Method for transmitting SRS, method for receiving SRS, device, apparatus, medium and product

Abstract

The present disclosure discloses a method for transmitting SRS, a method for receiving SRS, an apparatus, a device, a medium and a product, and belongs to the field of communication. The method comprises: receiving configuration information of SRS resources, wherein the SRS resources comprise 8 antenna ports; mapping the SRS resources to physical resources corresponding to a configured transmission comb; and generating and transmitting SRS of the 8 antenna ports by respectively applying orthogonal cover (OCC) codes to different SRS basic port sequences. The method can support SRS transmission of 8 antenna ports.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication, and in particular, to a method for transmitting SRS, a method for receiving SRS, an apparatus, a device, a medium and a product. BACKGROUND

[0002] In a 5G New Radio system, the uplink Sounding Reference Signal (SRS) can be used to measure and estimate the channel quality of the uplink channel.

[0003] In the process of transmitting the uplink SRS, multiple antenna ports can be configured for a user terminal (UE), and the UE supports the transmission of SRS with a maximum of 4 antenna ports. SUMMARY

[0004] The present disclosure provides a method for transmitting SRS, a method for receiving SRS, an apparatus, a device, a medium and a product. The technical solution is as follows:

[0005] According to one aspect of the present disclosure, a method for transmitting SRS is provided, the method is performed by a terminal, and the method comprises:

[0006] receiving configuration information of SRS resources, the SRS resources comprising 8 antenna ports;

[0007] mapping the SRS resources to physical resources corresponding to a configured transmission comb, generating and transmitting SRS of the 8 antenna ports by respectively applying orthogonal cover (OCC) codes to different SRS basic port sequences.

[0008] According to another aspect of the present disclosure, a method for receiving SRS is provided, the method is performed by a network device, and the method comprises:

[0009] transmitting configuration information of SRS resources, the SRS resources comprising 8 antenna ports;

[0010] simultaneously receiving SRS of the 8 antenna ports generated and transmitted by respectively applying OCC codes to different SRS basic port sequences on physical resources corresponding to a transmission comb.

[0011] According to another aspect of the present disclosure, an apparatus for transmitting SRS is provided, the apparatus comprises:

[0012] a first receiving module configured to receive configuration information of SRS resources, the SRS resources comprising 8 antenna ports;

[0013] The first sending module is configured to map the SRS resource to physical resources corresponding to a configured transmission comb, generate and send SRS of the eight antenna ports by respectively applying orthogonal cover (OCC) codes to different SRS basic port sequences.

[0014] According to another aspect of the embodiments of the present disclosure, a device for receiving SRS is provided, and the device comprises:

[0015] The second sending module is configured to send configuration information of an SRS resource, the SRS resource comprising eight antenna ports.

[0016] The second receiving module is configured to simultaneously receive SRS of the eight antenna ports generated and sent by respectively applying OCC codes to different SRS basic port sequences on physical resources corresponding to a transmission comb.

[0017] According to another aspect of the embodiments of the present disclosure, a terminal is provided, and the terminal comprises:

[0018] A processor;

[0019] A transceiver connected to the processor;

[0020] The processor is configured to load and execute executable instructions to implement the method for sending SRS according to the above aspects.

[0021] According to another aspect of the embodiments of the present disclosure, a network device is provided, and the network device comprises:

[0022] A processor;

[0023] A transceiver connected to the processor;

[0024] The processor is configured to load and execute executable instructions to implement the method for receiving SRS according to the above aspects.

[0025] According to another aspect of the embodiments of the present disclosure, a computer readable storage medium is provided, and the computer readable storage medium stores at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the at least one program, the code set or the instruction set being loaded and executed by a processor to implement the method for sending SRS according to the above aspects, or the method for receiving SRS.

[0026] According to another aspect of the embodiments of the present disclosure, a computer program product (or computer program) is provided, which includes computer instructions stored in a computer readable storage medium; a processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions, so that the computer device executes the method for sending SRS, or the method for receiving SRS according to the various aspects described above.

[0027] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects.

[0028] In the method for sending SRS, the SRS resource is mapped to the physical resource corresponding to the configured transmission comb, and the SRS of 8 antenna ports is generated and sent by respectively applying the OCC code to different SRS basic port sequences. The method is used to support the related function implementation in the case that the terminal uses 8 sending antenna ports, for example, is used to support the codebook-based channel quality detection in the case that the terminal uses 8 sending antenna ports, or is used to support the non-codebook-based channel quality detection in the case that the terminal uses 8 sending antenna ports, or is used to support the channel quality detection in the case of antenna switching when the terminal uses 8 sending antenna ports.

[0029] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0031] Figure 1 is a block diagram of a communication system according to an exemplary embodiment;

[0032] Figure 2 is a flowchart of a method for sending SRS according to an exemplary embodiment;

[0033] Figure 3 is a mapping diagram of SRS resource according to an exemplary embodiment;

[0034] Figure 4 is a flowchart of a method for sending SRS according to another exemplary embodiment;

[0035] Figure 5is a mapping diagram of SRS resources according to another exemplary embodiment;

[0036] Figure 6 is a mapping diagram of SRS resources according to another exemplary embodiment;

[0037] Figure 7 is a mapping diagram of SRS resources according to another exemplary embodiment;

[0038] Figure 8 is a flowchart of a method of transmitting SRS according to another exemplary embodiment;

[0039] Figure 9 is a mapping diagram of SRS resources according to another exemplary embodiment;

[0040] Figure 10 is a mapping diagram of SRS resources according to another exemplary embodiment;

[0041] Figure 11 is a mapping diagram of SRS resources according to another exemplary embodiment;

[0042] Figure 12 is a mapping diagram of SRS resources according to another exemplary embodiment;

[0043] Figure 13 is a flowchart of a method of receiving SRS according to an exemplary embodiment;

[0044] Figure 14 is a block diagram of an apparatus for transmitting SRS according to an exemplary embodiment;

[0045] Figure 15 is a block diagram of an apparatus for receiving SRS according to an exemplary embodiment;

[0046] Figure 16 is a structural diagram of a terminal according to an exemplary embodiment;

[0047] Figure 17 is a structural diagram of an access network device according to an exemplary embodiment. DETAILED DESCRIPTION

[0048] The exemplary embodiments will be described in detail with reference to the attached drawings. The same or similar components are denoted by the same or similar reference numerals throughout the drawings, and repetitive descriptions thereof will be omitted. The following exemplary embodiments described in the detailed description do not represent all aspects of the present disclosure but are merely exemplary. Therefore, the present disclosure is not limited to the exemplary embodiments described herein which are presented merely to explain the principles of the present disclosure, with the best mode presently contemplated.

[0049] Figure 1 A block diagram of a communication system is shown, which can include an access network 12 and user terminals 14, according to an example embodiment of the present disclosure.

[0050] The access network 12 includes a plurality of network devices 120. The network device 120 can be a base station, which is a device deployed in an access network to provide wireless communication functions for user terminals (referred to as "terminals" for short) 14. The base station can include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different wireless access technologies, the names of devices with base station functions can be different, such as eNodeB or eNB in a Long Term Evolution (LTE) system, gNodeB or gNB in a 5G NR (New Radio) system. As communication technology evolves, the description of "base station" can change. For the convenience of description in the embodiments of the present disclosure, the above-mentioned devices providing wireless communication functions for user terminals 14 are collectively referred to as network devices.

[0051] The user terminals 14 can include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of user equipment, mobile stations (MS), terminal devices, and the like. For the convenience of description, the above-mentioned devices are collectively referred to as user terminals. The network devices 120 and the user terminals 14 communicate with each other through certain air interface technologies, such as the Uu interface.

[0052] Exemplarily, there are two communication scenarios between the network devices 120 and the user terminals 14: uplink communication scenario and downlink communication scenario. Among them, uplink communication refers to sending signals to the network device 120; downlink communication refers to sending signals to the user terminal 14.

[0053] The technical solutions of the embodiments of the present disclosure can be applied to various communication systems, for example, a Global System of Mobile Communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an Advanced Long Term Evolution (LTE-A) system, a New Radio (NR) system, an evolved system of the NR system, an LTE-based access to Unlicensed spectrum (LTE-U) system, an NR-U system, a Universal Mobile Telecommunication System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a Wireless Local Area Networks (WLAN), a Wireless Fidelity (WiFi), a next-generation communication system, or other communication systems.

[0054] Generally, a conventional communication system supports a limited number of connections, and is easy to implement. However, with the development of communication technology, a mobile communication system will not only support conventional communication, but also support, for example, Device to Device (D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, and a Vehicle to Everything (V2X) system. The embodiments of the present disclosure can also be applied to these communication systems.

[0055] Figure 2A method flow chart of a method for sending SRS provided by one exemplary embodiment of the present disclosure is shown, which is applied to Figure 1 In the terminal of the communication system shown, the method comprises:

[0056] In step 210, configuration information of SRS resource is received, the SRS resource comprising 8 antenna ports.

[0057] Exemplarily, the terminal receives the configuration information of SRS resource sent by the network device, and the configuration information is used for configuring one SRS resource for the terminal.

[0058] The configured SRS resource comprises 8 antenna ports. That is, the configuration information of SRS resource comprises: the number of antenna ports of SRS The port number P of the 8 antenna ports i =1000+i, i∈{0,1,2,3,4,5,6,7}.

[0059] Or, the configured SRS resource comprises at least two antenna port groups (i.e. N antenna port groups) corresponding to the 8 antenna ports. That is, the configuration information of SRS resource comprises: the number of antenna ports of SRS The number of antenna ports in each antenna port group is 8 / N, N=2 or 4; the port number P of the 8 antenna ports i =1000+i, i∈{0,1,2,3,4,5,6,7}. Or, the configuration information of SRS resource further comprises: the number of antenna ports of SRS The number of antenna ports in each antenna port group is 8 / N, N=2 or 4; the port number of the 8 / N antenna ports in each antenna port group.

[0060] Part or all of the configuration information of SRS can be configured for the terminal by the network device, and / or part or all of the configuration information of SRS can be defined by the protocol. Exemplarily, the above configuration information comprises at least one of the following:

[0061] Transmission comb parameter K TC ;

[0062] Frequency domain offset value parameter

[0063] Bandwidth parameter;

[0064] Cyclic shift parameter

[0065] Number of antenna ports

[0066] Time domain position of transmission comb;

[0067] The sequence length K of the Orthogonal Complementary Code (OCC);

[0068] The number of antenna port groups N, or the number of transmission combs N.

[0069] The transmission comb parameter indicates the comb-like structure of the SRS resources in the frequency domain, meaning that the SRS resources are not mapped onto consecutive subcarriers. The transmission comb parameter is denoted by `comb`, where `comb = K`. TC K TC The value is a positive integer, and the interval between adjacent subcarriers in the SRS resource is (K). TC -1) subcarriers, that is, the interval (K) between adjacent resource elements (REs) in the SRS resource. TC -1) subcarriers, for example, when comb=8, adjacent RE resources in an SRS resource are spaced 7 subcarriers apart. The frequency offset parameter refers to the offset value of the subcarrier occupied by the first RE resource in an SRS resource; the frequency offset parameter is a non-negative integer less than the transmission comb parameter. The bandwidth parameter refers to the bandwidth occupied by the SRS resource. The cyclic shift parameter refers to the number of bits cyclically shifted in the sequence. An antenna port is a logical transmit channel defined by a reference signal; the antenna port is mapped to a physical antenna for signal transmission. The time-domain position of the transmission comb indicates the symbol occupied by the transmission comb in the time slot. The bandwidth parameter refers to the bandwidth of the PRB occupied by the SRS resource.

[0070] For example, the above configuration information may also include: the length of the ZC sequence; the length of the ZC sequence refers to the numerical length of the ZC sequence.

[0071] Step 220: Map the SRS resources to the physical resources corresponding to the configured transmission comb. By applying OCC codes to different SRS basic port sequences, generate and send SRS with 8 antenna ports.

[0072] When measuring uplink channel quality, the terminal maps an SRS resource onto the same physical resource (PR). For example, physical resources refer to continuous carrier resources in the frequency domain, where one physical resource block (PRB) corresponds to 12 consecutive carriers in the frequency domain and one timeslot in the time domain.

[0073] The uplink channel includes, for example, at least one of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH). The terminal can map an SRS resource on a physical resource of the PUCCH and / or the PUSCH.

[0074] The terminal maps, for example, an SRS resource on the same physical resource according to the configuration information, the SRS resource including eight antenna ports; maps the SRS of the eight antenna ports to the physical resource corresponding to the transmission comb, respectively applies an OCC code to different SRS base port sequences, generates the SRS of the eight antenna ports based on at least one base port sequence expansion, and transmits the SRS of the eight antenna ports. For example, the terminal generates eight SRS sequences based on one base port sequence and an OCC code with a code length of eight, carries the SRS of the eight antenna ports through the eight SRS sequences, and transmits the SRS of the eight antenna ports. The OCC8 (i.e., the OCC code with the code length of eight) is shown in Table 1 below, for example.

[0075] Table 1

[0076] m w m (k)] 0 [+1 +1 +1 +1 +1 +1 +1 +1] 1 [+1 +1 +1 +1 -1 -1 -1 -1] 2 [+1 +1 -1 -1 -1 -1 +1 +1] 3 [+1 +1 -1 -1 +1 +1 -1 -1] 4 [+1 -1 -1 +1 +1 -1 -1 +1] 5 [+1 -1 -1 +1 -1 +1 +1 -1] 6 [+1 -1 +1 -1 -1 +1 -1 +1] 7 [+1 -1 +1 -1 +1 -1 +1 -1]

[0077] The base port sequence includes, for example, a ZC sequence.

[0078] The eight antenna ports can be, for example, antenna ports mapped to the same antenna panel or different antenna panels; that is, the eight antenna ports are antenna ports mapped to S antenna panels, S being a positive integer less than or equal to eight. For example, a first antenna port of the eight antenna ports is mapped to a first antenna panel, and a second antenna port of the eight antenna ports is mapped to a second antenna panel.

[0079] The terminal occupies, for example, Q consecutive orthogonal frequency-division multiplexing (OFDM) symbols for one SRS resource, Q = {1, 2, 4}.

[0080] The SRS resource has, for example, at least one of the following functions:

[0081] A codebook;

[0082] Antenna switching;

[0083] A non-codebook.

[0084] The terminal can perform channel quality detection based on the codebook, channel quality detection during antenna switching, or channel quality detection based on a non-codebook.

[0085] For example, the transmission comb parameter K TC The value range of K is {2, 4, 8, 12}. For example, with K... TC For example, if = 2, Figure 3 The terminal maps a transmission comb 301 onto a PRB when the transmission comb parameter is equal to 2; the frequency offset parameter of transmission comb 301 is 1; adjacent subcarriers in transmission comb 301 are spaced by 1 subcarrier, and the subcarriers occupied by transmission comb 301 include subcarrier 1, subcarrier 3, subcarrier 5, subcarrier 7, subcarrier 9, and subcarrier 11; transmission comb 301 is located on symbol 12 of one time slot; the terminal applies OCC codes with a code length of 2 to the four basic port sequences 1 to 4 respectively, expanding them to obtain 8 days. Taking the extension of basic port sequence 1 as an example, if basic port sequence 1 is [X1,X2,X3,X4,X5,X6], multiplying it by OCC1 gives the SRS sequence for port 0: [X1,X2,X3,X4,X5,X6]. Multiplying it by OCC2 gives the SRS sequence for port 4: [(-1)X1,X2,(-1)X3,X4,(-1)X5,X6]. This process continues, applying OCC codes to each of the four basic port sequences to extend the SRS sequences for the eight antenna ports. For example... Figure 3 Each of the two transport combs in the middle (including RE resources) can occupy 1 OFDM symbol.

[0086] For example, the maximum value of the cyclic shift parameter of the transmission comb corresponding to the 8 antenna ports is Cyclic shift parameters configured for 8 antenna ports The corresponding value range is

[0087] Optionally, the maximum number of cyclic shift parameters supported by the transport comb parameters is 2, 4, 8, or 12. The range of values ​​is The terminal then uses all or part of the cyclic shift parameters in the cyclic shift parameters to generate SRS resources.

[0088] For example, for 4 antenna ports, if the maximum number of cyclic shift parameters supported by the transmission comb is 8, then the terminal actually uses 4 out of the 8 cyclic shift parameters to generate SRS resources. As another example, for 8 antenna ports, if the maximum number of cyclic shift parameters supported by the transmission comb is 12, then the terminal uses 8 out of the 12 cyclic shift parameters to generate SRS resources.

[0089] In some embodiments, the transmission comb parameter K TC In the case that the transmission comb parameter K

[0090] In some embodiments, the transmission comb parameter K TC In the case that the transmission comb parameter K

[0091] In summary, the method for sending SRS provided in the embodiments maps SRS resources to physical resources corresponding to a configured transmission comb, generates and sends SRS of 8 antenna ports by respectively applying OCC codes to different SRS basic port sequences, and is used to support related function implementation in the case that a terminal uses 8 sending antenna ports, such as being used to support codebook-based channel quality detection in the case that a terminal uses 8 sending antenna ports, or being used to support non-codebook-based channel quality detection in the case that a terminal uses 8 sending antenna ports, or being used to support channel quality detection during antenna switching in the case that a terminal uses 8 sending antenna ports.

[0092] In some embodiments, SRS of 8 antenna ports can be sent through the same transmission comb, as Figure 4 The step 220 can be implemented by the step 420 as follows:

[0093] The step 420 maps SRS resources to physical resources corresponding to the same transmission comb, respectively applies OCC to basic port sequences corresponding to M antenna ports for expansion, generates MxK=8 antenna port orthogonal sequences, and sends the sequences.

[0094] Wherein, M is a positive integer not greater than 8; K is the sequence length of the OCC code, and the value of K is 2, or 4, or 8. For example, Figure 3As shown, in the case where K is 2, the terminal can map the SRS of 8 antenna ports to the physical resources corresponding to the same transmission comb 301, apply OCC1 and OCC2 to the basic port sequences corresponding to 4 antenna ports respectively for extension, generate orthogonal sequences of 8 antenna ports, and send.

[0095] When sending the SRS on the same transmission comb, the terminal can expand the basic port sequences of 1 or 2 or 4 antenna ports based on the OCC code, to simultaneously send the SRS of 8 antenna ports, and the expansion mode of 8 antenna ports includes at least one of the following:

[0096] First, in the case where K is 2, the terminal applies the OCC code to the basic port sequences corresponding to 4 antenna ports respectively for extension, generates orthogonal sequences of 4x2=8 antenna ports, and sends.

[0097] For example, the basic port sequence of one port is (E1, E2, E3, E4, …, En), and after applying the frequency domain OCC code (i.e. FD-OCC2) with a code length of 2:

[0098] The SRS sequence of one port is (E1*w0(0), E2*w0(1), E3*w0(0), E4*w0(1), …), that is, applying [+1, +1];

[0099] The SRS sequence of another port is (E1*w1(0), E2*w1(1), E3*w1(0), E4*w1(1), …), that is, applying [+1, -1];

[0100] Wherein, FD refers to Frequency Domain. The terminal sends at least two sets of SRS of antenna ports on the same transmission comb.

[0101] For example, the FD-OCC2 is shown in Table 2 as follows:

[0102] Table 2

[0103] m w m (k)] 0 [+1 +1] 1 [+1 -1]

[0104] For example, as Figure 5As shown, the transmission comb parameter of the 1st transmission comb is 3; the transmission comb resource occupies the continuous time slot symbols 10 to 13, in other words, the transmission comb resource occupies 4 OFMD symbols; the frequency domain offset value parameter of the transmission comb is 0. Among the 8 antenna ports, the port 0 and the port 1 are the first set of antenna ports, the port 2 and the port 3 are the second set of antenna ports, the port 4 and the port 5 are the third set of antenna ports, and the port 6 and the port 7 are the fourth set of antenna ports; each set of antenna ports corresponds to a basic port sequence; the basic port sequence 1 of the 1st antenna port in the first set of antenna ports is multiplied by the first OCC code (i.e. OCC2) with a code length of 2 and the second OCC code (i.e. OCC1) respectively, to obtain 2 orthogonal sequences (i.e. SRS sequences) corresponding to the port 0 and the port 1 in the first set of antenna ports. Taking the extension of the basic port sequence 1 as an example, if the basic port sequence 1 is [Y1, Y2, Y3, Y4], the SRS sequence of the port 0 is obtained by multiplying the basic port sequence 1 by the OCC2: [Y1, Y2, Y3, Y4]; the SRS sequence of the port 1 is obtained by multiplying the basic port sequence 1 by the OCC1: [(-1)Y1, Y2, (-1)Y3, Y4], and so on. The OCC code is applied to the basic port sequences 1 to 4 respectively to obtain the SRS sequences of the 8 antenna ports.

[0105] Secondly, the terminal applies the OCC code to the basic port sequences corresponding to the 2 antenna ports respectively to generate the orthogonal sequences of the 2x4=8 antenna ports and sends them.

[0106] For example, Figure 6As shown, the transmission comb parameter of the transmission comb is 6; the transmission comb resource occupies symbol 13, which can also be said that the transmission comb resource occupies one OFMD symbol; the frequency domain offset value parameter of the transmission comb is 5. The terminal multiplies two basic port sequences of two antenna ports with a first OCC code (namely OCC1) with a code length of 4 to obtain two SRS sequences; multiplies the two basic port sequences with a second OCC code (namely OCC2) with a code length of 4 to obtain two SRS sequences; multiplies the two basic port sequences with a third OCC code (namely OCC3) with a code length of 4 to obtain two SRS sequences; and multiplies the two basic port sequences with a fourth OCC code (namely OCC4) with a code length of 4 to obtain two SRS sequences. Taking the extension of the basic port sequence 1 as an example, if the basic port sequence 1 is [Z1, Z2, Z3, Z4], multiplying with OCC1 obtains the SRS sequence of port 1: [Z1, Z2, Z3, Z4]; multiplying with OCC2 obtains the SRS sequence of port 5: [Z1, (-1)Z2, Z3, (-1)Z4]; multiplying with OCC3 obtains the SRS sequence of port 0: [Z1, Z2, (-1)Z3, (-1)Z4]; and multiplying with OCC4 obtains the SRS sequence of port 4: [Z1, (-1)Z2, (-1)Z3, Z4]. Similarly, the OCC code is applied to the two basic port sequences respectively to obtain the SRS sequences of eight antenna ports through extension.

[0107] For example, the frequency domain OCC code (namely FD-OCC4) with a code length of 4 is shown in Table 3 as follows:

[0108] Table 3

[0109] m w m (k)]]> 0 [+1 +1 +1 +1] 1 [+1 -1 +1 -1] 2 [+1 +1 -1 -1] 3 [+1 -1 -1 +1]

[0110] Thirdly, the terminal applies the OCC code to the basic port sequence corresponding to one antenna port to generate 1x8=8 antenna port orthogonal sequences and sends them in the case that K is 8.

[0111] For example, as shown in Table 4, the OCC code with a code length of 4 is as follows: Figure 7As shown, the transmission comb parameter of the transmission comb is 3; the transmission comb resource occupies symbol 13, which can also be said that the transmission comb resource occupies one OFMD symbol; the frequency domain offset value parameter of the transmission comb is 2. The terminal multiplies the basic port sequence based on one antenna port by 8 OCC codes with a code length of 8 to obtain the SRS sequence of 8 antenna ports. For example, if the basic port sequence 1 is [H1, H2, H3, H4, H5, H6, H7, H8], multiplied by OCC1, the SRS sequence of port 0 is obtained: [H1, H2, H3, H4, H5, H6, H7, H8]; multiplied by OCC2, the SRS sequence of port 1 is obtained: [H1, H2, H3, H4, (-1)H5, (-1)H6, (-1)H7, (-1)H8]; multiplied by OCC3, the SRS sequence of port 2 is obtained: [H1, H2, (-1)H3, (-1)H4, (-1)H5, (-1)H6, H7, H8]; multiplied by OCC4, the SRS sequence of port 3 is obtained: [H1, H2, (-1)H3, (-1)H4, H5, H6, (-1)H7, (-1)H8]; multiplied by OCC5, the SRS sequence of port 4 is obtained: [H1, (-1)H2, (-1)H3, H4, H5, (-1)H6, (-1)H7, H8]; multiplied by OCC6, the SRS sequence of port 5 is obtained: [H1, (-1)H2, (-1)H3, H4, (-1)H5, H6, H7, (-1)H8]; multiplied by OCC7, the SRS sequence of port 6 is obtained: [H1, (-1)H2, H3, (-1)H4, (-1)H5, H6, (-1)H7, H8]; and multiplied by OCC8, the SRS sequence of port 7 is obtained: [H1, (-1)H2, H3, (-1)H4, H5, (-1)H6, H7, (-1)H8], which is expanded to obtain the SRS sequence of 8 antenna ports.

[0112] Optionally, the OCC code is a frequency domain OCC code; or the OCC code is a time domain OCC code. That is, the frequency domain OCC code is used on the same transmission comb, as shown in Figure 3 ; or the time domain OCC code is used on the same transmission comb, as shown in Figure 5 .

[0113] Optionally, after the terminal generates the MxK=8 antenna port orthogonal sequences, in the case of M being 1, the generated 8 orthogonal sequences are sequentially mapped to the 8 antenna ports according to the order of applying the OCC code to the basic port sequence; in the case of M being greater than 1, the basic port sequence is sorted in ascending order of the cyclic shift parameter, and then the generated 8 orthogonal sequences are sequentially mapped to the 8 antenna ports according to the order of applying the OCC code to the basic port sequence.

[0114] For example, when M is 1, the eight orthogonal sequences generated by OCC8 are sequentially mapped to ports 0 to 7; when M is 2, the two basic port sequences include: basic port sequence 1 and basic port sequence 2. Based on basic port sequence 1, the four orthogonal sequences generated by OCC4 are sequentially mapped to ports 0, 1, 2 and 3. Based on basic port sequence 2, the four orthogonal sequences generated by OCC4 are sequentially mapped to ports 4, 5, 6 and 7.

[0115] Optionally, some or all of the configuration information of the SRS resources is configured by the network device for the terminal; and / or, some or all of the configuration information of the SRS resources is defined by the protocol. The configuration information of the aforementioned SRS resources includes at least one of the following:

[0116] Transfer comb parameter K TC ;

[0117] Frequency domain offset parameter of the transmission comb The value is less than K TC non-negative integers;

[0118] The temporal location of the transmission comb;

[0119] Number of antenna ports

[0120] Circular shift parameter

[0121] The sequence length K of the OCC code.

[0122] In some embodiments, the aforementioned transmission comb is configured by the network device for the terminal. Therefore, before step 420, the terminal receives the transmission comb parameter K of a transmission comb configured for the SRS resource. TC K TC The set of values ​​for K is {2, 4, 6, 8, 12}, which is K. TC The value can be 2, 4, 6, 8, or 12.

[0123] The terminal also receives a frequency domain offset parameter from the transmission comb. The value is less than K TC A non-negative integer. For example, K. TC When the value is 4, then the configuration is... The value can be 0, 1, 2, or 3.

[0124] The terminal also receives the time-domain position of the transport comb. For example, the configured time-domain position is two consecutive symbols 9 and 10 on the time slot.

[0125] In some embodiments, the terminal further receives one cyclic shift parameter configured for the SRS resource before step 420, and then generates the M basic port sequences corresponding to the M antenna ports based on the one cyclic shift parameter. Alternatively, the terminal receives M cyclic shift parameters configured for the SRS resource, and then generates the M basic port sequences corresponding to the M antenna ports based on the M cyclic shift parameters.

[0126] The 8 antenna ports can be divided into P sets, and P is 2 or 4. Optionally, the P sets of antenna ports are obtained by sequentially dividing the 8 antenna ports according to port numbers; or the P sets of antenna ports are obtained by dividing the 8 antenna ports according to odd and even numbers; or the P sets of antenna ports are obtained by dividing the 8 antenna ports according to a protocol pre-defined combination manner; or the P sets of antenna ports are obtained by sequentially dividing the 8 antenna ports with odd port numbers to obtain at least two first sets of antenna ports, and sequentially dividing the 8 antenna ports with even port numbers to obtain at least two second sets of antenna ports.

[0127] In summary, the method for sending SRS provided by the embodiment supports SRS sending of multiple sets of antenna ports on the same transmission comb, and each set of antenna ports supports expansion to 8 antenna ports.

[0128] In some embodiments, the SRS of the 8 antenna ports can be sent through different transmission combs, such as Figure 8 As described above, step 220 can be implemented by step 720 as follows:

[0129] Step 720: mapping the SRS resource of the N antenna port groups to the physical resources corresponding to the N transmission combs; applying OCC codes to the basic port sequences corresponding to the D antenna ports in the jth antenna port group respectively to generate D x K = 8 / N antenna port orthogonal sequences and send them.

[0130] The 8 antenna ports are divided into N antenna port groups, each antenna port group includes 8 / N antenna ports, and N is 2 or 4; wherein D is an even number not greater than 8 / N, K is the sequence length of the OCC, the value of K is 2 or 4, and j is a positive integer not greater than N. Illustratively, the number of basic ports in each group is D.

[0131] Illustratively, the division manner of the N antenna port groups includes at least one of the following:

[0132] The N antenna port groups are obtained by sequentially grouping the 8 antenna ports according to port numbers.

[0133] Illustratively, one antenna port group includes port 0, port 1, port 2, and port 3, and the other antenna port group includes port 4, port 5, port 6, and port 7.

[0134] • The N antenna port groups are obtained by grouping the 8 antenna ports according to the port number parity.

[0135] For example, one antenna port group includes port 0, port 2, port 4 and port 6, and another antenna port group includes port 1, port 3, port 5 and port 7.

[0136] • The N antenna port groups are obtained by grouping the 8 antenna ports with odd port numbers sequentially to obtain at least two first antenna port groups, and grouping the 8 antenna ports with even port numbers sequentially to obtain at least two second antenna port groups.

[0137] For example, one first antenna port group includes port 1 and port 3, and another first antenna port group includes port 5 and port 7; one second antenna port group includes port 0 and port 2, and another second antenna port group includes port 4 and port 6.

[0138] • The N antenna port groups are obtained by grouping the 8 antenna ports according to a protocol predefined combination manner.

[0139] For example, the protocol defines that port 0, port 1, port 6 and port 7 form one antenna port group, and port 2, port 3, port 4 and port 5 form another antenna port group.

[0140] Each antenna port in each antenna port group can be further divided into P sets, and P is 2 or 4. Optionally, the P sets of antenna ports are obtained by sequentially dividing 8 / N antenna ports according to the port number; or the P sets of antenna ports are obtained by grouping 8 / N antenna ports according to the port number parity; or the P sets of antenna ports are obtained by grouping 8 / N antenna ports according to a protocol predefined combination manner; or the P sets of antenna ports are obtained by grouping 8 / N antenna ports with odd port numbers sequentially to obtain at least two first sets of antenna ports, and grouping 8 / N antenna ports with even port numbers sequentially to obtain at least two second sets of antenna ports.

[0141] For each antenna port in the jth antenna port group of the N antenna port groups, an OCC code can be further used for expansion, as follows:

[0142] First, in the case that 8 antenna ports are divided into 2 antenna port groups, and each antenna port group includes 4 antenna ports, the expansion manner of the 8 antenna ports includes at least one of the following:

[0143] • When K is 2, the basic port sequences corresponding to the two antenna ports in the j-th antenna port group are extended by applying OCC to generate an orthogonal sequence of 2×2=4 antenna ports and then transmitted.

[0144] For example, such as Figure 9 As shown, the transmission comb parameter of the two transmission combs is 4; the transmission comb resource occupies consecutive time slot symbols 10 to 13, for example, the transmission comb resource occupies 4 consecutive OFMD symbols; the frequency domain offset parameter of both transmission combs is 3. The first antenna port group corresponding to one transmission comb includes a first set of antenna ports and a second set of antenna ports, the first set of antenna ports includes port 0 and port 1, and the second set of antenna ports includes port 2 and port 3; the second antenna port group corresponding to the other transmission comb includes a third set of antenna ports and a fourth set of antenna ports, the third set of antenna ports includes port 4 and port 5, and the fourth set of antenna ports includes port 6 and port 7. For the first antenna port group, the terminal multiplies the two basic port sequences of the first set of antenna ports with the first OCC code (i.e., OCC1) and the second OCC code (i.e., OCC2) with a code length of 2 to obtain the orthogonal sequences of the four antenna ports in the first antenna port group; for example, the basic port sequence 1 corresponding to port 0 is [L1,L2]; multiplying it with OCC1, we get the SRS sequence of port 0: [L1,L2]; multiplying it with OCC2, we get the SRS sequence of port 1: [(-1)L1,L2]; the basic port sequence 2 corresponding to port 2 is [L3,L4]; multiplying it with OCC1, we get the SRS sequence of port 2: [L3,L4]; multiplying it with OCC2, we get the SRS sequence of port 3: [(-1)L3,L4]; and so on, the second antenna port group is expanded to obtain the orthogonal sequences of the four antenna ports.

[0145] • When K is 4, the basic port sequence corresponding to one antenna port in the j-th antenna port group is extended by applying OCC to generate an orthogonal sequence of 1×4=4 antenna ports and then transmitted.

[0146] For example, such as Figure 10As shown, the transmission comb parameter of the two transmission combs is 12; the transmission comb resource occupies consecutive time slot symbols 10 to symbol 13, for example, the transmission comb resource occupies 4 consecutive OFMD symbols; the frequency domain offset value parameter of the transmission comb 1001 is 9, and the frequency domain offset value parameter of the transmission comb 1002 is 11. The first antenna port group corresponding to the transmission comb 1002 includes 4 antenna ports: port 0, port 1, port 2, and port 3; the second antenna port group corresponding to the transmission comb 1001 includes 4 antenna ports: port 4, port 5, port 6, and port 7. For the first antenna port group, the terminal multiplies the basic port sequence of 1 antenna port in the first antenna port group by 4 OCC codes with a code length of 4 to expand to obtain the orthogonal sequence of 4 antenna ports. For example, if the basic port sequence 1 of port 0 is [B1, B2, B3, B4], multiplied by OCC1, the SRS sequence of port 0 is obtained: [B1, B2, B3, B4]; multiplied by OCC2, the SRS sequence of port 1 is obtained: [B1, (-1)B2, B3, (-1)B4]; multiplied by OCC3, the SRS sequence of port 2 is obtained: [B1, B2, (-1)B3, (-1)B4]; and multiplied by OCC4, the SRS sequence of port 3 is obtained: [B1, (-1)B2, (-1)B3, B4]. Similarly, the terminal multiplies the basic port sequence of 1 antenna port in the second antenna port group by 4 OCC codes with a code length of 4 to expand to obtain the orthogonal sequence of 4 antenna ports.

[0147] Secondly, in the case where 8 antenna ports are divided into 4 antenna port groups, and each antenna port group includes 2 antenna ports, the expansion mode of the 8 antenna ports includes at least one of the following:

[0148] • In the case where K is 2, the basic port sequence corresponding to 1 antenna port in the jth antenna port group is expanded by applying OCC to generate the orthogonal sequence of 1x2=2 antenna ports and send.

[0149] For example, as Figure 11As shown, the transmission comb parameter of the two transmission combs is 3; the transmission comb resource occupies consecutive time slot symbols 12 and 13, for example, the transmission comb resource occupies two consecutive OFMD symbols; the frequency domain offset parameter of one transmission comb is 0, and the frequency domain offset parameter of the other transmission comb is 2. Transmission comb 901 corresponds to the first antenna port group and the second antenna port group, the first antenna port group includes port 0 and port 4, and the second antenna port group includes port 2 and port 6; transmission comb 902 corresponds to the third antenna port group and the fourth antenna port group, the third antenna port group includes port 1 and port 5, and the fourth antenna port group includes port 3 and port 7. For the first antenna port group, the terminal multiplies the basic port sequence of one antenna port in the first antenna port group with the first OCC code (i.e., OCC1) and the second OCC code (i.e., OCC2) with a code length of 2 to obtain the orthogonal sequence of the two antenna ports in the first antenna port group. For example, if the basic port sequence corresponding to port 0 is [R1,R2,R3,R4], multiplying it with OCC1 gives the SRS sequence of port 0: [R1,R2,R3,R4]; multiplying it with OCC2 gives the SRS sequence of port 4: [R1,(-1)R2,R3,(-1)R4]; and so on, the remaining three antenna port groups are expanded to obtain the orthogonal sequence of 6 antenna ports.

[0150] For example, such as Figure 12 As shown, the transmission comb parameter of the four transmission combs is 12; the transmission comb resource occupies consecutive time slot symbols 10 to 13, for example, the transmission comb resource occupies four consecutive OFMD symbols; the frequency domain offset parameters of the four transmission combs are 5, 7, 9, and 11. One antenna port group corresponding to transmission comb 1101 includes ports 6 and 7; another antenna port group corresponding to transmission comb 1102 includes ports 4 and 5; another antenna port group corresponding to transmission comb 1103 includes ports 3 and 4; and another antenna port group corresponding to transmission comb 1104 includes ports 0 and 1. The terminal multiplies the basic port sequence of one port in one antenna port group with two OCC codes of length 2 to obtain orthogonal sequences of the two antenna ports. For an antenna port group, the basic port sequence of port 0 is [T1,T2,T3,T4]; multiplying it with OCC1, we get the SRS sequence of port 0: [T1,T2,T3,T4]; multiplying it with OCC2, we get the SRS sequence of port 1: [T1,(-1)T2,T3,(-1)T4]; and so on, the remaining three antenna port groups are expanded to obtain the orthogonal sequence of 6 antenna ports.

[0151] Optionally, part or all of the configuration information of the SRS resource is configured by the network device for the terminal; and / or, part or all of the configuration information of the SRS resource is defined by a protocol. The configuration information of the SRS resource includes at least one of the following:

[0152] a transmission comb parameter K of the transmission comb TC ;

[0153] a frequency domain offset value parameter of the transmission comb is a non-negative integer less than K TC .

[0154] a time domain location of the transmission comb

[0155] a number of antenna ports

[0156] a cyclic shift parameter

[0157] a sequence length K of the OCC code

[0158] a number N of antenna port groups, or a number N of transmission combs

[0159] Optionally, the transmission comb parameters K of the transmission combs corresponding to the N antenna port groups are TC the same.

[0160] Optionally, the frequency domain offset value parameters of the N transmission combs are different, and the values of the frequency domain offset value parameters are non-negative integers less than N. For example, Figure 12 the frequency domain offset value parameters of the four transmission combs in the example are 5, 7, 9, and 11 respectively.

[0161] In some embodiments, before performing step 720, the terminal further receives one cyclic shift parameter configured for the SRS resource; and based on the cyclic shift parameter, generates D basic port sequences corresponding to all D antenna ports in each antenna port group.

[0162] Alternatively, before performing step 720, the terminal further receives N cyclic shift parameters configured for the SRS resource; and based on the N cyclic shift parameters, generates D basic port sequences corresponding to all D antenna ports in each antenna port group.

[0163] For example, as Figure 12As shown, the terminal receives one cyclic shift parameter of the four antenna port groups configured for the SRS resource; based on the cyclic shift parameter, a basic port sequence of one antenna port in each antenna port group is generated, obtaining four basic port sequences corresponding to the four antenna port groups; then each basic port sequence is multiplied by two OCC codes with code length of 2, and two orthogonal sequences of two antenna ports are expanded, and finally eight orthogonal sequences corresponding to the four antenna port groups are obtained. Alternatively, the terminal receives four cyclic shift parameters of the four antenna port groups configured for the SRS resource; based on each cyclic shift parameter, a basic port sequence of one antenna port in each antenna port group is generated, obtaining four basic port sequences corresponding to the four antenna port groups; then each basic port sequence is multiplied by two OCC codes with code length of 2, and two orthogonal sequences of two antenna ports are expanded, and finally eight orthogonal sequences corresponding to the four antenna port groups are obtained.

[0164] Optionally, after the terminal generates the orthogonal sequences of D x K = 8 / N antenna ports, in the case that the jth antenna port group corresponds to one basic port sequence, the generated 8 / N orthogonal sequences are sequentially mapped to the 8 / N antenna ports in the jth antenna port group according to the order of applying the OCC code to the basic port sequence; in the case that the jth antenna port group corresponds to D basic port sequences, the basic port sequences are sorted according to the order of the cyclic shift parameters from small to large, and then the generated 8 / N orthogonal sequences are sequentially mapped to the 8 / N antenna ports in the jth antenna port group according to the order of applying the OCC code to the basic port sequence. For example, the 8 antenna ports are divided into two groups: port 0, port 2, port 4 and port 6 are one group, and port 1, port 3, port 5 and port 7 are one group; for the case that one antenna port group corresponds to one basic port sequence, the four orthogonal sequences generated by applying OCC4 are sequentially mapped to port 0, port 2, port 4 and port 6, or the four orthogonal sequences generated by applying OCC4 are sequentially mapped to port 1, port 3, port 5 and port 7; for the case that one antenna port group corresponds to two basic port sequences 1 and basic port sequence 2, based on basic port sequence 1, the four orthogonal sequences generated by applying OCC4 are sequentially mapped to port 0, port 2, port 4 and port 6, and based on basic port sequence 2, the four orthogonal sequences generated by applying OCC4 are sequentially mapped to port 1, port 3, port 5 and port 7.

[0165] In some other embodiments, before performing step 720, the terminal further receives a first frequency domain offset value parameter of the transmission comb corresponding to a first antenna port group configured for the SRS resource, and the first antenna port group is one of the N antenna port groups; based on the first frequency domain offset value parameter, other frequency domain offset value parameters of the transmission comb corresponding to other antenna port groups are calculated, and the other antenna port groups are one of the N antenna port groups except the first antenna port group.

[0166] Alternatively, the terminal also receives the frequency domain offset value parameters of the transmission comb corresponding to the N antenna port groups configured for the SRS resource before performing step 720.

[0167] That is, the network device configures one frequency domain offset value parameter of the transmission comb for the terminal And then calculates other frequency domain offset value parameters of other transmission combs based on the one frequency domain offset value parameter Alternatively, the network device configures a set of frequency domain offset value parameters corresponding to at least two transmission combs for the terminal.

[0168] Exemplarily, the determination principle of the other frequency domain offset value parameters includes any one of the following:

[0169] 1) Adjacent transmission comb principle.

[0170] The frequency domain offset value parameter of each port corresponding to the other transmission comb Is generated according to the following formula:

[0171]

[0172] Or,

[0173]

[0174] That is, the two subcarriers corresponding to each other between the two adjacent transmission combs are adjacent.

[0175] 2) Uniform distribution principle.

[0176] The frequency domain offset value parameter of each port corresponding to the other transmission comb Is generated according to the following formula:

[0177]

[0178] Exemplarily, K of the third transmission comb and the fourth transmission comb in the SRS resource TC = 4, wherein the frequency domain offset value parameter of the third transmission comb is 3, and the frequency domain offset value parameter of the fourth transmission comb is 1; the third transmission comb and the fourth transmission comb both occupy time slot symbols 12 and 13; the interval between adjacent subcarriers in each transmission comb is 3 subcarriers, the subcarriers occupied by the third transmission comb include subcarrier 1, subcarrier 5 and subcarrier 9, and the subcarriers occupied by the fourth transmission comb include subcarrier 3, subcarrier 7 and subcarrier 11; among the 6 subcarriers corresponding to the two transmission combs, the interval between the two adjacent subcarriers is 1 subcarrier, that is, the two transmission combs meet the uniform distribution principle.

[0179] 3) Maximum interval principle.

[0180] The difference between the frequency domain offset value parameters of the connected transmission combs is maximum. For example, K TC In the case of K = 4, the first frequency domain offset value parameter is 0, and the other frequency domain offset value parameters are 3. In this way, the maximum interval principle is met between at least two transmission combs.

[0181] For example, the K TC = 8, where the frequency domain offset value parameter of the fifth transmission comb is 0, and the frequency domain offset value parameter of the sixth transmission comb is 7; the fifth transmission comb and the sixth transmission comb both occupy 4 consecutive time slot symbols 8 to 11; the interval between adjacent subcarriers in each transmission comb is 7 subcarriers, the subcarriers occupied by the fifth transmission comb include subcarrier 0 and subcarrier 8 of the first PRB, and subcarrier 4 of the second PRB, and the subcarriers occupied by the sixth transmission comb include subcarrier 7 of the first PRB, and subcarrier 3 and subcarrier 11 of the second PRB; in the 6 subcarriers corresponding to the two transmission combs, the interval between the corresponding subcarriers is 6 subcarriers, that is, the maximum interval principle is met between the two transmission combs.

[0182] 4) Other predefined principles.

[0183] The other predefined principles can be other ways of determining the other frequency domain offset value parameters defined by the protocol.

[0184] Optionally, the frequency domain positions of the physical resources corresponding to the N transmission combs are different, and the time domain positions are the same; for example, as shown in FIG. 8, the 4 transmission combs are located on subcarriers 5, 7, 9, and 11 of two PRBs. Figure 12

[0185] Optionally, the time domain positions of the physical resources corresponding to the N transmission combs are different, and the frequency domain positions are the same; for example, as shown in FIG. 9, the 2 transmission combs are both located on subcarriers 3, 7, and 11 of the first PRB, and subcarriers 3, 7, and 11 of the second PRB; the transmission comb 801 is located on time slot symbols 10 and 11, and the transmission comb 802 is located on time slot symbols 12 and 13. Figure 9

[0186] For example, as shown in FIG. 10, the 4 transmission combs are located on subcarriers 5, 7, 9, and 11 of two PRBs. Figure 9 ​​As shown in FIG. 8, the transmission comb parameter of the two transmission combs is 4; the transmission comb resource occupies the consecutive time slot symbols 10 to symbol 13, that is, the two transmission comb resources occupy 4 OFMD symbols; the frequency domain offset value parameter of the transmission comb is 3. The 8 antenna ports are divided into two groups: a first antenna port group and a second antenna port group, the first antenna port group includes: port 0, port 1, port 2 and port 3, and the second antenna port group includes: port 4, port 5, port 6 and port 7; the first antenna port group includes a first set of antenna ports and a second set of antenna ports, the first set of antenna ports includes port 0 and port 1, and the second set of antenna ports includes port 2 and port 3; the second antenna port group includes a third set of antenna ports and a fourth set of antenna ports, the third set of antenna ports includes port 4 and port 5, and the fourth set of antenna ports includes port 6 and port 7.

[0187] Optionally, the OCC code is a frequency domain OCC code; or, the OCC code is a time domain OCC code. That is, the frequency domain OCC code is used on different transmission combs, as shown in FIG. 9; or, the time domain OCC code is used on different transmission combs, as shown in FIG. 10. Figure 11 Figure 9

[0188] Optionally, each antenna port group includes K antenna ports, and K is 2 or 4; at least two sets of antenna ports are obtained by sequentially dividing the K antenna ports according to port numbers; or, at least two sets of antenna ports are obtained by sequentially dividing the K antenna ports according to odd and even numbers; or, at least two sets of antenna ports are obtained by dividing the K antenna ports according to a protocol pre-defined combination manner; or, at least two sets of antenna ports are obtained by sequentially dividing the K antenna ports with odd port numbers to obtain at least two first sets of antenna ports, and sequentially dividing the K antenna ports with even port numbers to obtain at least two second sets of antenna ports.

[0189] It should be noted that the division manners of the at least two sets of antenna ports and the at least two antenna port groups can be the same or different.

[0190] In summary, the method for transmitting SRS provided by the embodiment supports SRS transmission of multiple antenna port groups on multiple transmission combs in different frequency domain dimensions or time domain dimensions.

[0191] Figure 13 FIG. 11 shows a method flowchart of a method for receiving SRS provided by one example embodiment of the disclosure, which is applied to a network device of a communication system as shown in FIG. 8, and the method includes the following steps. Figure 1

[0192] Step 1210, transmitting configuration information of SRS resources, the SRS resources including 8 antenna ports.

[0193] ​​​Optionally, the configuration information comprises at least one of the following:

[0194] transmission comb parameter K TC ;

[0195] frequency domain offset value parameter

[0196] bandwidth parameter

[0197] cyclic shift parameter

[0198] number of antenna ports

[0199] time domain position of the transmission comb

[0200] sequence length K of the OCC code

[0201] number N of antenna port groups, or number N of transmission combs

[0202] Optionally, the network device sends, to the terminal, a first frequency domain offset value parameter of a transmission comb corresponding to a first antenna port group, the first antenna port group being one of N antenna port groups; or, sends frequency domain offset value parameters of transmission combs corresponding to N antenna port groups.

[0203] Optionally, the network device sends, to the terminal, N antenna port groups. The N antenna port groups are obtained by sequentially grouping 8 antenna ports according to port numbers; or, the N antenna port groups are obtained by grouping 8 antenna ports according to odd-even grouping; or, the N antenna port groups are obtained by grouping according to a protocol pre-defined grouping manner; or, the N antenna port groups are obtained by sequentially grouping odd-numbered port numbers of 8 antenna ports to obtain at least two first antenna port groups, and sequentially grouping even-numbered port numbers of 8 antenna ports to obtain at least two second antenna port groups.

[0204] The N antenna port groups correspond to N transmission combs; the N configured transmission combs correspond to physical resources with different frequency domain positions and same time domain positions; or, the N configured transmission combs correspond to physical resources with different time domain positions and same frequency domain positions. Optionally, the OCC code is a frequency domain OCC code; or, the OCC code is a time domain OCC code.

[0205] Optionally, the number of the 8 configured antenna ports is and the port numbers P of the 8 antenna ports are i = 1000 + i, i ∈ {0, 1, 2, 3, 4, 5, 6, 7}.

[0206] Optionally, the network device transmits one cyclic shift parameter configured for the SRS resource in the case that the physical resources correspond to one transmission comb; or transmits M cyclic shift parameters configured for the SRS resource, M being a positive integer not greater than 8.

[0207] Optionally, the network device transmits a first frequency domain offset value parameter of a transmission comb corresponding to a first antenna port group configured for the SRS resource in the case that the physical resources correspond to N transmission combs, the first antenna port group being one of the N antenna port groups; or transmits frequency domain offset value parameters of transmission combs corresponding to the N antenna port groups configured for the SRS resource.

[0208] Optionally, the network device transmits one cyclic shift parameter configured for the SRS resource in the case that the physical resources correspond to N transmission combs; or transmits N cyclic shift parameters configured for the SRS resource.

[0209] Optionally, the SRS resource has one of the following functions: codebook; antenna switching; non-codebook.

[0210] Step 1220, simultaneously receiving, on the physical resources corresponding to the transmission comb, SRS of 8 antenna ports generated by respectively applying OCC codes to different SRS base port sequences and transmitted.

[0211] Optionally, in the case that the physical resources correspond to one transmission comb, the SRS of 8 antenna ports includes: M antenna ports corresponding to base port sequences respectively applying OCC to generate MxK=8 antenna port orthogonal sequences; wherein M is a positive integer not greater than 8; K is the sequence length of the OCC code, and K takes 2, or 4, or 8.

[0212] Optionally, in the case that K is 2, the SRS of 8 antenna ports includes: 4 antenna ports corresponding to base port sequences respectively applying OCC codes to generate 4x2=8 antenna port orthogonal sequences; in the case that K is 4, the SRS of 8 antenna ports includes: 2 antenna ports corresponding to base port sequences respectively applying OCC codes to generate 2x4=8 antenna port orthogonal sequences; in the case that K is 8, the SRS of 8 antenna ports includes: 1 antenna port corresponding to a base port sequence applying an OCC code to generate 1x8=8 antenna port orthogonal sequences.

[0213] For example, in the case of transmitting 8 antenna ports on the same transmission comb, the 8 antenna ports can be divided into Q sets of antenna ports, Q being 2 or 4; the Q sets of antenna ports are sequentially divided according to the port numbers; or the Q sets of antenna ports are obtained by performing even-odd division on the 8 antenna ports according to the port numbers; or the Q sets of antenna ports are obtained by dividing the 8 antenna ports according to a protocol pre-defined combination manner; or the Q sets of antenna ports are obtained by sequentially dividing the odd-numbered ports in the 8 antenna ports to obtain at least two first sets of antenna ports, and sequentially dividing the even-numbered ports in the 8 antenna ports to obtain at least two second sets of antenna ports.

[0214] Optionally, the 8 antenna ports are divided into N antenna port groups, each antenna port group including 8 / N antenna ports, N being 2 or 4; in the case that the physical resource is the physical resource corresponding to the N transmission combs, the SRS of the 8 / N antenna ports corresponding to the jth antenna port group includes: the basic port sequences corresponding to the D antenna ports in the jth antenna port group are respectively expanded by applying the OCC code, to generate D×K=8 / N antenna port orthogonal sequences; wherein D is an even number not greater than 8 / N, K is the sequence length of the OCC, K is 2 or 4, and j is a positive integer not greater than N.

[0215] For example, the 8 antenna ports are divided into 2 antenna port groups, each antenna port group including 4 antenna ports; in the case that K is 2, the SRS of the 8 / N antenna ports includes: the basic port sequences corresponding to the 2 antenna ports in the jth antenna port group are respectively expanded by applying the OCC, to generate 2×2=4 antenna port orthogonal sequences; in the case that K is 4, the SRS of the 8 / N antenna ports includes: the basic port sequence corresponding to the 1 antenna port in the jth antenna port group is expanded by applying the OCC, to generate 1×4=4 antenna port orthogonal sequences.

[0216] For example, the 8 antenna ports are divided into 4 antenna port groups, each antenna port group including 2 antenna ports; in the case that K is 2, the SRS of the 8 / N antenna ports includes: the basic port sequence corresponding to the 1 antenna port in the jth antenna port group is expanded by applying the OCC, to generate 1×2=2 antenna port orthogonal sequences.

[0217] Optionally, the transmission comb parameter K of the transmission comb corresponding to the N antenna port groups TC is the same.

[0218] Optionally, the frequency domain offset value parameter of the N transmission combs is different, and the value of the frequency domain offset value parameter is a non-negative integer less than n.

[0219] Optionally, the N antenna port groups are obtained by sequentially grouping the 8 antenna ports according to port numbers; or, the N antenna port groups are obtained by grouping the 8 antenna ports according to odd-even grouping according to port numbers; or, the N antenna port groups are obtained by grouping the 8 antenna ports according to a combination manner predefined by a protocol; or, the N antenna port groups are obtained by sequentially grouping the odd-numbered port numbers in the 8 antenna ports to obtain at least two first antenna port groups, and sequentially grouping the even-numbered port numbers in the 8 antenna ports to obtain at least two second antenna port groups.

[0220] Optionally, in the case of transmitting the SRS of the at least two antenna port groups on the N transmission combs, each antenna port group includes Q antenna ports, and Q is 2 or 4; the at least two sets of antenna ports are obtained by sequentially dividing the Q antenna ports according to port numbers; or, the at least two sets of antenna ports are obtained by dividing the Q antenna ports according to odd-even grouping according to port numbers; or, the at least two sets of antenna ports are obtained by dividing the Q antenna ports according to a combination manner predefined by a protocol; or, the at least two sets of antenna ports are obtained by sequentially dividing the odd-numbered port numbers in the Q antenna ports to obtain at least two first sets of antenna ports, and sequentially dividing the even-numbered port numbers in the Q antenna ports to obtain at least two second sets of antenna ports.

[0221] In summary, the method for receiving SRS provided by the embodiment receives the SRS of the 8 antenna ports generated by respectively applying OCC codes to different SRS basic port sequences on the physical resources corresponding to the transmission comb, and the method is used for supporting the related function implementation in the case of using 8 transmission antenna ports by the terminal, such as being used for supporting the codebook-based channel quality detection in the case of using 8 transmission antenna ports by the terminal, or being used for supporting the non-codebook-based channel quality detection in the case of using 8 transmission antenna ports by the terminal, or being used for supporting the channel quality detection in the case of antenna switching in the case of using 8 transmission antenna ports by the terminal.

[0222] Figure 14 A block diagram of an apparatus for transmitting SRS provided by one exemplary embodiment of the present disclosure is shown, which can be realized by software, hardware or a combination of both to become part or all of a UE, and the apparatus includes:

[0223] The first receiving module 1310 is configured to receive configuration information of SRS resources, and the SRS resources include 8 antenna ports.

[0224] The first sending module 1320 is configured to map the SRS resource to the physical resource corresponding to the configured transmission comb, generate and send the SRS of the 8 antenna ports by respectively applying an orthogonal cover code (OCC) to different basic port sequences of the SRS.

[0225] In some embodiments, the first sending module 1320 is configured to:

[0226] map the SRS resource to the physical resource corresponding to the same transmission comb;

[0227] respectively apply the OCC to the basic port sequences corresponding to the M antenna ports to generate and send MxK=8 orthogonal sequences of the antenna ports;

[0228] wherein the M is a positive integer not greater than 8; the K is the sequence length of the OCC code, and the K is 2, or 4, or 8.

[0229] In some embodiments, the first sending module 1320 is configured to:

[0230] in the case where the K is 2, respectively apply the OCC code to the basic port sequences corresponding to the 4 antenna ports to generate and send 4x2=8 orthogonal sequences of the antenna ports;

[0231] in the case where the K is 4, respectively apply the OCC code to the basic port sequences corresponding to the 2 antenna ports to generate and send 2x4=8 orthogonal sequences of the antenna ports;

[0232] in the case where the K is 8, apply the OCC code to the basic port sequence corresponding to the 1 antenna port to generate and send 1x8=8 orthogonal sequences of the antenna ports.

[0233] In some embodiments, the configuration information of the SRS resource includes at least one of the following:

[0234] a transmission comb parameter K of the transmission comb TC ;

[0235] a frequency domain offset value parameter of the transmission comb the value of the is a non-negative integer less than the K TC ;

[0236] a time domain position of the transmission comb

[0237] a number of antenna ports

[0238] a cyclic shift parameter

[0239] a sequence length K of the OCC code.

[0240] In some embodiments, the first receiving module 1310 is configured to:

[0241] receive one cyclic shift parameter configured for the SRS resource;

[0242] generate M base port sequences corresponding to the M antenna ports based on the cyclic shift parameter.

[0243] In some embodiments, the first receiving module 1310 is configured to:

[0244] receive M cyclic shift parameters configured for the SRS resource;

[0245] generate M base port sequences corresponding to the M antenna ports based on the M cyclic shift parameters.

[0246] In some embodiments, the 8 antenna ports are divided into N antenna port groups, each antenna port group including 8 / N antenna ports, and N is 2 or 4; the first sending module 1320 is configured to:

[0247] map SRS resources of the N antenna port groups to physical resources corresponding to N transmission combs;

[0248] apply the OCC code to the base port sequences corresponding to the D antenna ports in the jth antenna port group respectively to expand, to generate orthogonal sequences of DxK=8 / N antenna ports and send;

[0249] wherein D is an even number not greater than 8 / N, K is a sequence length of the OCC, the K is 2 or 4, and j is a positive integer not greater than N.

[0250] In some embodiments, the 8 antenna ports are divided into 2 antenna port groups, each antenna port group including 4 antenna ports; the first sending module 1320 is configured to:

[0251] in the case where the K is 2, apply the OCC to the base port sequences corresponding to the 2 antenna ports in the jth antenna port group respectively to expand, to generate orthogonal sequences of 2x2=4 antenna ports and send;

[0252] in the case where the K is 4, apply the OCC to the base port sequence corresponding to the 1 antenna port in the jth antenna port group to expand, to generate orthogonal sequences of 1x4=4 antenna ports and send.

[0253] In some embodiments, the 8 antenna ports are divided into 4 antenna port groups, each of which includes 2 antenna ports; the first sending module 1320 is configured to:

[0254] In the case where the K is 2, the OCC is applied to expand the basic port sequence corresponding to 1 antenna port pair in the jth antenna port group, generating a 1x2=2 antenna port orthogonal sequence and sending.

[0255] In some embodiments, the configuration information of the SRS resource includes at least one of the following:

[0256] The transmission comb parameter K of the transmission comb TC ;

[0257] The frequency domain offset value parameter of the transmission comb The The value of the K TC is a non-negative integer less than the K

[0258] The time domain position of the transmission comb

[0259] The number of antenna ports

[0260] The cyclic shift parameter

[0261] The sequence length K of the OCC code

[0262] The number of groups N of the antenna port groups, or the number N of the transmission combs.

[0263] In some embodiments, the first receiving module 1310 is configured to:

[0264] Receive the first frequency domain offset value parameter of the transmission comb corresponding to the first antenna port group configured for the SRS resource, the first antenna port group being one of the N antenna port groups;

[0265] Based on the first frequency domain offset value parameter, calculate other frequency domain offset value parameters of the transmission comb corresponding to other antenna port groups, the other antenna port groups being one group of the N antenna port groups other than the first antenna port group.

[0266] In some embodiments, the first receiving module 1310 is configured to:

[0267] Receive the frequency domain offset value parameters of the transmission comb corresponding to the N antenna port groups configured for the SRS resource.

[0268] In some embodiments, the first receiving module 1310 is configured to:

[0269] receiving one cyclic shift parameter configured for the SRS resource;

[0270] generating D base port sequences corresponding to all D antenna ports in each antenna port group based on the cyclic shift parameter.

[0271] In some embodiments, the first receiving module 1310 is configured to:

[0272] receiving N cyclic shift parameters configured for the SRS resource;

[0273] generating D base port sequences corresponding to all D antenna ports in each antenna port group based on the N cyclic shift parameters.

[0274] In some embodiments, the transmission comb parameters K of the transmission combs corresponding to the N antenna port groups are different. TC same.

[0275] In some embodiments, the physical resources corresponding to the N transmission combs are different in frequency domain location and same in time domain location; or, the physical resources corresponding to the N transmission combs are different in time domain location and same in frequency domain location.

[0276] In some embodiments, the N antenna port groups are obtained by sequentially grouping the 8 antenna ports according to port numbers;

[0277] Alternatively, the N antenna port groups are obtained by grouping the 8 antenna ports according to odd-even grouping according to port numbers;

[0278] Alternatively, the N antenna port groups are obtained by grouping the 8 antenna ports according to a protocol pre-defined grouping manner;

[0279] Alternatively, the N antenna port groups are obtained by sequentially grouping the odd-numbered port numbers in the 8 antenna ports to obtain at least two first antenna port groups, and sequentially grouping the even-numbered port numbers in the 8 antenna ports to obtain at least two second antenna port groups.

[0280] In some embodiments, the first sending module 1320 is configured to:

[0281] After generating the orthogonal sequences of the MxK=8 antenna ports, in the case where the M is 1, the generated 8 orthogonal sequences are sequentially mapped to the 8 antenna ports according to the order of applying the OCC code to the base port sequences.

[0282] After generating the orthogonal sequences of MxK=8 antenna ports, in the case that M is greater than 1, the generated 8 orthogonal sequences are sequentially mapped to the 8 antenna ports in the order of applying the OCC code to the basic port sequences after the basic port sequences are sorted in the order of the cyclic shift parameters from small to large.

[0283] In some embodiments, the first sending module 1320 is configured to:

[0284] After generating the orthogonal sequences of DxK=8 / N antenna ports, in the case that the jth antenna port group corresponds to one basic port sequence, the generated 8 / N orthogonal sequences are sequentially mapped to the 8 / N antenna ports in the jth antenna port group in the order of applying the OCC code to the basic port sequence.

[0285] After generating the orthogonal sequences of DxK=8 / N antenna ports, in the case that the jth antenna port group corresponds to D basic port sequences, the generated 8 / N orthogonal sequences are sequentially mapped to the 8 / N antenna ports in the jth antenna port group in the order of applying the OCC code to the basic port sequences after the basic port sequences are sorted in the order of the cyclic shift parameters from small to large.

[0286] In some embodiments, the OCC code is a frequency domain OCC code; or, the OCC code is a time domain OCC code.

[0287] In some embodiments, the function of the SRS resource is one of the following:

[0288] Codebook;

[0289] Antenna switching;

[0290] Non-codebook.

[0291] Figure 15 A block diagram of an apparatus for receiving SRS is shown, which can be implemented by software, hardware or a combination of both to become part or all of a network device, and the apparatus includes:

[0292] The second sending module 1410 is configured to send configuration information of an SRS resource, and the SRS resource includes 8 antenna ports.

[0293] The second receiving module 1420 is configured to simultaneously receive SRSs of the 8 antenna ports generated and sent by respectively applying OCC codes to different SRS basic port sequences on physical resources corresponding to a transmission comb.

[0294] In some embodiments, in a case where the physical resources are physical resources corresponding to a same transmission comb, the SRS of the 8 antenna ports comprises:

[0295] The basic port sequence corresponding to the M antenna ports is respectively expanded by the OCC, to generate M×K=8 antenna port orthogonal sequences;

[0296] wherein, the M is a positive integer not greater than 8; the K is a sequence length of the OCC code, and the K takes a value of 2, or 4, or 8.

[0297] In some embodiments, in a case where the K is 2, the SRS of the 8 antenna ports comprises: 4 antenna port basic port sequences are respectively expanded by the OCC code, to generate 4×2=8 antenna port orthogonal sequences;

[0298] In a case where the K is 4, the SRS of the 8 antenna ports comprises: 2 antenna port basic port sequences are respectively expanded by the OCC code, to generate 2×4=8 antenna port orthogonal sequences;

[0299] In a case where the K is 8, the SRS of the 8 antenna ports comprises: 1 antenna port basic port sequence is expanded by the OCC code, to generate 1×8=8 antenna port orthogonal sequences.

[0300] In some embodiments, the configuration information of the SRS resource comprises at least one of the following:

[0301] a transmission comb parameter K of the transmission comb TC ;

[0302] a frequency domain offset value parameter of the transmission comb the value of the is a non-negative integer less than the K TC ;

[0303] a time domain location of the transmission comb

[0304] a number of antenna ports

[0305] a cyclic shift parameter

[0306] a sequence length K of the OCC code.

[0307] In some embodiments, the second sending module 1410 is configured to:

[0308] send a cyclic shift parameter configured for the SRS resource;

[0309] or,

[0310] transmit M cyclic shift parameters configured for the SRS resource.

[0311] In some embodiments, the 8 antenna ports are divided into N antenna port groups, each antenna port group including 8 / N antenna ports, N being 2 or 4, j being a positive integer not greater than N;

[0312] In a case where the physical resource is a physical resource corresponding to N transmission combs, the SRS of the 8 / N antenna ports corresponding to the jth antenna port group includes:

[0313] The basic port sequence corresponding to the D antenna ports in the jth antenna port group is respectively expanded by the OCC code, generating D x K = 8 / N antenna port orthogonal sequences;

[0314] wherein D is an even number not greater than 8 / N, and K is the sequence length of the OCC, the value of K being 2 or 4.

[0315] In some embodiments, the 8 antenna ports are divided into 2 antenna port groups, each antenna port group including 4 antenna ports.

[0316] In a case where K is 2, the SRS of the 8 / N antenna ports includes: the basic port sequence corresponding to the 2 antenna ports in the jth antenna port group is respectively expanded by the OCC, generating 2 x 2 = 4 antenna port orthogonal sequences.

[0317] In a case where K is 4, the SRS of the 8 / N antenna ports includes: the basic port sequence corresponding to the 1 antenna port in the jth antenna port group is expanded by the OCC, generating 1 x 4 = 4 antenna port orthogonal sequences.

[0318] In some embodiments, the 8 antenna ports are divided into 4 antenna port groups, each antenna port group including 2 antenna ports.

[0319] In a case where K is 2, the SRS of the 8 / N antenna ports includes: the basic port sequence corresponding to the 1 antenna port in the jth antenna port group is expanded by the OCC, generating 1 x 2 = 2 antenna port orthogonal sequences.

[0320] In some embodiments, the configuration information of the SRS resource includes at least one of the following:

[0321] the transmission comb parameter K of the transmission comb TC ;

[0322] the frequency domain offset value parameter of the transmission comb the value of the K TC a non-negative integer;

[0323] a time domain position of the transmission comb;

[0324] a number of antenna ports

[0325] a cyclic shift parameter

[0326] a sequence length K of the OCC code;

[0327] a number N of the antenna port groups, or a number N of the transmission combs.

[0328] In some embodiments, the second sending module 1410 is configured to:

[0329] send a first frequency domain offset value parameter of a transmission comb corresponding to a first antenna port group configured for the SRS resource, the first antenna port group being one of the N antenna port groups;

[0330] or,

[0331] send frequency domain offset value parameters of the N transmission combs corresponding to the N antenna port groups configured for the SRS resource.

[0332] In some embodiments, the second sending module 1410 is configured to:

[0333] send one cyclic shift parameter configured for the SRS resource;

[0334] or,

[0335] send N cyclic shift parameters configured for the SRS resource.

[0336] In some embodiments, transmission comb parameters K TC of the N transmission combs corresponding to the N antenna port groups are the same.

[0337] In some embodiments, frequency domain positions of the N transmission combs corresponding to the N antenna port groups are different, and time domain positions of the N transmission combs are the same; or, time domain positions of the N transmission combs corresponding to the N antenna port groups are different, and frequency domain positions of the N transmission combs are the same.

[0338] In some embodiments, the OCC code is a frequency domain OCC code; or, the OCC code is a time domain OCC code.

[0339] In some embodiments, the N antenna port groups are obtained by sequentially grouping the 8 antenna ports according to port numbers;

[0340] ​Or, the N antenna port groups are obtained by grouping the 8 antenna ports according to port numbers in a parity manner.

[0341] Or, the N antenna port groups are obtained by grouping the 8 antenna ports according to a protocol pre-defined combination manner.

[0342] Or, the N antenna port groups are obtained by sequentially grouping the odd-numbered ports in the 8 antenna ports to obtain at least two first antenna port groups, and sequentially grouping the even-numbered ports in the 8 antenna ports to obtain at least two second antenna port groups.

[0343] In some embodiments, the function of the SRS resource is one of the following:

[0344] Codebook;

[0345] Antenna switching;

[0346] Non-codebook.

[0347] Figure 16 A structure diagram of a UE provided by one exemplary embodiment of the present disclosure is shown, and the UE includes a processor 111, a receiver 112, a transmitter 113, a memory 114, and a bus 115.

[0348] The processor 111 includes one or more processing cores, and the processor 111 performs various functional applications and information processing by running software programs and modules.

[0349] The receiver 112 and the transmitter 113 can be implemented as a communication component, which can be a communication chip.

[0350] The memory 114 is connected to the processor 111 through the bus 115.

[0351] The memory 114 can be used to store at least one instruction, and the processor 111 is configured to execute the at least one instruction to implement each step in the above-described method embodiment of transmitting an SRS.

[0352] In addition, the memory 114 can be implemented by any type of volatile or nonvolatile storage devices or a combination thereof, including but not limited to: a magnetic disk or a compact disk, an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a static random-access memory (SRAM), a read-only memory (ROM), a magnetic memory, a flash memory, a programmable read-only memory (PROM).

[0353] In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as a memory including instructions, is also provided, which can be executed by a processor of a UE to complete the above-mentioned method for transmitting SRS. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a compact disc read-only memory (CD-ROM), a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0354] A non-transitory computer readable storage medium, when instructions in the non-transitory computer storage medium are executed by a processor of a UE, enables the UE to perform the above-mentioned method for transmitting SRS.

[0355] Figure 17 is a block diagram of a network device 700 according to an exemplary embodiment. The network device 700 can be a base station.

[0356] The network device 700 can include a processor 701, a receiver 702, a transmitter 703, and a memory 704. The receiver 702, the transmitter 703, and the memory 704 are connected to the processor 701 through a bus, respectively.

[0357] The processor 701 includes one or more processing cores, and the processor 701 executes the methods performed by the network device in the method for receiving SRS provided by the embodiments of the present disclosure by running software programs and modules. The memory 704 can be used to store the software programs and modules. Specifically, the memory 704 can store an operating system 7041 and at least one application module 7042 required by a function. The receiver 702 is configured to receive communication data sent by other devices, and the transmitter 703 is configured to send communication data to other devices.

[0358] An example embodiment of the present disclosure further provides a computer readable storage medium, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the computer readable storage medium, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the method for sending SRS or the method for receiving SRS provided by each method embodiment described above.

[0359] An example embodiment of the present disclosure further provides a computer program product, which includes computer instructions stored in a computer readable storage medium; a processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions, so that the computer device executes the method for sending SRS or the method for receiving SRS provided by each method embodiment described above.

[0360] It should be understood that “multiple” mentioned herein refers to two or more. “And / or” describes the association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character “ / ” generally represents that the associated objects before and after it are in an “or” relationship.

[0361] Other embodiments of the present disclosure will be apparent to those skilled in the art upon consideration of the specification and practice of the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses or adaptive changes of the present disclosure that follow the general principles of the present disclosure and include common knowledge or conventional technical means in the art that are not disclosed by the present disclosure. The specification and examples are only considered as exemplary, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0362] It should be understood that the present disclosure is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A method for transmitting a sounding reference signal (SRS), characterized in that, The method is executed by a terminal, and the method includes: Receive configuration information for SRS resources, which include 8 antenna ports; The SRS resources are mapped to the physical resources corresponding to the configured transmission comb. By applying orthogonal overlay OCC codes to different SRS basic port sequences, the SRS of the 8 antenna ports is generated and transmitted. The eight antenna ports are divided into N antenna port groups, and each antenna port group includes 8 / N antenna ports, where N is 2 or 4. The step of mapping the SRS to the physical resources corresponding to the configured transport comb includes: The SRS resources of the N antenna port groups are mapped to the physical resources corresponding to the N transmission combs. The physical resources corresponding to the N transmission combs have different time-domain positions but the same frequency-domain position. The process of generating and transmitting the SRS for the eight antenna ports by applying orthogonal overlay OCC codes to different SRS basic port sequences includes: The basic port sequences corresponding to D antenna ports in the j-th antenna port group are extended by applying the OCC code to generate an orthogonal sequence of D×K=8 / N antenna ports and then transmitted. D is an even number not greater than 8 / N, K is the sequence length of the OCC code, and K takes the value of 2 or 4, and j is a positive integer not greater than N.

2. The method according to claim 1, characterized in that, The eight antenna ports are divided into two antenna port groups, each of which includes four antenna ports. The step of extending the basic port sequences corresponding to the D antenna ports in the j-th antenna port group using the OCC code to generate orthogonal sequences of D×K=8 / N antenna ports and transmitting them includes: When K is 2, the basic port sequences corresponding to the two antenna ports in the j-th antenna port group are extended by applying the OCC to generate an orthogonal sequence of 2×2=4 antenna ports and then transmitted. When K is 4, the basic port sequence corresponding to one antenna port in the j-th antenna port group is extended by applying the OCC to generate an orthogonal sequence of 1×4=4 antenna ports and then transmitted.

3. The method according to claim 1, characterized in that, The eight antenna ports are divided into four antenna port groups, and each antenna port group includes two antenna ports. The step of extending the basic port sequences corresponding to the D antenna ports in the j-th antenna port group using the OCC code to generate orthogonal sequences of D×K=8 / N antenna ports and transmitting them includes: When K is 2, the basic port sequence corresponding to one antenna port in the j-th antenna port group is extended by the OCC to generate an orthogonal sequence of 1×2=2 antenna ports and then transmitted.

4. The method according to claim 1, characterized in that, The configuration information of the SRS resource includes at least one of the following: The transfer comb parameters ; The frequency domain offset parameter of the transmission comb The The value is less than the stated non-negative integers; The time-domain location of the transmission comb; Number of antenna ports =8; Circular shift parameter ; The sequence length K of the OCC code; The number of antenna port groups N, or the number of transmission combs N.

5. The method according to claim 4, characterized in that, The configuration information for receiving SRS resources includes: Receive the first frequency domain offset parameter of the transmission comb corresponding to the first antenna port group configured for the SRS resource, wherein the first antenna port group is one of the N antenna port groups; The method further includes: Based on the first frequency domain offset parameter, calculate the other frequency domain offset parameters of the transmission comb corresponding to the other antenna port groups, wherein the other antenna port groups are a group other than the first antenna port group among the N antenna port groups.

6. The method according to claim 4, characterized in that, The configuration information for receiving SRS resources includes: Receive the frequency domain offset parameter of the transmission comb corresponding to the N antenna port groups configured for the SRS resource.

7. The method according to claim 4, characterized in that, The configuration information for receiving SRS resources includes: Receive a cyclic shift parameter configured for the SRS resource; The method further includes: Based on the cyclic shift parameters, generate D basic port sequences corresponding to all D antenna ports in each antenna port group.

8. The method according to claim 4, characterized in that, The configuration information for receiving SRS resources includes: Receive N cyclic shift parameters configured for the SRS resource; The method further includes: Based on the N cyclic shift parameters, generate D basic port sequences corresponding to all D antenna ports in each antenna port group.

9. The method according to any one of claims 2 to 8, characterized in that, Transmission comb parameters corresponding to the N antenna port groups same.

10. The method according to any one of claims 2 to 8, characterized in that, The N antenna port groups are obtained by grouping the 8 antenna ports in order according to their port numbers; or, The N antenna port groups are obtained by grouping the 8 antenna ports according to their port numbers into odd and even groups; or, The N antenna port groups are obtained by grouping the 8 antenna ports according to a predefined combination method in the protocol; or, The N antenna port groups are obtained by sequentially grouping the odd-numbered port numbers among the 8 antenna ports to obtain at least two first antenna port groups, and by sequentially grouping the even-numbered port numbers among the 8 antenna ports to obtain at least two second antenna port groups.

11. The method according to any one of claims 2 to 8, characterized in that, After generating the orthogonal sequence of D×K=8 / N antenna ports, the process includes: When the j-th antenna port group corresponds to a basic port sequence, the generated 8 / N orthogonal sequences are sequentially mapped to the 8 / N antenna ports in the j-th antenna port group according to the order in which the OCC code is applied to the basic port sequence. When the j-th antenna port group corresponds to D basic port sequences, after sorting the basic port sequences in ascending order of cyclic shift parameters, the generated 8 / N orthogonal sequences are sequentially mapped to the 8 / N antenna ports in the j-th antenna port group according to the order in which the OCC code is applied to the basic port sequences.

12. The method according to any one of claims 1 to 8, characterized in that, OCC codes are frequency domain OCC codes; or, The OCC code is a time-domain OCC code.

13. The method according to any one of claims 1 to 8, characterized in that, The SRS resource has one of the following functions: Codebook; Antenna switching; Non-codebook.

14. A method for receiving SRS, characterized in that, The method is performed by a network device, and the method includes: Send configuration information for the SRS resource, which includes 8 antenna ports; On the physical resources corresponding to the transmission comb, the SRS of the eight antenna ports, which are generated and transmitted by applying OCC codes to different SRS basic port sequences respectively, are simultaneously received. The eight antenna ports are divided into N antenna port groups, and each antenna port group includes 8 / N antenna ports, where N is 2 or 4. When the physical resources are the physical resources corresponding to N transmission combs, the SRS of the 8 / N antenna ports corresponding to the j-th antenna port group includes: The basic port sequences corresponding to the D antenna ports in the j-th antenna port group are extended by the OCC code to generate an orthogonal sequence of D×K=8 / N antenna ports, where D is an even number not greater than 8 / N, K is the sequence length of the OCC code, and K takes the value of 2 or 4, and j is a positive integer not greater than N. Among them, the physical resources corresponding to the N transmission combs have different time-domain locations but the same frequency-domain location.

15. The method according to claim 14, characterized in that, The eight antenna ports are divided into two antenna port groups, each of which includes four antenna ports. When K is 2, the SRS of the 8 / N antenna ports includes: the basic port sequences corresponding to the two antenna ports in the j-th antenna port group are extended by the OCC respectively, generating an orthogonal sequence of 2×2=4 antenna ports; When K is 4, the SRS of the 8 / N antenna ports includes: the basic port sequence corresponding to one antenna port in the j-th antenna port group is extended by the OCC to generate an orthogonal sequence of 1×4=4 antenna ports.

16. The method according to claim 14, characterized in that, The eight antenna ports are divided into four antenna port groups, and each antenna port group includes two antenna ports. When K is 2, the SRS of the 8 / N antenna ports includes: the basic port sequence corresponding to one antenna port in the j-th antenna port group is extended by the OCC to generate an orthogonal sequence of 1×2=2 antenna ports.

17. The method according to claim 14, characterized in that, The configuration information of the SRS resource includes at least one of the following: The transfer comb parameters ; The frequency domain offset parameter of the transmission comb The The value is less than the stated non-negative integers; The time-domain location of the transmission comb; Number of antenna ports =8; Circular shift parameter ; The sequence length K of the OCC code; The number of antenna port groups N, or the number of transmission combs N.

18. The method according to claim 17, characterized in that, The configuration information for sending SRS resources includes: Send the first frequency domain offset parameter of the transmission comb corresponding to the first antenna port group configured for the SRS resource, wherein the first antenna port group is one of the N antenna port groups; or, Send the frequency domain offset parameter of the transmission comb corresponding to the N antenna port groups configured for the SRS resource.

19. The method according to claim 17, characterized in that, The configuration information for sending SRS resources includes: Send a cyclic shift parameter configured for the SRS resource; or, Send N cyclic shift parameters configured for the SRS resource.

20. The method according to any one of claims 15 to 19, characterized in that, Transmission comb parameters corresponding to the N antenna port groups same.

21. The method according to any one of claims 15 to 19, characterized in that, The N antenna port groups are obtained by grouping the 8 antenna ports in order according to their port numbers; or, The N antenna port groups are obtained by grouping the 8 antenna ports according to their port numbers into odd and even groups; or, The N antenna port groups are obtained by grouping the 8 antenna ports according to a predefined combination method in the protocol; or, The N antenna port groups are obtained by sequentially grouping the odd-numbered port numbers among the 8 antenna ports to obtain at least two first antenna port groups, and by sequentially grouping the even-numbered port numbers among the 8 antenna ports to obtain at least two second antenna port groups.

22. The method according to any one of claims 14 to 19, characterized in that, OCC codes are frequency domain OCC codes; or, The OCC code is a time-domain OCC code.

23. The method according to any one of claims 14 to 19, characterized in that, The SRS resource has one of the following functions: Codebook; Antenna switching; Non-codebook.

24. An apparatus for transmitting SRS, characterized in that, The device includes: The first receiving module is configured to receive configuration information of SRS resources, which include 8 antenna ports; The first transmitting module is configured to map the SRS resources to the physical resources corresponding to the configured transmission comb, and generate and transmit the SRS of the eight antenna ports by applying orthogonal overlay OCC codes to different SRS basic port sequences respectively. The eight antenna ports are divided into N antenna port groups, and each antenna port group includes 8 / N antenna ports, where N is 2 or 4. The first receiving module is configured to map the SRS resources of the N antenna port groups to the physical resources corresponding to the N transmission combs, wherein the physical resources corresponding to the N transmission combs have different time-domain positions but the same frequency-domain positions. The first transmitting module is configured to extend the basic port sequences corresponding to the D antenna ports in the j-th antenna port group using the OCC code to generate an orthogonal sequence of D×K=8 / N antenna ports and transmit it, where D is an even number not greater than 8 / N, K is the sequence length of the OCC code, K is 2 or 4, and j is a positive integer not greater than N.

25. An apparatus for receiving SRS, characterized in that, The device includes: The second transmitting module is configured to transmit configuration information of SRS resources, which include 8 antenna ports; The second receiving module is configured to simultaneously receive the SRS of the eight antenna ports, which are generated and transmitted by applying OCC codes to different SRS basic port sequences, on the physical resources corresponding to the transmission comb. The eight antenna ports are divided into N antenna port groups, and each antenna port group includes 8 / N antenna ports, where N is 2 or 4. When the physical resources are the physical resources corresponding to N transmission combs, the SRS of the 8 / N antenna ports corresponding to the j-th antenna port group includes: The basic port sequences corresponding to the D antenna ports in the j-th antenna port group are extended by the OCC code to generate an orthogonal sequence of D×K=8 / N antenna ports, where D is an even number not greater than 8 / N, K is the sequence length of the OCC code, and K takes the value of 2 or 4, and j is a positive integer not greater than N. Among them, the physical resources corresponding to the N transmission combs have different time-domain locations but the same frequency-domain location.

26. A terminal, characterized in that, The terminal includes: processor; A transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the method of sending SRS as described in any one of claims 1 to 13.

27. A network device, characterized in that, The network device includes: processor; A transceiver connected to the processor; The processor is configured to load and execute executable instructions to implement the method of receiving SRS as described in any one of claims 14 to 23.

28. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, wherein the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by a processor to implement the method of transmitting SRS as described in any one of claims 1 to 13, or the method of receiving SRS as described in any one of claims 14 to 23.

29. A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions to cause the computer device to perform the method of transmitting SRS as described in any one of claims 1 to 13, or the method of receiving SRS as described in any one of claims 14 to 23.

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