Communication method and communication device

Abstract

Provided are a communication method and a communication device, the method being applicable to the field of communications, the method comprising: acquiring an initial cyclic shift value of an ith port in N ports corresponding to a sounding reference signal (SRS) resource and a first cyclic shift bias set corresponding to the N ports, where N is a positive integer, i is less than or equal to N, and N is a positive integer; the first cyclic shift bias set is associated with a first bitmap, and the length of the first bitmap is smaller than or equal to a maximum cyclic shift value; and sending the SRS according to the initial cyclic shift value and the first cyclic offset of the ith port in the first cyclic shift offset set. By means of the method, under the condition that a traditional UE exists in a communication system, the degree of freedom of cyclic shift jump of the target UE can be improved, and therefore the situation that the SRS sent by the target UE is interfered, and consequently the channel estimation quality is poor is avoided.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a communication method and a communication device. Background Art

[0002] The sounding reference signal (SRS) is a key reference signal for obtaining channel state information, especially for time division duplex (TDD) systems. By utilizing the reciprocity of uplink and downlink channels, uplink and downlink channel information can be obtained through SRS. In actual systems, considering the reference signal overhead and channel estimation performance, the number of available orthogonal SRS resources is often limited. However, there are many cells in the network, and the terminal devices in each cell will send SRS for channel measurement, which will cause the limited orthogonal SRS resources to be reused by multiple cells. For example, under an SRS resource allocation strategy, the terminal devices in each cell will allocate orthogonal SRS resources, while different cells will allocate non-orthogonal SRS resources, which will cause SRS interference between cells. At present, the SRS interference problem is one of the key factors restricting system performance.

[0003] Although the terminal equipment (UE) enables the SRS cyclic shift (CS) hopping or comb offset (CO) hopping function, the above-mentioned SRS interference problem can be effectively alleviated. However, when there are traditional UEs in the communication system (the traditional UEs cannot perform CS hopping or CO hopping), the freedom of the terminal equipment to perform hopping will be greatly reduced, resulting in many SRS resources being unable to be randomized. Summary of the invention

[0004] The present application provides a communication method and a communication device, which can improve the freedom of a target UE to jump when a traditional UE exists in a communication system, thereby avoiding the situation where an SRS sent by the target UE is interfered with and causes poor channel estimation quality.

[0005] In a first aspect, a communication method is provided, the method comprising: obtaining an initial cyclic shift value of an i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a maximum cyclic shift value; sending an SRS according to the initial cyclic shift value and the first cyclic offset of the i-th port in the first cyclic shift offset set.

[0006] Optionally, the initial cyclic shift value of the i-th port among the N ports corresponding to the SRS resource and the first cyclic shift offset set corresponding to the N ports may be acquired by receiving first indication information sent by the network device.

[0007] Optionally, in the first cyclic shift offset sets corresponding to the N ports, the first cyclic shift offset sets corresponding to each port may be the same or different.

[0008] Optionally, the first cyclic shift offset set is associated with the first bitmap, which can be understood as: the first cyclic shift offset set is determined based on the first bitmap.

[0009] Optionally, the first cyclic offset may be any cyclic offset in the first cyclic shift offset set.

[0010] In an embodiment of the present application, an SRS can be sent according to an initial cyclic shift value of the i-th port and a first cyclic offset of the i-th port in a first cyclic shift offset set. In this way, when there are traditional UEs in the communication system, the freedom of the target UE to perform cyclic shift hopping can be improved, thereby avoiding the situation where the SRS sent by the target UE is interfered with and causes poor channel estimation quality.

[0011] It should be understood that the traditional UE may refer to a terminal device that does not have the CS hopping or CO hopping function, the target UE may refer to a terminal device that has the CS hopping or CO hopping function, and the communication method provided in the present application may be executed by the target UE.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the length of the first bitmap is equal to the maximum cyclic shift value.

[0013] Optionally, the network device may indicate the maximum cyclic shift value to the terminal device, and the terminal device may determine the first cyclic shift offset set based on the first bitmap whose length is equal to the maximum cyclic shift value.

[0014] It should be understood that a bitmap may be a two-dimensional graphic representation method for representing an image, also known as a raster image or a dot matrix image.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

[0016] Optionally, the index with bit position 1 in the first bitmap can be understood as an available CS bias value, and the index with bit position 0 can be understood as an unavailable CS bias value. Alternatively, the index with bit position 0 can be understood as an available CS bias value, and the index with bit position 1 can be understood as an unavailable CS bias value.

[0017] In combination with the first aspect, in certain implementations of the first aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value -1.

[0018] Optionally, when the index with bit position 1 represents an available CS bias value, the highest bit in the first map is 1 by default, or when the index with bit position 0 represents an available CS bias value, the highest bit in the first map is 0 by default.

[0019] Optionally, the highest bit of the first bitmap may be the leftmost bit or the rightmost bit in the first bitmap.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the first bitmap is associated with a third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

[0021] Optionally, the first bitmap is associated with the third bitmap and the value of Q, which can be understood as: the first bitmap is determined based on the third bitmap and the value of Q.

[0022] In combination with the first aspect, in certain implementations of the first aspect, the Q value is associated with at least one of the following: the number of ports occupied by the SRS resources with the same comb teeth, the number of ports occupied by the SRS resources with different cyclic shifts, or the maximum cyclic shift value.

[0023] In combination with the first aspect, in some implementations of the first aspect, the first bitmap is associated with an index indicated by the network device.

[0024] Optionally, the first bitmap is associated with the index indicated by the network device, which can be understood as the first bitmap is determined based on the index indicated by the network device.

[0025] In a second aspect, a communication method is provided, which includes: obtaining an initial comb tooth offset value of the i-th port among N ports corresponding to an SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first comb tooth offset bias set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a comb tooth degree; sending an SRS according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset bias set.

[0026] Optionally, the initial comb tooth offset value of the i-th port among the N ports corresponding to the SRS resource and the first comb tooth offset bias set corresponding to the N ports may be acquired by receiving second indication information sent by the network device.

[0027] Optionally, in the first comb tooth offset bias sets corresponding to the N ports, the first comb tooth offset bias sets corresponding to each port may be the same or different.

[0028] Optionally, the first comb-tooth offset bias set is associated with the first bitmap, which can be understood as: the first comb-tooth offset bias set is determined based on the first bitmap.

[0029] Optionally, the first comb tooth bias may be any comb tooth bias of the first comb tooth offset bias set.

[0030] In an embodiment of the present application, SRS can be sent according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset offset set. In this way, when there are traditional UEs in the communication system, the freedom of the target UE to perform comb tooth offset jumping can be improved, thereby avoiding the situation where the SRS sent by the target UE is interfered with and causes poor channel estimation quality.

[0031] In combination with the second aspect, in some implementations of the second aspect, the length of the first bitmap is equal to the comb tooth degree.

[0032] Optionally, the network device may indicate the comb-teeth degree to the terminal device, and the terminal device may determine the first comb-teeth offset bias set according to the first bitmap whose length is equal to the comb-teeth degree.

[0033] In combination with the second aspect, in certain implementations of the second aspect, the first comb tooth offset bias set is an index of bit 1 or bit 0 in the first bitmap.

[0034] Optionally, the index with the bit position 1 in the first bitmap can be understood as an available CO bias value, and the index with the bit position 0 can be understood as an unavailable CO bias value. Alternatively, the index with the bit position 0 can be understood as an available CO bias value, and the index with the bit position 1 can be understood as an unavailable CO bias value.

[0035] In combination with the second aspect, in some implementations of the second aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree-1.

[0036] Optionally, when the index with bit position 1 represents an available CO bias value, the highest bit in the first map is 1 by default, or when the index with bit position 0 represents an available CO bias value, the highest bit in the first map is 0 by default.

[0037] Optionally, the highest bit of the first bitmap may be the leftmost bit or the rightmost bit in the first bitmap.

[0038] In combination with the second aspect, in some implementations of the second aspect, the first bitmap is associated with the third bitmap and a value of Q, and the comb-teeth degree is equal to Q times the length of the third bitmap.

[0039] Optionally, the first bitmap is associated with the third bitmap and the value of Q, which can be understood as: the first bitmap is determined based on the third bitmap and the value of Q.

[0040] In combination with the second aspect, in certain implementations of the second aspect, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by the SRS resources, or the comb tooth degree.

[0041] In combination with the second aspect, in some implementations of the second aspect, the first bitmap is associated with an index indicated by the network device.

[0042] Optionally, the first bitmap is associated with the index indicated by the network device, which can be understood as the first bitmap is determined based on the index indicated by the network device.

[0043] According to a third aspect, a communication method is provided, which includes: obtaining an initial cyclic shift value of an i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first cyclic shift offset set is associated with a third bitmap and a value of Q, and a length of the third bitmap is less than or equal to a maximum cyclic shift value; and sending an SRS according to the initial cyclic shift value and the first cyclic offset of the i-th port in the first cyclic shift offset set.

[0044] In combination with the third aspect, in certain implementations of the third aspect, the Q value is associated with at least one of the following: the number of ports occupied by the SRS resources with the same comb teeth, the number of ports occupied by the SRS resources with different cyclic shifts, or the maximum cyclic shift value.

[0045] In a fourth aspect, a communication method is provided, which includes: obtaining an initial comb tooth offset value of the i-th port among N ports corresponding to an SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first comb tooth offset bias set is associated with a third bitmap and a value of Q, and a length of the third bitmap is less than or equal to the comb tooth degree; sending an SRS according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset bias set.

[0046] In combination with the fourth aspect, in certain implementations of the fourth aspect, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by the SRS resources, or the comb tooth degree.

[0047] In a fifth aspect, a communication method is provided, comprising: obtaining a port number corresponding to the i-th port among N ports corresponding to a detection reference signal SRS resource, wherein N is a positive integer, i is less than or equal to N, and the N ports are divided into two groups and mapped to different OFDM symbols respectively; determining a cyclic shift value corresponding to the i-th port according to a cyclic shift reference index and the port number corresponding to the i-th port; determining a comb tooth corresponding to the i-th port according to a comb tooth offset value and the port number corresponding to the i-th port, wherein the cyclic shift value corresponding to the i-th port is different from the cyclic shift value corresponding to the i+4th port.

[0048] Optionally, the method may be applied when N=8 and the high-level parameter tdm is enabled.

[0049] In an embodiment of the present application, the cyclic shift value corresponding to the ith port can be determined by the port number corresponding to the ith port and the cyclic shift reference index. Since the cyclic shift value corresponding to the ith port is different from the cyclic shift value corresponding to the (i+4)th port, when the SRS resources include 8 ports and the port groups are mapped to different symbols, resource collisions caused by discontinuous port numbers being assigned to the same group can be avoided.

[0050] In combination with the fifth aspect, in some implementations of the fifth aspect, the cyclic shift value corresponding to the i-th port is determined according to the following formula:

[0051]

[0052] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the cyclic shift value corresponding to the i-th port is determined according to the following formula:

[0053]

[0054] In conjunction with the fifth aspect, in some implementations of the fifth aspect, the cyclic shift value corresponding to the i-th port is determined according to the following formula:

[0055]

[0056] In combination with the fifth aspect, in some implementations of the fifth aspect, the comb teeth corresponding to the i-th port are determined according to the following formula:

[0057]

[0058] In combination with the fifth aspect, in certain implementations of the fifth aspect, N=8, wherein port 0, port 4, and port 5 occupy a first OFDM symbol, and port 2, port 3, port 6, and port 7 occupy a second symbol, and the first symbol is different from the second symbol.

[0059] In the sixth aspect, a communication method is provided, comprising: configuring an initial cyclic shift value of the i-th port among N ports corresponding to SRS resources and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with a first bitmap, and the length of the first bitmap is less than or equal to the maximum cyclic shift value; sending first indication information to a terminal device, the first indication information comprising: the initial cyclic shift value and the first cyclic shift offset set.

[0060] In combination with the sixth aspect, in certain implementations of the sixth aspect, the length of the first bitmap is equal to the maximum cyclic shift value.

[0061] In combination with the sixth aspect, in certain implementations of the sixth aspect, the first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

[0062] In combination with the sixth aspect, in certain implementations of the sixth aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value -1.

[0063] In combination with the sixth aspect, in certain implementations of the sixth aspect, the first bitmap is associated with the third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

[0064] In combination with the sixth aspect, in certain implementations of the sixth aspect, the value of Q is associated with at least one of the following: the number of ports occupied by the SRS resources with the same comb teeth, the number of ports occupied by the SRS resources with different cyclic shifts, or the maximum cyclic shift value.

[0065] In the seventh aspect, a communication method is provided, comprising: configuring an initial comb tooth offset value of the i-th port among N ports corresponding to SRS resources and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first comb tooth offset bias set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a comb tooth degree; sending second indication information to a terminal device, the second indication information comprising: the initial comb tooth offset value and the first comb tooth offset bias set.

[0066] In combination with the seventh aspect, in certain implementations of the seventh aspect, the length of the first bitmap is equal to the comb tooth degree.

[0067] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first comb tooth offset bias set is an index of bit 1 or bit 0 in the first bitmap.

[0068] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree - 1.

[0069] In combination with the seventh aspect, in certain implementations of the seventh aspect, the first bitmap is associated with the third bitmap and a value of Q, and the comb-teeth degree is equal to Q times the length of the third bitmap.

[0070] In combination with the seventh aspect, in certain implementations of the seventh aspect, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by the SRS resources, or the comb tooth degree.

[0071] In combination with the seventh aspect, in some implementations of the seventh aspect, the first bitmap is associated with an index indicated by the network device.

[0072] In the eighth aspect, a communication device is provided, comprising: a processing unit, used to obtain an initial cyclic shift value of the i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first cyclic shift offset set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a maximum cyclic shift value; a transceiver unit, used to send SRS according to the initial cyclic shift value and the first cyclic offset of the i-th port in the first cyclic shift offset set.

[0073] In combination with the eighth aspect, in certain implementations of the eighth aspect, the length of the first bitmap is equal to the maximum cyclic shift value.

[0074] In combination with the eighth aspect, in certain implementations of the eighth aspect, the first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

[0075] In combination with the eighth aspect, in certain implementations of the eighth aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value -1.

[0076] In combination with the eighth aspect, in certain implementations of the eighth aspect, the first bitmap is associated with the third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

[0077] In combination with the eighth aspect, in certain implementations of the eighth aspect, the Q value is associated with at least one of the following: the number of ports occupied by the SRS resources with the same comb teeth, the number of ports occupied by the SRS resources with different cyclic shifts, or the maximum cyclic shift value.

[0078] In combination with the eighth aspect, in certain implementations of the eighth aspect, the first bitmap is associated with an index indicated by the network device.

[0079] In the ninth aspect, a communication device is provided, comprising: a processing unit, used to obtain an initial comb tooth offset value of the i-th port among N ports corresponding to an SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first comb tooth offset bias set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a comb tooth degree; a transceiver unit, used to send an SRS according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset bias set.

[0080] In combination with the ninth aspect, in certain implementations of the ninth aspect, the length of the first bitmap is equal to the comb tooth degree.

[0081] In combination with the ninth aspect, in certain implementations of the ninth aspect, the first comb tooth offset bias set is an index of bit 1 or bit 0 in the first bitmap.

[0082] In combination with the ninth aspect, in certain implementations of the ninth aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree - 1.

[0083] In combination with the ninth aspect, in certain implementations of the ninth aspect, the first bitmap is associated with the third bitmap and a value of Q, and the comb-teeth degree is equal to Q times the length of the third bitmap.

[0084] In combination with the ninth aspect, in certain implementations of the ninth aspect, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by the SRS resources, or the comb tooth degree.

[0085] In combination with the ninth aspect, in certain implementations of the ninth aspect, the first bitmap is associated with an index indicated by the network device.

[0086] In the tenth aspect, a communication device is provided, which includes: a processing unit, used to obtain an initial cyclic shift value of the i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first cyclic shift offset set is associated with a third bitmap and a Q value, and the length of the third bitmap is less than or equal to the maximum cyclic shift value; a transceiver unit, used to send SRS according to the initial cyclic shift value and the first cyclic offset of the i-th port in the first cyclic shift offset set.

[0087] In combination with the tenth aspect, in certain implementations of the tenth aspect, the Q value is associated with at least one of the following: the number of ports occupied by the SRS resources with the same comb teeth, the number of ports occupied by the SRS resources with different cyclic shifts, or the maximum cyclic shift value.

[0088] In the eleventh aspect, a communication device is provided, which includes: a processing unit, used to obtain an initial comb tooth offset value of the i-th port among N ports corresponding to SRS resources and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first comb tooth offset bias set is associated with a third bitmap and a value of Q, and the length of the third bitmap is less than or equal to the comb tooth degree; a transceiver unit, used to send SRS according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset bias set.

[0089] In combination with the eleventh aspect, in certain implementations of the eleventh aspect, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by the SRS resources, or the comb tooth degree.

[0090] In the twelfth aspect, a communication device is provided, including: a processing unit, used to obtain the port number corresponding to the i-th port among the N ports corresponding to the detection reference signal SRS resource, wherein N is a positive integer, i is less than or equal to N, and the N ports are divided into two groups and mapped to different OFDM symbols respectively; determine the cyclic shift value corresponding to the i-th port according to the cyclic shift reference index and the port number corresponding to the i-th port; determine the comb tooth corresponding to the i-th port according to the comb tooth offset value and the port number corresponding to the i-th port, wherein the cyclic shift value corresponding to the i-th port is different from the cyclic shift value corresponding to the i+4th port.

[0091] In conjunction with the twelfth aspect, in some implementations of the twelfth aspect, the cyclic shift value corresponding to the i-th port is determined according to the following formula:

[0092]

[0093] In conjunction with the twelfth aspect, in some implementations of the twelfth aspect, the cyclic shift value corresponding to the i-th port is determined according to the following formula:

[0094]

[0095] In conjunction with the twelfth aspect, in some implementations of the twelfth aspect, the cyclic shift value corresponding to the i-th port is determined according to the following formula:

[0096]

[0097] In conjunction with the twelfth aspect, in some implementations of the twelfth aspect, the comb teeth corresponding to the i-th port are determined according to the following formula:

[0098]

[0099] In combination with the twelfth aspect, in certain implementations of the twelfth aspect, N=8, wherein port 0, port 4, and port 5 occupy a first OFDM symbol, and port 2, port 3, port 6, and port 7 occupy a second symbol, and the first symbol is different from the second symbol.

[0100] In the thirteenth aspect, a communication device is provided, including: a processing unit, used to configure the initial cyclic shift value of the i-th port among N ports corresponding to SRS resources and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first cyclic shift offset set is associated with a first bitmap, and the length of the first bitmap is less than or equal to the maximum cyclic shift value; a transceiver unit, used to send first indication information to a terminal device, the first indication information including: the initial cyclic shift value and the first cyclic shift offset set.

[0101] In combination with the thirteenth aspect, in certain implementations of the thirteenth aspect, the length of the first bitmap is equal to the maximum cyclic shift value.

[0102] In combination with the thirteenth aspect, in certain implementations of the thirteenth aspect, the first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

[0103] In combination with the thirteenth aspect, in certain implementations of the thirteenth aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value -1.

[0104] In combination with the thirteenth aspect, in certain implementations of the thirteenth aspect, the first bitmap is associated with the third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

[0105] In combination with the thirteenth aspect, in certain implementations of the thirteenth aspect, the value of Q is associated with at least one of the following: the number of ports occupied by the SRS resources with the same comb teeth, the number of ports occupied by the SRS resources with different cyclic shifts, or the maximum cyclic shift value.

[0106] In the fourteenth aspect, a communication device is provided, including: a processing unit, used to configure an initial comb tooth offset value of the i-th port among N ports corresponding to SRS resources and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, and the first comb tooth offset bias set is associated with a first bitmap, and the length of the first bitmap is less than or equal to the comb tooth degree; a transceiver unit, used to send second indication information to a terminal device, the second indication information including: the initial comb tooth offset value and the first comb tooth offset bias set.

[0107] In combination with the fourteenth aspect, in certain implementations of the fourteenth aspect, the length of the first bitmap is equal to the comb tooth degree.

[0108] In combination with the fourteenth aspect, in certain implementations of the fourteenth aspect, the first comb tooth offset bias set is an index of bit 1 or bit 0 in the first bitmap.

[0109] In combination with the fourteenth aspect, in certain implementations of the fourteenth aspect, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree - 1.

[0110] In combination with the fourteenth aspect, in certain implementations of the fourteenth aspect, the first bitmap is associated with the third bitmap and a value of Q, and the comb-teeth degree is equal to Q times the length of the third bitmap.

[0111] In combination with the fourteenth aspect, in certain implementations of the fourteenth aspect, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by the SRS resources, or the comb tooth degree.

[0112] In combination with the fourteenth aspect, in certain implementations of the fourteenth aspect, the first bitmap is associated with an index indicated by the network device.

[0113] In a fifteenth aspect, a communication device is provided, which includes a processor, wherein the processor is used to couple with a memory, read and execute instructions and / or program codes in the memory to execute a method of any one of the implementation modes in the first to fifth aspects.

[0114] In the sixteenth aspect, a communication device is provided, which includes a processor, wherein the processor is used to couple with a memory, read and execute instructions and / or program codes in the memory to execute the method in the sixth aspect or the seventh aspect.

[0115] In the seventeenth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a program code. When the computer program code runs on a computer, the computer executes a method in any one of the implementation modes of the first to seventh aspects above.

[0116] In an eighteenth aspect, a chip is provided, the chip comprising a circuit, the circuit being used to execute the method in any one of the implementations of the first to seventh aspects above.

[0117] In the nineteenth aspect, a computer program product is provided, which includes a computer program. When the computer program is run, the computer executes the method in any one of the implementation modes of the first to seventh aspects above.

[0118] In the twentieth aspect, a terminal device is provided, comprising: an apparatus in any one of the implementation methods of the eighth to twelfth aspects mentioned above.

[0119] In the twenty-first aspect, a network device is provided, comprising: an apparatus in any one of the implementation methods of the above-mentioned thirteenth aspect or fourteenth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0120] Figure 1 It is a schematic diagram of the subcarriers in the frequency domain occupied by the comb teeth at different comb tooth degrees provided in an embodiment of the present application;

[0121] Figure 2 It is a schematic diagram of the frequency domain resources occupied by SRS frequency hopping provided in an embodiment of the present application;

[0122] Figure 3 It is a schematic diagram of SRS transmission in a CJT scenario provided in an embodiment of the present application;

[0123] Figure 4 It is a schematic diagram of the SRS1 and SRS2 channel estimation results provided by an embodiment of the present application in the delay domain response, and the delay difference causing SRS interference;

[0124] Figure 5 It is a schematic diagram of the distribution of the channel estimation responses corresponding to the SRS4 ports provided in the embodiment of the present application in the delay domain;

[0125] Figure 6 is a schematic diagram of SRS resource mapping provided in an embodiment of the present application;

[0126] Figure 7 It is a communication method provided by an embodiment of the present application;

[0127] Figure 8 It is a communication method provided by an embodiment of the present application;

[0128] Fig. 9 It is a resource distribution diagram occupied by a target UE and a traditional UE provided in an embodiment of the present application;

[0129] Fig.10 It is a distribution diagram of resources occupied by a target UE and a traditional UE in different situations provided by an embodiment of the present application;

[0130] Fig.11 This is another resource distribution diagram occupied by a target UE and a traditional UE provided in an embodiment of the present application;

[0131] Fig.12 This is another resource distribution diagram occupied by a target UE and a traditional UE in different situations provided by an embodiment of the present application;

[0132] Fig.13 This is a schematic diagram of CSs to which 8 port pairs are allocated provided in an embodiment of the present application;

[0133] Fig.14 is another schematic diagram of CSs in which eight port pairs are allocated provided in an embodiment of the present application;

[0134] Fig.15 It is another communication method provided by the embodiment of the present application;

[0135] Fig.16 A communication device provided in an embodiment of the present application;

[0136] Fig.17 It is another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0137] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0138] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, TDD, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, future fifth generation (5G) system or new radio (NR), etc.

[0139] The terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile communication network (PLMN), etc., and the embodiments of the present application are not limited to this.

[0140] The network device in the embodiment of the present application can be a device for communicating with a terminal device. The network device can be a base station (base transceiver station, BTS) in a global system of mobile communication (GSM) system or code division multiple access (CDMA), or a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolutionary base station (eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiments of the present application are not limited.

[0141] In order to facilitate understanding of the embodiments of the present application, first, a brief introduction is given to the concepts and technologies involved in the embodiments of the application.

[0142] (1) SRS: SRS is an uplink reference signal sent by a terminal device to a network device. After receiving the SRS signal, the network device can obtain the UL channel from the terminal device to the network device based on the SRS signal. If there is channel reciprocity between the uplink and downlink channels (TDD system), the downlink channel information from the network device to the terminal device can also be obtained through the uplink channel measurement based on SRS according to the channel reciprocity. After the network device obtains the downlink channel information corresponding to the terminal device, it can perform data transmission resource scheduling or precoding processing on the terminal device according to the channel information.

[0143] (2) Port: It can also be called SRS port or antenna port. SRS port is used to carry SRS signal. Each port corresponds to one SRS signal. Different ports can be multiplexed by code division, frequency division, time division or space division. In one implementation, an SRS resource may include SRS ports, each SRS port corresponds to the configured time-frequency code resources. Usually, each SRS port occupies different time-frequency code domain resources to reduce mutual interference. Each SRS port corresponds to the physical antenna or virtual antenna of the terminal device.

[0144] (3) Cyclic shift: Different SRS ports can be sent on the same time-frequency resources through code division multiplexing. By multiplying the SRS sequence by the phase shift factor in the frequency domain, an equivalent time domain response can be achieved to produce a cyclic shift offset. With the characteristic that the maximum delay of the channel is often limited, the code division orthogonality of different SRS ports can be achieved through appropriate cyclic shift offset. The appropriate cyclic shift can be called CS. Specifically, the cyclic shift acts on the transmission sequence. Due to the characteristics of the transmission sequence, applying a cyclic shift to the transmission sequence is equivalent to offsetting the signal in the delay domain. When different signals have different offsets, the multiplexing effect is achieved.

[0145] (4) Comb: For different SRS ports, they can be sent on different frequency domain subcarriers through frequency division multiplexing. Combs divide frequency domain subcarriers into multiple groups. The frequency domain interval between two adjacent subcarriers in each group is a fixed value. CO is a way to distinguish different subcarriers in the frequency domain. Different comb offset values ​​represent different subcarrier groups or subcarrier positions in the frequency domain. SRS resources achieve frequency division multiplexing between ports by assigning different comb offset values ​​to different ports. Figure 1 For example, the comb teeth are part of the subcarriers extracted at equal intervals in the frequency domain, where the extraction interval is called the comb tooth degree K TC , which is pre-configured by RRC and usually takes values ​​of 2, 4, or 8. TC When the value is 2, the frequency domain can be divided into two comb teeth for frequency division multiplexing of two groups of SRS ports. In the figure below, one grid represents one subcarrier, and the shaded grid is an example of the subcarrier position occupied by the comb teeth corresponding to the comb tooth offset value of 0 under different comb tooth degrees.

[0146] (5) SRS measurement bandwidth and frequency hopping bandwidth: The SRS measurement bandwidth is the total bandwidth for network devices to measure channels through SRS. At each SRS transmission time, the SRS resource can send signals on the entire measurement bandwidth or only on a portion of the measurement bandwidth. When the signal is sent only on a portion of the measurement bandwidth, it is called SRS frequency hopping transmission, and the length of the partial bandwidth sent each time is the frequency hopping bandwidth. Through multiple SRS transmission times, the network device can obtain the channel corresponding to the entire SRS measurement bandwidth. Figure 2 For example, a grid in the figure represents a subband in the frequency domain (for example, it can be an RB), the measurement bandwidth of SRS is 16RB, the frequency hopping bandwidth of SRS is 4RB, and the measurement bandwidth can be measured by sending SRS four times.

[0147] The technical problem to be solved by the present application and the technical solution adopted are introduced below in conjunction with the accompanying drawings.

[0148] SRS is a key reference signal for obtaining channel state information. Especially for TDD systems, by utilizing the reciprocity of uplink and downlink channels, uplink and downlink channel information can be obtained through SRS. In actual systems, considering the overhead of reference signals and channel estimation performance, the number of available orthogonal SRS resources is often limited. However, there are many cells in the network, and the terminal devices in each cell will send SRS for channel measurement, which will cause limited orthogonal SRS resources to be reused by multiple cells. For example, under an SRS resource allocation strategy, the terminal devices in each cell will be allocated orthogonal SRS resources, while different cells will allocate non-orthogonal SRS resources, which will cause SRS interference between cells. At present, the SRS interference problem is one of the key factors restricting system performance.

[0149] Coherent joint transmission (CJT) of multiple sites (or multiple transmission reception points (TRP)) is a key technology to further improve spatial freedom and enhance system transmission performance. Figure 3 As shown in the figure, taking two TRPs for CJT transmission as an example, TRP1 and TRP2 jointly serve UE1 and UE2, and TRP1 and TRP2 need to obtain the channel information between UE1 and UE2 and TRP1 and TRP2 through SRS. By configuring an SRS resource SRS1 and SRS2 for UE1 and UE2 respectively, TRP1 and TRP2 can receive SRS1 and SRS2 sent by UE1 and UE2, and obtain their respective channels based on SRS1 and SRS2. Under different SRS resource allocation methods, due to the "far-near effect" between UE1 / UE2 and TRP1 and TRP2, more serious SRS interference problems will be caused.

[0150] The following uses SRS1 and SRS2 as non-orthogonal or orthogonal SRS resources as examples to illustrate the SRS interference problem.

[0151] (1) SRS1 and SRS2 are non-orthogonal SRS resources.

[0152] In a possible implementation, TRP1 and TRP2 configure SRS resources for service users respectively, where SRS1 and SRS2 are non-orthogonal SRS resources. For example, SRS1 and SRS2 occupy the same time-frequency resources and use non-orthogonal SRS sequences (for example, different base sequences). Figure 3In the example, TRP2 is a cooperative station of UE1 and a service station of UE2. Therefore, the distance between TRP2 and UE1 is greater than the distance between TRP2 and UE2. When TRP2 receives SRS1 sent by UE1, it will be strongly interfered by SRS2 sent by UE2. Considering the near-far effect, the interference power of SRS2 on SRS1 is even higher than its own signal power.

[0153] (2) SRS1 and SRS2 are orthogonal SRS resources.

[0154] In one possible implementation, TRP1 and TRP2 perform joint orthogonal SRS resource allocation to configure mutually orthogonal SRS resources for serving users UE1 and UE2. Usually, SRS1 and SRS2 are configured with the same base sequence and occupy different time domain / frequency domain / code domain resources to maintain orthogonality. However, due to the different distances between UE1 and UE2 and different TPRs, the delays of the SRS signals sent by the UE to different TRPs are also different. Figure 3 , that is, τ 1,1 <τ 1,2 , τ 2,1 >τ 2,2 , where τ i,j represents the propagation delay from UE i to TRP j. SRS1 and SRS2 can be orthogonalized by code division multiplexing, for example, by using different SRS cyclic shift values ​​to ensure code domain orthogonality.

[0155] Assume that the maximum number of SRS CS configured for UE1 and UE2 is 12, SRS1 occupies CS 0 / 3 / 6 / 9, and SRS2 occupies CS 1 / 4 / 7 / 10. In the absence of delay difference, SRS1 and SRS2 occupy different delay intervals in the delay domain, so code division orthogonality can be guaranteed. Figure 4 As shown, when there is a delay difference, the propagation delay between TRP2 and UE1 is greater than the propagation delay between TRP2 and UE2. Assuming that TRP2 and UE2 are time-aligned, the channel result measured by SRS1 will be offset in the delay domain, thereby interfering with SRS2, thereby affecting the channel measurement accuracy.

[0156] The following describes the method of SRS sequence and time-frequency resource mapping.

[0157] Currently, the network device can configure SRS resources for the terminal device. Based on the NR protocol, the number of ports in an SRS resource configured by the network device for the terminal device can be set by the parameter Certainly, this parameter can be configured as 1, 2, 4 or 8. Multiple ports in an SRS resource correspond to different time-frequency resources or sequences to ensure orthogonality between different ports.

[0158] A port p in the SRS resource i The corresponding SRS sequence can be expressed as:

[0159]

[0160] in, is the SRS base sequence, which can usually be a ZC sequence. The specific generation method is determined by the sequence length. v and u are the numbers of a base sequence in the SRS base sequence group. For different SRS sequence lengths, there are at least 30 base sequences that can be used. Each group corresponds to a group number u (u = 0, 1, 2, ..., 29). Based on different SRS sequence lengths, each group further contains 1 or 2 base sequences, corresponding to sequence numbers v (v = 0, 1). δ = log2(K TC ), is the length of the SRS sequence, which is calculated as in is the number of subcarriers in an RB, m is the number of RBs occupied by SRS in one frequency hopping transmission, and n is the number of sequence elements.

[0161] It can be concluded that one SRS port corresponds to a cyclic shift (CS) in the code domain, represented by parameter α. For the SRS frequency domain sequence, it is an additional phase offset acting on the base sequence (by multiplying a signal in the frequency domain by e jαn ), which is equivalent to cyclically shifting the signal by a corresponding delay in the delay domain. Specifically, for a port p in an SRS resource i , CSα i Defined as:

[0162]

[0163]

[0164] Among them, the parameters Indicates the reference position (or starting position) of the CS occupied by multiple ports corresponding to the SRS resources allocated to the terminal device. This parameter can be configured by the parameter transmissionComb in the radio resource control (RRC). Parameter Indicates the maximum value of the supported CS, or the maximum number of CS that can be configured. Can be with the supported comb tooth degree K TC (As mentioned above, the interval between two consecutive REs in the same comb tooth) is jointly configured. and K TCThe corresponding relationship is shown in Table 1 below.

[0165] Table 1

[0166]

[0167] For example, suppose the port number corresponding to SRS resource 1 configured by the network device for the terminal device is Comb tooth degree K TC =4, then according to Table 1, the maximum CS When CS starts When , the estimated channel responses corresponding to the four ports corresponding to SRS resource 1 are distributed in the delay domain as follows: Figure 5 shown.

[0168] like Figure 5 As shown in the figure, in this configuration, the four ports of SRS1 occupy CS 0, 2, 4, and 6 respectively. The cluster of vertical lines in the box represents the delay domain channel response corresponding to a port. In one implementation, when allocating CS of an SRS resource, the CS corresponding to the SRS resource port can be The length is divided evenly according to the largest interval possible to ensure that the interference between multiple ports of an SRS resource is minimized.

[0169] In addition, an SRS port p i Corresponding to a frequency domain comb offset (comb offset, CO), the parameter Indicates that the SRS port p i The starting frequency domain position of It is determined according to the following formula:

[0170]

[0171]

[0172]

[0173] in It can be configured through high-level signaling transmissionComb. Indicates the configured frequency domain RB offset, represents the frequency domain subband offset. Based on formula (2), it can be seen that for different port number values ​​and Multiple ports of an SRS resource may be distributed on the same comb tooth or on two comb teeth.

[0174] The following describes a method for randomizing SRS interference.

[0175] As mentioned above, the SRS interference problem is one of the key factors affecting the performance of the communication system. In order to reduce the impact of SRS interference on the system and avoid the problem of poor channel estimation quality caused by continuous strong interference to the target SRS, SRS interference randomization is an effective means.

[0176] SRS CS hopping is an effective interference randomization method. At different SRS transmission times, the cyclic shift offset value CS corresponding to the SRS port of the target SRS resource can change randomly, thereby avoiding the continuous influence of strong interference. When SRS CS hopping is turned on, based on the above formula (1), the SRS port p i Corresponding CSα i It can be expressed as:

[0177] or

[0178] in, Indicates the offset of CS, at each SRS transmission time, Can be randomly selected from Randomly select a value from .

[0179] SRS CO hopping is another interference randomization method. At different SRS transmission times, the comb offset value CO corresponding to the SRS port of the target SRS resource can be randomly changed to avoid the continuous influence of strong interference. When SRS CO hopping is turned on, based on the above formula (2), the SRS port p i The corresponding frequency domain starting position can be expressed as:

[0180]

[0181]

[0182] Among them, k COH Indicates the offset of CO. At each SRS transmission time, k COH can be randomly selected from {0,1,…,K TC -1} and randomly selects a value.

[0183] However, for the current SRS configuration method and time-frequency resource mapping method, as described above, when multiple stations do not perform joint orthogonal SRS resource allocation, the SRSs of different cells are not orthogonal to each other, so SRS interference between cells will occur, especially for cell edge users, the SRS interference is large and has a serious impact on channel measurement performance. When multiple stations perform coordinated transmission and multiple stations perform joint orthogonal SRS resource allocation, the distance between the UE and multiple transmitting stations varies, resulting in propagation delay differences, which in turn causes interference between SRSs.

[0184] Although, when SRS CS hopping or comb offset hopping is turned on, the above SRS interference problem can be solved to a certain extent. However, as shown in equations (3) and (4), when CS hopping and comb offset hopping are turned on, in order to avoid more serious interference problems caused by random hopping, it is required that multiple ports corresponding to the target SRS resources occupy the SRS resources of the same comb offset or CS to ensure that no collision occurs after hopping is turned on. However, the frequency domain resource position and code domain CS occupied by each SRS transmission are randomly jumping. In order to avoid collision, a feasible way is to configure all SRS resources of the same comb offset or CS occupied by multiple ports corresponding to the target SRS resources with the same hopping random sequence. For example, it is necessary to configure the above terminal devices with exactly the same random initialization ID to ensure that the CS offset or CO offset calculated by CS hopping or CO hopping at each SRS transmission is exactly the same. However, this configuration is difficult to achieve the benefits of interference randomization in some scenarios.

[0185] For example, when there are legacy UEs, the legacy UEs do not have the capability of SRS CS hopping or comboffset hopping. Figure 6 As shown, it is assumed that the SRS resources allocated to the target UE include 4 SRS ports, which occupy 2 COs and 4 CSs respectively. Figure 6 In the gray square, CS0 and CS6 corresponding to CO0 are occupied, and CS3 and CS9 corresponding to CO2 are occupied). The SRS resources allocated to the traditional UE include 2 SRS ports, occupying CS3 and CS9 corresponding to CO3 ( Figure 6 medium black square).

[0186] Taking CO hopping as an example, assuming that the target UE turns on CO hopping, if the target UE can randomly send on CO 0-3 each time it sends SRS, when sending on CO3, it will cause a collision with the SRS resource sending corresponding to the traditional UE, thereby causing serious interference problems. Therefore, the target UE cannot perform CO hopping. In addition, since the SRS of the target UE occupies 4 CSs, the target UE cannot perform CO hopping, which will further cause the SRS resources of other terminal devices occupying CS 0 / 3 / 6 / 9 to be unable to perform CO hopping (otherwise it will also cause a collision with the SRS of the target terminal device).

[0187] Taking CS hopping as an example, suppose there is another traditional UE, and the SRS resources allocated to it include 2 SRS ports occupying CS3 and CS9 of CO0 (light blue squares in the figure). If the target UE turns on CS hopping, each SRS transmission can be randomly sent on CS 0~11. When sending on CS 3 or CS 6, it will cause a collision with the SRS resource transmission corresponding to the traditional UE, thereby causing serious interference problems. Therefore, the target UE cannot perform CS hopping. In addition, since the SRS of the target UE occupies 2 Combs, namely Comb0 / 2, the target UE cannot perform CS hopping, which will further cause the SRS resources of other terminal devices occupying Comb0 / 2 to be unable to perform CS hopping (otherwise it will also cause a collision with the SRS of the target terminal device).

[0188] Therefore, when there are traditional UEs in the communication system, the freedom of the target UE to perform hopping will be greatly reduced, resulting in that many SRS resources cannot be randomized.

[0189] The embodiments of the present application provide a communication method and a communication device, which can improve the freedom of a target UE to jump when a traditional UE exists in a communication system, thereby avoiding the situation where an SRS sent by the target UE is interfered with and causes poor channel estimation quality.

[0190] Figure 7 It is a communication method provided by an embodiment of the present application. Method 700 may include steps S701 to S703.

[0191] S701, a terminal device receives first indication information sent by a network device.

[0192] The first indication information may include: at least one of a starting cyclic shift value corresponding to the SRS resource, a first bitmap, a second bitmap, a third bitmap or a bitmap index.

[0193] The starting cyclic shift value corresponding to the SRS resource may refer to the protocol defined parameter.

[0194] Optionally, before step S701, the network device may configure an initial cyclic shift value of the i-th port among the N ports corresponding to the RS resources and a first cyclic shift offset set corresponding to the N ports.

[0195] S702: The terminal device obtains, according to the first indication information, an initial cyclic shift value of the i-th port among the N ports corresponding to the SRS resource and a first cyclic shift offset set corresponding to the N ports.

[0196] Wherein, N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with the first bitmap, and the length of the first bitmap is less than or equal to the maximum cyclic shift value.

[0197] Alternatively, the first cyclic shift offset set may also be associated with the third bitmap and the value of Q

[0198] Optionally, in the first cyclic shift offset sets corresponding to the N ports, the first cyclic shift offset sets corresponding to each port may be the same or different.

[0199] Optionally, the first cyclic shift offset set is associated with the first bitmap, which can be understood as: the first cyclic shift offset set is determined based on the first bitmap.

[0200] Optionally, the first cyclic offset may be any cyclic offset in the first cyclic shift offset set.

[0201] In one embodiment, the length of the first bitmap is equal to the maximum cyclic shift value.

[0202] Optionally, the network device may indicate the maximum cyclic shift value to the terminal device, and the terminal device may determine the first cyclic shift offset set based on the first bitmap whose length is equal to the maximum cyclic shift value.

[0203] In one embodiment, the first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

[0204] Optionally, the index with bit position 1 in the first bitmap can be understood as an available CS bias value, and the index with bit position 0 can be understood as an unavailable CS bias value. Alternatively, the index with bit position 0 can be understood as an available CS bias value, and the index with bit position 1 can be understood as an unavailable CS bias value.

[0205] In one embodiment, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value-1.

[0206] Optionally, when the index with bit position 1 represents an available CS bias value, the highest bit in the first map is 1 by default, or when the index with bit position 0 represents an available CS bias value, the highest bit in the first map is 0 by default.

[0207] For example, when the index with the bit position of 1 represents an available CS bias value, and the second bitmap is 100, the first bitmap is 1100.

[0208] For another example, when the index with bit position 0 represents an available CS bias value, and the second bitmap is 100, the first bitmap is 0100.

[0209] Optionally, the highest bit of the first bitmap may be the leftmost bit or the rightmost bit in the first bitmap, that is, in the above example, when the second bitmap is 100, the highest bit may be the leftmost 1 or the rightmost 0.

[0210] In one embodiment, the first bitmap is associated with the third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

[0211] Optionally, the first bitmap is associated with the third bitmap and the value of Q, which can be understood as follows: the first bitmap is determined based on the third bitmap and the value of Q. The specific determination method of the first bitmap is as follows: Fig. 9 and Fig.10 The corresponding embodiments are described in detail.

[0212] Optionally, the Q value is associated with at least one of the following: the number of ports of the same comb teeth occupied by SRS resources, the number of ports of different cyclic shifts occupied by SRS resources, or a maximum cyclic shift value.

[0213] In one embodiment, the first bitmap is associated with an index indicated by the network device.

[0214] Optionally, the first bitmap is associated with the index indicated by the network device, which can be understood as the first bitmap is determined based on the index indicated by the network device. The specific determination method of the first bitmap is as follows: Fig. 9 and Fig.10 The corresponding embodiments are described in detail.

[0215] S703: The terminal device sends an SRS according to the initial cyclic shift value and the first cyclic offset of the i-th port in the first cyclic shift offset set.

[0216] In an embodiment of the present application, an SRS can be sent according to an initial cyclic shift value of the i-th port and a first cyclic offset of the i-th port in a first cyclic shift offset set. In this way, when there are traditional UEs in the communication system, the freedom of the target UE to perform cyclic shift hopping can be improved, thereby avoiding the situation where the SRS sent by the target UE is interfered with and causes poor channel estimation quality.

[0217] It should be understood that in the embodiments of the present application, the traditional UE may refer to a terminal device that does not have the CS hopping or CO hopping function, the target UE may refer to a terminal device that has the CS hopping or CO hopping function, and the communication method provided in the present application may be executed by the target UE, that is, the terminal device in method 700 may be the target UE.

[0218] Figure 8 It is another communication method provided by an embodiment of the present application. Method 800 may include steps S801 to S803.

[0219] S801, the terminal device receives second indication information sent by the network device.

[0220] The second indication information may include: at least one of a starting comb tooth offset value corresponding to the SRS resource, a first bitmap, a second bitmap, a third bitmap or a bitmap index.

[0221] The starting comb offset value corresponding to the SRS resource is defined by the protocol parameter.

[0222] Optionally, before step S801, the network device may configure an initial cyclic shift value of the i-th port among the N ports corresponding to the RS resources and a first cyclic shift offset set corresponding to the N ports.

[0223] S802, the terminal device obtains an initial comb tooth offset value of the i-th port among N ports corresponding to the SRS resource and a first comb tooth offset bias set corresponding to the N ports.

[0224] Wherein, N is a positive integer, i is less than or equal to N, the first comb tooth offset bias set is associated with the first bitmap, and the length of the first bitmap is less than or equal to the comb tooth degree.

[0225] Alternatively, the first comb offset bias set may be associated with the third bitmap and the value of Q

[0226] Optionally, in the first comb tooth offset bias sets corresponding to the N ports, the first comb tooth offset bias sets corresponding to each port may be the same or different.

[0227] Optionally, the first comb-tooth offset bias set is associated with the first bitmap, which can be understood as: the first comb-tooth offset bias set is determined based on the first bitmap.

[0228] Optionally, the first comb tooth bias may be any comb tooth bias of the first comb tooth offset bias set.

[0229] In one embodiment, the length of the first bitmap is equal to the comb length.

[0230] Optionally, the network device may indicate the comb-teeth degree to the terminal device, and the terminal device may determine the first comb-teeth offset bias set according to the first bitmap whose length is equal to the comb-teeth degree.

[0231] In one embodiment, the first comb-tooth offset bias set is an index of bit 1 or bit 0 in the first bitmap.

[0232] Optionally, the index with the bit position 1 in the first bitmap can be understood as an available CO bias value, and the index with the bit position 0 can be understood as an unavailable CO bias value. Alternatively, the index with the bit position 0 can be understood as an available CO bias value, and the index with the bit position 1 can be understood as an unavailable CO bias value.

[0233] In one embodiment, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree-1.

[0234] Optionally, when the index with bit position 1 represents an available CO bias value, the highest bit in the first map is 1 by default, or when the index with bit position 0 represents an available CO bias value, the highest bit in the first map is 0 by default.

[0235] Optionally, the highest bit of the first bitmap may be the leftmost bit or the rightmost bit in the first bitmap.

[0236] For example, when the index with the bit position of 1 represents an available CO bias value, and the second bitmap is 100, the first bitmap is 1100.

[0237] For another example, when the index with bit position 0 represents an available CO bias value, and the second bitmap is 100, the first bitmap is 0100.

[0238] Optionally, the highest bit of the first bitmap may be the leftmost bit or the rightmost bit in the first bitmap, that is, in the above example, when the second bitmap is 100, the highest bit may be the leftmost 1 or the rightmost 0.

[0239] In one embodiment, the first bitmap is associated with the third bitmap and a value of Q, and the combing degree is equal to Q times the length of the third bitmap.

[0240] Optionally, the first bitmap is associated with the third bitmap and the value of Q, which can be understood as follows: the first bitmap is determined based on the third bitmap and the value of Q. The specific determination method of the first bitmap is as follows: Fig.11 and Fig.12 The corresponding embodiments are described in detail.

[0241] Optionally, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by SRS resources, or the comb tooth degree.

[0242] In one embodiment, the first bitmap is associated with the index indicated by the network device, which can be understood as the first bitmap is determined based on the index indicated by the network device. The specific determination method of the first bitmap is as follows: Fig.11 and Fig.12 The corresponding embodiments are described in detail.

[0243] S803: The terminal device sends an SRS according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset set.

[0244] In an embodiment of the present application, SRS can be sent according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset offset set. In this way, when there are traditional UEs in the communication system, the freedom of the target UE to perform comb tooth offset jumping can be improved, thereby avoiding the situation where the SRS sent by the target UE is interfered with and causes poor channel estimation quality.

[0245] It should be understood that in the embodiments of the present application, the traditional UE may refer to a terminal device that does not have the CS hopping or CO hopping function, the target UE may refer to a terminal device that has the CS hopping or CO hopping function, and the communication method provided in the present application may be executed by the target UE, that is, the terminal device in method 800 may be the target UE.

[0246] Combine the following Fig. 9 and Fig.10 This section describes the specific contents of CS hopping on terminal devices.

[0247] The terminal device may receive indication information sent by the network device, which may be used to indicate the CS and CO corresponding to the allocated SRS resource, and the indication information may be the first indication information in method 700 or the second indication information in method 800. The SRS resource may include one or more SRS ports, each port corresponding to a CS value and a CO value. Based on the NR protocol, the network device indicates the combing degree K TC And according to the comb tooth degree K TC Determine the maximum number of CS And further indicates the CS value corresponding to the SRS resource And CO value Based on the above indication information, the CS and CO values ​​corresponding to the one or more ports corresponding to the SRS resource are calculated by the above formula (1) and formula (2).

[0248] For example, Fig. 9 As shown, it is assumed that the configuration information of the target SRS resource indicated by the network device to the target terminal device is K TC =4, This means that the SRS resource contains 4 ports (ports 0 to 3), which correspond to Fig. 9 CS 0, CS 3, CS 6 and CS 9 in . Assume that the configuration information of the target SRS resource indicated by the network device to the traditional terminal device is K TC =4, This means that the SRS resource contains 4 ports (ports 0 to 3), which correspond to Fig. 9 The target terminal device may refer to a terminal device with SRS CS hopping or CO hopping capability, and the legacy terminal device may refer to a terminal device without SRS CS hopping or CO hopping capability.

[0249] When CS hopping is enabled on the target terminal device, all ports of the target SRS resource may correspond one by one to a CS value area where CS hopping is possible or a CS value area where CS hopping is not possible. The number of CS values ​​contained in the CS value area where CS hopping is possible or the CS value area where CS hopping is not possible is called the area length L1 where CS hopping is possible or the area length L2 where CS hopping is not possible. It should be noted that the CS value area where CS hopping is possible or the CS value area where CS hopping is not possible are equivalent, that is, the union of the CS value set where CS hopping is possible and the CS value set where CS hopping is not possible is The following embodiments are all described by taking the CS value region where CS hopping can be performed as an example.

[0250] The set of CS hopping areas corresponding to each port of the target SRS resource can be a CS value preset by the protocol or indicated by the network device. The sum of each CS bias value in the CS bias value set is modulo The result set of .

[0251] Among them, the value set of CS bias is determined by a bitmap (the bitmap is The length of the bitmap refers to the number of bits contained in the bitmap). Specifically, the index of bit 1 (or bit 0) in the bitmap represents the available CS bias value, and the value set of the CS bias corresponding to the target SRS resource is the set of available CS biases indicated in the bitmap. or

[0252] in express The index of the nth element in m, express The number of elements whose median value is x. N is The length of The number of elements in, N is less than or equal to A positive integer; function It can be expressed as in express The nth element of . Function It can be expressed as or Can be replaced by symbols express The number of elements whose median value is x.

[0253] For example, if Then N = 12, At this time, the CS bias value set is CS = {0, 1, 3, 4, 6, 7, 9, 10}. If the network device is configured Then the area set for CShopping is CS = {0, 1, 3, 4, 6, 7, 9, 10}; if the network device is configured Then the set of regions that can perform CS hopping is CS = {3, 4, 6, 7, 9, 10, 0, 1}. may be the first bitmap in method 700, may be the initial cyclic shift value in method 700, It may be the maximum cyclic shift value in method 700 , and the value set of CS offset may be the first cyclic shift offset set in method 700 .

[0254] In one possible implementation, each port of the target SRS resource can correspond to different

[0255] A possible implementation method is that each port of the target SRS resource corresponds to Preset to the initial cyclic shift of the port

[0256] In a possible implementation manner, each port of the target SRS resource corresponds to the same bitmap.

[0257] The network device may configure a CS offset value set for the target SRS resource, which includes at least two optional CS offset values, one of which is 0. The following configuration methods may be included:

[0258] Method 1: The network device sends an indication message, the indication message indicates a length of The bitmap.

[0259] For example, Fig.10 As shown, if the network device configuration The target terminal device corresponds to the SRS resource ports 0, 1, 2, and 3. They are 0, 3, 6, and 9, respectively. Then the value set of CS bias is CS={0,1,3,4,6,7,9,10}, and the set of areas corresponding to each port that can perform CS hopping is CS={0,1,3,4,6,7,9,10}, CS={3,4,6,7,9,10,0,1}, CS={6,7,9,10,0,1,3,4}, and CS={9,10,0,1,3,4,6,7}.

[0260] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0261]

[0262] in,

[0263] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0264] S(l)=l, And K = 1

[0265] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0266] S(l)=l, And K is a value or a preset value of a high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0267] When 'cyclicShiftHoppingSubset' is configured:

[0268] And K=1.

[0269] It can be calculated by the following formula:

[0270]

[0271] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0272] Among them, f(n SRS) is a random value generated by a random sequence generation formula. For example, f(n SRS ) can be calculated by the following formula:

[0273]

[0274] or,

[0275] or,

[0276] or,

[0277] or,

[0278] Where M and N are positive integers, and the random sequence c(i) is generated according to the following formula:

[0279] c(n)=(x1(n+N C )+x2(n+N C ))mod2

[0280] x1(n+31)=(x1(n+3)+x1(n))mod2

[0281] x2(n+31)=(x2(n+3)+x2(n+2)+x2(n+1)+x2(n))mod2

[0282] Among them, N C = 1600, the first m sequence x1(n) is initialized to x1(0) = 0, n = 1, 2 ... 30. The second m sequence x2(n) is initialized Here the parameter c init Can be configured independently for different terminal devices. init Can be based on the initialization ID of the configuration, such as or c init is the cell ID, or 'cyclicShiftHoppingSubset' and 'cyclicShiftHoppingFinerGranularity' are parameters configured for the network device, indicating whether subset CS hopping and fine-granularity CS hopping are enabled, respectively.

[0283] Method 2: The network device sends an indication message, the indication message indicates a length of The bitmap is recorded as in accordance with Sure By Add a 1 to the leftmost side to get For example, if but is 1011.

[0284] In this implementation, when the index of element 1 in the bitmap represents the available CS bias, The highest bit must be 1 (the left side of the bitmap is the high bit and the right side is the low bit), or in other words The 0th bit of must be 1 (the leftmost bit of the bitmap is the first bit, for example, if bitmap = 10, then the 0th bit is 1 and the 1st bit is 0). Or, when the index of element 0 in the bitmap represents the available CS bias, The highest bit of must be 0, or The 0th bit of must be 0.

[0285] For example, Fig.10 As shown, if the network device configuration The target terminal device corresponds to the SRS resource ports 0, 1, 2, and 3. They are 0, 3, 6, and 9, respectively. By It can be determined Then the value set of CS bias is CS = {0,1,3,4,6,7,9,10}, and the area set corresponding to each port that can perform CS hopping is CS = {0,1,3,4,6,7,9,10}, CS = {3,4,6,7,9,10,0,1}, CS = {6,7,9,10,0,1,3,4}, CS = {9,10,0,1,3,4,6,7}. Among them, It may be the second bitmap in method 700 .

[0286] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0287]

[0288] in,

[0289] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0290] S(l)=l, And K = 1

[0291] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0292] S(l)=l, And K is a value or a preset value of a high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0293] When 'cyclicShiftHoppingSubset' is configured:

[0294] And K=1.

[0295] It can be calculated by the following formula:

[0296]

[0297] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0298] Method 3: The network device sends an indication message, the indication message indicates a length of The bitmap is recorded as in accordance with Sure

[0299] Among them, based on Sure There are two possible ways, one is By Perform Q-times period extension to obtain, for example, Q=2, but One is By Zero padding to Length is obtained, for example, Q = 2, but in, It may be the third bitmap in method 700 .

[0300] Q can be indicated, preset, or determined based on some rules. The following are several ways to determine Q based on rules:

[0301] Method 3.1: Q can be the number of ports on the same comb occupied by SRS resources Sure,

[0302] in,

[0303]

[0304] Take the cycle extension as an example, Fig.10 As shown, if the network device configuration According to the above formula, we can determine That is, Q = 4, then It can be determined If the target terminal device corresponds to the SRS resource port 0, 1, 2, 3 They are 0, 3, 6, and 9 respectively. The value set of CS bias is CS={0,1,3,4,6,7,9,10}. The set of areas corresponding to each port that can perform CShopping is CS={0,1,3,4,6,7,9,10}, CS={3,4,6,7,9,10,0,1}, CS={6,7,9,10,0,1,3,4}, and CS={9,10,0,1,3,4,6,7} respectively.

[0305] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0306]

[0307] in,

[0308] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0309] S(l)=l, And K = 1

[0310] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0311] S(l)=l, And K is the value or preset value of the high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device

[0312] When 'cyclicShiftHoppingSubset' is configured:

[0313] And K = 1

[0314] It can be calculated by the following formula:

[0315]

[0316] Among them, 'cyclicShiftHoppingSubset' and 'cyclicShiftHoppingFinerGranularity' are parameters configured for the network device.

[0317] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CS can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0318]

[0319] in,

[0320] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0321] S(l)=l, And K = 1

[0322] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0323] S(l)=l, And K is the value or preset value of the high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0324] When 'cyclicShiftHoppingSubset' is configured:

[0325] And K = 1

[0326] It can be calculated by the following formula:

[0327]

[0328] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0329] Method 3.2: Q can be the number of ports on the same comb occupied by SRS resources Sure,

[0330] in,

[0331]

[0332] Take the cycle extension as an example, Fig.10 As shown, if the network device configuration According to the above formula, we can determine That is, Q = 4, then It can be determined If the target terminal device SRS resource ports 0, 1, 2, 3 correspond to They are 0, 3, 6, and 9 respectively. The value set of CS bias is CS={0,1,3,4,6,7,9,10}. The set of areas corresponding to each port that can perform CShopping is CS={0,1,3,4,6,7,9,10}, CS={3,4,6,7,9,10,0,1}, CS={6,7,9,10,0,1,3,4}, and CS={9,10,0,1,3,4,6,7} respectively.

[0333] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0334]

[0335] in,

[0336] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0337] S(l)=l, And K = 1

[0338] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0339] S(l)=l, And K is the value or preset value of the high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device

[0340] When 'cyclicShiftHoppingSubset' is configured:

[0341] And K = 1

[0342] It can be calculated by the following formula:

[0343]

[0344] Among them, 'cyclicShiftHoppingSubset' and 'cyclicShiftHoppingFinerGranularity' are parameters configured for the network device.

[0345] Or, at the nth SRS The CS corresponding to port pi can be sent through and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0346]

[0347] in,

[0348] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0349] S(l)=l, And K = 1

[0350] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0351] S(l)=l, And K is a value or a preset value of a high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0352] When 'cyclicShiftHoppingSubset' is configured:

[0353] And K = 1

[0354] It can be calculated by the following formula:

[0355]

[0356] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0357] Method 3.3: Q can be used by SRS resources to occupy the number of ports of different CSs Sure,

[0358] in,

[0359]

[0360] Take the cycle extension as an example, Fig.10 As shown, if the network device configuration According to the above formula, we can determine That is, Q = 4, then It can be determined If the target terminal device corresponds to the SRS resource port 0, 1, 2, 3 They are 0, 3, 6, and 9 respectively. The value set of CS bias is CS={0,1,3,4,6,7,9,10}. The set of areas corresponding to each port that can perform CShopping is CS={0,1,3,4,6,7,9,10}, CS={3,4,6,7,9,10,0,1}, CS={6,7,9,10,0,1,3,4}, and CS={9,10,0,1,3,4,6,7} respectively.

[0361] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0362]

[0363] in,

[0364] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0365] S(l)=l, And K = 1

[0366] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0367] S(l)=l, And K is the value or preset value of the high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device

[0368] When 'cyclicShiftHoppingSubset' is configured:

[0369] And K = 1

[0370] It can be calculated by the following formula:

[0371]

[0372] Among them, 'cyclicShiftHoppingSubset' and 'cyclicShiftHoppingFinerGranularity' are parameters configured for the network device.

[0373] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CS can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0374]

[0375] in,

[0376] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0377] S(l)=l, And K = 1

[0378] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0379] S(l)=l, And K is a value or a preset value of a high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0380] When 'cyclicShiftHoppingSubset' is configured:

[0381] And K = 1

[0382] It can be calculated by the following formula:

[0383]

[0384] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0385] Method 3.4: Q can be used by SRS resources to occupy the number of ports of different CSs Sure,

[0386] in,

[0387]

[0388] Take the cycle extension as an example, Fig.10 As shown, if the network device configuration According to the above formula, we can determine That is, Q = 4, then It can be determined If the target terminal device corresponds to the SRS resource port 0, 1, 2, 3 They are 0, 3, 6, and 9 respectively. The value set of CS bias is CS={0,1,3,4,6,7,9,10}. The set of areas corresponding to each port that can perform CShopping is CS={0,1,3,4,6,7,9,10}, CS={3,4,6,7,9,10,0,1}, CS={6,7,9,10,0,1,3,4}, and CS={9,10,0,1,3,4,6,7} respectively.

[0389] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0390]

[0391] in,

[0392] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0393] S(l)=l, And K = 1

[0394] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0395] S(l)=l, And K is the value or preset value of the high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device

[0396] When 'cyclicShiftHoppingSubset' is configured:

[0397] And K = 1

[0398] It can be calculated by the following formula:

[0399]

[0400] Among them, 'cyclicShiftHoppingSubset' and 'cyclicShiftHoppingFinerGranularity' are parameters configured for the network device.

[0401] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CS can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0402]

[0403] in,

[0404] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0405] S(l)=l, And K = 1

[0406] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0407] S(l)=l, And K is a value or a preset value of a high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0408] When 'cyclicShiftHoppingSubset' is configured:

[0409] And K = 1

[0410] It can be calculated by the following formula:

[0411]

[0412] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0413] Method 3.5, Q can be obtained by Sure,

[0414] Take the cycle extension as an example, Fig.10 As shown, if the network device configuration According to the above formula, we can determine Q = 4, so It can be determined If the target terminal device corresponds to the SRS resource port 0, 1, 2, 3 They are 0, 3, 6, and 9 respectively. The value set of CS bias is CS = {0, 1, 3, 4, 6, 7, 9, 10}. The set of areas corresponding to each port that can perform CS hopping is CS = {0, 1, 3, 4, 6, 7, 9, 10}, CS = {3, 4, 6, 7, 9, 10, 0, 1}, CS = {6, 7, 9, 10, 0, 1, 3, 4}, and CS = {9, 10, 0, 1, 3, 4, 6, 7} respectively.

[0415] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0416]

[0417] in,

[0418] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0419] S(l)=l, And K = 1

[0420] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0421] S(l)=l, And K is the value or preset value of the high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device

[0422] When 'cyclicShiftHoppingSubset' is configured:

[0423] And K = 1

[0424] It can be calculated by the following formula:

[0425]

[0426] Among them, 'cyclicShiftHoppingSubset' and 'cyclicShiftHoppingFinerGranularity' are parameters configured for the network device.

[0427] Or, at the nthSRS SRS sending opportunity, port p i The corresponding CS can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0428]

[0429] in,

[0430] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0431] S(l)=l, And K = 1

[0432] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0433] S(l)=l, And K is a value or a preset value of a high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0434] When 'cyclicShiftHoppingSubset' is configured:

[0435] And K = 1

[0436] It can be calculated by the following formula:

[0437]

[0438] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0439] Mode 4: the bitmap is preset, and the network device indicates the index R of the bitmap to notify the bitmap, and the index R may be the index indicated by the network device in method 700 .

[0440] For example, the bitmap may be determined according to Table 2.

[0441] Table 2

[0442]

[0443] Take the cycle extension as an example, Fig.10 As shown, if the network device configuration Q = 4, then by looking up Table 2 we can know If the target terminal device corresponds to ports 0, 1, 2, 3 They are 0, 3, 6, and 9 respectively. The value set of CS bias is CS = {0, 1, 3, 4, 6, 7, 9, 10}. The set of areas corresponding to each port that can perform CS hopping is CS = {0, 1, 3, 4, 6, 7, 9, 10}, CS = {3, 4, 6, 7, 9, 10, 0, 1}, CS = {6, 7, 9, 10, 0, 1, 3, 4}, and CS = {9, 10, 0, 1, 3, 4, 6, 7} respectively.

[0444] In the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0445]

[0446] in,

[0447] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0448] S(l)=l, And K = 1

[0449] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0450] S(l)=l, And K is the value or preset value of the high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device

[0451] When 'cyclicShiftHoppingSubset' is configured:

[0452] And K = 1

[0453] It can be calculated by the following formula:

[0454]

[0455] Among them, 'cyclicShiftHoppingSubset' and 'cyclicShiftHoppingFinerGranularity' are parameters configured for the network device.

[0456] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CS can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0457]

[0458] in,

[0459] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is not configured:

[0460] S(l)=l, And K = 1

[0461] When 'cyclicShiftHoppingSubset' is not configured, and 'cyclicShiftHoppingFinerGranularity' is configured:

[0462] S(l)=l, And K is a value or a preset value of a high-level parameter 'cyclicShiftHoppingFinerGranularity' configured in the network device.

[0463] When 'cyclicShiftHoppingSubset' is configured:

[0464] And K = 1

[0465] It can be calculated by the following formula:

[0466]

[0467] in, The specific calculation method of may not be limited to the above formula. The specific calculation method of is not limited.

[0468] Combine the following Fig.11 and Fig.12 This section describes the details of CO hopping on terminal devices.

[0469] The terminal device receives the indication information sent by the network device, which is used to indicate the CS and CO corresponding to the allocated SRS resource. The indication information may be the first indication information in method 700 or the second indication information in method 800. The SRS resource includes one or more SRS ports, each port corresponding to a CS value and a CO value. Based on the NR protocol, the network device indicates the combing degree K TC And according to the comb tooth degree K TC Determine the maximum number of CS And further indicates the CS value corresponding to the SRS resource And CO value Based on the above indication information, the CS and CO values ​​corresponding to one or more ports corresponding to the SRS resource are calculated by formula (1) and formula (2).

[0470] like Fig.11 As shown, it is assumed that the configuration information of the target SRS resource indicated by the network device to the terminal device is K TC =8, This means that the SRS resource contains 4 ports (ports 0 to 3), port 0 and port 1 correspond to CS 0, port 2 and port 3 correspond to CS3, port 0 and port 2 correspond to CO0, and port 1 and port 3 correspond to CO4. Assume that the configuration information of the target SRS resource indicated by the network device to the terminal device is K TC =8, This means that the SRS resource includes 4 ports (ports 0 to 3), port 0 and port 1 correspond to CS 0, port 2 and port 3 correspond to CS 3, port 0 and port 2 correspond to CO 3, and port 1 and port 3 correspond to CO 7.

[0471] When CO hopping is turned on, all ports of the target SRS resource will correspond to a CO value area where CO hopping is possible or a CO value area where CO hopping is not possible. The number of CO values ​​contained in the CO value area where CO hopping is possible or the CO value area where CO hopping is not possible is called the length of the area where CO hopping is possible L3 or the length of the area where CO hopping is not possible l4. Specifically, the CO value area where CO hopping is possible or the CO value area where CO hopping is not possible are equal, that is, the union of the CO value set where CO hopping is possible and the CO value set where CO hopping is not possible is {0,1,…,K TC -1}. L3+L4=K TC The following embodiments are all introduced by taking the CO value range where CO hopping can be performed as an example.

[0472] The value set of CO bias is determined by the bitmap (the bitmap is The length of the bitmap refers to the number of bits contained in the bitmap). Specifically, the index of bit 1 (or bit 0) in the bitmap represents the available CO bias value, and the value set of the CS bias corresponding to the target SRS resource is the set of available CS biases indicated in the bitmap. or

[0473] in, express The index of the nth element in m, express The number of elements whose median value is x. N is The length of The number of elements in, N is less than or equal to K TC A positive integer; function It can be expressed as in express The nth element of . Function It can be expressed as or Can be replaced by symbols express The number of elements whose median value is x.

[0474] For example, if Then N = 8, At this time, the CO offset value set is CO = {0, 1, 2, 4, 5, 6}. If the network device is configured K TC = 8, then the area set that can perform CO hopping is CO = {0, 1, 2, 4, 5, 6}; if the network device is configured K TC =12, then the set of regions that can perform CO hopping is CO = {4,5,6,0,1,2}, where: may be the first bitmap in method 800, It may be the initial comb tooth offset value in method 800 , and the value set of CO bias may be the first comb tooth offset bias set in method 800 .

[0475] In a possible implementation, each port of the target SRS resource may correspond to a different

[0476] In a possible implementation, each port of the target SRS resource corresponds to Preset to the initial cyclic shift of the port

[0477] In a possible implementation, each port of the target SRS resource corresponds to the same bitmap.

[0478] The network device may configure a CS offset value set for the target SRS resource, which includes at least two optional CS offset values, one of which is 0. The following configuration methods may be included:

[0479] Method 1: The network device sends an indication message, and the indication message length is K TC The bitmap.

[0480] For example, Fig.12 As shown, if the network device configuration K TC =8, and Then the CO bias value set is CO = {0, 1, 2, 4, 5, 6}. If the ports 0, 1, 2, 3 of the SRS resources corresponding to the target terminal device correspond to They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0481] In the nth SRS SRS sending opportunity, port pi The corresponding CS can be calculated as follows:

[0482]

[0483] in,

[0484] When 'combOffsetHoppingSubset' is not configured:

[0485] S(l)=l,Y=K TC

[0486] When 'combOffsetHoppingSubset' is configured:

[0487]

[0488] Among them, 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on.

[0489] Method 2: The network device sends an indication message, and the indication message length is K TC The bitmap of -1 is recorded as in accordance with Sure By Add a 1 to the leftmost side to get For example, if but is 1011, where It may be the second bitmap in method 800 .

[0490] Among them, when the index of element 1 in the bitmap represents the available CO bias, The highest bit must be 1 (the left side of the bitmap is the high bit and the right side is the low bit), or in other words The 0th bit of the bitmap must be 1 (the leftmost bit of the bitmap is the first bit. For example, if bitmap = 10, the 0th bit is 1 and the 1st bit is 0). Or, when the index of element 0 in the bitmap represents the available CO bias, The highest bit of must be 0, or The 0th bit of must be 0.

[0491] For example, Fig.12 As shown, if the network device configuration K TC =8, and By It can be determined Then the CO bias value set is CO = {0, 1, 2, 4, 5, 6}. If the ports 0, 1, 2, 3 of the SRS resources corresponding to the target terminal device correspond to They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0492] When SRS resource configuration CO hopping is turned on, SRS SRS sending opportunity, port p i The corresponding CS can be calculated as follows:

[0493]

[0494] in,

[0495] When 'combOffsetHoppingSubset' is not configured:

[0496] S(l)=l,Y=K TC

[0497] When 'combOffsetHoppingSubset' is configured:

[0498]

[0499] Among them, 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on.

[0500] Method 3: The network device sends an indication message, and the indication message length is K TC / Q bitmap, denoted as in accordance with Sure in It may be the third bitmap in method 800 .

[0501] Among them, based on Sure There are two possible ways, one is By Perform Q-times period extension to obtain, for example, Q=2, but One is By Zero padding to Long acquisition, for example, Q = 2, but

[0502] Q can be indicated, preset, or determined based on some rules. The following are several ways to determine Q based on rules:

[0503] Method 3.1: Q can be occupied by SRS resources in the same CS port number Sure,

[0504] in,

[0505]

[0506] Take the cycle extension as an example, Fig.12 As shown, if the network device configuration K TC =8, According to the above formula, we can determine Q=2, then It can be determined Then the CO bias value set is CO = {0, 1, 2, 4, 5, 6}, and the ports 0, 1, 2, 3 of the SRS resources corresponding to the target terminal device correspond to They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0507] In the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0508]

[0509] in,

[0510] When 'combOffsetHoppingSubset' is not configured:

[0511] S(l)=l,Y=K TC

[0512] When 'combOffsetHoppingSubset' is configured:

[0513]

[0514] 'combOffsetHoppingSubset' is a parameter configured for the network device, indicating whether the CO hopping subset is turned on or off.

[0515] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CO can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0516]

[0517] in,

[0518] When 'combOffsetHoppingSubset' is configured:

[0519]

[0520] When 'combOffsetHoppingSubset' is not configured:

[0521]

[0522] 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on or off.

[0523] Method 3.2: Q can be occupied by SRS resources in the same CS port number Sure,

[0524] in,

[0525]

[0526] Take the cycle extension as an example, Fig.12 As shown, if the network device configuration K TC =8, According to the above formula, we can determine Q=2, then It can be determined Then the CO bias value set is CO = {0, 1, 2, 4, 5, 6}. If the ports 0, 1, 2, 3 of the SRS resources corresponding to the target terminal device correspond to They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0527] In the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0528]

[0529] in,

[0530] When 'combOffsetHoppingSubset' is not configured:

[0531] S(l)=l,Y=K TC

[0532] When 'combOffsetHoppingSubset' is configured:

[0533]

[0534] 'combOffsetHoppingSubset' is a parameter configured for the network device, indicating whether the CO hopping subset is turned on or off.

[0535] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CO can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0536]

[0537] in,

[0538] When 'combOffsetHoppingSubset' is configured:

[0539]

[0540] When 'combOffsetHoppingSubset' is not configured:

[0541]

[0542] 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on or off.

[0543] Method 3.3: Q can be determined by the number of ports of different comb teeth occupied by SRS resources Sure,

[0544] in,

[0545]

[0546] Take the cycle extension as an example, Fig.12 As shown, if the network device configuration K TC =8, According to the above formula, we can determine Q=2, then It can be determined Then the CO offset value set is CO = {0,1,2,4,5,6}. If the target terminal device corresponds to ports 0,1,2,3 They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0547] In the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0548]

[0549] in,

[0550] When 'combOffsetHoppingSubset' is not configured:

[0551] S(l)=l,Y=K TC

[0552] When 'combOffsetHoppingSubset' is configured:

[0553]

[0554] 'combOffsetHoppingSubset' is a parameter configured for the network device, indicating whether the CO hopping subset is turned on or off.

[0555] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CO can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0556]

[0557] in,

[0558] When 'combOffsetHoppingSubset' is configured:

[0559]

[0560] When 'combOffsetHoppingSubset' is not configured:

[0561]

[0562] 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on or off.

[0563] Method 3.4: Q can be determined by the number of ports of different comb teeth occupied by SRS resources Sure,

[0564] in,

[0565]

[0566] Take the cycle extension as an example, Fig.12 As shown, if the network device configuration K TC =8, According to the above formula, we can determine =2, then It can be determined Then the CO offset value set is CO = {0,1,2,4,5,6}. If the target terminal device corresponds to ports 0,1,2,3 They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0567] In the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0568]

[0569] in,

[0570] When 'combOffsetHoppingSubset' is not configured:

[0571] S(l)=l,Y=K TC

[0572] When 'combOffsetHoppingSubset' is configured:

[0573]

[0574] 'combOffsetHoppingSubset' is a parameter configured for the network device, indicating whether the CO hopping subset is turned on or off.

[0575] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CO can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0576]

[0577] in,

[0578] When 'combOffsetHoppingSubset' is configured:

[0579]

[0580] When 'combOffsetHoppingSubset' is not configured:

[0581]

[0582] 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on or off.

[0583] Method 3.5: Q can be obtained by K TC Sure,

[0584] Take the cycle extension as an example, Fig.12 As shown, if the network device configuration K TC =8, According to the above formula, Q = 2, then It can be determined Then the CO bias value set is CO = {0, 1, 2, 4, 5, 6}. If the ports 0, 1, 2, 3 of the SRS resources corresponding to the target terminal device correspond to They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0585] In the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0586]

[0587] in,

[0588] When 'combOffsetHoppingSubset' is not configured:

[0589] S(l)=l,Y=K TC

[0590] When 'combOffsetHoppingSubset' is configured:

[0591]

[0592] 'combOffsetHoppingSubset' is a parameter configured for the network device, indicating whether the CO hopping subset is turned on or off.

[0593] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CO can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0594]

[0595] in,

[0596] When 'combOffsetHoppingSubset' is configured:

[0597]

[0598] When 'combOffsetHoppingSubset' is not configured:

[0599]

[0600] 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on or off.

[0601] Mode 4: the bitmap is preset, and the network device indicates the index R of the bitmap to notify the bitmap, and the index R may be the index indicated by the network device in method 800 .

[0602] For example, the bitmap may be determined according to Table 3 below.

[0603] Table 3

[0604] <![CDATA[K TC ]]> Q R Bitmap 4 1 0 1110 1 1110 2 2 1010 0 1010 8 1 or 2 0 11101110 1 11011101 2 11001100 4 0 10101010

[0605] Take the cycle extension as an example, Fig.12 As shown, if the network device configuration K TC =8, Q=2,R=0, then it can be determined from Table 3 Then the CO bias value set is CO = {0, 1, 2, 4, 5, 6}. If the ports 0, 1, 2, 3 of the SRS resources corresponding to the target terminal device correspond to They are 0, 4, 0, 4 in sequence. The area sets corresponding to each port that can perform CO hopping are CO = {0, 1, 2, 4, 5, 6}, CO = {4, 5, 6, 0, 1, 2}, CO = {0, 1, 2, 4, 5, 6}, and CO = {4, 5, 6, 0, 1, 2} in sequence.

[0606] In the nth SRSSRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0607]

[0608] in,

[0609] When 'combOffsetHoppingSubset' is not configured:

[0610] S(l)=l,Y=K TC

[0611] When 'combOffsetHoppingSubset' is configured:

[0612]

[0613] 'combOffsetHoppingSubset' is a parameter configured for the network device, indicating whether the CO hopping subset is turned on or off.

[0614] Or, at the nth SRS SRS sending opportunity, port p i The corresponding CO can be obtained by and Q determine that at the nth SRS SRS sending opportunity, port p i The corresponding CO can be calculated according to the following formula:

[0615]

[0616] in,

[0617] When 'combOffsetHoppingSubset' is configured:

[0618]

[0619] When 'combOffsetHoppingSubset' is not configured:

[0620]

[0621] 'combOffsetHoppingSubset' is a parameter configured in the network device, indicating whether the CO hopping subset is turned on or off.

[0622] Combine the following Fig.13 and Fig.14 This section describes how to allocate SRS resources when the SRS resources contain 8 ports.

[0623] When the SRS resource contains 8 ports, one implementation method is to divide the 8 ports contained in the SRS resource into two groups, each group contains four ports, and the two groups of ports are mapped to different orthogonal frequency-division multiplexing (OFDM) symbols respectively, and the two groups of ports are orthogonally multiplexed through time. i , CSα i Defined as:

[0624]

[0625]

[0626] For example, the number of ports corresponding to the SRS resources configured by the network device for the terminal device Comb tooth degree K TC =4, maximum CS value CS starting position The 8 port numbers of the SRS resource correspond to port numbers p i =1000,1001,1002,1003,1004,1005,1006,1007, the CSs corresponding to the eight ports are CS0, CS3, CS6, CS9, CS0, CS3, CS6, CS9 respectively. If ports 1000,1001,1002,1003 are grouped together, and ports 1004,1005,1006,1007 are grouped together, and the two groups of ports occupy different symbols, then the allocation method of the eight port pairs corresponding to the SRS resources can be as follows: Fig.13 shown.

[0627] However, when ports 1000, 1001, 1004, and 1005 are grouped together, and ports 1002, 1003, 1006, and 1007 are grouped together, the resource allocation is as follows: Fig.13 As shown, since port 1000 and port 1004 are allocated the same resources (ports 1000 and 1004 have the same symbol, the same comb teeth, and the same CS), a collision occurs; since port 1001 and port 1005 are allocated the same resources (port 1001 and port 1005 have the same symbol, the same comb teeth, and the same CS), a collision occurs.

[0628] Therefore, when the SRS resources include 8 ports and the port groups are mapped to different symbols, resource collision when discontinuous port numbers are allocated to the same group is an urgent problem to be solved.

[0629] Fig.15Another communication method provided in an embodiment of the present application may include the following steps.

[0630] S1501, the terminal device receives the third indication information sent by the network device.

[0631] S1502: The terminal device obtains, according to the third indication information, a port number corresponding to the i-th port among the N ports corresponding to the sounding reference signal SRS resource.

[0632] Wherein, N is a positive integer, i is less than or equal to N, and the N ports are divided into two groups and mapped to different OFDM symbols respectively.

[0633] S1503, determining a cyclic shift value corresponding to the ith port according to the cyclic shift reference index and the port number corresponding to the ith port; and determining a comb tooth corresponding to the ith port according to the comb tooth offset value and the port number corresponding to the ith port.

[0634] The cyclic shift value corresponding to the i-th port is different from the cyclic shift value corresponding to the i+4-th port.

[0635] Cyclic displacement value of the port It can be determined according to the following formula:

[0636] Optionally, the following formula may be applied when N=8 and the high-level parameter tdm is enabled.

[0637]

[0638] or,

[0639]

[0640] or,

[0641] When the number of SRS resource ports is equal to 8, the high-level parameter tdm is set to enabled and the maximum cyclic shift value is 6, the cyclic shift value corresponding to port i is determined according to the following formula:

[0642]

[0643] When the number of SRS resource ports is equal to 8, the high-level parameter tdm is set to enabled and the maximum cyclic shift value is not 6, the cyclic shift value corresponding to port i is determined according to the following formula:

[0644]

[0645] or,

[0646] When the number of SRS resource ports is equal to 8, the high-level parameter tdm is set to enabled and the maximum cyclic shift value is 6, the cyclic shift value corresponding to port i is determined according to the following formula:

[0647]

[0648] When the number of SRS resource ports is equal to 8, the high-level parameter tdm is set to enabled and the maximum cyclic shift value is not 6, the cyclic shift value corresponding to port i is determined according to the following formula:

[0649]

[0650] The comb offset value corresponding to the port Determined by the following formula:

[0651]

[0652] or,

[0653]

[0654] or,

[0655] When the number of SRS resource ports is equal to 8, the high-level parameter tdm is set to enabled, the maximum cyclic shift value is 6, and the port number corresponding to port i belongs to {1001, 1003, 1005, 1007}, the cyclic shift value corresponding to port i is determined according to the following formula:

[0656]

[0657] When the number of SRS resource ports is equal to 8, the high-level parameter tdm is set to enabled, the port number corresponding to port i belongs to {1001, 1003, 1005, 1007} ​​and the starting cyclic shift value belong When , the cyclic shift value corresponding to port i is determined according to the following formula:

[0658]

[0659] When the number of SRS resource ports is equal to 8, the high-level parameter tdm is set to enabled, but the port number corresponding to port i does not belong to {1001, 1003, 1005, 1007} ​​and the starting cyclic shift value belong Or when the maximum cyclic shift value is not 6 and the port number corresponding to port i belongs to {1001, 1003, 1005, 1007}, the cyclic shift value corresponding to port i is determined according to the following formula:

[0660]

[0661] In one embodiment, N=8, wherein port 0, port 4, and port 5 occupy a first OFDM symbol, and port 2, port 3, port 6, and port 7 occupy a second symbol, and the first symbol is different from the second symbol.

[0662] In an embodiment of the present application, the cyclic shift value corresponding to the ith port can be determined by the port number corresponding to the ith port and the cyclic shift reference index. Since the cyclic shift value corresponding to the ith port is different from the cyclic shift value corresponding to the (i+4)th port, when the SRS resources include 8 ports and the port groups are mapped to different symbols, resource collisions caused by discontinuous port numbers being assigned to the same group can be avoided.

[0663] The above describes the communication method provided by the embodiments of the present application. Fig.16 and Fig.17 Describe the apparatus and devices of the embodiments of the present application.

[0664] Fig.16 1 is a schematic diagram of a communication device 1600 provided in an embodiment of the present application. The device 1600 may include a transceiver unit 1610, a storage unit 1620, and a processing unit 1630. The transceiver unit 1610 is used to receive and send instructions and / or data. The transceiver unit 1610 may also be referred to as a communication interface or a communication unit. The storage unit 1620 is used to implement a corresponding storage function and store corresponding instructions and / or data. The processing unit 1630 may read the instructions and / or data in the storage unit so that the device 1600 implements the aforementioned communication method.

[0665] As a design, device 1600 can be used to execute the actions performed by the terminal device in the above method embodiment.

[0666] In one embodiment, the device 1600 includes: a processing unit 1630, used to obtain an initial cyclic shift value of the i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with a first bitmap, and the length of the first bitmap is less than or equal to the maximum cyclic shift value; a transceiver unit 1610, used to send an SRS according to the initial cyclic shift value and the first cyclic offset of the i-th port in the first cyclic shift offset set.

[0667] In a possible implementation, the length of the first bitmap is equal to the maximum cyclic shift value.

[0668] In a possible implementation, the first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

[0669] In a possible implementation, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value-1.

[0670] In a possible implementation, the first bitmap is associated with the third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

[0671] In a possible implementation manner, the Q value is associated with at least one of the following: the number of ports with the same comb teeth occupied by SRS resources, the number of ports with different cyclic shifts occupied by SRS resources, or a maximum cyclic shift value.

[0672] In a possible implementation, the first bitmap is associated with an index indicated by the network device.

[0673] In one embodiment, the device 1600 includes: a processing unit 1630, used to obtain an initial comb tooth offset value of the i-th port among N ports corresponding to the SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first comb tooth offset bias set is associated with a first bitmap, and the length of the first bitmap is less than or equal to the comb tooth degree; a transceiver unit 1610, used to send the SRS according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset bias set.

[0674] In a possible implementation, the length of the first bitmap is equal to the comb tooth length.

[0675] In a possible implementation, the first comb tooth offset bias set is an index of bit 1 or bit 0 in the first bitmap.

[0676] In a possible implementation, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree-1.

[0677] In a possible implementation, the first bitmap is associated with the third bitmap and a value of Q, and the combing degree is equal to Q times the length of the third bitmap.

[0678] In a possible implementation manner, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by SRS resources, or the comb tooth degree.

[0679] In a possible implementation, the first bitmap is associated with an index indicated by the network device.

[0680] In one embodiment, the device 1600 includes: a processing unit 1630, used to obtain an initial cyclic shift value of the i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with a third bitmap and a value of Q, and the length of the third bitmap is less than or equal to the maximum cyclic shift value; a transceiver unit 1610, used to send an SRS according to the initial cyclic shift value and the first cyclic offset of the i-th port in the first cyclic shift offset set.

[0681] In a possible implementation manner, the Q value is associated with at least one of the following: the number of ports with the same comb teeth occupied by SRS resources, the number of ports with different cyclic shifts occupied by SRS resources, or a maximum cyclic shift value.

[0682] In one embodiment, the device 1600 includes: a processing unit 1630, used to obtain an initial comb tooth offset value of the i-th port among N ports corresponding to the SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first comb tooth offset bias set is associated with a third bitmap and a value of Q, and the length of the third bitmap is less than or equal to the comb tooth degree; a transceiver unit 1610, used to send the SRS according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset bias set.

[0683] In a possible implementation manner, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by SRS resources, or the comb tooth degree.

[0684] In one embodiment, a communication device is provided, including: a processing unit, used to obtain a port number corresponding to the i-th port among N ports corresponding to a sounding reference signal SRS resource, wherein N is a positive integer, i is less than or equal to N, and the N ports are divided into two groups and mapped to different OFDM symbols respectively; determining a cyclic shift value corresponding to the i-th port according to a cyclic shift reference index and a port number corresponding to the i-th port; determining a comb tooth corresponding to the i-th port according to a comb tooth offset value and a port number corresponding to the i-th port, wherein the cyclic shift value corresponding to the i-th port is different from the cyclic shift value corresponding to the i+4th port.

[0685] As a design, it is used to execute the actions performed by the terminal device in the above method embodiment.

[0686] In one embodiment, the device 1600 includes: a processing unit 1630, used to configure an initial cyclic shift value of the i-th port among N ports corresponding to SRS resources and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with a first bitmap, and the length of the first bitmap is less than or equal to the maximum cyclic shift value; a transceiver unit 1610, used to send first indication information to a terminal device, the first indication information including: an initial cyclic shift value and a first cyclic shift offset set.

[0687] In a possible implementation, the length of the first bitmap is equal to the maximum cyclic shift value.

[0688] In a possible implementation, the first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

[0689] In a possible implementation, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value-1.

[0690] In a possible implementation, the first bitmap is associated with the third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

[0691] In a possible implementation manner, the value of Q is associated with at least one of the following: the number of ports with the same comb teeth occupied by SRS resources, the number of ports with different cyclic shifts occupied by SRS resources, or a maximum cyclic shift value.

[0692] In one embodiment, the device 1600 includes: a processing unit 1630, used to configure an initial comb tooth offset value of the i-th port among N ports corresponding to the SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first comb tooth offset bias set is associated with a first bitmap, and the length of the first bitmap is less than or equal to the comb tooth degree; a transceiver unit 1610, used to send second indication information to the terminal device, the second indication information including: an initial comb tooth offset value and a first comb tooth offset bias set.

[0693] In a possible implementation, the length of the first bitmap is equal to the comb tooth length.

[0694] In a possible implementation, the first comb tooth offset bias set is an index of bit 1 or bit 0 in the first bitmap.

[0695] In a possible implementation, the first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree-1.

[0696] In a possible implementation, the first bitmap is associated with the third bitmap and a value of Q, and the combing degree is equal to Q times the length of the third bitmap.

[0697] In a possible implementation manner, the value of Q is associated with at least one of the following: the number of ports with the same cyclic shift occupied by SRS resources, the number of ports with different comb teeth occupied by SRS resources, or the comb tooth degree.

[0698] In a possible implementation, the first bitmap is associated with an index indicated by the network device.

[0699] Fig.17 It is a schematic diagram of another communication device 1700 provided in an embodiment of the present application.

[0700] The device 1700 includes: a memory 1710, a processor 1720, and a communication interface 1730. The memory 1710, the processor 1720, and the communication interface 1730 are connected through an internal connection path, the memory 1710 is used to store instructions, and the processor 1720 is used to execute the instructions stored in the memory 1710 to control the communication interface 1730 to obtain information, so that the device 1700 implements the aforementioned communication method. Optionally, the memory 1710 can be coupled to the processor 1720 through an interface, or can be integrated with the processor 1720.

[0701] It should be noted that the communication interface 1730 uses a transceiver device such as, but not limited to, a transceiver. The communication interface 1730 may also include an input / output interface.

[0702] The processor 1720 stores one or more computer programs, which include instructions. When the instructions are executed by the processor 1720, the device 1700 executes the communication method in each of the above embodiments.

[0703] It should be understood that in the embodiment of the present application, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0704] It should also be understood that in the embodiment of the present application, the memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the processor may also include a non-volatile random access memory. For example, the processor may also store information about the device type.

[0705] In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 1720 or an instruction in the form of software. The method disclosed in conjunction with the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in the processor for execution. The software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1710, and the processor 1720 reads the information in the memory 1710 and completes the steps of the above method in conjunction with its hardware. To avoid repetition, it is not described in detail here.

[0706] Optionally, Fig.17 The communication interface 1730 in the Fig.16 The transceiver unit 1610 in Fig.17 The memory 1710 in the embodiment can realize Fig.16 The storage unit 1620, Fig.17 The processor 1720 in the embodiment can implement Fig.16 The processing unit 1630 in.

[0707] The embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a program code, and when the computer program code is executed on a computer, the computer executes the above Figures 7 to 15 Any of the methods in .

[0708] The present application also provides a computer program product, which includes a computer program. When the computer program is executed, the computer executes the above Figures 7 to 15 Any of the methods in .

[0709] The present application also provides a chip, including: a circuit, the circuit is used to execute the above Figures 7 to 15 Any of the methods in .

[0710] The present application also provides a terminal device, including: Fig.16 or Fig.17 The communication device shown.

[0711] The present application also provides a network device, including: Fig.16 or Fig.17 The communication device shown.

[0712] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0713] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0714] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0715] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0716] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0717] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: The method comprises: Obtain an initial cyclic shift value of an i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, where N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a maximum cyclic shift value; The SRS is sent according to the initial cyclic shift value and a first cyclic offset of the i-th port in the first cyclic shift offset set.

2. The method according to claim 1, characterized in that The length of the first bitmap is equal to the maximum cyclic shift value.

3. The method according to claim 2, characterized in that The first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

4. The method according to claim 2, characterized in that The first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value-1.

5. The method according to claim 1, characterized in that The first bitmap is associated with a third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

6. The method according to claim 4, characterized in that The value of Q is associated with at least one of the following: the number of ports of the same comb teeth occupied by the SRS resources, the number of ports of different cyclic shifts occupied by the SRS resources, or the maximum cyclic shift value.

7. The method according to claim 1, characterized in that The first bitmap is associated with an index indicated by the network device.

8. A communication method, characterized in that: The method comprises: Obtaining an initial comb tooth offset value of an i-th port among N ports corresponding to an SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first comb tooth offset bias set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a comb tooth degree; The SRS is sent according to the initial comb tooth offset value and the first comb tooth offset of the i-th port in the first comb tooth offset offset set.

9. The method according to claim 8, characterized in that The length of the first bitmap is equal to the comb tooth length.

10. The method according to claim 9, characterized in that The first comb offset bias set is an index of bit 1 or bit 0 in the first bitmap.

11. The method according to claim 9, characterized in that The first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree-1.

12. The method according to claim 8, characterized in that The first bitmap is associated with the third bitmap and a value of Q, and the combing degree is equal to Q times the length of the third bitmap.

13. The method according to claim 12, characterized in that The value of Q is associated with at least one of the following: the number of ports occupied by SRS resources with the same cyclic shift, the number of ports occupied by the SRS resources with different comb teeth, or the comb tooth degree.

14. The method according to claim 8, characterized in that The first bitmap is associated with an index indicated by the network device.

15. A communication device, characterized in that: The device comprises: a processing unit, configured to obtain an initial cyclic shift value of an i-th port among N ports corresponding to a sounding reference signal SRS resource and a first cyclic shift offset set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first cyclic shift offset set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a maximum cyclic shift value; The transceiver unit is configured to send an SRS according to the initial cyclic shift value and a first cyclic offset of the i-th port in the first cyclic shift offset set.

16. The device according to claim 15, characterized in that The length of the first bitmap is equal to the maximum cyclic shift value.

17. The device according to claim 16, characterized in that The first cyclic shift offset set is an index of bit 1 or bit 0 in the first bitmap.

18. The device according to claim 16, characterized in that The first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the maximum cyclic shift value-1.

19. The device according to claim 15, characterized in that The first bitmap is associated with a third bitmap and a value of Q, and the maximum cyclic shift value is equal to Q times the length of the third bitmap.

20. The device according to claim 19, characterized in that The Q value is associated with at least one of the following: the number of ports of the same comb teeth occupied by the SRS resources, the number of ports of different cyclic shifts occupied by the SRS resources, or the maximum cyclic shift value.

21. The device according to claim 15, characterized in that The first bitmap is associated with an index indicated by the network device.

22. A communication device, characterized in that: The device comprises: A processing unit, configured to obtain an initial comb tooth offset value of an i-th port among N ports corresponding to an SRS resource and a first comb tooth offset bias set corresponding to the N ports, wherein N is a positive integer, i is less than or equal to N, the first comb tooth offset bias set is associated with a first bitmap, and a length of the first bitmap is less than or equal to a comb tooth degree; The transceiver unit is configured to send an SRS according to the initial comb tooth offset value and a first comb tooth offset of the i-th port in the first comb tooth offset set.

23. The device according to claim 22, characterized in that The length of the first bitmap is equal to the comb tooth length.

24. The device according to claim 23, characterized in that The first comb offset bias set is an index of bit 1 or bit 0 in the first bitmap.

25. The device according to claim 23, characterized in that The first bitmap is obtained by adding 0 or 1 to the highest bit of the bits in the second bitmap, and the length of the second bitmap is the comb tooth degree-1.

26. The device according to claim 22, characterized in that The first bitmap is associated with the third bitmap and a value of Q, and the combing degree is equal to Q times the length of the third bitmap.

27. The device according to claim 26, characterized in that The value of Q is associated with at least one of the following: the number of ports occupied by SRS resources with the same cyclic shift, the number of ports occupied by the SRS resources with different comb teeth, or the comb tooth degree.

28. The device according to claim 22, characterized in that The first bitmap is associated with an index indicated by the network device.

29. A communication device, characterized in that: include: A processor and a memory, wherein the processor is coupled to the memory and is configured to read and execute instructions in the memory to perform the method according to any one of claims 1 to 7.

30. A communication device, characterized in that: include: A processor and a memory, wherein the processor is coupled to the memory and is configured to read and execute instructions in the memory to perform the method according to any one of claims 8 to 14.

31. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a program code, and when the computer program code is executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 14.

32. A chip, characterized in that: include: A circuit for executing the method according to any one of claims 1 to 14.

33. A terminal device, characterized in that: include: A device as claimed in any one of claims 15 to 30.

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