of codewords is configured by the network device through downlink control information.

17. The method according to any one of claims 1-16, characterized in that, The method further includes: The at least two antenna ports are determined based on the channel state information reference signal; Send a second message, which is used to indicate the at least two portions of the antenna ports.

18. The method according to any one of claims 1-17, characterized in that, The method further includes: Receive third information, which is used to indicate the at least two antenna ports.

19. The method according to any one of claims 1-18, characterized in that, The reference signal resource is the detection reference signal (SRS) resource.

20. The method according to any one of claims 1-19, characterized in that, The method further includes: The fourth information is reported, which is used to indicate that the terminal device includes at least two antenna ports, and / or the fourth information is used to indicate that the at least one reference signal resource corresponds to at least two resources; Alternatively, a fifth piece of information may be received, the fifth piece of information being used to indicate that the terminal device includes at least two portions of antenna ports, and / or the fourth piece of information being used to indicate that the at least one reference signal resource corresponds to at least two portions of resources.

21. A communication method, characterized in that, include: Send first information, the first information being used to indicate at least one reference signal resource, the at least one reference signal resource corresponding to at least two parts of resources, the terminal device including at least two parts of antenna ports, wherein the first part of the at least two parts of resources corresponds to the first part of the antenna ports in the at least two parts of antenna ports; Receive reference signals on the first portion of resources.

22. The method as described in claim 21, characterized in that, The second part of the at least two resources corresponds to the second part of the at least two antenna ports, and the second part of the antenna ports is the antenna port of the terminal device other than the first part of the antenna ports.

23. The method as described in claim 21 or 22, characterized in that, The first portion of the antenna port corresponds to the first portion of the codeword of the downlink shared channel, and / or the first portion of the resource corresponds to the first portion of the codeword of the downlink shared channel.

24. The method as described in claim 23, characterized in that, The second portion of the at least two antenna ports corresponds to the second portion of the codeword of the downlink shared channel, and / or the second portion of the at least two resources corresponds to the second portion of the codeword of the downlink shared channel.

25. The method as described in claim 24, characterized in that, If the downlink shared channel corresponds to a codeword, the codeword corresponds to the first part of resources and / or the first part of antenna ports; Alternatively, if the downlink shared channel corresponds to a codeword, the codeword corresponds to the first part of the resources and the second part of the resources, and / or the codeword corresponds to the first part of the antenna port and the second part of the antenna port.

26. The method according to any one of claims 21-25, characterized in that, The first portion of the at least one reference signal resource corresponds to the first portion of the antenna port of the terminal device, including: The antenna ports of the terminal device are divided into multiple antenna port groups. The first part of the antenna ports is the first antenna port group among the multiple antenna port groups, and the first part of the resources corresponds to the first antenna port group.

27. The method according to any one of claims 21-26, characterized in that, The reference signal resource is the detection reference signal (SRS) resource.

28. The method according to any one of claims 21-27, characterized in that, The method further includes: Receive fourth information, the fourth information being used to indicate that the terminal device includes at least two antenna ports, and / or, the fourth information being used to indicate that the at least one reference signal resource corresponds to at least two resources; Alternatively, a fifth message may be sent, the fifth message indicating that the terminal device contains at least two antenna ports, and / or the fourth message indicating that the at least one reference signal resource corresponds to at least two resources.

29. A communication device, characterized in that, It includes units or modules for performing the method as described in any one of claims 1-20, or units or modules for performing the method as described in any one of claims 21-28.

30. A computer-readable storage medium, characterized in that, The computer storage medium stores computer-readable instructions that, when executed on a communication device, cause the method described in any one of claims 1-20 to be performed, or the method described in any one of claims 21-28 to be performed.

31. A computer program product, characterized in that, When the computer program product is run on the device, it causes the device to perform the method according to any one of claims 1-20 or the method according to any one of claims 21-28.

32. A chip, characterized in that, The device includes a processor connected to a memory for storing a computer program, and the processor for executing the computer program stored in the memory to cause the chip to perform the method as described in any one of claims 1-20 or the method as described in any one of claims 21-28.

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