CN117560776A - Sounding reference signal generation method and device - Google Patents

Sounding reference signal generation method and device Download PDF

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Publication number
CN117560776A
CN117560776A CN202210923447.0A CN202210923447A CN117560776A CN 117560776 A CN117560776 A CN 117560776A CN 202210923447 A CN202210923447 A CN 202210923447A CN 117560776 A CN117560776 A CN 117560776A
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occ
sequence
srs
occ sequence
repetition factor
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张萌
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to CN202210923447.0A priority Critical patent/CN117560776A/en
Priority to PCT/CN2023/110749 priority patent/WO2024027759A1/en
Publication of CN117560776A publication Critical patent/CN117560776A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a sounding reference signal generation method and device, which generate SRS based on TD-OCC sequences, so that interference between SRS can be reduced, and channel estimation by network equipment is facilitated. Wherein the method may comprise: receiving first configuration information, wherein the first configuration information is used for configuring a repetition factor of the SRS in a time domain, and the value of the repetition factor is a positive integer which is more than or equal to 1; determining a TD-OCC sequence matched with the repetition factor, wherein the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; based on the TD-OCC sequence, SRS is generated.

Description

Sounding reference signal generation method and device
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for generating a sounding reference signal.
Background
In a time division duplex (time division duplex, TDD) scenario, a network device may measure a sounding reference signal (sounding reference signal, SRS) transmitted by a User Equipment (UE), obtain uplink channel information, and infer channel state information (channel state information, CSI) of a downlink channel based on reciprocity of the uplink channel and the uplink and downlink channels. In the third generation partnership project (3 rd In Release 18, 3 GPP) standard Release 18, coherent joint transmission (coherent joint transmission, CJT) is introduced, which can support up to 4 network devices simultaneously for downlink transmission for UEs. With the introduction of cqt, more transmission and reception points (transmission reception point, TRP) need to perform channel estimation through SRS, so SRS requirement will beGreatly increasing. This introduces more interference between SRS. Interference between SRS directly affects channel estimation of the network device. Therefore, how to reduce the interference between SRS is a technical problem to be solved.
Disclosure of Invention
The embodiment of the application provides a sounding reference signal generation method and device, which can reduce interference between SRSs, thereby being beneficial to channel estimation of network equipment.
In a first aspect, the present application provides a sounding reference signal generating method, which may include: receiving first configuration information, wherein the first configuration information is used for configuring a repetition factor of the SRS in a time domain, and the value of the repetition factor is a positive integer which is more than or equal to 1; determining a time division orthogonal cover code (time division orthogonal cover code, TD-OCC) sequence matched with the repetition factor, wherein the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; based on the TD-OCC sequence, SRS is generated.
Therefore, the TD-OCC sequence is generated based on the repetition factor, and the SRS is generated based on the TD-OCC sequence, so that the interference between the SRS can be reduced, and the channel estimation of the network equipment is facilitated. And SRS is generated based on the TD-OCC sequence, so that the system capacity can be improved.
In one possible implementation, determining the TD-OCC sequence matching the repetition factor may include: based on the first TD-OCC sequence and/or the second TD-OCC sequence, TD-OCC sequences matching the repetition factor are generated. The sequence length of the first TD-OCC sequence is a first threshold value, the sequence length of the second TD-OCC sequence is a second threshold value, and the first threshold value is smaller than the second threshold value. The first TD-OCC sequence and the second TD-OCC sequence can be existing TD-OCC sequences, and the TD-OCC sequences for generating SRS are generated based on the existing TD-OCC sequences, so that the utilization rate of the existing TD-OCC sequences can be improved, and signaling overhead is saved.
In one possible implementation, the sequence length of the TD-OCC sequence used to generate the SRS is divisible by the first threshold and/or the second threshold, and the sequence length of the TD-OCC sequence used to generate the SRS is equal to the repetition factor. Thus, the existing TD-OCC sequence can be fully utilized.
In one possible implementation, the sequence length of the TD-OCC sequence used to generate the SRS is not divisible by the first threshold and/or the second threshold, and the sequence length of the TD-OCC sequence used to generate the SRS is less than the repetition factor. Thereby facilitating the increase of system capacity.
In one possible implementation manner, the method further includes: a first modification command is received, the first modification command being for indicating modification of the first TD-OCC sequence and/or the second TD-OCC sequence. Thereby contributing to an increase in flexibility of the generated SRS.
In one possible implementation manner, the method further includes: receiving second configuration information, wherein the second configuration information is used for configuring one or more reference TD-OCC sequences for the SRS; determining the TD-OCC sequence matching the repetition factor may include: a TD-OCC sequence matching the repetition factor is generated from the one or more reference TD-OCC sequences. It can be seen that the network device can instruct the terminal device which TD-OCC sequence or sequences to use to generate the TD-OCC sequence for generating the SRS so that the network device can quickly process the received SRS.
In one possible implementation manner, the method further includes: a second modification command is received, the second modification command being for indicating modification of one or more reference TD-OCC sequences. Thereby contributing to an increase in flexibility of the generated SRS.
In one possible implementation manner, the time domain resource of the SRS and the time domain resource of the physical uplink channel each include a first time domain resource, and the method further includes: and discarding the time domain resource of the SRS and transmitting the physical uplink channel on the time domain resource of the physical uplink channel. It can be seen that, in case that the time domain resource of the SRS collides with the time domain resource of the physical uplink channel, the physical uplink channel is preferentially transmitted, so as to avoid the time domain collision.
In one possible implementation manner, the time domain resource of the SRS and the time domain resource of the physical uplink channel each include a first time domain resource, and the method further includes: and determining a conflicted TD-OCC sequence corresponding to the first time domain resource, and discarding SRS symbols corresponding to the conflicted TD-OCC sequence. It can be seen that, when the time domain resource of the SRS collides with the time domain resource of the physical uplink channel, the SRS symbol corresponding to the colliding TD-OCC sequence is discarded, and part of the SRS symbol can be transmitted while avoiding the time domain collision.
In one possible implementation, the repetition factor is one of a set of preset values. The set of preset values may be predefined by the protocol or indicated by a high-level parameter.
In a second aspect, the present application provides a sounding reference signal generating method, which may include: transmitting first configuration information, wherein the first configuration information is used for configuring a repetition factor of the SRS in a time domain, and the value of the repetition factor is a positive integer which is more than or equal to 1; the repetition factor is used for determining a TD-OCC sequence matched with the repetition factor, the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor, and the TD-OCC sequence is used for generating SRS.
Therefore, by sending the first configuration information, the terminal equipment is beneficial to generating the SRS based on the TD-OCC sequence, so that the interference between the SRS can be reduced, and the system capacity can be improved.
In one possible implementation manner, the method further includes: and sending second configuration information, wherein the second configuration information is used for configuring one or more reference TD-OCC sequences for the SRS, so that the terminal equipment generates the TD-OCC sequences matched with the repetition factors according to the one or more reference TD-OCC sequences. It can be seen that the network device can instruct the terminal device which TD-OCC sequence or sequences to use to generate the TD-OCC sequence for generating the SRS so that the network device can quickly process the received SRS.
In one possible implementation manner, the method further includes: a second modification command is sent, the second modification command being for indicating modification of one or more reference TD-OCC sequences. It can be seen that flexibility can be improved by the second modification command.
In one possible implementation, the repetition factor is one of a set of preset values. The set of preset values may be predefined by the protocol or indicated by a high-level parameter.
In a third aspect, the present application provides a communication device. In one implementation, the device includes a processing unit and a communication unit, where the communication unit is configured to receive first configuration information, where the first configuration information is configured to configure a repetition factor of the SRS in a time domain, and the value of the repetition factor is a positive integer greater than or equal to 1; the processing unit is used for determining a TD-OCC sequence matched with the repetition factor, and the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; based on the TD-OCC sequence, SRS is generated. In another implementation manner, the device includes a communication unit, configured to send first configuration information, where the first configuration information is used to configure a repetition factor of the SRS in a time domain, and a value of the repetition factor is a positive integer greater than or equal to 1; the repetition factor is used for determining a TD-OCC sequence matched with the repetition factor, the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor, and the TD-OCC sequence is used for generating SRS.
In a fourth aspect, the present application provides a communications apparatus comprising a processor, a memory and a computer program or instructions stored on the memory, characterised in that the processor executes the computer program or instructions to implement a method as in the first aspect and any one of its possible implementations, or a method as in the second aspect and any one of its possible implementations.
In a fifth aspect, the present application provides a chip. In one implementation, the chip is configured to receive first configuration information, where the first configuration information is configured to configure a repetition factor of the SRS in a time domain, and a value of the repetition factor is a positive integer greater than or equal to 1; the processing unit is used for determining a TD-OCC sequence matched with the repetition factor, and the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; based on the TD-OCC sequence, SRS is generated. In another implementation manner, the chip is used for sending first configuration information, the first configuration information is used for configuring a repetition factor of the SRS in a time domain, and the value of the repetition factor is a positive integer greater than or equal to 1; the repetition factor is used for determining a TD-OCC sequence matched with the repetition factor, the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor, and the TD-OCC sequence is used for generating SRS.
In a sixth aspect, the present application provides a computer readable storage medium having stored therein computer readable instructions which, when run on a computer, cause the communication device to perform the method of the first aspect and any one of the possible implementations thereof, or the method of the second aspect and any one of the possible implementations thereof.
In a seventh aspect, the present application provides a computer program or computer program product comprising code or instructions which, when run on a computer, cause the computer to perform the method as in the first aspect and any one of its possible implementations, or the method as in the second aspect and any one of its possible implementations.
In an eighth aspect, the present application provides a chip module, the chip module includes communication module, power module, storage module and chip, wherein: the power supply module is used for providing electric energy for the chip module; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of the chip module or carrying out communication between the chip module and external equipment; the chip is for performing the method as in the first aspect and any one of its possible implementations, or the method as in the second aspect and any one of its possible implementations.
Drawings
FIG. 1 is a schematic diagram of a system architecture of a communication system to which the present application is applied;
FIG. 2 is an example diagram of an OCC sequence used to generate a CSI-RS;
fig. 3 is a schematic flow chart of an SRS generating method provided in the present application;
fig. 4 is a schematic structural diagram of a communication device provided in the present application;
FIG. 5 is a schematic diagram of another communication device provided herein;
fig. 6 is a schematic structural diagram of a chip module according to an embodiment of the present application.
Detailed Description
In this application, the words "first," "second," and the like are used to distinguish between identical or similar items that have substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
It should be understood that in this application, "at least one" refers to one or more; "plurality" means two or more. In addition, "equal to" may be used in conjunction with "greater than" or "less than" in this application. Under the condition of being equal to and being greater than, adopting a technical scheme of being greater than; under the condition of being used together with 'equal to' and 'less than', the technical scheme of 'less than' is adopted.
First, a system architecture to which the present application relates will be explained.
The present application is applicable to fifth generation (5th generation,5G) systems, which may also be referred to as New Radio (NR) systems; or may be applied to sixth generation (6th generation,6G) systems, or seventh generation (7th generation,7G) systems, or other communication systems in the future; or may also be used in device-to-device (D2D) systems, machine-to-machine (machine to machine, M2M) systems, internet of vehicles (vehicle to everything, V2X), and the like.
The present application may be applied to the system architecture shown in fig. 1. The communication system 10 shown in fig. 1 may include, but is not limited to: network device 110 and terminal device 120. The number and form of the devices in fig. 1 are used as examples, and are not limited to the embodiments of the present application, and for example, a plurality of terminal devices may be included in a practical application.
A terminal device, also known as a UE, a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a user. Such as a handheld device, an in-vehicle device, etc., having a wireless connection function. Currently, examples of some terminal devices are: a mobile phone, a tablet, a notebook, a palm, a mobile internet device (mobile internet device, MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like.
In the present application, the means for implementing the functions of the terminal device may be the terminal device; or a device, such as a chip or a chip module, which can be installed in or matched with the terminal device, capable of supporting the terminal device to implement the function. In the technical solution provided in the present application, the device for implementing the function of the terminal device is an example of the terminal device, and the technical solution provided in the present application is described.
A network device, which may also be referred to as an access network device, refers to a radio access network (radio access network, RAN) node (or device), which accesses a terminal device to a wireless network, which may also be referred to as a base station. Currently, some examples of RAN nodes are: a further evolved Node B (gNB), a transmission and reception point (transmission reception point, TRP), an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), or a wireless fidelity (wireless fidelity, wifi) Access Point (AP), etc. In addition, in one network structure, the network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node. It should be noted that, the centralized unit node and the distributed unit node may also use other names, which is not limited in this application.
In the present application, the means for implementing the functions of the network device may be the network device; or may be a device, such as a chip or a chip module, capable of supporting the network device to implement the function, and the device may be installed in the network device or used in cooperation with the network device. In the technical solution provided in the present application, an example in which a device for implementing a function of a network device is described in the present application.
It may be understood that, the communication system described in the embodiments of the present application is for more clearly describing the technical solution of the embodiments of the present application, and is not limited to the technical solution provided in the embodiments of the present application, and those skilled in the art may know that, with the evolution of the system architecture and the appearance of a new service scenario, the technical solution provided in the embodiments of the present application is applicable to similar technical problems.
Next, related names or terms related to the present application are set forth to facilitate understanding by those skilled in the art.
1. Repetition factor
In the present application, the repetition factor (repetition factor, R) is used to describe a transmission unit of an SRS time domain symbol, that is, transmission is performed in the time domain with several SRS symbols as a transmission unit. For example, a repetition factor of 4 indicates that transmission is performed with 4 SRS symbols as a transmission unit. For another example, a repetition factor of 2 indicates that transmission is performed with 2 SRS symbols as a transmission unit. The repetition factor can be understood as a repetition parameter at the symbol level. It should be noted that this name of the repetition factor is used as an example, and other names describing the nature of the repetition factor may be substituted with the repetition factor.
The repetition factor is typically configured with the number of time domain symbols of the SRS resource, which represents the number of symbols occupied by one SRS resource in the time domain. The repetition factor and the number of time domain symbols of the SRS resource may be configured by a higher layer parameter resource mapping, e.g., the configuration of the higher layer parameter resource mapping may include:
the number of time domain symbols of the SRS resource may be denoted as n_symbol and the repetition factor may be denoted as R. For example, R17 supports (n_symbol, R) = { (8, 1), (8, 2), (8, 4), (8, 8), (12, 1), (12, 2), (12, 4), (12, 6), (12, 12), (10, 1), (10, 2), (10, 5), (10, 10), (14, 1), (14, 2), (14, 7), (14, 14) }.
Exemplary, (n_symbol, R) = (8, 2), where 8 represents that one SRS resource occupies 8 symbols in the time domain; 2 denotes that every 2 symbols are transmitted as a whole, e.g. every 2 symbols are frequency hopped as a whole; then the 8 symbols can be divided into 2 symbols by 4, i.e. 4 transmissions, each for transmitting 2 symbols. The SRS information carried by each of the 8 symbols is the same.
Exemplary, (n_symbol, R) = (12, 1), where 12 represents that one SRS resource occupies 12 symbols in the time domain; 1 denotes that each symbol is transmitted as a whole, for example, each 1 symbol is frequency hopped as a whole; then the 12 symbols can be divided into 1 symbol by 12, i.e. 12 transmissions, each for transmitting 1 symbol. The SRS information carried by each of the 12 symbols is the same.
Currently, the value range of the number of time domain symbols of the SRS resource may be {1,2,4,8,10,12,14}, and the value range of R may be {1,2,4,5,6,7,8,10,12,14}. Note that, the symbol referred to in the present application may be an orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbol, a discrete fourier transform spread OFDM (Discrete Fourier Transform-spread OFDM) symbol, or other symbols, which is not limited in the present application.
2. TD-OCC sequence
The TD-OCC sequence refers to an OCC sequence in the time domain. The TD-OCC sequence may also be described as a time domain OCC sequence.
In one implementation, the TD-OCC sequence may be used to generate a physical uplink control channel (physical uplink control channel, PUCCH).
For example, for PUCCH format (format) 2, the TD-OCC sequence for generating PUCCH may be as shown in table 1 or table 2 below.
Table 1:in this case, the orthogonal sequence w for PUCCH format2 n (i)
n w n (i)
0 [+1 +1]
1 [+1 -1]
Table 2:in this case, the orthogonal sequence w for PUCCH format2 n (i)
n w n (i)
0 [+1 +1 +1 +1]
1 [+1 -1 +1 -1]
2 [+1 +1 -1 -1]
3 [+1 -1 -1 +1]
Wherein n represents an orthogonal sequence index, w n (i) The TD-OCC sequence corresponding to the orthogonal sequence index is represented, and i represents the ith element in the orthogonal sequence index.Indicating that PUCCH format2 occupies 2 symbols in one Subframe (SF), its corresponding TD-OCC sequence may be [ +1+1 [ + ] ]Or [ +1-1]。/>Indicating that PUCCH format2 occupies 4 symbols in one subframe SF, its corresponding TD-OCC sequence may be [ +1+1+1+1 ]]Or [ +1-1+1-1]Or [ +1+1-1]Or [ +1-1-1+1 ]]。
For another example, for PUCCH format4 and interleaved mapped PUCCH format3, the TD-OCC sequence used to generate PUCCH may be as shown in table 3 or table 4 below.
Table 3:in this case, the orthogonal sequence w for PUCCH format4 and PUCCH format3 of the interlace map n (i)
n w n (i)
0 [+1 +1]
1 [+1 -1]
Table 4:in this case, the orthogonal sequence w for PUCCH format4 and PUCCH format3 of the interlace map n (i)
n w n (i)
0 [+1 +1 +1 +1]
1 [+1 -j +1 +j]
2 [+1 -1 +1 -1]
3 [+1 +j -1 -j]
Wherein,PUCCH format3 representing PUCCH format4 or interleaving map occupies 2 symbols in one SF, and its corresponding TD-OCC sequence may be [ +1+1]Or [ +1-1]。/>PUCCH format3 representing PUCCH format4 or interleaving map occupies 4 symbols in one subframe SF, and its corresponding TD-OCC sequence may be [ +1+1+1+1]Or [ +1-j+1+j]Or [ +1-1+1-1]Or [ +1+j-1-j]。
In another implementation, the TD-OCC sequence may be used to generate a physical uplink shared channel (physical uplink shared channel, PUSCH) modem reference signal (demodulation reference signal, DM-RS). For example, the TD-OCC sequence used to generate PUSCH DM-RS can be as shown in Table 5 below.
Table 5: parameters for PUSCH DM-RS type 1
Wherein w is f (k') represents a frequency domain OCC sequence, w t (l') represents a TD-OCC sequence. CDM denotes code division multiplexing (code division multiplexing), and a index of CDM group denotes λ.
In yet another implementation, the TD-OCC sequence may be used to generate a physical downlink shared channel (physical downlink shared channel, PDSCH) DM-RS. For example, the TD-OCC sequence used to generate PDSCH DM-RS may be as shown in Table 6 below.
Table 6: parameters for PDSCH DM-RS type 1
Wherein w is f (k') represents a frequency domain OCC sequence, w t (l') represents a TD-OCC sequence.
In yet another implementation, a TD-OCC sequence may be used for a channel state information reference signal (channel state information-reference signal, CSI-RS). For example, for CDM type CDM4 (FD 2, TD 2), the TD-OCC sequence for generating CSI-RS may be as shown in table 7 below; for CDM type CDM8 (FD 2, TD 4), the TD-OCC sequence for generating CSI-RS may be as shown in table 8 below.
Table 7: frequency domain sequence w of CDM4 (FD 2, TD 2) f (k') and time domain sequence w t (l')
Index [w f (0) w f (1)] [w t (0) w t (1)]
0 [+1 +1] [+1 +1]
1 [+1 -1] [+1 +1]
2 [+1 +1] [+1 -1]
3 [+1 -1] [+1 -1]
Table 8: frequency domain sequence w of CDM4 (FD 2, TD 4) f (k') and time domain sequence w t (l')
Index [w f (0) w f (1)] [w t (0) w t (1) w t (2) w t (3)]
0 [+1 +1] [+1 +1 +1 +1]
1 [+1 -1] [+1 +1 +1 +1]
2 [+1 +1] [+1 -1 +1 -1]
3 [+1 -1] [+1 -1 +1 -1]
4 [+1 +1] [+1 +1 -1 -1]
5 [+1 -1] [+1 +1 -1 -1]
6 [+1 +1] [+1 -1 -1 -1]
7 [+1 -1] [+1 -1 -1 -1]
For example, see an example diagram of an OCC sequence for generating CSI-RS shown in fig. 2. Fig. 2 illustrates that 2 Resource Elements (REs) are occupied in the frequency domain and 2 symbols are occupied in the time domain, taking CDM4 (FD 2, TD 2) as an example. The four antenna ports 3000 to 3003 occupy the same time-frequency resource. The CSI-RSs transmitted on the four antenna ports are multiplied by different OCC sequences to realize orthogonality among the CSI-RSs, and 4 CSI-RSs are transmitted on the same time-frequency resource, and the base sequences of the 4 CSI-RSs can be the same or different. Different CSI-RSs are generated on the same time-frequency resource by adopting different OCC sequences, so that the system capacity can be improved. Note that the OCC sequence in fig. 2 is composed of a frequency domain OCC sequence and a time-frequency OCC sequence.
In order to reduce interference between SRS, this may be achieved by enhancing orthogonality between SRS. The orthogonality between SRS is improved, which can be realized by generating SRS through TD-OCC sequence. Therefore, the SRS generation method and device can reduce interference between SRS, so that channel estimation by network equipment is facilitated.
The SRS generation method provided in the present application is explained below.
Please refer to fig. 3, which is a schematic flow chart of the SRS generating method provided in the present application, the flow chart specifically includes the following steps:
s301, the network device sends first configuration information to the terminal device. Correspondingly, the terminal device receives the first configuration information from the network device.
The first configuration information is used for configuring a repetition factor of the SRS in a time domain, and the value of the repetition factor is a positive integer which is greater than or equal to 1. The method and the device can be suitable for the condition that the value of the repetition factor is larger than 1. Wherein the value of the repetition factor is one of the preset value sets. The preset value range may be predefined by the protocol. For example, the default value set {1,2,4,5,6,7,8,10,12,14}, as the standard evolves, the default value set may change (e.g., increase some values or decrease some values). For convenience of description, the repetition factor will be abbreviated as R hereinafter.
Optionally, the first configuration information may further include TD-OCC information adopted by the SRS resource. The TD-OCC information may include one or more TD-OCC sequence index numbers, or the TD-OCC information is used to configure length information of the TD-OCC sequence, or the TD-OCC information is used to configure generation information of the TD-OCC sequence.
Optionally, the first configuration information may further include activation and/or deactivation indication information of the TD-OCC function of the SRS. When the TD-OCC function of the SRS is activated, the TD-OCC information may be associated with R at the same time. Namely, when the first configuration information configures R, the TD-OCC information associated with the R can be found implicitly. The TD-OCC information may include one or more OCC sequence index numbers, or the TD-OCC information is used to configure length information of the TD-OCC sequence, or the TD-OCC information is used to configure generation information of the TD-OCC sequence. The terminal device may also report to the network device whether the terminal device supports the TD-OCC capability of the SRS. The terminal device supports the TD-OCC capability of the SRS, indicating that the terminal device may generate and/or use the TD-OCC sequence of the SRS, the first configuration information may include or implicitly indicate the TD-OCC information. The terminal device does not support the TD-OCC capability of the SRS, indicating that the terminal device cannot generate and/or use the TD-OCC sequence of the SRS, the first configuration information does not contain or implicitly indicate the TD-OCC information.
Optionally, the first configuration information may further include indication information, where the indication information is used to indicate the terminal device to activate or deactivate the first capability, where the first capability refers to that TD-OCCs with different sequence lengths can be used simultaneously within 1 SRS resource. In other words, the first capability refers to the ability to use TD-OCC sequences of different sequence lengths simultaneously within 1 SRS resource. The terminal device may also report to the network device whether itself supports the first capability.
The first configuration information may be radio resource control (radio resource control, RRC) signaling.
S302, the terminal equipment determines a TD-OCC sequence matched with the repetition factor, and the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor.
The terminal device may determine a TD-OCC sequence matched with R in the following manner 1, manner 2, or manner 3, where the sequence length of the TD-OCC sequence is less than or equal to the value of R.
Reference to SRS symbols in this application refers to symbols used for transmitting SRS, where the symbols may be OFDM symbols, DFT-s-OFDM symbols, or other symbols, without limitation.
In mode 1, the terminal device generates a TD-OCC sequence matching R based on the first TD-OCC sequence and/or the second TD-OCC sequence.
The sequence length of the first TD-OCC sequence is a first threshold value, the sequence length of the second TD-OCC sequence is a second threshold value, and the first threshold value is smaller than the second threshold value. For example, the first threshold is 2 and the second threshold is 4. As can be seen from tables 1 to 8 above, the sequence length of the TD-OCC sequence is typically 2 or 4. The present application takes the sequence length of the first TD-OCC sequence as 2, the sequence length of the second TD-OCC sequence as 4 as an example, i.e. the first threshold is 2, and the second threshold is 4 as an example.
Optionally, for the case that the value of R is even, the sequence length of the TD-OCC sequence matching R is equal to the value of R, for example r=6, and the TD-OCC sequence matching R consists of a first TD-OCC sequence and a second TD-OCC sequence. For the case where the value of R is odd, the sequence length of the TD-OCC sequence matching R is smaller than the value of R, for example, r=5, and the TD-OCC sequence matching R consists of one second TD-OCC sequence.
Optionally, the sequence length of the TD-OCC sequence matching R can be divided by 2 and/or 4, and the sequence length of the TD-OCC sequence matching R is equal to the value of R. For example, r=6, can be divided by 2, and the TD-OCC sequence matching R consists of one first TD-OCC sequence and one second TD-OCC sequence. The sequence length of the TD-OCC sequence matched with R cannot be divided by 2 and/or 4, and the sequence length of the TD-OCC sequence matched with R is smaller than the value of R. For example, r=7, not divisible by 2 and/or 4, and the TD-OCC sequence matching R consists of one first TD-OCC sequence and one second TD-OCC sequence.
Alternatively, taking the case that the sequence length of the TD-OCC sequence matched with r=7 is 2, the remainder of dividing 7 by 2 is 1, and at this time, the TD-OCC sequence matched with R is 3 TD-OCC sequences having a sequence length of 2. Wherein the 3 TD-OCC sequences of sequence length 2 may be the same TD-OCC sequence. Of the 7 SRS symbols for r=7, 1 SRS symbol is not multiplied by the TD-OCC sequence, and there are 3 groups of 2 SRS symbols multiplied by the TD-OCC sequence of sequence length 2. Alternatively, the 1 SRS symbol may be the 1 SRS symbol that is the last in time of 7 SRS symbols or the 1 SRS symbol that is the first in time of 7 SRS symbols.
Alternatively, taking the example that the sequence length of the TD-OCC sequence matched with r=7 is 4, the remainder of dividing 7 by 4 is 3, and at this time, the TD-OCC sequence matched with R is 1 TD-OCC sequence with the sequence length of 4. It means that 3 SRS symbols among 7 SRS symbols corresponding to r=7 are not multiplied by the TD-OCC sequence, but 4 SRS symbols are multiplied by the TD-OCC sequence with the sequence length of 4. Alternatively, the 3 SRS symbols may be three SRS symbols in which 7 SRS symbols are temporally rearmost or three SRS symbols in which 7 SRS symbols are temporally frontmost.
Alternatively, taking the case that the sequence length of the TD-OCC sequence matched with r=7 is 4 and 2, the remainder of 7 divided by 4 is 3, and the remainder of 3 divided by 2 is 1, at this time, the TD-OCC sequence matched with R is 1 TD-OCC sequence of sequence length 4 and 1 TD-OCC sequence of sequence length 2. It means that 1 SRS symbol out of 7 SRS symbols corresponding to r=7 is not multiplied by the TD-OCC sequence, but there are 4 SRS symbols multiplied by the TD-OCC sequence with the sequence length of 4 and there are 2 SRS symbols multiplied by the TD-OCC sequence with the sequence length of 2. Alternatively, the 1 SRS symbol may be the 1 SRS symbol that is the last in time of 7 SRS symbols or the 1 SRS symbol that is the first in time of 7 SRS symbols.
Alternatively, describing in a formula, when the sequence length of the TD-OCC sequence matched with R is M, the quotient of R divided by M is denoted as X, and the remainder is denoted as Y. Then, it indicates that each of the X groups of M SRS symbols is multiplied by or associated with a TD-OCC sequence having a sequence length of M, and that the other Y SRS symbols may not perform TD-OCC operation. The TD-OCC sequences adopted by the X groups of M SRS symbols can be the same. Alternatively, the Y SRS symbols may be the Y SRS symbols that are the R SRS symbols that are the last in time or the Y SRS symbols that are the R SRS symbols that are the first in time.
Alternatively, describing in a formula, when the sequence length of the TD-OCC sequence matched with R is M and N (M > N), the quotient of dividing R by M is denoted as X1, the remainder is denoted as Y1, the quotient of dividing Y1 by N is denoted as X3, and the remainder is denoted as Y2, then it means that one of the R SRS symbols has a TD-OCC sequence with the sequence length M multiplied or associated by each of the X1 group of M SRS symbols, and the other has a TD-OCC sequence with the sequence length N multiplied or associated by each of the X3 group of N SRS symbols, and optionally there may be Y2 SRS symbols not multiplied by the TD-OCC sequence. The TD-OCC sequences used by the M SRS symbols in the X1 group may be the same, and/or the TD-OCC sequences used by the N SRS symbols in the X3 group may be the same. Alternatively, the Y2 SRS symbols may be Y2 SRS symbols in which R SRS symbols are temporally rearmost or Y2 SRS symbols in which R SRS symbols are temporally frontmost. Wherein, from time point of view, the X1 group of M SRS symbols may precede or follow the X3 group of N SRS symbols.
Illustratively, based on mode 1, taking a preset value set {1,2,4,5,6,7,8,10,12,14} of R as an example, a TD-OCC sequence matching R is described.
For r=2:
the TD-OCC sequence that matches R may be the 1 first TD-OCC sequence. The first TD-OCC sequence in this application may be, but is not limited to: a TD-OCC sequence with a sequence length of 2 for generating PUCCH, a TD-OCC sequence with a sequence length of 2 for generating DM-RS (PUSCH DM-RS or PDSCH DM-RS), a TD-OCC sequence with a sequence length of 2 for generating CSI-RS, or other TD-OCC sequences with a sequence length of 2. For example, the terminal device may selectOrthogonal sequence w for generating PUCCH n (i) As a first TD-OCC sequence; or select to be->Orthogonal sequence w for generating PUCCH n (i) As a means ofA first TD-OCC sequence; or selecting w to be used for generating PUSCH DM-RS t (l') as a first TD-OCC sequence; or select [ w ] to be used for generating CSI-RS t (0) w t (1)]As a first TD-OCC sequence. For another example, the terminal device selects [ +1+1 ]]Or [ +1-1]May be predefined by the protocol or configured by the base station through higher layer signaling.
For r=4:
(1) The TD-OCC sequence that matches R may be 1 second TD-OCC sequence. The second TD-OCC sequence in this application may be, but is not limited to: a TD-OCC sequence with a sequence length of 4 for generating PUCCH, a TD-OCC sequence with a sequence length of 4 for generating DM-RS (PUSCH DM-RS or PDSCH DM-RS), a TD-OCC sequence with a sequence length of 4 for generating CSI-RS, or other TD-OCC sequences with a sequence length of 4. For example, the terminal device may select any one w in table 2 n (i) Or w in Table 4 n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]As a second TD-OCC sequence.
(2) The TD-OCC sequences matched to R may also be a combination of 2 first TD-OCC sequences, which 2 first TD-OCC sequences may be identical (e.g., may increase gain) or non-identical, e.g., 1 is [ +1+1 ], and 1 is [ +1-1]; or 2 are [ +1-1]; or 2 are [ +1+1 ].
For r=5:
(1) The TD-OCC sequence matching R may be 1 second TD-OCC sequence, which may be, for example, any one of w in Table 2 n (i) Or w in Table 4 n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]. Optionally, for the case that R cannot be divided by the second TD-OCC sequence, the SRS symbol corresponding to the remainder may be the last SRS symbol or the forefront SRS symbol in time corresponding to R, and the SRS symbol corresponding to the remainder may not adopt TD-OCC operation.
(2) The TD-OCC sequences matched to R may also be a combination of 2 first TD-OCC sequences, which 2 first TD-OCC sequences may be identical (e.g., may increase gain) or non-identical, e.g., 1 is [ +1+1 ], and 1 is [ +1-1]; or 2 are [ +1-1]; or 2 are [ +1+1 ]. Optionally, for the case that R cannot be divided by the second TD-OCC sequence, the SRS symbol corresponding to the remainder may be the last SRS symbol or the forefront SRS symbol in time corresponding to R, and the SRS symbol corresponding to the remainder may not adopt TD-OCC operation.
For r=6:
(1) The TD-OCC sequence matching R may be a combination of 1 first TD-OCC sequence +1 second TD-OCC sequence, i.e. 1 first TD-OCC sequence is preceded and 1 second TD-OCC sequence is followed by the first TD-OCC sequence. The first TD-OCC sequence may be [ +1+1 ]]Or [ +1-1]The second TD-OCC sequence may be, for example, any one of w in Table 2 n (i) Or w in Table 4 n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]. For example, the first TD-OCC sequence is [ +1+1 ]]The second TD-OCC sequence is [ +1+1-1]Then the TD-OCC sequence matching R is [ +1+1+1+1-1]. The SRS symbol corresponding to the second TD-OCC sequence may be preceding in time, and the SRS symbol corresponding to the first TD-OCC sequence may be following in time; or the SRS symbol corresponding to the first TD-OCC sequence may be before, and the SRS symbol corresponding to the second TD-OCC sequence may be after.
(2) The TD-OCC sequences matched to R may also be a combination of 3 first TD-OCC sequences, which 3 first TD-OCC sequences may all be the same (e.g., may increase gain) or partially different (e.g., the first 2 first TD-OCC sequences are the same) or adjacent 2 are all different, e.g., 1 st is [ +1+1 ], second is [ +1-1 ], third is [ +1+1 ]; or 3 are [ +1-1 ]; or 3 are [ +1+1 ]; or 1 st is [ +1+1 ], second is [ +1+1 ], and third is [ +1-1 ]; etc.
For r=7:
(1) The TD-OCC sequences matching R may be a combination of 1 first TD-OCC sequence +1 second TD-OCC sequence. The first TD-OCC sequence may be [ +1+1 ]]Or [ +1-1]The second TD-OCC sequence may be, for example, any one of w in Table 2 n (i) Or any one of Table 4w n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]. For example, the first TD-OCC sequence is [ +1+1 ]]The second TD-OCC sequence is [ +1+1-1]Then the TD-OCC sequence matching R is [ +1+1+1+1-1]. The SRS symbol corresponding to the second TD-OCC sequence may be preceding in time, and the SRS symbol corresponding to the first TD-OCC sequence may be following in time; or the SRS symbol corresponding to the first TD-OCC sequence may be before, and the SRS symbol corresponding to the second TD-OCC sequence may be after.
(2) The TD-OCC sequences matched to R may also be a combination of 3 first TD-OCC sequences, which 3 first TD-OCC sequences may all be the same (e.g., may increase gain) or partially different (e.g., the first 2 first TD-OCC sequences are the same) or adjacent 2 are all different, e.g., 1 st is [ +1+1 ], second is [ +1-1 ], third is [ +1+1 ]; or 3 are [ +1-1 ]; or 3 are [ +1+1 ]; or 1 st is [ +1+1 ], second is [ +1+1 ], and third is [ +1-1 ]; etc.
For r=8:
(1) The TD-OCC sequences matched to R may also be a combination of 4 first TD-OCC sequences, which 4 first TD-OCC sequences may all be identical (e.g., may increase gain) or partially non-identical (e.g., the first 2 first TD-OCC sequences are identical) or adjacent 2 are all non-identical, e.g., 4 are all [ +1+1 ]; or 4 are [ +1-1 ]; etc.
(2) The TD-OCC sequences that match R may also be a combination of 2 second TD-OCC sequences, which may be identical (e.g., may increase gain) or non-identical. The second TD-OCC sequence may be, for example, any one of w in Table 2 n (i) Or w in Table 4 n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]。
(3) The TD-OCC sequences matching R may be a combination of 2 first TD-OCC sequences +1 second TD-OCC sequences. The 2 first TD-OCC sequences may be the same or different. The first TD-OCC sequence may be [ +1+1 ]]Or [ +1-1]The second TD-OCC sequence may be, for example, any one of w in Table 2 n (i) Or Table 4W of any one of n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]. In terms of time, the SRS symbols corresponding to the second TD-OCC sequences may be preceding, and the SRS symbols corresponding to the 2 first TD-OCC sequences may be following; or 2 SRS symbols corresponding to the first TD-OCC sequence are in front, and SRS symbols corresponding to the second TD-OCC sequence are in back; or 1 SRS symbol corresponding to the first TD-OCC sequence is before, the SRS symbol corresponding to the second TD-OCC sequence is in the middle, and the SRS symbol corresponding to the other first TD-OCC sequence is after.
For r=10:
(1) The TD-OCC sequences that match R may also be a combination of 5 first TD-OCC sequences, which 5 first TD-OCC sequences may be all identical or partially different (e.g., the first 2 first TD-OCC sequences are identical) or adjacent 2 are all different.
(2) The TD-OCC sequences matching R may also be a combination of 3 first TD-OCC sequences +1 second TD-OCC sequences, and the 3 first TD-OCC sequences may be all identical or partially different (e.g., the first 2 first TD-OCC sequences are identical) or all adjacent 2 are different. In terms of time, the SRS symbols corresponding to the second TD-OCC sequences may be preceding, and the SRS symbols corresponding to the 3 first TD-OCC sequences may be following; or 3 SRS symbols corresponding to the first TD-OCC sequences are in front, and SRS symbols corresponding to the second TD-OCC sequences are in back; or 2 SRS symbols corresponding to the first TD-OCC sequence are in front, SRS symbols corresponding to the second TD-OCC sequence are in the middle, and SRS symbols corresponding to the other first TD-OCC sequence are in the back; or 1 SRS symbol corresponding to the first TD-OCC sequence is before, the SRS symbol corresponding to the second TD-OCC sequence is in the middle, and the SRS symbol corresponding to the other 2 first TD-OCC sequences is after.
(3) The TD-OCC sequences matching R may also be a combination of 1 first TD-OCC sequence +2 second TD-OCC sequences, which may be the same or different. In terms of time, the SRS symbols corresponding to the 2 second TD-OCC sequences may be the front and the SRS symbols corresponding to the first TD-OCC sequences may be the rear; or the SRS symbols corresponding to the first TD-OCC sequence are before, and the SRS symbols corresponding to the 2 second TD-OCC sequences are after; or the SRS symbols corresponding to the first TD-OCC sequence are in front, the SRS symbols corresponding to the first TD-OCC sequence are in the middle, and the SRS symbols corresponding to the other second TD-OCC sequence are in the back.
For r=12:
(1) The TD-OCC sequences that match R may also be a combination of 6 first TD-OCC sequences, which 6 first TD-OCC sequences may all be identical or partially different (e.g., the first 2 first TD-OCC sequences are identical) or adjacent 2 may all be different.
(2) The TD-OCC sequences that match R may also be a combination of 3 second TD-OCC sequences, which may be all identical or partially different (e.g., the first 2 second TD-OCC sequences are identical) or adjacent 2 are all different.
(3) The TD-OCC sequences matched to R may also be a combination of 2 second TD-OCC sequences, which may be the same or different, and 2 first TD-OCC sequences, which may be the same or different. In terms of time, the SRS symbols corresponding to the 2 second TD-OCC sequences may be preceding, and the SRS symbols corresponding to the 2 first TD-OCC sequences may be following; or the SRS symbols corresponding to the 2 first TD-OCC sequences are in front, and the SRS symbols corresponding to the 2 second TD-OCC sequences are in back; or the SRS symbols corresponding to 1 first TD-OCC sequence are in front, the SRS symbols corresponding to 2 second TD-OCC sequences are in the middle, and the SRS symbols corresponding to the other 1 first TD-OCC sequences are in back; or the SRS symbols corresponding to 1 second TD-OCC sequence are in front, the SRS symbols corresponding to 2 first TD-OCC sequences are in the middle, and the SRS symbols corresponding to the other 1 second TD-OCC sequence are in the back.
For r=14:
(1) The TD-OCC sequences that match R may also be a combination of 7 first TD-OCC sequences, which 7 first TD-OCC sequences may be all identical or partially different (e.g., the first 2 first TD-OCC sequences are identical) or adjacent 2 are all different.
(2) The TD-OCC sequences matching R may also be a combination of 2 second TD-OCC sequences +3 first TD-OCC sequences, which may be identical or different, and the 3 first TD-OCC sequences may be identical or partially identical (e.g., the first 2 second TD-OCC sequences are identical) or adjacent 2 different. In terms of time, the SRS symbols corresponding to 2 second TD-OCC sequences may be the front, and the SRS symbols corresponding to 3 first TD-OCC sequences may be the rear; or the SRS symbols corresponding to the 3 first TD-OCC sequences are in front, and the SRS symbols corresponding to the 2 second TD-OCC sequences are in back; or the SRS symbols corresponding to 1 second TD-OCC sequence are in front, the SRS symbols corresponding to 3 second TD-OCC sequences are in the middle, and the SRS symbols corresponding to the other 1 second TD-OCC sequence are in back; or the SRS symbols corresponding to 1 first TD-OCC sequence are in front, the SRS symbols corresponding to 2 second TD-OCC sequences are in the middle, and the SRS symbols corresponding to the other 2 first TD-OCC sequences are in back; or 2 SRS symbols corresponding to the first TD-OCC sequences are in front, 2 SRS symbols corresponding to the second TD-OCC sequences are in the middle, and the SRS symbols corresponding to the other 1 first TD-OCC sequences are in the back; etc.
(3) The R-matched TD-OCC sequence may also be a combination of 1 second TD-OCC sequence and 5 first TD-OCC sequences (e.g., the 1 second TD-OCC sequence may be aligned in front of or behind or somewhere in the middle), the 5 first TD-OCC sequences may be identical or partially identical (e.g., the first 2 second TD-OCC sequences are identical) or adjacent 2 may be different. In terms of time, the SRS symbols corresponding to 1 second TD-OCC sequence are before, and the SRS symbols corresponding to 5 first TD-OCC sequences are after; or the SRS symbols corresponding to the 5 first TD-OCC sequences are in front, and the SRS symbols corresponding to the 1 second TD-OCC sequences are in back; etc.
(4) The R-matched TD-OCC sequences may also be a combination of 3 second TD-OCC sequences and 1 first TD-OCC sequence (e.g., the 1 first TD-OCC sequence may be aligned in front of or behind or somewhere in the middle), the 3 second TD-OCC sequences may be identical or partially identical (e.g., the first 2 second TD-OCC sequences are identical) or adjacent 2 may be different. In terms of time, the SRS symbols corresponding to 1 first TD-OCC sequence are before, and the SRS symbols corresponding to 3 second TD-OCC sequences are after; or the SRS symbols corresponding to the 3 second TD-OCC sequences are in front, and the SRS symbols corresponding to the 1 first TD-OCC sequences are in back; etc.
Further, with regard to the above mode 1, the network device may further send a first modification command to the terminal device, and correspondingly, the terminal device receives the first modification command from the network device. The first modification command is used for indicating modification of a first TD-OCC sequence and/or a second TD-OCC sequence in the TD-OCC sequences matched with R. For example, r=6, the TD-OCC sequence matching R is [ +1+1+1-1-1 ], consisting of a first TD-OCC sequence [ +1+1 ] + a second TD-OCC sequence [ +1+1-1-1 ], the first modification command may instruct modification of the first TD-OCC sequence to [ +1-1 ], such that the newly composed TD-OCC sequence matching R is [ +1-1+1-1-1 ]. The first modification command may be, for example, a media access control-control element (medium access control-control element, MAC-CE) or downlink control information (downlink control information, DCI). Modifying the first TD-OCC sequence and/or the second TD-OCC sequence through the first modification command helps to increase flexibility of the generated SRS.
Mode 2, the terminal device generates a TD-OCC sequence matched with R based on the second configuration information.
The second configuration information may be sent by the network device to the terminal device, and the terminal device receives the second configuration information from the network device. The second configuration information may be RRC signaling. The second configuration information is used for configuring one or more reference TD-OCC sequences, and the terminal equipment generates a TD-OCC sequence matched with R according to the configured one or more reference TD-OCC sequences. The specific number of reference TD-OCC sequences may be related to the value of R. The second configuration information may be applied to each R consecutive SRS symbols of an SRS resource, or to an entire SRS symbol, or to all SRS resources in an SRS resource set, or to each R consecutive SRS symbols of all SRS resources in an SRS resource set.
For example, r=4, and the second configuration information is used to configure a reference TD-OCC sequence with a sequence length of 4, where the reference TD-OCC sequence may be any one w in table 2 n (i) Or w in Table 4 n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]But may also be otherA TD-OCC sequence with the sequence length of 4. For another example, r=6, the second configuration information is used to configure 1 reference TD-OCC sequence [ +1+1 ] with sequence length 2]And 1 reference TD-OCC sequence [ +1+1-1 of sequence length 4]The second configuration information may also be used to configure the order of the two reference TD-OCC sequences (e.g., reference TD-OCC sequence of sequence length 2 preceded).
Further, for the above mode 2, the network device may further send a second modification command to the terminal device, and correspondingly, the terminal device receives the second modification command from the network device. Wherein the second modification command is used for indicating modification of the one or more reference TD-OCC sequences. For example, r=6, the second configuration information indicates two TD-OCC sequences of [ +1+1 ] and [ +1+1-1-1 ] respectively, and the second modification command may indicate that [ +1+1 ] is modified to [ +1-1 ] so that the TD-OCC sequence matching R may be expressed as [ +1-1+1+1-1-1 ]. The second modification command may be, for example, a MAC-CE. Modifying the reference TD-OCC sequence indicated by the second configuration information by the second modification command helps to improve flexibility.
And 3, the terminal equipment generates a TD-OCC sequence matched with R according to the predefined TD-OCC sequence of the protocol. That is, the protocol may predefine the TD-OCC sequence to which each R value corresponds.
For example, based on the mode 3, taking the preset value set {1,2,4,5,6,7,8,10,12,14} of R as an example, the TD-OCC sequence matched with R is described.
For r=2: the TD-OCC sequence matched with R can be a TD-OCC sequence with the predefined sequence length of 2, such as [ +1+1 ] or [ +1-1 ], and can also be other TD-OCC sequences with the sequence length of 2.
For r=4: the TD-OCC sequence matched with R can be a TD-OCC sequence with a predefined sequence length of 4, such as any one w in table 2 n (i) Or w in Table 4 n (i) Or any one of [ w ] in Table 8 t (0) w t (1) w t (2) w t (3)]Other TD-OCC sequences of sequence length 4 are also possible. Or a combination of 2 TD-OCC sequences with 2 sequence lengths predefined by a protocol, wherein the 2 sequencesThe TD-OCC sequences of column length 2 may be the same or different.
For r=5: the TD-OCC sequence matched with R can be a TD-OCC sequence with a sequence length of 5 predefined by a protocol; or a TD-OCC sequence with a sequence length of 4 predefined by the protocol (which is beneficial to capacity expansion).
For r=6: the TD-OCC sequence matched with R can be a TD-OCC sequence with a predefined sequence length of 6; the method can also be a TD-OCC sequence with a sequence length of 5 predefined by a protocol (which is beneficial to capacity expansion); or a combination of 1 TD-OCC sequence with the sequence length of 4 and 1 TD-OCC sequence with the sequence length of 2 predefined by a protocol; it may also be a combination of 3 TD-OCC sequences of sequence length 2 predefined by the protocol.
For r=7: the TD-OCC sequence matched with R can be a TD-OCC sequence with a sequence length of 7 predefined by a protocol; or a TD-OCC sequence with a sequence length of 6 predefined by a protocol (which is beneficial to capacity expansion).
For r=8: the TD-OCC sequence matched with R can be a TD-OCC sequence with a sequence length of 8 predefined by a protocol; the method can also be a TD-OCC sequence with a sequence length of 7 predefined by a protocol (which is beneficial to capacity expansion); or a combination of 4 TD-OCC sequences with the sequence length of 2 predefined by a protocol; or a combination of 2 TD-OCC sequences with the sequence length of 4; it is also possible to combine 1 TD-OCC sequence of sequence length 4 with 2 TD-OCC sequences of sequence length 2.
For r=10: the TD-OCC sequence matched with R can be a TD-OCC sequence with the length of 10 predefined sequence length of a protocol; or a combination of 5 TD-OCC sequences with the sequence length of 2 predefined by a protocol; or a combination of 4 TD-OCC sequences with the sequence length of 2 and 1 TD-OCC sequence with the sequence length of 2; it is also possible to combine 3 TD-OCC sequences of sequence length 2 with 1 TD-OCC sequence of sequence length 4.
For r=12: the TD-OCC sequence matched with R can be a TD-OCC sequence with a predefined sequence length of 12; or a combination of 6 TD-OCC sequences with the sequence length of 2 predefined by a protocol; or a combination of 2 TD-OCC sequences with the sequence length of 4 and 2 TD-OCC sequences with the sequence length of 2; a combination of 3 TD-OCC sequences of sequence length 4 is also possible.
For r=14: the TD-OCC sequence matched with R may be a TD-OCC sequence of sequence length 14 predefined by the protocol; or a combination of 7 TD-OCC sequences with the sequence length of 2 predefined by a protocol; or a combination of 2 TD-OCC sequences with the sequence length of 4 and 3 TD-OCC sequences with the sequence length of 2; or a combination of 5 TD-OCC sequences with the sequence length of 2 and 1 TD-OCC sequence with the sequence length of 4; it is also possible to combine 1 TD-OCC sequence of sequence length 2 with 3 TD-OCC sequences of sequence length 4.
The above-mentioned modes 1 to 3 may be alternatively performed, or may be performed in combination, for example, in combination with mode 2 and mode 3, and the second configuration information is used to indicate at least one TD-OCC sequence of the predefined plurality of TD-OCC sequences. The above embodiments 1 to 3 are examples, and do not limit the present application.
S303, the terminal equipment generates SRS based on the TD-OCC sequence.
Optionally, the terminal device generates the SRS based on the TD-OCC sequence and the SRS base sequence. For example, the TD-OCC sequence is multiplied by an SRS base sequence to obtain an SRS sequence, based on which the SRS is available. The SRS base sequence may or may not have R as a transmission unit. If R is taken as a transmission unit, the sequence length of the TD-OCC sequence is the same as that of the SRS base sequence. If R is not taken as a transmission unit, a base sequence corresponding to the TD-OCC sequence is selected from SRS base sequences, and the base sequence is multiplied by the TD-OCC sequence to obtain the SRS sequence. That is, the generated SRS refers to the SRS of one transmission unit R. For example, r=4, and the generated SRS refers to one SRS in a transmission unit of 4 symbols in the time domain. For another example, r=6, and the generated SRS refers to one SRS having a transmission unit of 6 symbols in the time domain.
For example, r=6, SRS1 is generated based on TD-OCC sequence 1, SRS2 is generated based on TD-OCC sequence 2, SRS3 is generated by TD-OCC sequence 3, SRS4 is generated by TD-OCC sequence 4, the sequence length of the 4 TD-OCC sequences is 6, and the 4 SRSs occupy the same 6 symbols in the time domain. Because the 4 TD-OCC sequences have orthogonality, the interference among the 4 SRSs is smaller, so that the 6 symbols can bear the SRSs of 4 terminal devices or bear the 4 SRSs of 1 terminal device, thereby being beneficial to improving the system capacity.
In the embodiment shown in fig. 3, the TD-OCC sequence is generated based on the repetition factor, and the SRS is generated based on the TD-OCC sequence, so that interference between the SRS can be reduced, thereby facilitating channel estimation by the network device. And SRS is generated based on the TD-OCC sequence, so that the system capacity can be improved.
As an alternative embodiment, the network device may not configure the TD-OCC sequence for some R, or the protocol may not predefine the TD-OCC sequence for some R, e.g. for r=5 or r=7, then the method provided in the present application cannot be applied, or a frequency hopping method is employed to reduce interference between SRS. Alternatively, the frequency hopping method is an exclusive relationship with the methods provided herein.
As an alternative embodiment, the generated SRS is an SRS with R as a transmission unit, and the SRS symbol corresponding to the TD-OCC sequence does not span two adjacent R SRS symbols. I.e., the start symbol of every R SRS symbols is the start of a new TD-OCC sequence. For example (12, 6), the start symbol of every 6 SRS symbols is the start of a new TD-OCC sequence.
As an alternative embodiment, the generated time domain resource of the SRS and the time domain resource of the physical uplink channel each include the first time domain resource, and then the time domain resource of the SRS is discarded and the physical uplink channel is transmitted on the time domain resource of the physical uplink channel. The physical uplink channel may be a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH). The time domain resources of the SRS and the time domain resources of the physical uplink channel both include first time domain resources, which can be understood as that the time domain resources of the SRS occupy the same time domain resources as the time domain resources of the physical uplink channel, or the SRS collides with the physical uplink channel in the time domain. Discarding the time domain resources of the SRS may be understood as discarding the entire SRS resources, i.e. not transmitting the SRS.
In another implementation, when the time domain resource for generating the SRS and the time domain resource for the physical uplink channel both include the first time domain resource, determining a conflicted SRS TD-OCC sequence corresponding to the first time domain resource, and discarding the SRS symbol corresponding to the conflicted SRS TD-OCC sequence. For example, r=6, the TD-OCC sequence matched with R is composed of a TD-OCC sequence with a sequence length of 2 and a TD-OCC sequence with a sequence length of 4, if the conflicting TD-OCC sequence corresponding to the first time domain resource is the TD-OCC sequence with a sequence length of 2, the SRS symbol corresponding to the TD-OCC sequence with a sequence length of 2 is discarded, and the SRS symbol corresponding to the TD-OCC sequence with a sequence length of 4 is reserved, so that SRS can still be transmitted; if the collision TD-OCC sequence corresponding to the first time domain resource is the 2 TD-OCC sequences, the 2 TD-OCC sequences may be discarded, and no SRS is transmitted or no TD-OCC sequence is used for the SRS. For another example, the TD-OCC sequence matched with R is a predefined TD-OCC sequence with a sequence length of 6, and if the collision TD-OCC sequence corresponding to the first time domain resource is the TD-OCC sequence with a sequence length of 6, the TD-OCC sequence with a sequence length of 6 is discarded, and no SRS is transmitted or no TD-OCC sequence is used for the SRS. So that time domain collisions can be avoided. The time domain resources of the SRS and the time domain resources of the physical uplink channel both include first time domain resources, which can be understood as that the time domain resources of the SRS occupy the same time domain resources as the time domain resources of the physical uplink channel, or the SRS collides with the physical uplink channel in the time domain. Discarding the time domain resources of the SRS may be understood as discarding the entire SRS resources, i.e. not transmitting the SRS. The physical uplink channel may be a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH).
Referring to fig. 4, fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device 40 may be a terminal device or a device matching with a terminal device. As shown in fig. 4, the communication device 40 includes a processing unit 401 and a communication unit 402.
In one implementation, the communication unit 402 is configured to receive first configuration information, where the first configuration information is configured to configure a repetition factor of the SRS in a time domain; the value of the repetition factor is a positive integer which is more than or equal to 1;
a processing unit 401, configured to determine a TD-OCC sequence matched with the repetition factor, where the sequence length of the TD-OCC sequence is less than or equal to the value of the repetition factor; based on the TD-OCC sequence, SRS is generated.
Optionally, the processing unit 401 is specifically configured to generate a TD-OCC sequence matching the repetition factor based on the first TD-OCC sequence and/or the second TD-OCC sequence; the sequence length of the first TD-OCC sequence is a first threshold, the sequence length of the second TD-OCC sequence is a second threshold, and the first threshold is smaller than the second threshold.
Optionally, the sequence length of the TD-OCC sequence can be divided by the first threshold value and/or the second threshold value, and the sequence length of the TD-OCC sequence is equal to the value of the repetition factor;
Or,
the sequence length of the TD-OCC sequence cannot be divided by the first threshold value and/or the second threshold value, and the sequence length of the TD-OCC sequence is smaller than the value of the repetition factor.
Optionally, the communication unit 402 is further configured to receive a first modification signaling, where the first modification signaling is configured to instruct modification of the first TD-OCC sequence and/or the second TD-OCC sequence.
Optionally, the communication unit 402 is further configured to receive second configuration information, where the second configuration information is used to configure one or more reference TD-OCC sequences for SRS;
the processing unit 401 is specifically configured to generate a TD-OCC sequence matching the repetition factor according to one or more reference TD-OCC sequences.
Optionally, the communication unit 402 is further configured to receive second modification signaling, where the second modification signaling is configured to instruct modification of one or more reference TD-OCC sequences.
Optionally, the time domain resource of the SRS and the time domain resource of the physical uplink channel both include a first time domain resource;
the processing unit 401 is further configured to discard time-frequency resources of the SRS; the communication unit 402 is further configured to send the physical uplink channel on a time domain resource of the physical uplink channel.
Optionally, the time domain resource of the SRS and the time domain resource of the physical uplink channel both include a first time domain resource;
The processing unit 401 is specifically configured to determine a conflicted SRS TD-OCC sequence corresponding to the first time domain resource, and discard SRS symbols corresponding to the conflicted SRS TD-OCC.
Optionally, the repetition factor is one of a set of preset values.
The communication device 40 may be a network device or a device matching with a network device. As shown in fig. 4, the communication device 40 includes a communication unit 402.
In one implementation, the communication unit 402 is configured to send first configuration information, where the first configuration information is used to configure a repetition factor of the SRS in a time domain; the value of the repetition factor is a positive integer which is more than or equal to 1; the repetition factor is used for determining a TD-OCC sequence matched with the repetition factor, and the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; the TD-OCC sequence is used to generate SRS.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another communication device according to an embodiment of the present application. The communication device 50 may be a terminal device or a device matching with a terminal device. The communication device 50 may be a network device or a device matching with a network device. Optionally, the communication device may further comprise a memory 503. Wherein the transceiver 501, the processor 502, the memory 503 may be connected by a bus 504 or otherwise. The bus is shown in bold lines in fig. 5, and the manner in which other components are connected is merely illustrative and not limiting. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.
The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms for information interaction between the devices, units, or modules. The specific connection medium between the transceiver 501, the processor 502, and the memory 503 is not limited in the embodiments of the present application.
Memory 503 may include read-only memory and random access memory and provides instructions and data to processor 502. A portion of memory 503 may also include non-volatile random access memory.
The processor 502 may be a central processing unit (Central Processing Unit, CPU), and the processor 502 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor, but in the alternative, the processor 502 may be any conventional processor or the like.
In an alternative embodiment, memory 503 is used to store program instructions; a processor 502 for invoking program instructions stored in memory 503 for performing the steps performed by the terminal device in the corresponding embodiment of fig. 3. In another alternative embodiment, memory 503 is used to store program instructions; a processor 502 for invoking program instructions stored in memory 503 for performing the steps performed by the network device in the corresponding embodiment of fig. 3.
In the embodiments of the present application, the methods provided in the embodiments of the present application may be implemented by running a computer program (including program code) capable of executing the steps involved in the above-described methods on a general-purpose computing device such as a computer including a processing element such as a CPU, a random access storage medium (Random Access Memory, RAM), a Read-Only Memory (ROM), or the like, and a storage element. The computer program may be recorded on, for example, a computer-readable recording medium, and loaded into and run in the above-described computing device through the computer-readable recording medium.
Based on the same inventive concept, the principle and beneficial effects of the communication device 50 provided in the embodiment of the present application are similar to those of the embodiment shown in fig. 3 of the present application, and may be referred to the principle and beneficial effects of the implementation of the method, which are not described herein for brevity.
The communication device may be, for example: a chip, or a chip module.
The embodiment of the application also provides a chip, which comprises a processor, and the processor can execute the relevant steps of the terminal equipment in the embodiment of the method.
In one implementation, the chip is to: the method comprises the steps of receiving first configuration information, wherein the first configuration information is used for configuring a repetition factor of SRS in a time domain; the value of the repetition factor is a positive integer which is more than or equal to 1; determining a TD-OCC sequence matched with the repetition factor, wherein the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; based on the TD-OCC sequence, SRS is generated.
Optionally, the chip is specifically configured to generate a TD-OCC sequence matched with the repetition factor based on the first TD-OCC sequence and/or the second TD-OCC sequence; the sequence length of the first TD-OCC sequence is a first threshold, the sequence length of the second TD-OCC sequence is a second threshold, and the first threshold is smaller than the second threshold.
Optionally, the sequence length of the TD-OCC sequence can be divided by the first threshold value and/or the second threshold value, and the sequence length of the TD-OCC sequence is equal to the value of the repetition factor;
or,
the sequence length of the TD-OCC sequence cannot be divided by the first threshold value and/or the second threshold value, and the sequence length of the TD-OCC sequence is smaller than the value of the repetition factor.
Optionally, the chip is further configured to receive a first modification signaling, where the first modification signaling is configured to instruct modification of the first TD-OCC sequence and/or the second TD-OCC sequence.
Optionally, the chip is further configured to receive second configuration information, where the second configuration information is configured to configure one or more reference TD-OCC sequences for SRS;
the chip is specifically used for generating the TD-OCC sequence matched with the repetition factor according to one or more reference TD-OCC sequences.
Optionally, the chip is further configured to receive a second modification signaling, where the second modification signaling is configured to instruct modification of one or more reference TD-OCC sequences.
Optionally, the time domain resource of the SRS and the time domain resource of the physical uplink channel both include a first time domain resource;
the chip is also used for discarding the time-frequency resource of the SRS; and transmitting the physical uplink channel on the time domain resource of the physical uplink channel.
Optionally, the time domain resource of the SRS and the time domain resource of the physical uplink channel both include a first time domain resource;
the chip is specifically configured to determine a conflicting TD-OCC sequence corresponding to the first time domain resource, and discard SRS symbols corresponding to the conflicting TD-OCC sequence.
Optionally, the repetition factor is one of a set of preset values.
In another implementation, the chip is configured to: transmitting first configuration information, wherein the first configuration information is used for configuring a repetition factor of SRS in a time domain; the value of the repetition factor is a positive integer which is more than or equal to 1; the repetition factor is used for determining a TD-OCC sequence matched with the repetition factor, and the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; the TD-OCC sequence is used to generate SRS.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a chip module according to an embodiment of the present application. The chip module 60 may perform the steps related to the terminal device in the foregoing method embodiment, where the chip module 60 includes: a communication interface 601 and a chip 602.
The communication interface is used for carrying out internal communication of the chip module or carrying out communication between the chip module and external equipment. The communication interface may also be described as a communication module. The chip 602 is used to implement the functions of the terminal device in the embodiment of the present application.
For example, the chip 602 is configured to receive first configuration information, where the first configuration information is used to configure a repetition factor of the SRS in a time domain; the value of the repetition factor is a positive integer which is more than or equal to 1; determining a TD-OCC sequence matched with the repetition factor, wherein the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; based on the TD-OCC sequence, SRS is generated.
Optionally, the chip module 60 may further include a memory module 603 and a power module 604. The storage module 603 is used for storing data and instructions. The power module 604 is used for providing power to the chip module.
For each device and product applied to or integrated in the chip module, each module included in the device and product may be implemented by hardware such as a circuit, and different modules may be located in the same component (e.g. a chip, a circuit module, etc.) of the chip module or different components, or at least some modules may be implemented by using a software program, where the software program runs on a processor integrated in the chip module, and the remaining (if any) modules may be implemented by hardware such as a circuit.
Embodiments of the present application also provide a computer readable storage medium having one or more instructions stored therein, the one or more instructions being adapted to be loaded by a processor and to perform the methods provided by the method embodiments described above.
The present application also provides a computer program product comprising a computer program or instructions which, when run on a computer, cause the computer to perform the method provided by the method embodiments described above.
For the above embodiments, for simplicity of description, the same is denoted as a series of combinations of actions. It will be appreciated by those skilled in the art that the present application is not limited by the illustrated ordering of acts, as some steps may be performed in other order or concurrently in embodiments of the present application. In addition, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts, steps, modules, units, etc. that are referred to are not necessarily required in the embodiments of the application.
In the foregoing embodiments, the descriptions of the embodiments of the present application are focused on each embodiment, and for a portion of one embodiment that is not described in detail, reference may be made to the related descriptions of other embodiments.
The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, erasable programmable read-only memory (erasable programmable ROM, EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disk, a removable disk, a compact disc read-only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may be located in a terminal device or a management device. The processor and the storage medium may reside as discrete components in a terminal device or management device.
Those of skill in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.
The foregoing embodiments have been provided for the purpose of illustrating the embodiments of the present application in further detail, and it should be understood that the foregoing embodiments are merely illustrative of the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application are included in the scope of the embodiments of the present application.

Claims (14)

1. A method for generating a sounding reference signal, the method comprising:
receiving first configuration information, wherein the first configuration information is used for configuring a repetition factor of a Sounding Reference Signal (SRS) in a time domain; the value of the repetition factor is a positive integer which is more than or equal to 1;
determining a time division orthogonal cover code TD-OCC sequence matched with the repetition factor, wherein the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor;
and generating the SRS based on the TD-OCC sequence.
2. The method of claim 1, wherein the determining the TD-OCC sequence matching the repetition factor comprises:
generating a TD-OCC sequence matching the repetition factor based on the first TD-OCC sequence and/or the second TD-OCC sequence; the sequence length of the first TD-OCC sequence is a first threshold, the sequence length of the second TD-OCC sequence is a second threshold, and the first threshold is smaller than the second threshold.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
the sequence length of the TD-OCC sequence can be divided by the first threshold value and/or the second threshold value, and the sequence length of the TD-OCC sequence is equal to the value of the repetition factor;
or,
the sequence length of the TD-OCC sequence is not divided by the first threshold value and/or the second threshold value, and the sequence length of the TD-OCC sequence is smaller than the value of the repetition factor.
4. The method according to claim 2, wherein the method further comprises:
and receiving a first modification signaling, wherein the first modification signaling is used for indicating modification of the first TD-OCC sequence and/or the second TD-OCC sequence.
5. The method according to claim 1, wherein the method further comprises:
receiving second configuration information, wherein the second configuration information is used for configuring one or more reference TD-OCC sequences for the SRS;
the determining the TD-OCC sequence matching the repetition factor comprises:
generating a TD-OCC sequence matched with the repetition factor according to the one or more reference TD-OCC sequences.
6. The method of claim 5, wherein the method further comprises:
And receiving second modification signaling, wherein the second modification signaling is used for indicating modification of the one or more reference TD-OCC sequences.
7. The method according to any one of claims 1 to 6, wherein the time domain resources of the SRS and the time domain resources of the physical uplink channel each comprise a first time domain resource;
the method further comprises the steps of:
and discarding the time-frequency resource of the SRS and transmitting the physical uplink channel on the time-domain resource of the physical uplink channel.
8. The method according to any one of claims 1 to 6, wherein the time domain resources of the SRS and the time domain resources of the physical uplink channel each comprise a first time domain resource;
the method further comprises the steps of:
and determining a conflict TD-OCC sequence corresponding to the first time domain resource, and discarding SRS symbols corresponding to the conflict TD-OCC sequence.
9. The method of any one of claims 1 to 6, wherein the repetition factor is one of a set of preset values.
10. A method for generating a sounding reference signal, the method comprising:
transmitting first configuration information, wherein the first configuration information is used for configuring a repetition factor of SRS in a time domain; the value of the repetition factor is a positive integer which is more than or equal to 1; the repetition factor is used for determining a TD-OCC sequence matched with the repetition factor, and the sequence length of the TD-OCC sequence is smaller than or equal to the value of the repetition factor; the TD-OCC sequence is used for generating the SRS.
11. A communication device comprising a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to implement the steps of the method of any one of claims 1-9; or steps implementing the method of claim 10.
12. A chip comprising a processor, wherein the processor performs the steps of the method of any one of claims 1-9, or performs the steps of the method of claim 10.
13. The utility model provides a chip module, its characterized in that, chip module includes communication module, power module, storage module and chip, wherein: the power supply module is used for providing electric energy for the chip module; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of the chip module or carrying out communication between the chip module and external equipment; the chip being for performing the steps of the method of any one of claims 1-9; or performing the steps of the method of claim 10.
14. A computer readable storage medium, characterized in that it stores a computer program or instructions which, when executed, implements the steps of the method of any one of claims 1-9, or performs the steps of the method of claim 10.
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