Communication method and device, program product and storage medium

Abstract

The invention provides a communication method and device, a program product and a storage medium, and relates to the technical field of communication. In the method, the network device can flexibly determine the number of sub-time units for sending the first signal on the time unit and the bandwidth on the time unit for the terminal device based on the measurement information, so that the flexibility of sending the first signal is improved, resources occupied by sending the first signal at a time are reduced, and the user experience is improved. The power spectrum density of sending the first signal is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and particularly relates to a communication method, device, program product and storage medium. BACKGROUND

[0002] Frequency hopping is a spread spectrum technology for realizing spectrum widening by carrier hopping. Frequency hopping includes inter-slot frequency hopping. For example, a terminal device can transmit a sounding reference signal (SRS) by using inter-slot frequency hopping. Specifically, the terminal device can hop in units of slots, and transmit the SRS on one subband in each of the multiple slots. However, in this way, the bandwidth occupied by each frequency hopping is one subband, which makes the flexibility of the transmitted signal poor. SUMMARY

[0003] The present application provides a communication method, device, program product and storage medium, which are used for improving the flexibility of the transmitted signal.

[0004] In a first aspect, an embodiment of the present application provides a communication method. The method can be applied to a network device side. The network device side can refer to a network device itself (such as a wireless access device, such as a base station device, or a core network device, such as an access and mobility function (AMF), etc.), or a module in the network device, wherein the module in the network device can be a processor, a chip or a chip system, etc. in the network device; or can be a logic module or software capable of realizing all or part of the functions, such as a central unit (CU) (or a control unit), a distributed unit (DU), a central unit control plane (CU-CP), a central unit user plane (CU-UP), an open central unit (O-CU) or a radio access network intelligent controller (RIC). The RIC can include, for example, a non-real time radio access network intelligent controller (Non-RT RIC) and / or a near-real time RAN intelligent controller (Near-RT RIC). The method comprises: receiving measurement information, the measurement information indicating a measurement parameter of a channel (such as a downlink channel) between a terminal device side and the network device side, for example, the measurement information can be received by the network device side from the terminal device side; indicating a resource for transmitting a first signal, for example, indicating the resource to the terminal device side, the resource including a sub-time unit for transmitting the first signal in one time unit of a plurality of time units, and a bandwidth for transmitting the first signal on the one time unit, the number of sub-time units for transmitting the first signal on the one time unit and / or the bandwidth of the one time unit for transmitting the first signal being determined based on the measurement information.

[0005] The plurality of time units are used for transmitting the first signal. One time unit can be any of the plurality of time units, or can be each of the plurality of time units, or one time unit can be replaced by any or each of the plurality of time units. One time unit can include a plurality of sub-time units, and the time unit is, for example, a time slot, and the sub-time unit is, for example, a symbol. The size of the bandwidth used for transmitting the first signal by any two time units of the plurality of time units can be the same or different, and is not limited. The bandwidth refers to a frequency range used for transmitting the first signal.

[0006] In the embodiments of the present application, since the number of sub-time units used for transmitting the first signal on one time unit, and / or the bandwidth used for transmitting the first signal on the time unit is determined based on the measurement information, the bandwidth used for transmitting the first signal on any two time units can be different, and / or the number of sub-time units used for transmitting the first signal on any two time units can also be different, or it can also be described that the bandwidth and / or the number of sub-time units used for transmitting the first signal on one time unit is dynamically changed, which makes the flexibility of the resource for transmitting the first signal higher, and also improves the flexibility of transmitting the first signal. In addition, the bandwidth and the sub-time unit used for transmitting the first signal on one time unit are flexible and variable and related to the measurement information, which not only can reduce the bandwidth of transmitting the first signal at one time, thereby improving the power spectral density of transmitting the first signal, but also can reduce the total bandwidth of all sub-time units within one time unit, thereby improving the utilization efficiency of frequency domain resources. In addition, the determined bandwidth and the number of sub-time units are more in line with the communication demand. In addition, the bandwidth occupied by transmitting the first signal at one time can be less, and the multiplexing capability of wireless resources can be enhanced, thereby increasing the number of users for multiplexing wireless resources.

[0007] In a possible implementation, the measurement information includes information of a channel sparsity corresponding to an upper limit of the bandwidth used for transmitting the first signal on one time unit, wherein: the smaller the channel sparsity, the greater the bandwidth used for transmitting the first signal on one time unit; or, the greater the channel sparsity, the smaller the bandwidth used for transmitting the first signal on the one time unit.

[0008] The channel sparsity corresponding to the upper limit of the bandwidth used for transmitting the first signal on one time unit can be understood as the degree of flatness of the channel power spectrum in the frequency domain range corresponding to the upper limit of the bandwidth on the time unit. The channel sparsity is used to represent the power variation, the power spectral density variation, or the channel gain variation, etc.

[0009] Thus, allocating less bandwidth on the time unit with a larger value of the channel sparsity can reduce the overhead of transmitting the first signal. Allocating more bandwidth on the time unit with a larger value of the channel sparsity can help the network device to more accurately receive the first signal. In the case that the first signal is a reference signal (such as an uplink reference signal), it is beneficial for the network device to more accurately perform channel (such as an uplink channel) estimation.

[0010] In a possible implementation, the bandwidth for transmitting the first signal on the time unit is a bandwidth in the first correspondence relationship that matches the value range to which the channel sparsity belongs, where the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0011] Thus, a manner for determining the bandwidth for transmitting the first signal on the time unit is provided, and the manner does not involve complex calculation, which is beneficial for improving the efficiency of determining the bandwidth.

[0012] In a possible implementation, the channel sparsity satisfies the following formula:

[0013]

[0014] where S represents the channel sparsity, r1, r2, and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents a maximum channel gain corresponding to the upper limit of the bandwidth on the time unit, gain min represents a minimum channel gain corresponding to the upper limit of the bandwidth on the time unit, gain avg represents an average channel gain corresponding to the upper limit of the bandwidth on the time unit, w1 and w2 are both real numbers, and w1 is less than w2.

[0015] In a possible implementation, the measurement information includes information about a channel path loss corresponding to the upper limit of the bandwidth for transmitting the first signal on the time unit, where the lower the channel path loss, the more the number of sub-time units for transmitting the first signal on the time unit; or the higher the channel path loss, the fewer the number of sub-time units for transmitting the first signal on the time unit.

[0016] Thus, allocating less sub-time unit on the time unit with a larger value of the path loss can reduce the path loss of transmitting the first signal. Allocating more sub-time unit on the time unit with a smaller value of the path loss can help more accurately transmit the first signal. In the case that the first signal is a reference signal, it is beneficial for the network device to more accurately perform channel estimation.

[0017] In a possible implementation, the number of sub-time units used for transmitting the first signal in a time unit is the number of sub-time units in the second correspondence that matches the value range to which the path loss belongs, where the second correspondence indicates a correspondence between at least one value range of the path loss and at least one number of sub-time units.

[0018] In this way, a manner for determining the number of sub-time units is provided, and the manner does not involve complex calculation, and thus the efficiency of determining the number of sub-time units is improved.

[0019] In a possible implementation, the bandwidth used for transmitting the first signal in a time unit is indicated by: indicating the first number and the first position set of at least one frequency domain resource, the first number representing a total number of frequency domain resources included in (or divided by) the upper limit of the bandwidth used for transmitting the first signal in a time unit, the at least one frequency domain resource being a frequency domain resource used for transmitting the first signal in a time unit, and the at least one first position, each of the at least one first position representing a position of a frequency domain resource in the at least one frequency domain resource on the upper limit of the bandwidth used for transmitting the first signal in a time unit. Optionally, the frequency domain resource can be a positive integer number of resource blocks (RBs), or a positive integer number of resource elements (REs), or a resource particle, a resource unit, or a resource element.

[0020] In this way, the upper limit of the bandwidth of a time unit is smaller than the total bandwidth used for transmitting the first signal, and thus the first position set is indicated, thereby saving the number of bits required for indicating the bandwidth of the first signal.

[0021] In a possible implementation, the method further includes: transmitting first information, the first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, where the position of a frequency domain resource in the at least one frequency domain resource in the total bandwidth is determined based on the second position and the first position of the frequency domain resource, and the total bandwidth is a set of maximum transmission bandwidths used for transmitting the first signal in a plurality of time units.

[0022] In this way, a manner for determining the position of the frequency domain resource in the total bandwidth is provided, and the manner has little change to the terminal device and the network device, and thus the implementation cost is low.

[0023] In a possible implementation, the position of the frequency domain resource in the total bandwidth satisfies the following formula:

[0024]

[0025] wherein, a start position of the one frequency domain resource in the total bandwidth, indicates a start position of the total bandwidth, K TC is a comb size, n b indicates an index of the second position, B SRS is a first parameter, indicates a number of subcarriers included in the bandwidth upper limit in the one time unit, P indicates a first number, and p indicates a first position of the one frequency domain resource.

[0026] In a possible implementation, the second position is determined based on a second parameter, and the second parameter indicates an order of the one time unit for transmitting the first signal in the plurality of time units.

[0027] In a possible implementation, the second parameter satisfies the following formula:

[0028]

[0029] wherein n SRS is the third parameter, is a number of time units included in the one frame, n f is a frame number of the one frame, is a number of the one time unit in the one frame, T offset is an offset between a sub-time unit of the one time unit and a start sub-time unit of the at least one sub-time unit, T SRS is a frequency hopping period of the first signal.

[0030] In a possible implementation, the bandwidth for transmitting the first signal in the one time unit is a partial bandwidth or a whole bandwidth of the bandwidth upper limit for transmitting the first signal in the first time unit.

[0031] In this way, when the bandwidth upper limit is configured, the network device can flexibly determine the bandwidth for transmitting the first signal based on the measurement information, and improve the flexibility of transmitting the first signal.

[0032] In a possible implementation, the measurement information is carried in a channel state information report.

[0033] In this way, the measurement information is reported on the multiplexed channel state information report, and the number of interactions between the terminal device and the network device is not additionally increased.

[0034] In a possible implementation, the indication of the sub-time unit of the one time unit for transmitting the first signal further includes an indication of a start sub-time unit of the one time unit for transmitting the first signal.

[0035] In a possible implementation, the number of sub-time units used for transmitting the first signal in at least two of the plurality of time units is different; or, the number of sub-time units used for transmitting the first signal in any two of the plurality of time units is the same.

[0036] In a possible implementation, the size of the bandwidth used for transmitting the first signal in at least two of the plurality of time units is different; or, the size of the bandwidth used for transmitting the first signal in any two of the plurality of time units is the same.

[0037] In a second aspect, an embodiment of the present application provides a communication method. The method can be applied to a terminal device side. The terminal device side can refer to a terminal device itself (for example, a mobile phone, a vehicle-mounted terminal, etc.), or a module in the terminal device, and can also be a logical module or software that can implement all or part of the functions. The module in the terminal device is, for example, a processor, a communication module, or a circuit or chip responsible for a communication function in the terminal device, and the chip is, for example, a modem chip, also known as a baseband chip, or a system on chip (SoC) chip or a system in package (SIP) chip containing a modem core, etc. For ease of description, the terminal device is taken as an example to introduce the method. The method comprises: sending measurement information, for example, sending the measurement information to a network device side, the measurement information indicating a measurement parameter of a channel between the terminal device side and the network device side; and receiving an indication of a resource used for transmitting a first signal, for example, receiving the indication of the resource from the network device side, the resource including a sub-time unit used for transmitting the first signal in one time unit of a plurality of time units, and a bandwidth used for transmitting the first signal on the one time unit, and the number of the sub-time unit used for transmitting the first signal on the one time unit and / or the bandwidth used for transmitting the first signal on the one time unit is related to the measurement information.

[0038] In a possible implementation, the measurement information includes information of a channel sparsity corresponding to an upper limit of the bandwidth used for transmitting the first signal on the one time unit, where: the smaller the channel sparsity, the larger the bandwidth used for transmitting the first signal on the one time unit; or, the larger the channel sparsity, the smaller the bandwidth used for transmitting the first signal on the one time unit.

[0039] In a possible implementation, the bandwidth used for transmitting the first signal on the one time unit is a bandwidth matched with a value range to which the channel sparsity belongs in a first correspondence relationship, where: the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0040] In a possible implementation, the channel sparsity satisfies the following formula:

[0041]

[0042] wherein S represents the channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents the maximum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain min represents the minimum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain avg represents the average channel gain corresponding to the upper limit of the bandwidth in the one time unit, w1 and w2 are both real numbers, and w1 is less than w2.

[0043] In a possible implementation, the measurement information includes information about channel loss corresponding to the upper limit of the bandwidth in the one time unit for transmitting the first signal, where: the lower the channel loss, the greater the number of sub-time units in the one time unit for transmitting the first signal; or, the higher the channel loss, the smaller the number of sub-time units in the one time unit for transmitting the first signal.

[0044] In a possible implementation, the number of sub-time units in the one time unit for transmitting the first signal is the number of sub-time units in the second correspondence relationship that matches the value range to which the channel loss belongs, where: the second correspondence relationship indicates a correspondence relationship between at least one value range of the channel loss and at least one number of sub-time units.

[0045] In a possible implementation, the indication of the bandwidth in the one time unit for transmitting the first signal includes: indication of a first number and a first position set of at least one frequency domain resource, where the first number represents a total number of frequency domain resources included in the upper limit of the bandwidth in the one time unit for transmitting the first signal, the at least one frequency domain resource is a frequency domain resource in the one time unit for transmitting the first uplink signal, the first position set includes at least one first position, and each of the at least one first position represents a position of one of the at least one frequency domain resource on the upper limit of the bandwidth in the one time unit for transmitting the first signal. Optionally, the frequency domain resource can be a positive integer number of RBs, or a positive integer number of REs, or resource particles, resource units or resource elements, etc.

[0046] In a possible implementation, the method further includes: receiving first information, the first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, wherein: a position of one frequency domain resource in the at least one frequency domain resource in the total bandwidth is determined based on the second position and a first position of the one frequency domain resource, and the total bandwidth is a set of bandwidth upper limits on the plurality of time units for transmitting the first signal.

[0047] In a possible implementation, the position of the one frequency domain resource in the total bandwidth satisfies the following formula:

[0048]

[0049] wherein, a starting position of the one frequency domain resource in the total bandwidth is indicated by a table, a starting position of the total bandwidth is indicated by K TC is a comb size, n b an index of the second position is indicated by B SRS is a first parameter, a quantity of subcarriers included in the bandwidth upper limit on the one time unit is indicated by P, a first quantity is indicated by p, and the first position of the one frequency domain resource is indicated by p.

[0050] In a possible implementation, the second position is determined based on a second parameter, and the second parameter indicates an order of the one time unit for transmitting the first signal in the plurality of time units.

[0051] In a possible implementation, the second parameter satisfies the following formula:

[0052]

[0053] wherein, n SRS is the second parameter, a quantity of time units included in one frame is indicated by n f a frame number of the one frame is indicated by n a number of the one time unit in the one frame is indicated by T offset an offset between a sub-time unit of the one time unit and a starting sub-time unit in the at least one sub-time unit is indicated by T SRS a frequency hopping period of the first signal is indicated by T.

[0054] In a possible implementation, the bandwidth of the one time unit for transmitting the first signal is a partial bandwidth or a whole bandwidth of a bandwidth upper limit of the first time unit for transmitting the first signal.

[0055] In a possible implementation, the measurement information is carried in a channel state information report.

[0056] In a possible implementation, the indication of the at least one sub-time unit of the one time unit further includes an indication of a starting sub-time unit for transmitting the first signal in the one time unit.

[0057] In a possible implementation, the number of sub-time units for transmitting the first signal is different in at least two time units of the plurality of time units, or the number of sub-time units for transmitting the first signal is the same in any two time units of the plurality of time units.

[0058] In a possible implementation, the size of the bandwidth for transmitting the first signal is different in at least two time units of the plurality of time units, or the size of the bandwidth for transmitting the first signal is the same in any two time units of the plurality of time units.

[0059] In a third aspect, an embodiment of the present application provides a communication method. The method can be applied to a network device side. The content of the network device side can refer to the content of the network device side discussed in the first aspect, which is not listed here. The method includes: receiving a first signal on a resource, for example, receiving a first signal from a terminal device side, wherein the resource includes a plurality of time units respectively used for sub-time units for transmitting the first signal, and a plurality of time units respectively used for bandwidth for transmitting the first signal, wherein the number of sub-time units for transmitting the first signal is different in at least two time units of the plurality of time units, and / or the bandwidth for transmitting the first signal is different in at least two time units of the plurality of time units.

[0060] In a possible implementation, the method further includes: receiving measurement information, the measurement information indicating a measurement parameter of a channel between the terminal device side and the network device side; and indicating the resource, wherein the number of sub-time units for transmitting the first signal in one time unit and the bandwidth for transmitting the first signal in one time unit are determined based on the measurement information.

[0061] In a possible implementation, the measurement information includes information of a channel sparsity corresponding to an upper limit of the bandwidth for transmitting the first signal in one time unit, wherein: the smaller the channel sparsity, the larger the bandwidth for transmitting the first signal in the one time unit; or the larger the channel sparsity, the smaller the bandwidth for transmitting the first signal in the one time unit.

[0062] In a possible implementation, the bandwidth for transmitting the first signal in one time unit is a bandwidth matched with a value range to which the channel sparsity belongs in a first correspondence relationship, wherein: the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0063] In a possible implementation, the channel sparsity satisfies the following formula:

[0064]

[0065] wherein S represents the channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents the maximum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain min represents the minimum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain avg represents the average channel gain corresponding to the upper limit of the bandwidth in the one time unit, w1 and w2 are both real numbers, and w1 is less than w2.

[0066] In a possible implementation, the measurement information includes information of a channel loss corresponding to the upper limit of the bandwidth in the one time unit for transmitting the first signal, where: the lower the channel loss, the greater the number of the sub-time units in the one time unit for transmitting the first signal; or, the higher the channel loss, the smaller the number of the sub-time units in the one time unit for transmitting the first signal.

[0067] In a possible implementation, the number of the sub-time units in the one time unit for transmitting the first signal is the number of the sub-time units in the second correspondence relationship that matches the value range to which the channel loss belongs, where: the second correspondence relationship indicates a correspondence relationship between at least one value range of the channel loss and at least one number of the sub-time units.

[0068] In a possible implementation, the indication of the bandwidth in the one time unit for transmitting the first signal includes: indication of a first number and a first position set of at least one frequency domain resource, the first number representing a total number of frequency domain resources included (or divided) in the upper limit of the bandwidth in the one time unit for transmitting the first signal, the at least one frequency domain resource being a frequency domain resource in the one time unit for transmitting the first uplink signal, and the first position set including at least one first position, each of the at least one first position representing a position of one of the at least one frequency domain resource on the upper limit of the bandwidth in the one time unit for transmitting the first signal. Optionally, the frequency domain resource can be a positive integer number of resource blocks (RBs), or a positive integer number of resource elements (REs), or a resource particle, a resource unit or a resource element.

[0069] In a possible implementation, the method further includes: sending, to the terminal device, first information, the first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, wherein: a position of one frequency domain resource in the at least one frequency domain resource in the total bandwidth is determined based on the second position and a first position of the one frequency domain resource, and the total bandwidth is a set of bandwidth upper limits for transmitting the first signal on a plurality of time units.

[0070] In a possible implementation, the position of the one frequency domain resource in the total bandwidth satisfies the following formula:

[0071]

[0072] wherein, the table indicates a starting position of the one frequency domain resource in the total bandwidth, denotes a starting position of the total bandwidth, K TC is a comb size, n b denotes an index of the second position, B SRS is a first parameter, denotes a quantity of subcarriers included in the bandwidth upper limit on the one time unit, P denotes a first quantity, and p denotes the first position of the one frequency domain resource.

[0073] In a possible implementation, the second position is determined based on a second parameter, and the second parameter indicates an order of the one time unit for transmitting the first signal in the plurality of time units.

[0074] In a possible implementation, the second parameter satisfies the following formula:

[0075]

[0076] wherein, n SRS is the second parameter, is a quantity of time units included in one frame, n f is a frame number of the one frame, is a number of the one time unit in the one frame, T offset is an offset between a sub-time unit of the one time unit and a starting sub-time unit in the at least one sub-time unit, T SRS is a frequency hopping period of the first signal.

[0077] In a possible implementation, the bandwidth of the one time unit for transmitting the first signal is a partial bandwidth or a whole bandwidth of a bandwidth upper limit of the first time unit for transmitting the first signal.

[0078] In a possible implementation, the measurement information is carried in a channel state information report.

[0079] In a possible implementation, the indication of the sub-time units of a time unit for transmitting the first signal further comprises an indication of a starting sub-time unit of a time unit for transmitting the first signal.

[0080] In a possible implementation, the number of sub-time units of at least two time units of the plurality of time units for transmitting the first signal is different; or, the number of sub-time units of any two time units of the plurality of time units for transmitting the first signal is the same.

[0081] In a possible implementation, the size of the bandwidth of at least two time units of the plurality of time units for transmitting the first signal is different; or, the size of the bandwidth of any two time units of the plurality of time units for transmitting the first signal is the same.

[0082] In a fourth aspect, an embodiment of the present application provides a communication method. The method can be applied to a terminal device side. The content of the terminal device side can refer to the content of the terminal device side discussed in the second aspect, which will not be listed here. The method comprises: transmitting a first signal on a resource, for example, transmitting the first signal to a network device side, wherein the resource comprises a plurality of time units respectively used for sub-time units for transmitting the first signal, and a plurality of time units respectively used for bandwidth for transmitting the first signal, wherein the number of sub-time units of at least two time units of the plurality of time units for transmitting the first signal is different, and / or the bandwidth of at least two time units of the plurality of time units for transmitting the first signal is different.

[0083] In a possible implementation, the method further comprises: transmitting measurement information, the measurement information indicating a measurement parameter of a channel between the terminal device side and the network device side, and the measurement information being obtained by measuring the first uplink reference signal; and receiving an indication of the resource, wherein the number of sub-time units of a time unit for transmitting the first signal and the bandwidth of the time unit for transmitting the first signal are related to the measurement information.

[0084] In a possible implementation, the measurement information comprises information of a channel sparsity corresponding to an upper limit of the bandwidth of a time unit for transmitting the first signal, wherein: the smaller the channel sparsity, the greater the bandwidth of a time unit for transmitting the first signal; or, the greater the channel sparsity, the smaller the bandwidth of a time unit for transmitting the first signal.

[0085] In a possible implementation, the bandwidth of a time unit for transmitting the first signal is a bandwidth matched with a value range to which the channel sparsity belongs in a first correspondence relationship, wherein: the first correspondence relationship indicates a correspondence relationship between at least one value range of the channel sparsity and at least one bandwidth.

[0086] In a possible implementation, the channel sparsity satisfies the following formula:

[0087]

[0088] wherein S represents the channel sparsity, r1, r2, and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents the maximum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain min represents the minimum channel gain corresponding to the upper limit of the bandwidth in the one time unit, gain avg represents the average channel gain corresponding to the upper limit of the bandwidth in the one time unit, w1 and w2 are both real numbers, and w1 is less than w2.

[0089] In a possible implementation, the measurement information includes information about a channel loss corresponding to the upper limit of the bandwidth in the one time unit for transmitting the first signal, where: the lower the channel loss, the greater the number of sub-time units in the one time unit for transmitting the first signal; or, the higher the channel loss, the smaller the number of sub-time units in the one time unit for transmitting the first signal.

[0090] In a possible implementation, the number of sub-time units in the one time unit for transmitting the first signal is the number of sub-time units in the second correspondence relationship that matches the value range to which the channel loss belongs, where: the second correspondence relationship indicates a correspondence relationship between at least one value range of the channel loss and at least one number of sub-time units.

[0091] In a possible implementation, the indication of the bandwidth in the one time unit for transmitting the first signal includes: indication of a first number and a first position set of at least one frequency domain resource, where the first number represents a total number of frequency domain resources included in the upper limit of the bandwidth in the one time unit for transmitting the first signal, the at least one frequency domain resource is a frequency domain resource in the one time unit for transmitting the first uplink signal, and the first position set includes at least one first position, each of the at least one first position representing a position of one of the at least one frequency domain resource on the upper limit of the bandwidth in the one time unit for transmitting the first signal. Optionally, the frequency domain resource can be a positive integer number of RBs, or a positive integer number of REs, or a resource particle, a resource unit, or a resource element, etc.

[0092] In a possible implementation, the method further includes: receiving first information from the network device, the first information indicating a second position, the second position being a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, wherein: a position of a frequency domain resource in the at least one frequency domain resource in the total bandwidth is determined based on the second position and a first position of the frequency domain resource, and the total bandwidth is a set of bandwidth upper limits for transmitting the first signal on the plurality of time units.

[0093] In a possible implementation, the position of the frequency domain resource in the total bandwidth satisfies the following formula:

[0094]

[0095] wherein, a starting position of the frequency domain resource in the total bandwidth is denoted by B, a starting position of the total bandwidth is denoted by K, TC a comb size is denoted by n, b an index of the second position is denoted by B, SRS a first parameter is denoted by B, a number of subcarriers included in the bandwidth upper limit on the time unit is denoted by P, a first number is denoted by p, and a first position of the frequency domain resource is denoted by n.

[0096] In a possible implementation, the second position is determined based on a second parameter, and the second parameter indicates an order of the time unit for transmitting the first signal in the plurality of time units.

[0097] In a possible implementation, the first number satisfies the following formula:

[0098]

[0099] wherein, SRS the second parameter is denoted by B, a number of time units included in one frame is denoted by n, f a frame number of the one frame is denoted by n, a number of the time unit in the one frame is denoted by T, offset an offset between a sub-time unit of the time unit and a starting sub-time unit in the at least one sub-time unit is denoted by T, SRS a frequency hopping period of the first signal is denoted by T.

[0100] In a possible implementation, the bandwidth of the time unit for transmitting the first signal is a partial bandwidth or a whole bandwidth of a bandwidth upper limit of the time unit for transmitting the first signal.

[0101] In a possible implementation, the measurement information is carried in a channel state information report.

[0102] In a possible implementation, the at least one sub-time unit of the time unit is further indicated by indicating a starting sub-time unit of the time unit for transmitting the first signal.

[0103] In a possible implementation, the number of sub-time units for transmitting the first signal is different in at least two time units of the plurality of time units, or the number of sub-time units for transmitting the first signal is the same in any two time units of the plurality of time units.

[0104] In a possible implementation, the size of bandwidth for transmitting the first signal is different in at least two time units of the plurality of time units, or the size of bandwidth for transmitting the first signal is the same in any two time units of the plurality of time units.

[0105] In a fifth aspect, an embodiment of the present application provides a communication device (or communication apparatus). For example, the communication device includes a processing unit (sometimes also referred to as a processing module), and a communication unit (sometimes also referred to as a communication module). The communication unit is configured to perform a transceiving operation, such as functions related to transmitting and receiving. The communication unit can be referred to as a transceiving unit. Optionally, the communication unit includes a receiving unit and a transmitting unit. The processing unit is configured to perform a processing operation. Alternatively, the communication unit can be a transmitter and a receiver, or the communication unit is a transmitter and a receiver. Optionally, the communication device further includes a storage unit (sometimes also referred to as a storage module).

[0106] In a first possible embodiment, the communication device can be on the network apparatus side of the first aspect, for example, can be a network apparatus, or a module (for example, a chip system) configured in the network apparatus. The communication device includes means or modules for performing the corresponding functions of the first aspect or any possible implementation. For example, the communication unit is configured to receive the measurement information and the indication of the resource for transmitting the first signal.

[0107] The communication apparatus can also implement the content of any possible implementation of the first aspect, which will not be listed one by one here.

[0108] In a second possible embodiment, the communication device can be on the terminal apparatus side of the first aspect, for example, can be a terminal apparatus, or a module (for example, a chip system) configured in the terminal apparatus. The communication device includes means or modules for performing the corresponding functions of the first aspect or any possible implementation. For example, the communication unit is configured to transmit the measurement information and receive the indication of the resource for transmitting the first signal.

[0109] The communication apparatus can also implement the contents of any possible implementation of the second aspect, which are not listed one by one here.

[0110] In a third possible implementation, the communication device can be at the network device side of the third aspect, for example, can be a network device, or a module (for example, a chip system) configured in the network device. The communication device includes corresponding means or modules for performing the third aspect or any possible implementation. For example, the communication unit is configured to receive the first signal.

[0111] The communication apparatus can also implement the contents of any possible implementation of the third aspect, which are not listed one by one here.

[0112] In a fourth possible implementation, the communication device can be at the terminal device side of the fourth aspect, for example, can be a terminal device, or a module (for example, a chip system) configured in the terminal device. The communication device includes corresponding means or modules for performing the fourth aspect or any possible implementation. For example, the communication unit is configured to send the first signal.

[0113] The communication apparatus can also implement the contents of any possible implementation of the fourth aspect, which are not listed one by one here.

[0114] In a possible design, the communication device is a communication chip, the processing unit can be one or more processors or processor cores, and the communication unit can be an input / output circuit or an input / output interface of the communication chip.

[0115] In a sixth aspect, the present application provides a communication device. The communication device includes one or more processors. The one or more processors can execute computer programs or instructions in a memory, when the computer programs or instructions are executed, cause the communication device to implement the method in the first aspect, any possible implementation of the first aspect, the second aspect, any possible implementation of the second aspect, the third aspect, any possible implementation of the third aspect, the fourth aspect, or any possible implementation of the fourth aspect.

[0116] Optionally, the communication device can include a memory, in which case the memory can be coupled with the one or more processors, or the memory can be independently disposed relative to the one or more processors. Alternatively, the memory exists independently relative to the communication device.

[0117] In a possible design, the communication device can further include an interface circuit, and the processor is configured to communicate with other devices or components through the interface circuit.

[0118] The communication apparatus can be a terminal device, or a communication module in a terminal device, or a chip responsible for communication function in a terminal, such as a Modem chip (also known as a baseband chip) or a SoC or SIP chip containing a modem module. Alternatively, the communication apparatus can be an access network device, or a module in an access network device.

[0119] In a seventh aspect, an embodiment of the present application provides a communication apparatus. The communication apparatus includes a processor and an interface circuit. The interface circuit is configured to receive a signal from another communication apparatus outside the communication apparatus and transmit the signal to the processor or send a signal from the processor to another communication apparatus outside the communication apparatus. The processor is configured to implement the method in the first aspect, any possible implementation of the first aspect, the method in the second aspect, any possible implementation of the second aspect, the method in the third aspect, any possible implementation of the third aspect, the fourth aspect, or any possible implementation of the fourth aspect by means of a logic circuit or by executing code instructions. The number of processors can be one or more, which is not limited.

[0120] In a specific implementation process, the communication apparatus can be a chip, and the processor can be a transistor, a gate circuit, a flip-flop, and various logic circuits, etc. The specific implementation of the processor is not limited in the embodiments of the present application.

[0121] In an implementation, the communication apparatus can be a wireless communication device, i.e., a computer device supporting wireless communication function. Specifically, the wireless communication device can be a terminal device such as a smart phone, or a network device such as a wireless access network device (e.g., a base station).

[0122] In another implementation, the communication apparatus can be a part of an integrated circuit product in a wireless communication device, such as a system chip or a communication chip. The system chip can also be referred to as a SoC or a SoC chip. The communication chip can include a baseband processing chip and a radio frequency processing chip. The baseband processing chip is also sometimes referred to as a modem or a baseband chip. The radio frequency processing chip is also sometimes referred to as a radio frequency transceiver or a radio frequency chip. In physical implementation, part or all of the chips in the communication chip can be integrated inside the SoC chip. For example, the baseband processing chip is integrated in the SoC chip, and the radio frequency processing chip is not integrated with the SoC chip. The interface circuit can be a radio frequency processing chip in the wireless communication device, and the processor can be a baseband processing chip in the wireless communication device. The interface circuit can be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuit on the chip or chip system. The processor can also be embodied as a processing circuit or a logic circuit.

[0123] In yet another implementation, the communication device can be a chip system, which can be composed of a chip or can contain a chip and other discrete devices. The chip system can include, for example, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a CPU, a network processor (NP), a digital signal processor (DSP), a micro controller unit (MCU), a programmable logic device (PLD), or other integrated chip, etc.

[0124] In an eighth aspect, embodiments of the present application provide a communication system.

[0125] In a possible embodiment, the communication system is configured to implement the method according to the first aspect, any of the possible implementation forms of the first aspect, the second aspect, or any of the possible implementation forms of the second aspect. For example, the communication system comprises any of the first possible embodiments of the communication device discussed in the fifth aspect, and any of the second possible embodiments of the communication device discussed in the fifth aspect.

[0126] In a possible embodiment, the communication system is configured to implement the method according to the third aspect, any of the possible implementation forms of the third aspect, the fourth aspect, or any of the possible implementation forms of the fourth aspect. For example, the communication system comprises any of the third possible embodiments of the communication device discussed in the fifth aspect, and any of the fourth possible embodiments of the communication device discussed in the fifth aspect.

[0127] In a ninth aspect, an embodiment of the present application provides a chip system. The chip system comprises a processor. Optionally, the chip system can further comprise an interface (e.g., a communication interface). The processor can be configured to implement any of the methods in the first aspect and possible implementation, the second aspect and possible implementation, the third aspect and possible implementation, and the fourth aspect and possible implementation. Optionally, the chip system further comprises a memory. The memory is configured to store a computer program (which can also be referred to as code or instructions). The processor is configured to invoke and run the computer program from the memory, so that a device installed with the chip system performs the method in the first aspect, any possible implementation of the first aspect, the second aspect, any possible implementation of the second aspect, the third aspect, any possible implementation of the third aspect, the fourth aspect, or any possible implementation of the fourth aspect. The implementation of the chip system can refer to the content of the chip system described above, which will not be listed here.

[0128] In a tenth aspect, an embodiment of the present application provides a computer readable storage medium. The computer readable storage medium is configured to store a computer program or instructions, which, when executed, implement the method in the first aspect and possible implementation, the second aspect, or any possible implementation of the second aspect, the third aspect, any possible implementation of the third aspect, the fourth aspect, or any possible implementation of the fourth aspect.

[0129] In an eleventh aspect, an embodiment of the present application provides a computer program product. When the computer program product is executed, the processor executes the method in the first aspect, any possible implementation of the first aspect, the second aspect, any possible implementation of the second aspect, the third aspect, any possible implementation of the third aspect, the fourth aspect, or any possible implementation of the fourth aspect. The computer program product comprises a computer program and / or instructions, etc.

[0130] For the beneficial effects of any of the technical solutions in the second aspect to the eleventh aspect described above, refer to the beneficial effects of the corresponding technical solutions in the first aspect, which will not be listed here. BRIEF DESCRIPTION OF DRAWINGS

[0131] FIG. 1 An architecture schematic diagram of a communication system applicable to an embodiment of the present application;

[0132] FIG. 2 An architecture schematic diagram of another communication system applicable to an embodiment of the present application;

[0133] FIG. 3 An architecture schematic diagram of an access network device applicable to an embodiment of the present application;

[0134] FIG. 4This is a schematic diagram of a comb-and-reuse mechanism;

[0135] FIG. 5 This is a schematic diagram of frequency hopping;

[0136] FIG. 6 A schematic diagram illustrating a communication method provided in an embodiment of this application;

[0137] FIG. 7 A schematic diagram of the measurement information provided in the embodiments of this application;

[0138] FIG. 8 A schematic diagram illustrating resources for transmitting a first signal in an embodiment of this application;

[0139] FIG. 9 Another schematic diagram of resources for transmitting a first signal is provided for embodiments of this application;

[0140] FIG. 10 A schematic diagram of at least one sub-time unit provided in an embodiment of this application;

[0141] FIG. 11 The sub-band frequency domain positions corresponding to the multiple time units provided in the embodiments of this application;

[0142] FIG. 12 A schematic diagram illustrating another communication method provided in an embodiment of this application;

[0143] FIG. 13 to FIG. 15 Schematic diagrams of three communication devices provided in the embodiments of this application. Detailed Implementation

[0144] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0145] The various embodiments of this application can be applied to various communication systems including a network device side and a terminal device side. The network device side can refer to the network device itself, a module in the network device, or a logic module or software that can implement all or part of the functions. The terminal device side can refer to the terminal device itself, a module in the terminal device, or a logic module or software that can implement all or part of the functions.

[0146] The various embodiments of this application are applicable to various communication systems (or communication networks, systems, etc.), such as: satellite communication systems, 5th generation (5G) mobile communication systems or new radio (NR) systems, future communication systems, device-to-device (D2D) communication systems, machine-to-machine (M2M) communication systems, Internet of Things (IoT) communication systems, or other communication systems. 5G mobile communication systems include non-standalone (NSA) 5G mobile communication systems and / or standalone (SA) 5G mobile communication systems. Furthermore, the various embodiments of this application can also be applied to various converged communication systems, such as a converged system of satellite communication systems and 5G communication systems.

[0147] For ease of description, the embodiments of this application are described using the network device side as the network device and the terminal device side as the terminal device as an example.

[0148] The following is combined FIG. 1 The schematic diagram of the communication system shown illustrates the communication system applicable to the embodiments of this application. FIG. 1 As shown, the communication system 1000 includes an access network (AN) 100. Optionally, the communication system may also include a core network 200 and an Internet 300. The access network 100 may include at least one network device (or network equipment, or network-side equipment), such as... FIG. 1 The system includes 110a and 110b. 110a is a base station, and 110b is a microstation. The communication system 1000 may also include at least one terminal device (or terminal equipment), such as... FIG. 1 The numbers 120a to 120j represent different devices. 120a, 120e, 120f, and 120j are mobile phones; 120b is a car; 120c is a fuel dispenser; 120d is a home access point (HAP) deployed indoors or outdoors; 120g is a laptop; 120h is a printer; and 120i is a drone. The same terminal device or network device can provide different functions in different application scenarios. For example... FIG. 1The mobile phones in the figure are 120a, 120e, 120f and 120j, the mobile phone 120a can access the base station 110a, connect the car 120b, communicate directly with the mobile phone 120e and access the HAP, the car 120b can access the HAP and communicate directly with the mobile phone 120a, the mobile phone 120f can access the micro station 110b, connect the notebook computer 120g, connect the printer 120h, and the mobile phone 120j can control the unmanned aerial vehicle 120i.

[0149] 1. Network device

[0150] The network device is a network-side device with wireless transceiving function. The network device can be a device, equipment or module with corresponding communication function located at the network side of a communication system. The network device is usually provided with a communication module, circuit or chip for performing corresponding communication functions. The network device is also configured with program instructions for performing corresponding communication functions and corresponding program instructions. The network device can include a core network device and / or an access network device. The access network device can be a device in a radio access network (RAN) that provides wireless communication functions for terminal equipment, which can be referred to as a RAN device. The RAN can be an access network in the 3rd generation partnership project (3GPP), such as 4G, 5G, or a future-oriented communication network. The RAN can also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a communication network of two or more of the above networks.

[0151] The RAN device can also be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.

[0152] The RAN device can also be a module or unit that completes the function of the base station part, for example, can be a CU, can also be a distributed unit DU, and can also be a radio unit (RU). The CU and the DU can be separately arranged, or can also be included in the same network element, for example, in a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, included in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH). Embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0153] In embodiments of the present application, the functions of the network device can also be performed by a module (such as a chip) in the network device, or by a control subsystem containing the functions of the network device. The control subsystem containing the functions of the network device herein can be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, and smart city.

[0154] 2. Terminal device

[0155] The terminal device is a user-side equipment with wireless transceiving function. The terminal device can also be referred to as a terminal equipment, a terminal, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal equipment can be widely applied in various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiving function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, a mobile station (MS), a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a wireless modem, a handset, a laptop computer, or a machine type communication (MTC) terminal, etc. The terminal device is usually provided with a communication module, circuit or chip for performing corresponding communication functions, and is also configured with program instructions for performing corresponding communication functions. In various embodiments of the present application, the device for realizing the function of the terminal device can be the terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system or a combination device or component capable of realizing the function of the terminal device, which can be installed in the terminal device. The embodiments of the present application do not limit the specific technology and specific equipment form adopted by the terminal device.

[0156] In the embodiments of the present application, the function of the terminal device can also be performed by a module (such as a chip or a modem) in the terminal device, or by a device containing the function of the terminal device.

[0157] The network device and the terminal device can be fixed in position or movable. The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; and can also be deployed on an airplane, a balloon and a man-made satellite in the air. The embodiments of the present application do not limit the application scenarios of the network device and the terminal device.

[0158] The roles of network devices and terminal devices can be relative, for example, FIG. 1 The helicopter or drone 120i in FIG. 1 can be configured to move a network device, for terminal devices 120j that access the wireless access network 100 through 120i, 120i is a network device; but for the network device 110a, 120i is a terminal device, that is, 110a and 120i communicate through a wireless air interface protocol. Of course, 110a and 120i can also communicate through an interface protocol between network devices and network devices, at this time, 120i is also a network device relative to 110a. Therefore, network devices and terminal devices can be collectively referred to as communication devices, FIG. 1 110a and 110b in FIG. 1 can be referred to as communication devices with network device functions, FIG. 1 120a-120j in FIG. 1 can be referred to as communication devices with terminal device functions.

[0159] Network devices and terminal devices, network devices and network devices, and terminal devices and terminal devices can communicate through licensed spectrum, unlicensed spectrum, or both, without limitation.

[0160] FIG. 2 A communication system to which embodiments of the present application are applicable is illustrated. FIG. 2 A possible structure of an access network device is illustrated in FIG. 1. As FIG. 2 indicated, the access network device (which can be an eNB or gNB or next-generation access network equipment, etc.) communicates with the core network, specifically a core network device in the core network, through a backhaul link, and communicates with a terminal device through an air interface.

[0161] By way of example, the BBU in the access network device communicates with the core network through a backhaul link, and the radio unit (RU) in the access network device communicates with at least one UE through an air interface. The BBU communicates with at least one RU through a fronthaul link. The BBU and the RU can be co-located or not.

[0162] The BBU includes at least one CU and at least one DU, and the CU and the DU can communicate through at least one midhaul link.

[0163] The architecture of the access network device can be open, in which case the access network device can also be referred to as an O-RAN device or O-RAN device, etc. The open architecture of the access network device is described below with reference to FIG. 3 FIG. 2.

[0164] FIG. 3 The module function division and protocol layer in the access network device are specifically shown. As shown in FIG. 3 The access network device includes at least one of a CU, a DU or a RU.

[0165] In some examples, the CU is a logical node carrying a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer and other control functions of the access network device. The CU is connected to network nodes such as a core network through some interfaces, which can be an E2 interface or the like.

[0166] Optionally, the CU can have part of the functions of the core network. The CU (for example, a PDCP layer and a higher layer) is connected to the DU (for example, a radio link control (RLC) layer and a lower layer) through some interfaces, which can be an F1 interface or the like. In some examples, these interfaces (for example, the F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (for example, interface management, system information management, UE context management, RRC message transmission, etc.). The application protocol of the F1 interface is, for example, F1AP, which defines the signaling process of F1 in some examples. The F1 interface supports a control plane F1-C and a user plane F1-U.

[0167] In some examples, the CU can be split into a control unit control plane (CU-CP) and a control unit user plane (CU-UP). The CU-CP is a logical node carrying an RRC layer and a PDCP control (C) layer (which can be abbreviated as PDCP-C) and is used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network for implementing the control plane function. The network element in the core network for implementing the control plane function can be an access and mobility function network element, such as an access and mobility management function (AMF) in a 5G system. The AMF network element is used to be responsible for the mobility management in the mobile network, such as location update of a terminal device, registration network of the terminal device, handover of the terminal device, etc.

[0168] The CU-UP is a logical node that carries the SDAP layer and the PDCP user (PDCP-U) layer, and is used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network that is used to implement the user plane function (UPF). The network element in the core network that is used to implement the user plane function, for example, the user plane (User Plane Function, UPF) in the 5G system, is used to be responsible for the forwarding and receiving of data in the terminal device.

[0169] The above is an example of the configuration of the CU and the DU. The functions of the CU and the DU can be flexibly configured according to requirements. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layer. For example, part of the functions of the RLC layer and the functions of the protocol layer above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to the service type or other system requirements, for example, according to the delay. The functions that need to meet the delay requirement of the processing time are arranged in the DU, and the functions that do not need to meet the delay requirement are arranged in the CU.

[0170] In some examples, the DU is a logical node that carries the RLC layer, the medium access control (MAC) layer, the higher physical (Higher PHY) layer, and other functions. In some examples, the DU can control at least one RU. The DU is connected to the RU through some interfaces, which can be front-haul interfaces. In some examples, the Higher PHY layer includes part of the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and other processing functions.

[0171] In some examples, the RU is a logical node that carries the lower physical (Lower PHY) layer and radio frequency (RF) processing.

[0172] In some examples, the RU can be a 3GPP transmission reception point (TRP) or a remote radio head (RRH) or other similar functional entity. In some examples, the Low-PHY includes portions of PHY processing such as fast Fourier transform (FFT), inverse fast Fourier transformation (IFFT), digital beamforming and filtering, and other processing functions. The RU communicates with one or more UEs over a wireless link.

[0173] The DU and the RU can or can not be co-located. The DU and the RU exchange control plane information and user plane information via a lower-layer split-CUS-Plane (LLS-CUS / LLS-C / U / S) interface over a fronthaul link. The LLS-CUS can include a LLS-C interface and a LLS-U interface that provide a control plane (C-Plane) and a user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and the RU. The DU and the RU have a LLS-M interface of the fronthaul link to exchange management information, and the management plane (M-Plane) refers to non-real-time management operations between the DU and the RU. The management plane (M-Plane) can interact with a management system.

[0174] The DU and the RU can cooperate to collectively implement the functionality of the PHY layer. One DU can be connected to one or more RUs. The functionality of the DU and the RU can be configured in multiple ways according to design. For example, the DU is configured to implement baseband functionality, and the RU is configured to implement mid- radio frequency functionality. As another example, the DU is configured to implement high-layer functionality in the PHY layer, and the RU is configured to implement low-layer functionality in the PHY layer or to implement the low-layer functionality and radio frequency functionality. The high-layer functionality in the PHY layer can include a portion of the functionality of the PHY layer that is closer to the MAC layer, and the low-layer functionality in the PHY layer can include another portion of the functionality of the PHY layer that is closer to the mid-radio frequency side.

[0175] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as O-CU (open CU), the DU can also be referred to as O-DU, the CU-CP can also be referred to as O-CU-CP, the CU-UP can also be referred to as O-CU-UP, and the RU can also be referred to as O-RU. Any of the CUs (or CU-CP, CU-UP), DUs and RUs in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The RA device can be a macro base station, a micro base station or an indoor station, and can also be a relay node or a donor node, etc.

[0176] In various embodiments of the present application, the number of nouns means "singular noun or plural noun" unless otherwise specified, that is, "one or more". "At least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. For example, A / B means A or B. "At least one of the following" or the like means any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b, or c means 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.

[0177] In various embodiments of the present application, the words "exemplarily", "such as", "for example" and the like are used to represent examples, illustrations or descriptions. Any embodiment or design scheme described as "example" in this application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "example" is intended to present the concept in a specific manner. In the embodiments of the present application, "of", "corresponding / relevant" and "corresponding" can be used interchangeably at times, and it should be noted that when their differences are not emphasized, they express the same meaning.

[0178] In various embodiments of the present application, "indication" can include direct indication, indirect indication, display indication or implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A. In the present application, the information indicated by the indication information is referred to as to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of various information agreed in advance (for example, the protocol stipulates), thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately in multiple sub-information, and the sending period and / or sending time of these sub-information can be the same or different.

[0179] In various embodiments of the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface by other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, between components, between modules, between chips, between software modules or hardware modules in a device through a bus, a wire or an interface.

[0180] Here, some nouns related to the embodiments of the present application are explained. When not specifically stated, these explanations are to support the meanings of some nouns and make the embodiments of the present application easier to understand, and should not be regarded as strict limitations on the terms in the protection scope required by the present application.

[0181] 1、reference signal (RS)

[0182] It can also be called a pilot signal or a pilot, for example, a signal provided by the sending end to the receiving end for channel estimation, channel sounding, or data demodulation, etc. The reference signal can include uplink reference signal and downlink reference signal. The uplink reference signal is, for example, a demodulation reference signal (DMRS) or a sounding reference signal (SRS). The DMRS can include, for example, a DMRS for physical uplink control channel (PUCCH) demodulation (which can be referred to as DMRS for PUCCH) and a DMRS for physical uplink share channel (PUSCH) demodulation (which can be referred to as DMRS for PUCCH), a phase tracking reference signal (PTRS). The downlink reference signal is, for example, a channel state information-reference signal (CSI-RS), a cell-specific reference signal (C-RS / CRS), or a positioning reference signal (P-RS / PRS). It should be understood that there are many reference signals, and as the standard evolves, the names of the above-mentioned reference signals may change, and more reference signals may appear, which are not specifically limited. The SRS can be an SRS for beam management, or an SRS for codebook-based uplink transmission, or an SRS for non-codebook-based uplink transmission, or an SRS for antenna selection, which is not specifically limited.

[0183] The first signal involved in the embodiments of the present application can be, for example, an uplink reference signal such as the SRS described above, or other non-reference uplink signals (or channels) such as PUCCH, PUSCH, physical random access channel (PRACH) or other uplink signals, etc.

[0184] 2. Full band and sub-band

[0185] The full band refers to the entire frequency range used for signal transmission, for example, the frequency spectrum occupied during signal transmission. The sub-band refers to a smaller frequency range in the full band. One full band can be divided into multiple sub-bands.

[0186] 3. Resource (resource)

[0187] It includes time domain resources and / or frequency domain resources.

[0188] 3-1, Time domain resources

[0189] It includes symbol, slot, mini-slot, partial slot, sub-frame, frame (or frame), or sensing slot, etc. A symbol is, for example, one orthogonal frequency division multiplexing (OFDM) symbol.

[0190] One slot can include at least one symbol, for example, 14 symbols, or 12 symbols. A slot can have different slot types, and different slot types include different numbers of symbols, such as a mini-slot containing less than 7 symbols, 2 symbols, 3 symbols, 4 symbols, etc., a normal slot containing 7 symbols or 14 symbols, etc.

[0191] According to different subcarrier spacings, each symbol length can be different, and thus the slot length can be different. For example, a 15 kHz subcarrier spacing corresponds to a slot length of 0.5 ms, a 60 kHz subcarrier spacing corresponds to a slot length of 0.125 ms, and so on.

[0192] A slot is a basic time unit in the frame structure of a fifth generation (5 th generation, 5G) new radio (NR) system, which contains a series of OFDM symbols. The length of a slot can vary depending on different subcarrier spacings (SCSs) to support different use cases and requirements, such as enhanced mobile broadband (eMBB) or ultra reliable and low latency communication (URLLC). In 5G NR, the flexibility of slot length is a key to enable dynamic scheduling and optimize resource allocation in the network. For example, a slot can consist of 14 OFDM symbols, but under certain SCSs, the number and duration of slots can be adjusted to meet the delay and transmission requirements of specific services.

[0193] A symbol refers to a symbol period in an OFDM system, which is the smallest unit of time for transmitting data. A symbol contains modulated data on multiple subcarriers. OFDM transmits data by dividing a wideband channel into multiple orthogonal narrowband subcarriers, each of which can independently carry modulated data. In 5G NR, the length of a symbol depends on the subcarrier spacing, and the larger the subcarrier spacing, the shorter the symbol period, which can reduce inter-symbol interference caused by multipath propagation and adapt to rapidly changing wireless environments.

[0194] The time unit involved in the embodiments of the present application can be understood as a unit of time domain resource, or can be understood as a division unit of time domain resource, etc. A time unit includes a plurality of sub-time units, for example, a time unit is a slot, and a sub-time unit is a symbol. For another example, a time unit is a mini-slot, and a sub-time unit is a symbol, etc.

[0195] 3-2, Frequency domain resource

[0196] The unit of frequency domain resource can be a frequency domain unit, or the frequency domain resource can be divided into one or more frequency domain units. The frequency domain unit includes, for example, a band, a carrier, a bandwidth part (BWP), a sub-band, a resource block (RB), a resource element (RE) (or resource particle, resource unit or resource element), or a sub-channel, etc.

[0197] A sub-band includes one or more RBs. An RB is a basic unit for frequency domain resource allocation in a fifth generation (5 th generation,5G) new radio (NR) system. An RB is composed of a certain number of subcarriers, which span part or all of the symbols of a slot. In a given slot, the network can allocate one or more RBs for data transmission.

[0198] For example, an RB contains 12 subcarriers with subcarrier spacing ranging from 15 kHz to 240 kHz. The subcarrier spacing can be designed according to different scenarios and requirements, etc., so that the network can flexibly adapt to different quality of service (QoS) requirements and user experience needs. The concept of RB is to optimize and simplify the allocation of wireless resources. In 5G NR, the network can allocate one or more RBs to users according to their data needs. This allocation can be dynamic or semi-static, depending on the mobility and service requirements of users.

[0199] A RE is the most basic unit of physical layer transmission in 5G NR. Each RE corresponds to one subcarrier in the frequency domain and one symbol in the time domain. In simple terms, a RE is a time-frequency grid in which a modulated data symbol or a reference signal can be transmitted. For example, SRS is transmitted through a set of specific resource elements, which are organized in one or more slots and span several subcarriers. Such a configuration allows SRS to cover the entire bandwidth, providing full-band channel information. The configuration of SRS (i.e., the resource elements it occupies) is defined by higher layer signaling and can be dynamically changed to adapt to different network conditions and user needs.

[0200] A subchannel is the smallest unit of frequency domain resources occupied by a physical sidelink shared channel, and a subchannel can include one or more resource blocks (RBs). The bandwidth of a wireless communication system in the frequency domain can include multiple RBs, for example, in the various possible bandwidths of an LTE system, the included physical resource blocks (PRBs) can be 6, 15, 25, 50, etc.

[0201] 4. Bandwidth and bandwidth cap

[0202] The bandwidth can also be referred to as the actual bandwidth, actual transmission bandwidth, or actual measurement bandwidth, etc., without limitation on its name. The bandwidth refers to the frequency range of the frequency spectrum occupied by the signal in the frequency domain. The size of the bandwidth refers to the width occupied by the signal in the frequency domain. The size of the bandwidth can be the difference between the frequency at the start position of the bandwidth in the frequency domain and the frequency at the end position of the bandwidth in the frequency domain.

[0203] The size of the bandwidth can have various representations. For example, the size of the bandwidth can be represented by the value of the frequency width, for example, the size of the bandwidth used to transmit the first signal on a certain time slot is 1 megahertz (MHz), that is, there will be 1 MHz used to transmit the first signal on the time slot.

[0204] For example, the size of the bandwidth can also be represented by the number of frequency units. For example, the size of the bandwidth actually used to transmit the first signal on a certain time slot is 24 subcarriers, or 2 RBs, or 1 subband, etc.

[0205] The bandwidth used to transmit the signal on a certain time unit is less than or equal to the bandwidth cap used to transmit the signal on the time unit, or the bandwidth used to transmit the signal on a certain time unit is part or all of the bandwidth cap used to transmit the signal on the time unit.

[0206] The bandwidth upper limit can also be referred to as a maximum measurement bandwidth, a measurement bandwidth, a maximum bandwidth, or an upper limit bandwidth, etc. The bandwidth upper limit refers to a maximum bandwidth or a maximum frequency range used for transmitting a signal. For example, the bandwidth upper limit of a time unit used for transmitting a first signal can be understood as a maximum frequency range of the time unit used for transmitting the first signal. Specifically, for example, the bandwidth upper limit of a time unit used for transmitting a first signal is 24 RBs, that is, a maximum of 24 RBs are used for transmitting the first signal on the time unit.

[0207] The sizes of the bandwidths used for transmitting signals on the two time units involved in the embodiments of the present application can be the same, but the starting positions and / or ending positions of the two bandwidths in the frequency domain can be different. Similarly, the sizes of the bandwidth upper limits used for transmitting signals on the two time units involved in the embodiments of the present application can be the same, but the starting positions and / or ending positions of the two bandwidth upper limits in the frequency domain can be different.

[0208] 5. Channel measurement (or estimation)

[0209] The terminal device can send a reference signal to the network device, and the network device measures the channel based on the reference signal. Similarly, the network can also send a reference signal to the terminal device, and the terminal device performs channel measurement based on the reference signal.

[0210] In a time-division duplexing (TDD) system, based on the assumption of uplink and downlink channel reciprocity, SRS can be used to measure the uplink channel. The terminal device sends SRS to the network device, and the network device measures the uplink channel by receiving these signals.

[0211] 6. Comb multiplexing

[0212] The signals of multiple terminal devices can be sent on different frequency domain resources on the same symbol of the same time slot. The frequency domain resources occupied by the multiple terminal devices in the frequency domain can be distinguished by configuring different comb modes. For example, the comb mode can make the signal of a certain terminal device be mapped every interval of one or more subcarriers, thereby forming a comb-shaped spectral distribution. The comb size is used to represent the number of subcarriers that a certain terminal device is spaced. The comb size can be referred to as a comb size, a comb number, or a comb interval, etc., without limitation on its name. For example, the comb size is 2, which means that the terminal device transmits signals every 2 subcarriers on a symbol.

[0213] Please refer to FIG. 4 for a schematic diagram of a comb multiplexing. FIG. 4 A schematic diagram of UE1 and UE2 comb multiplexing the frequency domain resources on a symbol is shown. As FIG. 4As shown, the comb size of UE1 is 2, and the comb size of UE2 is also 2, specifically, UE1 uses the 1st, 3rd, 5th, 7th, 9th, 11th subcarriers in the symbol to transmit signals, and UE2 uses the 2nd, 4th, 6th, 8th, 10th, 12th subcarriers in the symbol to transmit signals.

[0214] 7. Code division multiplexing

[0215] It is to distinguish different original signals by different encoding. For example, signals on different ports can occupy the same resource, and be distinguished by cyclic shift of signals on different ports. For example, in the resource mapping process of the physical layer, the SRS frequency domain sequence is mapped to the corresponding resource particle according to the time-frequency position allocated by the related parameters, and then converted (such as IFFT) to form a symbol in the time domain. Zadoff-Chu (ZC) sequence has good constant amplitude zero auto correlation (CAZAC) characteristics, so the same ZC sequence can be used to distinguish different phase rotations (cyclic shifts in the time domain) on the same RE.

[0216] 8. Wideband SRS transmission

[0217] By transmitting a wideband SRS, the full band (also referred to as the entire target frequency band) of the SRS is covered at one time. The advantage of this method is that only one SRS transmission is needed to report the full band information of the SRS to the network device. For example, the 1st, 2nd or 4th symbol in the last 6 symbols of the subframe can be used to send SRS, which can be a wideband SRS or a narrowband SRS. The symbols used to transmit SRS cannot be used to transmit uplink data. Therefore, from the perspective of resource utilization, wideband SRS transmission uses fewer symbols to detect the entire bandwidth, and is therefore more efficient.

[0218] 9. Narrowband SRS frequency hopping transmission

[0219] By transmitting multiple narrowband SRSs and hopping in the frequency domain, the SRSs are then jointly transmitted to cover the entire bandwidth of the SRS. This method is more advantageous in the case of high uplink path loss, because the wideband SRS transmission can result in a relatively low power spectral density (PSD). The power spectral density can be expressed as the power per RB, and the power per RB = total symbol power / number of RBs included in each hop bandwidth. Narrowband SRS transmission allows the limited transmit power to be concentrated in a narrow frequency range, and the signal gain can be improved by hopping, thereby improving the accuracy of channel estimation.

[0220] 10. Hopping

[0221] In 5G NR, especially in the wideband scenario, due to the power consumption limitation of the terminal device, the terminal device can not be able to transmit an SRS covering the entire bandwidth at one time. Therefore, SRS hopping allows the terminal device to transmit SRSs of different frequency parts at different time instances, so that the terminal device can poll the entire bandwidth by time division under the power consumption limitation. The more the number of hops, the fewer the RBs occupied by each hop, and the higher the power spectral density of the signal.

[0222] Hopping is usually in units of slots, i.e., a slot measures a bandwidth, which is referred to as inter-slot hopping. It can also be in units of symbols, and the network device configures multiple symbols in a slot to implement multiple hops, which is referred to as intra-slot hopping.

[0223] Please refer to FIG. 5 for a schematic diagram of hopping. FIG. 5 The horizontal axis in FIG. 5 represents time, and the vertical axis represents a subband. FIG. 5 As shown in , SRSs are transmitted on subband 0 of slot 0, SRSs are transmitted on subband 1 of slot 1, and SRSs are transmitted on subband Su of slot T, respectively. Each slot hops only once. T and Su are both positive integers.

[0224] As can be seen, inter-slot hopping hops in the frequency domain in units of subbands, and the flexibility of the transmitted signal is poor.

[0225] FIG. 5 As can be seen, inter-slot hopping hops in the frequency domain in units of subbands, and the flexibility of the transmitted signal is poor. FIG. 5As shown in FIG. 2, the SRS is transmitted on the subband 0 of the first symbol in the time slot 0, the SRS is transmitted on the subband 1 of the second symbol in the time slot 0, the SRS is transmitted on the subband 2 of the third symbol in the time slot 0, the SRS is transmitted on the subband 3 of the fourth symbol in the time slot 0, the SRS is transmitted on the subband 4 of the first symbol in the time slot 1, the SRS is transmitted on the subband 5 of the second symbol in the time slot 1, the SRS is transmitted on the subband 6 of the third symbol in the time slot 1, the SRS is transmitted on the subband 7 of the fourth symbol in the time slot 1, the SRS is transmitted on the subband (Su-3) of the first symbol in the time slot T, the SRS is transmitted on the subband (Su-2) of the second symbol in the time slot T, the SRS is transmitted on the subband (Su-1) of the third symbol in the time slot T, and the SRS is transmitted on the subband Su of the fourth symbol in the time slot T. Each time slot hops four times.

[0226] As can be seen, compared with inter-slot frequency hopping, intra-slot frequency hopping is compressed in time, but not compressed in frequency domain. That is, intra-slot frequency hopping still hops in frequency domain with subband as the minimum unit, and the flexibility of transmitting signals is poor.

[0227] Based on this, the embodiment of the present application provides a communication scheme, in which the number of sub-time units for transmitting the first signal in one time unit of the plurality of time units and / or the bandwidth for transmitting the first signal in the time unit is determined based on the measurement information. In this way, the bandwidth for transmitting the first signal and / or the number of sub-time units in each time unit is flexible and variable, which is beneficial to improve the flexibility of the resource for transmitting the first signal, and the bandwidth for transmitting the first signal and / or the number of sub-time units in one time unit is flexible and variable and related to the measurement information, which is beneficial to reduce the minimum resource occupied by a single transmission of the first signal, improve the power spectral density of the first signal, and on the other hand, the determined bandwidth and / or the number of sub-time units are more in line with the communication demand of the terminal device and the network device, thereby ensuring the communication quality between the terminal device and the network device. Further, in the case where the first signal is used for measuring the channel, it is beneficial to improve the accuracy of the network device in measuring the channel based on the first signal. In addition, the resource occupied by a single transmission of the first signal can be less, and the multiplexing capability of the wireless resource can be enhanced, thereby increasing the number of users in wireless resource multiplexing.

[0228] The communication scheme provided by the embodiment of the present application will be described below with reference to the accompanying drawings. In the corresponding drawings of each embodiment of the present application, the steps represented by the dashed lines are optional steps. In addition, the network device involved in each embodiment of the present application is, for example, FIG. 1 a network device (such as a base station), FIG. 2 an access network device or a core network device, or FIG. 3The access network device involved, the terminal device is, for example, FIG. 1 The terminal device involved, FIG. 2 The terminal device involved, etc. In addition, with the continuous evolution of standards, the names and / or functions of devices, etc. May change, which is not limited.

[0229] Please refer to FIG. 6 A schematic diagram of a communication method provided by an embodiment of the present application. The following will introduce FIG. 6 The steps involved are introduced.

[0230] S601, the terminal device sends measurement information to the network device. Correspondingly, the network device receives the measurement information from the terminal device. The measurement information indicates the measurement parameter of the channel between the terminal device and the network device.

[0231] The channel refers to the channel between the terminal device and the network device. The measurement information indicates or reflects the measurement parameter (or parameter, or information, or feature, or measurement result) of the channel, etc.

[0232] Exemplarily, the network device sends a first reference signal to the terminal device, for example, a downlink reference signal. The terminal device measures the first reference signal to obtain the measurement information. In this case, the measurement information indicates the measurement parameter of the downlink channel. However, due to the reciprocity of the uplink channel and the downlink channel, the measurement information also indicates the measurement parameter of the uplink channel. The measurement parameter indicated by the measurement information can include at least one of the received power of the first reference signal, such as the reference signal receiving power (RSRP), the path loss of the first reference signal transmission, or the channel state information (CSI). The measurement information can include the content of A1 and / or A2, which are introduced below.

[0233] A1, the measurement information includes information of channel sparsity. Correspondingly, the measurement parameter includes channel sparsity.

[0234] The channel sparsity indicates the condition of the channel, the change of the channel gain, the change of the power of the channel, or the change of the spectral density of the channel, etc. The channel gain describes the enhancement or attenuation of the signal in the transmission process. The channel gain can be represented by the increase or decrease of the power of the signal.

[0235] For example, the smaller the value of the channel sparsity is, the flatter the channel is, or the smaller the channel gain variation is, or the smaller the channel power variation is, or the smaller the channel spectral density variation is; the larger the value of the channel sparsity is, the less flat the channel is, or the larger the channel gain variation is, or the larger the channel power variation is, or the larger the channel spectral density variation is.

[0236] The channel sparsity can include channel sparsities of different granularities, or in other words, the channel sparsity can be divided into channel sparsities of different granularities, which are introduced below in combination with A1-1 or A1-2.

[0237] A1-1, the granularity is full band, and the channel sparsity includes the channel sparsity corresponding to the full band. The full band here can be the full band used for transmitting the first reference signal, and since the uplink channel and the downlink channel are reciprocal, the full band can also be regarded as the full band used for transmitting the first signal. Correspondingly, the measurement information includes the information of the channel sparsity corresponding to the full band. Under A1-1, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of full band.

[0238] For example, if the value of at least one bit in the measurement information is 1, it indicates that the channel sparsity corresponding to the full band is relatively dense; if the value of at least one bit in the measurement information is 0, it indicates that the channel sparsity corresponding to the full band is relatively sparse. For another example, if the value of at least one bit in the measurement information is 01, it indicates that the channel sparsity corresponding to the full band is relatively sparse; if the value of at least one bit in the measurement information is 10, it indicates that the channel sparsity corresponding to the full band is moderate; if the value of at least one bit in the measurement information is 11, it indicates that the channel sparsity corresponding to the full band is relatively dense.

[0239] A1-2, the granularity is sub-band, and the channel sparsity includes the channel sparsity corresponding to at least one sub-band. The at least one sub-band here can be obtained by dividing the full band used for transmitting the first reference signal. Correspondingly, the measurement information includes the information of the channel sparsity corresponding to the at least one sub-band. Under A1-2, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of sub-band.

[0240] Since the uplink channel and the downlink channel are reciprocal, the frequency range of the at least one sub-band can actually include the frequency range of the bandwidth upper limit of at least one time unit respectively used for transmitting the first signal, or in other words, the at least one sub-band includes the bandwidth upper limit corresponding to the at least one time unit. Correspondingly, the channel sparsity corresponding to the at least one sub-band includes the channel sparsity corresponding to the bandwidth upper limit of the at least one time unit.

[0241] The part or all of the sub-time units in each of the plurality of time units are used for transmitting (or sending, or receiving) the first signal, or can be described as the plurality of time units being used for transmitting the first signal, or can be described as the first signal occupying the part or all of the sub-time units in each of the plurality of time units to transmit the first signal. The time unit, the sub-time unit, and the content of the first signal can refer to the time unit, the sub-time unit, and the content of the first signal discussed above, which will not be listed here. The first signal is, for example, an SRS. The upper limit of the bandwidth of any time unit used for transmitting the first signal can be referred to as the upper limit of the bandwidth of the time unit. The upper limit of the bandwidth of the time unit represents the maximum bandwidth used for transmitting the first signal on the time unit. The content of the upper limit of the bandwidth can refer to the content of the upper limit of the bandwidth discussed above, which will not be listed here. The set of the upper limit of the bandwidth of the plurality of time units used for transmitting the first signal can be the full bandwidth of the first signal, that is, the upper limit of the bandwidth of a certain time unit used for transmitting the first signal is part of the full bandwidth of the first signal.

[0242] Optionally, the starting frequency domain positions for transmitting the first signal on at least two of the plurality of time units are different, or it can be described that the starting positions in the frequency domain for transmitting the first signal on the at least two of the plurality of time units are different, or it can be described that the transmission manner (or transmission mode) of the first signal on the plurality of time units is frequency hopping transmission, or the first signal is frequency-hopped transmitted on the plurality of time units, or it can be described that the first terminal device performs first-level frequency hopping on the plurality of time units. The starting frequency domain position for transmitting the first signal on a certain time unit can be understood as the position of the frequency domain used for transmitting the first signal on the time unit. Optionally, the starting frequency domain positions for transmitting the first signal on any two of the plurality of time units are different.

[0243] For example, the time unit is a slot, and the plurality of time units include slot 0, slot 1, and slot 2. The starting frequency domain position for transmitting the first signal on slot 0 is, for example, the 2nd RB, the starting frequency domain position for transmitting the first signal on slot 1 is the 5th RB, and the starting frequency domain position for transmitting the first signal on slot 2 is the 7th RB. As can be seen, the starting frequency domain positions for transmitting the first signal on slot 0, slot 1, and slot 2 are all different.

[0244] For ease of description, the following will take the channel sparsity corresponding to the upper limit of the bandwidth on the first time unit in the at least one time unit as an example for introduction. The first time unit involved in various embodiments of the present application can refer to any time unit in the plurality of time units, or can refer to each time unit in the plurality of time units. That is, the first time unit in various embodiments of the present application can be replaced by any time unit or each time unit.

[0245] The following is an example of a channel sparsity corresponding to a bandwidth upper limit of a first time unit.

[0246] Optionally, a formula for calculating the channel sparsity can refer to the content of the following formula (1).

[0247]

[0248] wherein S represents the channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents a maximum channel gain corresponding to the bandwidth upper limit of the one time unit, gain min represents a minimum channel gain corresponding to the bandwidth upper limit of the one time unit, gain avg represents an average channel gain corresponding to the bandwidth upper limit of the one time unit, w1 and w2 are both real numbers, w1 is less than w2. For example, r1, r2 and r3 in the formula (1) can be 1, 2 and 3 respectively, and w1 and w2 can be 1.5 and 2 respectively.

[0249] In the case where the channel sparsity is calculated by the above formula (1), if the value of the channel sparsity is greater, it indicates that the power spectral density corresponding to the bandwidth upper limit of the first time unit is flatter, and if the value of the channel sparsity is smaller, it indicates that the power spectral density corresponding to the bandwidth upper limit of the first time unit is less flat.

[0250] Optionally, the measurement information can be in the form of a bit sequence, a bitmap, a pattern, a table or a table index, indicating the channel sparsity, without specific limitation on its form. For example, the measurement information in the form of a bit sequence indicates the channel sparsity corresponding to the bandwidth upper limit of each time unit in the plurality of time units. For example, each bit in at least one bit in the measurement information can be used to indicate the channel sparsity corresponding to the bandwidth upper limit of one time unit in the plurality of time units.

[0251] For example, please refer to FIG. 7 An example of the measurement information provided by the embodiments of the present application. FIG. 7 The channel spectral density (such as the power spectral density of the channel) is illustrated, and the channel sparsity corresponding to the channel spectral density. In addition, as FIG. 7As shown, at least one bit in the measurement information is: 11100011000011100. Wherein "1" represents not sparse, and "0" represents sparse. Then the measurement information indicates that the channel sparsity corresponding to the bandwidth upper limit of the plurality of time units is respectively: channel not sparse, channel not sparse, channel not sparse, channel sparse, channel sparse, channel sparse, channel not sparse, channel not sparse, channel sparse, channel sparse, channel sparse, channel sparse, channel not sparse, channel not sparse, channel not sparse, channel sparse, channel sparse.

[0252] A2, the measurement information includes information of channel path loss. Correspondingly, the measurement parameter includes channel path loss.

[0253] The channel path loss can be obtained by the terminal device measuring the first reference signal. Correspondingly, the channel path loss can be the path loss of the first reference signal transmission. Due to the reciprocity of the uplink channel and the downlink channel, the channel path loss can actually be the path loss of the first signal transmission. The channel path loss can be referred to as path loss, path loss, etc., and its name is not limited. The channel path loss refers to the loss caused by space propagation. For example, the smaller the value of the channel path loss, the flatter the channel, or the smaller the gain loss of the channel, or the smaller the power loss of the channel, or the smaller the spectral density loss of the channel; the larger the value of the channel path loss, the more uneven the channel, or the larger the gain loss of the channel, or the larger the power loss of the channel, or the larger the spectral density loss of the channel.

[0254] The channel path loss can include different granularities of path loss, or in other words, the channel path loss can be divided into different granularities of path loss, which will be introduced below in combination with A2-1 or A2-2.

[0255] A2-1, the granularity is full band, and the channel path loss includes the channel path loss corresponding to the full band. The full band here can be the full band used to transmit the first reference signal, and due to the reciprocity of the uplink channel and the downlink channel, the full band can also be regarded as the full band used to transmit the first signal. Correspondingly, the measurement information includes information of the channel path loss corresponding to the full band. Under A2-1, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of full band.

[0256] For example, if the value of at least one bit in the measurement information is 1, it indicates that the channel path loss in the full band is high; if the value of at least one bit in the measurement information is 0, it indicates that the channel path loss in the full band is low. For example, if the value of at least one bit in the measurement information is 01, it indicates that the channel path loss in the full band is low; if the value of at least one bit in the measurement information is 10, it indicates that the channel path loss in the full band is medium; if the value of at least one bit in the measurement information is 11, it indicates that the channel path loss in the full band is high.

[0257] A2-2, the granularity is sub-band, then the channel path loss comprises channel path loss respectively corresponding to at least one sub-band. Correspondingly, the measurement information comprises information of channel path loss respectively corresponding to at least one sub-band. Under A2-2, the terminal device sending the measurement information is equivalent to the terminal device reporting the measurement information in units of sub-band.

[0258] The at least one sub-band comprises a bandwidth upper limit corresponding to a plurality of time units respectively. Correspondingly, the channel path loss can comprise channel path loss respectively corresponding to a bandwidth upper limit corresponding to at least one time unit.

[0259] Optionally, the measurement information can be in the form of a bit sequence, a bitmap, a pattern, a table or a table index, which form is not limited. For example, the measurement information in the form of a bit sequence indicates the channel path loss corresponding to the bandwidth upper limit of each time unit in the plurality of time units. Specifically, each bit in at least one bit in the measurement information can be used to indicate the channel path loss corresponding to the bandwidth upper limit corresponding to one time unit in the plurality of time units.

[0260] Please continue as FIG. 7 shown, FIG. 7 The channel path loss corresponding to the transmission of the first signal is also shown. At least one bit in the measurement information is: 11100010111101100, wherein "1" represents low channel path loss, and "0" represents high channel path loss. Then the measurement information indicates that the channel path loss of the first reference signal transmission in the bandwidth upper limit of the plurality of time units is respectively: low channel path loss, low channel path loss, low channel path loss, high channel path loss, high channel path loss, high channel path loss, low channel path loss, high channel path loss, low channel path loss, low channel path loss, low channel path loss, low channel path loss, high channel path loss, low channel path loss, low channel path loss, high channel path loss, high channel path loss.

[0261] Optionally, the measurement information is carried in dedicated signaling or in channel state information report (CSI report), which is not limited. The terminal device can periodically report the measurement information, or report the measurement information after measurement, or report the measurement information when the network device requests the terminal device to report the measurement information, which is not limited to the timing of reporting.

[0262] S602, the network device indicates the resource for transmitting the first signal to the terminal device. Correspondingly, the terminal device receives the resource for transmitting the first signal indicated by the network device. S602 can also be described as: the network device sends an indication of the resource for transmitting the first signal to the terminal device, and correspondingly, the terminal device receives the indication of the resource for transmitting the first signal from the network device.

[0263] The resource includes at least one sub-time unit of one time unit in a plurality of time units, and a bandwidth for transmitting the first signal on the one time unit. The number and / or the bandwidth of the at least one sub-time unit is determined based on the measurement information. The at least one sub-time unit refers to a sub-time unit of the one time unit for transmitting the first signal. Hereinafter, the one time unit is still taken as an example of the first time unit. That is, the resource includes at least one sub-time unit of the first time unit, and a bandwidth for transmitting the first signal on the first time unit. The at least one sub-time unit is used for transmitting the first signal, or in other words, the sub-time unit of the first time unit for transmitting the first signal includes the at least one sub-time unit. For ease of description, the bandwidth for transmitting the first signal on the first time unit is referred to as the bandwidth on the first time unit or the bandwidth of the first time unit. The bandwidth of the first time unit is less than or equal to an upper limit of the bandwidth of the first time unit for transmitting the first signal.

[0264] The network device can determine the bandwidth on the first time unit and / or the number of the at least one sub-time unit based on the measurement information.

[0265] The content of the measurement information is different, and the way of determining the bandwidth on the first time unit and the number of the at least one sub-time unit is also different, which is introduced respectively as follows.

[0266] B1, the measurement information includes information of a channel sparsity corresponding to an upper limit of the bandwidth on the first time unit, and then the network device determines the bandwidth on the first time unit according to the information of the channel sparsity corresponding to the upper limit of the bandwidth on the first time unit.

[0267] The greater the channel sparsity, the smaller the bandwidth on the first time unit determined by the network device, and / or the smaller the channel sparsity, the greater the bandwidth on the first time unit determined by the network device. Or it can be described that the bandwidth on the first time unit is inversely related to the value of the channel sparsity.

[0268] For example, the network device can determine the bandwidth corresponding to the value range to which the channel sparsity corresponding to the upper limit of the bandwidth of the first time unit belongs in the first correspondence relationship as the bandwidth of the first time unit. The first correspondence relationship indicates the correspondence between at least one value range of the channel sparsity and at least one bandwidth.

[0269] Please refer to Table 1 below for an example of a first correspondence relationship provided by an embodiment of the present application. In Table 1, the values of r1, r2 and r3 in formula (1) are taken as 1, 2 and 3 respectively as an example.

[0270] Table 1

[0271] Value of channel sparsity Bandwidth (expressed in the number of RBs) 1 24 2 12 3 6

[0272] As shown in Table 1 above, if the value of the channel sparsity corresponding to the bandwidth upper limit of the first time unit is 1, the network device can determine that the bandwidth of the first time unit is 24 RBs. If the value of the channel sparsity corresponding to the bandwidth upper limit of the first time unit is 2, the network device can determine that the bandwidth of the first time unit is 12 RBs. If the value of the channel sparsity corresponding to the bandwidth upper limit of the first time unit is 3, the network device can determine that the bandwidth on the first time unit is 6 RBs.

[0273] B2, the measurement information includes information of the channel path loss corresponding to the bandwidth upper limit on the first time unit, the network device determines the number of at least one sub-time unit according to the information of the channel path loss corresponding to the bandwidth upper limit on the first time unit. For example, the number of at least one sub-time unit can be represented as R, and R can also be understood as the number of frequency hopping within the first time unit.

[0274] The smaller the absolute value of the channel path loss corresponding to the bandwidth upper limit on the first time unit, the more the number of at least one sub-time unit determined by the network device, i.e., the more the number of sub-time units on the first time unit for transmitting the first signal. And / or, the larger the absolute value of the channel path loss corresponding to the bandwidth upper limit on the first time unit, the less the number of at least one sub-time unit determined by the network device, i.e., the less the number of sub-time units on the first time unit for transmitting the first signal. Or it can be described that the absolute value of the channel path loss corresponding to the bandwidth upper limit on the first time unit is inversely related to the value of at least one sub-time unit.

[0275] For example, the network device determines the number of sub-time units matched with the value range of the channel path loss corresponding to the bandwidth upper limit of the first time unit in the second correspondence relationship as the number of at least one sub-time unit. The second correspondence relationship indicates the correspondence between at least one value range of the channel path loss and at least one number of sub-time units.

[0276] Please refer to Table 2 below for an example of a second correspondence relationship provided by an embodiment of the present application.

[0277] Table 2

[0278] Value range of channel path loss (unit: decibel (dB)) Number of sub-time units Less than or equal to u1 4 Greater than u1 and less than u2 2 Greater than or equal to u2 1

[0279] As shown in Table 2 above, if the value of the path loss corresponding to the bandwidth upper limit of the first time unit is greater than or equal to u1, the network device can determine the number of the at least one sub-time unit as 4. If the value of the path loss corresponding to the bandwidth upper limit of the first time unit is greater than u1 and less than u2, the network device can determine the number of the at least one sub-time unit as 2. If the value of the path loss corresponding to the bandwidth upper limit of the first time unit is greater than or equal to u2, the network device can determine the number of the at least one sub-time unit as 1. u1 and u2 are both real numbers, u1 is less than u2, and optionally, u1 is, for example, 100 dB, and u2 is, for example, 140 dB.

[0280] For another example, the plurality of time units include time slot 1, time slot 2, and time slot 3, the path loss corresponding to the bandwidth upper limit of time slot 1 is low, the path loss corresponding to the bandwidth upper limit of time slot 2 is high, and the path loss corresponding to the bandwidth upper limit of time slot 3 is medium, then the number of the sub-time units used for transmitting the first signal on time slot 1 can be determined as 4, the number of the sub-time units used for transmitting the first signal on time slot 2 can be determined as 1, and the number of the sub-time units used for transmitting the first signal on time slot 3 can be determined as 2.

[0281] In the case that the bandwidth on the first time unit is determined based on the measurement information, the number of the at least one sub-time unit can be pre-configured or pre-defined in the network device, or determined by negotiation between the network device and the terminal device, which is not limited. For example, the number of the at least one sub-time unit is 2. Similarly, in the case that the number of the at least one sub-time unit is determined based on the measurement information, the bandwidth on the first time unit can be pre-configured or pre-defined in the network device, or determined by negotiation between the network device and the terminal device, which is not limited.

[0282] The above is an example introduction to the way of determining the bandwidth on the first time unit and the number of the at least one sub-time unit, and there are many ways to actually determine the bandwidth on the first time unit and the number of the at least one sub-time unit, which is not specifically limited.

[0283] The indication of the resource used for transmitting the first signal by the network device to the terminal device includes the indication of the bandwidth on the first time unit and the at least one sub-time unit by the network device to the terminal device. The content of the indication of the bandwidth on the first time unit by the network device to the terminal device is introduced as an example below.

[0284] For example, the network device can indicate the terminal device with a first quantity and a first location set of the at least one frequency domain resource. The first quantity can also be referred to as a reduction factor, a division quantity, or the like, and the name thereof is not limited. The first quantity represents a total quantity of frequency domain resources included in a bandwidth upper limit in the first time unit for transmitting the first signal. For example, the first quantity can be represented as P, and it can be understood that the bandwidth upper limit in the first time unit is divided into P parts or P frequency domain resources.

[0285] The first location set includes a first location of the bandwidth upper limit in the first time unit of the at least one frequency domain resource. For example, the index of the first location set can be represented as p∈{0,…,P-1}. Wherein, p represents the index of the first location of the bandwidth upper limit in the first time unit of a certain frequency domain resource. The at least one frequency domain resource is a frequency domain resource in the first time unit for transmitting the first uplink signal. The sum of the bandwidths of the at least one frequency domain resource is the bandwidth of the first time unit for transmitting the first signal. The bandwidth of the first time unit for transmitting the first signal is less than or equal to the bandwidth upper limit in the first time unit.

[0286] The bandwidth upper limit in the first time unit can be pre-configured in the terminal device or indicated by the network device, and the specific limitation is not limited. Optionally, the network device indicates the terminal device with a frequency hopping index, a first parameter, and a frequency hopping parameter, which are used to determine (or indicate) the bandwidth upper limit in each time unit of the plurality of time units for transmitting the first signal.

[0287] The frequency hopping index can be represented as C SRS , the first parameter can be represented as B SRS , and the frequency hopping parameter can be represented as b hop . Taking the transmission bandwidth of the first time unit as an example, the bandwidth upper limit of the first time unit can be represented as the following formula (2).

[0288]

[0289] Wherein, represents the number of subcarriers occupied by the first time unit for transmitting the first signal; m SRS,b represents the number of RBs occupied by the first time unit in the frequency domain; is the number of subcarriers occupied by one RB, such as , the value of TC represents the comb size. Wherein, m SRS,b and both can be used to represent the bandwidth upper limit of the first time unit, but the units adopted by the bandwidth upper limit are different.

[0290] Optionally, m SRS,b is based on the frequency hopping index CSRS and the first parameter B SRS is determined.

[0291] Exemplarily, the terminal device and the network device are both preconfigured with the third correspondence, for example, both are configured with the third correspondence through a protocol. Alternatively, the network device indicates (or configures) the third correspondence to the terminal device, for example, the network device can indicate the third correspondence to the terminal device through high-layer signaling (such as radio resource control (RRC)) or other signaling. The correspondence corresponding to the embodiments of the present application can be referred to as an association relationship, a correlation relationship, etc., and the name thereof is not limited.

[0292] Example 1: The third correspondence indicates a correspondence between a plurality of frequency hopping indexes C SRS and a plurality of first parameters B SRS . In this way, the second information can include the frequency hopping index C SRS and the first parameter B SRS , so that the terminal device can determine the total bandwidth and the bandwidth upper limit of each of the plurality of time units respectively from the third correspondence based on the frequency hopping index C SRS and the first parameter B SRS included in the second information. The total bandwidth represents the sum (or total bandwidth) of the bandwidth upper limits of the plurality of time units for transmitting the first signal.

[0293] Example 2: The third correspondence can also indicate a correspondence between a plurality of frequency hopping indexes C SRS , a plurality of first parameters B SRS , and a frequency hopping number corresponding to a first-level frequency hopping. In this way, the second information can include the frequency hopping index C SRS , the first parameter B SRS , and the frequency hopping number corresponding to the first-level frequency hopping, so that the terminal device can determine the total bandwidth, the bandwidth upper limit of each of the plurality of time units, and the frequency hopping number corresponding to the first-level frequency hopping from the third correspondence based on the frequency hopping index C SRS , the first parameter B SRS , and the frequency hopping number corresponding to the first-level frequency hopping included in the second information. The frequency hopping number corresponding to the first-level frequency hopping can also be understood as the number of time units for transmitting the first signal, that is, the number of the plurality of time units.

[0294] Optionally, the second information further includes a frequency hopping parameter b hop . In this way, the terminal device can determine the total bandwidth, the bandwidth upper limit of each of the plurality of time units, and the frequency hopping number corresponding to the first-level frequency hopping from the third correspondence based on the frequency hopping index C SRS , the first parameter B SRS , and the frequency hopping parameter b hopThe measured total bandwidth can also be determined from the third correspondence relationship. The measured total bandwidth refers to the sum of the bandwidths used for transmitting the first signal in the plurality of time units. The measured total bandwidth is less than or equal to the total bandwidth.

[0295] The third correspondence relationship can be in the form of one or more tables, one or more functions, etc. and is not limited in form. For example, refer to Table 3 below for an example of the third correspondence relationship provided by an embodiment of the present application.

[0296] Table 3

[0297]

[0298]

[0299]

[0300] As shown in Table 3, the total bandwidth m SRS,0 The maximum supported bandwidth is 272 RBs (i.e., 272 RBs) and the minimum supported bandwidth is 4 RBs (i.e., 4 RBs). The upper limit of the bandwidth of each time unit is an integer multiple of 4 RBs. The total bandwidth can be indicated by a frequency hopping index C SRS with a value of 0 to 63, corresponding to 64 different configurations. In different configurations, the total bandwidth m SRS,0 may be the same (e.g., C SRS = 61-63), but the upper limit of the optional bandwidth m SRS,b may be different. For example, the upper limit of the bandwidth can be indicated by B SRS , for example, the upper limit of the bandwidth occupied in the first time unit is m SRS,b (where b = B SRS ). The frequency hopping number of the first level frequency hopping is calculated by b hop ∈ {0, 1, 2, 3}, if b hop ≥ B SRS , no frequency hopping, if b hop < B SRS , frequency hopping.

[0301] The following is an example based on Table 3.

[0302] Suppose the network device indicates C SRS = 24 and b hop = 0. Based on the third correspondence relationship shown in Table 3, the terminal device can determine that the total bandwidth for transmitting the first signal is m SRS,0 = 96 RBs.

[0303] Example 1, if B SRS = 0, b hop ≥ B SRS , no frequency hopping, the measured total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 96 RBs, the number of frequency hopping of the first level frequency hopping is N0 = 1, i.e. no frequency hopping.

[0304] Example 2, if B SRS = 1, b hop < B SRS Frequency hopping is required, the measured total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 48 RBs, the number of frequency hopping of the first level frequency hopping is N0*N1 = 2, or the number of time units used is 2.

[0305] Example 3, if B SRS = 2, b hop < B SRS Frequency hopping is required, the measured total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 24 RBs, the number of frequency hopping of the first level frequency hopping is N0*N1*N2 = 4, or the number of time units used is 4.

[0306] Example 4, if B SRS = 3, b hop < B SRS Frequency hopping is required, the measured total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 4 RBs, the number of frequency hopping of the first level frequency hopping is N0*N1*N2*N3 = 24, or the number of time units used is 24.

[0307] Suppose the network device indicates C SRS = 24, b hop = 1. The terminal device can determine the total bandwidth for transmitting the first signal based on Table 3 as m SRS,0 = 96 RBs.

[0308] Example 5, if B SRS = 1, b hop ≥ B SRS No frequency hopping, the measured total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0 = 48 RBs, the number of frequency hopping of the first level frequency hopping is N1 = 1.

[0309] Example 6, if B SRS = 2, b hop < B SRS Frequency hopping is required, the measured total bandwidth is The upper limit of the bandwidth in the first time unit is m SRS,0= 24 RBs, the frequency hopping number of the first level frequency hopping is N1*N2 = 2, or the number of the multiple time units is 2.

[0310] Example 7, if B SRS = 3, b hop <B SRS The total bandwidth for frequency hopping is The bandwidth upper limit on the first time unit is m SRS,0 = 4 RBs, the frequency hopping number of the first level frequency hopping is N1*N2*N3 = 12, or the number of the multiple time units is 12.

[0311] The above table 1 is an example of the third correspondence relationship, and the content and form of the third correspondence relationship are not limited.

[0312] Since the bandwidths for transmitting the first signal on the multiple time units and / or the number of the sub-time units can be different, the network device can respectively indicate the bandwidth for transmitting the first signal on each time unit of the multiple time units and the sub-time unit for transmitting the first signal to the terminal device.

[0313] For example, the network device can indicate the bandwidth for transmitting the first signal on each time unit of the multiple time units and the sub-time unit for transmitting the first signal in the form of a table, a diagram or a bit map, and the form is not limited. Optionally, the bandwidth can be represented by a first number and a first position set.

[0314] For example, the first number, the first position set on each time unit of the multiple time units, and the number of the sub-time units for transmitting the first signal can be in the form as shown in the following table 4. In table 1, the multiple time units include time unit 1, time unit 2 and time unit 3.

[0315] Table 4

[0316] Time unit Number of sub-time units Index of the first position set Time unit 1 2 {1,2}，{3,4} Time unit 2 3 {1,2}，{3,4}，{3} Time unit 3 1 {1}

[0317] As shown in the above table 1, the number of the sub-time units for transmitting the first signal on the time unit 1 is 2, and the frequency domain resource 1 and the frequency domain resource 2 in the first sub-time unit of the two sub-time units are used for transmitting the first signal, and the frequency domain resource 3 and the frequency domain resource 4 on the second sub-time unit are used for transmitting the first signal.

[0318] The number of sub-time units used for transmitting the first signal on the time unit 2 is 3, and the frequency domain resource 1 and the frequency domain resource 2 on the first sub-time unit of the 3 sub-time units are used for transmitting the first signal, the frequency domain resource 3 and the frequency domain resource 4 on the second sub-time unit are used for transmitting the first signal, and the frequency domain resource 1 on the third sub-time unit is used for transmitting the first signal.

[0319] The number of sub-time units used for transmitting the first signal on the time unit 3 is 1, and the frequency domain resource 1 on the first sub-time unit of the 1 sub-time unit is used for transmitting the first signal.

[0320] For example, the first number, the first position set, and the form of the sub-time unit used for transmitting the first signal on each of the plurality of time units can refer to the schematic diagram of the resource used for transmitting the first signal shown in the following FIG. 8 or FIG. 9 . FIG. 8 and FIG. 9 , wherein the time unit is the time slot, the sub-time unit is the symbol, the plurality of time units include time slot 1, time slot 2, and time slot 3, one frequency domain unit (or one small grid) represents 2 RBs, and the first number is 4.

[0321] As shown in FIG. 8 , the number of sub-time units used for transmitting the first signal on the time slot 1 is 1, the number of sub-time units used for transmitting the first signal on the time slot 2 is 2, and the number of sub-time units used for transmitting the first signal on the time slot 3 is 2. In addition, the first position set used for transmitting the first signal on the time slot 1 is {2, 3}, the first position set used for transmitting the first signal on the time slot 2 includes {2; 3}, and the first position set used for transmitting the first signal on the time slot 3 includes {1, 2; 3, 4}.

[0322] As shown in FIG. 9 , the number of sub-time units used for transmitting the first signal on the time slot 1 is 1, the number of sub-time units used for transmitting the first signal on the time slot 2 is 4, and the number of sub-time units used for transmitting the first signal on the time slot 3 is 2. In addition, the first position set used for transmitting the first signal on the time slot 1 is {1, 2, 3, 4}, the first position set used for transmitting the first signal on the time slot 2 includes {1; 2; 3; 4}, and the first position set used for transmitting the first signal on the time slot 3 includes {1, 2; 3, 4}.

[0323] The above is an example of the network device indicating the bandwidth used for transmitting the first signal on each of the plurality of time units and the form of the sub-time unit used for transmitting the first signal. In fact, there are many ways for the network device to indicate, which are not limited here.

[0324] In a possible implementation, the position of the starting sub-time unit in the at least one sub-time unit is pre-configured or pre-defined in the terminal device. Alternatively, the network device indicates the position of the starting sub-time unit in the at least one sub-time unit to the terminal device. The starting sub-time unit can be understood as a sub-time unit starting to be used for transmitting the first signal on the first time unit. For example, the network device sends first indication information to the first terminal device. The first indication information indicates the starting sub-time unit. Optionally, the first indication information can also be carried in DCI or RRC, for example, the first indication information is carried in the resourceMapping field in RRC.

[0325] For example, the first indication information indicates a first offset value. The first offset value represents the number of sub-time units of the interval between the starting sub-time unit and the ending sub-time unit in the first time unit, and the first offset value is a positive integer. The first offset value can be represented by l offset For example, l offset ∈{0,1,…,13}. In this way, the first terminal device can determine the starting sub-time unit based on the first offset value.

[0326] For example, the formula for determining the starting sub-time unit is as follows.

[0327]

[0328] wherein l0 represents the number (or index, or identifier, etc.) of the starting sub-time unit; represents the total number of sub-time units included in the first time unit.

[0329] For example, FIG. 10 An example of the at least one sub-time unit is shown. FIG. 10 Taking a time unit as a slot and a sub-time unit as a symbol as an example.

[0330] FIG. 10 An example of the at least one sub-time unit is shown in FIG. 1. As shown in FIG. 1, FIG. 10 As shown in FIG. 1, l offset = 2, the starting sub-time unit l0 = 11, and the at least one sub-time unit includes symbol 11.

[0331] FIG. 10 An example of the at least one sub-time unit is shown in FIG. 2. As shown in FIG. 2, FIG. 10 As shown in FIG. 2, l offset = 11, the starting sub-time unit l0 = 2, and the at least one sub-time unit includes symbol 2 to symbol 13.

[0332] In a possible implementation, the network device further indicates the frequency hopping period of the first signal to the terminal device, or the terminal device is pre-configured or pre-defined with the frequency hopping period of the first signal. The frequency hopping period of the first signal is used to indicate the length of the interval between two adjacent time units in the plurality of time units. For example, the frequency hopping period of the first signal is 2 slots, and then the terminal device transmits the first signal on the first slot and transmits the first signal on the third slot. Alternatively, the terminal device is pre-configured or pre-defined with the frequency hopping period of the first signal, which is not specifically limited.

[0333] The terminal device can determine the resource used for transmitting the first signal based on the indication of the network device.

[0334] The first position of each frequency domain resource in the first position set is the position of each frequency domain resource in the at least one frequency domain resource in the upper limit of the bandwidth of the first time unit. Therefore, the terminal device can determine the position of each frequency domain resource in the at least one frequency domain resource in the total bandwidth based on the first position set.

[0335] For example, the terminal device can determine the position of each frequency domain resource in the at least one frequency domain resource in the total bandwidth according to the second position and the first position set. The second position is the position of the starting frequency domain resource in the at least one frequency domain resource in the total bandwidth, that is, the starting frequency domain resource in the at least one frequency domain resource refers to the starting frequency domain resource used for transmitting the first signal on the frequency domain corresponding to the first time unit. The second position can be indicated by the network device or determined by the terminal device.

[0336] In a possible implementation, the terminal device determines the second position based on a second parameter. The second parameter represents the order of the first time unit in the plurality of time units for transmitting the first signal, or can be understood as the counting result of the frequency hopping number of the first-level frequency hopping transmission when the first time unit is used for transmitting the first signal. For example, the plurality of time units include slot 0, slot 1 and slot 2, if the first time unit is slot 2, then the order of the first time unit is 3, that is, the frequency hopping number of the first-level frequency hopping is 3, that is, the value of the second parameter is 3.

[0337] For example, the second parameter satisfies the following formula (4).

[0338]

[0339] Wherein, n SRS is the third parameter, is the number of time units included in one frame, n f is the frame number of one frame, is the number of the first time unit in one frame, T offsetis an offset between a sub-time unit of the first time unit and a starting sub-time unit in the at least one sub-time unit, T SRS is a frequency hopping period of the first signal.

[0340] Optionally, if b hop ≥ B SRS , i.e. no frequency hopping transmission, the third parameter and the second position can satisfy the following formula (5).

[0341]

[0342] wherein n b represents an index of the second position, or represents a position index of the starting frequency domain resource; b RRC represents the third parameter, which can be pre-configured or pre-defined in the terminal device and the network device, or configured by the network device to the terminal device, and no specific limitation is made to this; mod represents a modulo operation; N b represents a number of values of N0, N1, N2 or N3 in the row corresponding to the frequency hopping index pair in Table 3.

[0343] Optionally, if b hop < B SRS , i.e. frequency hopping transmission, the second parameter and the second position can satisfy the following formula (6).

[0344]

[0345] wherein since the value of N0 is fixed as 1, the value of n0 can be calculated as 0. In the case of frequency hopping (b hop < B SRS ), is time-varying, wherein F b (n SRS ) can be represented as the following formula (7).

[0346]

[0347] In combination with the content of the above formulae (4) and (6), the position of one frequency domain resource in the total bandwidth in the at least one frequency domain resource can be represented as the following formula (8).

[0348]

[0349] wherein, represents a starting position of one frequency domain resource in the total bandwidth, represents a starting position of the total bandwidth, K TC is a comb size, n b represents an index of the second position, B SRSa first parameter, represents a number of subcarriers included in the transmission bandwidth in the first time unit.

[0350] For example, the content of the above formula (8), the first number and the first position set, the position of one of the at least one frequency domain resource in the total bandwidth can also be represented as the content of the following formula (9).

[0351]

[0352] wherein P represents the first number, and p represents an index of the first position of one frequency domain resource.

[0353] For example, assuming C SRS = 18, B SRS = 3, and the frequency hopping parameter b hop = 0. The number of RBs allocated for each layer is m SRS,b = 72, 24, 12, 4 (b = 0, 1, 2, 3), respectively. When n SRS = 0, according to the content of the above formula (8) or formula (9) and table 3, the frequency position index can be calculated as n b = 0, 2, 1, 0, respectively. With the increase of n SRS , the process of SRS frequency hopping for the first 5 times is as follows.

[0354] Table 5

[0355]

[0356] Please refer to FIG. 11 for a schematic diagram of the starting frequency domain position of the first level frequency hopping provided by the embodiments of the present application.

[0357] As FIG. 11 shown, and in combination with the content of the above table 1, if in the 0th layer, n0= 0, then the transmission bandwidth of the first time unit is 72 RBs. If in the 1st layer, n1= 0, 1 or 0, then the transmission bandwidth of the first time unit is 24 RBs. If in the 2nd layer, n2= 0, 1, 0, 1, 0 or 1, then the transmission bandwidth of the first time unit is 12 RBs. If in the 3rd layer, n3= 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 2, then the transmission bandwidth of the first time unit is 4 RBs.

[0358] As FIG. 11 shown, the starting position (n SRS = 0) of the first signal transmitted in the first time unit is the 16th frequency domain resource from left to right; the starting position (n SRS= 1) is the 4th frequency domain resource from left to right; the starting position (n SRS = 2) is the 10th frequency domain resource from left to right; the starting position (n SRS = 3) is the 13th frequency domain resource from left to right; the starting position (n SRS = 4) is the 1st frequency domain resource from left to right; the starting position (n SRS = 5) is the 7th frequency domain resource from left to right.

[0359] After the terminal device determines the resource used for transmitting the first signal, the terminal device can transmit the first signal based on the resource. Correspondingly, the network device can receive the first signal from the terminal device on the resource. Further, the network device can measure the channel between the terminal device and the network device, such as the uplink channel.

[0360] To improve the flexibility of transmitting the signal, an embodiment of the present application provides a communication scheme. In the scheme, the terminal device can transmit the first signal on the resource, and the resource includes multiple time units. The number of sub-time units used for transmitting the first signal is different in at least two time units of the multiple time units, and / or the bandwidth used for transmitting the first signal is different in at least two time units of the multiple time units. In this way, the flexibility of the resource used for transmitting the first signal is higher. In addition, this is beneficial to reduce the minimum resource occupied by transmitting the first signal at one time and improve the power spectral density of transmitting the first signal.

[0361] S1201, the terminal device transmits the first signal to the network device on the resource. Correspondingly, the network device receives the first signal from the terminal device on the resource.

[0362] The resource includes multiple time units respectively used for transmitting the sub-time units of the first signal, and the bandwidth respectively used for transmitting the first signal on the multiple time units. The number of sub-time units used for transmitting the first signal is different in at least two time units of the multiple time units, and / or the bandwidth used for transmitting the first signal is different in at least two time units of the multiple time units. The content of the first signal, the multiple time units, the bandwidth, and the sub-time units can be referred to the content of the first signal, the multiple time units, the bandwidth, and the sub-time units discussed above respectively. FIG. 6 The content of the first signal, the multiple time units, the bandwidth, and the sub-time units discussed above is not listed here.

[0363] Optionally, the network device can measure the channel between the terminal device and the network device, such as the uplink channel.

[0364] In one possible implementation, the terminal device sends measurement information to the network device. Correspondingly, the network device receives the measurement information from the terminal device. The content of the measurement information can be referred to the preceding text. FIG. 6 The content of the measurement information discussed.

[0365] In one possible implementation, the network device indicates to the terminal device resources for transmitting the first signal. The network device determines the content of the resources for transmitting the first signal, and the network device indicates the content of the resources for transmitting the first signal; this can be referred to the preceding text. FIG. 6 The network device described determines the content of the resources used to transmit the first signal, and the network device indicates the content of the resources used to transmit the first signal; repeated instances will not be listed here.

[0366] Optionally, the above FIG. 6 The content related to the method embodiments shown can be referenced from [the relevant sources]. FIG. 12 The method embodiments shown will not be listed one by one here.

[0367] Based on the same inventive concept, embodiments of this application provide a communication device. The following describes... FIG. 13 to FIG. 15 The following describes any of the communication devices shown. For example, the communication device is... FIG. 1 The network devices involved (such as base stations), FIG. 2 The access network devices or core network devices involved, or FIG. 3 The access network device involved, the first terminal device is, for example, FIG. 1 The terminal devices involved, FIG. 2 The terminal devices involved may be modules within these devices, and no specific limitations are imposed.

[0368] like FIG. 13 As shown, the communication device 1300 may include modules or units for implementing the methods described in the embodiments above. In one possible design, the communication device 1300 includes a processing unit 1310 and a communication unit 1320. The communication unit 1320 is used to perform transmit and receive operations, such as functions related to sending and receiving; the communication unit 1320 may be referred to as a transceiver unit; optionally, the communication unit 1320 includes a receiving unit and a transmitting unit. The processing unit 1310 is used to perform processing operations. Alternatively, the communication unit 1320 may be a transmitter and a receiver, or the communication unit 1320 may be a transmitter and a receiver. Optionally, the communication device 1300 may also include a storage unit 1330. The storage unit 1330 is used to store the device's program code or data. FIG. 13 The dashed box in the image indicates that storage unit 1330 is an optional unit.

[0369] In the first embodiment, the communication device 1300 can be as described above. FIG. 6The terminal device in the method embodiment shown, the communication module in the terminal device, or the circuit or chip in the terminal device responsible for communication functions, or the implementation FIG. 6 The terminal device in the illustrated method embodiment has the following functions. For example, the communication device 1300 is a communication module in the terminal device, or a circuit or chip in the terminal device responsible for communication functions.

[0370] In the above embodiments, the communication unit 1320 is used to perform the steps of sending measurement information involved in S601 and acquiring the resources for transmitting the first signal involved in S602.

[0371] Communication device 1300 can also achieve the above-mentioned FIG. 6 Other steps performed by the terminal device in the implementation of the method shown are not listed here.

[0372] In the second embodiment, the communication device 1300 can be as described above. FIG. 6 The network device shown in the method embodiment, the communication module in the network device, or the circuit or chip in the network device responsible for communication functions, or the implementation FIG. 6 The network device in the illustrated method embodiment has the following functions. For example, communication device 1300 is a communication module in the network device, or a circuit or chip in the network device responsible for communication functions.

[0373] In the above embodiment, the communication unit 1320 is used to perform the steps of receiving measurement information involved in S601 and sending resources for transmitting the first signal involved in S602.

[0374] Communication device 1300 can also achieve the above-mentioned FIG. 6 Other steps performed by the network device in the implementation of the method shown are not listed here.

[0375] In the third embodiment, the communication device 1300 can be as described above. FIG. 12 The terminal device in the method embodiment shown, the communication module in the terminal device, or the circuit or chip in the terminal device responsible for communication functions, or the implementation FIG. 12 The terminal device in the illustrated method embodiment has the following functions. For example, the communication device 1300 is a communication module in the terminal device, or a circuit or chip in the terminal device responsible for communication functions.

[0376] In the above embodiment, the communication unit 1320 is used to perform the step of sending the first signal involved in S1201.

[0377] Communication device 1300 can also achieve the above-mentioned FIG. 12 Other steps performed by the terminal device in the implementation of the method shown are not listed here.

[0378] In a fourth embodiment, the communication apparatus 1300 can be the network device in the method embodiments described above, the communication module in the network device, the circuit or chip responsible for communication functions in the network device, or the like, or implement the functions of the network device in the method embodiments described above. FIG. 12 For example, the communication apparatus 1300 is the communication module in the network device, or the circuit or chip responsible for communication functions in the network device. FIG. 12 For example, the communication apparatus 1300 is the communication module in the network device, or the circuit or chip responsible for communication functions in the network device.

[0379] In the above embodiments, the communication unit 1320 is configured to perform the step of receiving the first signal in S1201.

[0380] The communication apparatus 1300 can also implement other steps performed by the network device in the method embodiments described above, which are not listed one by one here. FIG. 12

[0381] In a possible design, when the communication apparatus 1300 is the terminal device, the communication module in the terminal device, the access network device, or the communication module in the access network device, the function of the processing unit 1310 can be implemented by one or more processors. Specifically, the processor can include a Modem chip, or a System on Chip (SoC) chip or a SIP chip containing a Modem core. The function of the communication unit 1320 can be implemented by the transceiver circuit.

[0382] In a possible design, when the communication apparatus 1300 is the circuit or chip responsible for communication functions in the terminal device, or the circuit or chip responsible for communication functions in the access network device, such as a Modem chip or a System on Chip (SoC) chip or a SIP chip containing a Modem core, the function of the processing unit 1310 can be implemented by the circuit system including one or more processors or processor cores in the chip. The function of the communication unit 1320 can be implemented by the interface circuit or data transceiver circuit on the chip.

[0383] It can be understood that the division of the units in the above apparatus is only a logical functional division. Each function can correspond to a functional unit, or two or more functions can be integrated into one functional unit. In actual implementation, all or part of the units can be integrated into one physical entity, or distributed on different physical entities. In addition, the functional units can be implemented in the form of hardware, software, or a combination of hardware and software. Whether a function is implemented in hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0384] ​In one example, the functional unit in any of the above devices may be one or more integrated circuits configured to implement the above methods, such as: one or more application-specific integrated circuits (ASICs), or one or more central processing units (CPUs), one or more microcontroller units (MCUs), one or more DSPs, or one or more field-programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.

[0385] In one example, storage unit 1330 may include random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory and / or registers, etc.

[0386] The following is about FIG. 14 The communication device shown is described below. FIG. 14 As shown, the communication device 1400 includes a processor 1410. Optionally, the communication device 1400 also includes an interface circuit 1420 and a memory 1430. The processor 1410 and the interface circuit 1420 are coupled to each other. It is understood that the interface circuit 1420 can be a transceiver or an input / output interface. The memory 1430 is used to store instructions executed by the processor 1410, or to store input data required by the processor 1410 to execute instructions, or to store data generated after the processor 1410 executes instructions. The interface circuit 1420 and the memory 1430 are optional modules. FIG. 14 The image is indicated by a dashed box. Additionally... FIG. 14 The example given is a processor 1410 and a memory 1430, but the actual number of processors 1410 and memory 1430 is not limited.

[0387] Communication device 1400 is used to achieve FIG. 6 or FIG. 12 Any of the method embodiments shown. Optionally, the processor 1410 is used to implement the functions of the processing unit 1310, and the interface circuit 1420 is used to implement the functions of the communication unit 1320.

[0388] For example, communication device 1400 can be used to implement FIG. 6 The terminal device or network device used in the implementation of the method shown FIG. 12 The function of any terminal device or network device involved.

[0389] When the communication device 1400 is a chip applied to a device (such as the terminal device or network device mentioned above), the device chip implements the functions of the device in the above method embodiments. The device chip receives information from other modules (such as radio frequency modules or antennas) in the device, the information being sent to the device by other devices; or, the device chip sends information to other modules (such as radio frequency modules or antennas) in the device, the information being sent to other devices by the device. Here, the communication device 1400 can be a baseband chip of a device, or a DU or other modules. The DU here can be a DU under an open radio access network (O-RAN) architecture.

[0390] The processor 1410 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor. Furthermore, the memory involved in the various embodiments of this application can include volatile memory, such as random access memory (RAM). The memory can also include non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drives (HDDs), or solid-state drives (SSDs).

[0391] The following is about FIG. 15 The communication device shown is described below. FIG. 15 As shown, the communication device 1500 includes a processor 1510 and a transceiver 1530. The processor 1510 can also be referred to as a processing unit, processing board, processing module, or processing device. The implementation of the processor 1510 can be found in the preceding text. FIG. 14 The contents of processor 1410 are described. Transceiver 1530 can also be called a transceiver unit, transceiver, transceiver device, etc. Transceiver 1530 includes transmitter 1531, receiver 1532, and antenna 1533. Optionally, transceiver 1530 may also include radio frequency circuitry and input / output devices, etc., without specific limitations.

[0392] Optionally, the device in the transceiver 1530 for implementing the receiving function is regarded as a receiving module, and the device in the transceiver 1530 for implementing the sending function is regarded as a sending module, that is, the transceiver 1530 includes a receiver and a transmitter. The transceiver can also be referred to as a transceiver, a transceiver module, or a transceiver circuit, etc. The receiver can also be referred to as a receiver, a receiving module, or a receiving circuit, etc. The transmitter can also be referred to as a transmitter, a transmitting module, or a transmitting circuit, etc.

[0393] Optionally, the communication device 1500 can further include a memory 1520, which can store computer program code and / or data.

[0394] The processor 1510 is mainly used for processing communication protocols and communication data, and controlling the communication device 1500, executing software programs, processing data of the software programs, etc. The memory 1520 is mainly used for storing software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of the radio frequency signals. The antenna 1533 is mainly used for transceiving radio frequency signals in the form of electromagnetic waves. The input and output device, for example, a touch screen, a display screen, a keyboard, etc. is mainly used for receiving data input by a user and outputting data to the user.

[0395] When data needs to be sent, the processor 1510 performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit converts the baseband signal into a radio frequency signal, and transmits the radio frequency signal in the form of electromagnetic waves through the antenna. When data is sent to the communication device 1500, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor 1510 converts the baseband signal into data and processes the data. For the sake of description, FIG. 15 In the embodiment, only one memory 1520, one processor 1510 and one transceiver 1530 are shown. In actual terminal products, one or more processors 1510 and one or more memories 1520 can exist. The memory 1520 can also be referred to as a storage medium or a storage device, etc. The memory 1520 can be arranged independently of the processor 1510, or can be integrated with the processor 1510. This is not limited.

[0396] In the embodiment, the antenna and the radio frequency circuit having the transceiving function are regarded as the communication unit of the communication device 1500, and the processor having the processing function is regarded as the processing unit of the communication device 1500. The processor 1510 is used for executing the processing actions of the terminal device or the network device in the above-mentioned embodiments. FIG. 6 or FIG. 12 The transceiver 1530 is used for executing the transceiving actions of the terminal device or the network device in the above-mentioned embodiments.

[0397] When the communication device 1500 is a chip, the chip includes a processor and a transceiver. The transceiver can be an input / output circuit or a communication interface; the processor can be a processing module integrated on the chip or a microprocessor or an integrated circuit. Optionally, the chip can further include a memory. The sending operation of the terminal device or the network device in the method embodiments can be understood as the output of the chip, and the receiving operation of the terminal device or the network device in the method embodiments can be understood as the input of the chip.

[0398] The embodiment of the present application provides a communication system. The communication system includes a terminal device and a network device.

[0399] In a possible embodiment, the terminal device can implement the functions of the terminal device in the method embodiments shown in the above FIG. 6 , and the network device can implement the functions of the network device in the method embodiments shown in the above FIG. 6 .

[0400] In another possible embodiment, the terminal device can implement the functions of the terminal device in the method embodiments shown in the above FIG. 12 , and the network device can implement the functions of the network device in the method embodiments shown in the above FIG. 12 .

[0401] The embodiment of the present application provides a chip system. The chip system includes a processor and an interface. The processor is configured to call and run an instruction from the interface. When the processor executes the instruction, the method embodiments shown in any one of the above FIG. 6 or FIG. 12 are implemented.

[0402] The embodiment of the present application provides a computer readable storage medium. The computer readable storage medium is configured to store a computer program or an instruction. When the computer program or the instruction is run, the method embodiments shown in any one of the above FIG. 6 or FIG. 12 are implemented.

[0403] The embodiment of the present application provides a program product. When the program product is executed, the processor implements the method embodiments shown in any one of the above FIG. 6 or FIG. 12 . The program product is, for example, a computer program product, and specifically, for example, a computer program and / or an instruction. The processor is, for example, a processor running in a computer.

[0404] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer programs or instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are performed. The computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a user equipment or other programmable apparatus. The computer programs or instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer programs or instructions can be transferred from one website site, computer, server or data center to another website site, computer, server or data center through wired or wireless manner. The computer readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center and the like integrated with one or more available media. The available media can be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; an optical medium, such as a digital video disc; a semiconductor medium, such as a solid state disk. The computer readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile storage media.

[0405] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0406] The various digital numbers involved in the various embodiments of the present application are only used for differentiation for convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the execution order, and the execution order of the processes should be based on its function and inherent logic.

Claims

1. A communication method characterized by comprising: The method applied to a network device side comprises: receiving measurement information representing a measurement parameter of a channel between a terminal device side and the network device side; indicating a resource for transmitting a first signal, the resource comprising a sub-time unit for transmitting the first signal in one time unit of a plurality of time units, and a bandwidth for transmitting the first signal on the one time unit, the number of sub-time units for transmitting the first signal on the one time unit and / or the bandwidth for transmitting the first signal on the one time unit being determined based on the measurement information.

2. A communication method characterized by comprising: The method applied to a terminal device side comprises: sending measurement information representing a measurement parameter of a channel between the terminal device side and a network device side; receiving an indication of a resource for transmitting a first signal, the resource comprising a sub-time unit for transmitting the first signal in one time unit of a plurality of time units, and a bandwidth for transmitting the first signal on the one time unit, the number of sub-time units for transmitting the first signal on the one time unit and / or the bandwidth for transmitting the first signal on the one time unit being related to the measurement information.

3. The method according to claim 1 or 2, characterized in that, The measurement information comprises information of a channel sparsity corresponding to an upper limit of the bandwidth for transmitting the first signal on the one time unit, wherein: the smaller the channel sparsity, the larger the bandwidth for transmitting the first signal on the one time unit; or, the larger the channel sparsity, the smaller the bandwidth for transmitting the first signal on the one time unit.

4. The method of claim 3, wherein, The bandwidth for transmitting the first signal on the one time unit is a bandwidth in a first correspondence relationship that matches a value range to which the channel sparsity belongs, wherein: The first correspondence relationship indicates a correspondence relationship between at least one value range of a channel sparsity and at least one bandwidth.

5. The method according to any one of claims 1 to 4, characterized in that, The channel sparsity satisfies the following formula: wherein S represents the channel sparsity, r1, r2 and r3 are all real numbers, r3 is greater than r2, r2 is greater than r1, gain max represents the maximum channel gain corresponding to the bandwidth upper limit of the one time unit, gain min represents the minimum channel gain corresponding to the bandwidth upper limit of the one time unit, gain avg represents the average channel gain corresponding to the bandwidth upper limit of the one time unit, w1 and w2 are both real numbers, w1 is less than w2.

6. The method according to any one of claims 1 to 5, characterized in that, The measurement information comprises information of a channel path loss corresponding to an upper limit of the bandwidth for transmitting the first signal on the one time unit, wherein: the lower the channel path loss, the larger the number of sub-time units for transmitting the first signal on the one time unit; or, the higher the channel path loss, the smaller the number of sub-time units for transmitting the first signal on the one time unit.

7. The method of claim 6, wherein, The number of sub-time units for transmitting the first signal on the one time unit is a number of sub-time units in a second correspondence relationship that matches a value range to which the channel path loss belongs, wherein: The second correspondence relationship indicates a correspondence relationship between at least one value range of a channel path loss and at least one number of sub-time units.

8. The method according to any one of claims 1 to 7, characterized in that, The indication of the bandwidth for transmitting the first signal on the one time unit comprises: indicate a first quantity and a first position set of at least one frequency domain resource, wherein the first quantity represents a total quantity of frequency domain resources included in a bandwidth upper limit for transmitting the first signal in the one time unit, the at least one frequency domain resource is a frequency domain resource for transmitting the first uplink signal in the one time unit, and the first position set includes at least one first position, each of the at least one first position representing a position of one of the at least one frequency domain resource in the bandwidth upper limit for transmitting the first signal in the one time unit.

9. The method of claim 8, wherein, A position of one of the at least one frequency domain resource in a total bandwidth is determined based on a second position and a first position of the one frequency domain resource, the total bandwidth is a set of maximum transmission bandwidths for transmitting the first signal in the plurality of time units, and the second position is a position of a starting frequency domain resource in the at least one frequency domain resource in the total bandwidth.

10. The method of claim 9, wherein, The position of the one frequency domain resource in the total bandwidth satisfies the following formula: wherein, a start position of one frequency domain resource in a total bandwidth, denotes a start position of the total bandwidth, K TC is a comb size, n b denotes an index of the second position, B SRS is a first parameter, denotes a number of subcarriers included in an upper limit of a bandwidth in one time unit, P denotes the first number, and p denotes a first position of the one frequency domain resource.

11. The method according to claim 9 or 10, characterized in that, The second position is determined based on a second parameter, and the second parameter represents an order of the one time unit for transmitting the first signal in the plurality of time units.

12. The method of claim 11, wherein, The second parameter satisfies the following formula: wherein n SRS is the second parameter, is the number of time units included in one frame, n f is the frame number of the one frame, is the number of the one time unit within the one frame, T offset is the offset between the sub-time unit of the one time unit and the start sub-time unit of the at least one sub-time unit, T SRS is the frequency hopping period of the first signal.

13. The method according to any one of claims 1 to 12, characterized in that, At least two time units of the plurality of time units have different starting positions in the frequency domain for transmitting the first signal.

14. The method according to any one of claims 1 to 13, characterized in that, The bandwidth for transmitting the first signal in the one time unit is a partial bandwidth or the entire bandwidth in the bandwidth upper limit for transmitting the first signal in the first time unit.

15. The method according to any one of claims 1 to 14, characterized in that, The measurement information is carried in a channel state information report.

16. A method of communication, comprising: The method applied to a network device side includes: receiving a first signal on a resource, wherein the resource includes a plurality of time units respectively for transmitting a sub-time unit of the first signal, and a bandwidth respectively for transmitting the first signal in the plurality of time units, wherein at least two time units of the plurality of time units have different quantities of sub-time units for transmitting the first signal, and / or at least two time units of the plurality of time units have different bandwidths for transmitting the first signal.

17. A method of communication, comprising: The method applied to a terminal device side includes: transmitting a first signal on a resource, wherein the resource includes a plurality of time units respectively for transmitting a sub-time unit of the first signal, and a bandwidth respectively for transmitting the first signal in the plurality of time units, wherein at least two time units of the plurality of time units have different quantities of sub-time units for transmitting the first signal, and / or at least two time units of the plurality of time units have different bandwidths for transmitting the first signal.

18. A communication device, characterized by The device includes a communication unit configured to: receive measurement information representing a measurement parameter of a channel between a terminal device side and a network device side; indicate resources for transmitting a first signal, the resources comprising sub-time units in one time unit of a plurality of time units for transmitting the first signal, and a bandwidth on the one time unit for transmitting the first signal, a number of the sub-time units on the one time unit for transmitting the first signal and / or the bandwidth on the one time unit for transmitting the first signal being determined based on the measurement information.

19. A communications device, characterized by The device comprises a communication unit configured to: transmit measurement information representing a measurement parameter of a channel between a terminal device side and a network device side; receive an indication of resources for transmitting a first signal, the resources comprising sub-time units in one time unit of a plurality of time units for transmitting the first signal, and a bandwidth on the one time unit for transmitting the first signal, a number of the sub-time units on the one time unit for transmitting the first signal and / or the bandwidth on the one time unit for transmitting the first signal being related to the measurement information.

20. The apparatus of claim 18 or 19, wherein, The measurement information comprises information of a channel sparsity corresponding to an upper limit of the bandwidth on the one time unit for transmitting the first signal, wherein: the smaller the channel sparsity, the larger the bandwidth on the one time unit for transmitting the first signal; or the larger the channel sparsity, the smaller the bandwidth on the one time unit for transmitting the first signal.

21. The apparatus of claim 20, wherein, The bandwidth on the one time unit for transmitting the first signal is a bandwidth in a first correspondence matching a value range to which the channel sparsity belongs, wherein: The first correspondence indicates a correspondence between at least one value range of a channel sparsity and at least one bandwidth.

22. The apparatus of any one of claims 18-21, wherein, The measurement information is related to a first reference signal, and the measurement information comprises information of a channel path loss corresponding to an upper limit of the bandwidth on the one time unit for transmitting the first signal, wherein: the lower the channel path loss, the larger a number of the sub-time units on the one time unit for transmitting the first signal; or the higher the channel path loss, the smaller a number of the sub-time units on the one time unit for transmitting the first signal.

23. A computer program product, characterised in that, The computer program product, when executed, causes a processor to perform the method of any one of claims 1 and 3-15, or the method of any one of claims 2 and 3-15, or the method of claim 16, or the method of claim 17.

24. A computer-readable storage medium, characterized in that, The storage medium has stored therein a computer program or instructions, which, when executed by a communication device, implement the method of any one of claims 1 and 3-15, or the method of any one of claims 2 and 3-15, or the method of claim 16, or the method of claim 17.

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