Uplink transmission and reception methods and apparatuses
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 1FINITY INC
- Filing Date
- 2023-12-29
- Publication Date
- 2026-07-10
Smart Images
Figure CN122375084A_ABST
Abstract
Description
Uplink sending and receiving method and device Technical Field
[0001] The embodiments of the present application relate to the field of communication technologies. Background Art
[0002] In New Radio (NR) systems, codebook-based uplink transmissions, such as Physical Uplink Shared Channel (PUSCH) transmissions, are supported. PUSCH transmissions can use a single port, two ports, four ports, or eight ports.
[0003] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.
[0004] Summary of the Invention
[0005] The inventors have discovered that the current codebook-based uplink transmission does not support UEs with 3 Tx, that is, does not support 3-port PUSCH transmission. For 3-port uplink transmission, there is currently no clear solution.
[0006] To address at least one of the above problems, an embodiment of the present application provides an uplink sending and receiving method and apparatus.
[0007] According to one aspect of an embodiment of the present application, an uplink sending method is provided, including:
[0008] The terminal device receives configuration information from the network device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0009] The terminal device uses 3 ports for uplink transmission according to the configuration information.
[0010] According to another aspect of an embodiment of the present application, an uplink sending device is provided, including:
[0011] A receiving unit, which receives configuration information from a network device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0012] A sending unit uses three ports for uplink transmission according to the configuration information.
[0013] According to another aspect of an embodiment of the present application, an uplink receiving method is provided, including:
[0014] The network device sends configuration information to the terminal device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0015] The network device receives the uplink transmission performed by the terminal device using 3 ports according to the configuration information.
[0016] According to another aspect of an embodiment of the present application, an uplink receiving device is provided, including:
[0017] A sending unit, which sends configuration information to a terminal device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0018] A receiving unit receives uplink transmission performed by the terminal device using 3 ports according to the configuration information.
[0019] According to another aspect of an embodiment of the present application, a communication system is provided, including:
[0020] A network device that sends configuration information to a terminal device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0021] The terminal device uses 3 ports for uplink transmission according to the configuration information.
[0022] One of the beneficial effects of the embodiments of the present application is that: the terminal device receives configuration information from the network device; wherein the configuration information is used to configure the terminal device for 3-port uplink transmission; and 3 ports are used for uplink transmission according to the configuration information; thereby, the performance and efficiency of uplink transmission can be improved.
[0023] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.
[0024] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.
[0025] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.
[0027] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;
[0028] FIG2 is a schematic diagram of an uplink sending method according to an embodiment of the present application;
[0029] FIG3 is a schematic diagram of an uplink receiving method according to an embodiment of the present application;
[0030] FIG4 is a schematic diagram of an uplink sending device according to an embodiment of the present application;
[0031] FIG5 is a schematic diagram of an uplink receiving device according to an embodiment of the present application;
[0032] FIG6 is a schematic diagram of a terminal device according to an embodiment of the present application;
[0033] FIG7 is a schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION
[0034] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.
[0035] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.
[0036] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.
[0037] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), etc.
[0038] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and / or other communication protocols currently known or to be developed in the future.
[0039] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.
[0040] Among them, base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), IAB host, etc., and may also include remote radio head (RRH, Remote Radio Head), remote radio unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femeto, pico, etc.). The term "base station" can include some or all of their functions. Each base station can provide communication coverage for a specific geographical area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.
[0041] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.
[0042] Among them, terminal devices may include but are not limited to the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, etc.
[0043] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.
[0044] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.
[0045] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.
[0046] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a situation using a terminal device and a network device as an example. As shown in FIG1 , a communication system 100 may include a network device 101 and terminal devices 102 and 103. For simplicity, FIG1 illustrates only two terminal devices and one network device as an example, but the embodiments of the present application are not limited thereto.
[0047] In the embodiment of the present application, existing services or future services can be transmitted between the network device 101 and the terminal devices 102 and 103. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.
[0048] It is worth noting that FIG1 shows that both terminal devices 102 and 103 are within the coverage range of network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 may not be within the coverage range of network device 101, or one terminal device 102 may be within the coverage range of network device 101 while the other terminal device 103 is outside the coverage range of network device 101.
[0049] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, an MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.
[0050] In the following description, to avoid confusion, the terms "PUCCH" and "physical uplink control channel" or "uplink control information" are interchangeable, and the terms "PUSCH" and "physical uplink data channel" or "uplink data" are also interchangeable. In addition, transmitting or receiving PUSCH can be understood as transmitting or receiving uplink data carried by the PUSCH.
[0051] Embodiments of the first aspect
[0052] An embodiment of the present application provides an uplink sending method, which is described from the terminal device side.
[0053] FIG2 is a schematic diagram of an uplink sending method according to an embodiment of the present application. As shown in FIG2 , the method includes:
[0054] 201, a terminal device receives configuration information from a network device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0055] 202. The terminal device uses port 3 for uplink transmission according to the configuration information.
[0056] It is worth noting that FIG2 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG2 above.
[0057] In some embodiments, 4-port sounding reference signal (SRS) resources are reused; and one port of the 4-port SRS resources is not used for the 3-port uplink transmission.
[0058] For example, for 3Tx uplink transmission, an SRS resource with 4 ports is reused, and one port is not used for the 3-port uplink transmission. Which port is not used for the 3-port uplink transmission can be configured and / or indicated by the network device.
[0059] In some embodiments, one port not used for three-port uplink transmission is configured through RRC signaling, and / or indicated through MAC-CE, and / or indicated through DCI.
[0060] For example, a certain port may be configured not to be used for 3-port uplink transmission through information in RRC signaling.
[0061] For another example, a port can be activated through MAC-CE so that it is not used for 3-port uplink transmission; or, 3 ports can be activated through MAC-CE so that they are used for 3-port uplink transmission, and the remaining port is not used for the 3-port uplink transmission; or, a port can be deactivated through MAC-CE so that the port is not used for 3-port uplink transmission.
[0062] For another example, DCI may be used to indicate that a certain port is not used for 3-port uplink transmission.
[0063] In some embodiments, the 3-port uplink transmission is scheduled via DCI, and ports not used for the 3-port uplink transmission are indicated via a field added to the DCI.
[0064] For example, if DCI is used to indicate which SRS port is not used for 3-port uplink transmission, a new DCI field may be added to the DCI format, and the field may schedule 3-port PUSCH transmission. The DCI format is, for example, DCI format 0_1 / 0_2 / 0_3.
[0065] In some embodiments, 3-port SRS transmission is achieved by bundling a 2-port SRS resource with a single-port SRS resource.
[0066] For example, for 3Tx uplink transmission, a 3-port SRS operation can be performed by bundling a 2-port SRS resource and a single-port SRS resource. The 2-port SRS resource and the single-port SRS resource can be time division multiplexed (TDM); for example, on different OFDM symbols, where the OFDM symbols can be adjacent. Alternatively, the 2-port SRS resource and the single-port SRS resource can be frequency division multiplexed (FDM); for example, on different REs with different comb offsets. Alternatively, the 2-port SRS resource and the single-port SRS resource can occupy the same RE; for example, the 2-port SRS resource and the single-port SRS resource are distinguished by different cyclic shifts.
[0067] In some embodiments, 3-port SRS transmission is achieved by bundling 3 single-port SRS resources.
[0068] For example, for 3Tx uplink transmission, 3-port SRS operation can be performed by bundling 3 single-port SRS resources. The 3 single-port SRS resources can be time-division multiplexed (TDM), for example, on different OFDM symbols, where the OFDM symbols can be adjacent. Alternatively, the 3 single-port SRS resources can be frequency-division multiplexed (FDM), for example, on different REs with different comb offsets. Alternatively, the 3 single-port SRS resources can occupy the same RE, for example, differentiated by different cyclic shifts.
[0069] In some embodiments, 3-port SRS transmission is achieved by time division multiplexing (TDM) and / or frequency division multiplexing (FDM) of SRS resources. For example, for 3Tx uplink transmission, 3-port SRS operation can be achieved by one SRS resource in TDM or FDM manner.
[0070] For example, in TDM mode, two OFDM symbols (the two OFDM symbols can be adjacent) can be used to implement 3-port SRS operation, that is, one OFDM symbol is mapped to two ports, and the other OFDM symbol is mapped to one port. Alternatively, three OFDM symbols (the three OFDM symbols can be adjacent) can be used to implement 3-port SRS operation, that is, each OFDM symbol is mapped to one port.
[0071] For another example, in FDM mode, two comb offsets can be used to implement a 3-port SRS operation, i.e., one comb offset is mapped to two ports, and the other comb offset is mapped to one port. Alternatively, three comb offsets can be used to implement a 3-port SRS operation, i.e., each comb offset is mapped to one port.
[0072] In some embodiments, for 3-port non-coherent PUSCH transmission, a 3-port non-coherent precoding matrix is predefined.
[0073] For example, Table 1 shows an example of a 3-port rank-1 precoding matrix.
[0074] Table 1 Precoding matrix W for single layer transmission using 3 antenna ports (for both CP-OFDM and DFT-s-OFDM)
[0075] For another example, Table 2 shows an example of a 3-port rank-2 precoding matrix.
[0076] Table 2 Precoding matrix W for two-layer transmission using 3 antenna ports (for CP-OFDM)
[0077] For another example, Table 3 shows another example of a 2-port rank-3 precoding matrix.
[0078] Table 3 Precoding matrix W for two-layer transmission using 3 antenna ports (for CP-OFDM)
[0079] For another example, Table 4 shows an example of a rank-3 precoding matrix of 3 ports.
[0080] Table 4 Precoding matrix W for three-layer transmission using 3 antenna ports (for CP-OFDM)
[0081] In some embodiments, for 3-port non-coherent PUSCH transmission, a 4-port non-coherent precoding matrix is reused for the 3-port uplink transmission; and one port in the 4-port non-coherent precoding matrix is not used for the 3-port uplink transmission.
[0082] In some embodiments, the one port in the 4-port non-coherent precoding matrix that is not used for the 3-port uplink transmission is the same as the one port in the 4-port SRS resource that is not used for the 3-port uplink transmission.
[0083] For example, the antenna ports not used for 3-port PUSCH transmission are the same as the antenna ports not used for SRS configured / indicated by RRC, MAC-CE, or DCI. For example, for the Transmitted Precoding Matrix Indicator (TPMI), only some precoders can be indicated, where the rows corresponding to the unused antenna ports are all zero.
[0084] For another example, the scaling factors applied to these precoding matrices may be predefined or configured or indicated. For example, the scaling factor is If the indicated precoding matrix is A, the final precoder is determined as W=s×A.
[0085] In some embodiments, in the DCI scheduling the 3-port uplink transmission, field length and / or TPMI indication mapping information (table) for the 3-port uplink transmission is predefined.
[0086] For example, in a DCI scheduling a 3-port PUSCH transmission, the field length and table for TPMI indication (precoding information and number of layers) may be defined for a 3-port non-coherent precoder.
[0087] For example, Table 5 shows an example of TPMI field length depending on the maxRank value considering the 3-port non-coherent pre-coder shown in Table 1, Table 2, and Table 4.
[0088] Table 5 TPMI field length depending on maxRank value
[0089] For another example, Table 6 shows an example of the precoding information with maxRank=1 and the TPMI indication table of the layer number field.
[0090] Table 6 TPMI indication table for 3-port PUSCH transmission with maxRank=1
[0091] For another example, Table 7 shows an example of the precoding information with maxRank=2 and the TPMI indication table of the layer number field.
[0092] Table 7 TPMI indication table for 3-port PUSCH transmission with maxRank=2
[0093] For another example, Table 8 shows an example of the precoding information with maxRank=3 and the TPMI indication table of the layer number field.
[0094] Table 8 TPMI indication table for 3-port PUSCH transmission with maxRank=3
[0095] In some embodiments, for multi-TRP or multi-panel transmission, the DCI for scheduling the 3-port uplink transmission includes two precoding information and number of layers fields. The rank information indicated by the two precoding information and number of layers fields is the same.
[0096] For example, for multi-TRP operation and / or multi-panel transmission operation, the DCI may include two precoding information and number of layers fields. The values of the rank indicated by the two fields may be the same, that is, the rank indicated by the second precoding information and number of layers field is the same as the rank indicated by the first precoding information and number of layers field.
[0097] In some embodiments, for the three-port uplink transmission, TPMI indication mapping information of the first precoding information and layer number field of the two precoding information and layer number fields is predefined.
[0098] For example, for 3-port PUSCH transmission, the TPMI indication table for the first precoding information and number of layers field may be the same as shown in Table 6, Table 7, or Table 8.
[0099] In some embodiments, for the 3-port uplink transmission, a field length of a second precoding information and layer number field in the two precoding information and layer number fields is predefined.
[0100] For example, since the rank information can be obtained from the first precoding information and layer number field, the length of the second precoding information and layer number field can be as shown in Table 9.
[0101] Table 9 Length of the second Precoding information and number of layers field, depending on maxRank value
[0102] In some embodiments, for the three-port uplink transmission, TPMI indication mapping information of the second precoding information and layer number field in the two precoding information and layer number fields is predefined.
[0103] For example, Table 10 shows an example of the second precoding information with maxRank=1 and the TPMI indication table of the layer number field.
[0104] Table 10 TPMI indication table for the second Precoding information and number of layers field with maxRank=1
[0105] For another example, Table 11 shows an example of the second precoding information with maxRank=2 and the TPMI indication table of the layer number field.
[0106] Table 11 TPMI indication table for the second Precoding information and number of layers field with maxRank=2
[0107] For another example, Table 12 shows an example of the second precoding information with maxRank=3 and the TPMI indication table of the layer number field.
[0108] Table 12 TPMI indication table for the second Precoding information and number of layers field with maxRank=3
[0109] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.
[0110] It can be seen from the above embodiment that the terminal device receives configuration information from the network device; wherein the configuration information is used to configure the terminal device for 3-port uplink transmission; and 3 ports are used for uplink transmission according to the configuration information; thereby, the performance and efficiency of uplink transmission can be improved.
[0111] Embodiments of the second aspect
[0112] The embodiment of the present application provides an uplink receiving method, which is described from the perspective of a network device. The embodiment of the second aspect can be combined with the embodiment of the first aspect, and the same contents as those of the embodiment of the first aspect will not be repeated.
[0113] FIG3 is another schematic diagram of an uplink receiving method according to an embodiment of the present application. As shown in FIG3 , the method includes:
[0114] 301, a network device sends configuration information to a terminal device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0115] 302. The network device receives an uplink transmission from the terminal device using port 3 according to the configuration information.
[0116] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.
[0117] It can be seen from the above embodiment that the terminal device receives configuration information from the network device; wherein the configuration information is used to configure the terminal device for 3-port uplink transmission; and 3 ports are used for uplink transmission according to the configuration information; thereby, the performance and efficiency of uplink transmission can be improved.
[0118] Embodiments of the third aspect
[0119] The embodiment of the present application provides an uplink sending device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the same contents as those in the first and second aspects of the embodiment will not be repeated.
[0120] FIG4 is a schematic diagram of an uplink sending device according to an embodiment of the present application. As shown in FIG4 , the uplink sending device 400 according to the embodiment of the present application includes:
[0121] A receiving unit 401 receives configuration information from a network device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0122] The sending unit 402 uses three ports for uplink transmission according to the configuration information.
[0123] In some embodiments, 4-port SRS resources are reused; and one port of the 4-port SRS resources is not used for the 3-port uplink transmission.
[0124] In some embodiments, the one port not used for the three-port uplink transmission is configured through RRC signaling, and / or indicated through MAC-CE, and / or indicated through DCI.
[0125] In some embodiments, the 3-port uplink transmission is scheduled via DCI, and ports not used for the 3-port uplink transmission are indicated via a field added to the DCI.
[0126] In some embodiments, 3-port SRS transmission is achieved by bundling a 2-port SRS resource with a single-port SRS resource.
[0127] In some embodiments, 3-port SRS transmission is achieved by bundling 3 single-port SRS resources.
[0128] In some embodiments, 3-port SRS transmission is achieved by time division multiplexing (TDM) and / or frequency division multiplexing (FDM) of SRS resources.
[0129] In some embodiments, for 3-port non-coherent PUSCH transmission, a 3-port non-coherent precoding matrix is predefined.
[0130] In some embodiments, for 3-port non-coherent PUSCH transmission, a 4-port non-coherent precoding matrix is reused for the 3-port uplink transmission; and one port in the 4-port non-coherent precoding matrix is not used for the 3-port uplink transmission.
[0131] In some embodiments, the one port in the 4-port non-coherent precoding matrix that is not used for the 3-port uplink transmission is the same as the one port in the 4-port SRS resource that is not used for the 3-port uplink transmission.
[0132] In some embodiments, in the DCI scheduling the 3-port uplink transmission, field length and / or TPMI indication mapping information (table) for the 3-port uplink transmission is predefined.
[0133] In some embodiments, for multi-TRP or multi-panel transmission, the DCI for scheduling the 3-port uplink transmission includes two precoding information and number of layers fields.
[0134] In some embodiments, the two precoding information and the rank information indicated by the layer number field are the same.
[0135] In some embodiments, for the three-port uplink transmission, TPMI indication mapping information of the first precoding information and layer number field of the two precoding information and layer number fields is predefined.
[0136] In some embodiments, for the 3-port uplink transmission, a field length of a second precoding information and layer number field in the two precoding information and layer number fields is predefined.
[0137] In some embodiments, for the three-port uplink transmission, TPMI indication mapping information of the second precoding information and layer number field in the two precoding information and layer number fields is predefined.
[0138] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.
[0139] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The uplink sending device 400 may also include other components or modules, and for the specific contents of these components or modules, reference may be made to related technologies.
[0140] In addition, for the sake of simplicity, FIG4 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
[0141] It can be seen from the above embodiment that the terminal device receives configuration information from the network device; wherein the configuration information is used to configure the terminal device for 3-port uplink transmission; and 3 ports are used for uplink transmission according to the configuration information; thereby, the performance and efficiency of uplink transmission can be improved.
[0142] Embodiments of the fourth aspect
[0143] The embodiment of the present application provides an uplink receiving device, which may be, for example, a network device, or one or more components or assemblies configured in the network device, and the contents identical to those in the first to third aspects of the embodiment will not be repeated.
[0144] FIG5 is another schematic diagram of an uplink receiving device according to an embodiment of the present application. As shown in FIG5 , the uplink receiving device 500 includes:
[0145] A sending unit 501 sends configuration information to a terminal device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0146] The receiving unit 502 receives uplink transmission performed by the terminal device using three ports according to the configuration information.
[0147] The above embodiments are merely exemplary of the present invention, but the present invention is not limited thereto. Appropriate modifications may be made based on the above embodiments. For example, the above embodiments may be used alone, or one or more of the above embodiments may be combined.
[0148] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The uplink receiving device 500 may also include other components or modules. For details of these components or modules, reference may be made to related technologies.
[0149] In addition, for simplicity, FIG5 only illustrates the connection relationship or signal path between various components or modules. However, those skilled in the art should be aware that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; this application is not limited to this.
[0150] It can be seen from the above embodiment that the terminal device receives configuration information from the network device; wherein the configuration information is used to configure the terminal device for 3-port uplink transmission; and 3 ports are used for uplink transmission according to the configuration information; thereby, the performance and efficiency of uplink transmission can be improved.
[0151] Embodiments of the fifth aspect
[0152] An embodiment of the present application also provides a communication system, and reference may be made to FIG1 . The contents that are the same as those in the first to fourth aspects of the embodiments will not be repeated.
[0153] In some embodiments, the communication system 100 may include at least:
[0154] A network device that sends configuration information to a terminal device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0155] The terminal device uses 3 ports for uplink transmission according to the configuration information.
[0156] The embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.
[0157] Figure 6 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in Figure 7 , terminal device 600 may include a processor 610 and a memory 620; memory 620 stores data and programs and is coupled to processor 610. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.
[0158] For example, the processor 610 may be configured to execute a program to implement the uplink transmission method as described in the embodiment of the first aspect. For example, the processor 610 may be configured to perform the following control: receiving configuration information from a network device; wherein the configuration information is used to configure the terminal device to perform three-port uplink transmission; and using the three ports for uplink transmission according to the configuration information.
[0159] As shown in Figure 6 , the terminal device 600 may further include: a communication module 630, an input unit 640, a display 650, and a power supply 660. The functions of these components are similar to those in the prior art and are not described in detail here. It is worth noting that the terminal device 600 does not necessarily include all of the components shown in Figure 6 , and the aforementioned components are not essential. Furthermore, the terminal device 600 may also include components not shown in Figure 6 , for which reference may be made to the prior art.
[0160] An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.
[0161] Figure 7 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application. As shown in Figure 7, network device 700 may include a processor 710 (e.g., a central processing unit (CPU)) and a memory 720; memory 720 is coupled to processor 710. Memory 720 may store various data and may also store an information processing program 730, which is executed under the control of processor 710.
[0162] For example, the processor 710 may be configured to execute a program to implement the uplink reception method as described in the embodiment of the second aspect. For example, the processor 710 may be configured to perform the following control: sending configuration information to a terminal device; wherein the configuration information is used to configure the terminal device to perform three-port uplink transmission; and receiving uplink transmission performed by the terminal device using the three ports according to the configuration information.
[0163] In addition, as shown in Figure 7, network device 700 may further include: a transceiver 740 and an antenna 750; wherein, the functions of the above components are similar to those in the prior art and are not described here in detail. It is worth noting that network device 700 does not necessarily include all the components shown in Figure 7; in addition, network device 700 may also include components not shown in Figure 7, and reference may be made to the prior art for details.
[0164] An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program enables the terminal device to execute the uplink sending method described in the embodiment of the first aspect.
[0165] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the uplink sending method described in the embodiment of the first aspect.
[0166] An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the uplink receiving method described in the embodiment of the second aspect.
[0167] An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the uplink receiving method described in the embodiment of the second aspect.
[0168] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.
[0169] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).
[0170] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.
[0171] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
[0172] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.
[0173] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:
[0174] 1. An uplink sending method, comprising:
[0175] The terminal device receives configuration information from the network device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0176] The terminal device uses 3 ports for uplink transmission according to the configuration information.
[0177] 2. An uplink receiving method, comprising:
[0178] The network device sends configuration information to the terminal device; wherein the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and
[0179] The network device receives the uplink transmission performed by the terminal device using 3 ports according to the configuration information.
[0180] 3. A terminal device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the uplink sending method as described in Note 1.
[0181] 4. A network device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the uplink receiving method as described in Note 2.
Claims
1. An uplink transmission device, comprising: a receiving unit that receives configuration information from a network device; wherein the configuration information is used to configure a terminal device for 3-port uplink transmission; and a transmitting unit that performs uplink transmission using 3 ports according to the configuration information.
2. The device according to claim 1, wherein, The SRS resources of 4 ports are reused; and 1 port of the SRS resources of the 4 ports is not used for the 3-port uplink transmission.
3. The device according to claim 2, wherein, The 1 port not used for the 3-port uplink transmission is configured by RRC signaling, and / or indicated by MAC-CE, and / or indicated by DCI.
4. The device according to claim 2, wherein The 3-port uplink transmission is scheduled by DCI, and the port not used for the 3-port uplink transmission is indicated by an added field in the DCI.
5. The device according to claim 1, wherein The SRS transmission of 3 ports is achieved by bundling 2-port SRS resources with single-port SRS resources; or, the SRS transmission of 3 ports is achieved by bundling 3 single-port SRS resources; or, the SRS transmission of 3 ports is achieved by time-division multiplexing and / or frequency-division multiplexing of SRS resources.
6. The device according to claim 1, wherein For non-coherent PUSCH transmission of 3 ports, the non-coherent precoding matrix of 3 ports is predefined.
7. The device according to claim 1, wherein For non-coherent PUSCH transmission of 3 ports, the non-coherent precoding matrix of 4 ports is reused for the 3-port uplink transmission; and 1 port of the non-coherent precoding matrix of the 4 ports is not used for the 3-port uplink transmission; The 1 port of the non-coherent precoding matrix of the 4 ports not used for the 3-port uplink transmission is the same as the 1 port of the SRS resources of the 4 ports not used for the 3-port uplink transmission.
8. The apparatus according to claim 1, wherein In the DCI scheduling the 3-port uplink transmission, the domain length and / or TPMI indication mapping information for the 3-port uplink transmission is predefined.
9. The apparatus according to claim 1, wherein For multi-TRP or multi-panel transmission, the DCI scheduling the 3-port uplink transmission includes two precoding information and layer fields.
10. The apparatus according to claim 9, wherein, The rank information indicated by the two precoding information and layer fields is the same; For the 3-port uplink transmission, the TPMI indication mapping information of the first precoding information and layer field in the two precoding information and layer fields is predefined; and / or For the 3-port uplink transmission, the domain length of the second precoding information and layer field in the two precoding information and layer fields is predefined; and / or For the 3-port uplink transmission, the TPMI indication mapping information of the second precoding information and layer field in the two precoding information and layer fields is predefined.
11. An uplink receiving device, comprising: a transmitting unit that sends configuration information to a terminal device; wherein the configuration information is used to configure the terminal device for 3-port uplink transmission; and a receiving unit that receives the uplink transmission performed by the terminal device using 3 ports according to the configuration information.
12. The apparatus according to claim 11, wherein, The SRS resources of 4 ports are reused; and 1 port of the SRS resources of the 4 ports is not used for the 3-port uplink transmission; One of the ports not used for the 3-port uplink transmission is configured by RRC signaling, and / or indicated by MAC-CE, and / or indicated by DCI.
13. The apparatus according to claim 12, wherein, The 3-port uplink transmission is scheduled by DCI, and the port not used for the 3-port uplink transmission is indicated by a field added in the DCI.
14. The device according to claim 11, wherein The SRS transmission of 3 ports is achieved by bundling 2-port SRS resources with single-port SRS resources; Alternatively, the SRS transmission of 3 ports is achieved by bundling 3 single-port SRS resources; Alternatively, the SRS transmission of 3 ports is achieved by time-division multiplexing and / or frequency-division multiplexing of SRS resources.
15. The device according to claim 11, wherein For the non-coherent PUSCH transmission of 3 ports, the non-coherent precoding matrix of 3 ports is predefined.
16. The apparatus according to claim 11, wherein, For the non-coherent PUSCH transmission of 3 ports, the non-coherent precoding matrix of 4 ports is reused for the 3-port uplink transmission; and one of the ports in the non-coherent precoding matrix of 4 ports is not used for the 3-port uplink transmission; The one port in the non-coherent precoding matrix of 4 ports that is not used for the 3-port uplink transmission is the same as the one port in the 4-port SRS resources that is not used for the 3-port uplink transmission.
17. The apparatus according to claim 11, wherein In the DCI scheduling the 3-port uplink transmission, the field length and / or TPMI indication mapping information (table) for the 3-port uplink transmission is predefined.
18. The apparatus according to claim 11, wherein, For multi-TRP or multi-panel transmission, the DCI scheduling the 3-port uplink transmission includes two precoding information and layer number fields.
19. The device according to claim 18, wherein, The rank information indicated by the two precoding information and layer number fields is the same; For the 3-port uplink transmission, the TPMI indication mapping information of the first precoding information and layer number field in the two precoding information and layer number fields is predefined; and / or For the 3-port uplink transmission, the field length of the second precoding information and layer number field in the two precoding information and layer number fields is predefined; and / or For the 3-port uplink transmission, the TPMI indication mapping information of the second precoding information and layer number field in the two precoding information and layer number fields is predefined.
20. A communication system, comprising: A network device that sends configuration information to a terminal device; wherein, the configuration information is used to configure the terminal device to perform 3-port uplink transmission; and A terminal device that performs uplink transmission using 3 ports according to the configuration information.