Reference signal generating and sending method, reference signal receiving method and device

Abstract

The invention provides a reference signal generating and sending method, and a reference signal receiving method and device. The method comprises the steps that a first reference signal is generated according to a first phase compensation value, the first reference signal occupies a first time unit, the first phase compensation value is a phase compensation value corresponding to the first time unit, and the first phase compensation value is used for compensating the phase of the first reference signal; and sending or outputting the first reference signal. In the technical scheme, the first device generates the first reference signal according to the first phase compensation value. The first phase compensation value is used for compensating the phase of the first reference signal. The first reference signal can be understood as a one-hop signal, and phase compensation of the one-hop signal is realized through the technical scheme. According to the method and the device, the correlation of the multi-hop signals sent on a plurality of time units on the phase can be conveniently realized, so that a receiving end can jointly receive the multi-hop signals, and channel estimation is carried out through the multi-hop signals, so that the channel estimation precision and the channel estimation performance are improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a method for generating and transmitting a reference signal, a method for receiving a reference signal, and an apparatus. Background Technology

[0002] During uplink channel measurement, the sounding reference signal (SRS) can be transmitted via narrowband using frequency hopping. Terminal devices transmit the SRS via narrowband, concentrating terminal power onto that narrowband, which improves the performance of network devices performing channel estimation based on the SRS. Terminal devices can also transmit multi-hop SRS via frequency hopping, enabling network devices to obtain channel information at various frequency positions.

[0003] However, in multi-hop SRS, each hop SRS is generated independently. Network devices perform channel estimation based on an independent one-hop SRS. Since the bandwidth occupied by a one-hop SRS is relatively small, the channel estimation accuracy is low, resulting in poor channel estimation performance. Summary of the Invention

[0004] This application provides a reference signal generation and transmission method, a reference signal reception method, and an apparatus. The method involves a first apparatus generating a first reference signal based on a first phase compensation value. The first phase compensation value is used to compensate the phase of the first reference signal. The first reference signal can be understood as a one-hop signal. The technical solution of this application achieves phase compensation for a one-hop signal transmitted in a first time unit. This facilitates the establishment of phase correlation between multi-hop signals transmitted in multiple time units, enabling the receiver to jointly receive the multi-hop signal and perform channel estimation using the multi-hop signal, thereby improving channel estimation accuracy and performance.

[0005] This application provides a method for generating and transmitting a reference signal. The method is applied to a first device, which may be executed by the first device itself. The first device may be a terminal device, a network device (such as an access network device or a core network device), or a component within the terminal device or network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the terminal device, or a logic module or software capable of implementing all or part of the functions of the network device. The following description uses the first device as an example. The method includes: the first device generating a first reference signal based on a first phase compensation value, the first reference signal occupying a first time unit, the first phase compensation value being the phase compensation value corresponding to the first time unit, and the first phase compensation value being used to compensate for the phase of the first reference signal; and the first device transmitting or outputting the first reference signal.

[0006] In the above technical solution, the first device generates a first reference signal based on a first phase compensation value. The first phase compensation value is used to compensate the phase of the first reference signal. The first reference signal can be understood as a one-hop reference signal. The technical solution of this application realizes phase compensation of the one-hop reference signal transmitted in the first time unit. This facilitates the establishment of phase correlation between multi-hop reference signals transmitted in multiple time units, enabling the receiving end to jointly receive the multi-hop reference signal and perform channel estimation through the multi-hop reference signal, thereby improving the channel estimation accuracy and performance.

[0007] A second aspect of this application provides a signal receiving method. This method is applied to a second device, which may be executed by the second device itself. The second device may be a terminal device, a network device (e.g., an access network device or a core network device), or a component within the terminal device or network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the terminal device, or a logic module or software capable of implementing all or part of the functions of the network device. The following description uses the second device as an example. The method includes: the second device receiving a first reference signal from a first device, the first reference signal occupying a first time unit, a first phase compensation value being the phase compensation value corresponding to the first time unit, and the first reference signal being generated based on the first phase compensation value.

[0008] In the above technical solution, the second device receives a first reference signal, which occupies a first time unit. The first phase compensation value is the phase compensation value corresponding to the first time unit, and the first reference signal is generated based on the first phase compensation value. This achieves phase compensation for the one-hop reference signal carried in the first time unit. It facilitates the establishment of phase correlation between multiple reference signals carried in multiple time units, enabling the receiver to jointly receive the multi-hop reference signal and perform channel estimation using the multi-hop reference signal, thereby improving channel estimation accuracy and performance.

[0009] Based on the second aspect, in one possible implementation, the method further includes: the second device performing channel estimation based on the first reference signal.

[0010] Based on the first or second aspect, in one possible implementation, the first reference signal occupies a first frequency resource, which belongs to a first sub-bandwidth. In other words, the first frequency resource is located within the frequency range of the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2, and the first time unit is one of the P time units. In this implementation, the total bandwidth is divided into multiple sub-bandwidths, facilitating the transmission of the reference signal using the technical solution of this application within each sub-bandwidth. This allows the receiving end to jointly receive the reference signals within the sub-bandwidths, thereby improving channel estimation performance.

[0011] Based on the first or second aspect, in one possible implementation, the first reference signal is generated according to a first sequence; wherein, the first sequence Or for Or for Or for t0 is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the first time unit in the number of frequency hopping times corresponding to P time units; α is the cyclic shift value, p(t0) is the first phase compensation value, and m0 is the order of the subcarriers occupied by the first frequency resource. or r u,v (m0)=r q [m0],N ZC for The sequence length q is determined by u and v, where u is... The sequence group number, v is The serial number.

[0012] In this implementation, the first reference signal is generated from a first sequence. As can be seen from the expression of the first sequence, a first phase compensation value is introduced into the first sequence, thereby achieving phase compensation for the first reference signal. This enables the implementation of the scheme.

[0013] Based on the first or second aspect, in one possible implementation, the first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; the first reference signal is generated based on at least one of the following: the starting frequency domain position occupied by the first reference signal, the phase compensation period corresponding to P time units, the local frequency hopping index of the first time unit, the bandwidth size occupied by the first frequency resource, and the total number of frequency hoppings in the time units occupied by the reference signal carried on the total bandwidth, and a first phase compensation value; wherein, the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the first time unit in the number of frequency hoppings corresponding to P time units, and the phase compensation period corresponding to P time units is the number of frequency hoppings in P time units, or the total duration of P time units, or the number of times or opportunities to transmit the reference signal in P time units. This implementation shows factors that need to be further considered in generating the first reference signal, and more comprehensively considers various factors to generate the first reference signal.

[0014] Based on the first or second aspect, in one possible implementation, the starting frequency domain position occupied by the first reference signal... N0 and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit; or,

[0015] The starting frequency domain position occupied by the first reference signal N0, β and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit; or,

[0016] The starting frequency domain position occupied by the first reference signal N0 and The parameters configured for the network device are f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units; or...

[0017] The starting frequency domain position occupied by the first reference signal is N0(t0) = N0 + f(t0), where N0 is the parameter configured by the network device, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod means modulo, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units.

[0018] This implementation illustrates some methods for determining the first starting frequency domain position, which is beneficial for the implementation of the scheme. It facilitates the design of continuous frequency domain resources occupied by multi-hop reference signals, and makes it easier for the receiver to jointly receive multi-hop reference signals.

[0019] Based on the first or second aspect, in one possible implementation, the first phase compensation value α is the cyclic shift value, and t0 is the local frequency hopping index of the first time unit. The bandwidth occupied by the first frequency resource is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the number of frequency hoppings in the P time units; or,

[0020] First phase compensation value α is the cyclic shift value, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod represents the remainder. Let t0 be the bandwidth occupied by the first frequency resource, t0 be the local frequency hopping index of the first time unit, and t0 be the frequency hopping index corresponding to the number of frequency hoppings in the first time unit across P time units. Let H be the phase compensation period corresponding to the P time units, and H be the phase compensation value corresponding to the P time units, which is either the number of frequency hoppings in the P time units, the total duration of the P time units, or the number of times or opportunities to transmit reference signals in the P time units; or...

[0021] The first sub-bandwidth is one of the sub-bandwidths within the total bandwidth used to carry the reference signal; the first phase compensation value. α is the cyclic shift value, f(t′0) = (t′0 + 1) mod N hop Alternatively, f(t′0) = (3t′0 + 1) mod N hop Alternatively, f(t′0) = (a × t′0 + 1) mod N hop , Let N be the bandwidth occupied by the first frequency resource, t0 be the local frequency hopping index of the first time unit, and t0′ be the global frequency hopping index of the first time unit. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in P time units, and the global frequency hopping index of the first time unit is the frequency hopping index corresponding to the total number of frequency hoppings of the reference signal carried by the first time unit in the total bandwidth. hop This represents the total number of frequency hopping operations per time unit occupied by the reference signal carried over the total bandwidth. This implementation illustrates some possible calculation methods for the first phase compensation value, which is beneficial for the scheme's implementation. As shown in the above formula, the first phase compensation value is related to the cyclic shift value and the bandwidth corresponding to the first frequency resource, thus facilitating the design of corresponding phase compensation values ​​for each time unit to achieve phase continuity of the reference signal across different time units.

[0022] Based on the first aspect, in one possible implementation, the method further includes: a first device generating a second reference signal based on a second phase compensation value; wherein the second reference signal occupies a second time unit, the second phase compensation value is the phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal; the first device transmits the second reference signal to a second device. In this implementation, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal. This enables the receiving end to jointly receive the first reference signal and the second reference signal, and perform channel estimation using the first reference signal and the second reference signal, thereby improving the channel estimation accuracy and performance.

[0023] Based on the second aspect, in one possible implementation, the method further includes: a second device receiving a second reference signal from a first device, wherein the second reference signal occupies a second time unit, the second reference signal is generated based on a second phase compensation value, the second phase compensation value is the phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal. In this implementation, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal. This enables the receiving end to jointly receive the first reference signal and the second reference signal, and perform channel estimation using the first reference signal and the second reference signal, thereby improving the channel estimation accuracy and performance.

[0024] Based on the first or second aspect, in one possible implementation, the first frequency resource and the second frequency resource are two consecutive frequency segments. Furthermore, the phases of the first reference signal and the second reference signal are continuous. This facilitates the receiver's joint use of the first and second reference signals for channel estimation, thereby improving channel estimation performance.

[0025] Based on the first or second aspect, in one possible implementation, the phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource is α + 2eπ, where e is an integer. This ensures that the first and second reference signals are phase-continuous. Continuous multi-hop reference signals are also phase-continuous; that is, any two adjacent multi-hop reference signals are phase-continuous. This facilitates the receiver's joint reception of multi-hop reference signals and enables channel estimation based on these signals, thereby improving channel estimation performance.

[0026] Based on the first or second aspect, in one possible implementation, the sequence used to generate the first reference signal carried on the first subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the first reference signal carried on the last subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the second reference signal on the first subcarrier of the second frequency resource occupation is as follows: or, Where t0 is the local frequency hopping index of the first time unit, and t1 is the local frequency hopping index of the second time unit. Let α be the bandwidth occupied by the first frequency resource, and α be the cyclic shift value. The first and second frequency resources belong to the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2. Both the first and second time units belong to P time units. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. The local frequency hopping index of the second time unit is the frequency hopping index corresponding to the number of frequency hoppings of the second time unit in the P time units. It is r u,v (0) conjugate, It is r u,v (M t0 -1) conjugate, or r u,v (0) = r q [0], or N ZC for The sequence length q is determined by u and v, where u is... The sequence group number, v is The serial number.

[0027] In this implementation, the phase relationship between the first reference signal carried on the last subcarrier occupied by the first frequency resource and the second reference signal on the first subcarrier occupied by the second frequency resource is characterized by the sequence relationship. This ensures that the first and second reference signals are phase-continuous, facilitating joint reception at the receiver.

[0028] A third aspect of this application provides a signal generation and transmission method. This method is applied to a first device, which may be a terminal device, a network device (such as an access network device or a core network device), a component within the terminal device or network device (e.g., a processor, circuit, chip, or chip system), a logic module or software capable of implementing all or part of the functions of the terminal device, or a logic module or software capable of implementing all or part of the functions of the network device. The following description uses the first device as an example. The method includes: the first device generating a first reference signal and a second reference signal, the first reference signal occupying a first frequency resource, the second reference signal occupying a second frequency resource, the first frequency resource being related to the second frequency resource, and the phases of the first reference signal and the second reference signal being continuous; the first device transmitting or outputting the first reference signal and the second reference signal.

[0029] In the above technical solution, the first device transmits or outputs a first reference signal and a second reference signal. The first reference signal occupies a first frequency resource, and the second reference signal occupies a second frequency resource. The first frequency resource is related to the second frequency resource, and the phases of the first reference signal and the second reference signal are continuous. This facilitates the receiving end to jointly receive the first reference signal and the second reference signal, and to perform channel estimation using the first and second reference signals, thereby improving the accuracy and performance of channel estimation.

[0030] A fourth aspect of this application provides a signal receiving method applied to a second device. For example, the second device may be a terminal device, a network device (e.g., an access network device or a core network device), or a component within the terminal device or network device (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the terminal device, or a logic module or software capable of implementing all or part of the functions of the network device. The following description uses a second device as an example. The method includes: the second device receiving a first reference signal and a second reference signal from a first device. The first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal.

[0031] In the above technical solution, the second device receives a first reference signal and a second reference signal from the first device. The first reference signal occupies a first frequency resource, and the second reference signal occupies a second frequency resource. The first and second frequency resources are related, and the phase of the first and second reference signals is continuous. This enables the second device to perform channel estimation using both the first and second reference signals, thereby improving channel estimation accuracy and performance.

[0032] Based on the fourth aspect, in one possible implementation, the method further includes: a second device performing channel estimation based on a first reference signal and a second reference signal. This achieves joint processing of the reference signals, improving channel estimation performance.

[0033] Based on the third or fourth aspect, in one possible implementation, the first frequency resource and the second frequency resource are two consecutive frequency segments. Furthermore, the phases of the first reference signal and the second reference signal are continuous. This facilitates the receiver's joint use of the first and second reference signals for channel estimation, thereby improving channel estimation performance.

[0034] Based on the third or fourth aspect, in one possible implementation, the number of subcarriers occupied by the first frequency resource is the same as the number of subcarriers occupied by the second frequency resource. This ensures that each hop of the multi-hop reference signal occupies the same bandwidth, and the multi-hop reference signal occupies multiple evenly spaced bandwidths. For example, a ten-hop reference signal corresponds to ten evenly spaced bandwidths, with each hop occupying one bandwidth.

[0035] Based on the third or fourth aspect, in one possible implementation, the first reference signal occupies the first time unit, and the second reference signal occupies the second time unit.

[0036] Based on the third or fourth aspect, in one possible implementation, the first reference signal is generated according to a first phase compensation value, which is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate the phase of the first reference signal. In this implementation, the first phase compensation value is used to compensate the phase of the first reference signal. The first reference signal can be understood as a one-hop reference signal. The technical solution of this application achieves phase compensation for the one-hop reference signal transmitted in the first time unit. This facilitates the establishment of phase correlation between multi-hop reference signals transmitted in multiple time units.

[0037] Based on the third or fourth aspect, in one possible implementation, the first frequency resource belongs to the first sub-bandwidth, or in other words, the first frequency resource is within the frequency range of the first sub-bandwidth, and the reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2. In this implementation, the total bandwidth is divided into multiple sub-bandwidths, thereby facilitating the transmission of the reference signal using the technical solution of this application within each sub-bandwidth, so that the receiving end can jointly receive the reference signal within the sub-bandwidth, thereby improving the channel estimation performance.

[0038] Based on the third or fourth aspect, in one possible implementation, the first reference signal is generated according to a first sequence; wherein, the first sequence Or for Or for Or for t0 is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the first time unit in the number of frequency hopping times corresponding to P time units; α is the cyclic shift value, p(t0) is the first phase compensation value, and m0 is the order of the subcarriers occupied by the first frequency resource among the subcarriers occupied by the first frequency resource. or r u,v (m0)=r q [m0],N ZC for The length q is determined by u and v, where u is... The sequence group number, v is The sequence number. In this implementation, the first reference signal is generated from a first sequence. As can be seen from the expression of the first sequence, a first phase compensation value is introduced into the first sequence, thereby achieving phase compensation for the first reference signal. This enables the implementation of the scheme.

[0039] Based on the third or fourth aspect, in one possible implementation, the first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; the first reference signal is generated based on at least one of the following: the starting frequency domain position occupied by the first reference signal, the phase compensation period corresponding to P time units, the local frequency hopping index of the first time unit, the bandwidth size occupied by the first frequency resource, the total number of frequency hoppings in the time units occupied by the reference signal carried on the total bandwidth, and a first phase compensation value; wherein, the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in P time units, and the phase compensation period corresponding to P time units is the number of frequency hoppings in P time units, or the total duration of P time units, or the number of times or opportunities to transmit the reference signal in P time units. This implementation shows factors that need to be further considered in generating the first reference signal, providing a more comprehensive consideration of various factors to generate the first reference signal.

[0040] Based on the third or fourth aspect, in one possible implementation, the starting frequency domain position occupied by the first reference signal... N0 and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit; or, the starting frequency domain position occupied by the first reference signal. N0, β and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit; or, the starting frequency domain position occupied by the first reference signal. N0 and The parameters configured for the network device are f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units; or, the starting frequency domain position occupied by the first reference signal is N0(t0) = N0+f(t0), where N0 is the parameter configured for the network device, f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units. This implementation shows some methods for determining the first starting frequency domain position, which is beneficial for the implementation of the scheme. It facilitates the design of continuous frequency domain resources occupied by continuous multi-hop reference signals, and facilitates the joint reception of multi-hop reference signals by the receiver.

[0041] Based on the third or fourth aspect, in one possible implementation, the first phase compensation value α is the cyclic shift value, and t0 is the local frequency hopping index of the first time unit. The bandwidth occupied by the first frequency resource is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the number of frequency hoppings in the P time units; or,

[0042] First phase compensation value α is the cyclic shift value, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod represents the remainder. Let t0 be the bandwidth occupied by the first frequency resource, and t0 be the local frequency hopping index of the first time unit. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings in P time units of the first time unit; or...

[0043] The first sub-bandwidth is one of the sub-bandwidths within the total bandwidth used to carry the reference signal; the first phase compensation value. f(t′0)=(t′0+1)mod N hop Alternatively, f(t′0) = (3t′0 + 1) mod N hop Alternatively, f(t′0) = (a × t′0 + 1) mod N hop α is the cyclic shift value. Let N be the bandwidth occupied by the first frequency resource, t0′ be the global frequency hopping index of the first time unit, and N be the frequency hopping index corresponding to the total number of frequency hoppings in the time unit occupied by the reference signal carried by the first time unit on the total bandwidth. hop This represents the total number of frequency hopping operations per time unit occupied by the reference signal carried over the total bandwidth.

[0044] This implementation demonstrates some possible calculation methods for the first phase compensation value, which is beneficial for the implementation of the scheme. As shown in the above formula, the first phase compensation value is related to the cyclic shift value and the bandwidth corresponding to the first frequency resource, thus facilitating the design of corresponding phase compensation values ​​for each time unit to achieve phase continuity of the reference signal in different time units.

[0045] Based on the third or fourth aspect, in one possible implementation, the phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource is α + 2eπ, where e is an integer. This ensures that the first and second reference signals are phase-continuous. Furthermore, the phases of consecutive multi-hop reference signals are also continuous. That is, any two adjacent multi-hop reference signals are phase-continuous. This facilitates the receiver's joint reception of multi-hop reference signals and enables channel estimation based on these signals, thereby improving channel estimation performance.

[0046] Based on the third or fourth aspect, in one possible implementation, the sequence used to generate the first reference signal carried on the last subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the second reference signal on the first subcarrier of the second frequency resource occupation is as follows: or, Where t0 is the local frequency hopping index of the first time unit, and t1 is the local frequency hopping index of the second time unit. Let α be the bandwidth occupied by the first frequency resource, and α be the cyclic shift value. The first and second frequency resources belong to the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2. Both the first and second time units belong to P time units. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. The local frequency hopping index of the second time unit is the frequency hopping index corresponding to the number of frequency hoppings of the second time unit in the P time units. It is r u,v (0) conjugate, yes conjugate, , or r u,v (0) = r q [0],

[0047] N ZC for The length q is determined by u and v, where u is... The sequence group number, v is The sequence number is used to represent the phase relationship between the first reference signal carried on the last subcarrier occupied by the first frequency resource and the second reference signal carried on the first subcarrier occupied by the second frequency resource. This ensures that the first and second reference signals are phase-continuous, facilitating joint reception at the receiver.

[0048] The fifth aspect of this application provides a first device, comprising:

[0049] The processing module is used to generate a first reference signal based on a first phase compensation value. The first reference signal occupies a first time unit. The first phase compensation value is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate the phase of the first reference signal.

[0050] The transceiver module is used to send or output the first reference signal.

[0051] A sixth aspect of this application provides a second device, comprising:

[0052] The transceiver module is used to receive a first reference signal from the first device. The first reference signal occupies a first time unit. The first phase compensation value is the phase compensation value corresponding to the first time unit. The first reference signal is generated based on the first phase compensation value.

[0053] Based on the sixth aspect, in one possible implementation, the second device further includes a processing module for performing channel estimation based on the first reference signal.

[0054] Based on the fifth or sixth aspect, in one possible implementation, the first reference signal occupies a first frequency resource, the first frequency resource belongs to a first sub-bandwidth, or in other words, the first frequency resource is within the frequency range of the first sub-bandwidth, the reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2, and the first time unit is a time unit among the P time units.

[0055] Based on the fifth or sixth aspect, in one possible implementation, the first reference signal is generated according to a first sequence; wherein, the first sequence Or for Or for Or for t0 is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the first time unit in the number of frequency hopping times corresponding to P time units; α is the cyclic shift value, p(t0) is the first phase compensation value, and m0 is the order of the subcarriers occupied by the first frequency resource. or r u,v (m0)=r q [m0],N ZC for The sequence length q is determined by u and v, where u is... The sequence group number, v is The serial number.

[0056] Based on the fifth or sixth aspect, in one possible implementation, the first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; the first reference signal is generated based on at least one of the following information and the first phase compensation value: the starting frequency domain position occupied by the first reference signal, the phase compensation period corresponding to P time units, the local frequency hopping index of the first time unit, the bandwidth size occupied by the first frequency resource, the total number of frequency hoppings in the time units occupied by the reference signal carried on the total bandwidth, and the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the first time unit in the number of frequency hoppings corresponding to P time units, and the phase compensation period corresponding to P time units is the number of frequency hoppings in P time units, or the total duration of P time units, or the number of times or opportunities to transmit the reference signal in P time units.

[0057] Based on the fifth or sixth aspect, in one possible implementation, the starting frequency domain position occupied by the first reference signal... N0 and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit; or,

[0058] The starting frequency domain position occupied by the first reference signal N0, β and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit; or,

[0059] The starting frequency domain position occupied by the first reference signal N0 and M t0 The parameters configured for the network device are f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units; or...

[0060] The starting frequency domain position occupied by the first reference signal is N0(t0) = N0 + f(t0), where N0 is the parameter configured by the network device, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod means modulo, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units.

[0061] Based on the fifth or sixth aspect, in one possible implementation, the first phase compensation value α is the cyclic shift value, and t0 is the local frequency hopping index of the first time unit. The bandwidth occupied by the first frequency resource is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the number of frequency hoppings in the P time units; or,

[0062] First phase compensation value α is the cyclic shift value, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod represents the remainder. Let t0 be the bandwidth occupied by the first frequency resource, t0 be the local frequency hopping index of the first time unit, and t0 be the frequency hopping index corresponding to the number of frequency hoppings in the first time unit across P time units. Let H be the phase compensation period corresponding to the P time units, and H be the phase compensation value corresponding to the P time units, which is either the number of frequency hoppings in the P time units, the total duration of the P time units, or the number of times or opportunities to transmit reference signals in the P time units; or...

[0063] The first sub-bandwidth is one of the sub-bandwidths within the total bandwidth used to carry the reference signal; the first phase compensation value. α is the cyclic shift value, f(t′0) = (t′0 + 1) mod N hop Alternatively, f(t′0) = (3t′0 + 1) mod N hop Alternatively, f(t′0) = (a × t′0 + 1) mod N hop , Let N be the bandwidth occupied by the first frequency resource, t0 be the local frequency hopping index of the first time unit, and t0′ be the global frequency hopping index of the first time unit. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in P time units, and the global frequency hopping index of the first time unit is the frequency hopping index corresponding to the total number of frequency hoppings of the reference signal carried by the first time unit in the total bandwidth. hop This represents the total number of frequency hopping operations per time unit occupied by the reference signal carried over the total bandwidth.

[0064] Based on the fifth aspect, in one possible implementation, the processing module is further configured to: generate a second reference signal according to a second phase compensation value; wherein the second reference signal occupies a second time unit, the second phase compensation value is the phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal; the transceiver module is further configured to: send the second reference signal to the second device.

[0065] Based on the sixth aspect, in one possible implementation, the transceiver module is further configured to: receive a second reference signal from the first device, wherein the second reference signal occupies a second time unit, the second reference signal is generated based on a second phase compensation value, the second phase compensation value is a phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal.

[0066] Based on the fifth or sixth aspect, in one possible implementation, the first frequency resource and the second frequency resource are two consecutive frequency resources.

[0067] Based on the fifth or sixth aspect, in one possible implementation, the phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource is α+2eπ, where e is an integer.

[0068] Based on the fifth or sixth aspect, in one possible implementation, the sequence used to generate the first reference signal carried on the first subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the first reference signal carried on the last subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the second reference signal on the first subcarrier of the second frequency resource occupation is as follows: or, Where t0 is the local frequency hopping index of the first time unit, and t1 is the local frequency hopping index of the second time unit. Let α be the bandwidth occupied by the first frequency resource, and α be the cyclic shift value. The first and second frequency resources belong to the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2. Both the first and second time units belong to P time units. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. The local frequency hopping index of the second time unit is the frequency hopping index corresponding to the number of frequency hoppings of the second time unit in the P time units. It is r u,v (0) conjugate, It is r u,v (M t0 -1) conjugate, or r u,v (0) = r q [0], or r u,v (M t0 -1)=r q [(M t0 -1)],N ZC for The sequence length q is determined by u and v, where u is... The sequence group number, v is 's serial number.

[0069] The seventh aspect of this application provides a first device, comprising:

[0070] The processing module is used to generate a first reference signal and a second reference signal. The first reference signal occupies a first frequency resource, and the second reference signal occupies a second frequency resource. The first frequency resource and the second frequency resource are related, and the phases of the first reference signal and the second reference signal are continuous.

[0071] The transceiver module is used to send or output the first reference signal and the second reference signal.

[0072] An eighth aspect of this application provides a second device, comprising:

[0073] The transceiver module is used to receive a first reference signal and a second reference signal from the first device. The first reference signal occupies a first frequency resource, and the second reference signal occupies a second frequency resource. The first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal.

[0074] Based on the eighth aspect, in one possible implementation, the second device further includes a processing module for performing channel estimation based on the first reference signal and the second reference signal.

[0075] Based on the seventh or eighth aspect, in one possible implementation, the first frequency resource and the second frequency resource are two consecutive frequency resources.

[0076] Based on the seventh or eighth aspect, in one possible implementation, the number of subcarriers occupied by the first frequency resource is the same as the number of subcarriers occupied by the second frequency resource.

[0077] Based on the seventh or eighth aspect, in one possible implementation, the first reference signal occupies the first time unit, and the second reference signal occupies the second time unit.

[0078] Based on the seventh or eighth aspect, in one possible implementation, the first reference signal is generated according to a first phase compensation value, which is a phase compensation value corresponding to the first time unit, and the first phase compensation value is used to compensate the phase of the first reference signal.

[0079] Based on the seventh or eighth aspect, in one possible implementation, the first frequency resource belongs to the first sub-bandwidth, or in other words, the first frequency resource is within the frequency range of the first sub-bandwidth, and the reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2.

[0080] Based on the seventh or eighth aspect, in one possible implementation, the first reference signal is generated according to a first sequence; wherein, the first sequence Or for Or for Or for t0 is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the first time unit in the number of frequency hopping times corresponding to P time units; α is the cyclic shift value, p(t0) is the first phase compensation value, and m0 is the order of the subcarriers occupied by the first frequency resource among the subcarriers occupied by the first frequency resource. or r u,v (m0)=r q [m0],N ZC for The sequence length q is determined by u and v, where u is... The sequence group number, v is The serial number.

[0081] Based on the seventh or eighth aspect, in one possible implementation, the first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; the first reference signal is generated based on at least one of the following: the starting frequency domain position occupied by the first reference signal, the phase compensation period corresponding to P time units, the local frequency hopping index of the first time unit, the bandwidth size occupied by the first frequency resource, the total number of frequency hoppings in the time units occupied by the reference signal carried on the total bandwidth, and the first phase compensation value; wherein, the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in P time units, and the phase compensation period corresponding to P time units is the number of frequency hoppings in P time units, or the total duration of P time units, or the number of times or opportunities to transmit the reference signal in P time units.

[0082] Based on the seventh or eighth aspect, in one possible implementation, the starting frequency domain position occupied by the first reference signal... N0 and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit; or, the starting frequency domain position occupied by the first reference signal. N0, β and M t0For the parameters configured for the network device, t0 is the local frequency hopping index of the first time unit; or, the starting frequency domain position occupied by the first reference signal N0(t0) = N0 + f(t0) × M t0 N0 and The parameters configured for the network device are f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units; or, the starting frequency domain position occupied by the first reference signal is N0(t0) = N0+f(t0), where N0 is the parameter configured for the network device, f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units.

[0083] Based on the seventh or eighth aspect, in one possible implementation, the first phase compensation value α is the cyclic shift value, and t0 is the local frequency hopping index of the first time unit. The bandwidth occupied by the first frequency resource is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the number of frequency hoppings in the P time units; or,

[0084] First phase compensation value α is the cyclic shift value, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod represents the remainder. Let t0 be the bandwidth occupied by the first frequency resource, and t0 be the local frequency hopping index of the first time unit. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings in P time units of the first time unit; or...

[0085] The first sub-bandwidth is one of the sub-bandwidths within the total bandwidth used to carry the reference signal; the first phase compensation value. f(t′0)=(t′0+1)mod N hop Alternatively, f(t′0) = (3t′0 + 1) mod N hop Alternatively, f(t′0) = (a × t′0 + 1) mod N hop α is the cyclic shift value. Let N be the bandwidth occupied by the first frequency resource, t0′ be the global frequency hopping index of the first time unit, and N be the frequency hopping index corresponding to the total number of frequency hoppings in the time unit occupied by the reference signal carried by the first time unit on the total bandwidth. hop This represents the total number of frequency hopping operations per time unit occupied by the reference signal carried over the total bandwidth.

[0086] Based on the seventh or eighth aspect, in one possible implementation, the phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource is α+2eπ, where e is an integer.

[0087] Based on the seventh or eighth aspect, in one possible implementation, the sequence used to generate the first reference signal carried on the first subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the first reference signal carried on the last subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the second reference signal on the first subcarrier of the second frequency resource occupation is as follows: or, Where t0 is the local frequency hopping index of the first time unit, and t1 is the local frequency hopping index of the second time unit. Let α be the bandwidth occupied by the first frequency resource, and α be the cyclic shift value. The first and second frequency resources belong to the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2. Both the first and second time units belong to P time units. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. The local frequency hopping index of the second time unit is the frequency hopping index corresponding to the number of frequency hoppings of the second time unit in the P time units. It is r u,v (0) conjugate, yes conjugate, , or r u,v (0) = r q [0], or N ZC for The sequence length q is determined by u and v, where u is... The sequence group number, v is The serial number.

[0088] The ninth aspect of this application provides a first device, which may be a terminal device or a network device, or a module or unit (e.g., a chip, chip system, or circuit) in the terminal device or network device that corresponds to the execution of the methods, operations, steps, or actions described in the first or third aspect, or a communication device that can be used in conjunction with the terminal device or network device.

[0089] The tenth aspect of this application provides a second device, which may be a terminal device or a network device, or a module or unit (e.g., a chip, chip system, or circuit) in the terminal device or network device that corresponds to the execution of the methods, operations, steps, or actions described in the second or fourth aspect, or a communication device that can be used in conjunction with the terminal device or network device.

[0090] The eleventh aspect of this application provides a first device, which may be a terminal device or a network device, or a module or unit (e.g., a chip, chip system, or circuit) in the terminal device or network device that corresponds to the execution of the methods, operations, steps, or actions described in the first or third aspect, or a communication device that can be used in conjunction with the terminal device or network device.

[0091] The twelfth aspect of this application provides a second device, which may be a terminal device or a network device, or a module or unit (e.g., a chip, chip system, or circuit) in the terminal device or network device that corresponds to the execution of the methods, operations, steps, or actions described in the second or fourth aspect, or a communication device that can be used in conjunction with the terminal device or network device.

[0092] The thirteenth aspect of this application provides an apparatus including a processor for calling a computer program or computer instructions in memory, such that the processor is configured to perform any implementation of any of the first to fourth aspects.

[0093] Optionally, the apparatus also includes a transceiver, the processor being used to control the transceiver to perform any of the implementations of any one of the first to fourth aspects.

[0094] Optionally, the processor is integrated with the memory.

[0095] The fourteenth aspect of this application provides a computer program product including computer instructions, characterized in that, when run on a computer, it causes the computer to perform any of the implementations of any one of the first to fourth aspects.

[0096] The fifteenth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform any of the implementations of any one of the first to fourth aspects.

[0097] The sixteenth aspect of this application provides a chip device including a processor for calling a computer program or computer instructions in memory to cause the processor to execute any one of the implementations of the first to fourth aspects described above.

[0098] Optionally, the processor is coupled to the memory via an interface.

[0099] The seventeenth aspect of this application provides a communication system comprising a first device as shown in the first aspect and a second device as shown in the second aspect. Alternatively, the communication system comprises a first device as shown in the third aspect and a second device as shown in the fourth aspect.

[0100] As can be seen from the above technical solution, the first device generates a first reference signal based on a first phase compensation value. The first reference signal occupies a first time unit, and the first phase compensation value is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate the phase of the first reference signal. Then, the first device transmits or outputs the first reference signal. Therefore, it can be seen that the first device generates a first reference signal based on a first phase compensation value. The first phase compensation value is used to compensate the phase of the first reference signal. The first reference signal can be understood as a one-hop reference signal. The technical solution of this application achieves phase compensation for the one-hop reference signal transmitted in the first time unit. This facilitates the establishment of phase correlation between multi-hop reference signals transmitted in multiple time units, enabling the receiving end to jointly receive the multi-hop reference signal and perform channel estimation using the multi-hop reference signal, thereby improving channel estimation accuracy and performance. Attached Figure Description

[0101] Figure 1 This is a schematic diagram of a communication system according to an embodiment of this application;

[0102] Figure 2 This is another schematic diagram of the communication system according to an embodiment of this application;

[0103] Figure 3 This is a schematic diagram of an open RAN (O-RAN or ORAN) system according to an embodiment of this application;

[0104] Figure 4 This is a schematic diagram of the structure of an access network device according to an embodiment of this application;

[0105] Figure 5a This is a schematic diagram of a two-hop frequency hopping signal.

[0106] Figure 5b This is another schematic diagram of an existing two-hop frequency hopping signal;

[0107] Figure 5c A schematic diagram showing how a frequency-hopping signal can be mapped to a subcarrier;

[0108] Figure 6This is a schematic diagram of one embodiment of the signal generation and transmission method and the signal reception method of this application;

[0109] Figure 7 This is a schematic diagram of an H-hop frequency hopping signal according to an embodiment of this application;

[0110] Figure 8 This is another schematic diagram of the H-hop frequency hopping signal in an embodiment of this application;

[0111] Figure 9 This is a schematic diagram of another embodiment of the signal generation and transmission method and the signal reception method of this application;

[0112] Figure 10 This is a schematic diagram of the structure of the first device according to an embodiment of this application;

[0113] Figure 11 This is a schematic diagram of the structure of the second device according to an embodiment of this application;

[0114] Figure 12 This is a schematic diagram of the structure of a device according to an embodiment of this application;

[0115] Figure 13 This is another structural schematic diagram of the device according to an embodiment of this application. Detailed Implementation

[0116] This application provides a reference signal generation and transmission method, a reference signal reception method, and an apparatus. The first apparatus generates a first reference signal based on a first phase compensation value. The first phase compensation value is used to compensate the phase of the first reference signal. The first reference signal can be understood as a one-hop signal. The technical solution of this application achieves phase compensation for the one-hop signal transmitted in a first time unit. This facilitates the establishment of phase correlation between multi-hop signals transmitted in multiple time units, enabling the receiving end to jointly receive the multi-hop signal and perform channel estimation using the multi-hop signal, thereby improving channel estimation accuracy and performance.

[0117] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0118] References to "one embodiment" or "some embodiments" as described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0119] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0120] It is understood that in this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information to indicate A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A.

[0121] The technical solutions of this application can be applied to various communication systems. For example, 5th generation (5G) systems, new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication system (UMTS), future mobile communication systems, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Things (IoT) communication systems, industrial internet communication systems, or satellite communication systems, etc. The wireless communication systems involved in this application also include, but are not limited to, narrowband Internet of Things (NB-IoT) systems.

[0122] The following is combined Figure 1 and Figure 2 This application applies to two possible scenarios.

[0123] Figure 1 This is a schematic diagram of a communication system according to an embodiment of this application. Figure 1 As shown, the communication system includes a network device 101 and a terminal device 102. A communication connection can be established between the network device 101 and the terminal device 102, and the technical solutions provided in this application can be executed.

[0124] Figure 2 This is another schematic diagram of the communication system according to an embodiment of this application. For example... Figure 2 As shown, the communication system includes a network device 201, a terminal device 202, and a relay node 203. The network device 201 and the terminal device 202 can establish a connection through the relay node 203 and execute the technical solution provided in this application.

[0125] The communication systems to which this application applies include terminal equipment and network equipment. Terminal equipment and network equipment are described below.

[0126] Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), fixed wireless access (FWA), customer premises equipment (CPE), etc., refers to devices that include wireless communication capabilities (providing voice / data connectivity to users). Examples include handheld devices with wireless connectivity, in-vehicle devices, and machine-type communication (MTC) terminals. Currently, terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving (e.g., drones, vehicles), wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. For example, wireless terminals in self-driving can be drones, helicopters, or airplanes. For example, wireless terminals in vehicle-to-everything (V2X) can be in-vehicle equipment, vehicle-mounted equipment, in-vehicle modules, vehicles, or ships. Wireless terminals in industrial control can be cameras, robots, or robotic arms. Wireless terminals in smart homes can be televisions, air conditioners, robot vacuums, speakers, or set-top boxes. The terminal device can also be a device or module that is connected to the communication system shown above and has corresponding communication functions. The terminal device usually contains a communication module, circuit or chip that performs the corresponding communication function, and the terminal device is also configured with program instructions for performing the corresponding communication function.

[0127] It should be noted that the terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuits, or a chip, chip system, processor, circuit, module, or control unit in the device or apparatus shown above; the specific application does not limit this. It should also be noted that in this application, when referring to a terminal device, it can refer to the terminal device itself, or to the chip, functional module, or integrated circuit in the terminal device that performs the method provided in this application; the specific application does not limit this.

[0128] A network device is a device deployed in a radio access network to provide wireless communication functions for terminal devices. Network devices may also be referred to as radio access network (RAN) entities, access nodes, network nodes, access network equipment, or communication devices, etc.

[0129] Specifically, the network equipment can be access network equipment for cellular systems related to the 3rd Generation Partnership Project (3GPP). For example, fourth-generation (4G) mobile communication systems, 5G mobile communication systems, or future mobile communication systems. The network equipment can also be access network equipment in open RAN (O-RAN or ORAN) or cloud radio access network (CRAN). Alternatively, the network equipment can also be access network equipment in a communication system resulting from the integration of two or more of the above communication systems.

[0130] Network equipment includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home-evolved Node B, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (Wi-Fi) systems, macro base station, micro base station, wireless relay node, donor node, radio controller in CRAN scenarios, wireless backhaul node, transmission point (TP), or transmission and receiving point (TRP). Network equipment can also be access network equipment in 5G mobile communication systems. For example, a next-generation NodeB (gNB) in a new radio (NR) system, a transmission and reception point (TRP), a TP, or one or more antenna panels (including multiple antenna panels) of a base station in a 5G mobile communication system. Alternatively, network equipment can also be network nodes constituting a gNB or transmission point. Examples include a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). CUs and DUs can be separate entities or included in the same network element. For example, a BBU. RUs can be included in radio equipment or radio units. For example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). Alternatively, network equipment can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, in V2X technology, network devices can be roadside units (RSUs).

[0131] It should be noted that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open centralized unit (O-CU) or an open CU, DU can also be called an open distributed unit (O-DU), centralized unit control plane (CU-CP) can also be called an open centralized unit control plane (O-CU-CP) or an open CU-CP, centralized unit user plane (CU-UP) can also be called an open centralized unit user plane (O-CU-UP) or an open CU-UP, and RU can also be called an open radio unit (O-RU). This application does not impose any specific limitations. Any of the units CU, CU-CP, CU-UP, DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0132] The ORAN system is described below. Figure 3 This is a schematic diagram of an ORAN system according to an embodiment of this application. The ORAN system includes a core network, access network equipment, and UEs. Optionally, the ORAN system may further include... Figure 3 Other components besides those shown are not specifically limited in this application.

[0133] Access network devices can communicate with the core network (CN) via a backhaul link. Access network devices can also communicate with the UE via an air interface. Specifically, the BBU in the access network device communicates with the core network via a backhaul link. The RU in the access network device communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located.

[0134] A BBU consists of at least one CU and at least one DU, and the CU and DU can communicate with each other via at least one midhaul link.

[0135] One possible implementation is, such as Figure 4As shown, the CU is a logical node that carries the radio resource control (RRC), service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of access network equipment. The CU can connect to network nodes such as the core network through interfaces, such as the E2 interface. Optionally, the CU can have some core network functions. The CU (e.g., the PDCP layer and / or higher) connects to the DU (e.g., the radio link control (RLC) layer and lower layers of the DU) through interfaces, such as the F1 interface. Optionally, the F1 interface can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, defining the signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0136] Optional, such as Figure 4As shown, the CU can be divided into CU-CP and CU-UP. CU-CP is a logical node carrying the control plane (PDCP-C) layer, which carries the RRC layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the user plane (PDCP-U) layer, which carries the SDAP layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the user plane function (UPF) in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above CU and DU configurations are merely examples. In practical applications, the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or to have only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements. For example, based on latency, functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.

[0137] One possible implementation is, such as Figure 4 As shown, a DU is a logical node that carries the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.

[0138] One possible implementation is, such as Figure 4 As shown, the RU is a logical node that carries both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Low-PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.

[0139] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through the Lower-Layer Split CUS-Plane (LLS-CUS) interface. LLS-CUS may include a Lower-Layer Split control (LLS-C) interface and a Lower-Layer Splituser (LLS-U) interface, providing the control plane (C-Plane) and user plane (U-Plane) respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via a Lower-Layer Split management (LLS-M) interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.

[0140] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.

[0141] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples.

[0142] It should be noted that network devices can be devices or apparatuses with chips, or devices or apparatuses with integrated circuits, or chips, chip systems, modules, processors, circuits, or control units in the devices or apparatuses shown above; this application does not impose any specific limitations. It should also be noted that in this application, the term "network device" can refer to the network device itself, or to chips, functional modules, or integrated circuits within the network device that implement the methods provided in this application; this application does not impose any specific limitations.

[0143] The communication system to which the technical solution provided in this application is applicable includes a first device and a second device. The first device is a terminal device, and the second device is a network device. Alternatively, the first device is a network device, and the second device is a terminal device; this application does not specify the particular device.

[0144] During uplink channel measurement, SRS (Short-Range Signal) can be transmitted via narrowband using frequency hopping. Terminal devices transmitting SRS via narrowband converges terminal power onto that narrowband, improving the performance of network devices in channel estimation based on this SRS. Terminal devices can also transmit multi-hop SRS via frequency hopping, allowing network devices to obtain channel information at various frequency positions. However, each hop in a multi-hop SRS is generated independently, and network devices perform channel estimation based on a single independent SRS. Since each hop SRS occupies a relatively small bandwidth, this results in lower channel estimation accuracy and poorer channel estimation performance.

[0145] For example, such as Figure 5a or Figure 5b The two frequency-hopping signals can be transmitted at different times (e.g., T0 and T1). The time-domain resources occupied by the two frequency-hopping signals can be continuous or discontinuous. The frequency-domain resources occupied by the two frequency-hopping signals can also be continuous or discontinuous. The frequency resources occupied by each frequency-hopping signal can include M subcarriers.

[0146] Frequency hopping signals can be transmitted through sequences Generate. Among them, or Sequence length N ZC ≤Q. For example, m = 0, 1, ..., Q-1, or r q [m] = x q [mmod N ZC ], m=0,1,…,M. Where, m = 0, 1, ..., N ZC -1, where q is determined by u and v, where u is a sequence The sequence group number, v is the sequence The serial number, mod is the modulo or remainder. Figure 5c The generation sequence of the frequency hopping signal on each subcarrier is shown.

[0147] As can be seen from the above technical solution, each frequency hopping signal is generated independently, and the network device performs channel estimation based on an independent one-hop frequency hopping signal. However, the bandwidth occupied by a one-hop frequency hopping signal is relatively small, resulting in low channel estimation accuracy and poor channel estimation performance. This application provides a corresponding technical solution, which can be found in the relevant descriptions of the embodiments below.

[0148] The technical solution of this application is described below with reference to specific embodiments.

[0149] Figure 6 This is a schematic diagram of one embodiment of the signal generation and transmission method and the signal reception method according to this application. Please refer to... Figure 6 The methods include:

[0150] 601. The first device generates a first reference signal based on the first phase compensation value.

[0151] The first reference signal occupies a first time unit, and the first phase compensation value is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate for the phase of the first reference signal.

[0152] Optionally, the first reference signal occupies the first frequency resource.

[0153] Optionally, the first frequency resource belongs to the first sub-bandwidth, or in other words, the first frequency resource is within the frequency range of the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units. P is an integer greater than or equal to 2. The first time unit is a time unit within the P time units.

[0154] It should be understood that the first reference signal can be all the subcarriers occupying the first frequency resource, or can be some of the subcarriers occupying the first frequency resource. For example, the first reference signal occupies the odd subcarriers of the first frequency resource. For example, the first reference signal occupies the even subcarriers of the first frequency resource. For another example, the first reference signal occupies the subcarriers with index kC+x in the first frequency resource, where C is any one of 1, 2, 4, 8, 12, 16, 24, 32, and C represents the frequency domain comb division interval. x = 0, 1, …, C-1. The bandwidth of the first frequency domain resource is ).

[0155] It should be noted that the P time units are either P consecutive time units or P non-consecutive time units, and the present application does not specifically limit this. The durations of different time units among the P time units can be the same or different, and the present application does not specifically limit this. For example, a time unit can be a time domain symbol, a time slot, a subframe, or a frame. Optionally, the time domain symbol can be an orthogonal frequency division multiplexing (OFDM) symbol.

[0156] The first time unit can be one of the P time units. Signals (i.e., reference signals) are transmitted on the P time units, and the frequency resources occupied by the signals transmitted on different time units are different, that is, the signals are transmitted on the P time units in a frequency hopping manner. The number of frequency hopping times on the P time units can be the number of frequency hopping times of the frequency hopping signals (i.e., reference signals) transmitted on the P time units. For example, as Figure 7 shown, the number of frequency hopping times on the P time units is H. The first reference signal can be one of the reference signals of one hop as Figure 7 shown. For example, the first reference signal is the first hop reference signal as Figure 7 shown.

[0157] It should be noted that the first sub-bandwidth is the total bandwidth for transmitting the reference signal, or the first sub-bandwidth is one of the sub-bandwidths in the total bandwidth for transmitting the reference signal.

[0158] Optionally, P reference signals of P hops are transmitted on the P time units. One reference signal is transmitted on each time unit. That is, in the following text, H = P. Or, P / 2 reference signals of P hops are transmitted on the P time units, that is, one reference signal corresponds to every two time units. That is, H < P in the following text, for example, H = P / 2.

[0159] For the first sub-bandwidth, which is the total bandwidth used to transmit the reference signal, the local frequency hopping index of the first time unit and the global frequency hopping index of the first time unit are the same, that is, both are the frequency hopping index in the number of frequency hoppings corresponding to the time units (i.e., P time units) occupied by the reference signal carried by the first time unit on the total bandwidth. For example, as Figure 7 As shown, the total bandwidth includes the subcarriers occupied by the first hop reference signal to the Hth hop reference signal.

[0160] For the first sub-bandwidth, which is one of the sub-bandwidths in the total bandwidth used to transmit the reference signal, the global frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings in the time unit occupied by the reference signal carried by the first time unit in the total bandwidth. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings in the first time unit across P time units. For example, as... Figure 7 As shown, the first sub-bandwidth includes subcarriers from the first hop reference signal to the Hth hop reference signal. The total bandwidth may include multiple sub-bandwidths, each including one or more subcarriers. The first reference signal is as follows: Figure 7 The first-hop reference signal shown has a local frequency hopping index of 1 in the first time unit, i.e., the first hop. The total bandwidth includes four sub-bandwidths, each carrying four-hop reference signals, meaning the reference signals carried in each sub-bandwidth occupy 4 frequency hopping times in the time unit. Therefore, the total bandwidth carries 16 frequency hopping times in the time unit. The first sub-bandwidth is the third sub-bandwidth in the total bandwidth. Therefore, when the local frequency hopping index of the first time unit is 0, the global frequency hopping index of the first time unit is 8. When the local frequency hopping index of the first time unit is 1, the global frequency hopping index of the first time unit is 9. When the local frequency hopping index of the first time unit is 2, the global frequency hopping index of the first time unit is 10. When the local frequency hopping index of the first time unit is 3, the global frequency hopping index of the first time unit is 11. It should be noted that in this paper, both the local and global frequency hopping indices start from 0. Of course, the local frequency hopping index can also start from 1, and the global frequency hopping index can also start from 1.

[0161] Optionally, the total bandwidth corresponds to a carrier; or the total bandwidth corresponds to a frequency band. The first sub-bandwidth corresponds to a bandwidth part (BWP).

[0162] Optionally, the first phase compensation value is determined based on at least one of the following: the cyclic shift value, the bandwidth occupied by the first frequency resource, the starting frequency domain position occupied by the first reference signal, the local frequency hopping index of the first time unit, the phase compensation period corresponding to P time units, the total number of frequency hopping times in the time units occupied by the reference signal carried on the total bandwidth, and the global frequency hopping index of the first time unit.

[0163] The total number of frequency hopping times in the time units occupied by the reference signal carried on the total bandwidth is the number of frequency hopping times for transmitting the reference signal in the time units occupied by the reference signal carried on the total bandwidth. The phase compensation period corresponding to P time units is the number of frequency hopping times in P time units, or the total duration of P time units, or the number of times or opportunities to transmit the reference signal in P time units, or the number of frequency hopping times H corresponding to P time units.

[0164] For example, such as Figure 7 As shown, the number of frequency hopping times over P time units is H, which means the phase compensation period corresponding to P time units is H. Therefore, the unit of the phase compensation period corresponding to P time units can be the number of frequency hopping times. H = 2 times, or H = 4 times, or H = 6 times.

[0165] For example, the phase compensation period H corresponding to P time units is the total duration of the P time units, i.e., the absolute time of the P time units. For example, the total duration of the P time units could be 5ms, 10ms, or 20ms. Alternatively, the phase compensation period H corresponding to P time units could be the number of time slots or time-domain symbols occupied by the P time units. For example, the phase compensation period H corresponding to P time units could be 5, 10, 20, or 40 time-domain symbols. Furthermore, the phase compensation period H corresponding to P time units could be 2, 4, 6, 8, 12, or 16 time-domain symbols.

[0166] For example, such as Figure 7 As shown, the unit of the phase compensation period corresponding to P time units can be the number of transmissions. H = 2 times, or H = 4 times, or H = 6 times.

[0167] It should be noted that the phase compensation period corresponding to P time units can also be called frequency hopping group, that is, a set of multiple frequency hopping.

[0168] It should be noted that at least one of the following information may be predefined, or specified by the communication protocol, or configured by the network device for the terminal device: the first phase compensation value, the cyclic shift value, the bandwidth occupied by the first frequency resource, the starting frequency domain position occupied by the first reference signal, the local frequency hopping index of the first time unit, the phase compensation period corresponding to P time units, the value of the frequency hopping number P in the P time units, the total number of frequency hopping times in the time units occupied by the reference signal carried on the total bandwidth, and the global frequency hopping index of the first time unit. This application does not impose any specific restrictions on these information.

[0169] The following describes some methods for calculating the first phase compensation value. Other calculation methods are still applicable to this application, and this application does not limit them in any specific way.

[0170] I. First Phase Compensation Value Where α is the cyclic shift value, and t0 is the local frequency hopping index of the first time unit. This represents the bandwidth occupied by the first frequency resource.

[0171] II. First Phase Compensation Value Where α is the cyclic shift value, f(t0) = t0, or f(t0) = (t0 + 1) mod H, or f(t0) = (at0 + 1) mod H, where mod represents the remainder, and a is an integer or a prime number, such as 3, 5, 7, 11, 13, 17, 19, 23, etc. Let t0 be the bandwidth occupied by the first frequency resource, and t0 be the local frequency hopping index of the first time unit. H is the phase compensation period corresponding to P time units. The phase compensation period corresponding to P time units is the number of frequency hopping times in P time units, or the total duration of P time units, or the number of times or opportunities to transmit reference signals in P time units.

[0172] III. First Phase Compensation Value Where α is the cyclic shift value, f(t0) = t0, or f(t0) = (t0 + 1) mod H, or f(t0) = (at0 + b) mod H, where mod represents the remainder, a and b are integers, or a is a prime number, such as 3, 5, 7, 11, 13, 17, 19, 23, etc. t0 represents the bandwidth occupied by the first frequency resource, and t0 represents the local frequency hopping index of the first time unit. H represents the phase compensation period corresponding to P time units. Please refer to the relevant introduction above for the phase compensation values ​​corresponding to P time units.

[0173] The above implementation method can also have other representations, which are not limited in this application.

[0174] IV. The first sub-bandwidth is one of the sub-bandwidths within the total bandwidth used to carry the reference signal. First phase compensation value. α is the cyclic shift value. Let t'0 be the bandwidth occupied by the first frequency resource, and t'0 be the global frequency hopping index of the first time unit. f(t'0) = (t'0 + 1) mod N hop Alternatively, f(t′0) = (3t′0 + 1) mod N hop Alternatively, f(t′0) = (a × t′0 + 1) mod N hop 'a' is an integer or a prime number, such as 3, 5, 7, 11, 13, 17, 19, 23, etc., N hopf(t′0) represents the total number of frequency hopping operations in the time unit occupied by the reference signal carried over the total bandwidth. Of course, f(t′0) can also be represented in other forms, which are not limited in this application.

[0175] Optionally, the first reference signal is generated based on at least one of the following: the starting frequency domain position occupied by the first reference signal, the phase compensation period corresponding to the P time units, the local frequency hopping index of the first time unit, the bandwidth occupied by the first frequency resource, the total number of frequency hopping times of the reference signal carried on the total bandwidth in the time units, and the first phase compensation value.

[0176] Optionally, the first reference signal is generated based on a first sequence. The first sequence can be represented by formula 1, formula 2, formula 3, formula 4, or formula 5:

[0177]

[0178] Where t0 is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the first time unit in the number of frequency hopping times corresponding to P time units. α is the cyclic shift value, p(t0) is the first phase compensation value, and m0 is the order of the subcarriers occupied by the first frequency resource among the subcarriers occupied by the first frequency resource. For example, as shown in Table 1 below, the number of subcarriers occupied by the first frequency resource is... There are 1 subcarrier. Therefore, m0 can take values ​​of 0, 1, 2, ... For the first subcarrier occupied by the first frequency resource, m0 = 0; for the second subcarrier occupied by the first frequency resource, m0 = 1, and so on. or r u,v (m0)=r q [m0],N ZC for The length q is determined by u and v, where u is... The sequence group number, v is The sequence number. In Formula 5 above, p(α,t0) is related to at least one of the following: the starting frequency domain position N0(t0) occupied by the first reference signal, the phase compensation period corresponding to the P time units, the local frequency hopping index of the first time unit, the bandwidth occupied by the first frequency resource, and the total number of frequency hopping times of the reference signal carried on the total bandwidth in the time units. Specifically, p(α,t0) can be expressed as follows: Formula 6, Formula 7, Formula 8, Formula 9, Formula 10, or Formula 11:

[0179] p(α,t0)=αm0-p(t0) Formula 6

[0180] p(α,t0)=-αm0-p(t0) Formula 7

[0181] p(α,t0)=αm0+p(t0) Formula 8

[0182]

[0183] p(α,t0)=α×(m0+f(t0)) Formula 10

[0184] p(α,t0)=α×(m0+N0(t0)) Formula 11

[0185] For f(t0), please refer to the relevant examples mentioned above; they will not be repeated here. For α and m0, please refer to the relevant introductions mentioned above. For N0(t0), please refer to the relevant introductions below.

[0186] Table 1

[0187]

[0188] Optionally, the starting frequency domain position occupied by the first reference signal is configured by the network device for the terminal device, or calculated according to relevant rules. Optionally, the starting frequency domain position occupied by the first reference signal is determined based on the starting frequency domain position of the first sub-bandwidth and / or the bandwidth size occupied by the first reference signal.

[0189] The following describes several possible methods for calculating the starting frequency domain position occupied by the first reference signal. Other calculation methods are still applicable to this application, and this application does not limit them specifically.

[0190] Implementation Method 1: The starting frequency domain position occupied by the first reference signal

[0191] Among them, N0 and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit. Optionally, N0 is the starting frequency domain position of the first sub-bandwidth. This refers to the bandwidth occupied by the first reference signal, which is the bandwidth occupied by the first frequency resource.

[0192] Implementation Method 2: The starting frequency domain position occupied by the first reference signal

[0193] Among them, N0, β and The parameters configured for the network device, where t0 is the local frequency hopping index of the first time unit. Optionally, N0 is the starting frequency domain position of the first sub-bandwidth. This refers to the bandwidth occupied by the first reference signal, which is the bandwidth occupied by the first frequency resource.

[0194] Optionally, if the first device or the second device is a network device, the value of β is related to the network device, and different network devices are configured with different values ​​of β.

[0195] Implementation method 3: The starting frequency domain position occupied by the first reference signal Among them, N0 and Parameters configured for network devices. f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units. f(t0) can be understood as the logical index of the frequency resources occupied by the first reference signal. For example, as... Figure 7 As shown, each hop in the H-hop reference signal has a corresponding logical index for its frequency resources. For example, the logical index of the frequency resources occupied by the first hop reference signal is 1, the logical index of the frequency resources occupied by the second hop reference signal is 2, and so on, with the logical index of the frequency resources occupied by the H-th hop reference signal being H. For another example, as... Figure 8 As shown, each hop in the H-hop reference signal has a corresponding logical index for its frequency resources. For example, the logical index of the frequency resources occupied by the first hop reference signal is 2, the logical index of the frequency resources occupied by the second hop reference signal is 3, and so on. The logical index of the frequency resources occupied by the (H-1)th hop reference signal is H, and the logical index of the frequency resources occupied by the Hth hop reference signal is 1. For example, when f(t0) = t0, as... Figure 7 As shown, the first reference signal is the first-hop reference signal, which occupies subcarriers 0 to M-1. For example, when f(t0) = (t0+1) mod H, as... Figure 8 As shown, the first reference signal is the first-hop reference signal, which occupies subcarriers M to 2M-1. It should be noted that... Figure 7 and Figure 8 In the example shown, each hop reference signal occupies M subcarriers, meaning each hop reference signal occupies the same bandwidth.

[0196] Implementation method 4: The starting frequency domain position occupied by the first reference signal is N0(t0) = N0 + f(t0), where N0 is the parameter configured by the network device, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod means modulo, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to P time units.

[0197] It should be noted that the starting frequency domain position occupied by the first reference signal is either the starting subcarrier occupied by the first reference signal, or the starting resource element (RE) occupied by the first reference signal, or the starting resource block (RB) occupied by the first reference signal.

[0198] Optionally, the first reference signal is an uplink reference signal. For example, the first reference signal is a sounding reference signal (SRS). In this implementation, the first device is a terminal device, and the second device is a network device.

[0199] Optionally, the first reference signal is a downlink reference signal. For example, the first reference signal is a channel state information reference signal (CSI-RS) or a demodulation reference signal (DMRS). In this implementation, the first device is a network device, and the second device is a terminal device.

[0200] Optional, Figure 6 The illustrated embodiment also includes step 601a, which may be performed before step 601.

[0201] 601a. ​​The second device sends first configuration information to the first device. Correspondingly, the first device receives the first configuration information from the second device.

[0202] The first configuration information is also used to indicate the first phase compensation value. For example, the first configuration information may indicate the cyclic shift value and the bandwidth occupied by the first frequency resource. This facilitates the first device in determining the first phase compensation value based on the cyclic shift value and the bandwidth occupied by the first frequency resource. For specific calculation methods, please refer to the foregoing related descriptions.

[0203] Optionally, the first configuration information is also used to indicate at least one of the following: cyclic shift value, starting frequency domain position occupied by the first reference signal, bandwidth size occupied by the first frequency resource, local frequency hopping index of the first time unit, phase compensation period corresponding to the first time unit, total number of frequency hopping times in the time unit occupied by the reference signal carried on the total bandwidth, or global frequency hopping index of the first time unit.

[0204] Optionally, the content indicated by the first configuration information mentioned above can also be indicated by different configuration information, which is not limited in this application.

[0205] Optional, Figure 6The illustrated embodiment also includes step 601b. Step 601b may be performed before step 601.

[0206] 601b. The first device sends capability information to the second device. Correspondingly, the second device receives the capability information from the first device.

[0207] This capability information is used to indicate that the first device is capable of transmitting a reference signal based on a phase compensation value. Optionally, the capability information may also include the phase compensation values ​​supported by the first device.

[0208] It should be noted that this is optional, if Figure 6 The illustrated embodiment also includes step 601a, and step 601b may be performed before step 601a.

[0209] 602. The first device transmits or outputs a first reference signal. Correspondingly, the second device receives the first reference signal from the first device.

[0210] Optionally, if the first device does not include a radio frequency (RF) unit, the first device is connected to the RF unit, the first device generates a first reference signal, and outputs a second reference signal to the RF unit. Then the RF unit sends the second reference signal to the second device.

[0211] Optionally, if the first device includes a radio frequency unit, the first device generates a second reference signal and sends the second reference signal to the second device.

[0212] Optional, Figure 6 The illustrated embodiment also includes step 603, which can be performed after step 602.

[0213] 603. The second device performs channel estimation based on the first reference signal.

[0214] For example, the first device is a terminal device, and the second device is a network device. The first reference signal is the SRS, and the network device estimates the channel information between the network device and the terminal device based on the SRS.

[0215] For example, the first device is a network device, and the second device is a terminal device. The first reference signal is CSI-RS, and the terminal device estimates the channel information between the network device and the terminal device based on the CSI-RS.

[0216] Optional, Figure 6 The illustrated embodiment also includes steps 603a to 603b. Steps 603a to 603b may be performed before step 603.

[0217] 603a. The first device generates a second reference signal based on the second phase compensation value.

[0218] The second reference signal occupies the second time unit, and the second phase compensation value is the phase compensation value corresponding to the second time unit. The second phase compensation value is used to compensate for the phase of the second reference signal.

[0219] It should be noted that the second phase compensation value is similar to the first phase compensation value; for details, please refer to the aforementioned introduction to the first phase compensation value, which will not be repeated here. The generation method of the second reference signal is similar to that of the first reference signal; for details, please refer to the aforementioned introduction to the generation method of the first reference signal, which will not be repeated here.

[0220] Optionally, the second reference signal is generated based on the second sequence. The second sequence can be represented as Equation 12, Equation 13, Equation 14, or Equation 15:

[0221]

[0222]

[0223] Where t1 is the local frequency hopping index of the second time unit, α is the cyclic shift value, p(t1) is the second phase compensation value, and m1 is the order of the subcarriers occupied by the second frequency resource among the subcarriers occupied by the second frequency resource. For example, as shown in Table 1, the number of subcarriers occupied by the second frequency resource is... There are 1 subcarrier. Therefore, the value of m1 can be 0, 1, 2, and so on. For the first subcarrier occupied by the second frequency resource, m1 = 0; for the second subcarrier occupied by the second frequency resource, m1 = 1, and so on. or r u,v (m1)=r q [m1], N ZC for The length q is determined by u and v, where u is... The sequence group number, v is The sequence number. In Formula 16 above, p(α,t1) is related to at least one of the following: the actual frequency domain position N1(t1) occupied by the second reference signal, the phase compensation period corresponding to the P time units, the local frequency hopping index of the first time unit, the bandwidth occupied by the second frequency resource, and the total number of frequency hopping times of the reference signal occupied in the time units carried on the total bandwidth. Specifically, p(α,t1) can be expressed as the following Formulas 17, 18, 19, 20, 21, or 22:

[0224] p(α,t1)=αm1-p(t1) Formula 17

[0225] p(α,t1)=-αm1-p(t1) Formula 18

[0226] p(α,t1)=αm1+p(t1) Formula 19

[0227]

[0228] p(α,t1)=α×(m1+f(t1)) Formula 21

[0229] p(α,t1)=α×(m1+N1(t1)) Formula 22

[0230] For information on f(t1), please refer to the previous introduction to f(t0), which will not be repeated here. For information on α and m1, please refer to the previous introduction. N1(t1) is the starting frequency domain position occupied by the second reference signal. The calculation method of N1(t1) is similar to that of N0(t0), and for details, please refer to the relevant introduction to N0(t0).

[0231] It should be noted that and can be the same sequence or different sequences, and this application does not impose any specific limitations. Both and can be multi-hop reference signals, and the Zadoff-Chu sequences (e.g., abbreviated as ZC sequences, where Zadoff and Chu are names) used to generate different hop reference signals can be the same or different. For example, the values ​​of u and / or v in the sequences used to generate different hop reference signals can be the same or different.

[0232] Optional, or

[0233] Optional, or

[0234] In this application, optionally, t0 precedes t1.

[0235] The first reference signal occupies the first frequency resource, and the second reference signal occupies the second frequency resource. The first frequency resource and the second frequency resource are related. The phase of the first reference signal is continuous with the phase of the second reference signal.

[0236] In one possible implementation, the first frequency resource and the second frequency resource are two consecutive frequency segments. For example, such as... Figure 7 As shown, the first reference signal is the first-hop reference signal, and the second reference signal is the second-hop reference signal. The first-hop reference signal occupies subcarriers 0 to M-1. The second-hop reference signal occupies subcarriers M to 2M-1. The subcarriers occupied by the first-hop reference signal and the second-hop reference signal are consecutive. For example, as... Figure 8As shown, the first reference signal is the first-hop reference signal, and the second reference signal is the second-hop reference signal. The first-hop reference signal occupies subcarriers M to 2M-1, and the second-hop reference signal occupies subcarriers 2M to 3M-1. Therefore, it can be seen that the subcarriers occupied by the first-hop reference signal and the second-hop reference signal are consecutive.

[0237] In another possible implementation, there is an overlap between the first frequency resource and the second frequency resource. For example, there is a partial overlap between the first frequency resource and the second frequency resource.

[0238] Optionally, the bandwidth occupied by the first frequency resource is the same as the bandwidth occupied by the second frequency resource. For example, ... Figure 7 As shown, the first reference signal is the first hop reference signal, and the second reference signal is the second hop reference signal. The number of subcarriers occupied by the first hop reference signal is equal to the number of subcarriers occupied by the second hop reference signal.

[0239] It should be noted that the above description uses the first and second reference signals as examples to illustrate the technical solution of this application. In practical applications, the bandwidth occupied by different hop reference signals in a multi-hop reference signal may be the same or different. For example, as Figure 7 As shown, each hop in the H-hop reference signal occupies M subcarriers. That is, different hop reference signals occupy the same bandwidth.

[0240] Optionally, the phase continuity between the first reference signal and the second reference signal includes: the phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource is α+2eπ, where e is an integer. For example, as shown in Table 1, the first frequency resource occupancy... One subcarrier, second frequency resource occupancy There are 1 subcarrier. The starting frequency domain position occupied by the first reference signal is N0(t0). As shown in Table 1, the sequence used to generate the first reference signal carried on the first subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the first reference signal carried on the last subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the second reference signal on the first subcarrier of the second frequency resource occupation is as follows: or, in, It is r u,v (0) conjugate, yes The conjugate of the first reference signal and the second reference signal. That is, the phase difference α between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource. t0 is the local frequency hopping index of the first time unit, and t1 is the local frequency hopping index of the second time unit. This refers to the bandwidth occupied by the first frequency resource. This represents the bandwidth occupied by the second frequency resource. α is the cyclic shift value. The local frequency hopping index of the second time unit is similar to that of the first time unit; please refer to the aforementioned introduction to the local frequency hopping index of the first time unit for details.

[0241] It should be noted that the phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource can also be other values, which are not limited in this application.

[0242] It should be noted that the starting frequency domain position occupied by the first reference signal in Table 1 above is denoted as N0(t0), and the starting frequency domain position occupied by the second reference signal is denoted as N1(t1). That is, the above... It equals N1(t1).

[0243] It should be noted that, optionally, the phase difference between the phases of the first reference signal on any two adjacent subcarriers occupied by the first frequency resource can be α + 2eπ, where e is an integer. For example, as shown in Table 1, the sequence used to generate the first reference signal on the first subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the first reference signal on the second subcarrier occupied by the first frequency resource is as follows: Optionally, the phase difference between the phases of the second reference signal on any two adjacent subcarriers occupied by the second frequency resource can be α. As shown in Table 1, the sequence used to generate the second reference signal on the first subcarrier occupied by the second frequency resource is as follows: The sequence used to generate the second reference signal on the second subcarrier occupied by the second frequency resource is as follows:

[0244] It should be noted that the first reference signal occupies the first time unit, and the second reference signal occupies the second time unit. The first time unit and the second time unit can be two consecutive time units or two non-consecutive time units; this application does not specify which. For example, the first time unit is time domain symbol 1, and the second time unit is time domain symbol 2. That is, the first time unit and the second time unit are two consecutive time units. In other words, the first reference signal and the second reference signal are two frequency-hopping signals continuously transmitted by the first device.

[0245] It should be noted that the phase of the first reference signal is continuous with the phase of the second reference signal, and can be characterized by the relationship between the first phase compensation value and the second phase compensation value.

[0246] The relationship between the first phase compensation value and the second phase compensation value is explained below, using some calculation methods for the first phase compensation value and the second phase compensation value.

[0247] I. First Phase Compensation Value Second phase compensation value Therefore, the difference between the first phase compensation value and the second phase compensation value is... For example, t0-t1=1, which is the difference between the first phase compensation value and the second phase compensation value. This ensures that the phase of the first reference signal is continuous with the phase of the second reference signal.

[0248] II. First Phase Compensation Value Second phase compensation value Therefore, the difference between the first phase compensation value and the second phase compensation value is For example, f(t0) = t0, or f(t0) = (t0 + 1) mod H, i.e., f(t0) - f(t1) = 1. Therefore, the difference between the first phase compensation value and the second phase compensation value is... This ensures that the phase of the first reference signal is continuous with the phase of the second reference signal.

[0249] III. First Phase Compensation Value Second phase compensation value Therefore, the difference between the first phase compensation value and the second phase value is For example, f(t1′) - f(t0′) = 1. Therefore, the difference between the first phase compensation value and the second phase compensation value is... This ensures that the phase of the first reference signal is continuous with the phase of the second reference signal.

[0250] 603b. The first device transmits or outputs a second reference signal. Correspondingly, the second device receives the second reference signal from the first device.

[0251] Step 603b is similar to step 602. For details, please refer to the relevant introduction of step 602 above. It will not be repeated here.

[0252] It should be noted that there is no fixed execution order between steps 603a to 603b and steps 601 to 602. Steps 603a to 603b can be executed first, followed by steps 601 to 602; or steps 601 to 602 can be executed first, followed by steps 603a to 603b; or, depending on the circumstances, steps 601 to 602 and steps 603a to 603b can be executed simultaneously. This application does not impose any specific restrictions on this.

[0253] Optionally, step 603 above specifically includes: the second device performing channel estimation based on the first reference signal and the second reference signal.

[0254] Since the first reference signal and the second reference signal are in phase, the second device can combine the first reference signal and the second reference signal to perform channel estimation.

[0255] It should be noted that the above Figure 6 The illustrated embodiment uses a first reference signal and a second reference signal as examples to introduce the technical solution of this application. In practical applications, the first device and the second device can transmit multi-hop reference signals over P time units. The phases of any two adjacent reference signals in this multi-hop reference signal are continuous. This enables the second device to perform channel estimation using the multi-hop reference signals, thereby improving channel estimation performance. The generation method of each hop reference signal in the multi-hop reference signal is similar to the generation method of the aforementioned first or second reference signal, and is not specifically limited in this application. Optionally, the bandwidth occupied by different hop reference signals in the multi-hop reference signal can be the same or different. Optionally, the time units occupied by any two adjacent reference signals in the multi-hop reference signal can be continuous or discontinuous, and is not specifically limited in this application. Optionally, the frequency domain resources occupied by any two adjacent reference signals in the multi-hop reference signal can be continuous or discontinuous, and is not specifically limited in this application.

[0256] The generation method for the reference signals carried by the other sub-bandwidths in the total bandwidth is similar to that of the reference signals carried by the first sub-bandwidth, and will not be repeated here.

[0257] Optionally, within P time units (or the time range [T1, T2] from the start time T1 of the first time unit to the end time T2 of the last time unit), the first device satisfies at least one of the following: the timing advance (TA) of the first device remains unchanged; the transmission power of the first device remains unchanged; the first device has no other uplink transmissions; the first device has no uplink / downlink switching; or the first device has no beam switching. This avoids errors introduced by changes in the hardware conditions of the first device. For example, changes in the hardware conditions of the first device may cause phase discontinuities in two adjacent reference signals.

[0258] In this embodiment, a first device generates a first reference signal based on a first phase compensation value. The first reference signal occupies a first time unit, and the first phase compensation value is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate the phase of the first reference signal. Then, the first device outputs or transmits the first reference signal. Therefore, it can be seen that the first device generates the first reference signal based on the first phase compensation value. The first phase compensation value is used to compensate the phase of the first reference signal. The first reference signal can be understood as a one-hop reference signal. The technical solution of this application achieves phase compensation for the one-hop reference signal transmitted in the first time unit. This facilitates the establishment of phase correlation between multi-hop reference signals transmitted in multiple time units, enabling the receiving end to jointly receive the multi-hop reference signal and perform channel estimation using the multi-hop reference signal, thereby improving channel estimation accuracy and performance.

[0259] Figure 9 This is a schematic diagram of another embodiment of the signal generation and transmission method and the signal reception method of this application. Please refer to... Figure 9 The methods include:

[0260] 901. The first device generates a first reference signal and a second reference signal.

[0261] The first reference signal occupies a first time unit and a first frequency resource. The second reference signal occupies a second time unit and a second frequency resource. The first frequency resource is related to the second frequency resource, and the phases of the first reference signal and the second reference signal are continuous.

[0262] For information on the first and second reference signals, please refer to the preceding text. Figure 6 The relevant descriptions in the illustrated embodiments will not be repeated here.

[0263] 902. The first device transmits or outputs a first reference signal and a second reference signal. Correspondingly, the second device receives the first reference signal and the second reference signal from the first device.

[0264] Optionally, if the first device does not include a radio frequency (RF) unit, the first device and the RF unit are connected. The first device generates a first reference signal and a second reference signal, and outputs the first reference signal and the second reference signal to the RF unit. Then, the RF unit sends the first reference signal and the second reference signal to the second device.

[0265] Optionally, if the first device includes a radio frequency unit, the first device generates a first reference signal and a second reference signal, and sends the first reference signal and the second reference signal to the second device.

[0266] Optional, Figure 9 The illustrated embodiment also includes step 903. Step 903 may be performed after step 902.

[0267] 903. The second device performs channel estimation based on the first reference signal and the second reference signal.

[0268] Step 903 and the aforementioned Figure 6 Step 603 in the illustrated embodiment is similar; please refer to the foregoing for details. Figure 6 The details of step 603 in the illustrated embodiment will not be repeated here.

[0269] Optional, Figure 9 The illustrated embodiment also includes step 901a. Step 901a may be performed before step 901.

[0270] 901a. The second device sends first configuration information to the first device. Correspondingly, the first device receives the first configuration information from the second device.

[0271] Step 901a and the aforementioned Figure 6 Step 601a in the illustrated embodiment is similar; for details, please refer to the foregoing. Figure 6 The relevant description of step 601a in the illustrated embodiment will not be repeated here.

[0272] Optional, Figure 9 The illustrated embodiment also includes step 901b. Step 901b may be performed before step 901.

[0273] 901b. The first device sends capability information to the second device. Correspondingly, the second device receives the capability information from the first device.

[0274] Step 901a and the aforementioned Figure 6 Step 601b in the illustrated embodiment is similar; please refer to the foregoing for details. Figure 6 The relevant description of step 601b in the illustrated embodiment will not be repeated here.

[0275] In this embodiment, a first device generates a first reference signal and a second reference signal. The first reference signal occupies a first time unit and a first frequency resource. The second reference signal occupies a second time unit and a second frequency resource. The first frequency resource is related to the second frequency resource, and the phases of the first reference signal and the second reference signal are continuous. Then, the first device transmits or outputs the first reference signal and the second reference signal. Therefore, it is known that the first frequency resource is related to the second frequency resource, and the phases of the first reference signal and the second reference signal are continuous. This facilitates the receiving end to jointly receive the first reference signal and the second reference signal, and to perform channel estimation using the first and second reference signals, thereby improving channel estimation accuracy and performance.

[0276] The apparatus provided in this application is described below.

[0277] Figure 10 A schematic diagram of the device provided in an embodiment of this application. Please refer to... Figure 10 The device 1000 includes a transceiver module 1001 and a processing module 1002.

[0278] The processing module 1002 is used for data processing. The transceiver module 1001 is used to implement the corresponding communication functions.

[0279] Optionally, the transceiver module 1001 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments.

[0280] It should be noted that device 1000 may include a transmitting module but not a receiving module. Alternatively, device 1000 may include a receiving module but not a transmitting module. Specifically, it depends on whether the above-described scheme executed by device 1000 includes both transmitting and receiving actions.

[0281] Optionally, the device 1000 may further include a storage module, which can be used to store instructions and / or data. The processing module 1002 can read the instructions and / or data in the storage module so that the device 1000 can implement the aforementioned method embodiments.

[0282] Device 1000 is a first device, or a component (e.g., a chip), module, or unit within a first device. Device 1000 can be used to perform... Figure 6 and Figure 9 The first device performs all or part of the steps in the illustrated embodiment.

[0283] For example, device 1000 is used to execute the following scheme:

[0284] Processing module 1002 is used to generate a first reference signal based on a first phase compensation value. The first reference signal occupies a first time unit. The first phase compensation value is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate the phase of the first reference signal.

[0285] The transceiver module 1001 is used to send or output the first reference signal.

[0286] For other implementation methods, please refer to [link / reference]. Figure 6 The relevant descriptions in the illustrated embodiments are as follows.

[0287] For example, the first device 1000 is used to execute the following scheme:

[0288] Processing module 1002 is used to generate a first reference signal and a second reference signal. The first reference signal occupies a first frequency resource, and the second reference signal occupies a second frequency resource. The first frequency resource is related to the second frequency resource, and the phases of the first reference signal and the second reference signal are continuous.

[0289] The transceiver module 1001 is used to send or output a first reference signal and a second reference signal.

[0290] For other implementation methods, please refer to [link / reference]. Figure 9 The relevant descriptions in the illustrated embodiments are as follows.

[0291] It should be understood that the specific procedures for each module to perform the above-mentioned corresponding processes have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0292] The processing module 1002 in the above embodiments can be implemented by at least one processor or processor-related circuitry. The transceiver module 1001 can be implemented by a transceiver or transceiver-related circuitry. The transceiver module 1001 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0293] Figure 11 Another schematic diagram of the device provided in an embodiment of this application. Please refer to... Figure 11 The device 1100 includes a transceiver module 1101. Optionally, the device 1100 may also include a processing module 1102.

[0294] The processing module 1102 is used for data processing. The transceiver module 1101 is used to implement the corresponding communication functions.

[0295] Optionally, the transceiver module 1101 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments.

[0296] It should be noted that device 1100 may include a transmitting module but not a receiving module. Alternatively, device 1100 may include a receiving module but not a transmitting module. Specifically, it depends on whether the above-described scheme executed by device 1100 includes both transmitting and receiving actions.

[0297] Optionally, the device 1100 may further include a storage module, which can be used to store instructions and / or data. The processing module 1102 can read the instructions and / or data in the storage module so that the device 1100 can implement the aforementioned method embodiments.

[0298] Device 1100 is a second device, or a component (e.g., a chip), module, or unit within a second device. Device 1100 can be used to perform... Figure 6 and Figure 9 The second device performs all or part of the steps in the illustrated embodiment.

[0299] For example, device 1100 is used to perform the following scheme:

[0300] The transceiver module 1101 is used to receive a first reference signal from the first device. The first reference signal occupies a first time unit. The first phase compensation value is the phase compensation value corresponding to the first time unit. The first reference signal is generated based on the first phase compensation value.

[0301] For other implementation methods, please refer to the preceding text. Figure 6 The relevant descriptions in the illustrated embodiments are as follows.

[0302] For example, device 1100 is used to perform the following scheme:

[0303] The transceiver module 1101 is used to receive a first reference signal and a second reference signal from the first device. The first reference signal occupies a first frequency resource, and the second reference signal occupies a second frequency resource. The first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal.

[0304] It should be understood that the specific procedures for each module to perform the above-mentioned corresponding processes have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0305] The processing module 1102 in the above embodiments can be implemented by at least one processor or processor-related circuitry. The transceiver module 1101 can be implemented by a transceiver or transceiver-related circuitry. The transceiver module 1101 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0306] This application also provides an apparatus. Figure 12 This is another schematic diagram of the device provided in an embodiment of this application. Please refer to... Figure 12 The device 1200 may be the first device or the second device in the above method embodiments, or it may be a component (e.g., a chip), module, or unit of the first device or the second device in the above method embodiments. The device 1200 may be used to perform the operations performed by the first device or the second device in the above method embodiments.

[0307] The processor is mainly used to process data or signals, control devices, execute corresponding software programs, and process data from software programs.

[0308] It should be noted that this processor has weak signal processing capabilities and is unable to perform complex signal processing algorithms.

[0309] The memory is mainly used to store software programs and data. The radio frequency (RF) circuit is mainly used for the conversion between baseband signals and RF signals, as well as the processing of RF signals.

[0310] Antennas are primarily used for transmitting and receiving radio frequency signals in the form of electromagnetic waves.

[0311] Optionally, the device 1200 may also include input / output devices, such as a touch screen, a display screen, a keyboard, etc., primarily used to receive user input data and output data to the user.

[0312] When data needs to be transmitted, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit then processes the baseband signal and transmits it outward as electromagnetic waves through the antenna. When data is sent to the device, the RF circuit receives the RF signal through the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor. The processor then converts the baseband signal back into data and processes it.

[0313] For ease of explanation, Figure 12 Only one memory and processor are shown in the illustration. In actual products, there may be one or more processors and one or more memories. Memory may also be referred to as storage medium or storage device, etc. Memory may be set up independently of the processor or integrated with the processor; this application does not limit this.

[0314] In this embodiment, the antenna and radio frequency circuit with transceiver functions can be considered as the transceiver unit of the device, and the processor with processing functions can be considered as the processing unit of the device. For example... Figure 12 As shown, the device 1200 includes a transceiver unit 1210 and a processing unit 1220. The transceiver unit can also be called a transceiver, transceiver machine, transceiver device, etc. The processing unit can also be called a processor, processing board, processing module, processing device, etc.

[0315] Optionally, the devices in transceiver unit 1210 used for receiving functions can be considered as receiving units, and the devices in transceiver unit 1210 used for transmitting functions can be considered as transmitting units. That is, transceiver unit 1210 includes both receiving and transmitting units. A transceiver unit can also be called a transceiver, transceiver circuit, etc. A receiving unit can also be called a receiver, receiver, or receiving circuit, etc. A transmitting unit can also be called a transmitter, transmitter, or transmitting circuit, etc.

[0316] It should be understood that the transceiver unit 1210 is used to perform the transmission and reception operations of the first or second device in the above method embodiments, and the processing unit 1220 is used to perform other operations on the first or second device in the above method embodiments besides the transmission and reception operations.

[0317] When the device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input / output circuit or a communication interface; the processing unit is a processor, microprocessor, integrated circuit, or logic circuit integrated on the chip. In the above method embodiments, the sending operation corresponds to the output of the input / output circuit, and the receiving operation corresponds to the input of the input / output circuit.

[0318] This application also provides another device, Figure 13 This is another schematic diagram of the device provided in an embodiment of this application. Please refer to... Figure 13 The device 1300 includes a processor 1301.

[0319] Optionally, the device 1300 may also include a memory 1302.

[0320] Optionally, the device 1300 may also include a transceiver 1303.

[0321] In one possible implementation, the processor 1301, memory 1302, and transceiver 1303 are connected via a bus, and the memory 1302 stores computer instructions.

[0322] In one possible implementation, when device 1300 is the first device, the first device may be a component in a terminal device or network device (e.g., a processor, circuit, chip, or chip system, etc.), or a logic module or software that can implement all or part of the functions of the terminal device, or a logic module or software that can implement all or part of the functions of the network device. Device 1300 may be used to execute the steps executed by the first device in the above method embodiments, and specific details can be found in the relevant descriptions in the foregoing method embodiments.

[0323] In this implementation, the aforementioned Figure 10 The processing module 1002 in the illustrated embodiment may be the processor 1301, as described above. Figure 10The transceiver module 1001 in the illustrated embodiment can be the transceiver 1302.

[0324] In another possible implementation, when device 1300 is a second device, the second device may be a terminal device or a network device, or a component in the terminal device or network device (e.g., a processor, circuit, chip, or chip system, etc.), or a logic module or software that can implement all or part of the functions of the terminal device, or a logic module or software that can implement all or part of the functions of the network device. Device 1400 may be used to execute the steps executed by the second device in the above method embodiments, and specific details can be found in the relevant descriptions in the foregoing method embodiments.

[0325] In this implementation, the aforementioned Figure 11 The processing module 1102 in the illustrated embodiment may be the processor 1301, as described above. Figure 11 The transceiver module 1101 in the illustrated embodiment can be the transceiver 1302.

[0326] This application also provides a communication system, which includes a first device and a second device. The first device is used to perform all or part of the steps of the first device in the above method embodiments. The second device is used to perform all or part of the steps of the second device in the above method embodiments.

[0327] This application also provides a computer program product including computer instructions, which, when run on a computer, causes the computer to perform the above-described actions. Figure 6 and Figure 9 The method of the embodiment shown.

[0328] This application also provides a computer-readable storage medium, including computer instructions, which, when executed on a computer, cause the computer to perform the above-described actions. Figure 6 and Figure 9 The method of the embodiment shown.

[0329] This application also provides a chip device, including a processor, for calling a computer program or computer instructions stored in a memory, so that the processor executes the above-described... Figure 6 and Figure 9 The method of the embodiment shown.

[0330] Optionally, the processor is coupled to the memory via an interface.

[0331] Optionally, the chip device may also include a memory in which computer programs or computer instructions are stored.

[0332] The processor mentioned above can be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more devices used to control the above. Figure 6 and Figure 9 The illustrated embodiment is an integrated circuit for program execution of the method. The memory mentioned above may be read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, such as random access memory (RAM).

[0333] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0334] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0335] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0336] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part of the technical solution that makes an essential contribution, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0337] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for generating and transmitting a signal, characterized in that, The method includes: A first reference signal is generated based on a first phase compensation value. The first reference signal occupies a first time unit. The first phase compensation value is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate the phase of the first reference signal. Send or output the first reference signal.

2. A signal receiving method, characterized in that, The method includes: A first reference signal is received, the first reference signal occupies a first time unit, the first phase compensation value is the phase compensation value corresponding to the first time unit, and the first reference signal is generated based on the first phase compensation value.

3. The method according to claim 1 or 2, characterized in that, The first reference signal occupies a first frequency resource, which belongs to a first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2, and the first time unit is a time unit among the P time units.

4. The method according to claim 3, characterized in that, The first reference signal is generated based on the first sequence; Wherein, the first sequence Or for Or for Or for t0 is the local frequency hopping index of the first time unit, which is the frequency hopping index of the first time unit in the number of frequency hopping times corresponding to the P time units; α is the cyclic shift value, p(t0) is the first phase compensation value, and m0 is the order of the subcarriers occupied by the first frequency resource among the subcarriers occupied by the first frequency resource. or the r u,v (m0)=r q [m0], the N ZC for The sequence length, q, is determined based on u and v, where u is the sequence length. The sequence group number, where v is the... The serial number.

5. The method according to claim 3, characterized in that, The first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; The first reference signal is generated based on at least one of the following: the starting frequency domain position occupied by the first reference signal, the phase compensation period corresponding to the P time units, the local frequency hopping index of the first time unit, the bandwidth occupied by the first frequency resource, the total number of frequency hopping times of the reference signal carried on the total bandwidth in the time units, and the first phase compensation value. Wherein, the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the first time unit in the frequency hopping count of the P time units, and the phase compensation period corresponding to the P time units is the number of frequency hopping in the P time units, or the total duration of the P time units, or the number of times or opportunities to send reference signals in the P time units.

6. The method according to any one of claims 3 to 5, characterized in that, The starting frequency domain position occupied by the first reference signal The N0 and the The parameters configured for the network device, wherein t0 is the local frequency hopping index of the first time unit; or, The starting frequency domain position occupied by the first reference signal The N0, the β and the The parameters configured for the network device, wherein t0 is the local frequency hopping index of the first time unit; or, The starting frequency domain position occupied by the first reference signal is N0(t0) = N0 + f(t0) × M t0 The N0 and the M t0 The parameters configured for the network device are f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to the P time units; or, The starting frequency domain position occupied by the first reference signal is N0(t0) = N0 + f(t0), where N0 is a parameter configured by the network device, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to the P time units.

7. The method according to any one of claims 3 to 6, characterized in that, First phase compensation value α is the cyclic shift value, t0 is the local frequency hopping index of the first time unit, and the... The bandwidth occupied by the first frequency resource is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. or, First phase compensation value The α is a cyclic shift value, the f(t0) = t0, or the f(t0) = (t0+1)mod H, where mod represents the remainder. The bandwidth occupied by the first frequency resource is t0, which is the local frequency hopping index of the first time unit. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hopping in the P time units. H is the phase compensation period corresponding to the P time units. The phase compensation value corresponding to the P time units is the number of frequency hopping in the P time units, or the total duration of the P time units, or the number of times or opportunities to send reference signals in the P time units. or, The first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; First phase compensation value α is the cyclic shift value, and f(t′0) = (t′0 + 1) mod N hop Alternatively, f(t′0) = (3t′0 + 1) mod N hop Alternatively, f(t′0) = (a × t′0 + 1) mod N hop The M t0 Let be the bandwidth occupied by the first frequency resource, t0 be the local frequency hopping index of the first time unit, t0′ be the global frequency hopping index of the first time unit, the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units, and the global frequency hopping index of the first time unit is the frequency hopping index corresponding to the total number of frequency hoppings of the reference signal occupied by the first time unit on the total bandwidth, where a is an integer or a prime number, and N... hop The total number of frequency hopping times per time unit occupied by the reference signal carried on the total bandwidth.

8. The method according to any one of claims 1, 3 to 7, characterized in that, The method further includes: A second reference signal is generated based on a second phase compensation value; wherein the second reference signal occupies a second time unit, the second phase compensation value is the phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal; Send or output the second reference signal.

9. The method according to any one of claims 2 to 7, characterized in that, The method further includes: The system receives a second reference signal, wherein the second reference signal occupies a second time unit, the second reference signal is generated based on a second phase compensation value, the second phase compensation value is the phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal.

10. The method according to claim 8 or 9, characterized in that, The first frequency resource and the second frequency resource are two consecutive frequency resources.

11. The method according to any one of claims 8 to 10, characterized in that, The phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource is α+2eπ, where α is a cyclic shift value and e is an integer.

12. The method according to claim 11, characterized in that, The sequence used to generate the first reference signal carried on the first subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the first reference signal carried on the last subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the second reference signal on the first subcarrier occupied by the second frequency resource is as follows: Wherein, t0 is the local frequency hopping index of the first time unit, t1 is the local frequency hopping index of the second time unit, and the... Let α be the bandwidth occupied by the first frequency resource, and let α be the cyclic shift value. The first frequency resource and the second frequency resource belong to the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2. Both the first time unit and the second time unit belong to the P time units. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. The local frequency hopping index of the second time unit is the frequency hopping index corresponding to the number of frequency hoppings of the second time unit in the P time units. It is r u,v (0) conjugate, the yes The conjugate of, the or the r u,v (0) = r q [0], the or the aforementioned The N ZC For the The sequence length, q, is determined based on u and v, where u is the sequence length. The sequence group number, where v is the... The serial number.

13. A first device, characterized in that, The first device includes: The processing module is used to generate a first reference signal based on a first phase compensation value. The first reference signal occupies a first time unit. The first phase compensation value is the phase compensation value corresponding to the first time unit. The first phase compensation value is used to compensate the phase of the first reference signal. The transceiver module is used to send or output the first reference signal.

14. A second device, characterized in that, The second device includes: The transceiver module is used to receive a first reference signal, the first reference signal occupies a first time unit, the first phase compensation value is the phase compensation value corresponding to the first time unit, and the first reference signal is generated based on the first phase compensation value.

15. The first device according to claim 13 or the second device according to claim 14, characterized in that, The first reference signal occupies a first frequency resource, which belongs to a first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2, and the first time unit is a time unit among the P time units.

16. The first or second device according to claim 15, characterized in that, The first reference signal is generated based on the first sequence; Wherein, the first sequence Or for Or for Or for t0 is the local frequency hopping index of the first time unit, which is the frequency hopping index of the first time unit in the number of frequency hopping times corresponding to the P time units; α is the cyclic shift value, p(t0) is the first phase compensation value, and m0 is the order of the subcarriers occupied by the first frequency resource among the subcarriers occupied by the first frequency resource. or the r u,v (m0)=r q [m0], the N ZC for The sequence length, q, is determined based on u and v, where u is the sequence length. The sequence group number, where v is the... The serial number.

17. The first or second device according to claim 15, characterized in that, The first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; The first reference signal is generated based on at least one of the following: the starting frequency domain position occupied by the first reference signal, the phase compensation period corresponding to the P time units, the local frequency hopping index of the first time unit, the bandwidth occupied by the first frequency resource, the total number of frequency hopping times of the reference signal carried on the total bandwidth in the time units, and the first phase compensation value. Wherein, the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the first time unit in the frequency hopping count of the P time units, and the phase compensation period corresponding to the P time units is the number of frequency hopping in the P time units, or the total duration of the P time units, or the number of times or opportunities to send reference signals in the P time units.

18. The first or second device according to any one of claims 15 to 17, characterized in that, The starting frequency domain position occupied by the first reference signal The N0 and the The parameters configured for the network device, wherein t0 is the local frequency hopping index of the first time unit; or, The starting frequency domain position occupied by the first reference signal The N0, the β and the The parameters configured for the network device, wherein t0 is the local frequency hopping index of the first time unit; or, The starting frequency domain position occupied by the first reference signal The N0 and the The parameters configured for the network device are f(t0) = t0, or f(t0) = (t0+1)mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to the P time units; or, The starting frequency domain position occupied by the first reference signal is N0(t0) = N0 + f(t0), where N0 is a parameter configured by the network device, f(t0) = t0, or f(t0) = (t0 + 1) mod H, where mod represents the remainder, t0 is the local frequency hopping index of the first time unit, and H is the phase compensation period corresponding to the P time units.

19. The first or second device according to any one of claims 15 to 18, characterized in that, First phase compensation value α is the cyclic shift value, t0 is the local frequency hopping index of the first time unit, and M... t0 The bandwidth occupied by the first frequency resource is the local frequency hopping index of the first time unit, which is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. or, First phase compensation value The α is a cyclic shift value, the f(t0) = t0, or the f(t0) = (t0+1)mod H, where mod represents the remainder. The bandwidth occupied by the first frequency resource is t0, which is the local frequency hopping index of the first time unit. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hopping in the P time units. H is the phase compensation period corresponding to the P time units. The phase compensation value corresponding to the P time units is the number of frequency hopping in the P time units, or the total duration of the P time units, or the number of times or opportunities to send reference signals in the P time units. or, The first sub-bandwidth is one of the sub-bandwidths in the total bandwidth used to carry the reference signal; First phase compensation value α is the cyclic shift value, and f(t′0) = (t′0 + 1) mod N hop Alternatively, f(t′0) = (3t′0 + 1) mod N hop Alternatively, f(t′0) = (a × t′0 + 1) mod N hop The Let be the bandwidth occupied by the first frequency resource, t0 be the local frequency hopping index of the first time unit, t0′ be the global frequency hopping index of the first time unit, the local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units, and the global frequency hopping index of the first time unit is the frequency hopping index corresponding to the total number of frequency hoppings of the reference signal occupied by the first time unit on the total bandwidth, where a is an integer or a prime number, and N... hop The total number of frequency hopping times per time unit occupied by the reference signal carried on the total bandwidth.

20. The first device according to any one of claims 13, 15 to 19, characterized in that, The processing module is also used for: A second reference signal is generated based on a second phase compensation value; wherein the second reference signal occupies a second time unit, the second phase compensation value is the phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal; The transceiver module is also used for: Send or output the second reference signal.

21. The second device according to any one of claims 14 to 19, characterized in that, The transceiver module is also used for: The system receives a second reference signal, wherein the second reference signal occupies a second time unit, the second reference signal is generated based on a second phase compensation value, the second phase compensation value is the phase compensation value corresponding to the second time unit, the second phase compensation value is used to compensate the phase of the second reference signal, the first reference signal occupies a first frequency resource, the second reference signal occupies a second frequency resource, the first frequency resource is related to the second frequency resource, and the phase of the first reference signal is continuous with the phase of the second reference signal.

22. The first or second device according to claim 20 or 21, characterized in that, The first frequency resource and the second frequency resource are two consecutive frequency resources.

23. The first or second device according to any one of claims 20 to 22, characterized in that, The phase difference between the phase of the first reference signal on the last subcarrier occupied by the first frequency resource and the phase of the second reference signal on the first subcarrier occupied by the second frequency resource is α+2eπ, where α is a cyclic shift value and e is an integer.

24. The first or second device according to claim 23, characterized in that, The sequence used to generate the first reference signal carried on the first subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the first reference signal carried on the last subcarrier occupied by the first frequency resource is as follows: The sequence used to generate the second reference signal on the first subcarrier occupied by the second frequency resource is as follows: or, Wherein, t0 is the local frequency hopping index of the first time unit, t1 is the local frequency hopping index of the second time unit, and the... Let α be the bandwidth occupied by the first frequency resource, and let α be the cyclic shift value. The first frequency resource and the second frequency resource belong to the first sub-bandwidth. The reference signal carried on the first sub-bandwidth occupies P time units, where P is an integer greater than or equal to 2. Both the first time unit and the second time unit belong to the P time units. The local frequency hopping index of the first time unit is the frequency hopping index corresponding to the number of frequency hoppings of the first time unit in the P time units. The local frequency hopping index of the second time unit is the frequency hopping index corresponding to the number of frequency hoppings of the second time unit in the P time units. It is r u,v (0) conjugate, the yes The conjugate of, the or the r u,v (0) = r q [0], the or the aforementioned The N ZC for The sequence length, q, is determined based on u and v, where u is the sequence length. The sequence group number, where v is the... The serial number.

25. An apparatus, characterized in that, The apparatus includes a processor configured to execute a computer program or computer instructions in a memory to perform the method as claimed in any one of claims 1 to 8, 10 to 12, or to perform the method as claimed in any one of claims 2 to 7, 9 to 12.

26. The apparatus according to claim 25, characterized in that, The device also includes a transceiver, and the processor and the transceiver are interconnected via a line.

27. A computer-readable storage medium, characterized in that, The device stores a computer program that, when executed by the device, causes the device to perform the method as described in any one of claims 1 to 8, 10 to 12, or causes the device to perform the method as described in any one of claims 2 to 7, 9 to 12.

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