Communication method and apparatus

Abstract

A communication method and an apparatus, relating to the technical field of communications. The method comprises: a terminal may receive first configuration information, the first configuration information being used to determine a first resource and a second resource, the transmit power of a downlink transmission of the first resource being first transmit power, the transmit power of a downlink transmission of the second resource being second transmit power, and the first transmit power being greater than the second transmit power. In this way, not only cross-link interference and resource waste can be reduced, but also transmission performance can be ensured.

Description

A communication method and apparatus

[0001] This application claims priority to Chinese Patent Application No. 202411751194.9, filed on November 29, 2024, with the Chinese National Intellectual Property Administration, entitled “A Communication Method and Apparatus”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0003] Sub-band full duplex (SBFD) increases uplink frequency domain resources and improves uplink coverage by dividing the frequency domain resources of a downlink time domain resource into one or more downlink sub-bands and one or more uplink sub-bands.

[0004] Currently, in SBFD (Simplified Branch Flow Difference), the downlink (DL) causes cross-link interference to the uplink (UL). To reduce cross-link interference and enable network devices to better suppress interference and ensure transmission performance, a guard band can be set between the uplink and downlink subbands. The guard band can include several resource blocks (RBs), which are not used for uplink or downlink transmission. However, if the guard band is too narrow, it may not significantly reduce cross-link interference. If the guard band is too wide, it may result in a serious waste of resources. Furthermore, since the downlink transmit power is limited, it may not be possible to guarantee the transmission performance requirements of all terminals within the coverage area of ​​the network device. Therefore, how to reduce cross-link interference, minimize resource waste, and ensure transmission performance is an urgent problem to be solved. Summary of the Invention

[0005] This application provides a communication method and apparatus that can not only reduce cross-link interference and reduce resource waste, but also ensure transmission performance.

[0006] Firstly, a communication method is provided. This method can be executed by a terminal, or by a module applied to the terminal (such as a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Taking the application of this method to a terminal as an example, in this method, the terminal can receive first configuration information, which is used to determine a first resource and a second resource. The downlink transmission power of the first resource is a first transmission power, and the downlink transmission power of the second resource is a second transmission power. The first transmission power is greater than the second transmission power.

[0007] As can be seen from the above embodiments, the terminal can receive first configuration information to learn about the first and second resources configured by the network device. The first transmission power corresponding to the first resource is greater than the second transmission power corresponding to the second resource. That is, the transmission powers of the two resources used for downlink transmission are inconsistent. The second resource with lower transmission power can meet the power requirements for communication between the near terminal (i.e., the terminal closer to the network device) and the network device, while the first resource with higher transmission power can meet the power requirements for communication between the far terminal (i.e., the terminal farther from the network device) and the network device. For example, configuring a downlink resource that is adjacent or close to the uplink resource in the frequency domain as the second resource can reduce interference to uplink transmission due to the lower transmission power of the second resource. This reduces resource waste, improves downlink transmission performance, and also reduces cross-link interference. Alternatively, downlink resources in different time domains can be configured as first resources and second resources respectively. The first resource with high transmission power and the second resource with low transmission power can be used for terminals at different distances or under different channel conditions, which can ensure transmission performance. Furthermore, the transmission power of the first resource can be further increased. Since the second resource has a lower transmission power, the coverage of transmission on the first resource can be further improved while meeting radio frequency and regulatory requirements.

[0008] In one possible implementation, the method further includes: the terminal may receive second configuration information for determining a periodic downlink reference signal, the periodic downlink reference signal for determining a path loss estimate, wherein all of the periodic downlink reference signals are located in a first resource, or all of them are located in a second resource.

[0009] As can be seen from the above embodiments, the terminal can receive second configuration information to obtain the downlink reference signal configuration of the network device for a given period. The downlink reference signal for this period needs to be entirely located on the first resource, or entirely on the second resource, and a path loss estimate is determined based on the downlink reference signal for the period. The path loss estimate is related to the measured value obtained from the current measurement of the downlink reference signal for the period and the previously determined path loss estimate. That is, if the downlink reference signal for the period is entirely located on the first resource, both the downlink reference signal for the period measured by the terminal this time and the downlink reference signal for the period measured in the past are located on the first resource. Alternatively, if the downlink reference signal for the period is entirely located on the second resource, both the downlink reference signal for the period measured by the terminal this time and the downlink reference signal for the period measured in the past are located on the second resource. This avoids power deviation and path loss estimation deviation caused by the downlink reference signal for the current period and the downlink reference signal for the period measured in the past being located on different resources, thus ensuring that the determined path loss estimate is accurate and improving power control accuracy and communication performance. For example, when the downlink reference signal configured in the network device is located at both the first and second resources, the terminal measures the downlink reference signal located at both resources and obtains a measurement value. Based on this measurement and historical measurements, it determines the current path loss estimate. That is, the downlink reference signal used to determine the current path loss estimate includes both the downlink reference signal located at the first and second resources. Because the transmission power of the downlink reference signals located at the first and second resources differs, the measured values ​​of the same path loss experienced by different reference signals will differ. Specifically, the power deviation between the measured values ​​corresponding to the first and second resources will be large, leading to inaccurate path loss estimates and severely impacting power control accuracy and communication performance.

[0010] In one possible implementation, the method further includes: the terminal receiving second configuration information for determining a periodic downlink reference signal. Thus, the terminal can determine a path loss estimate based on a first measurement value and a first transmit power, the first measurement value being a measurement of the periodic downlink reference signal located on a first resource. Alternatively, the terminal can determine the path loss estimate based on a second measurement value and a second transmit power, the second measurement value being a measurement of the periodic downlink reference signal located on a second resource.

[0011] As can be seen, in the above embodiments, the terminal can receive second configuration information to obtain the downlink reference signal of the period configured by the network device. Thus, the terminal can use a first measurement value and a first transmission power to determine the path loss estimate, or use a second measurement value and a second transmission power to determine the path loss estimate. The first measurement value is the measurement value of the downlink reference signal of the period located on the first resource, and the second measurement value is the measurement value of the downlink reference signal of the period located on the second resource. That is, when the downlink reference signal of the period configured by the network device is located on both the first and second resources, the terminal needs to determine the path loss estimate based on the first measurement value and the first transmission power, or based on the second measurement value and the second transmission power. In other words, the terminal only measures the downlink reference signal of the period located on the first resource and uses it to determine the path loss estimate, or the terminal only uses the first measurement value of the downlink reference signal of the period located on the first resource to determine the path loss estimate. Alternatively, the terminal only measures the downlink reference signal of the period located on the second resource and uses it to determine the path loss estimate, or the terminal only uses the second measurement value of the downlink reference signal of the period located on the second resource to determine the path loss estimate. This avoids the terminal determining the path loss estimate based on both the first and second measurement values, ensuring the accuracy of the determined path loss estimate and thus improving power control accuracy and communication performance. For example, when the downlink reference signal configured in the network equipment is located at both the first and second resources, the terminal measures the downlink reference signal located at both resources and determines the path loss estimate based on the current and historical measurements, as well as the transmission power of the downlink reference signal located at both resources. That is, the downlink reference signal used to determine the current path loss estimate includes both the downlink reference signal located at the first and second resources. Since the transmission power of the downlink reference signal located at the first and second resources differs, the measured values ​​for the same path loss experienced by different reference signals will differ. Specifically, the power deviation between the measured value corresponding to the first resource and the transmission power corresponding to the second resource will be large, leading to inaccurate path loss estimates and severely impacting power control accuracy and communication performance.

[0012] In one possible implementation, the method further includes: the terminal can determine the path loss estimate based on the first measurement value or the second measurement value based on the third configuration information or based on the relationship between the downlink signal received power and the first threshold value.

[0013] As can be seen, in the above embodiments, the terminal can determine the path loss estimate based on the first measurement value or the second measurement value according to the third configuration information or the relationship between the downlink signal received power and the first threshold value. For example, when the downlink signal received power is greater than the first threshold value, the terminal determines the path loss estimate based on the second measurement value. This can be understood as follows: when the downlink signal received power is greater than the first threshold value, it means that the channel conditions are good or the terminal is close to the network device, and the path loss estimate can be determined based on the second measurement value of the downlink reference signal with lower transmission power located in the period of the second resource. Similarly, when the downlink signal received power is less than or equal to the first threshold value, it means that the channel conditions are poor or the terminal is far from the network device, and the path loss estimate can be determined based on the first measurement value of the downlink reference signal with higher transmission power located in the period of the first resource. Thus, if the terminal determines the path loss estimate based on the first measurement value, the terminal device determines the path loss estimate based on the first measurement value and the first transmission power. Alternatively, if the terminal determines the path loss estimate based on the second measurement value, the terminal device determines the path loss estimate based on the second measurement value and the second transmission power. In this way, when the downlink reference signal of the network device configuration period is located at the first resource and the second resource, the terminal needs to determine the path loss estimate based on the first measurement value or the second measurement value. This avoids the terminal determining the path loss estimate based on both the first measurement value and the second measurement value, which makes the determined path loss estimate accurate, thereby improving the power control accuracy and communication performance.

[0014] In one possible implementation, the method further includes: the terminal receiving second configuration information for determining a periodic downlink reference signal. In this way, the terminal can determine a third measurement based on a second measurement and a power offset value, and determine a path loss estimate based on the third measurement and a first transmit power, wherein the second measurement is a measurement of the periodic downlink reference signal located on a second resource. Alternatively, the terminal can determine a fourth measurement based on the first measurement and the power offset value, and determine a path loss estimate based on the fourth measurement and a second transmit power, wherein the first measurement is a measurement of the periodic downlink reference signal located on a first resource.

[0015] As can be seen from the above embodiments, the terminal can receive the second configuration information to obtain the downlink reference signal of the period configured by the network device. Thus, the terminal can determine the path loss estimate based on the third measurement value determined by the second measurement value and the power offset value, and the first transmission power. That is, because the second measurement value is the measurement value of the downlink reference signal of the period located on the second resource (i.e., the resource with lower transmission power), and the first transmission power is the transmission power of the downlink reference signal of the period located on the first resource (i.e., the resource with higher transmission power), there is a power deviation between the high power and low power. Therefore, the terminal needs to determine the third measurement value based on the second measurement value and the power offset value, and then determine the path loss estimate based on the third measurement value and the first transmission power to ensure the accuracy of the path loss estimate, thereby improving power control accuracy and communication performance. Conversely, the terminal can also determine the fourth measurement value based on the first measurement value and the power offset value, and determine the path loss estimate based on the fourth measurement value and the second transmission power. In other words, since the first measurement value is the measurement value of the downlink reference signal of the period located on the first resource (i.e. the resource with higher transmission power), and the second transmission power is the transmission power of the downlink reference signal of the period located on the second resource (i.e. the resource with lower transmission power), there is a power deviation value between the high power and the low power. Therefore, the terminal needs to determine the fourth measurement value based on the first measurement value and the power deviation value, and then determine the path loss estimate based on the fourth measurement value and the second transmission power to ensure the accuracy of the path loss estimate and improve the power control accuracy and communication performance.

[0016] In one possible implementation, the power offset value is the offset between the first transmission power and the second transmission power.

[0017] In one possible implementation, the method further includes: when the downlink reference signal of the first measurement period is located in a first resource, the terminal can determine a path loss estimate based on a first transmit power; or, when the downlink reference signal of the first measurement period is located in a second resource, the terminal can determine a path loss estimate based on a second transmit power. Alternatively, the terminal can determine the path loss estimate based on the first transmit power or the second transmit power based on fourth configuration information. Alternatively, the terminal can determine the path loss estimate based on the relationship between the downlink signal received power and a first threshold value.

[0018] As can be seen from the above embodiments, when the downlink reference signal of the first measurement period is located in the first resource, the terminal can determine the path loss estimate based on the first transmit power; or, when the downlink reference signal of the first measurement period is located in the second resource, the terminal can determine the path loss estimate based on the second transmit power. That is, when the downlink reference signal of the first measurement period is located in the first resource, it means the terminal needs to use the transmit power corresponding to the first resource to determine the path loss estimate. When the downlink reference signal of the first measurement period is located in the second resource, it means the terminal needs to use the transmit power corresponding to the second resource to determine the path loss estimate. In other words, the transmit power of the resource where the downlink reference signal of the first measurement period is located determines the transmit power used for the path loss estimate. This avoids inconsistencies between the transmit power corresponding to the downlink reference signal of the measurement period and the transmit power corresponding to the determined path loss estimate, thus avoiding power offset values. This makes the determined path loss estimate accurate, thereby improving power control accuracy and communication performance. The terminal can also determine the path loss estimate based on the first transmit power or the second transmit power based on the fourth configuration information, or based on the relationship between the downlink signal received power and the first threshold value. For example, when the downlink signal received power is greater than a first threshold, the terminal determines the path loss estimate based on the second transmit power. This can be understood as follows: when the downlink signal received power is greater than the first threshold, it means the channel conditions are good or the terminal is close to the network equipment, and the path loss estimate can be determined based on the second transmit power of the downlink reference signal located in the period of the second resource, which has a lower transmit power. Similarly, when the downlink signal received power is less than or equal to the first threshold, it means the channel conditions are poor or the terminal is far from the network equipment, and the path loss estimate can be determined based on the first transmit power of the downlink reference signal located in the period of the first resource, which has a higher transmit power. Thus, if the terminal determines to determine the path loss estimate based on the first transmit power, the terminal equipment determines a third measurement based on the second measurement and the power offset, and then determines the path loss estimate based on the third measurement and the first transmit power. Alternatively, if the terminal determines to determine the path loss estimate based on the second transmit power, the terminal equipment determines a fourth measurement based on the first measurement and the power offset, and then determines the path loss estimate based on the fourth measurement and the second transmit power. In this way, when the downlink reference signal of the network device is configured to be located at the first resource and the second resource, the terminal needs to determine the path loss estimate based on the first transmission power or the second transmission power. This avoids the inconsistency between the transmission power corresponding to the measured downlink reference signal of the period and the transmission power corresponding to the determined path loss estimate, thus avoiding power deviation. This makes the determined path loss estimate accurate, thereby improving the accuracy of power control and communication performance.

[0019] In one possible implementation, the method further includes: the terminal can receive second configuration information for determining a periodic downlink reference signal. Thus, the terminal can filter multiple path loss values ​​to determine a path loss estimate, including a path loss value determined based on a first measurement value and a path loss value determined based on a second measurement value. The first measurement value is a measurement of the periodic downlink reference signal located on a first resource, and the second measurement value is a measurement of the periodic downlink reference signal located on a second resource. Specifically, the path loss value determined based on the first measurement value is determined based on the first measurement value and a first transmission power. Similarly, the path loss value determined based on the second measurement value is determined based on the second measurement value and a second transmission power.

[0020] As can be seen, in the above embodiments, the terminal can receive second configuration information to obtain the downlink reference signal of the period configured by the network device, thereby obtaining multiple path loss values ​​based on the periodic downlink reference signal. This allows the terminal to filter the multiple path loss values ​​to determine a path loss estimate. The multiple path loss values ​​may include the path loss value determined by a first measurement and a second measurement. The first measurement is the measurement value of the periodic downlink reference signal located on the first resource, and the second measurement is the measurement value of the periodic downlink reference signal located on the second resource. That is, the first measurement is obtained based on the periodic downlink reference signal located on the first resource, not on the periodic downlink reference signal located on the second resource. The second measurement is obtained based on the periodic downlink reference signal located on the second resource, not on the periodic downlink reference signal located on the first resource. In this way, the terminal determines a path loss value based on the downlink reference signal of each period and the corresponding transmission power. For example, if the downlink reference signal of a period is located on the first resource, the terminal determines the path loss value of that downlink reference signal based on the first measurement and the first transmission power. This ensures the accuracy of the multiple path loss values ​​determined by the terminal, and makes the path loss estimate determined by filtering the multiple path loss values ​​accurate, thereby improving the accuracy of power control and communication performance.

[0021] In one possible implementation, the downlink reference signal of the cycle is located at the first resource and the second resource.

[0022] In one possible implementation, the method further includes: the terminal may receive fifth configuration information, which is used to configure a control resource set and a search space set, wherein all time-frequency resources determined by the control resource set and the search space are located in the first resource, or all are located in the second resource.

[0023] As can be seen in the above embodiments, the terminal can receive the fifth configuration information to obtain the time-frequency resources determined by the control resource set and the search space set. These time-frequency resources need to be entirely located in the first resource, or entirely in the second resource, to avoid affecting the terminal's automatic gain control (AGC) and reception performance. For example, if the time-frequency resources determined by the control resource set and the search space set are located in both the first and second resources, and the second resource is used for downlink transmission of terminals closer to the network device, while the first resource is used for downlink transmission of terminals farther from the network device, then terminals farther from the network device may not be able to receive the corresponding downlink signal on the second resource, which would affect the terminal's AGC and reception performance.

[0024] In one possible implementation, the method further includes: the terminal can receive sixth configuration information, which is used to determine a periodic downlink reference signal. Thus, the terminal can determine, based on a comparison between the measured value and a threshold value of the periodic downlink reference signal, whether a radio link failure has occurred, whether a beam failure has occurred, whether a request message has been sent, a random access type, or a random access carrier, one or more of these; wherein the request message is used to request the retransmission of message 3, the random access type is two-step random access or four-step random access, and the random access carrier is normal uplink (NUL) or supplementary uplink (SUL). The comparison between the measured value and the threshold value of the periodic downlink reference signal includes: the terminal comparing the measured value of the periodic downlink reference signal located on a first resource with a second threshold value, and / or, the terminal comparing the measured value of the periodic downlink reference signal located on a second resource with a third threshold value, wherein the second threshold value and the third threshold value are determined separately. Alternatively, the terminal compares the measured value of the downlink reference signal of the period located on the first resource with the fourth threshold value, and / or, the terminal compares the measured value of the downlink reference signal of the period located on the second resource plus the power offset value with the fourth threshold value. Alternatively, the terminal compares the measured value of the downlink reference signal of the period located on the first resource minus the power offset value with the fifth threshold value, and / or, the terminal compares the measured value of the downlink reference signal of the period located on the second resource with the fifth threshold value. In other words, the threshold values ​​used to determine whether a radio link failure has occurred, whether a beam failure has occurred, whether a request message has been sent, the random access type, or the random access carrier can be configured separately. That is, determining whether a radio link failure has occurred, whether a beam failure has occurred, whether a request message has been sent, the random access type, or the random access carrier is determined based on their respective threshold values.

[0025] In one possible implementation, the method further includes: the terminal can receive seventh configuration information, which is used to determine a periodic downlink reference signal. In this way, the terminal can differentially report the measured values ​​of multiple downlink reference signals, which are downlink reference signals within a periodic downlink reference signal set. Specifically, the terminal can perform differential reporting based on a third and / or fourth measured value plus a power offset value, where the third measured value is the measured value of the downlink reference signal located on a first resource, and the fourth measured value is the measured value of the downlink reference signal located on a second resource. That is, the differential reporting method is applied when the multiple downlink reference signals for which the measured value is to be reported are located on the first and second resources, or when the downlink reference signal with the highest measured value among the multiple downlink reference signals for which the measured value is to be reported is located on the first resource. In this way, when all the multiple downlink reference signals for which the measured value is to be reported are located on the second resource, or when the downlink reference signal with the highest measured value among the multiple downlink reference signals for which the measured value is to be reported is located on the second resource, the terminal can directly perform differential reporting based on the measured values ​​of the multiple downlink reference signals.

[0026] As can be seen, in the above embodiments, the terminal can receive the seventh configuration information to obtain the downlink reference signal of the period configured by the network device. In this way, the terminal can differentially report the measured values ​​of multiple downlink reference signals. The third measured value is the measured value of the downlink reference signal located on the first resource among the multiple downlink reference signals, and the fourth measured value is the measured value of the downlink reference signal located on the second resource among the multiple downlink reference signals. Thus, the terminal can perform differential reporting based on the value of the third and / or fourth measured values ​​plus a power offset value. For example, when the terminal performs differential reporting, it can perform differential reporting based on the value of the third and fourth measured values ​​plus a power offset value, which can save indication overhead. Furthermore, since the differential reporting method directly reports the maximum measurement value, and the measurement values ​​of other downlink reference signals are reported according to the difference with the maximum measurement value, if the maximum measurement value is the measurement value of the downlink reference signal located on the first resource, then the measurement value of the downlink reference signal located on the second resource among the other downlink reference signals differs too much from the maximum measurement value, which may result in the difference range that needs to be indicated being too large. This problem can be solved by differentially reporting the measurement value of the downlink reference signal located on the second resource, that is, the value after adding the power offset value to the fourth measurement value, in the above embodiment.

[0027] In this scenario, when the control channel overlaps with at least two data channels in the time domain, the terminal can multiplex the control information contained in the control channel onto the data channel with the smallest index among the at least two data channels. However, when at least two data channels are located in SBFD time domain resources and non-SBFD time domain resources, uplink transmission in SBFD time domain resources is more susceptible to interference than uplink transmission in non-SBFD time domain resources, leading to a decrease in transmission performance. Based on this, a communication method is provided in the second aspect.

[0028] Secondly, a communication method is provided. This method can be executed by a terminal, or by a module applied to the terminal (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Taking the application of this method to a terminal as an example, in this method, the terminal can receive first information, which is used to determine a first type of time-domain resource and a second type of time-domain resource. When the transmitted first control channel overlaps with at least two data channels located in different time-domain resources, if the different time-domain resources include the first type of time-domain resource and the second type of time-domain resource, the terminal can multiplex the control information contained in the first control channel onto the data channel located in the second type of time-domain resource.

[0029] As can be seen, in the above embodiments, the terminal can receive first information to learn about the first type of time-domain resources and the second type of time-domain resources configured by the network device. When the transmitted first control channel overlaps with at least two data channels located in different time-domain resources, considering that uplink transmission on the first type of time-domain resources may be interfered with by downlink transmission on adjacent downlink resources, i.e., uplink transmission on the first type of time-domain resources is more susceptible to interference than uplink transmission on the second type of time-domain resources, the terminal can multiplex the control information contained in the first control channel onto the data channel located in the second type of time-domain resources, thereby ensuring transmission performance and the reliability of the first control channel.

[0030] To enable DMRS bonding in network devices and improve uplink transmission performance, power consistency and phase continuity between bonded DMRS transmissions need to be ensured. However, when performing uplink transmission on SBFD time-domain resources, higher uplink transmit power is required to resist cross-link interference from DL to UL and maintain uplink transmission performance. This leads to inconsistencies in uplink transmit power between different SBFD time-domain resources, thus disrupting power consistency and phase continuity, and preventing DMRS bonding from functioning correctly. Therefore, a communication method is provided in the third aspect.

[0031] Thirdly, a communication method is provided. This method can be executed by a terminal, or by a module applied to the terminal (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Taking the application of this method to a terminal as an example, in this method, the terminal can receive second information used to enable demodulation reference signal (DMRS) bundling. Thus, the terminal can determine one or more actual TDWs from a nominal time domain window (TDW) based on a first event. This nominal TDW is used for DMRS bundling. The first event includes one or more of the following: any two consecutive uplink transmissions within the nominal TDW are located on a first type of time domain resource and a second type of time domain resource, respectively; or, any two consecutive uplink transmissions within the nominal TDW have different transmission powers; or, any two consecutive uplink transmissions within the nominal TDW have different power parameters.

[0032] As can be seen from the above embodiments, the terminal can receive the second information to know that DMRS bundling is enabled. Thus, the terminal can determine one or more actual TDWs from the nominal TDWs used for DMRS bundling based on a first event. The first event includes one or more of the following: any two consecutive uplink transmissions within the nominal TDW are located on first-type time-domain resources and second-type time-domain resources respectively; or, any two consecutive uplink transmissions within the nominal TDW have different transmit powers; or, any two consecutive uplink transmissions within the nominal TDW have different power parameters. That is, the first event is an event where power consistency and phase continuity cannot be maintained. In other words, the terminal needs to use the boundary point of different transmit powers between any two consecutive uplink transmissions within the nominal TDW (e.g., the boundary point between second-type time-domain resources and first-type time-domain resources) as the first event, and determine one or more actual TDWs from the nominal TDW based on the first event. This can clearly define the time-domain range for DMRS bundling, better ensure the smooth implementation of DMRS bundling, and thus improve the channel estimation performance brought about by DMRS bundling.

[0033] To ensure transmission performance, network devices configure an appropriate number and location of DMRS for uplink transmissions from terminal devices. Terminals can send uplink transmissions and DMRS, and network devices perform channel estimation and decoding of the uplink transmissions based on the received DMRS. However, uplink transmissions from terminals on SBFD time-domain resources are more susceptible to interference, which can lead to inaccurate decoding of uplink transmissions on SBFD time-domain resources by network devices, resulting in degraded transmission performance. Therefore, a communication method is provided in the fourth aspect.

[0034] Fourthly, a communication method is provided. This method can be executed by a terminal, or by a module applied to the terminal (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Taking the application of this method to a terminal as an example, in this method, the terminal can receive third information, which is used to determine a first type of time-domain resource and a second type of time-domain resource. Thus, the terminal can receive fourth and fifth information, where the fourth information is used to determine the DMRS position of uplink transmission on the first type of time-domain resource, and the fifth information is used to determine the DMRS position of uplink transmission on the second type of time-domain resource. Alternatively, the terminal can receive sixth and seventh information, where the sixth information is used to determine the first DMRS position of uplink transmission on the first type of time-domain resource and the seventh information is used to configure the second DMRS position of uplink transmission on the first type of time-domain resource.

[0035] As can be seen, in the above embodiments, the terminal can receive third information to learn about the first type of time domain resources and the second type of time domain resources configured by the network device. Thus, the terminal can receive fourth and fifth information to learn about the DMRS positions of uplink transmissions on the first type of time domain resources and the second type of time domain resources configured by the network device, respectively. Alternatively, the terminal can also receive sixth and seventh information to learn about the first DMRS positions of uplink transmissions on the first type of time domain resources and the second DMRS positions of uplink transmissions on the second type of time domain resources configured by the network device, respectively. This allows the number of DMRSs on the first type of time domain resources to be greater than that on the second type of time domain resources. Considering that uplink transmission of the first type of time domain resources is more susceptible to interference than uplink transmission of the second type of time domain resources, the terminal performs channel estimation on the DMRS of the first type of time domain resources and the DMRS of the second type of time domain resources. This ensures that the channel estimation performance of uplink transmission of the first type of time domain resources is better than that of uplink transmission of the second type of time domain resources. This can resist the higher interference on the first type of time domain resources to a certain extent, thereby balancing the communication performance of uplink transmission of the first type of time domain resources and the second type of time domain resources.

[0036] Fifthly, a communication method is provided. This method can be executed by a network device, or by a module applied to the network device (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the functions of the network device. Taking the application of this method to a network device as an example, in this method, the network device can send first configuration information, which is used to determine a first resource and a second resource. The downlink transmission transmission power of the first resource is a first transmission power, and the downlink transmission transmission power of the second resource is a second transmission power. The first transmission power is greater than the second transmission power.

[0037] In one possible implementation, the method further includes: the network device can send fifth configuration information, which is used to configure a control resource set and a search space set, wherein all time-frequency resources determined by the control resource set and the search space are located in the first resource, or all are located in the second resource.

[0038] In one possible implementation, the method further includes: the network device can send seventh configuration information for determining a periodic downlink reference signal. Thus, the network device can receive measurements of multiple downlink reference signals, which are downlink reference signals within a periodic downlink reference signal set. These measurements are transmitted uplink using differential reporting. The differential reporting is based on a third measurement value and / or a fourth measurement value plus a power offset value, where the third measurement value is the measurement of the downlink reference signal located on a first resource, and the fourth measurement value is the measurement of the downlink reference signal located on a second resource.

[0039] The beneficial effects of the fifth aspect can be found in the beneficial effects of the first aspect, and will not be repeated here.

[0040] Sixthly, a communication method is provided. This method can be executed by a network device, or by a module (e.g., processor, chip, or chip system) applied to the network device, or by a logical node, logical module, or software capable of implementing all or part of the functions of the network device. Taking the application of this method to a network device as an example, in this method, the network device can send third information to determine a first type of time domain resource and a second type of time domain resource. Then, the network device can send fourth and fifth information, the fourth information used to determine the DMRS position of uplink transmission on the first type of time domain resource, and the fifth information used to determine the DMRS position of uplink transmission on the second type of time domain resource. Alternatively, the network device can send sixth and seventh information, the sixth information used to determine the first DMRS position of uplink transmission on the first type of time domain resource and the second type of time domain resource, and the seventh information used to configure the second DMRS position of uplink transmission on the first type of time domain resource.

[0041] The beneficial effects of the sixth aspect can be found in the beneficial effects of the fourth aspect, and will not be repeated here.

[0042] A seventh aspect provides a communication device comprising units, modules, or means for implementing the methods described in any one of the first, second, third, fourth, fifth, or sixth aspects. The communication device may be a terminal, a module of a terminal (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Alternatively, the communication device may be a network device, a module of a network device (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the network device's functions.

[0043] Eighthly, a communication device is provided, comprising at least one processor. The at least one processor is configured to cause the communication device to perform the method described in any one of the first, second, third, fourth, fifth, or sixth aspects. The communication device may be a terminal, a module of a terminal (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the terminal's functions. Alternatively, the communication device may be a network device, a module of a network device (e.g., a processor, chip, or chip system), or a logical node, logical module, or software capable of implementing all or part of the network device's functions. The at least one processor may execute a computer program or instructions stored in a memory to cause the aforementioned method to be performed. The memory may be included in the communication device or located outside the communication device. Furthermore, the communication device may also include an interface.

[0044] Ninth aspect, a computer-readable storage medium is provided, which stores computer instructions or programs that, when executed, cause a computer to perform the method as described in any one of the first, second, third, fourth, fifth, or sixth aspects.

[0045] In a tenth aspect, a computer program product is provided, comprising: a computer program or program that, when executed by a computer, causes the computer to perform the method as described in any one of the first, second, third, fourth, fifth, or sixth aspects.

[0046] Eleventhly, a chip is provided, comprising at least one processor and an interface. The processor is configured to execute computer instructions or programs, which, when run, cause the chip to perform the methods described in any one of the first, second, third, fourth, fifth, or sixth aspects. The processor may execute computer programs or instructions stored in memory to cause the aforementioned methods to be performed. The memory may be included in the chip or located externally. Furthermore, the chip may also include an interface.

[0047] In a twelfth aspect, a communication system is provided, comprising a terminal for performing the method as described in any one of the first aspects and a network device for performing the method as described in any one of the fifth aspects.

[0048] In a thirteenth aspect, a communication system is provided, comprising a terminal for performing the method as described in any one of the second aspects, and a network device for communicating with the terminal.

[0049] In a fourteenth aspect, a communication system is provided, including a network device for terminal-to-terminal communication for performing the method as described in any one of the third aspects.

[0050] In a fifteenth aspect, a communication system is provided, comprising a terminal for performing the method as described in any one of the fourth aspects and a network device for performing the method as described in any one of the sixth aspects. Attached Figure Description

[0051] Figure 1 shows the basic architecture of a communication system;

[0052] Figure 2 is a schematic diagram of the distribution of DL and UL in an SBFD provided in an embodiment of this application;

[0053] Figure 3 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0054] Figure 4a is a schematic diagram of the distribution of DL and UL in another SBFD provided in the embodiment of this application;

[0055] Figure 4b is a schematic diagram of the distribution of DL and UL in another SBFD provided in the embodiments of this application;

[0056] Figure 5a is a schematic diagram of the distribution of all SSBs located in the first resource according to an embodiment of this application;

[0057] Figure 5b is a schematic diagram of another distribution of SSBs located entirely in the first resource, provided by an embodiment of this application;

[0058] Figure 6 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0059] Figure 7 is a schematic diagram of the distribution of control channel multiplexing on the data channel according to an embodiment of this application;

[0060] Figure 8 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0061] Figure 9 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0062] Figure 10 is a schematic diagram of the distribution of DMRS in an SBFD provided in an embodiment of this application;

[0063] Figure 11 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0064] Figure 12 is a schematic diagram of the structure of another communication device provided in an embodiment of this application. Detailed Implementation

[0065] The technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. The terms "system" and "network" in the embodiments of this application can be used interchangeably. Unless otherwise stated, " / " indicates that the objects before and after are in an "or" relationship; for example, A / B can represent A or B. "And / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be one or multiple. Furthermore, to facilitate a clear description of the technical solutions in the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish between network elements and similar items with essentially the same function. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that "first" and "second" are not necessarily different. Additionally, the numbering of steps in the various embodiments described in this application is only for distinguishing different steps and is not intended to limit the order of steps.

[0066] References to "one embodiment" or "some embodiments" in the embodiments described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0067] The following detailed embodiments further illustrate the objectives, technical solutions, and beneficial effects of this application. It should be understood that the following are merely specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made based on the technical solutions of this application should be included within the scope of protection of this application.

[0068] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0069] The method provided in this application can be applied to various communication systems, such as Internet of Things (IoT) systems, narrowband Internet of Things (NB-IoT) systems, long-term evolution (LTE) systems, 5th-generation (5G) communication systems / new radio (NR) systems, or new communication systems emerging in future communication development. IoT networks may include, but are not limited to, vehicle-to-everything (V2X) networks. Communication methods in V2X systems can be collectively referred to as vehicle-to-everything (V2X), where X can represent anything. For example, V2X may include: vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication, etc. The method provided in this application embodiment can also be applied to non-terrestrial network (NTN) communication (also known as non-land network communication), or scenarios where NTN and terrestrial network (TN) are integrated.

[0070] The method provided in this application can be applied to wireless local area network (WLAN) systems, such as Wi-Fi. The method provided in this application can also be applied to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 series protocols, such as the 802.11be protocol, the 802.11bn protocol, or next-generation protocols of the 802.11bn protocol, etc., and will not be listed individually.

[0071] The method provided in this application can be applied between two entities in a communication system, such as one entity sending information to or receiving information sent by the other entity. In a wireless communication system, communication devices are included, and these devices can communicate wirelessly using air interface resources. Air interface resources may include at least one of time-domain resources, frequency-domain resources, code resources, and spatial resources; this application does not limit this. For example, the aforementioned two entities may include a network device and a terminal, or may include a chip that can be placed in a network device and a chip that can be placed in a terminal, etc. Of course, as standards or products advance, other types of entities may emerge subsequently; this application does not limit this.

[0072] The basic architecture of the communication system provided in the embodiments of this application is described below. The communication system provided in this application may include one or more network devices and one or more terminals.

[0073] The following explanation uses the system architecture shown in Figure 1 as an example. In Figure 1, the communication system includes a network device 10 and a terminal 20 that communicates with the network device 10.

[0074] It should be noted that the number of network devices and terminals in Figure 1 is merely illustrative and should not be considered as a specific limitation of this application. The terminals and network devices involved in the system architecture will be described in detail below.

[0075] I. Terminal

[0076] The terminal can be a device or module that accesses the aforementioned communication system and has corresponding communication functions. Specifically, the terminal can refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, terminal, wireless communication equipment, user agent, user equipment, or roadside unit (RSU). The terminal may contain communication modules, circuits, or chips that perform corresponding communication functions. The terminal may also be configured with program instructions for performing corresponding communication functions.

[0077] For example, a terminal can be a drone, an Internet of Things (IoT) device, a station (ST) in a wireless local area network (WLAN), a cellular phone, a smartphone, a cordless phone, a wireless data card, a tablet computer, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a laptop computer, a machine type communication (MTC) terminal, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device (also known as a wearable smart device), a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in remote medical care, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in a smart grid, or a wireless terminal in transportation safety. Wireless terminals in smart cities, smart homes, and transportation vehicles with wireless communication capabilities, as well as communication modules, are examples of wireless terminals. Terminals can also be used in 5G systems or next-generation communication systems; this application does not limit the specific application to these applications.

[0078] The embodiments of this application do not limit the device form of the terminal. The device used to implement the functions of the terminal can be the terminal itself; it can also be a device that supports the terminal in implementing the functions, such as a chip system. The device can be installed in the terminal or used in conjunction with the terminal. In the embodiments of this application, the chip system can be composed of chips or can include chips and other discrete devices.

[0079] II. Network Equipment

[0080] The network device can be a device or module located on the network side of the aforementioned communication system and possessing corresponding communication functions. The network device can be a device deployed in a radio access network (RAN) to provide wireless communication functions for terminals. The network device may contain communication modules, circuits, or chips that perform the corresponding communication functions. The network device may also be configured with program instructions for performing the corresponding communication functions and corresponding program instructions.

[0081] In one possible scenario, network equipment can be devices with base station functions, such as evolved NodeBs (eNodeBs), transmitting and receiving points (TRPs), transmitting points (TPs), next-generation NodeBs (gNBs), base stations in future mobile communication systems, integrated access and backhaul (IAB) nodes, and non-terrestrial network equipment, i.e., equipment that can be deployed on high-altitude platforms or satellites. Network equipment can also be transmitting and receiving points (TRPs), base stations, and various forms of control nodes, such as network controllers and wireless controllers. Specifically, network equipment can be various forms of macro base stations, micro base stations (also known as small cells) in heterogeneous network (HetNet) scenarios, relay stations, access points (APs), radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node Bs, or home node Bs (HNBs)), baseband units (BBUs) and remote radio units (RRUs) in distributed base station scenarios, transmitting and receiving points (TRPs), transmitting points (TPs), mobile switching centers, etc., and can also be base station antenna panels. Control nodes can connect to multiple base stations and configure resources for multiple terminals covered by multiple base stations. In systems employing different wireless access technologies, the names of devices with base station functions may differ. For example, it could be a gNB in ​​5G, or a network-side device in a network after 5G, or a network device in a future evolved public land mobile network (PLMN) network, or a device that performs base station functions in device-to-device (D2D) communication, machine-to-machine (M2M) communication, or vehicle-to-everything (V2X) communication, etc. This application does not limit the specific name of the network device.Network equipment can also be open RAN (O-RAN or ORAN), baseband pool (BBU pool) and RRU under cloud radio access network (CRAN), etc.

[0082] In another possible scenario, multiple network devices collaborate to assist terminals in achieving wireless access, with each network device performing a portion of the base station's functions. For example, network devices may include a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). CUs and DUs can be separate entities or included in the same network element, such as a baseband unit (BBU). RUs may be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs). Optionally, network devices can be CU nodes, DU nodes, or devices comprising both CU and DU nodes. Furthermore, CUs can be classified as network devices in the access network (RAN) or in the core network (CN), without limitation.

[0083] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0084] In this embodiment, the form of the network device is not limited. The device used to implement the function of the network device can be the network device itself, or it can be a device that supports the network device in implementing the function, such as a chip system. The device can be installed in the network device or used in conjunction with the network device.

[0085] In this embodiment, the terminal and network device can communicate via an air interface link. This air interface link can be categorized into UL (Upper Limit) and DL (Lower Limit) based on the direction of the data transmitted. UL can transmit uplink data from the terminal to the base station, while DL can transmit downlink data from the base station to the terminal.

[0086] To facilitate understanding of the content of this solution, some terms used in the embodiments of this application will be explained below, so that those skilled in the art can understand them. This part is only for the purpose of understanding and should not be regarded as a specific limitation of this application.

[0087] I. Path Loss Estimation

[0088] Path loss estimates are used to calculate the degree of attenuation of a reference signal during propagation due to factors such as distance, environment, and obstacles.

[0089] The reference signal can be used for synchronization (including time synchronization and / or frequency synchronization), performing layer 1 (L1) measurements, performing layer 3 (L3) measurements, activating secondary cells, performing radio link monitoring (RLM), or performing beam failure detection (BFD), among other things. Layer 1 can be a protocol layer with similar functions of providing physical resources for data transmission, such as the physical (PHY) layer; this application does not limit this. Layer 3 can be a protocol layer with similar radio resource management functions, such as the radio resource control (RRC) layer; this application does not limit this.

[0090] In one possible implementation, the reference signal may be a channel state information reference signal (CSI-RS), a synchronization signal and physical broadcast channel block (SSB), a sounding reference signal (SRS), a tracking reference signal (TRS), a phase tracking reference signal (PTRS), a demodulation reference signal (DMRS), or a positioning reference signal (PRS), etc., and this application does not limit it to any particular one.

[0091] In one possible implementation, the reference signal may be a downlink reference signal, which may be a reference signal sent by the network device, such as one or more of TRS, PTRS, CSI-RS, DMRS or SSB.

[0092] II. Control Resource Set (CORESET)

[0093] CORESET is used to indicate the frequency domain location of the physical downlink control channel (PDCCH) and the number of time-domain symbols occupied by the PDCCH in the time domain. The number of time-domain symbols occupied by the PDCCH in the time domain can be 1, 2, or 3.

[0094] Optionally, CORESET may include CORESET0 or a regular CORESET.

[0095] CORESET0 can be used to schedule system information, and can also be used to schedule one or more of the following information in addition to system information: remaining minimum system information (RMSI, also known as SIB1), other system information (OSI, also known as SI message), paging message, or random access message (e.g., second message (Message2), fourth message (Message4), etc.).

[0096] A standard CORESET can be used to schedule broadcast messages.

[0097] III. Search Space (SS) Set

[0098] The search space set is used to indicate the time-domain location of the PDCCH. The configuration information for each search space may include parameters such as the search space identifier and the corresponding control resource set identifier. The search space and control resource set together indicate the time-frequency resources of the PDCCH.

[0099] Optionally, the search space set may include a common search space (CSS) set or a user equipment specific search space (USS) set.

[0100] The CSS is used to transmit cell-level common control information related to the broadcast control channel (BCCH), paging, random access procedures, etc. The CSS is associated with CORESET0.

[0101] The USS is used to transmit terminal-level control information related to the downlink shared channel (DL-SCH) and uplink shared channel (UL-SCH). The USS is associated with a regular CORESET.

[0102] IV. Joint Channel Estimation (JCE)

[0103] JCE (Joint Response Estimation) refers to a network device performing channel estimation using uplink reference signals received over multiple time units, obtaining channel model parameters for those time units, and then demodulating and decoding uplink transmissions over those time units. For network devices, JCE can also be called cross-timeslot channel estimation, cross-transmission channel estimation, or coherent channel estimation. For terminals, JCE can also be called joint transmission, joint transport, DMRS bundling, cross-timeslot transmission, or coherent transmission.

[0104] V. TDW

[0105] TDW can be divided into nominal TDW and actual TDW.

[0106] Certain events may cause the nominal TDW to be interrupted, resulting in the nominal TDW being split into at least two actual TDWs. Such events include at least one of the following: slot format indication (SFI), uplink cancellation indication (UL CI), channel preemption of different priorities, timing adjustment, frequency offset correction, carrier aggregation (CA), or dual-connectivity (DC). Timing adjustment can refer to the terminal adjusting the timing advance (TA) based on a timing advance command (TA command) from the network device, and / or the terminal calculating the TA error based on the downlink reference signal and adjusting the TA if the TA error exceeds a threshold value. This threshold value is predefined or preconfigured, or it is indicated to the terminal by the network device.

[0107] For network devices to perform JCE, the terminal needs to maintain power consistency and phase continuity within a nominal TDW. That is, when an event causes an interruption in the nominal TDW, this event triggers the nominal TDW to split into at least two smaller actual TDWs, each maintaining power consistency and phase continuity. These events can be termed events that prevent the maintenance of power consistency and phase continuity, or events that disrupt power consistency and phase continuity. Once these events occur, the previous actual TDW ends, and a new actual TDW begins. Therefore, the actual window size for JCE is the actual TDW. Different JCEs are performed between different actual TDWs.

[0108] VI. SBFD

[0109] In existing networks, the uplink resources with typical time slot allocations are limited, failing to meet the uplink transmission performance requirements of some scenarios. Furthermore, to avoid increasing cross-link interference between adjacent carriers or frequency bands (such as downlink interference to uplink), the uplink / downlink allocation and format of carriers or frequency bands cannot be arbitrarily changed. Therefore, SBFD (Segment-Based Frequency Divide) is introduced, which converts a portion of the frequency domain resources on downlink time slots or symbols into uplink frequency domain resources (called uplink sub-bands) to increase available uplink resources; these are called SBFD time slots or symbols.

[0110] Furthermore, in the network-side SBFD, cross-link interference from DL to UL is the main source of interference. To reduce uplink and downlink cross-link interference, enabling network devices to better suppress interference and ensure transmission performance, a guard band is configured between the uplink subband and the downlink subband (i.e., frequency domain resources that are still downlink). This guard band typically contains several RBs, which are not used for any uplink or downlink transmission.

[0111] For example, in Figure 2, symbols 1, 2, and 3 can all be referred to as SBFD symbols. On symbol 1, a guard band is set between the frequency domain resources used for uplink transmission and the frequency domain resources used for downlink transmission.

[0112] VII. Type I and Type II Time-Domain Resources

[0113] The first type of time-domain resource refers to SBFD time-domain resources. The corresponding frequency-domain resources for SBFD time-domain resources include uplink and downlink frequency-domain resources. In other words, the frequency-domain resources corresponding to SBFD time-domain resources, including uplink and downlink frequency-domain resources, can refer to the frequency-domain resources within the corresponding frequency band, carrier, or BWP, including both uplink and downlink frequency-domain resources.

[0114] The second category of time-domain resources refers to non-SBFD time-domain resources. The corresponding frequency-domain resources for non-SBFD time-domain resources include uplink or downlink frequency-domain resources. It can be understood that the frequency-domain resources corresponding to non-SBFD time-domain resources, including uplink or downlink frequency-domain resources, can refer to the frequency-domain resources within the frequency band, carrier, or BWP corresponding to SBFD time-domain resources, including both uplink and downlink frequency-domain resources; that is, all of them are both uplink and downlink frequency-domain resources. It can also be understood that flexible resources can be considered as either uplink or downlink resources.

[0115] Optionally, the terms "greater than" and "greater than or equal to" in this application can be substituted for each other, as can "less than" and "less than or equal to". For example, when comparing a measured value with a threshold value, "greater than" can be replaced with "greater than or equal to", and correspondingly, "less than or equal to" can be replaced with "less than".

[0116] Optionally, the terms channel conditions, channel quality, and channel conditions in this application can be interchanged. For example, "good channel conditions" can be replaced with "good channel quality" or "good channel conditions."

[0117] The embodiments of this application are described in detail below. The executing entities involved in the embodiments of this application can be a first communication device and a second communication device. The first communication device or the second communication device can be any two devices capable of communication shown in Figure 1. The specific names of the first communication device and the second communication device are not limited in the embodiments of this application. As an example, the first communication device can be a terminal or a chip or functional module of a terminal, etc., and the second communication device can be a network device or a chip or functional module of a network device, etc. As another example, the first communication device can be a network device or a chip or functional module of a network device, and the second communication device can be a terminal or a chip or functional module of a terminal. As yet another example, the first communication device and the second communication device can be different terminals, etc. Specific forms of the first communication device and the second communication device will not be listed here. For ease of description, the embodiments of this application are described using the first communication device as a terminal and the second communication device as a network device as an example, and this should not be considered a limitation of this application.

[0118] As shown in Figure 3, this application provides a communication method, which includes, but is not limited to, the following steps:

[0119] 301. The network device sends first configuration information, which is used to determine a first resource and a second resource. The downlink transmission power of the first resource is a first transmission power, and the downlink transmission power of the second resource is a second transmission power. The first transmission power is greater than the second transmission power.

[0120] Accordingly, the terminal receives the first configuration information.

[0121] Optionally, the first configuration information may be carried in a radio resource control (RRC) message, a media access control-control element (MAC CE) or downlink control information (DCI).

[0122] Both the first and second resources are used for downlink transmission. Optionally, downlink transmission includes at least one of a physical downlink shared channel (PDSCH), a PDCCH, and a downlink reference signal. The first resource includes time-domain resources and / or frequency-domain resources. The second resource can be used to transmit at least one of a PDSCH, a PDCCH, and a downlink reference signal. The second resource includes time-domain resources and / or frequency-domain resources. Time-domain resources refer to resources that are continuous or discontinuous in the time domain. For example, time-domain resources may include one or more symbols, one or more time slots, one or more subframes, one or more half-frames, or one or more frames. Frequency-domain resources refer to resources that are continuous or discontinuous in the frequency domain. For example, frequency-domain resources may include one or more carriers, one or more subbands, or one or more RBs. Optionally, the time-domain resources and / or frequency-domain resources are time-domain resources, frequency-domain resources, or time-frequency resources.

[0123] Optionally, the transmit power can differ when the downlink transmissions on the first or second resource are of different types. For example, the transmit power of CSI-RS and SSB transmissions on the first resource can be different. Optionally, "first transmit power greater than second transmit power" refers to a comparison of the transmit power of the same type of transmission on the first and second resources. For example, if the downlink transmissions on the first and second resources are both CSI-RS, the corresponding first transmit power is greater than the second transmit power.

[0124] Optionally, the frequency domain resources of the first resource and the second resource can be located in one or more component carriers (CCs). For example, in Figure 4a, the frequency domain resources of the first resource and the second resource are located on the same CC, or in Figure 4b, the frequency domain resources of the first resource and the second resource are located on different CCs. It can be seen that in Figures 4a and 4b, the second resource is located between the first resource and the uplink resource. Optionally, the frequency domain resources of the first resource and the second resource can be located in one frequency band or one BWP. That is, the first resource and the second resource can be located on downlink resources in different frequency domains. In this case, optionally, the time domain resources of the first resource and the second resource are the same.

[0125] Optionally, the first resource and the second resource can be located on downlink resources in different time domains. In this way, the second resource with lower transmission power can meet the power requirements for communication between near-point terminals (i.e., terminals closer to the network device) and the network device, while the first resource with higher transmission power can meet the power requirements for communication between far-point terminals (i.e., terminals farther from the network device) and the network device. Furthermore, the second resource with lower transmission power can be used to power-boost the transmission on the first resource with higher transmission power, ensuring that the transmission on the first resource with higher transmission power is not affected by interference or signal attenuation, thereby enhancing signal quality and system performance. In this case, optionally, the first resource and the second resource may have the same frequency domain resources, or the first resource and the second resource may have different frequency domain resources.

[0126] To improve the accuracy of path loss estimates, the following example illustrates how to improve the accuracy of path loss estimates using the downlink reference signal of the first or second resource.

[0127] Option 1: The network device sends second configuration information, which is used to determine the downlink reference signal for a period. The downlink reference signal for this period is either entirely located on the first resource or entirely on the second resource. The downlink reference signal for this period is used to determine the path loss estimate. How the path loss estimate is determined will be described later; it will not be described here.

[0128] In one possible implementation, in Scheme 1, when the downlink reference signal of the period is the SSB, the entire downlink reference signal of the period is located on the first resource. This ensures that the path loss estimate is accurate. That is, because the original SSB has a specific pattern within a half-frame, and the half-frame is periodic, the original SSB may be distributed on both the first and second resources simultaneously, which would lead to an inaccurate path loss estimate.

[0129] For example, taking the downlink reference signal of the cycle as SSB as an example, the SSB pattern in this scheme and the original SSB pattern are introduced below. For ease of distinction, the SSB pattern in this scheme is referred to as the second pattern, and the original SSB pattern is referred to as the first pattern. This should not be regarded as a limitation of this application.

[0130] There are two ways to ensure that all SSBs are located on the first resource.

[0131] As one possible implementation, the original first pattern is modified to obtain the second pattern. For example, as shown in Figure 5a, the SSBs corresponding to the first pattern are located in the first resource and the second resource. By modifying the first pattern to the second pattern, all the SSBs corresponding to the second pattern are located in the first resource. Optionally, this implementation can be understood as the network device transmitting SSBs according to the second pattern. Correspondingly, the terminal receiving SSBs according to the second pattern.

[0132] As another possible implementation, the first and second resources are configured such that the first pattern guarantees that all SSBs are located in either the first or second resource, or that all SSBs within at least one half-frame are located in either the first or second resource. For example, as shown in Figure 5b, the SSBs corresponding to the first pattern are located in both the first and second resources. The first and second resources are reconfigured so that all SSBs corresponding to the first pattern are located in the first resource. Optionally, this implementation can be understood as follows: the first pattern remains unchanged, and the network device configures the first and second resources such that the first pattern guarantees that all SSBs are located in either the first or second resource, or that all SSBs within at least one half-frame are located in either the first or second resource. In this way, the network device transmits SSBs according to the first pattern. Correspondingly, the terminal receives SSBs according to the first pattern.

[0133] Option 2: The network device sends second configuration information to determine the periodic downlink reference signal. The periodic downlink reference signal is located at both the first and second resources; alternatively, it can be understood that the periodic downlink reference signal may be located at either the first or second resource without specific restriction. The terminal can determine the path loss estimate based on the first measurement and the first transmission power. Alternatively, the terminal can determine the path loss estimate based on the second measurement and the second transmission power. Optionally, the terminal can determine the path loss value based only on the first measurement or only on the second measurement. The first measurement is the measurement of the periodic downlink reference signal located on the first resource, and the second measurement is the measurement of the periodic downlink reference signal located on the second resource. The method for determining the path loss estimate will be described later and will not be repeated here.

[0134] When the downlink reference signal of a period is located in both the first resource and the second resource, the terminal can measure the downlink reference signal of the period located in the first resource to obtain a first measurement value, and / or measure the downlink reference signal of the period located in the second resource to obtain a second measurement value. The terminal needs to determine which measurement value should be used to calculate the path loss estimate. Optionally, the fact that the downlink reference signal of a period is located in both the first resource and the second resource means that the reference signal of the downlink reference signal in different periods or in different time domains is distributed in the first resource and the second resource, or that some periods are located in the first resource and some periods are located in the second resource.

[0135] As one possible implementation, the terminal can determine the path loss estimate based on either the first or second measurement value according to the third configuration information. The third configuration information instructs the terminal to determine the path loss estimate based on either the first or second measurement value. This third configuration information can be carried in an RRC message, MAC CE, or DCI.

[0136] As another possible implementation, the terminal can determine the path loss estimate based on either a first or second measurement value, depending on the relationship between the downlink signal received power and a first threshold value. For example, when the downlink signal received power is greater than the first threshold value, it means the channel conditions are good or the terminal is close to the network equipment. In this case, the terminal can determine the path loss estimate based on a second measurement value of the downlink reference signal with lower transmission power located in the period of the second resource. When the downlink signal received power is less than or equal to the first threshold value, it means the channel conditions are poor or the terminal is far from the network equipment. In this case, the terminal can determine the path loss estimate based on a first measurement value of the downlink reference signal with higher transmission power located in the period of the first resource.

[0137] The downlink received power can be one or more of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), received signal strength indicator (RSSI), signal to interference plus noise ratio (SINR), and signal to noise ratio (SNR). The first threshold value is predefined or preconfigured, or it may be indicated to the terminal by the network device. This application does not impose any restrictions.

[0138] Option 3: The network device sends second configuration information to determine the periodic downlink reference signal. This periodic downlink reference signal is located on both the first and second resources; alternatively, it can be understood that the periodic downlink reference signal may be located on either the first or second resource without specific restrictions. In this way, the terminal can determine a third measurement value based on the second measurement value and the power offset value, and then determine a path loss estimate based on the third measurement value and the first transmission power. Alternatively, the terminal can determine a fourth measurement value based on the first measurement value and the power offset value, and then determine a path loss estimate based on the fourth measurement value and the second transmission power. Here, the second measurement value is the measurement value of the periodic downlink reference signal located on the second resource, and the first measurement value is the measurement value of the periodic downlink reference signal located on the first resource. The method for determining the path loss estimate will be described later and will not be elaborated here.

[0139] Optionally, in Scheme 3, the power offset value is the offset between the first transmission power and the second transmission power.

[0140] Optionally, in Scheme 3, the third measurement value is the sum of the second measurement value and the power offset value, and the fourth measurement value is the difference between the first measurement value and the power offset value.

[0141] When the downlink reference signal of a cycle is located in both the first resource and the second resource, the terminal needs to determine which transmit power to use to calculate the path loss estimate.

[0142] As one possible implementation, when the downlink reference signal of the first measurement period is located in the first resource, the terminal can determine the path loss estimate based on the first transmit power; or, when the downlink reference signal of the first measurement period is located in the second resource, the terminal can determine the path loss estimate based on the second transmit power. In other words, when the downlink reference signal of the first measurement period is located in the first resource, the terminal should use the transmit power corresponding to the first resource to determine the path loss estimate. When the downlink reference signal of the first measurement period is located in the second resource, the terminal should use the transmit power corresponding to the second resource to determine the path loss estimate. That is, the transmit power of the resource where the downlink reference signal of the first measurement period is located determines the transmit power used for the path loss estimate. This avoids inconsistencies between the transmit power corresponding to the downlink reference signal of the measurement period and the transmit power corresponding to the determined path loss estimate, thus avoiding power offset values. This makes the determined path loss estimate accurate, thereby improving power control accuracy and communication performance.

[0143] As another possible implementation, the terminal can determine the path loss estimate based on either the first or second transmit power according to the fourth configuration information. The fourth configuration information instructs the terminal to determine the path loss estimate based on either the first or second measurement. This fourth configuration information can be carried in an RRC message, MAC CE, or DCI.

[0144] As another possible implementation, the terminal can determine the path loss estimate based on either the first transmission power or the second transmission power by considering the relationship between the downlink signal received power and the first threshold. For example, if the downlink signal received power is greater than or equal to the first threshold, it means the terminal is relatively close to the network device, and the terminal can determine the path loss estimate based on the second transmission power. If the downlink signal received power is less than or equal to the first threshold, it means the terminal is relatively far from the network device, and the terminal can determine the path loss estimate based on the first transmission power.

[0145] Optionally, when determining a path loss estimate based on a first transmit power, the path loss estimate is determined based on the filtering result of a first measurement and a third measurement, and the first transmit power. Optionally, for a first measurement of a downlink reference signal located in the period of a first resource, the filtering result is used; for a second measurement of a downlink reference signal located in the period of a second resource, a third measurement is determined based on the second measurement and a power offset value, and the third measurement is used to determine the filtering result.

[0146] Optionally, when determining the path loss estimate based on the second transmit power, the path loss estimate is determined based on the filtering result of the second and fourth measurements, and the second transmit power. Optionally, for the second measurement of the downlink reference signal located in the period of the second resource, the filtering result is used; for the first measurement of the downlink reference signal located in the period of the first resource, the fourth measurement is determined based on the first measurement and the power offset value, and the fourth measurement is used to determine the filtering result.

[0147] Option 4: The network device sends second configuration information to determine the periodic downlink reference signal. This periodic downlink reference signal is located at both the first and second resources; alternatively, it can be understood that the periodic downlink reference signal may be located at either the first or second resource without specific restrictions. In this way, the terminal can filter multiple path loss values ​​to determine the path loss estimate. These multiple path loss values ​​include the path loss value determined based on a first measurement value and the path loss value determined based on a second measurement value. The first measurement value is the measurement of the periodic downlink reference signal located on the first resource, and the second measurement value is the measurement of the periodic downlink reference signal located on the second resource. The method for determining the path loss estimate will be described later and will not be elaborated here.

[0148] Optionally, in Scheme 1, Scheme 2, Scheme 3 and Scheme 4 above, the periodic downlink reference signal can also be an aperiodic downlink reference signal or a semi-static downlink reference signal.

[0149] The following section will introduce the method for determining the path loss estimate based on the periodic downlink reference signal in Scheme 1.

[0150] When all downlink reference signals for a given period are located within the first resource, the terminal can measure the downlink reference signals within the first resource to obtain a first measured value, and then perform layer 3 filtering on the first measured value to obtain a first filtered result. Based on the first filtered result and the first transmit power, the terminal can determine a path loss estimate. The path loss estimate is equal to the first transmit power minus the first filtered result.

[0151] When all downlink reference signals for a given period are located within the second resource, the terminal can measure the downlink reference signals within the second resource to obtain a second measurement value, and then perform layer 3 filtering on the second measurement value to obtain a second filtering result. Based on this second filtering result and the second transmit power, the terminal can determine a path loss estimate. The path loss estimate is equal to the second transmit power minus the second filtering result.

[0152] The filtering result of this application after layer 3 filtering (e.g., the first filtering result or the second filtering result, etc.) can satisfy the following condition: F n = (1-a)*F n-1 +a*M n

[0153] Among them, F n F is the filtered result after layer 3 filtering. n-1 M is the result of the previous filtering. n For the measured value (e.g., the first or second measured value), a = 1 / 2 (ki / 4) ki is a predefined value or a value configured for the network device.

[0154] The following section will introduce the determination of path loss estimates based on the periodic downlink reference signal in Scheme 2.

[0155] When the downlink reference signal of a period is located in both the first resource and the second resource, and the terminal determines to use the first measurement value to calculate the path loss estimate, the terminal performs layer 3 filtering on the first measurement value to obtain the first filtering result, and determines the path loss estimate based on the first filtering result and the first transmission power. The path loss estimate is equal to the first transmission power minus the first filtering result.

[0156] When the terminal determines to use the second measurement value to calculate the path loss estimate, the terminal performs Layer 3 filtering on the second measurement value to obtain the second filtering result, and determines the path loss estimate based on the second filtering result and the second transmission power. The path loss estimate is equal to the second transmission power minus the second filtering result.

[0157] Optionally, the terminal determines to use a first measurement value or a second measurement value to calculate the path loss estimate, which means that the terminal determines to calculate the path loss estimate based on the downlink reference signal of the period of the first resource or the downlink reference signal of the period of the second resource.

[0158] The filtering result of this application after layer 3 filtering (e.g., the first filtering result or the second filtering result, etc.) can satisfy the following condition: F n = (1-a)*F n-1 +a*M n

[0159] Among them, F n F is the filtered result after layer 3 filtering. n-1 M is the result of the previous filtering. n For the measured value (e.g., the first or second measured value), a = 1 / 2 (ki / 4) ki is a predefined value or a value configured for the network device.

[0160] Next, we will introduce the path loss estimate determined by the downlink reference signal based on the period in Scheme 3.

[0161] When the downlink reference signal of a period is located in both the first resource and the second resource, and the terminal determines to use the first transmit power to calculate the path loss estimate, the terminal measures the downlink reference signal of the period located in the first resource to obtain a first measured value, and / or measures the downlink reference signal of the period located in the second resource to obtain a second measured value. The terminal can perform Layer 3 filtering on the first measured value to obtain a first filtered result, and determine the path loss estimate based on the first filtered result and the first transmit power, for example, path loss estimate = first transmit power - first filtered result. And / or, the terminal can also add the second measured value to the power offset value to obtain a third measured value, and perform Layer 3 filtering on the third measured value to obtain a third filtered result, and determine the path loss estimate based on the third filtered result and the first transmit power, for example, path loss estimate = first transmit power - third filtered result. That is, when it is determined that the path loss estimate is determined based on the first transmit power, the first measured value and / or the third measured value are used to determine the filtering result.

[0162] When the terminal determines to use the second transmit power to calculate the path loss estimate, the terminal measures the downlink reference signal in the period of the first resource to obtain a first measured value, and / or measures the downlink reference signal in the period of the second resource to obtain a second measured value. The terminal can perform Layer 3 filtering on the second measured value to obtain a first filtered result, and determine the path loss estimate based on the second filtered result and the second transmit power. For example, the path loss estimate = second transmit power minus - second filtered result. And / or, the terminal can also subtract a power offset value from the first measured value to obtain a fourth measured value, and perform Layer 3 filtering on the fourth measured value to obtain a fourth filtered result. The terminal determines the path loss estimate based on the fourth filtered result and the second transmit power. For example, the path loss estimate = second transmit power - fourth filtered result. That is, when it is determined that the path loss estimate is determined based on the second transmit power, the second measured value and / or the fourth measured value are used to determine the filtering result.

[0163] The filtering results of this application after layer 3 filtering (e.g., the first filtering result, the second filtering result, the third filtering result, or the fourth filtering result, etc.) can satisfy the following conditions: F n = (1-a)*F n-1 +a*M n

[0164] Among them, F n F is the filtered result after layer 3 filtering. n-1 M is the result of the previous filtering. n For this measurement, a = 1 / 2 (ki / 4) ki is a predefined value or a value configured by the network device. Optionally, when the terminal determines to use the first transmit power to calculate the path loss estimate, M... n This is either the first measurement value or the third measurement value (i.e., the second measurement value plus the power offset value). When the terminal determines to use the second transmit power to calculate the path loss estimate, M... n This is the second or fourth measurement value (i.e., the value obtained by subtracting the power offset value from the first measurement value).

[0165] The following section will introduce the path loss estimate determined by the periodic downlink reference signal in Scheme 4.

[0166] When a downlink reference signal for a period is located in both a first resource and a second resource, the terminal measures the downlink reference signal located in the first resource to obtain a first measurement value, and determines a path loss value based on the first measurement value and a first transmission power. The terminal also measures the downlink reference signal located in the second resource to obtain a second measurement value, and determines a path loss value based on the second measurement value and a second transmission power. Optionally, the terminal determines a path loss value based on the downlink reference signal for each period and the corresponding transmission power. For example, if the downlink reference signal for a period is located in the first resource, the terminal determines the path loss value of that downlink reference signal based on the first measurement value and the first transmission power. Thus, the terminal filters multiple path loss values ​​(including the path loss value determined by the first measurement value and the second measurement value) to determine a path loss estimate. That is, the terminal determines the path loss estimate for the current filtering based on the previously filtered path loss estimate and the path loss value measured this time.

[0167] Wherein, the path loss value measured in this instance = the transmit power of the downlink reference signal - the measured value of the downlink reference signal. Optionally, if the downlink reference signal measured in this instance is located in the first resource, then the transmit power of the downlink reference signal is the first transmit power; if the downlink reference signal measured in this instance is located in the second resource, then the transmit power of the downlink reference signal is the second transmit power.

[0168] The path loss estimate for this filtering in this application can be calculated using the following formula: PL n =(1-a)*PL n-1 +a*N n

[0169] Among them, PL n PL is the path loss estimate for this filtering process. n-1 N represents the path loss estimate after the previous filtering. n The road loss value measured in this study is a = 1 / 2 (ki / 4) ki is a predefined value or a value configured for the network device.

[0170] The path loss value determined by the first measurement is equal to the first transmission power minus the first measurement value, and the path loss value determined by the second measurement is equal to the second transmission power minus the second measurement value.

[0171] Optionally, in Scheme 1, Scheme 2, Scheme 3 and Scheme 4 above, the second configuration information can be carried in the RRC message, MAC CE or DCI.

[0172] In one possible implementation, in Schemes 2, 3, and 4 above, when the periodic reference signal is an SSB, the network device can send indication information indicating that the periodic reference signal is located in the first resource or the second resource. This indication information ensures that when the terminal determines the PRACH transmission opportunity (physical random access channel occasion, RO) selection and coarse beam alignment during cell search based on measurements of multiple SSBs, the impact of different SSB transmit powers can be considered, thereby guaranteeing the accuracy of RO selection and coarse beam alignment during cell search.

[0173] Optionally, the indication information can be carried in a system message. The system message can be a master information block (MIB). Optionally, the indication information can be carried using free bits in the MIB. Optionally, a 1-bit indication information of 0 indicates that the SSB is located in the first resource, and a 1 indicates that the SSB is located in the second resource. Alternatively, a 1-bit indication information of 0 indicates that the SSB is located in the second resource, and a 1 indicates that the SSB is located in the first resource.

[0174] Optionally, in Scheme 1, Scheme 2, Scheme 3 and Scheme 4 above, after the terminal determines the path loss estimate, the terminal can determine the third transmission power based on the path loss estimate, and then perform uplink transmission based on the third transmission power.

[0175] The following section, using the downlink reference signal of the cycle on the first or second resource, will introduce which specific resource the time-frequency resource determined by the control resource set and the search space set is located on.

[0176] The network device can send fifth configuration information, which is used to configure the control resource set and the search space set, wherein all time-frequency resources determined by the control resource set and the search space set are located in the first resource, or all are located in the second resource.

[0177] Example 1: The control resource set is a regular CORESET, and the search space set is a USS. All time-frequency resources determined by the regular CORESET and USS are located in the first resource, or all in the second resource. Thus, when all time-frequency resources determined by the regular CORESET and USS are located in the first resource, regardless of the terminal's distance from the network device, the terminal can receive the corresponding downlink signal on the first resource, satisfying the coverage requirements of all terminals. Optionally, the first resource can be used for transmission with terminals farther from the network device, or for transmission with terminals at any location within the cell. When all time-frequency resources determined by the regular CORESET and USS are located in the second resource, terminals closer to the network device (i.e., nearby terminals) can receive the corresponding downlink signal on the second resource, satisfying the coverage requirements of nearby terminals and reducing interference to other terminals. Especially in SBFD scenarios, it can reduce interference between downlink subband transmission and uplink subband transmission.

[0178] Example 2: The control resource set is CORESET0, and the search space set is CSS. All time-frequency resources determined by CORESET0 and CSS are located in the first resource, or all are located in the second resource. Thus, when all time-frequency resources determined by CORESET0 and CSS are located in the first resource, regardless of the terminal's distance from the network device, the terminal can receive the corresponding downlink signal on the first resource, satisfying the coverage requirements of all terminals. When all time-frequency resources determined by CORESET0 and CSS are located in the second resource, terminals closer to the network device (i.e., nearby terminals) can receive the corresponding downlink signal on the second resource, satisfying the coverage requirements of nearby terminals. Optionally, CSS is Search Space 0.

[0179] Optionally, the fifth configuration information can be carried in an RRC message, MAC CE, or DCI.

[0180] The following explains how the comparison between the measured value and the threshold value of the downlink reference signal based on the period determines whether a radio link failure, beam failure, request message, random access type, or random access carrier has occurred.

[0181] The network device sends a sixth configuration information, which is used to determine the periodic downlink reference signal. Thus, the terminal can use the sixth configuration information to determine, based on a comparison between the measured value of the periodic downlink reference signal and a threshold value, whether a radio link failure has occurred, whether a beam failure has occurred, whether a request message has been sent, the random access type, or one or more random access carriers.

[0182] Optionally, the threshold values ​​used to determine whether a wireless link failure, beam failure, request information transmission, random access type, or random access carrier has occurred can be configured separately. That is, the determination of whether a wireless link failure, beam failure, request information transmission, random access type, or random access carrier has occurred is based on their respective threshold values.

[0183] Optionally, the sixth configuration information can be carried in an RRC message, MAC CE, or DCI.

[0184] Optionally, the aforementioned request information is used to request the retransmission of message 3, and the request information may be carried in the Physical Random Access Channel (PRACH). Optionally, the terminal requests the retransmission of message 3 by using a specific random access preamble and / or by sending a PRACH on a specific random access resource.

[0185] Optionally, the above-mentioned random access type can be two-step random access or four-step random access.

[0186] Optionally, the aforementioned random access carrier can be NUL or SUL.

[0187] The following examples illustrate how the comparison between the measured value and the threshold value of the terminal's periodic downlink reference signal determines whether a wireless link failure, beam failure, request information transmission, random access type, or random access carrier has occurred.

[0188] Optionally, the terminal compares the measured value of the periodic downlink reference signal with a threshold value, specifically including: the terminal comparing the measured value of the periodic downlink reference signal located on the first resource with a second threshold value, and / or, the terminal comparing the measured value of the periodic downlink reference signal located on the second resource with a third threshold value, wherein the second threshold value and the third threshold value are determined separately. Alternatively, the terminal compares the measured value of the periodic downlink reference signal located on the first resource with a fourth threshold value, and / or, the terminal compares the measured value of the periodic downlink reference signal located on the second resource plus a power offset value with the fourth threshold value. Alternatively, the terminal compares the measured value of the periodic downlink reference signal located on the first resource minus a power offset value with a fifth threshold value, and / or, the terminal compares the measured value of the periodic downlink reference signal located on the second resource with the fifth threshold value.

[0189] Optionally, the second threshold value and the fourth threshold value are the same. Optionally, the third threshold value and the fifth threshold value are the same. The second threshold value is predefined or preconfigured, or the second threshold value is indicated to the terminal by the network device. The third threshold value is predefined or preconfigured, or the third threshold value is indicated to the terminal by the network device. The fourth threshold value is predefined or preconfigured, or the fourth threshold value is indicated to the terminal by the network device. The fifth threshold value is predefined or preconfigured, or the fifth threshold value is indicated to the terminal by the network device. Optionally, the second threshold value or the fourth threshold value can be determined based on the third threshold value or the fifth threshold value and a power offset value. For example, the second threshold value or the fourth threshold value is equal to the sum of the third threshold value or the fifth threshold value and the power offset value. Optionally, the third threshold value or the fifth threshold value can be determined based on the second threshold value or the fourth threshold value and a power offset value. For example, the third threshold value or the fifth threshold value is equal to the difference between the second threshold value or the fourth threshold value and the power offset value. This application is not restricted.

[0190] Optionally, the second threshold value, and / or the third threshold value, and / or the fourth threshold value, and / or the fifth threshold value corresponding to different types of downlink transmissions can be different.

[0191] In other words, the comparison relationships listed above can determine whether a wireless link failure has occurred, whether a beam failure has occurred, whether a request message has been sent, the random access type, or one or more of the random access carriers.

[0192] Example 1: When the measured value of the downlink reference signal for a period on the first resource is greater than the second threshold, it means the channel condition is relatively good. The terminal can then determine that there has been no radio link failure, no beam failure, no request message has been sent, the random access type is two-step random access, or the random access carrier is NUL, or one or more of these conditions. When the measured value of the downlink reference signal for a period on the first resource is less than or equal to the second threshold, it means the channel condition is relatively poor. The terminal can then determine that there has been a radio link failure, beam failure, a request message has been sent, the random access type is four-step random access, or the random access carrier is SUL, or one or more of these conditions.

[0193] Example 2: When the measured value of the downlink reference signal for a period on the second resource is greater than the third threshold, it means the channel condition is relatively good. The terminal can then determine that there has been no radio link failure, no beam failure, no request message has been sent, the random access type is two-step random access, or the random access carrier is NUL, or one or more of these conditions. When the measured value of the downlink reference signal for a period on the second resource is less than or equal to the third threshold, it means the channel condition is relatively poor. The terminal can then determine that there has been a radio link failure, beam failure, a request message has been sent, the random access type is four-step random access, or the random access carrier is SUL, or one or more of these conditions.

[0194] Example 3: When the measured value of the downlink reference signal for a period on the second resource plus the power offset value is greater than the fourth threshold, it means the channel condition is relatively good. The terminal can then determine that there has been no radio link failure, no beam failure, no request information has been sent, the random access type is two-step random access, or the random access carrier is NUL, or one or more of these conditions. Conversely, when the measured value of the downlink reference signal for a period on the second resource plus the power offset value is less than or equal to the fourth threshold, it means the channel condition is relatively poor. The terminal can then determine that there has been a radio link failure, beam failure, a request information has been sent, the random access type is four-step random access, or the random access carrier is SUL, or one or more of these conditions.

[0195] Example 4: When the measured value of the downlink reference signal for a period on the first resource minus the power offset value is greater than the fifth threshold, it means the channel condition is relatively good. The terminal can then determine that there has been no radio link failure, no beam failure, no request information has been sent, the random access type is two-step random access, or the random access carrier is NUL, or one or more of these conditions. Conversely, when the measured value of the downlink reference signal for a period on the first resource minus the power offset value is less than or equal to the fifth threshold, it means the channel condition is relatively poor. The terminal can then determine that there has been a radio link failure, beam failure, a request information has been sent, the random access type is four-step random access, or the random access carrier is SUL, or one or more of these conditions.

[0196] The following explains how to determine whether a terminal is far from or close to a network device.

[0197] Optionally, the distance of the terminal from the network device (far or near), or the channel condition (good or poor), can be determined based on the comparison between the downlink reference signal measurement and a threshold value. For example, a terminal closer to the network device or with better channel quality refers to a terminal whose downlink reference signal measurement is greater than the threshold value, while a terminal farther from the network device or with poor channel quality refers to a terminal whose downlink reference signal measurement is less than or equal to the threshold value. The threshold value can be configured by the network device. Similarly to the above explanation of "the comparison between the terminal's periodic downlink reference signal measurement and the threshold value," different threshold values ​​can be configured for downlink reference signals on different resources. The measured value of the downlink reference signal should be compared with the threshold value corresponding to the resource where the reference signal is located.

[0198] The following explains how the terminal performs differential reporting.

[0199] The network device sends seventh configuration information to determine the periodic downlink reference signal. This allows the terminal to differentially report measurements of multiple downlink reference signals, which are downlink reference signals within the periodic downlink reference signal set. Specifically, the terminal can perform differential reporting based on a third and / or fourth measurement value plus a power offset value. The third measurement value is the downlink reference signal located on a first resource, and the fourth measurement value is the downlink reference signal located on a second resource. Differential reporting can be understood as reporting the difference between the highest and lowest measurement values ​​for the remaining measurements, except for the highest measurement value which is reported directly. Optionally, the highest measurement value is reported using 7 bits in a 1dB step within the range of [-140, -44]dBm, and the differences between the remaining measurements and the highest measurement value are reported using 4 bits in a 2dB step.

[0200] Optionally, when multiple downlink reference signals for the measurement value to be reported are located in the first resource and the second resource, or when the downlink reference signal with the highest measurement value among the multiple downlink reference signals for the measurement value to be reported is located in the first resource, the above differential reporting method is applied. Optionally, when all multiple downlink reference signals for the measurement value to be reported are located in the second resource, or when the downlink reference signal with the highest measurement value among the multiple downlink reference signals for the measurement value to be reported is located in the second resource, the terminal can directly perform differential reporting based on the measurement values ​​of the multiple downlink reference signals.

[0201] Example 1: Among the M measurements (i.e., the third measurement) to be reported by the terminal, there are multiple periodic downlink reference signals located on the first resource, where M is an integer greater than 1. The terminal can report the M measurements differentially. For example, the M measurements include measurement 1, measurement 2, and measurement 3. The terminal determines the largest measurement among measurement 1, measurement 2, and measurement 3 (e.g., measurement 2). The terminal then determines the difference between the largest measurement and each of the other M measurements, i.e., the value after subtracting measurement 1 from measurement 2 and the value after subtracting measurement 3 from measurement 2. In this way, the terminal can report measurement 2, the value after subtracting measurement 1 from measurement 2, and the value after subtracting measurement 3 from measurement 2.

[0202] Example 2: Among the N measurement values ​​(i.e., the fourth measurement value) to be reported by the terminal, there are multiple periodic downlink reference signals located on the second resource, where N is an integer greater than 1. The terminal can report the N measurement values ​​differentially. For example, the N measurement values ​​include measurement value 1, measurement value 2, and measurement value 3. The terminal determines the largest measurement value among measurement value 1, measurement value 2, and measurement value 3 (e.g., measurement value 1). The terminal then determines the difference between the largest measurement value and each of the N measurement values ​​excluding the largest measurement value, that is, the value after subtracting measurement value 2 from measurement value 1 and the value after subtracting measurement value 3 from measurement value 1. In this way, the terminal can report measurement value 1, the value after subtracting measurement value 2 from measurement value 1, and the value after subtracting measurement value 3 from measurement value 1.

[0203] Example 3: Among the multiple measurements to be reported by the terminal, there are M measurements of downlink reference signals for a period located on the first resource (i.e., the third measurement) and N measurements of downlink reference signals for a period located on the second resource (i.e., the fourth measurement), where M is an integer greater than or equal to 1 and N is an integer greater than or equal to 1. The terminal can report multiple measurements differentially. For example, the M measurements include measurement value 1 and measurement value 2, and the N measurements include measurement value 3 and measurement value 4. The terminal determines the largest measurement value among measurement value 1, measurement value 2, measurement value 3, and measurement value 4 (e.g., measurement value 1), and adds a power offset value to measurement value 3 and measurement value 4 respectively, to obtain the value of measurement value 3 plus the power offset value (i.e., measurement value 5) and the value of measurement value 4 plus the power offset value (i.e., measurement value 6). The terminal can determine the difference between the maximum measured value and the values ​​other than the maximum among M measured values, as well as the difference between the maximum measured value and the values ​​after adding the power offset value to each of the N measured values. Specifically, it can determine the value after subtracting measured value 2 from measured value 1, the value after subtracting measured value 5 from measured value 1, and the value after subtracting measured value 6 from measured value 1, and the values ​​after subtracting measured value 1 from measured value 2 and measured value 5. Thus, the terminal can report the values ​​of measured value 1, the value after subtracting measured value 2 from measured value 1, the value after subtracting measured value 5 from measured value 1, and the value after subtracting measured value 6 from measured value 1.

[0204] Alternatively, the seventh configuration information can be carried in an RRC message, MAC CE, or DCI.

[0205] Optionally, the configuration information (such as the first configuration information, second configuration information, third configuration information, fourth configuration information, fifth configuration information, sixth configuration information, or seventh configuration information mentioned above) or indication information mentioned in the embodiments of this application can be carried in RRC signaling, MAC CE, or DCI.

[0206] Currently, when the control channel and at least two data channels overlap in the time domain resources, the terminal can multiplex the control information contained in the control channel onto the data channel with the smallest index among the at least two data channels. However, when at least two data channels are located in SBFD time domain resources and non-SBFD time domain resources, uplink transmission on SBFD time domain resources is more susceptible to interference than uplink transmission on non-SBFD time domain resources, leading to a decrease in transmission performance. Therefore, how to reduce interference and improve transmission performance is an urgent problem to be solved. Based on this, this application provides the embodiment shown in FIG6 to solve this problem.

[0207] As shown in Figure 6, another communication method provided in this application embodiment is included, which includes but is not limited to the following steps:

[0208] 601. The network device sends first information, which is used to identify a first type of time domain resource and a second type of time domain resource.

[0209] Accordingly, the terminal can receive the first information.

[0210] The first piece of information can be carried in an RRC message, MAC CE, or DCI. The first and second types of time-domain resources are described above and will not be repeated here.

[0211] 602. When the first control channel overlaps with at least two data channels located in different time-domain resources, if the different time-domain resources include first-type time-domain resources and second-type time-domain resources, the terminal multiplexes the control information contained in the first control channel onto the data channel located in the second-type time-domain resources. Optionally, among the at least two data channels located in different time-domain resources, at least one data channel is located in the first-type time-domain resources, and at least one data channel is located in the second-type time-domain resources.

[0212] Optionally, the control channel can carry control information. The control channel can be a physical uplink control channel (PUCCH). For example, a control channel can be a PUCCH carrying hybrid automatic repeat request acknowledge (HARQ-ACK) and / or CSI information. HARQ-ACK is used to acknowledge the success or failure of data transmission. CSI information is used to provide channel state information. PUCCH is just one example of a control channel; in different systems and scenarios, the control channel may have different names, and this application does not limit this. Optionally, the data channel can carry data information. The data channel can be a physical downlink shared channel (PUSCH). PUSCH is just one example of a data channel; in different systems and scenarios, the data channel may have different names, and this application does not limit this.

[0213] Optionally, the terminal multiplexes the control information contained in the first control channel onto a data channel located in the second type of time-domain resources, including: the terminal can multiplex the control information contained in the first control channel onto the data channel with the smallest index located in the second type of time-domain resources. The smallest index refers to the earliest start position in the time domain. For example, in Figure 7, the control information contained in the first control channel is multiplexed onto the data channel with the smallest index located in the second type of time-domain resources.

[0214] As can be seen, based on the method described in Figure 6, the terminal can receive the first information to learn about the first and second types of time-domain resources configured by the network device. When the transmitted first control channel overlaps with at least two data channels located on different time-domain resources, considering that uplink transmission on the first type of time-domain resource may be interfered with by downlink transmission on adjacent downlink resources (i.e., uplink transmission on the first type of time-domain resource is more susceptible to interference than uplink transmission on the second type of time-domain resource, leading to a decrease in transmission performance), the terminal preferentially selects to multiplex the control information contained in the first control channel onto the data channel located on the second type of time-domain resource. This avoids cross-link interference from DL to UL, ensuring transmission performance and the reliability of the first control channel.

[0215] Currently, to enable DMRS bonding in network devices and improve uplink transmission performance, it is necessary to ensure power consistency and phase continuity between the bonded DMRS transmissions. However, when performing uplink transmission on SBFD time-domain resources, higher uplink transmit power is required to resist cross-link interference from DL to UL and ensure uplink transmission performance. This leads to inconsistencies in uplink transmit power between different SBFD time-domain resources, thereby disrupting power consistency and phase continuity, and preventing DMRS bonding from functioning correctly. Therefore, how to ensure the proper functioning of DMRS bonding is a problem that urgently needs to be solved. Based on this, this application provides the embodiment shown in Figure 8 to solve this problem.

[0216] As shown in Figure 8, another communication method provided in an embodiment of this application is included, which includes, but is not limited to, the following steps:

[0217] 801. The network device sends a second message, which enables the demodulation reference signal (DMRS) bundling.

[0218] The second information can be carried in the RRC message, MAC CE, or DCI. This second information enables DMRS bundling and can be understood as instructing the terminal to perform joint channel estimation.

[0219] 802. The terminal determines one or more actual TDWs from the nominal TDW based on a first event, the nominal TDW being used for DMRS bundling, the first event including one or more of the following: any two consecutive uplink transmissions within the nominal TDW are respectively located on a first type of time domain resource and a second type of time domain resource; or, any two consecutive uplink transmissions within the nominal TDW have different transmit powers; or, any two consecutive uplink transmissions within the nominal TDW have different power parameters.

[0220] As can be seen, based on the method described in Figure 8, the terminal can receive the second information to determine that DMRS bundling is enabled. Thus, the terminal can determine one or more actual TDWs from the nominal TDWs used for DMRS bundling based on a first event. The first event includes one or more of the following: any two consecutive uplink transmissions within the nominal TDW are located on first-type time-domain resources and second-type time-domain resources, respectively; or, any two consecutive uplink transmissions within the nominal TDW have different transmit powers; or, any two consecutive uplink transmissions within the nominal TDW have different power parameters. That is, the first event is an event where power consistency and phase continuity cannot be maintained. In other words, the terminal needs to use the boundary point of different transmit powers between any two consecutive uplink transmissions within the nominal TDW (e.g., the boundary point between second-type and first-type time-domain resources) as the first event, and determine one or more actual TDWs from the nominal TDW based on the first event. This clarifies the time-domain range for DMRS bundling, better ensures the smooth implementation of DMRS bundling, and thus improves the channel estimation performance brought about by DMRS bundling.

[0221] Currently, to ensure transmission performance, network devices configure appropriate numbers and locations of DMRS for uplink transmissions of terminal devices. Terminals can send uplink transmissions and DMRS, and network devices perform channel estimation and decoding of the uplink transmissions based on the received DMRS. However, uplink transmissions on SBFD time-domain resources are more susceptible to interference, which can lead to inaccurate decoding of uplink transmissions on SBFD time-domain resources by network devices, resulting in degraded transmission performance. Therefore, improving the accuracy of DMRS decoding on Type I time-domain resources by network devices is a pressing issue. Based on this, this application provides the embodiment shown in Figure 9 to address this problem.

[0222] As shown in Figure 9, another communication method provided in an embodiment of this application is included, which includes, but is not limited to, the following steps:

[0223] Referring to Figure 9, which is a flowchart illustrating another communication method provided in an embodiment of this application, the method includes, but is not limited to, the following steps:

[0224] 901. The network device sends third information, which is used to determine the first type of time domain resources and the second type of time domain resources.

[0225] Accordingly, the terminal receives third information.

[0226] The third information can be carried in RRC messages, MAC CE, or DCI.

[0227] 902. The network device sends the fourth and fifth messages, or sends the sixth and seventh messages.

[0228] Specifically, the fourth information is used to determine the DMRS location of uplink transmission on the first type of time domain resource, and the fifth information is used to determine the DMRS location of uplink transmission on the second type of time domain resource. The sixth information is used to determine the first DMRS location of uplink transmission on the first type of time domain resource and the second type of time domain resource, and the seventh information is used to determine the second DMRS location of uplink transmission on the first type of time domain resource. For example, as shown in Figure 10, the DMRS corresponding to the first DMRS location is located on both the first and second type of time domain resources, and the DMRS corresponding to the second DMRS location is located on the first type of time domain resource.

[0229] Optionally, the fourth, fifth, sixth, or seventh information can be carried in an RRC message, MAC CE, or DCI. The fourth and fifth information can be carried in the same or different signaling messages. The sixth and seventh information can be carried in the same or different signaling messages.

[0230] In other words, the fourth information used to determine the DMRS location can be understood as: the fourth information is used to determine the number and time-domain location of the DMRS used for uplink transmission in the first type of time-domain resources. The fifth information used to determine the DMRS location can be understood as: the fifth information is used to determine the number and time-domain location of the DMRS used for uplink transmission in the second type of time-domain resources. Optionally, the DMRS location includes the location of the preceding DMRS and the location of the supplementary DMRS. Optionally, the preceding DMRS can be understood as the DMRS corresponding to l0, and the supplementary DMRS can be understood as the DMRS corresponding to locations other than l0.

[0231] Optionally, the number of time-domain resources in the first type of time-domain resources used for transmitting the DMRS for uplink transmission is greater than the number of time-domain resources in the second type of time-domain resources used for transmitting the DMRS for uplink transmission. For example, taking symbols as an example, the number of symbols in the first type of time-domain resources used for transmitting the DMRS for uplink transmission is greater than the number of symbols in the second type of time-domain resources used for transmitting the DMRS for uplink transmission.

[0232] Optionally, the sixth information is used to determine the first DMRS location for uplink transmission on the first type of time domain resources and the second type of time domain resources, and the seventh information is used to determine the second DMRS location for uplink transmission on the first type of time domain resources. In other words, the number and location of DMRSs on the first type of time domain resources are determined according to the sixth and seventh information, and the number and location of DMRSs on the second type of time domain resources are determined according to the sixth and seventh information. Optionally, the DMRS location determined according to the sixth information includes the location of the preceding DMRS and / or the location of the additional DMRS. Optionally, the DMRS location determined according to the sixth information includes the location of the additional DMRS. Optionally, the DMRS location can be understood as the number and time domain location of the time domain resources used to transmit the DMRS for uplink transmission.

[0233] In one feasible embodiment, the network device may also send an eighth message for determining the DMRS location of uplink transmissions on the first and second type time domain resources. Optionally, the eighth message may be carried in an RRC message, MAC CE, or DCI.

[0234] Optionally, the DMRS location includes the location of the pre-amplifier DMRS and the location of the supplementary DMRS. Optionally, the DMRS location for uplink transmission of the first type of time-domain resources is the location of the pre-amplifier pilot and the location of the supplementary pilot, while the DMRS location for uplink transmission of the second type of time-domain resources is the location of the pre-amplifier pilot. In other words, the DMRS location for uplink transmission of the first type of time-domain resources is determined based on the location of the pre-amplifier pilot and the location of the supplementary pilot in the eighth information, while the DMRS location for uplink transmission of the second type of time-domain resources is determined only based on the location of the pre-amplifier pilot in the eighth information. Optionally, the DMRS location can be understood as the number and time-domain location of the time-domain resources used to transmit the uplink DMRS.

[0235] The following explains how to determine the cost of DMRS.

[0236] Optionally, the DMRS overhead can be determined based on a DMRS reference value, the average of the DMRS overhead for uplink transmission on Type I time-domain resources and the DMRS overhead for uplink transmission on Type II time-domain resources, or the proportion of the DMRS overhead for uplink transmission on Type I time-domain resources to the DMRS overhead for uplink transmission on Type II time-domain resources. In this way, the transport block size (TBS) can be determined based on the DMRS overhead. The TBS is based on the number N′ of resource elements (REs) available for data transmission on each resource block (RB). RE Determined, N′ RE Satisfy the following formula:

[0237] in, This refers to the number of subcarriers in a PRB. For example, It is 12. This refers to the number of symbols allocated to the PDSCH within a time slot. This refers to the number of REs occupied by DMRS on each PRB during the scheduling period, i.e., the overhead of DMRS mentioned above. This refers to other overhead, which is determined based on the network equipment configuration.

[0238] Optionally, the reference value for DMRS is determined based on the configuration information of the network device.

[0239] Optionally, the DMRS overhead can be determined based on the average of the DMRS overhead of uplink transmissions on the first type of time domain resources and the DMRS overhead of uplink transmissions on the second type of time domain resources. For example, the DMRS overhead = (DMRS overhead of uplink transmissions on the first type of time domain resources + DMRS overhead of uplink transmissions on the second type of time domain resources) / 2. Optionally, the DMRS overhead of uplink transmissions on the first type of time domain resources refers to the DMRS overhead of each uplink transmission or each uplink transmission in each time slot on the first type of time domain resources, or the repeated DMRS overhead of each uplink transmission.

[0240] Optionally, the DMRS overhead can be determined based on the ratio of the DMRS overhead of uplink transmissions on Type I time domain resources to the DMRS overhead of uplink transmissions on Type II time domain resources. For example, DMRS overhead = (DMRS overhead of uplink transmissions on Type I time domain resources * number of uplink transmissions on Type I time domain resources + DMRS overhead of uplink transmissions on Type II time domain resources * number of uplink transmissions on Type II time domain resources) / (number of uplink transmissions on Type I time domain resources + number of uplink transmissions on Type II time domain resources). Optionally, the number of uplink transmissions on Type I time domain resources can also be the number of time slots used for uplink transmissions on Type I time domain resources or the number of repetitions of uplink transmissions on Type I time domain resources. Optionally, the DMRS overhead of uplink transmissions on Type I time domain resources refers to the DMRS overhead of each uplink transmission, each uplink transmission in each time slot, or the repetition of each uplink transmission on Type I time domain resources.

[0241] As can be seen, based on the method described in Figure 9, the terminal can receive the third information to learn about the first and second types of time-domain resources configured by the network device. Then, the terminal can receive the fourth and fifth information to learn about the DMRS positions of uplink transmissions on the first and second types of time-domain resources configured by the network device, respectively. Alternatively, the terminal can also receive the sixth and seventh information to learn about the first and second DMRS positions of uplink transmissions on the first and second types of time-domain resources configured by the network device, respectively. This allows the number of DMRSs on the first type of time-domain resources to be greater than that on the second type of time-domain resources. Considering that uplink transmission of the first type of time domain resources is more susceptible to interference than uplink transmission of the second type of time domain resources, the terminal performs channel estimation on the DMRS of the first type of time domain resources and the DMRS of the second type of time domain resources. This ensures that the channel estimation performance of uplink transmission of the first type of time domain resources is better than that of uplink transmission of the second type of time domain resources. This can resist the higher interference on the first type of time domain resources to a certain extent, thereby balancing the communication performance of uplink transmission of the first type of time domain resources and the second type of time domain resources.

[0242] Optionally, to achieve the aforementioned functions, the device includes corresponding hardware structures and / or software modules for performing each function. Those skilled in the art will readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0243] This application embodiment can divide the terminal or network device into functional modules according to the above method examples. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. It should be noted that the module division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0244] Referring to Figure 11, Figure 11 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. The communication device 1100 can be applied to the methods shown in the embodiments of Figures 3, 6, 8, or 9 above. As shown in Figure 11, the communication device 1100 includes a processing module 1101 and a transceiver module 1102. The processing module 1101 may be one or more processors, and the transceiver module 1102 may be a transceiver or a communication interface. This communication device can be used to implement the terminal or network device involved in any of the above method embodiments, or to implement the functions of network elements involved in any of the above method embodiments. The network element or network function can be a network component in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (e.g., a cloud platform). Optionally, the communication device 1100 may also include a storage module 1103 for storing the program code and data of the communication device 1100. It should be understood that regardless of whether these functional modules are subdivided or combined, the general flow performed by the communication device 1100 in implementing any of the above method embodiments is the same. For example, the transceiver module 1102 in the aforementioned communication device 1100 may include a receiving module and / or a transmitting module. Of course, the transceiver module may also be called a communication module. In one implementation, each module may have its own program code (or program instructions). When the program code corresponding to each module is run on the processor, it causes the unit to execute the corresponding process to achieve the corresponding function.

[0245] In one example, the communication device functions as a terminal or as a chip applied within a terminal, i.e., a chip used in a terminal, and executes the steps performed by the terminal in the above method embodiments. The transceiver module 1102 is used to specifically execute the sending and / or receiving actions performed by the terminal in the embodiments shown in FIG3, FIG6, FIG8, or FIG9, for example, supporting the terminal in performing other processes of the technology described herein. The processing module 1101 can be used to support the communication device 1100 in performing the processing actions in the above method embodiments, for example, supporting the terminal in performing other processes of the technology described herein.

[0246] For example, the transceiver module 1102 is configured to: receive first configuration information, which is used to determine a first resource and a second resource, wherein the downlink transmission power of the first resource is a first transmission power, the downlink transmission power of the second resource is a second transmission power, and the first transmission power is greater than the second transmission power.

[0247] Optionally, the transceiver module 1102 is further configured to receive second configuration information, which is used to determine the downlink reference signal of the period, the downlink reference signal of the period is used to determine the path loss estimate, and the downlink reference signal of the period is all located in the first resource, or all located in the second resource.

[0248] Optionally, the transceiver module 1102 is further configured to receive second configuration information for determining a periodic downlink reference signal. The processing module 1101 is configured to determine a path loss estimate based on a first measurement value and a first transmission power, wherein the first measurement value is a measurement value of the periodic downlink reference signal located on a first resource; or, to determine a path loss estimate based on a second measurement value and a second transmission power, wherein the second measurement value is a measurement value of the periodic downlink reference signal located on a second resource.

[0249] Optionally, the processing module 1101 is further configured to determine the path loss estimate based on the first measurement value or the second measurement value based on the third configuration information or based on the relationship between the downlink signal received power and the first threshold value.

[0250] Optionally, the transceiver module 1102 is further configured to receive second configuration information for determining a periodic downlink reference signal. The processing module 1101 is further configured to determine a third measurement value based on a second measurement value and a power offset value, and determine a path loss estimate based on the third measurement value and a first transmit power, wherein the second measurement value is a measurement value of the periodic downlink reference signal located on the second resource; or, determine a fourth measurement value based on the first measurement value and a power offset value, and determine a path loss estimate based on the fourth measurement value and a second transmit power, wherein the first measurement value is a measurement value of the periodic downlink reference signal located on the first resource.

[0251] Optionally, the processing module 1101 is further configured to: determine a path loss estimate based on a first transmit power when the downlink reference signal of the first measurement period is located in a first resource; or, determine a path loss estimate based on a second transmit power when the downlink reference signal of the first measurement period is located in a second resource; or, determine a path loss estimate based on the first transmit power or the second transmit power based on fourth configuration information; or, determine a path loss estimate based on the first transmit power or the second transmit power based on the relationship between the downlink signal received power and a first threshold value.

[0252] Optionally, the transceiver module 1102 is further configured to receive second configuration information, which is used to determine the periodic downlink reference signal. The processing module 1101 is further configured to filter multiple path loss values ​​to determine a path loss estimate, the multiple path loss values ​​including a path loss value determined based on a first measurement value and a path loss value determined based on a second measurement value, wherein the first measurement value is a measurement value of the periodic downlink reference signal located on a first resource, and the second measurement value is a measurement value of the periodic downlink reference signal located on a second resource.

[0253] Optionally, the transceiver module 1102 is further configured to receive fifth configuration information, which is used to configure a control resource set and a search space set, wherein all time-frequency resources determined by the control resource set and the search space are located in the first resource, or all are located in the second resource.

[0254] Optionally, the transceiver module 1102 is further configured to receive sixth configuration information, which is used to determine the periodic downlink reference signal. The processing module 1101 is further configured to determine, based on the comparison between the measured value and the threshold value of the periodic downlink reference signal, whether a radio link failure has occurred, whether a beam failure has occurred, whether a request message has been sent, the random access type, or one or more of the following: When comparing the measured value of the downlink reference signal of the period with the threshold value, the processing module 1101 is further configured to compare the measured value of the downlink reference signal of the period located on the first resource with the second threshold value, and / or compare the measured value of the downlink reference signal of the period located on the second resource with the third threshold value, wherein the second threshold value and the third threshold value are determined respectively; or, compare the measured value of the downlink reference signal of the period located on the first resource with the fourth threshold value, and / or compare the measured value of the downlink reference signal of the period located on the second resource plus the power offset value with the fourth threshold value; or, compare the measured value of the downlink reference signal of the period located on the first resource minus the power offset value with the fifth threshold value, and / or compare the measured value of the downlink reference signal of the period located on the second resource with the fifth threshold value.

[0255] Optionally, the transceiver module 1102 is further configured to receive seventh configuration information, which is used to determine the periodic downlink reference signal. The processing module 1101 is further configured to differentially report the measured values ​​of multiple downlink reference signals, which are downlink reference signals in the periodic downlink reference signals; wherein, the differential reporting is based on the value of a third measured value and / or a fourth measured value plus a power offset value, where the third measured value is the measured value of the downlink reference signal located on a first resource among the multiple downlink reference signals, and the fourth measured value is the measured value of the downlink reference signal located on a second resource among the multiple downlink reference signals.

[0256] For example, transceiver module 1102 is configured to: receive first information, which is used to determine a first type of time domain resource and a second type of time domain resource. Processing module 1101 is configured to: when the transmitted first control channel overlaps with at least two data channels located in different time domain resources in terms of time domain resources, if the different time domain resources include a first type of time domain resource and a second type of time domain resource, multiplex the control information contained in the first control channel onto the data channel located in the second type of time domain resource.

[0257] For example, transceiver module 1102 is configured to: receive second information, the second information being used to enable demodulation reference signal (DMRS) bundling. Processing module 1101 is configured to: determine one or more actual TDWs from a nominal time-domain window (TDW) based on a first event, the nominal TDW being used for DMRS bundling, the first event including one or more of the following: any two consecutive uplink transmissions within the nominal TDW are respectively located on a first type of time-domain resource and a second type of time-domain resource; or, any two consecutive uplink transmissions within the nominal TDW have different transmit powers; or, any two consecutive uplink transmissions within the nominal TDW have different power parameters.

[0258] For example, transceiver module 1102 is configured to: receive third information, which is used to determine a first type of time domain resource and a second type of time domain resource. Transceiver module 1102 is further configured to: receive fourth and fifth information, which is used to determine the DMRS position of uplink transmission on the first type of time domain resource and the fifth information is used to determine the DMRS position of uplink transmission on the second type of time domain resource; or, receive sixth and seventh information, which is used to determine the first DMRS position of uplink transmission on the first type of time domain resource and the second type of time domain resource, and the seventh information is used to configure the second DMRS position of uplink transmission on the first type of time domain resource.

[0259] In one example, when the communication device functions as a network device or as a chip applied within a network device (i.e., a chip used in a network device), it executes the steps performed by the network device in the above method embodiments. The transceiver module 1102 is used to specifically execute the sending and / or receiving actions performed by the network device in the embodiments shown in FIG3, FIG6, FIG8, or FIG9, for example, supporting the network device in performing other processes of the technology described herein. The processing module 1101 can be used to support the communication device 1100 in performing the processing actions in the above method embodiments, for example, supporting the network device in performing other processes of the technology described herein.

[0260] For example, the transceiver module 1102 is configured to: send first configuration information, which is used to determine a first resource and a second resource, wherein the downlink transmission transmission power of the first resource is a first transmission power, the downlink transmission transmission power of the second resource is a second transmission power, and the first transmission power is greater than the second transmission power.

[0261] Optionally, the transceiver module 1102 is also used to send fifth configuration information, which is used to configure the control resource set and the search space set, wherein all time-frequency resources determined by the control resource set and the search space are located in the first resource, or all are located in the second resource.

[0262] Optionally, the transceiver module 1102 is further configured to send seventh configuration information, which is used to determine the periodic downlink reference signal. The processing module 1101 is further configured to receive measurement values ​​of multiple downlink reference signals, which are downlink reference signals in the periodic downlink reference signals. The measurement values ​​of the multiple downlink reference signals are transmitted uplink using a differential reporting method. The differential reporting is based on the value of a third measurement value and / or a fourth measurement value plus a power offset value. The third measurement value is the measurement value of the downlink reference signal located on a first resource among the multiple downlink reference signals, and the fourth measurement value is the measurement value of the downlink reference signal located on a second resource among the multiple downlink reference signals.

[0263] For example, transceiver module 1102 is configured to: send third information, which is used to determine a first type of time domain resource and a second type of time domain resource. Transceiver module 1102 is also configured to: send fourth and fifth information, which is used to determine the DMRS position of uplink transmission on the first type of time domain resource and the fifth information is used to determine the DMRS position of uplink transmission on the second type of time domain resource; or, send sixth and seventh information, which is used to determine the first DMRS position of uplink transmission on the first type of time domain resource and the second type of time domain resource, and the seventh information is used to configure the second DMRS position of uplink transmission on the first type of time domain resource.

[0264] In one possible implementation, when the aforementioned device is a chip, the transceiver module 1102 can be a communication interface, pins, or circuits. The communication interface can be used to input data to be processed to the processor and can output the processor's processing results. Specifically, the communication interface can be a general purpose input / output (GPIO) interface, which can connect to multiple peripheral devices (such as LCD displays, cameras, radio frequency (RF) modules, antennas, etc.). The communication interface is connected to the processor via a bus.

[0265] The processing module 1101 may be a processing circuit, which may be one or more processors, or all or part of the circuitry in one or more processors used for control and / or processing. The processing circuit or processor may execute computer execution instructions stored in the storage module to cause the chip to execute the methods involved in the embodiments shown in Figures 3, 6, 8, or 9. Further, the processor may include a controller, an arithmetic logic unit (ALU), and registers. For example, the controller is mainly responsible for instruction decoding and issuing control signals for the operations corresponding to the instructions. The ALU is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and may also perform address operations and conversions. The registers are mainly responsible for storing register operands and intermediate operation results temporarily stored during instruction execution. In specific implementations, the processor's hardware architecture may be an application-specific integrated circuit (ASIC) architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced reduced instruction set machine (RISC) machine (ARM) architecture, or a network processor (NP) architecture, etc. The processor can be single-core or multi-core. The storage module can be an in-chip storage module, such as registers or caches. The storage module can also be an external storage module, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), etc.

[0266] Optionally, the functions of the processor and interface can be implemented through hardware design, software design, or a combination of hardware and software; no restrictions are imposed here.

[0267] Figure 12 is a schematic diagram of another communication device provided in an embodiment of this application. Optionally, the communication device 1210 includes necessary means such as modules, units, elements, circuits, or interfaces, which are appropriately configured together to execute the solution. The communication device 1210 can be the aforementioned terminal or network device, or a component (e.g., a chip) in these devices, used to implement the methods described in the above method embodiments. The communication device 1210 includes one or more processors 1211. The processor 1211 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (e.g., a terminal, network device, or chip), execute software programs, and process data from the software programs.

[0268] Optionally, in one design, the processor 1211 may include a program 1213 (sometimes also referred to as code or instructions), which can be executed on the processor 1211 to cause the communication device 1210 to perform the methods described in the above embodiments. In yet another possible design, the communication device 1210 includes circuitry (not shown in FIG12) for implementing the terminal, network device, and other functions described in the above embodiments. Optionally, the communication device 1210 may include one or more memories 1212 storing a program 1214 (sometimes also referred to as code or instructions), which can be executed on the memory 1212 to cause the communication device 1210 to perform the methods described in the above method embodiments.

[0269] Optionally, data may also be stored in the processor 1211 and / or the memory 1212. The processor and memory may be configured separately or integrated together.

[0270] Optionally, if the communication device 1210 is a terminal or network device, it may further include a transceiver 1215 and / or an antenna 1216. The processor 1211, sometimes referred to as a processing unit, controls the communication device (e.g., a terminal or network device). The transceiver 1215, sometimes referred to as a transceiver unit, transceiver, or transceiver circuit, is used to implement the transmission and reception functions of the communication device via the antenna 1216. Optionally, the transceiver 1215 may include a receiver and / or a transmitter. The receiver may be referred to as a receiving unit, receiver, or receiving circuit. The transmitter may be referred to as a transmitting unit, transmitter, or transmitting circuit.

[0271] Optionally, if the communication device 1210 is a chip for a terminal or network device, the transceiver 1215 may be a transceiver circuit, such as an input / output interface, or a transceiver interface.

[0272] This application also provides a communication device, which includes at least one processor; wherein the at least one processor is configured to perform the method described in any one of the embodiments shown in FIG3, FIG6, FIG8 or FIG9.

[0273] This application also provides a computer-readable storage medium storing computer instructions that, when executed, cause the computer to perform the method described in any of the embodiments shown in FIG3, FIG6, FIG8 or FIG9.

[0274] This application also provides a computer program product, which includes computer program code. When the computer program code is run, it causes the computer to perform the method described in any one of the embodiments shown in FIG3, FIG6, FIG8 or FIG9.

[0275] This application also provides a chip, which includes at least one processor and an interface. The processor is used to read and execute instructions stored in a memory. When the instructions are executed, the chip causes the chip to perform the method described in any one of the embodiments shown in FIG3, FIG6, FIG8 or FIG9.

[0276] Optionally, the processing performed by a single execution entity (terminal or network device) shown in any of the above embodiments can also be divided into multiple execution entities, which can be logically and / or physically separated. For example, the processing performed by the network device can be divided into execution by at least one of CU, DU, and RU.

[0277] Furthermore, the various embodiments of this application are merely illustrative examples of executing all the steps included, and should not be considered as specific limitations on this application. For example, the order of steps in various embodiments can be simply changed according to their function and internal logic; or, for example, all steps in various embodiments can be executed, or only a portion of them can be executed, as long as the same function as in the embodiments of this application can be achieved.

[0278] In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to a network device" can be understood as the destination of the information being the network device, which can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from a network device" can be understood as the source of the information being the network device, which can include direct reception from the network device via the air interface or indirect reception from the network device via the air interface from other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0279] In other words, sending and receiving can occur between devices, such as between network devices and terminals; or they can occur within a device, such as between components, modules, chips, software modules, or hardware modules within a device via a bus, wiring, or interface.

[0280] In the embodiments of this application, "when," "if," "if," and "in the case of" all refer to the device making corresponding processing under certain objective circumstances, and are not limited to a time, nor do they require the device to make a judgment action when it is implemented, nor do they mean that there are other limitations.

[0281] In this application, the words “example,” “exemplarily,” “for example,” or “such as” are used to indicate that something is an example, illustration, or description. Any embodiment or design described as “example,” “exemplarily,” “for example,” or “such as” in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words “example,” “exemplarily,” “for example,” or “such as” is intended to present the relevant concepts in a specific manner.

[0282] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: Receive first configuration information, the first configuration information is used to determine a first resource and a second resource, the downlink transmission transmission power of the first resource is a first transmission power, the downlink transmission transmission power of the second resource is a second transmission power, and the first transmission power is greater than the second transmission power.

2. The method according to claim 1, characterized in that, The method further includes: Receive second configuration information, the second configuration information being used to determine a periodic downlink reference signal, the periodic downlink reference signal being used to determine a path loss estimate, the periodic downlink reference signal being entirely located in the first resource, or entirely located in the second resource.

3. The method according to claim 1, characterized in that, The method further includes: Receive second configuration information, which is used to determine the downlink reference signal of the period; A path loss estimate is determined based on a first measurement and the first transmit power, wherein the first measurement is a measurement of the downlink reference signal of the period located on the first resource; or, The path loss estimate is determined based on the second measurement and the second transmission power, wherein the second measurement is a measurement of the downlink reference signal of the period located on the second resource.

4. The method according to claim 3, characterized in that, The method further includes: Based on the third configuration information, or based on the relationship between the downlink signal received power and the first threshold value, the path loss estimate is determined based on the first measurement value or the second measurement value.

5. The method according to claim 1, characterized in that, The method further includes: Receive second configuration information, which is used to determine the downlink reference signal of the period; A third measurement is determined based on a second measurement and a power offset value, and a path loss estimate is determined based on the third measurement and the first transmit power, wherein the second measurement is a measurement of the downlink reference signal of the period located on the second resource; or, A fourth measurement is determined based on the first measurement and the power offset value, and the path loss estimate is determined based on the fourth measurement and the second transmit power, wherein the first measurement is a measurement of the downlink reference signal of the period located on the first resource.

6. The method according to claim 5, characterized in that, The power offset value is the offset between the first transmission power and the second transmission power.

7. The method according to claim 5, characterized in that, The method further includes: When the downlink reference signal of the first measured period is located in the first resource, the path loss estimate is determined based on the first transmit power; or, when the downlink reference signal of the first measured period is located in the second resource, the path loss estimate is determined based on the second transmit power; or... The path loss estimate is determined based on either the first transmission power or the second transmission power, according to the fourth configuration information; or... The path loss estimate is determined based on the relationship between the downlink signal received power and the first threshold value, and based on either the first transmit power or the second transmit power.

8. The method according to claim 1, characterized in that, The method further includes: Receive second configuration information, which is used to determine the downlink reference signal of the period; The path loss estimate is determined by filtering multiple path loss values, including a path loss value determined based on a first measurement value and a path loss value determined based on a second measurement value. The first measurement value is a measurement value of the downlink reference signal of the period located on the first resource, and the second measurement value is a measurement value of the downlink reference signal of the period located on the second resource.

9. The method according to any one of claims 3-8, characterized in that, The downlink reference signal for the cycle is located at the first resource and the second resource.

10. The method according to any one of claims 1-9, characterized in that, The method further includes: The system receives fifth configuration information, which is used to configure a control resource set and a search space set. The time-frequency resources determined by the control resource set and the search space are all located in the first resource, or all located in the second resource.

11. The method according to any one of claims 1-10, characterized in that, The method further includes: Receive sixth configuration information, which is used to determine the downlink reference signal of the period; Based on the comparison between the measured value of the downlink reference signal and the threshold value of the period, determine whether a wireless link failure has occurred, whether a beam failure has occurred, whether a request message has been sent, the random access type, or one or more of the random access carriers. The request information is used to request message 3 to be transmitted repeatedly, the random access type is two-step random access or four-step random access, and the random access carrier is normal uplink NUL or auxiliary uplink SUL. The comparison relationship between the measured value and the threshold value of the downlink reference signal of the period includes: Compare the measured value of the downlink reference signal of the period located on the first resource with a second threshold value, and / or compare the measured value of the downlink reference signal of the period located on the second resource with a third threshold value, wherein the second threshold value and the third threshold value are determined respectively; or, Compare the measured value of the downlink reference signal of the period located on the first resource with a fourth threshold value, and / or compare the measured value of the downlink reference signal of the period located on the second resource plus the power offset value with the fourth threshold value; or, Compare the measured value of the downlink reference signal of the period located on the first resource minus the power offset value with the fifth threshold value, and / or compare the measured value of the downlink reference signal of the period located on the second resource with the fifth threshold value.

12. The method according to any one of claims 1-11, characterized in that, The method further includes: Receive seventh configuration information, which is used to determine the downlink reference signal of the period; Differential reporting is performed on the measured values ​​of multiple downlink reference signals, which are downlink reference signals in the downlink reference signals of the period; wherein, differential reporting is performed based on the value of a third measurement value and / or a fourth measurement value plus the power offset value, where the third measurement value is the measured value of the downlink reference signal located on the first resource among the multiple downlink reference signals, and the fourth measurement value is the measured value of the downlink reference signal located on the second resource among the multiple downlink reference signals.

13. A communication method, characterized in that, include: Receive first information, the first information being used to determine a first type of time-domain resource and a second type of time-domain resource; When the first control channel being transmitted overlaps with at least two data channels located in different time domain resources in the time domain, if the different time domain resources include the first type of time domain resources and the second type of time domain resources, the control information contained in the first control channel is multiplexed onto the data channel located in the second type of time domain resources.

14. A communication method, characterized in that, include: Receive second information, which is used to enable demodulation reference signal (DMRS) bundling; One or more actual TDWs are determined from the nominal time-domain window TDW based on a first event, wherein the nominal TDW is used for DMRS bundling, and the first event includes one or more of the following: Any two consecutive uplink transmissions within the nominal TDW are located on Type I time domain resources and Type II time domain resources, respectively; or, The transmit power of any two consecutive uplink transmissions within the nominal TDW is different; or, The power parameters of any two consecutive uplink transmissions within the nominal TDW are different.

15. A communication method, characterized in that, include: Receive third information, which is used to determine the first type of time-domain resources and the second type of time-domain resources; Receive fourth information and fifth information, wherein the fourth information is used to determine the DMRS location of the uplink transmission on the first type of time domain resource, and the fifth information is used to determine the DMRS location of the uplink transmission on the second type of time domain resource; or, Receive sixth information and seventh information, wherein the sixth information is used to determine the first DMRS position of uplink transmission on the first type of time domain resources and the second type of time domain resources, and the seventh information is used to configure the second DMRS position of uplink transmission on the first type of time domain resources.

16. A communication method, characterized in that, include: Send first configuration information, which is used to determine a first resource and a second resource. The downlink transmission transmission power of the first resource is a first transmission power, and the downlink transmission transmission power of the second resource is a second transmission power. The first transmission power is greater than the second transmission power.

17. The method according to claim 16, characterized in that, The method further includes: Send fifth configuration information, which is used to configure a control resource set and a search space set, wherein all time-frequency resources determined by the control resource set and the search space are located in the first resource, or all are located in the second resource.

18. The method according to claim 16 or 17, characterized in that, The method further includes: Send seventh configuration information, which is used to determine the downlink reference signal of the period; The system receives measurements of multiple downlink reference signals, which are downlink reference signals in the periodic downlink reference signals. The measurements of the multiple downlink reference signals are transmitted uplink using a differential reporting method. The differential reporting is based on a third measurement value and / or a fourth measurement value plus the power offset value. The third measurement value is the measurement value of the downlink reference signal located on the first resource among the multiple downlink reference signals, and the fourth measurement value is the measurement value of the downlink reference signal located on the second resource among the multiple downlink reference signals.

19. A communication method, characterized in that, include: Send a third message, the third message being used to determine the first type of time-domain resource and the second type of time-domain resource; Send a fourth message and a fifth message, wherein the fourth message is used to determine the DMRS location of the uplink transmission on the first type of time domain resource, and the fifth message is used to determine the DMRS location of the uplink transmission on the second type of time domain resource; or, Send a sixth message and a seventh message, wherein the sixth message is used to determine the first DMRS position of uplink transmission on the first type of time domain resources and the second type of time domain resources, and the seventh message is used to determine the second DMRS position of uplink transmission on the first type of time domain resources.

20. A communication device, characterized in that, Includes units or modules for implementing the method as described in any one of claims 1-19.

21. A communication device, characterized in that, The communication device includes at least one processor; wherein the at least one processor is configured to cause the communication device to perform the method according to any one of claims 1-19.

22. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions or programs that, when executed, cause the computer to perform the method as described in any one of claims 1-19.

23. A computer program product, characterized in that, The computer program product includes: computer instructions or programs that, when executed by a computer, cause the computer to perform the method as described in any one of claims 1-19.

24. A chip, characterized in that, The chip includes at least one processor and an interface, the processor being configured to execute computer instructions or programs that, when run, cause the chip to perform the method as described in any one of claims 1-19.

Images