Measurement and reporting method and related device
By measuring and reporting the signal quality difference between the new beam and the serving beam through terminal equipment, the problem of terminal equipment being unable to report beam quality in a targeted manner is solved, thereby improving the beam management efficiency of network equipment and reducing signaling overhead.
Patent Information
- Application Number
- CN202410579836.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-11-11
AI Technical Summary
Terminal devices cannot report the signal quality of different types of beams in a targeted manner, which makes it impossible for network devices to effectively decide whether to update the serving beam. In addition, the signaling overhead of the measurement results of terminal devices in the existing technology is relatively large.
The terminal equipment measures the signal quality of the new beam and the differential quality of the serving beam, and reports the differential quality to the network equipment so that the network equipment can decide whether to update the serving beam, thereby reducing the signaling overhead of the signal quality measurement results.
It enables terminal devices to report targeted measurement results for specific types of beams, helping network devices make decisions on service beam updates and reducing signaling overhead.
Smart Images

Figure CN120935638A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of communication technology, and in particular to a measurement and reporting method and related apparatus. Background Technology
[0002] Fifth-generation (5G) mobile communication systems can employ high-frequency communication, specifically ultra-high-frequency (UHF) signals (such as 28GHz) for data transmission. A major problem with high-frequency communication is the sharp decrease in signal energy with transmission distance, resulting in short transmission ranges. To overcome this issue, high-frequency communication uses analog beamforming technology. By weighting the antenna array, the signal energy is concentrated within a small angular range, forming a beam-like signal (called an analog beam, or simply a beam), thereby increasing the transmission distance. Both network devices and terminal devices utilize beamforming for transmission. Specific beamforming techniques are required for both uplink and downlink data transmission.
[0003] Network devices and terminal devices can select appropriate beams through a beam management process. Then, they communicate using the selected beams. The terminal device can also continue to measure the signal quality of multiple beams configured for it by the network device. Finally, the terminal device reports the signal quality of at least one beam with the best measured signal quality, based on the network's configured reporting resources.
[0004] The terminal device proactively reports the signal quality of multiple beams, without distinguishing between the types of beams. This prevents the terminal device from specifically reporting the signal quality of different beam types. Consequently, the network device cannot decide whether to update the serving beam of the terminal device. Summary of the Invention
[0005] This application provides a measurement and reporting method and related apparatus for a terminal device to send measurement results of one or more new beams to a network device. The measurement results of the one or more new beams include the differential quality of the one or more new beams. The differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the terminal device's serving beam; or, the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality. This enables the terminal device to report measurement results for specific types of beams. This allows the network device to decide whether to update the terminal device's serving beam based on the measurement results. Furthermore, reporting the differential quality of the one or more new beams to the network device by the terminal device helps reduce the signaling overhead of the terminal device reporting measurement results.
[0006] The first aspect of this application provides a measurement and reporting method, which can be used on the terminal side, for example, executed by a terminal device. The terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuits, or a chip, chip system, module, or control unit in the aforementioned device or apparatus; the specific implementation is not limited in this application. It should be noted that, in this application, when referring to a terminal device, it can refer to the terminal device itself, or to the chip, functional module, or integrated circuit in the terminal device that performs the method provided in this application; the specific implementation is not limited in this application. In the first aspect and its possible implementations, the method is described as being executed by a terminal device. The method includes: the terminal device measuring a reference signal corresponding to one or more new beams from a network device, and obtaining the measurement results of the one or more new beams; wherein, the measurement results of the one or more new beams include the differential quality of the one or more new beams, the differential quality of each of the one or more new beams being the difference between the signal quality of each new beam and the signal quality of the serving beam of the terminal device, and the one or more new beams being beams of the terminal device different from the serving beam; the terminal device sending the measurement results of the one or more new beams to the network device. This enables terminal devices to report measurement results for specific types of beams. This allows network devices to decide whether to update the serving beam of the terminal device based on the measurement results. Furthermore, the terminal device reporting the differential quality of one or more new beams to the network device helps reduce the signaling overhead of the terminal device reporting measurement results.
[0007] The second aspect of this application provides a measurement and reporting method, which can be used on the terminal side, for example, executed by a terminal device. The terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit within the aforementioned device or apparatus; specific details are not limited in this application. It should be noted that, in this application, the term "terminal device" can refer to the terminal device itself, or to the chip, functional module, or integrated circuit within the terminal device that performs the method provided in this application; specific details are not limited in this application. In the second aspect and its possible implementations, the method is described using the example of execution by a terminal device. The method includes: a terminal device measuring a reference signal corresponding to one or more new beams from a network device to obtain measurement results for one or more new beams; wherein, the one or more new beams include a single new beam, and the measurement results for the one or more new beams include the signal quality of that new beam; or, the one or more new beams include multiple new beams, and the measurement results for the one or more new beams include the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the new beam with the highest signal quality, wherein the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality, and the one or more new beams are beams of the terminal device that are different from the terminal device's serving beam; the terminal device sending the measurement results of one or more new beams to the network device. This enables the terminal device to report measurement results for specific types of beams in a targeted manner. This allows the network device to decide whether to update the terminal device's serving beam based on the measurement results. Furthermore, the terminal device reporting the differential quality of the one or more new beams to the network device helps reduce the signaling overhead of the terminal device reporting the measurement results.
[0008] The third aspect of this application provides a measurement and reporting method, which can be used on the network side, for example, executed by a network device. The network device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit within the aforementioned device or apparatus; specific details are not limited in this application. It should be noted that, in this application, the term "network device" can refer to the network device itself, or to the chip, functional module, or integrated circuit within the network device that performs the method provided in this application; specific details are not limited in this application. In the third aspect and its possible implementations, the method is described using the example of execution by a network device. The method includes: a network device sending a reference signal corresponding to one or more new beams to a terminal device; the network device receiving measurement results of the one or more new beams from the terminal device; wherein the measurement results of the one or more new beams are obtained by the terminal device measuring the reference signal corresponding to the one or more new beams, and the measurement results of the one or more new beams include the differential quality of the one or more new beams, the differential quality of each of the one or more new beams being the difference between the signal quality of each new beam and the signal quality of the serving beam of the terminal device, and the one or more new beams being beams of the terminal device that are different from the serving beam. This allows the network device to decide whether to update the serving beam of the terminal device based on the measurement results. Furthermore, the terminal device reporting the differential quality of the one or more new beams to the network device helps reduce the signaling overhead of the terminal device reporting the measurement results.
[0009] The fourth aspect of this application provides a measurement and reporting method, which can be used on the network side, for example, executed by a network device. The network device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit within the aforementioned device or apparatus; specific details are not limited in this application. It should be noted that, in this application, the term "network device" can refer to the network device itself, or to the chip, functional module, or integrated circuit within the network device that performs the method provided in this application; specific details are not limited in this application. In the third aspect and its possible implementations, the method is described using the example of execution by a network device. The method includes: a network device sending a reference signal corresponding to one or more new beams to a terminal device; the network device receiving measurement results of the one or more new beams from the terminal device; wherein the measurement results of the one or more new beams are obtained by the terminal device measuring the reference signal corresponding to the one or more new beams, the one or more new beams include a new beam, and the measurement results of the one or more new beams include the signal quality of the new beam; or, the one or more new beams include multiple new beams, and the measurement results of the one or more new beams include the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the new beam with the highest signal quality, the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality, and the one or more new beams are beams of the terminal device that are different from the terminal device's serving beam. This allows the network device to decide whether to update the terminal device's serving beam based on the measurement results. Furthermore, the terminal device reporting the differential quality of the one or more new beams to the network device helps reduce the signaling overhead of the terminal device reporting the measurement results.
[0010] Optionally, in the first to fourth aspects above, the reference signal corresponding to one or more new beams can be described as: the reference signal corresponding to one or more candidate beams, or one or more candidate beam resources, or one or more candidate beam measurement resources, or one or more candidate reference signals, or one or more reference signal resources, and this application does not limit the specifics.
[0011] Optionally, in the first to fourth aspects above, one or more new beams can be described as: one or more candidate beams, or one or more candidate beam resources, or one or more candidate beam measurement resources, or one or more candidate reference signals, or one or more reference signal resources, and this application does not limit the specifics.
[0012] Based on any one of the first to fourth aspects, in one possible implementation, the one or more new beams include: at least one new beam that satisfies the event occurrence conditions configured by the network device for the terminal device. In other words, some or all of the one or more new beams satisfy the event occurrence conditions configured by the network device for the terminal device. This enables the terminal device to report the signal quality or differential quality of the new beam that satisfies the event occurrence conditions configured by the network device for the terminal device to the network device. It facilitates the network device in obtaining measurement results of the new beams. It helps the network device decide whether to switch the serving beam of the terminal device based on the measurement results reported by the terminal device.
[0013] Based on any one of the first to fourth aspects, in one possible implementation, the differential quality of each new beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the new beam and the values of the n bits in a first interval with a quantization step size of x dB. The first interval is either the [A, B] dB interval, the [A, B) interval, the (A, B] interval, or the (A, B) interval, where A and B are determined based on x and n, where x is greater than 0. This implementation illustrates one possible way to indicate the differential quality of each new beam, thereby achieving the indication of the differential quality of the new beam.
[0014] Based on any one of the first to fourth aspects, in one possible implementation, A = -xΦ2 n-1 B = xc(2 n-1 -1); or, A = -xΦ(2 n-1 -1), B=xΦ2 n-1 In this implementation, two possible values for A and B in the first interval are shown. The differential quality of the new beam can be equal to the signal quality of the serving beam minus the signal quality of the new beam. Alternatively, the differential quality of the new beam can be equal to the signal quality of the new beam minus the signal quality of the serving beam. Therefore, the differential quality of the new beam can be positive or negative.
[0015] Based on any one of the first to fourth aspects, in one possible implementation, A = 0, B = x*(2 n -1); or, A = -x*(2 n -1), B = 0. In this implementation, two possible values for A and B in the first interval are shown. The differential quality of the new beam can be equal to the signal quality of the new beam with the highest signal quality minus the signal quality of that new beam. Alternatively, the differential quality of the new beam can be equal to the signal quality of that new beam minus the signal quality of the new beam with the highest signal quality. Therefore, the differential quality of the new beam is either all positive or all negative.
[0016] Based on any one of the first to fourth aspects, in one possible implementation, the differential quality of each new beam is indicated by the values of m bits, where m is an integer greater than or equal to 2. The value of one bit in the m bits indicates whether the differential quality of the new beam is positive or negative. The values of the bits other than one bit in the m bits indicate the magnitude of the differential quality. The values of the bits other than one bit in the m bits are obtained by taking the values of the bits other than one bit in the m bits based on the magnitude of the differential quality of the new beam and the second interval with a quantization step size of x dB, where x is greater than 0, and the second interval is the interval [0, C], or [0, C), or (0, C], or (0, C), where C is determined according to x and n. This implementation illustrates another method for indicating the differential quality of a new beam. The differential quality of the new beam can be equal to the signal quality of the serving beam minus the signal quality of the new beam. Alternatively, the differential quality of the new beam can be equal to the signal quality of the new beam minus the signal quality of the serving beam. Therefore, the differential quality of the new beam can be positive or negative. Thus, one bit out of the m bits is used to indicate whether the differential quality is positive or negative. The values of the remaining bits are used to indicate the magnitude of the differential quality of the new beam. This achieves the indication of the differential quality of the new beam. In this implementation, the terminal device can report the differential quality of the new beam that meets the conditions for the event occurring, as well as the differential quality of the new beam that does not meet the conditions for the event occurring, thereby facilitating the network device's decision on whether to switch the terminal device's serving beam.
[0017] Based on any one of the first to fourth aspects, in one possible implementation, C = x*(2 n-1 -1). In this implementation, one possible implementation of the second interval is shown. This facilitates the terminal device in taking values for m bits based on the second interval.
[0018] Based on any one of the first to fourth aspects, in one possible implementation, the differential quality of each new beam is indicated by the value of n bits, where n is an integer greater than or equal to 1; one or more new beams include a first beam and a second beam, the first beam does not satisfy the event occurrence conditions configured by the network device for the terminal device, the differential quality of the first beam is indicated by a first value of a first bit string, the first bit string including n bits, the first value being used to indicate that the first beam does not satisfy the event occurrence conditions; the second beam satisfies the event occurrence conditions configured by the network device for the terminal device, the signal quality of the second beam is indicated by the value of a second bit string, the second bit string including n bits, the value of the second bit string being obtained based on the differential quality of the second beam and the third interval with a quantization step size of xdB, where x is greater than 0, and the third interval is the [0, D] interval. The range can be [0, D), (0, D), (0, D), [-D, 0), [-D, 0), [-D, 0), [-D, 0], [-D, 0], or [-D, 0], where D is determined based on x and n. This implementation illustrates another possible way to indicate the differential quality of a new beam. The values of the n bits corresponding to the differential quality of a new beam that does not meet the event occurrence conditions can be the first value. This distinguishes between new beams that do not meet the event occurrence conditions and those that do. Furthermore, since the values of the n bits corresponding to a new beam that does not meet the event occurrence conditions are special values, the range of values for the n bits corresponding to the differential quality of a new beam that meets the event occurrence conditions can be larger, which is beneficial for better indicating the differential quality of each new beam. This facilitates network devices obtaining measurement results for the new beams.
[0019] Based on any one of the first to fourth aspects, in one possible implementation, D = x*(2 n -2). In this implementation, one possible implementation of the second interval is shown. This facilitates the terminal device in taking values for n bits based on the third interval.
[0020] Based on any one of the first to fourth aspects, in one possible implementation, the measurement results of one or more new beams also include the index of one or more new beams.
[0021] Based on any one of the first to fourth aspects, in one possible implementation, the index of each new beam is indicated by the value of y bits, where y is an integer greater than or equal to 1.
[0022] Based on any one of the first to fourth aspects, in one possible implementation, when the signal quality of the new beam does not meet the event occurrence conditions configured by the network device for the terminal device, the y bits are assigned a second value, which indicates that the signal quality of the new beam does not meet the event occurrence conditions. Thus, the specific values of the y bits indicate that the new beam does not meet the event occurrence conditions.
[0023] Based on any one of the first to fourth aspects, in one possible implementation, one or more new beams include a third beam that satisfies the conditions for an event configured by the network device for the terminal device. The differential quality of the third beam is indicated by the values of n bits, which are obtained based on the differential quality of the third beam and the values of the n bits in a fourth interval with a quantization step size of xdB. The fourth interval is either the [0, E] interval, or the [0, E] interval, or the (0, E] interval, or the (0, E) interval, or the [-E, 0] interval, or the (-E, 0) interval. The interval can be either (-E, 0) or (-E, 0), where E is determined by x and n, where x is greater than 0 and n is an integer greater than or equal to 1. This provides another way to indicate the differential quality of a new beam, improving the feasibility of the scheme. Furthermore, the values of the n bits corresponding to a new beam that does not meet the event occurrence conditions are meaningless. Therefore, the range of values for the n bits corresponding to the differential quality of a new beam that meets the event occurrence conditions can be larger, which is beneficial for better indicating the differential quality of each new beam. This facilitates network devices obtaining the measurement results of the new beam.
[0024] Based on any one of the first to fourth aspects, in one possible implementation, E = x*(2 n -1). This implementation illustrates one possible way to implement the fourth interval. This allows the terminal device to select values for n bits based on the fourth interval.
[0025] Based on the first or second aspect, in one possible implementation, the method further includes: the terminal device measuring the reference signal corresponding to the serving beam from the network device to obtain the measurement result of the serving beam. This facilitates the terminal device in determining the differential quality of the new beam.
[0026] Based on the first or second aspect, in one possible implementation, the method further includes: the terminal device sending the measurement results of the serving beam to the network device. This enables the network device to obtain the measurement results of the serving beam. This allows the network device to combine the measurement results of the serving beam with the measurement results of one or more new beams to decide whether to update the serving beam of the terminal device. This improves communication performance.
[0027] Based on the third or fourth aspect, in one possible implementation, the method further includes: the network device receiving the measurement results of the serving beam from the terminal device. This enables the network device to obtain the measurement results of the serving beam. This allows the network device to combine the measurement results of the serving beam with the measurement results of one or more new beams to decide whether to update the serving beam of the terminal device. This improves communication performance.
[0028] Based on any one of the first to fourth aspects, in one possible implementation, the measurement result of the serving beam includes the signal quality of the serving beam; or, the measurement result of the serving beam includes the differential quality of the serving beam, where the differential quality of the serving beam is the difference between the signal quality of the serving beam and the signal quality of the new beam with the largest signal quality. Two possible implementations of the service beam measurement result are shown. This facilitates network devices in knowing the signal quality of the serving beam, and helps network devices decide whether to update the serving beam.
[0029] Based on any one of the first to fourth aspects, in one possible implementation, the differential quality of the serving beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the serving beam and the values of the n bits in a first interval with a quantization step size of x dB. The first interval is either the [A, B] dB interval, the [A, B) interval, the (A, B] interval, or the (A, B) interval, where A and B are determined based on x and n, where x is greater than 0. This implements the indication of the differential quality of the serving beam.
[0030] Based on any one of the first to fourth aspects, in one possible implementation, the signal quality of the serving beam is indicated by the values of q bits, where q is an integer greater than or equal to 1. The values of the q bits are obtained based on the signal quality of the serving beam and the quantization step size of LdB or LdBm for the fifth interval, where L is greater than 0. Optionally, the fifth interval is the interval [-140, -40] or [-23, 40]. This enables the indication of the signal quality of the serving beam to the network device.
[0031] Based on any one of the first to fourth aspects, in one possible implementation, the measurement results of the serving beam also include the index of the serving beam.
[0032] Based on any one of the first to fourth aspects, in one possible implementation, one or more new beams include S new beams, and the measurement results of one or more new beams include S first fields and S second fields. The S first fields correspond one-to-one with the S new beams, and the S second fields also correspond one-to-one with the S new beams. Each first field indicates the index of the new beam corresponding to the first field, and each second field indicates the differential quality or signal quality of the new beam corresponding to the second field. The S first fields precede the S second fields, where S is an integer greater than or equal to 1. This defines the positional relationship between the S first fields and the S second fields, thereby facilitating network devices in reading the signal quality or differential quality of each new beam.
[0033] Based on any one of the first to fourth aspects, in one possible implementation, the i-th second field among the S second fields is used to indicate the signal quality or differential quality of the new beam indicated by the i-th first field among the S first fields, where i is an integer greater than or equal to 1 and less than or equal to S. This facilitates the network device in determining the signal quality or differential quality of each new beam.
[0034] Based on any one of the first to fourth aspects, in one possible implementation, the measurement result of the serving beam includes a third field. This third field indicates the signal quality or differential quality of the serving beam. The third field is located before the S first fields, or after the K first fields and before the S second fields, or after the S second fields. This enables the terminal device to report the measurement results of the serving beam and the measurement results of the one or more new beams in a corresponding format. This facilitates the network device in determining the signal quality or differential quality of the serving beam and the signal quality or differential quality of each new beam.
[0035] Based on the first or second aspect, in one possible implementation, the method further includes: the terminal device receiving first configuration information from the network device, the first configuration information being used to configure one or more events for the terminal device.
[0036] Based on the third or fourth aspect, in one possible implementation, the method further includes: the network device sending first configuration information to the terminal device, the first configuration information being used to configure one or more events for the terminal device.
[0037] Based on any one of the first to fourth aspects, in one possible implementation, the events configured by the network device for the terminal device include one or more of the following:
[0038] There exists at least one new beam whose signal quality is greater than that of the serving beam, and the difference between the signal quality of at least one new beam and the signal quality of the serving beam is greater than or equal to a first threshold value.
[0039] There exists a new beam whose signal quality is greater than the second threshold.
[0040] The signal quality of the serving beam is less than the third threshold, and there is at least one new beam whose signal quality is greater than the fourth threshold, and the fourth threshold is greater than or equal to the third threshold.
[0041] There exists a new beam whose signal quality is at least one new beam whose signal quality is less than the fifth threshold value;
[0042] The serving beam is not among the K best-quality new beams measured by the terminal device, where K is an integer greater than or equal to 1;
[0043] There exists a new beam whose signal quality differs from the signal quality of the beam with the worst signal quality among the beams corresponding to the transmission configuration indicator (TCI) state activated by the network device for the terminal device by the network device, and the difference is greater than the sixth threshold.
[0044] There exists a new beam whose signal quality differs from the best-quality beam among the beams corresponding to the TCI state activated by the network device for the terminal device by the network device by a value greater than the seventh threshold.
[0045] There exist at least two new beams whose signal quality differs from the signal quality of the serving beam by a value greater than the eighth threshold; or,
[0046] There exists at least one new beam whose signal quality is greater than the ninth threshold value compared to the beam corresponding to the reference signal configured for the terminal device.
[0047] The above implementation methods illustrate some possible ways to implement one or more events of a network device configuring a terminal device.
[0048] Based on the second or fourth aspect, in one possible implementation, the signal quality of the new beam with the highest signal quality is indicated by the values of t bits, where t is an integer greater than or equal to 1. The values of t bits are obtained by taking the values of t bits based on the signal quality of the new beam with the highest signal quality and the sixth interval using a quantization step size of hdB or hdBm, where t is an integer greater than or equal to 1 and h is greater than 0. This achieves the indication of the signal quality of the new beam with the highest signal quality. This facilitates network devices in determining the signal quality of each new beam based on its signal quality and the differential quality of the other new beams.
[0049] Based on the first or second aspect, one possible implementation further includes: the terminal device sending capability information to the network device. This capability information includes at least one of the following: whether the terminal device supports event-triggered reporting; one or more events corresponding to the event-triggered reporting supported by the terminal device; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the terminal device. This facilitates the network device in configuring corresponding events and reporting configurations for the terminal device, enabling the terminal device to accurately report corresponding measurement results and facilitating the network device's decision on whether to update the terminal device's service beams. This improves communication performance.
[0050] Based on the third or fourth aspect, one possible implementation further includes: the network device receiving capability information from the terminal device, the capability information including at least one of the following: whether the terminal device supports event-triggered reporting capability; one or more events corresponding to the event-triggered reporting supported by the terminal device; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the terminal device. This facilitates the network device in configuring corresponding events and reporting configurations for the terminal device, helps the terminal device accurately report corresponding measurement results, and facilitates the network device's decision on whether to update the terminal device's service beams, thereby improving communication performance.
[0051] Based on any one of the first to fourth aspects, in one possible implementation, the serving beam includes any one of the following: the beam corresponding to the quasi-colocation (QCL) type D reference signal in the transmission configuration indicator state (TCI-state) indicated by the network device to the terminal device; and the synchronization signal-broadcast channel measurement resource block (PBCH) associated with the quasi-colocation QCL type D reference signal in the TCI-state indicated by the network device to the terminal device. The beam corresponding to a block (SSB) resource; the beam corresponding to a QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device; the beam corresponding to the SSB resource associated with the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device; the beam corresponding to the reference signal with the best signal quality among the QCL type D reference signals in one or more TCI states activated by the network device for the terminal device; the beam corresponding to the reference signal with the worst signal quality among the QCL type D reference signals in one or more TCI states activated by the network device for the terminal device; or, the beam corresponding to one or more reference signals configured or indicated by the network device for the terminal device to monitor the service beam. This illustrates some possible implementations of the service beam.
[0052] Optionally, the serving beam may also be referred to as a serving beam measurement resource, or a service measurement resource, or a reference signal, or a reference signal resource; this application does not specify the specific terminology.
[0053] Based on any one of the first to fourth aspects, in one possible implementation, one or more new beams include any one of the following: a beam corresponding to a QCL type D reference signal in a TCI state activated by the network device for the terminal device; a beam corresponding to a QCL type D reference signal in a TCI state configured by the network device for the terminal device; or, a beam corresponding to a reference signal configured by the network device for the terminal device to monitor the one or more new beams. This illustrates some possible implementations of one or more new beams.
[0054] Based on any one of the first to fourth aspects, in one possible implementation, the method further includes: the terminal device determining the number of new beams to be reported for measurement results, and / or determining the number of serving beams to be reported for measurement results. This facilitates the terminal device reporting the measurement results of the corresponding number of new beams and the measurement results of the serving beams.
[0055] Based on any one of the first to fourth aspects, in one possible implementation, the network device configuration or communication protocol specifies that: if the terminal device reports the measurement results of N new beams, then the number of new beams to be reported for measurement results is N, where N is an integer greater than or equal to 1; or, the network device configuration or communication protocol specifies that: if the terminal device reports the measurement results of M beams, and the number of serving beams to be reported for measurement results is P, then the number of new beams to be reported for measurement results is MP, where M is an integer greater than or equal to 2, and P is an integer greater than or equal to 1; or, the network device configuration... If the network device configuration or communication protocol specifies that the terminal device reports the signal quality of K new beams that meet the conditions for the occurrence of the event configured by the network device for the terminal device, then the number of new beams to report the measurement results is K, where K is an integer greater than or equal to 1; or, if the network device configuration or communication protocol specifies that the terminal device reports the measurement results of N new beams, including K new beams that meet the conditions for the occurrence of the event configured by the network device for the terminal device, then the number of new beams to report the measurement results is N, where N is an integer greater than or equal to 2 and K is an integer greater than or equal to 1.
[0056] Based on any one of the first to fourth aspects, in one possible implementation, the network device configuration or communication protocol specifies that: if the terminal device reports the measurement results of R service beams, where R is an integer greater than or equal to 1, then the number of service beams to report the measurement results is R; or, the network device configuration or communication protocol specifies that: if the terminal device does not report the measurement results of service beams, then the number of service beams to report the measurement results is 0; or, the network device configuration or communication protocol specifies that: if the terminal device reports the measurement results of service beams, and the number of service beams is 1, then the number of service beams to report the measurement results is 1.
[0057] Based on the first or second aspect, in one possible implementation, the method further includes: the terminal device receiving second configuration information from the network device, the second configuration information being used to configure at least one of the following: whether the terminal device reports the signal quality of the serving beam; whether the terminal device reports the index of the serving beam; the number of beams reported by the terminal device; the number of new beams reported by the terminal device; the number of serving beams reported by the terminal device; the number of new beams reported by the terminal device that meet the occurrence conditions of events configured by the network device for the terminal device; or whether the terminal device reports the measurement results of the serving beam. This enables the network device to configure reporting requirements for the terminal device. It facilitates the terminal device reporting appropriate measurement results, which is beneficial for the network device to decide whether to update the serving beam of the terminal device. It also improves communication performance.
[0058] Based on the third or fourth aspect, in one possible implementation, the method further includes: the network device sending second configuration information to the terminal device. The second configuration information is used to configure at least one of the following: whether the terminal device reports the signal quality of the serving beam; whether the terminal device reports the index of the serving beam; the number of beams reported by the terminal device; the number of new beams reported by the terminal device; the number of serving beams reported by the terminal device; the number of new beams reported by the terminal device that meet the occurrence conditions of events configured by the network device for the terminal device; or whether the terminal device reports the measurement results of the serving beam. This facilitates the network device in obtaining the signal quality status of the serving beam and in deciding whether to update the serving beam.
[0059] A fifth aspect of this application provides a first communication device, the first communication device comprising:
[0060] The processing module is used to measure the reference signal corresponding to one or more new beams from the second communication device and obtain the measurement results of the one or more new beams; wherein the measurement results of the one or more new beams include the differential quality of the one or more new beams, the differential quality of each new beam in the one or more new beams is the difference between the signal quality of each new beam and the signal quality of the serving beam of the first communication device, and the one or more new beams are beams of the first communication device that are different from the serving beam;
[0061] The transceiver module is used to send measurement results of one or more new beams to a second communication device.
[0062] A sixth aspect of this application provides a first communication device, the first communication device comprising:
[0063] The processing module is configured to measure reference signals corresponding to one or more new beams from the second communication device, and obtain measurement results for one or more new beams; wherein, the one or more new beams include a single new beam, and the measurement results for the one or more new beams include the signal quality of the new beam; or, the one or more new beams include multiple new beams, and the measurement results for the one or more new beams include the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the new beam with the highest signal quality among the multiple new beams, wherein the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality, and the one or more new beams are beams of the first communication device that are different from the service beam of the first communication device;
[0064] The transceiver module is used to send measurement results of one or more new beams to a second communication device.
[0065] A seventh aspect of this application provides a second communication device, the second communication device comprising:
[0066] A transceiver module is configured to transmit reference signals corresponding to one or more new beams to a first communication device; and receive measurement results of the one or more new beams from the first communication device; wherein the measurement results of the one or more new beams are obtained by the first communication device measuring the reference signals corresponding to the one or more new beams, and the measurement results of the one or more new beams include the differential quality of the one or more new beams, wherein the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the serving beam of the first communication device, and the one or more new beams are beams of the first communication device that are different from the serving beam.
[0067] An eighth aspect of this application provides a second communication device, the second communication device comprising:
[0068] A transceiver module is configured to transmit reference signals corresponding to one or more new beams to a first communication device; and receive measurement results of the one or more new beams from the first communication device; wherein the measurement results of the one or more new beams are obtained by the first communication device measuring the reference signals corresponding to the one or more new beams, the one or more new beams include a new beam, and the measurement results of the one or more new beams include the signal quality of the new beam; or, the one or more new beams include multiple new beams, and the measurement results of the one or more new beams include the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the new beam with the highest signal quality among the multiple new beams, the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality, and the one or more new beams are beams of the first communication device that are different from the service beam of the first communication device.
[0069] Based on any one of aspects five through eight, in one possible implementation, the one or more new beams include: at least one new beam that satisfies the conditions for the occurrence of an event configured by the second communication device for the first communication device. In other words, some or all of the one or more new beams satisfy the conditions for the occurrence of an event configured by the second communication device for the first communication device.
[0070] Based on any one of the fifth to eighth aspects, in one possible implementation, the differential quality of each new beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the new beam and the values of the n bits in the first interval with a quantization step size of x dB. The first interval is the [A, B] dB interval, where A and B are determined based on x and n, where x is greater than 0.
[0071] Based on any one of aspects five through eight, in one possible implementation, A = -x * 2 n-1 B = x*(2 n-1 -1); or, A = -x*(2 n-1 -1), B=x*2 n-1 .
[0072] Based on any one of aspects five through eight, in one possible implementation, A = 0, B = x*(2 n -1); or, A = -x*(2 n -1), B = 0.
[0073] Based on any one of the fifth to eighth aspects, in one possible implementation, the differential quality of each new beam is indicated by the values of m bits, where m is an integer greater than or equal to 2. The value of one bit in the m bits indicates whether the differential quality of the new beam is positive or negative. The values of the bits other than one bit in the m bits indicate the magnitude of the differential quality. The values of the bits other than one bit in the m bits are obtained by taking the values of the bits other than one bit in the m bits based on the magnitude of the differential quality of the new beam and the second interval with a quantization step size of x dB, where x is greater than 0 and the second interval is [0, C], where C is determined based on x and n.
[0074] Based on any one of aspects five through eight, in one possible implementation, C = x*(2 n-1 -1).
[0075] Based on any one of the fifth to eighth aspects, in one possible implementation, the differential quality of each new beam is indicated by the value of n bits, where n is an integer greater than or equal to 1; one or more new beams include a first beam and a second beam, the first beam does not satisfy the event occurrence conditions configured by the second communication device for the first communication device, the differential quality of the first beam is indicated by a first value of a first bit string, the first bit string including n bits, the first value being used to indicate that the first beam does not satisfy the event occurrence conditions; the second beam satisfies the event occurrence conditions configured by the second communication device for the first communication device, the signal quality of the second beam is indicated by the value of a second bit string, the second bit string including n bits, the value of the second bit string being obtained based on the differential quality of the second beam and a third interval with a quantization step size of x dB, where x is greater than 0, and the third interval is [0, D] or [-D, 0], where D is determined according to x and n.
[0076] Based on any one of aspects five through eight, in one possible implementation, D = x*(2 n -2).
[0077] Based on any one of aspects five through eight, in one possible implementation, the measurement results of one or more new beams also include the index of one or more new beams.
[0078] Based on any one of the fifth to eighth aspects, in one possible implementation, the index of each new beam is indicated by the value of y bits, where y is an integer greater than or equal to 1.
[0079] Based on any one of the fifth to eighth aspects, in one possible implementation, when the signal quality of the new beam does not meet the conditions for the occurrence of an event configured by the second communication device for the first communication device, the value of y bits is a second value, which is used to indicate that the signal quality of the new beam does not meet the conditions for the occurrence of the event.
[0080] Based on any one of the fifth to eighth aspects, in one possible implementation, one or more new beams include a third beam that satisfies the conditions for the occurrence of an event configured by the second communication device for the first communication device. The differential quality of the third beam is indicated by the values of n bits, which are obtained based on the differential quality of the third beam and the values of the n bits in a fourth interval with a quantization step size of x dB. The fourth interval is [0, E] or [-E, 0], where E is determined based on x and n, where x is greater than 0 and n is an integer greater than or equal to 1.
[0081] Based on any one of aspects five through eight, in one possible implementation, E = x*(2 n -1).
[0082] Based on the fifth or sixth aspect, in one possible implementation, the processing module is further configured to: measure the reference signal corresponding to the service beam from the second communication device, and obtain the measurement result of the service beam.
[0083] Based on the fifth or sixth aspect, in one possible implementation, the transceiver module is also used to: send the measurement results of the service beam to the second communication device.
[0084] Based on the seventh or eighth aspect, in one possible implementation, the transceiver module is further configured to: receive measurement results from the service beam of the first communication device.
[0085] Based on any one of the fifth to eighth aspects, in one possible implementation, the measurement result of the serving beam includes the signal quality of the serving beam; or, the measurement result of the serving beam includes the differential quality of the serving beam, the differential quality of the serving beam being the difference between the signal quality of the serving beam and the signal quality of the new beam with the largest signal quality.
[0086] Based on any one of the fifth to eighth aspects, in one possible implementation, the differential quality of the serving beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the serving beam and the first interval by taking the values of the n bits with a quantization step size of x dB. The first interval is the [A, B] dB interval, where A and B are both determined based on x and n, where x is greater than 0.
[0087] Based on any one of aspects five through eight, in one possible implementation, the signal quality of the serving beam is indicated by the values of q bits, where q is an integer greater than or equal to 1. The values of the q bits are obtained based on the signal quality of the serving beam and the fifth interval, with a quantization step size of LdB or LdBm, where L is greater than 0. Optionally, the fifth interval is the interval [-140, -40] or the interval [-23, 40].
[0088] Based on any one of aspects five through eight, in one possible implementation, the measurement results of the serving beam also include the index of the serving beam.
[0089] Based on any one of aspects five through eight, in one possible implementation, one or more new beams include S new beams, and the measurement results of one or more new beams include S first fields and S second fields. The S first fields correspond one-to-one with the S new beams, and the S second fields correspond one-to-one with the S new beams. Each first field is used to indicate the index of the new beam corresponding to the first field, and each second field is used to indicate the differential quality or signal quality of the new beam corresponding to the second field. The S first fields are located before the S second fields, and S is an integer greater than or equal to 1.
[0090] Based on any one of the fifth to eighth aspects, in one possible implementation, the i-th second field among the S second fields is used to indicate the signal quality or differential quality of the new beam indicated by the i-th first field among the S first fields, where i is an integer greater than or equal to 1 and less than or equal to S.
[0091] Based on any one of the fifth to eighth aspects, in one possible implementation, the measurement result of the serving beam includes a third field, which is used to indicate the signal quality or differential quality of the serving beam, and the third field is located before the S first fields, or after the K first fields and before the S second fields, or after the S second fields.
[0092] Based on the fifth or sixth aspect, in one possible implementation, the transceiver module is further configured to: receive first configuration information from the second communication device, the first configuration information being used to configure one or more events for the first communication device.
[0093] Based on the seventh or eighth aspect, in one possible implementation, the transceiver module is further configured to: send first configuration information to the first communication device, the first configuration information being used to configure one or more events for the first communication device.
[0094] Based on any one of aspects five through eight, in one possible implementation, the events configured by the second communication device for the first communication device include one or more of the following:
[0095] There exists at least one new beam whose signal quality is greater than that of the serving beam, and the difference between the signal quality of at least one new beam and the signal quality of the serving beam is greater than or equal to a first threshold value.
[0096] There exists a new beam whose signal quality is greater than the second threshold.
[0097] The signal quality of the serving beam is less than the third threshold, and there is at least one new beam whose signal quality is greater than the fourth threshold, and the fourth threshold is greater than or equal to the third threshold.
[0098] There exists a new beam whose signal quality is at least one new beam whose signal quality is less than the fifth threshold value;
[0099] The serving beam does not belong to the K best quality new beams measured by the first communication device, where K is an integer greater than or equal to 1;
[0100] There exists a new beam whose signal quality differs from the signal quality of the beam with the worst signal quality in the beam corresponding to the TCI state activated by the second communication device for the first communication device by the first communication device by a value greater than the sixth threshold.
[0101] There exists a new beam whose signal quality differs from the signal quality of the beam with the best signal quality in the beam corresponding to the TCI state where the second communication device is activated by the first communication device by the first communication device by a value greater than the seventh threshold.
[0102] There exist at least two new beams whose signal quality differs from the signal quality of the serving beam by a value greater than the eighth threshold; or,
[0103] There exists at least one new beam whose signal quality is greater than the ninth threshold value of the beam corresponding to the reference signal configured for the first communication device.
[0104] Based on the sixth or eighth aspect, in one possible implementation, the signal quality of the new beam with the highest signal quality is indicated by the value of t bits, where t is an integer greater than or equal to 1. The value of t bits is obtained by taking the value of t bits based on the signal quality of the new beam with the highest signal quality and the sixth interval according to the quantization step size of hdB or hdBm, where t is an integer greater than or equal to 1 and h is greater than 0.
[0105] Based on the fifth or sixth aspect, in one possible implementation, the transceiver module is further configured to: send capability information to the second communication device, the capability information including at least one of the following: whether the first communication device supports the capability of event-triggered reporting; one or more events corresponding to the event-triggered reporting supported by the first communication device; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the first communication device.
[0106] Based on the seventh or eighth aspect, in one possible implementation, the transceiver module is further configured to: receive capability information from the first communication device, the capability information including at least one of the following: whether the first communication device supports the capability of event-triggered reporting; one or more events corresponding to the event-triggered reporting supported by the first communication device; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the first communication device.
[0107] Based on any one of aspects five through eight, in one possible implementation, the serving beam includes any one of the following: the second communication device is the beam corresponding to a QCL type D reference signal in the TCI state indicated by the first communication device; the second communication device is the beam corresponding to an SSB resource associated with a quasi-co-location QCL type D reference signal in the TCI state indicated by the first communication device; the beam corresponding to a QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink / downlink transmission application of the first communication device; the beam corresponding to an SSB resource associated with a QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink / downlink transmission application of the first communication device; the second communication device is the beam corresponding to the reference signal with the best signal quality among the QCL type D reference signals in one or more TCI states activated by the first communication device; the second communication device is the beam corresponding to the reference signal with the worst signal quality among the QCL type D reference signals in one or more TCI states activated by the first communication device; or, the second communication device is the beam corresponding to one or more reference signals configured or indicated by the first communication device for monitoring the serving beam.
[0108] Based on any one of the fifth to eighth aspects, in one possible implementation, one or more new beams include any one of the following: the second communication device is the beam corresponding to the QCL type D reference signal in the TCI state activated by the first communication device; the second communication device is the beam corresponding to the QCL type D reference signal in the TCI state configured by the first communication device; or, the second communication device is the beam corresponding to the reference signal configured by the first communication device for monitoring the one or more new beams.
[0109] Based on the fifth or sixth aspect, in one possible implementation, the processing module is further configured to: determine the number of new beams to be reported for measurement results, and / or determine the number of service beams to be reported for measurement results.
[0110] Based on the fifth or sixth aspect, in one possible implementation, the second communication device is configured or the communication protocol specifies that: if the first communication device reports the measurement results of N new beams, then the number of new beams to be reported is N, where N is an integer greater than or equal to 1; or, the second communication device is configured or the communication protocol specifies that: if the first communication device reports the measurement results of M beams, and the number of serving beams to be reported is P, then the number of new beams to be reported is MP, where M is an integer greater than or equal to 2, and P is an integer greater than or equal to 1; or, the second communication device is configured or the communication protocol specifies that: if the first communication device reports the measurement results of M beams, and the number of serving beams to be reported is P, then the number of new beams to be reported is MP, where M is an integer greater than or equal to 2, and P is an integer greater than or equal to 1; or, the second communication device is configured or the communication protocol specifies that: The protocol stipulates that if the first communication device reports the signal quality of K new beams that meet the conditions for the occurrence of the event configured by the second communication device for the first communication device, then the number of new beams to report the measurement results is K, where K is an integer greater than or equal to 1; or, if the second communication device is configured or the communication protocol stipulates that the first communication device reports the measurement results of N new beams, including K new beams that meet the conditions for the occurrence of the event configured by the second communication device for the first communication device, then the number of new beams to report the measurement results is N, where N is an integer greater than or equal to 2 and K is an integer greater than or equal to 1.
[0111] Based on any one of the fifth to eighth aspects, in one possible implementation, the second communication device is configured or the communication protocol specifies that: the first communication device reports the measurement results of R service beams, where R is an integer greater than or equal to 1, then the number of service beams to report the measurement results is said to be R; or, the second communication device is configured or the communication protocol specifies that: the first communication device does not report the measurement results of the service beams, then the number of service beams to report the measurement results is 0; or, the second communication device is configured or the communication protocol specifies that: the first communication device reports the measurement results of the service beams, and the number of service beams is 1, then the number of service beams to report the measurement results is 1.
[0112] Based on the fifth or sixth aspect, in one possible implementation, the transceiver module is further configured to: receive second configuration information from the second communication device, the second configuration information being configured to configure at least one of the following: whether the first communication device reports the signal quality of the serving beam; whether the first communication device reports the index of the serving beam; the number of beams reported by the first communication device; the number of new beams reported by the first communication device; the number of serving beams reported by the first communication device; the number of new beams reported by the first communication device that satisfy the occurrence conditions of the event configured by the network device for the first communication device; or whether the first communication device reports the measurement results of the serving beam.
[0113] Based on the seventh or eighth aspect, in one possible implementation, the transceiver module is further configured to: send second configuration information to the first communication device, the second configuration information being configured to configure at least one of the following: whether the first communication device reports the signal quality of the serving beam; whether the first communication device reports the index of the serving beam; the number of beams reported by the first communication device; the number of new beams reported by the first communication device; the number of serving beams reported by the first communication device; the number of new beams reported by the first communication device that satisfy the occurrence conditions of the event configured by the second communication device for the first communication device; or whether the first communication device reports the measurement results of the serving beam.
[0114] A ninth aspect of this application provides a communication device comprising a processor and a memory. The memory stores computer programs or computer instructions, and the processor is configured to call and execute the computer programs or computer instructions stored in the memory, causing the processor to implement any one of the implementation methods of any one of the first to fourth aspects.
[0115] Optionally, the communication device may also include a transceiver, and the processor is used to control the transceiver to send and receive signals.
[0116] A tenth aspect of this application provides a communication apparatus, including a processor and an interface circuit. The processor is configured to communicate with other devices via the interface circuit and to perform the method described in any one of the first to fourth aspects. The processor may include one or more devices.
[0117] The eleventh aspect of this application provides a communication device, including a processor for connection to a memory, for calling a program stored in the memory to execute the method described in any one of the first to fourth aspects. The memory may be located within or outside the communication device. The processor may include one or more processors.
[0118] In one implementation, the terminal devices of the first to second aspects and the network devices of the third to fourth aspects can be chips or chip systems.
[0119] Optionally, the first communication device shown in the fifth aspect or the first communication device shown in the sixth aspect may be a terminal device, a communication module in a terminal device, or a chip in a terminal device responsible for communication functions.
[0120] The twelfth aspect of this application provides a computer program product including computer instructions, characterized in that, when run on a computer, it causes the computer to perform any of the implementations of any one of the first to fourth aspects.
[0121] The thirteenth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform any of the implementations of any one of the first to fourth aspects.
[0122] The fourteenth aspect of this application provides a chip device including a processor for calling a computer program or computer instructions in memory to cause the processor to execute any one of the implementations of the first to fourth aspects described above.
[0123] Optionally, the processor is coupled to the memory via an interface.
[0124] The fifteenth aspect of this application provides a communication system including a terminal device and a network device; the terminal device is used to perform the method as shown in the first or second aspect, and the network device is used to perform the method as shown in the third or fourth aspect.
[0125] As described in the above technical solution, the terminal device measures the reference signal corresponding to one or more new beams from the network device, obtaining the measurement results of one or more new beams. These measurement results include the differential quality of the one or more new beams. The differential quality of each new beam is the difference between its signal quality and the signal quality of the terminal device's serving beam. The one or more new beams are beams of the terminal device that are different from the serving beam. The terminal device sends the measurement results of the one or more new beams to the network device. This enables the terminal device to report measurement results for specific types of beams. This allows the network device to decide whether to update the terminal device's serving beam based on the measurement results. Furthermore, reporting the differential quality of the one or more new beams to the network device helps reduce the signaling overhead of the terminal device reporting the measurement results. Attached Figure Description
[0126] Figure 1 This is a schematic diagram of an open RAN (O-RAN or ORAN) system according to an embodiment of this application;
[0127] Figure 2 This is a schematic diagram of the structure of an access network device according to an embodiment of this application;
[0128] Figure 3 This is a schematic diagram of a communication system according to an embodiment of this application;
[0129] Figure 4 This is another schematic diagram of the communication system according to an embodiment of this application;
[0130] Figure 5aThis is a schematic diagram of a scenario where coarse beam alignment is performed between a base station and a terminal device according to an embodiment of this application.
[0131] Figure 5b This is a schematic diagram illustrating a process for coarse beam alignment between a base station and a terminal device according to an embodiment of this application.
[0132] Figure 6a This is a schematic diagram of a scenario for base station beam fine-tuning according to an embodiment of this application;
[0133] Figure 6b This is a schematic diagram of a base station beam fine-tuning process according to an embodiment of this application;
[0134] Figure 7 This is a schematic diagram of a scenario for beam fine-tuning of user equipment (UE) according to an embodiment of this application;
[0135] Figure 8 This is a schematic diagram of one embodiment of the measurement and reporting method of this application;
[0136] Figure 9 This is a schematic diagram of the communication device according to an embodiment of this application;
[0137] Figure 10 This is another structural schematic diagram of the communication device according to an embodiment of this application;
[0138] Figure 11 This is another schematic diagram of the communication device according to an embodiment of this application;
[0139] Figure 12 This is a schematic diagram of the structure of a terminal device according to an embodiment of this application;
[0140] Figure 13 This is a schematic diagram of the structure of a network device according to an embodiment of this application. Detailed Implementation
[0141] This application provides a measurement and reporting method and related apparatus for a terminal device to send measurement results of one or more new beams to a network device. The measurement results of the one or more new beams include the differential quality of the one or more new beams. The differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the terminal device's serving beam; or, the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality. This enables the terminal device to report measurement results for specific types of beams. This allows the network device to decide whether to update the terminal device's serving beam based on the measurement results. Furthermore, reporting the differential quality of the one or more new beams to the network device by the terminal device helps reduce the signaling overhead of the terminal device reporting measurement results.
[0142] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0143] References to "one embodiment" or "some embodiments" as described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0144] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.
[0145] It is understood that in this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information to indicate A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A.
[0146] The technical solutions of this application can be applied to various communication systems. For example, 5th generation (5G) systems, new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication systems (UMTS), mobile communication systems after 5G networks (e.g., 6G mobile communication systems), vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Things (IoT) communication systems, industrial internet communication systems, or satellite communication systems, etc. The wireless communication systems involved in this application also include, but are not limited to, narrowband Internet of Things (NB-IoT) systems.
[0147] The communication systems to which this application applies include terminal equipment and network equipment. Terminal equipment and network equipment are described below.
[0148] Terminal equipment, also known as UE, mobile station (MS), mobile terminal (MT), fixed wireless access (FWA), customer premise equipment (CPE), etc., refers to devices that include wireless communication capabilities (providing voice / data connectivity to users). Examples include handheld devices with wireless connectivity, in-vehicle devices, and machine-type communication (MTC) terminals. Currently, terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving (e.g., drones, vehicles), wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. For example, wireless terminals in self-driving can be drones, helicopters, or airplanes. For example, wireless terminals in vehicle-to-everything (V2X) can be in-vehicle equipment, vehicle-mounted equipment, in-vehicle modules, vehicles, or ships. Wireless terminals in industrial control can be cameras, robots, or robotic arms. Wireless terminals in smart homes can be televisions, air conditioners, robot vacuums, speakers, or set-top boxes. The terminal device can also be a device or module that is connected to the communication system shown above and has corresponding communication functions. The terminal device usually contains a communication module, circuit or chip that performs the corresponding communication function, and the terminal device is also configured with program instructions for performing the corresponding communication function.
[0149] It should be noted that the terminal device can be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, or control unit in the device or apparatus shown above; the specific application is not limited to any particular type. It should also be noted that in this application, when referring to a terminal device, it can refer to the terminal device itself, or to the chip, functional module, or integrated circuit within the terminal device that performs the method provided in this application; the specific application is not limited to any particular type.
[0150] A network device is a device deployed in a radio access network to provide wireless communication functions for terminal devices. Network devices may also be referred to as radio access network (RAN) entities, access nodes, network nodes, access network equipment, or communication devices, etc.
[0151] Specifically, the network equipment can be access network equipment for cellular systems related to the 3rd Generation Partnership Project (3GPP). For example, fourth-generation (4G) mobile communication systems, 5G mobile communication systems, or 6G mobile communication systems. The network equipment can also be access network equipment in open RAN (O-RAN or ORAN) or cloud radio access network (CRAN). Alternatively, the network equipment can also be access network equipment in a communication system formed by the integration of two or more of the above communication systems.
[0152] Network equipment includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home-evolved Node B, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (Wi-Fi) systems, macro base station, micro base station, wireless relay node, donor node, radio controller in CRAN scenarios, wireless backhaul node, transmission point (TP), or transmission and receiving point (TRP). Network equipment can also be access network equipment in 5G mobile communication systems. For example, a next-generation NodeB (gNB) in a new radio (NR) system, a transmission and reception point (TRP), a TP, or one or more antenna panels (including multiple antenna panels) of a base station in a 5G mobile communication system. Alternatively, network equipment can also be network nodes constituting a gNB or transmission point. Examples include a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). CUs and DUs can be separate entities or included in the same network element. For example, a BBU. RUs can be included in radio equipment or radio units. For example, in a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). Alternatively, network equipment can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, in V2X technology, network devices can be roadside units (RSUs).
[0153] It should be noted that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open centralized unit (O-CU) or an open CU, DU can also be called an open distributed unit (O-DU), centralized unit control plane (CU-CP) can also be called an open centralized unit control plane (O-CU-CP) or an open CU-CP, centralized unit user plane (CU-UP) can also be called an open centralized unit user plane (O-CU-UP) or an open CU-UP, and RU can also be called an open radio unit (O-RU). This application does not impose any specific limitations. Any of the units CU, CU-CP, CU-UP, DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.
[0154] Figure 1 This is a schematic diagram of an ORAN system according to an embodiment of this application. The ORAN system includes a core network, access network equipment, and UEs. Optionally, the ORAN system may further include... Figure 1 Other components besides those shown are not specifically limited in this application.
[0155] Access network devices can communicate with the core network (CN) via a backhaul link. Access network devices can also communicate with the UE via an air interface. Specifically, the BBU in the access network device communicates with the core network via a backhaul link. The RU in the access network device communicates with at least one UE via an air interface. The BBU communicates with at least one RU via a fronthaul link; the BBU and RU may or may not be co-located.
[0156] A BBU consists of at least one CU and at least one DU, and the CU and DU can communicate with each other via at least one midhaul link.
[0157] One possible implementation is, such as Figure 2As shown, the CU is a logical node that carries the radio resource control (RRC), service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions of access network equipment. The CU can connect to network nodes such as the core network through interfaces, such as the E2 interface. Optionally, the CU can have some core network functions. The CU (e.g., the PDCP layer and / or higher) connects to the DU (e.g., the radio link control (RLC) layer and lower layers of the DU) through interfaces, such as the F1 interface. Optionally, the F1 interface can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transmission, etc.). F1AP is the application protocol of the F1 interface, defining the signaling procedures of F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.
[0158] Optional, such as Figure 2As shown, the CU can be divided into CU-CP and CU-UP. CU-CP is a logical node carrying the control plane (PDCP-C) layer, which carries the RRC layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's control plane functions. CU-CP can interact with network elements in the core network used to implement control plane functions. These network elements in the core network can be access and mobility function (AMF) network elements, such as the access and mobility management function (AMF) in a 5G system. The AMF network element is responsible for mobility management in the mobile network, such as terminal device location updates, terminal device registration with the network, and terminal device handover. CU-UP is a logical node carrying the user plane (PDCP-U) layer, which carries the SDAP layer and the Packet Data Convergence Protocol layer, and is used to implement the CU's user plane functions. CU-UP can interact with network elements in the core network used to implement user plane functions. These network elements in the core network, such as the user plane function (UPF) in a 5G system, are responsible for data forwarding and receiving in terminal devices. The above CU and DU configurations are merely examples. In practical applications, the functions of the CU and DU can be configured as needed. For instance, the CU or DU can be configured to have more protocol layer functions, or to have only some protocol layer processing functions. For example, some RLC layer functions and protocol layer functions above the RLC layer can be placed in the CU, while the remaining RLC layer functions and protocol layer functions below the RLC layer can be placed in the DU. Furthermore, the functions of the CU or DU can be divided according to service type or other system requirements. For example, based on latency, functions that require low latency can be placed in the DU, while functions that do not require low latency can be placed in the CU.
[0159] One possible implementation is, such as Figure 2 As shown, a DU is a logical node that carries the RLC layer, medium access control (MAC) layer, higher physical layer (Higher PHY) layer, and other functions. In some examples, a DU can control at least one RU. The DU connects to the RU through interfaces, which can be fronthaul interfaces. In some examples, the Higher PHY layer includes the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation, and demodulation.
[0160] One possible implementation is, such as Figure 2 As shown, the RU is a logical node that carries both lower physical layer (PHY) and radio frequency (RF) processing. In some examples, the RU can be a 3GPP transmission reception point (TRP), a remote radio head (RRH), or other similar entities. In some examples, the Low-PHY includes PHY processing functions such as Fast Fourier Transform (FFT), Inverse Fast Fourier Transform (IFFT), digital beamforming, and filtering. The RU communicates with one or more UEs via a radio link.
[0161] The DU and RU can be co-located or not. The DU and RU exchange control plane and user plane information via a fronthaul link through the Lower-Layer Split CUS-Plane (LLS-CUS) interface. LLS-CUS may include a Lower-Layer Split control (LLS-C) interface and a Lower-Layer Splituser (LLS-U) interface, providing the control plane (C-Plane) and user plane (U-Plane) respectively. In some examples, the control plane (C-Plane) refers to real-time control between the DU and RU. The DU and RU exchange management information via a Lower-Layer Split management (LLS-M) interface on the fronthaul link; the management plane (M-Plane) refers to non-real-time management operations between the DU and RU.
[0162] DU and RU can cooperate to implement the functions of the PHY layer. A DU can be connected to one or more RUs. The functions of DU and RU can be configured in various ways depending on the design. For example, a DU can be configured to implement baseband functions, and an RU can be configured to implement mid-RF functions. Another example is that a DU can be configured to implement higher-level functions in the PHY layer, and an RU can be configured to implement lower-level functions in the PHY layer, or to implement both lower-level and RF functions. Higher-level functions in the physical layer can include a portion of the physical layer's functions that are closer to the MAC layer, while lower-level functions in the physical layer can include another portion of the physical layer's functions that are closer to the mid-RF side.
[0163] 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.
[0164] It should be noted that network devices can be devices or apparatuses with chips, or devices or apparatuses with integrated circuits, or chips, chip systems, modules, or control units in the devices or apparatuses shown above; this application does not impose any specific limitations. It should also be noted that in this application, the term "network device" can refer to the network device itself, or to chips, functional modules, or integrated circuits within the network device that implement the methods provided in this application; this application does not impose any specific limitations.
[0165] To facilitate understanding of the technical solutions in the embodiments of this application, the following is combined with... Figure 3 and Figure 4 Two possible communication systems to which the method provided in the embodiments of this application is applicable are shown.
[0166] Figure 3 This is a schematic diagram of a communication system according to an embodiment of this application. Figure 3 As shown, the communication system includes at least one network device and at least one terminal device. For example, such as Figure 3 The network device 311, terminal device 321, and terminal device 322 are shown. Network device 311 can transmit data with terminal devices 321 and 322. The technical solutions of this application can be implemented between network device 311 and terminal devices 321 or 322.
[0167] Figure 4 This is another schematic diagram of the communication system according to an embodiment of this application. For example... Figure 4 As shown, the communication system may include at least two network devices and at least one terminal device. For example, as Figure 4 The network devices 411, 412, 413, and terminal device 421 are shown. Terminal device 421 can be provided with communication services by multiple network devices. For example, such as... Figure 4As shown, network device 411 can transmit data with terminal device 421, network device 412 can transmit data with terminal device 421, and network device 413 can transmit data with terminal device 421. That is, a terminal device can be provided with communication services simultaneously by multiple network devices. The technical solutions of this application can be implemented between terminal device 421 and network devices 411, 412, or 413.
[0168] To facilitate understanding of the technical solution of this application, some technical terms involved in this application will be introduced below.
[0169] 1. Beam: A beam is a communication resource. A beam can be wide, narrow, or other types of beams, and the technology used to form a beam can be beamforming technology or other techniques. Beamforming technology can specifically be digital beamforming technology, analog beamforming technology, and hybrid digital / analog beamforming technology. Different beams can be considered different resources.
[0170] In the NR protocol, a beam can be referred to as a spatial domain filter, spatial filter, spatial domain parameter, spatial parameter, spatial domain setting, spatial setting, quasi-colocation (QCL) information, QCL assumption, or QCL indication, etc. The beam can be indicated by the transmission configuration indicator state (TCI-state) parameter or by the spatial relation parameter. Therefore, in this application, the beam can be replaced by spatial domain filter, spatial filter, spatial parameter, spatial parameter, spatial setting, spatial setting, QCL information, QCL assumption, QCL indication, TCI-state (including uplink TCI-state and downlink TCI-state), or spatial relation, etc. These terms are also equivalent to each other. The beam can also be replaced with other beam-related terms, which are not limited herein.
[0171] The beam used to transmit signals can be referred to as a transmission beam (Tx beam), a spatial domain transmission filter, a spatial transmission filter, a spatial domain transmission parameter, a spatial transmission parameter, a spatial domain transmission setting, or a spatial transmission setting. The transmission beam can also be called a downlink beam. In this application, the transmission beam, downlink beam, channel status information reference signal (CSI-RS), TCI State, downlink / joint transmission configuration number state (DLorjointTCI state), synchronization signal and PBCH block (SSB), and tracking reference signal (TRS) can be interchanged.
[0172] The beam used to receive signals can be referred to as a reception beam (Rx beam), a spatial domain reception filter, a spatial reception filter, a spatial domain reception parameter, a spatial reception parameter, a spatial domain reception setting, or a spatial reception setting. The uplink transmit beam can be indicated by any of the following: spatial relation, uplink TCI-state, or sounding reference signal (SRS) resource (indicating the transmit beam using that SRS). The receive beam can also be referred to as the uplink beam. In this application, the receive beam, uplink beam, uplink transmission configuration number state (UL TCI state), DLorjointTCI state, sounding reference signal (SRS), CSI-RS, SSB, and TRS can be interchanged.
[0173] The transmitting beam can refer to the distribution of signal strength in different directions in space after a signal is transmitted through an antenna, while the receiving beam can refer to the distribution of signal strength in different directions in space of a wireless signal received from an antenna.
[0174] Furthermore, the beam can be a wide beam, a narrow beam, or other types of beam. The beamforming technology can be beamforming technology or other technologies. Specifically, beamforming technology can be digital beamforming technology, analog beamforming technology, hybrid digital beamforming technology, or hybrid analog beamforming technology, etc.
[0175] Beams are generally associated with resources. For example, during beam measurement, network devices measure different beams using different resources. The terminal devices provide feedback on the measured resource quality, allowing the network devices to determine the quality of the corresponding beam. During data transmission, beam information is also indicated through its corresponding resources. For instance, network devices use the TCI field in downlink control information (DCI) to indicate the physical downlink shared channel (PDSCH) beam information of the terminal devices.
[0176] In one possible implementation, multiple beams with the same or similar communication characteristics are considered as a single beam. A beam may include one or more antenna ports for transmitting data channels, control channels, and probe signals, etc. The one or more antenna ports forming a beam can also be considered as a set of antenna ports.
[0177] 2. Quasi-Co-location: Quasi-co-location indicates that multiple resources share one or more identical or similar communication characteristics. For multiple resources with quasi-co-location, identical or similar communication configurations can be used. For example, if two antenna ports have quasi-co-location, the large-scale channel characteristics of one port transmitting one symbol can be inferred from the large-scale channel characteristics of the other port transmitting one symbol. Large-scale characteristics can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receive parameters, terminal equipment receive beam number, transmit / receive channel correlation, receive angle of arrival, spatial correlation of receiver antennas, angel-of-arrival (AoA), average angle of arrival, AoA spread, etc. Specifically, this co-location indication is used to indicate whether at least two sets of antenna ports have a co-location relationship, including: the co-location indication indicating whether the channel state information reference signals transmitted by at least two sets of antenna ports originate from the same transmission point, or the co-location indication indicating whether the channel state information reference signals transmitted by at least two sets of antenna ports originate from the same beamgroup.
[0178] 3. TCI: Also known as TCI state. In both uplink and downlink transmission, correct beamforming is required for proper transmission between network devices and terminal devices. In downlink transmission, the network device needs to indicate its downlink transmit beam to the terminal device. The terminal device can then determine a suitable receive beam to receive information from the network device. In uplink transmission, the network device also needs to indicate to the terminal device which uplink transmit beam it uses to send information. The network device can determine the uplink transmit beam with better signal quality for the terminal device. Both uplink and downlink transmit beams can be indicated by their respective TCI states. Specifically, the downlink transmit beam can be indicated by the downlink TCI state, and the uplink transmit beam by the uplink TCI state.
[0179] In the 3GPP protocol, network devices can indicate the TCI status to terminal devices through the TCI field in the downlink control information (DCI). The TCI field is 3 bits in size and can be represented by 8 different codepoints. Each codepoint value of the TCI field can be associated with an index of a TCI status. This index uniquely identifies a TCI status, which can be either a downlink TCI status or an uplink TCI status. Each codepoint value of the TCI field can also be associated with two TCI status indices, which uniquely identify two TCI statuses, including one downlink TCI status and one uplink TCI status.
[0180] The downlink TCI status includes several parameters that terminal devices can use to determine information related to the downlink transmit beam, thereby determining the appropriate receive beam to receive information from the network device. The TCI status is configured by the network device for each terminal device, and the structure of the downlink TCI status is shown below:
[0181]
[0182] Each TCI state includes its own index (tci-StateId) and two quasi-colocation information (QCL-info) entries. Each QCL-info entry includes a reference signal resource, indicating that the downlink transmission for that TCI state should use the same downlink timing, frequency offset, or receive beam as that reference signal resource. This is determined by the type of the QCL-info entry. The QCL type can have four values: {typeA, typeB, typeC, typeD}. When the QCL type is typeA, typeB, or typeC, the downlink transmission should use the same downlink timing and frequency offset as that reference signal resource. When the QCL type is typeD, the downlink transmission should use the same receive beam as that reference signal resource. Of the two QCL-info entries mentioned above, one is typeD, and the other is typeA, typeB, or typeC. The terminal device can determine which receive beam to use to receive the corresponding downlink transmission by using the typeD QCL-info entry. The specific execution steps are as follows:
[0183] Network devices indicate a specific downlink TCI state to terminal devices via DCI. The terminal device identifies a reference signal resource in the QCL information for this downlink TCI state (type D). The terminal device then uses the receive beam of this reference signal resource as the receive beam for downlink transmission. It should be noted that the receive beam of this reference signal resource is obtained by the terminal device in advance through a beam management process. Through this beam management process, the terminal device can determine which receive beam is optimal for receiving the reference signal resource and select that beam as the receive beam for that reference signal resource.
[0184] The uplink TCI state includes a reference signal resource, which indicates that uplink transmissions using this TCI state should employ the same uplink transmit beam as the reference signal resource. The terminal device can determine which transmit beam to use for uplink transmission by using this reference signal resource. In the uplink TCI state, the reference signal resource is not included in the QCL-info and does not distinguish between QCL types, because it does not need to reference uplink timing and frequency offset information; only the uplink transmit beam needs to be referenced. The structure of the uplink TCI state is as follows:
[0185]
[0186] The specific execution steps are as follows:
[0187] Network devices indicate a specific uplink TCI state to terminal devices via DCI. The terminal device then determines the reference signal resource within that uplink TCI state. The terminal device uses the transmission beam of this reference signal resource as its uplink transmission beam. It should be noted that the transmission beam of this reference signal resource is obtained by the terminal device in advance through a beam management process.
[0188] The following describes the configuration, activation, and indication of TCI status.
[0189] TCI-state configuration: Network devices configure multiple TCI-states to terminal devices via RRC signaling. Each of these TCI-states includes a QCL-Info of type type D. Network devices can also configure TCI-states that do not include a QCL-Info of type type D; however, these TCI-states are not used for data transmission beam indication and will not be discussed further here.
[0190] TCI-state activation: After configuring multiple TCI-states on a network device, eight of them need to be activated via the medium access control element (MAC CE). These eight TCI-states correspond one-to-one with the eight values of the TCI field in the DCI. That is, which eight TCI-states correspond to the eight values of the TCI field in the DCI is determined by the MAC CE.
[0191] TCI Status Indication: Network devices indicate a specific TCI-state through the TCI field in the DCI. For example, if the TCI field value in the DCI sent by the network device to the terminal device is 000, it indicates that the data transmission beam uses the TCI state corresponding to 000. The reference signal contained in the type D QCL-Info within this TCI state is the channel state information-reference signal (CSI-RS) with index #1, indicating that the beam used for data transmission is the same as the receiving beam corresponding to CSI-RS with index #1. The receiving beam corresponding to CSI-RS with index #1 can be determined through beam measurement procedures and is known to the terminal device. Therefore, by using the specific value of the TCI field, the terminal device can determine the beam corresponding to the data transmission beam and thus use the appropriate beam to send or receive data.
[0192] It should be noted that the three descriptions of TCI state, TCI-state, and TCI state in this article can be used interchangeably.
[0193] In this application, the reference signal of type QCLtypeD in the TCI state is the reference signal resource corresponding to the reference signal resource in the QCL information of typeD in the TCI state.
[0194] Currently, terminal devices and network devices select appropriate beams through a beam management process and communicate using those beams. The beam management process includes: first, coarse beam alignment based on the SSB (Solar Signal Block), and then fine beam adjustment based on the CSI-RS (Cyber-Independent Signaling System). The beam management process can be divided into three stages, which are described below.
[0195] Phase 1: Coarse beam alignment between network devices and terminal devices.
[0196] The base station performs beam scanning. Specifically, for example... Figure 5aAs shown, the base station transmits SSBs to the terminal device at different times using beams from different directions. Simultaneously, the terminal device scans and receives beams, meaning it also receives SSBs from the network device at different times using beams from different directions. The terminal device determines the optimal beam for base station signal transmission and the optimal beam for terminal device signal reception based on the received signal strength. The beam used for base station signal transmission is simply called the base station beam, and the beam used for terminal device signal reception is simply called the terminal beam.
[0197] Specifically, the base station beam includes Terminal beams include like Figure 5b As shown, the base station sends SSB resource configuration information and reports resource configuration information to the terminal device. The base station beams include beams B0 to B15, i.e., M=5. The terminal beams include beams U0 to U3, i.e., N=4. The base station uses beam B0 to send SSBs to the terminal device through the corresponding SSB resources, uses beam B1 to send SSBs to the terminal device, and so on, using beam B5 to send SSBs to the terminal device. The terminal device measures the SSBs sent by the base station through beams B0 to B5 respectively through beams U0 to U3, and obtains the measurement results. The terminal device can determine the base station beam with better or better signal quality based on the measurement results. The terminal device feeds back the base station beam with better or better signal quality to the network device. It should be noted that in Phase 1, both the base station beams and the terminal beams can be understood as wide beams.
[0198] Phase Two: Base Station Beam Fine-Tuning.
[0199] The base station determines multiple first candidate beams based on the base station beam with the best or best signal quality identified in Phase 1. Each first candidate beam is a narrow beam. Specifically, for example... Figure 6a As shown, the plurality of first candidate beams includes beams S0 to S2. For example, in the first stage described above, beam B3 is determined. This beam B3 is a wide beam, and the base station determines beams S0 to S2 based on beam B3. The terminal device determines the preferred terminal beam as beam U1 through the first stage described above. Figure 6b As shown, the base station sends CSI-RS configuration information to the terminal device. The network device uses beam S0 to send CSI-RS to the terminal device through the corresponding CSI-RS resources, uses beam S1 to send CSI-RS to the terminal device through the corresponding CSI-RS resources, and uses beam S2 to send CSI-RS to the terminal device through the corresponding CSI-RS resources. The terminal device receives the CSI-RS sent by the base station through different beams via beam U1 and obtains the measurement results. The terminal device can determine the candidate beam with better or best signal quality based on the measurement results. The terminal device then feeds back the first candidate beam with better or best signal quality to the network device. For example, as... Figure 7 As shown, the first candidate beam with better or better signal quality is beam S1. The base station uses this first candidate beam with better or better signal quality as the beam for communication with the terminal equipment.
[0200] Phase 3: UE beam fine-tuning.
[0201] The base station uses beam S1 to send CSI-RS to the terminal device, and the terminal device determines the superior terminal beam as beam U1 through Phase 1. Beam U1 is a wide beam. The terminal device determines multiple second candidate beams based on beam U1, such as... Figure 7 As shown, multiple second candidate beams include beams P1 to P4. The terminal device receives the CSI-RS transmitted by the base station through beam S1 via beams P1 to P4 to obtain the measurement results. The terminal device can select one beam from beams P1 to P4 based on the measurement results and use that beam as the beam for communication with network devices.
[0202] Network devices can be configured to allow terminal devices to report measurement results using one of three methods: periodic reporting, semi-persistent reporting, and aperiodic reporting. Semi-persistent reporting is also known as semi-static reporting.
[0203] Periodic Reporting: The network device sends reference signal resource configuration information to the terminal device. This reference signal resource configuration information includes periodic reference signal resources. The network device configures the terminal device with periodic measurement reference signals. The terminal device can periodically measure the reference signals based on this reference signal resource configuration information and periodically report the measurement results. Optionally, the measurement results obtained from the terminal device's periodic measurement reference signals can be carried on physical uplink control channel (PUCCH) resources.
[0204] Semi-persistent reporting: The terminal device periodically measures the reference signal, but reports the measurement results using a semi-persistent reporting method. In one possible implementation, the network device sends reference signal resource configuration information to the terminal device. This information includes periodic reference signal resources. The network device configures the terminal device's periodic measurement reference signal. When the terminal device receives an activation signaling message (e.g., MAC CE, or DCI) from the network device, it can continuously report the measurement results. Alternatively, the network device can send a deactivation command to the terminal device to deactivate its semi-persistent reporting process. In another possible implementation, both the measurement of the reference signal and the reporting of the measurement results are semi-persistent. When the terminal device receives an activation signaling message from the network device, it continuously measures the reference signal and reports the measurement results. When the terminal device receives a deactivation command from the network device, it stops reporting the measurement results. Furthermore, the measurement results can be carried on PUCCH resources or Physical Uplink Shared Channel (PUSCH) resources.
[0205] Aperiodic reporting: When the terminal device receives a trigger command from the network device, it measures a reference signal and reports the measurement result. After completing the reporting, the terminal device stops reporting the measurement result. Optionally, the reference signal can be a periodic reference signal, a semi-persistent reference signal, or an aperiodic reference signal. Optionally, the measurement result is carried on the PUSCH resource.
[0206] Therefore, measurement results are either reported periodically or triggered by network devices sending instruction signals to the terminal devices for semi-continuous or non-periodic reporting. This means the timing of reporting is entirely determined by the network devices. Release 19 introduces UE- or event-triggered reporting of measurement results, thus avoiding unnecessary reporting and resource waste.
[0207] Network devices and terminal devices can select appropriate beams through a beam management process. Then, they communicate using the selected beams. The terminal device can also continue to measure the signal quality of multiple beams configured for it by the network device. The terminal device then periodically reports the signal quality of at least one beam with the best measured signal quality.
[0208] In the communication protocol, when the network device configures the reporting quantity (reportQuantity) in the terminal device's channel state information report configuration (csi-reportConfig) to be channel state information-reference signal received power ('cri-RSRP'), synchronization signal-broadcast block-index-reference signal received power ('ssb-Index-RSRP'), channel state information-reference signal received power-index ('cri-RSRP-Index'), or synchronization signal-broadcast block-index-reference signal received power-index ('ssb-Index-RSRP-Index'), the terminal device reports the RSRP corresponding to the reference signal.
[0209] If the network device configures the terminal device to report the number of reference signals (nrofReportedRS) as 1, or the network device configures the terminal device to report the number of cells and the number of reference signals reported by each cell as 1, then the terminal device reports the RSRP of the reference signal measured by the terminal device using 7 bits in the range of [-140, -44] dBm with a quantization step size of 1 dB.
[0210] If the network device configures the number of reference signals reported by the terminal device (nrofReportedRS) to be greater than 1, or the network device enables group-based beam reporting for the terminal device, or enables group-based beam reporting-r17 for the terminal device, or the network device configures the number of cells reported by the terminal device or the number of reference signals per cell to be greater than 1, then the terminal device uses 7 bits in the [-140, -44] dBm range with a quantization step size of 1 dB to report the RSRP of the reference signal with the highest signal quality. The terminal device also uses 4 bits in the range with a quantization step size of 2 dB to report the difference in RSRP of the other reference signals measured by the terminal device, excluding the reference signal with the highest signal quality. This difference in RSRP of the other reference signals refers to the difference between the RSRP of the other reference signal and the RSRP of the reference signal with the highest signal quality.
[0211] When the network device configures the reporting quantity in the terminal device's channel state information report configuration (csi-reportConfig) as channel state information-signal-noise ratio ('cri-SINR') or synchronization signal-broadcast block-index-reference signal received power-signal-noise ratio ('ssb-Index-SINR') or channel state information-signal-noise ratio-index ('cri-SINR-Index') or synchronization signal-broadcast block-index-signal-noise ratio-index ('ssb-Index-SINR-Index'), the terminal device reports the SINR corresponding to the reference signal.
[0212] If the network device configures the terminal device to report the number of reference signals (nrofReportedRS) as 1, or the network device configures the terminal device to report the number of cells and the number of reference signals reported by each cell as 1, then the terminal device reports the SINR of the reference signal measured by the terminal device using 7 bits in the [-23,40]dB range with a quantization step size of 1dB.
[0213] If the network device configures the number of reference signals reported by the terminal device (nrofReportedRS) to be greater than 1, or if the network device enables group-based beam reporting for the terminal device, then the terminal device reports the SINR of the reference signal with the highest signal quality using 7 bits in the [-23, 40] dB range with a quantization step size of 0.5 dB. The terminal device also reports the difference in SINR between the other reference signals measured by the terminal device and the reference signal with the highest signal quality using 4 bits with a quantization step size of 1 dB. The difference in SINR between the other reference signals refers to the difference between the SINR of the other reference signal and the SINR of the reference signal with the highest signal quality. Therefore, when the terminal device reports the signal quality of multiple beams, it does not distinguish between the types of multiple beams. This prevents the terminal device from specifically reporting the signal quality of different types of beams. Consequently, the network device cannot decide whether to update the serving beam of the terminal device.
[0214] This application provides a corresponding technical solution for a terminal device to send measurement results of one or more new beams to a network device. The measurement results of the one or more new beams include the differential quality of at least one new beam. The differential quality of each of the one or more new beams is the difference between the signal quality of each new beam and the signal quality of the terminal device's serving beam. This enables the terminal device to report measurement results for specific types of beams. This allows the network device to decide whether to update the terminal device's serving beam based on the measurement results. Furthermore, reporting the differential quality of the one or more new beams to the network device by the terminal device helps reduce the signaling overhead of the terminal device reporting measurement results.
[0215] In this application, an event refers to an event related to a UE-initiated report, an event related to a measurement result report initiated by the terminal device, an event related to a report (or measurement result) after the terminal device actively performs a measurement, or an event related to specific conditions for a measurement result report initiated by the terminal device. For example, the terminal device may actively perform measurements (such as beam measurements or channel measurements) to obtain measurement results related to the event. Another example is that the terminal device may perform measurements based on reference signals according to the configuration of reference signal resources to obtain measurement results related to the event. Yet another example is that the terminal device actively performs measurements and reports measurement results related to the event when specific conditions are met. The event may also be referred to as any of the following: a trigger event, a layer 1 (L1) trigger event, a channel state information (CSI) measurement reporting trigger event, a beam measurement reporting trigger event, an L1 CSI reporting trigger event, an L1 beam measurement reporting trigger event, etc. The naming of these events is not limited in this application.
[0216] In this application, the signal quality can optionally be reference signal receiving power (RSRP), signal to interference plus noise ratio (SINR), layer 1 reference signal receiving power (L1-RSRP), layer 1 signal to interference plus noise ratio (L1-SINR), synchronization signal reference signal receiving power (SS-RSRP), channel status information reference signal receiving power (CSI-RSRP), synchronization signal to interference plus noise ratio (SS-SINR), or channel status information signal to interference plus noise ratio (CSI-SINR). This application does not impose any specific limitations on the type of signal quality.
[0217] In this application, "<" indicates less than, and "≤" indicates less than or equal to. The examples provided in this application are merely illustrative and do not constitute a limitation on this application. "<" and "≤" in the examples are interchangeable, and this application does not impose any specific limitations. ">" indicates greater than, and "≥" indicates greater than or equal to. ">" and "≥" in the examples are interchangeable, and this application does not impose any specific limitations. The examples provided in this application are merely illustrative and do not constitute a limitation on this application.
[0218] In this application, optionally, the new beam with the best signal quality refers to the new beam with the best signal quality among one or more new beams reported by the terminal device. The serving beam with the best signal quality refers to the serving beam with the best signal quality among one or more serving beams reported by the terminal device. Alternatively, the serving beam with the best signal quality refers to the serving beam with the best signal quality among one or more serving beams measured by the terminal device.
[0219] The technical solution of this application is described below with reference to specific embodiments.
[0220] Figure 8 This is a schematic diagram of one embodiment of the measurement and reporting method of this application. Please refer to... Figure 8 The methods include:
[0221] 801. The network device sends one or more reference signals corresponding to new beams to the terminal device. Correspondingly, the terminal device receives one or more reference signals corresponding to new beams from the network device.
[0222] Specifically, the network device transmits a reference signal to the terminal device through one or more new beams. Correspondingly, the terminal device receives the reference signal from the network device.
[0223] The one or more new beams are beams of the terminal device that are different from the serving beam of the terminal device. For example, the one or more new beams are candidate beams of the terminal device. Optionally, the reference signal corresponding to the one or more new beams can be described as: a reference signal corresponding to one or more candidate beams, one or more candidate reference signals, one or more new beam measurement resources, or one or more candidate beam measurement resources, which is not specifically limited in this application.
[0224] The following describes some possible implementations of the one or more new beams. Other implementations are also applicable to this application, and are not specifically limited herein. Optionally, the one or more new beams include any of the following:
[0225] 1. The beam corresponding to the QCL type D reference signal in the TCI state activated by the network device for the terminal device.
[0226] Optionally, the reference signal corresponding to the one or more new beams can also be described as one or more candidate reference signals.
[0227] In this implementation, optionally, the one or more candidate reference signals include QCL type D reference signals in the TCI state activated by the network device for the terminal device.
[0228] Optionally, the reference signal corresponding to the one or more new beams can also be described as one or more new beam measurement resources.
[0229] In this implementation, optionally, the one or more new beam measurement resources include reference signal resources corresponding to the QCL type D reference signal in the TCI state activated by the network device for the terminal device.
[0230] 2. The beam corresponding to the QCL type D reference signal in the TCI state configured by the network device for the terminal device.
[0231] Optionally, the reference signal corresponding to the one or more new beams can also be described as one or more candidate reference signals.
[0232] In this implementation, optionally, the network device configures the QCL type D reference signal in the TCI state for the terminal device.
[0233] Optionally, the reference signal corresponding to the one or more new beams can also be described as one or more new beam measurement resources.
[0234] In this implementation, optionally, the one or more new beam measurement resources include reference signal resources corresponding to the QCL type D reference signal in the TCI state configured by the network device for the terminal device.
[0235] 3. The network device is configured for the terminal device to monitor the reference signal corresponding to the one or more new beams.
[0236] Optionally, the reference signal corresponding to the one or more new beams can also be described as one or more candidate reference signals.
[0237] In this implementation, optionally, the network device configures a reference signal for the terminal device to monitor the one or more new beams.
[0238] Optionally, the reference signal corresponding to the one or more new beams can also be described as one or more new beam measurement resources.
[0239] In this implementation, optionally, the one or more new beam measurement resources include reference signal resources configured by the network device for the terminal device to monitor the reference signals of the one or more new beams.
[0240] Optionally, the reference signal may be SSB, CSI-RS, SRS, TRS, or a road loss reference signal; this application does not specify the specific type.
[0241] 802. The terminal equipment measures the reference signal corresponding to the one or more new beams to obtain the measurement results of the one or more new beams.
[0242] The following describes two possible implementations of the measurement results of one or more new beams. Other implementations are also applicable to this application, and this application does not limit the specific implementation.
[0243] Implementation Method 1: The measurement results of the one or more new beams include the differential quality of the one or more new beams. The differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the serving beam of the terminal device.
[0244] In one possible implementation, the terminal device includes a serving beam. The differential quality of each of the one or more new beams can be the difference between the signal quality of each new beam and the signal quality of the serving beam.
[0245] In another possible implementation, the terminal device includes multiple serving beams, where the differential quality of each new beam can be the difference between the signal quality of each new beam and the signal quality of one of the serving beams. For example, one of the serving beams could be the serving beam with the highest signal quality, the serving beam with the lowest signal quality, or a serving beam indicated by the network device.
[0246] The above describes one possible implementation of the differential quality of the one or more new beams. The following describes another possible implementation of the differential quality of the one or more new beams. Optionally, the terminal device includes multiple serving beams, and the differential quality of each new beam is the average of the differences between the signal quality of each new beam and the signal quality of each of the multiple serving beams, or a weighted sum of the differences between the signal quality of each new beam and the signal quality of each of the multiple serving beams. The following text mainly uses the implementation shown in the first described above as an example to introduce the technical solution of this application.
[0247] Optionally, the one or more new beams may include a new beam with signal quality greater than or equal to that of the serving beam. Further, the one or more new beams may also include a new beam with signal quality less than or equal to that of the serving beam. For a new beam, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. Alternatively, the differential quality of the new beam is equal to the signal quality of the serving beam minus the signal quality of the new beam. Therefore, the differential quality of the new beam can be positive or negative. For example, if the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam, a negative differential quality indicates that the signal quality of the new beam is lower than that of the serving beam; a positive differential quality indicates that the signal quality of the new beam is higher than that of the serving beam. For example, the differential quality of a new beam is equal to the signal quality of the serving beam minus the signal quality of the new beam. When the differential quality of the new beam is negative, it means that the signal quality of the new beam is higher than that of the serving beam; when the differential quality of the new beam is positive, it means that the signal quality of the new beam is lower than that of the serving beam.
[0248] The following describes several possible indication methods for the differential quality of the one or more new beams in the first implementation described above. Other indication methods are also applicable to this application, and this application does not limit them specifically.
[0249] Indication Method 1: The differential quality of each new beam is indicated by the values of n bits. These n bits are derived from the differential quality of the new beam and the values of the first interval using a quantization step size of x dB. The first interval is either the [A, B] dB interval, the [A, B) interval, the (A, B] interval, or the (A, B) interval, where A and B are determined by x and n. x is greater than 0, and n is an integer greater than or equal to 1. The unit of differential quality is dB. The quantization step size can also be replaced with step size, quantization precision, accuracy, etc., which are not limited in this application.
[0250] In one possible implementation, A = -x * 2 n-1 B = x*(2 n-1 -1). The first interval can also be represented as ≤-x*2. n-1 dB~≥x*(2 n-1 -1) dB, or <-x*2 n-1 dB~≥x*(2 n-1 -1)dB, or ≤-x*2 n-1 dB~>x*(2 n -1 -1)dB, or -x*2 n-1 dB~x*(2 n-1 -1)dB. For example, n=4, the quantization step size is 2dB, A=-16, B=14, and the values of the n bits can be from 0000 to 1111, for a total of 16 possible values.
[0251] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. The quantization step size is 2dB. Optionally, the 16 possible values correspond to differential qualities of the new beam of ≤-16, -14, -12, ..., 0, 2, ..., or ≥14dB.
[0252] As shown in Table 1, the differential quality of new beam #1 is indicated by the value of four bits. A value of 0000 indicates that the signal quality of new beam #1 is at least 16 dB lower than the signal quality of the serving beam. In other words, the differential quality of new beam #1 is -16 dB or less. The differential quality of new beam #2 is indicated by the value of four bits, and a value of 0001 indicates that the signal quality of new beam #2 is 14 dB lower than the signal quality of the serving beam. In other words, the differential quality of new beam #2 is -14 dB. The differential quality of new beam #3 is indicated by the value of four bits, and a value of 1110 indicates that the signal quality of new beam #3 is 12 dB higher than the signal quality of the serving beam. In other words, the differential quality of new beam #3 is 12 dB. The differential quality of the new beam #4 is indicated by the value of four bits. If the value of these four bits is 1111, it means that the signal quality of the new beam #4 is at least 14dB higher than that of the serving beam. In other words, the differential quality of the new beam #4 is 14dB or greater.
[0253] Table 1
[0254]
[0255] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. The quantization step size is 2dB. Optionally, the differential quality w1 of the new beam corresponding to these 16 possible values are: w1 < -16, -16 ≤ w1 < -14, -14 ≤ w1 < -12, ..., -2 ≤ w1 < 0, 0 ≤ w1 < 2, ..., 12 ≤ w1 < 14, or w1 ≥ 14dB. As shown in Table 2, the differential quality of the new beam #1 is indicated by the value of four bits. If the value of these four bits is 0000, it means that the signal quality of the new beam #1 is at least 16dB lower than the signal quality of the serving beam. That is, the differential quality of the new beam #1 is < -16dB. The differential quality of new beam #2 is indicated by a four-bit value. A value of 0001 indicates that the signal quality of new beam #2 is 14dB to 16dB lower than the signal quality of the serving beam. In other words, the differential quality of new beam #2 falls within the range of [-16, -14)dB. The differential quality of new beam #3 is indicated by a four-bit value. A value of 1110 indicates that the signal quality of new beam #3 is 12dB to 14dB higher than the signal quality of the serving beam. In other words, the differential quality of new beam #3 falls within the range of [12, 14)dB. The differential quality of new beam #4 is indicated by a four-bit value. A value of 1111 indicates that the signal quality of new beam #4 is at least 14dB higher than the signal quality of the serving beam. In other words, the differential quality of new beam #4 is ≥14dB.
[0256] Table 2
[0257]
[0258] In another possible implementation, A = -x*(2 n-1 -1), B=x*2 n-1 The first interval can also be represented as ≤-x*(2 n-1 -1)dB~≥x*2 n-1 dB, or <-x*(2 n-1 -1)dB~≥x*2 n-1 dB, or ≤-x*(2 n-1 -1)dB ~>x*2 n-1 dB, or -x*(2 n-1 -1)dB~x*2 n-1 dB. For example, n=4, the quantization step size is 2dB, A=-14, B=16, and the values of the n bits can be from 0000 to 1111, for a total of 16 possible values.
[0259] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. The quantization step size is 2dB. Optionally, the 16 possible values correspond to differential qualities of the new beam of ≤-14, -12,…,0,2,…, or ≥16dB.
[0260] As shown in Table 3, the differential quality of new beam #1 is indicated by the value of four bits. A value of 0000 indicates that the signal quality of new beam #1 is at least 14 dB lower than the signal quality of the serving beam. In other words, the differential quality of new beam #1 is -14 dB or less. The differential quality of new beam #2 is indicated by the value of four bits, and a value of 0001 indicates that the signal quality of new beam #2 is 12 dB lower than the signal quality of the serving beam. In other words, the differential quality of new beam #2 is -12 dB. The differential quality of new beam #3 is indicated by the value of four bits, and a value of 1110 indicates that the signal quality of new beam #3 is 14 dB higher than the signal quality of the serving beam. In other words, the differential quality of new beam #3 is 14 dB. The differential quality of the new beam #4 is indicated by the value of four bits. If the value of these four bits is 1111, it means that the signal quality of the new beam #4 is at least 16dB higher than that of the serving beam. In other words, the differential quality of the new beam #4 is 16dB or greater.
[0261] Table 3
[0262]
[0263]
[0264] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. The quantization step size is 2dB. Optionally, the 16 possible values correspond to the differential quality w1 of the new beam as w1 < -14, -14 ≤ w1 < -12, -12 ≤ w1 < -10, ..., -2 ≤ w1 < 0, 0 ≤ w1 < 2, ..., 12 ≤ w1 < 14, 14 ≤ w1 < 16, or w1 ≥ 16dB. As shown in Table 4, the differential quality of the new beam #1 is indicated by the value of four bits. If the value of these four bits is 0000, it means that the signal quality of the new beam #1 is at least 14dB lower than the signal quality of the serving beam. That is, the differential quality of the new beam #1 is < -14dB. The differential quality of new beam #2 is indicated by a four-bit value. A value of 0001 indicates that the signal quality of new beam #2 is 12dB to 14dB lower than the signal quality of the serving beam. In other words, the differential quality of new beam #2 falls within the range of [-14, -12)dB. The differential quality of new beam #3 is indicated by a four-bit value. A value of 1110 indicates that the signal quality of new beam #3 is 10dB to 12dB higher than the signal quality of the serving beam. In other words, the differential quality of new beam #3 falls within the range of [10, 12)dB. The differential quality of new beam #4 is indicated by a four-bit value. A value of 1111 indicates that the signal quality of new beam #4 is at least 16dB higher than the signal quality of the serving beam. In other words, the differential quality of new beam #4 is ≥16dB.
[0265] Table 4
[0266]
[0267] Indication Method 2: The differential quality of each new beam is indicated by the values of m bits. The value of one bit in the m bits represents whether the differential quality of the new beam is positive or negative. The values of the remaining bits in the m bits represent the magnitude of the differential quality. These values are derived from the magnitude of the differential quality of the new beam and the second interval, using a quantization step size of xdB. In other words, the differential quality indicated by the values of the remaining bits in the m bits belongs to the second interval.
[0268] The second interval is [0, C], or [0, C), or (0, C], or (0, C), where C is determined by x and n. x is greater than 0, and m is an integer greater than or equal to 2. Optionally, C = x * (2^n) n-1 -1).
[0269] Optionally, the leftmost bit (or the most significant bit, or the first bit) of the m bits represents the sign of the differential quality of the new beam, and the remaining m bits represent the absolute value of the differential quality of the new beam. The values of the remaining m bits range from 0 to x*(2 n-1 -1). For example, n=4, the quantization step size is 2dB. The differential quality of a new beam is indicated by the value of four bits. The value of the most significant bit of these four bits indicates whether the differential quality of the new beam is positive or negative. For example, a value of 0 for the most significant bit indicates a negative differential quality; a value of 1 for the most significant bit indicates a positive differential quality, and vice versa. The last three bits of these four bits can be from 000 to 111, for a total of 8 possible values.
[0270] For example, the differential quality of a new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. As shown in Table 5, the quantization step size is 2dB. The eight possible values correspond to differential quality values of 0, 2, 4, ..., or ≥14dB for the new beam. The differential quality of new beam #1 is indicated by a four-bit value. If the most significant bit is 1 and the last three bits are 111, it indicates that the signal quality of new beam #1 is at least 14dB higher than the signal quality of the serving beam. That is, the differential quality of new beam #1 is 14dB or greater than 14dB. The differential quality of new beam #2 is indicated by a four-bit value. If the most significant bit is 1 and the last three bits are 001, it indicates that the signal quality of new beam #2 is 2dB higher than the signal quality of the serving beam. That is, the differential quality of new beam #2 is 2dB. The differential quality of the new beam #3 is indicated by the value of four bits. If the highest bit is 0 and the last three bits are 010, it means that the signal quality of the new beam #3 is 4dB lower than that of the serving beam. That is, the differential quality of the new beam #3 is -4dB.
[0271] Table 5
[0272]
[0273] For example, the differential quality of a new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. The quantization step size is 2dB. The eight possible values correspond to the following differential quality values w2 for the new beam: 0≤w2<2, 2≤w2<4, 4≤w2<6..., 12≤w2<14, or w2≥14dB. As shown in Table 6, the differential quality of new beam #1 is indicated by the value of four bits. If the highest bit is 1 and the last three bits are 111, it means that the signal quality of new beam #1 is at least 14dB higher than that of the serving beam. That is, the differential quality of new beam #1 is greater than or equal to 14dB. The differential quality of new beam #2 is indicated by the value of four bits. If the highest bit is 1 and the last three bits are 001, it means that the signal quality of new beam #2 is 2dB to 4dB higher than that of the serving beam. The differential quality of new beam #2 falls within the range of [2, 4) dB. The differential quality of new beam #3 is indicated by the value of four bits. If the most significant bit is 0 and the last three bits are 010, then the signal quality of new beam #3 is 4 to 6 dB lower than that of the serving beam. Therefore, the differential quality of new beam #3 falls within the range of [-6, -4) dB.
[0274] Table 6
[0275]
[0276] Indication Method 3: The differential quality of each new beam is indicated by the value of n bits. This one or more new beams include a first beam and a second beam. The first beam does not meet the event occurrence conditions configured by the network device for the terminal device. The differential quality of the first beam is indicated by the first value of a first bit string, which includes n bits. This first value indicates that the new beam does not meet the event occurrence conditions. The second beam meets the event occurrence conditions configured by the network device for the terminal device. The signal quality of the second beam is indicated by the value of a second bit string, which includes n bits. The value of the second bit string is obtained based on the differential quality of the second beam and the quantization step of the third interval using xdB. Please refer to the relevant description below for information on the event occurrence conditions configured by the network device for the terminal device.
[0277] The third interval is either [0, D], [0, D), (0, D], (0, D), [-D, 0], [-D, 0), (-D, 0], or (-D, 0), where D is determined by x and n. x is greater than 0, and n is an integer greater than or equal to 1. Optionally, D can be a positive number.
[0278] In this implementation, the bit string corresponding to the differential quality of the new beam that does not meet the event occurrence condition takes the first value. For example, the signal quality of the new beam that does not meet the event occurrence condition is less than the signal quality of the serving beam. Therefore, if the differential quality of the new beam is defined as equal to the signal quality of the new beam minus the signal quality of the serving beam, then the differential quality of the new beam that meets the event occurrence condition is always positive, so the third interval is the interval [0, D], or [0, D), or (0, D]. If the differential quality of the new beam is defined as equal to the signal quality of the serving beam minus the signal quality of the new beam, then the differential quality of the new beam that meets the event occurrence condition is always negative, so the third interval is the interval [-D, 0], or [-D, 0), or (-D, 0).
[0279] Optional, D = x * (2 n -2). Optionally, the first value can be a special value. For example, all bits in the first bit string can be 0 or all bits can be 1.
[0280] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. n = 4, and the quantization step size is 2dB. Optionally, the values of the n bits can be from 0000 to 1111, a total of 16 possible values. Here, 1111 indicates that the corresponding new beam does not meet the conditions for the event to occur. Therefore, 0000 to 1110 represent the corresponding differential quality w3 of the new beam as: 0, 2, 4, ... or ≥28dB.
[0281] As shown in Table 7, n = 4, and the quantization step size is 2dB. The differential quality of the new beam #1 is indicated by the value of four bits. A value of 0000 indicates that the signal quality of the new beam #1 is equal to the signal quality of the serving beam. That is, the differential quality of the new beam #1 is 0dB. The differential quality of the new beam #2 is indicated by the value of four bits. A value of 1111 indicates that the first value is 1111, meaning that the new beam #2 does not meet the conditions for the event to occur; that is, the differential quality of the new beam #2 is meaningless. The differential quality of the new beam #3 is indicated by the value of four bits. A value of 0001 indicates that the differential quality of the new beam #3 is 2dB higher than the signal quality of the serving beam. That is, the differential quality of the new beam #3 is 2dB.
[0282] Table 7
[0283]
[0284] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. n = 4, and the quantization step size is 2dB. The n bits can be selected from 0000 to 1111, a total of 16 possible values. 1111 indicates that the corresponding new beam does not meet the conditions for the event to occur. Therefore, 0000 to 1110 represent the corresponding differential quality w3 of the new beam as: 0 ≤ w3 < 2, 2 ≤ w3 < 4, 4 ≤ w3 < 6… 24 ≤ w3 < 26, or w3 ≥ 28dB.
[0285] Optionally, as shown in Table 8, the differential quality of new beam #1 is indicated by the value of four bits. A value of 0000 indicates that the signal quality of new beam #1 is 0 dB to 2 dB higher than the signal quality of the serving beam. That is, the differential quality of new beam #1 belongs to the [0, 2) dB range. The differential quality of new beam #2 is indicated by the value of four bits, which is 1111. The first value mentioned above is 1111, indicating that new beam #2 does not meet the conditions for the event to occur, meaning the differential quality of new beam #2 is meaningless. The differential quality of new beam #3 is indicated by the value of four bits, which is 0001. That is, the differential quality of new beam #3 is 2 dB to 4 dB higher than the signal quality of the serving beam. That is, the differential quality of new beam #3 belongs to the [2, 4) dB range.
[0286] Table 8
[0287]
[0288] Optionally, the third interval mentioned above can also be represented as the interval [F, F+D], or [F, F+D), or (F, F+D], or (F, F+D), or [-(F+D), -F], or [-(F+D), -F), or (-(F+D), -F], or (-(F+D), -F). Optionally, F is a number greater than or equal to 0. The specific value of F is determined based on the threshold value in the event configured by the network device for the terminal device. For details, please refer to the relevant definitions of the first to eleventh threshold values in the event configured by the network device for the terminal device later in this document. For example, the event configured by the network device for the terminal device is: there exists at least one new beam with a signal quality greater than the serving beam, and the difference between the signal quality of the at least one new beam and the signal quality of the serving beam is greater than or equal to the first threshold value. For example, if the first threshold value is 2, then F can be 2.
[0289] Optionally, the terminal device may not report the differential quality and / or index of new beams that do not meet the conditions for the event to occur, but may repeatedly report the signal quality and / or index of one or more new beams that meet the conditions for the event to occur. In this implementation, the value of D in the third interval mentioned above can be x*(2 n -1). For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. Optionally, n bits correspond to 16 possible values, from 0000 to 1111. The quantization step size is 2dB, and 0000 to 1111 respectively represent the differential quality w3 of the corresponding new beam as: 0, 2, 4, ... or ≥30dB. For another example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. n = 4, quantization step size is 2dB. Optionally, the values of the n bits can be from 0000 to 1111, a total of 16 possible values. Therefore, 0000 to 1111 respectively represent the differential quality w3 of the corresponding new beam as: 0≤w3<2, 2≤w3<4, 4≤w3<6…26≤w3<28, 28≤w3<30, or w3≥30dB. In this implementation, the terminal device can report the differential quality of the new beam #1 and the differential quality of the new beam #3 twice, but does not need to report the differential quality of the new beam #2.
[0290] Optionally, in the three implementation methods described above, the measurement results of the one or more new beams may also include the indices of the one or more new beams. Optionally, the index of each new beam is indicated by a value of y bits, where y is an integer greater than or equal to 1. The value of y can be determined based on the number W of new beams configured by the network for the terminal device or specified by the protocol, for example... For example, if y = 2 and the index of a new beam is 1, then the values of the y bits can be 0 or 1, thus indicating the new beam. For example, as shown in Table 9, the measurement results of one or more new beams include the index of new beam #1, the index of new beam #2, the index of new beam #3, the differential quality of new beam #1, the differential quality of new beam #2, and the differential quality of new beam #3.
[0291] Table 9
[0292] Measurement results of one or more new beams Index of New Beam #1 Index of New Beam #2 Index of New Beam #3 Differential quality of new beam #1 Differential quality of new beam #2 Differential quality of new beam #3
[0293] Indication Method 4: The measurement results of the one or more new beams also include the indices of the one or more new beams. Optionally, the index of each new beam is indicated by a value of y bits, where y is an integer greater than or equal to 1. When the new beam does not meet the event occurrence conditions configured by the network device for the terminal device, the y bits are assigned a second value, which indicates that the new beam does not meet the event occurrence conditions configured by the network device for the terminal device. The one or more new beams include a third beam, the signal quality of which meets the event occurrence conditions configured by the network device for the terminal device. The signal quality of the third beam is indicated by a value of n bits, which is obtained based on the differential quality of the third beam and the fourth interval quantized in xdB increments. For information on the event occurrence conditions configured by the network device for the terminal device, please refer to the relevant descriptions below.
[0294] The fourth interval is either [0, E], [0, E], (0, E], (0, E), [-E, 0], (-E, 0], (-E, 0], or (-E, 0). E is determined by x and n, where x is greater than 0 and n is an integer greater than or equal to 1. Optionally, E is a positive number.
[0295] In this implementation, the values of the n bits corresponding to the differential quality of the new beam that does not meet the event occurrence condition are meaningless. For example, the signal quality of the new beam that does not meet the event occurrence condition is less than the signal quality of the serving beam, or the signal quality of the new beam that does not meet the event occurrence condition is not higher than a threshold value of the signal quality of the serving beam. Therefore, if the differential quality of the new beam is defined as equal to the signal quality of the new beam minus the signal quality of the serving beam, then the differential quality of the new beam that meets the event occurrence condition is always positive, so the fourth interval is the interval [0, E], or [0, E), or (0, E], or (0, E). If the differential quality of the new beam is defined as equal to the signal quality of the serving beam minus the signal quality of the new beam, then the differential quality of the new beam that meets the event occurrence condition is always negative, so the fourth interval is the interval [-E, 0], or (-E, 0], or (-E, 0).
[0296] For the index of a new beam that does not meet the conditions for the event configured by the network device for the terminal device, the corresponding index indicator bit value is a second value, i.e., a special value. For example, all 0s, all 1s, or the index of the serving beam. Therefore, indicating the differential quality of the new beam through this second value is meaningless.
[0297] Optional, E = x * (2 n -1).
[0298] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. Optionally, n bits correspond to 16 possible values, ranging from 0000 to 1111. The quantization step size is 2dB, and 0000 to 1111 represent the corresponding differential quality w4 of the new beam as: 0, 2, 4, ... or ≥30dB.
[0299] As shown in Table 10, the measurement results of the one or more new beams include the index of new beam #1, the index of new beam #2, the index of new beam #3, the differential quality of new beam #1, the differential quality of new beam #2, and the differential quality of new beam #3. The index of new beam #1 is 1, and the bit indicating the index of new beam #1 is 01. New beam #2 does not meet the event conditions configured by the network device for the terminal device; therefore, the bit indicating the index of new beam #2 is 00 (i.e., all zeros), and the differential quality of new beam #2 is meaningless. The index of new beam #3 is 3, and the bit indicating the index of new beam #3 is 11. The quantization step size is 2dB. The differential quality of new beam #1 is indicated by a four-bit value of 0000, indicating that the differential quality of new beam #1 is 0, meaning it equals the signal quality of the serving beam. The differential quality of new beam #2 is meaningless. The differential quality of new beam #3 is indicated by a four-bit value of 0001, indicating that the differential quality of new beam #3 is 2dB, meaning the differential quality of new beam #1 is 2dB higher than the signal quality of the serving beam.
[0300] Table 10
[0301]
[0302] For example, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the serving beam. Optionally, n = 4, where n bits correspond to 16 possible values, ranging from 0000 to 1111. The quantization step size is 2dB. 0000 to 1111 represent the corresponding differential quality w4 of the new beam as: 0 ≤ w4 < 2, 2 ≤ w4 < 4, 4 ≤ w4 < 6… 26 ≤ w4 < 28, 28 ≤ w4 < 30, or w4 ≥ 30dB.
[0303] As shown in Table 11, the measurement results of the one or more new beams include the index of new beam #1, the index of new beam #2, the index of new beam #3, the differential quality of new beam #1, the differential quality of new beam #2, and the differential quality of new beam #3. Specifically, the index of new beam #1 is 1, and the bit used to indicate the index of new beam #1 has a value of 01. New beam #2 does not meet the event occurrence conditions configured by the network device for the terminal device; therefore, the bit used to indicate the index of new beam #2 has a value of 00 (i.e., all zeros), and thus the differential quality of new beam #2 is meaningless. The index of new beam #3 is 3, and the bit used to indicate the index of new beam #3 has a value of 11. The differential quality of new beam #1 is indicated by the value of four bits, which are all 0000. Therefore, the differential quality of new beam #1 is 0 dB to 2 dB higher than the signal quality of the serving beam, meaning its differential quality falls within the range of [0, 2) dB. The differential quality of new beam #2 is meaningless. The differential quality of new beam #3 is indicated by the value of four bits, which are all 0001. Therefore, the differential quality of new beam #1 is 2 dB to 4 dB higher than the signal quality of the serving beam, meaning its differential quality falls within the range of [2, 4) dB.
[0304] Table 11
[0305]
[0306] In this implementation, the values of the n bits corresponding to the differential quality of the new beam that does not meet the event occurrence condition are meaningless. Therefore, the differential quality of the new beam that meets the event occurrence condition is either all positive or all negative. Thus, the interval to which the differential quality of the new beam belongs is the fourth interval. Where E = x*(2 n -1).
[0307] Optionally, the fourth interval mentioned above can also be represented as the interval [F, F+E], or [F, F+E), or (F, F+E], or (F, F+E), or [-(F+E), -F], or [-(F+E), -F), or (-(F+E), -F], or (-(F+E), -F). Optionally, F is a number greater than or equal to 0. The specific value of F is determined based on the threshold value in the event configured by the network device for the terminal device. For details, please refer to the relevant definitions of the first to eleventh threshold values in the event configured by the network device for the terminal device later in this document. For example, the event configured by the network device for the terminal device is: there exists at least one new beam with a signal quality greater than the serving beam, and the difference between the signal quality of the at least one new beam and the signal quality of the serving beam is greater than or equal to the first threshold value. For example, if the first threshold value is 2, then F can be 2.
[0308] Implementation Method Two: The one or more new beams include a single new beam, and the measurement results of the one or more new beams include the signal quality of that new beam. Alternatively, the one or more new beams include multiple new beams, and the measurement results of the one or more new beams include the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the one with the highest signal quality. The differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality.
[0309] The one or more new beams include a new beam, which may be a new beam with the highest signal quality, a new beam with relatively good signal quality, or other new beams. This application does not limit the specifics.
[0310] For a new beam, the differential quality of the new beam is equal to the signal quality of the new beam (excluding the new beam with the highest signal quality) minus the signal quality of the new beam itself. Alternatively, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of the new beam (excluding the new beam with the highest signal quality). Therefore, the differential quality of the new beam is either all positive or all negative. For example, if the differential quality of the new beam is equal to the signal quality of the new beam (excluding the new beam with the highest signal quality) minus the signal quality of the new beam, then the differential quality of the new beam is positive. As another example, if the differential quality of the new beam is equal to the signal quality of the new beam (excluding the new beam with the highest signal quality) minus the signal quality of the new beam (excluding the new beam with the highest signal quality), then the differential quality of the new beam is negative.
[0311] The following describes several possible indication methods for the differential quality of the one or more new beams in the second implementation described above. Other indication methods are also applicable to this application, and this application does not limit them specifically.
[0312] 1. The differential quality of each new beam is indicated by n bits. These n bits are derived from the differential quality of the new beam and the values of the first interval using a quantization step of x dB. The first interval can be [A, B] dB, [A, B] dB, (A, B] dB, or (A, B) dB, where A and B are determined by x and n. x is greater than 0, and n is an integer greater than or equal to 1. The unit of differential quality is dB.
[0313] Optional, A = 0, B = x*(2 n -1). Or, A = -x*(2 n -1), B = 0.
[0314] In this implementation, optionally, the differential quality of the new beam is equal to the signal quality of the new beam other than the one with the highest signal quality minus the signal quality of the new beam. Therefore, for the differential quality of a new beam, n bits correspond to 16 possible values, ranging from 0000 to 1111. The quantization step size is 2dB, and 0000 to 1111 represent the corresponding differential quality w5 of the new beam as: 0, 2, 4, ... or 28, ≥30dB.
[0315] In this implementation, optionally, the differential quality of the new beam is equal to the signal quality of the new beam other than the one with the highest signal quality minus the signal quality of the new beam. Therefore, for the differential quality of a new beam, n bits correspond to 16 possible values, ranging from 0000 to 1111. The quantization step size is 2dB. 0000 to 1111 represent the corresponding differential quality w5 of the new beam as: 0≤w5<2, 2≤w5<4, 4≤w5<6, ..., 26≤w5<28, 28≤w5<30, or w5≥30dB.
[0316] In this implementation, optionally, the differential quality of the new beam is equal to the signal quality of the new beam minus the signal quality of all new beams except the one with the highest signal quality. Therefore, for the differential quality of a new beam, n bits correspond to 16 possible values, ranging from 0000 to 1111. The quantization step size is 2dB, and 0000 to 1111 represent the corresponding differential quality w5 of the new beam as: w5≤-30, -28, -26, ..., -4, -2, or 0.
[0317] In this implementation, optionally, the differential quality of a new beam is equal to the signal quality of that new beam minus the signal quality of any new beam other than the one with the highest signal quality. Therefore, for the differential quality of a new beam, n bits correspond to 16 possible values, ranging from 0000 to 1111. With a quantization step size of 2dB, 0000 to 1111 represent the corresponding differential qualities of the new beam, where w5 is -30. <w5,-30≤w5<-28,-28≤w5<-26,-26≤w5<-24,-24≤w5<-22,…-2≤w5≤0dB。
[0318] For specific examples, please refer to the example in Instruction Method 3 of Implementation Method 1. Similarly, please refer to the example in Instruction Method 3 of Implementation Method 1.
[0319] In implementation method two, instruction method 2 is similar to instruction method 3 in implementation method one. For details, please refer to the relevant introduction of instruction method 3 in implementation method one. It will not be repeated here.
[0320] In implementation method two, instruction method 3 is similar to instruction method 4 in implementation method one. For details, please refer to the relevant introduction of instruction method 4 in implementation method one. It will not be repeated here.
[0321] Optionally, the one or more new beams include: at least one new beam that satisfies the event occurrence conditions configured by the network device for the terminal device. That is, some or all of the events in the one or more new beams satisfy the event occurrence conditions configured by the network device for the terminal device. Alternatively, the one or more new beams include: at least one new beam with signal quality greater than or equal to the signal quality of the serving beam, or at least one new beam with signal quality greater than the signal quality of the serving beam by K1dB or K1dBm, where K1 is a first threshold value.
[0322] Optionally, the events configured by the network device for the terminal device include at least one of the following:
[0323] 1. There exists at least one new beam whose signal quality is greater than that of the serving beam, and the difference between the signal quality of the at least one new beam and the signal quality of the serving beam is greater than or equal to a first threshold value.
[0324] Optionally, the first item above can be replaced by the description that: there exists at least one new beam whose signal quality is greater than or equal to the signal quality of the serving beam, and the difference between the signal quality of the at least one new beam and the signal quality of the serving beam is greater than a first threshold value.
[0325] 2. There exists at least one new beam whose signal quality is greater than the second threshold value.
[0326] Optionally, the second item above can be replaced by the description that: there exists at least one new beam whose signal quality is greater than or equal to the second threshold value.
[0327] 3. The signal quality of the serving beam is less than the third threshold, and there exists at least one new beam whose signal quality is greater than the fourth threshold, and the fourth threshold is greater than or equal to the third threshold.
[0328] Optionally, the third item above can be replaced with the description: the signal quality of the serving beam is less than the third threshold, and there exists at least one new beam whose signal quality is greater than or equal to the fourth threshold, and the fourth threshold is greater than or equal to the third threshold. Alternatively, the signal quality of the serving beam is less than or equal to the third threshold, and there exists at least one new beam whose signal quality is greater than the fourth threshold, and the fourth threshold is greater than or equal to the third threshold. Alternatively, the signal quality of the serving beam is less than or equal to the third threshold, and there exists at least one new beam whose signal quality is greater than or equal to the fourth threshold, and the fourth threshold is greater than the third threshold. Alternatively, the signal quality of the serving beam is less than or equal to the third threshold, and there exists at least one new beam whose signal quality is greater than or equal to the fourth threshold, and the fourth threshold is greater than or equal to the third threshold.
[0329] 4. There exists at least one new beam whose signal quality is less than the fifth threshold value.
[0330] Optionally, the fourth item above can be replaced by the description that: there exists at least one new beam whose signal quality is less than or equal to the signal quality of the serving beam, and the absolute value of the difference between the two is less than or equal to the fifth threshold value.
[0331] 5. The serving beam is not among the K best-quality new beams measured by the terminal equipment, where K is an integer greater than or equal to 1.
[0332] 6. There exists a new beam whose signal quality differs from that of the beam with the worst signal quality among the beams corresponding to the TCI state activated by the network device for the terminal device by the network device, and the difference is greater than the sixth threshold.
[0333] Optionally, the sixth item above can be described as follows: there exists at least one new beam whose signal quality differs from the signal quality of the beam with the worst signal quality among the beams corresponding to the TCI state activated by the network device for the terminal device by the terminal device by a value greater than or equal to the sixth threshold value.
[0334] 7. There exists a new beam whose signal quality differs from the best-quality beam among the beams corresponding to the TCI state activated by the network device for the terminal device by the network device by a value greater than the seventh threshold.
[0335] Optionally, the seventh item above can be described as follows: the difference between the signal quality of one or more new beams and the signal quality of the beam with the best signal quality among the beams corresponding to the TCI state activated by the network device for the terminal device is greater than or equal to the seventh threshold value.
[0336] 8. There are at least two new beams whose signal quality differs from that of the serving beam by a value greater than the eighth threshold.
[0337] Optionally, the eighth item above can be described as: the difference between the signal quality of at least two new beams and the signal quality of the serving beam is greater than or equal to the eighth threshold value.
[0338] 9. There exists at least one new beam whose signal quality is greater than the ninth threshold value of the beam corresponding to the reference signal configured for the terminal equipment.
[0339] Optionally, the ninth item above can be described as follows: the signal quality of one or more new beams is greater than or equal to the signal quality of the beam corresponding to the reference signal configured for the terminal device.
[0340] 10. The signal quality of the serving beam is less than the tenth threshold.
[0341] Optionally, the tenth item above can be replaced by the description: the signal quality of the serving beam is less than or equal to the tenth threshold value.
[0342] 11. The difference between the signal quality of the serving beam and the signal quality of the beam corresponding to the QCL resource associated with the QCL resource in the TCI state of the serving beam is less than the eleventh threshold.
[0343] Optionally, the eleventh item above can be replaced by the description that: the difference between the signal quality of the serving beam and the signal quality of the beam corresponding to the QCL resource associated with the QCL resource in the TCI state corresponding to the serving beam is less than or equal to the eleventh threshold.
[0344] It should be noted that the units corresponding to the first to eleventh thresholds can be dBm (decibels per milliwatt) or dB (decibels). The first to eleventh thresholds can be configured or indicated by the network device, or specified by the communication protocol; this application does not impose any specific limitations.
[0345] For example, a network device might configure an event for a terminal device that states: at least one new beam has a signal quality greater than the serving beam's signal quality, and the difference between the signal quality of the at least one new beam and the serving beam is greater than or equal to a first threshold. When this event occurs, it indicates that at least one new beam has a signal quality greater than the first threshold of the serving beam's signal quality. A new beam that meets the conditions for this event can be understood as a new beam with a signal quality greater than the first threshold of the serving beam's signal quality.
[0346] Optionally, the one or more new beams may also include new beams that do not meet the conditions for the occurrence of an event configured by the network device for the terminal device. For example, the event configured by the network device for the terminal device is: the signal quality of at least one new beam is greater than the signal quality of the serving beam, and the difference between the signal quality of the at least one new beam and the signal quality of the serving beam is greater than or equal to a first threshold. The one or more new beams include new beams with signal quality less than that of the serving beam or new beams with signal quality not higher than the first threshold of the serving beam's signal quality. New beams with signal quality less than that of the serving beam or new beams with signal quality not higher than the first threshold of the serving beam's signal quality can be understood as new beams that do not meet the conditions for the occurrence of an event configured by the network device for the terminal device.
[0347] The following describes some possible implementations of one or more service beams in a terminal device. Other implementations are also applicable to this application, and are not specifically limited herein. Optionally, the service beam includes any of the following:
[0348] 1. The beam corresponding to the QCL type D reference signal in the TCI status indicated by the network device for the terminal device.
[0349] Optionally, the reference signal corresponding to the service beam can also be described as a reference signal. In this implementation, optionally, the reference signal is a QCL type D reference signal in the TCI state indicated by the network device to the terminal device.
[0350] Optionally, the reference signal corresponding to the serving beam can also be described as a serving beam measurement resource. In this implementation, optionally, the serving beam measurement resource is the reference signal resource corresponding to the QCL type D reference signal in the TCI state indicated by the network device to the terminal device.
[0351] 2. The beam corresponding to the SSB resource associated with the QCL type D reference signal in the TCI state indicated by the network device for the terminal device.
[0352] The SSB resource associated with the QCL type D reference signal in the TCI state indicated by the network device to the terminal device is an SSB resource that has a QCL relationship with the QCL type D reference signal. For example, this SSB resource is the source QCL resource in the QCL chain, and the source QCL resource is an SSB resource. This QCL chain is determined based on the QCL type D reference signal in the TCI state indicated by the network device to the terminal device. For example, the QCL resource corresponding to the QCL type D reference signal in the TCI state indicated by the network device to the terminal device is a CSI-RS resource. The QCL resource corresponding to the QCL type D reference signal in the TCI state corresponding to this CSI-RS resource is a TRS resource. The TCI state corresponding to this CSI-RS resource can be understood as the TCI state used by the network device when sending the CSI-RS corresponding to this CSI-RS resource. The QCL resource corresponding to the QCL type D reference signal in the TCI state corresponding to this TRS resource is an SSB resource. The TCI state corresponding to this TRS resource can be understood as the TCI state used by the network device when sending the TRS corresponding to this TRS resource. Therefore, it can be seen that the QCL resources corresponding to the QCL type D reference signal in the TCI state indicated by the network device to the terminal device (such as CSI-RS resources), the QCL resources corresponding to the QCL type D reference signal in the TCI state corresponding to the CSI-RS resource (such as TRS resources), and the QCL resources corresponding to the QCL type D reference signal in the TCI state corresponding to the TRS resource (such as SSB resources) constitute a QCL chain. The source QCL resource of this QCL chain is the SSB resource, that is, the SSB resource associated with the QCL type D reference signal in the TCI state indicated by the network device to the terminal device is this SSB resource.
[0353] Optionally, the reference signal corresponding to the service beam can also be described as a reference signal. In this implementation, optionally, the reference signal is the SSB associated with the QCL type D reference signal in the TCI state indicated by the network device to the terminal device.
[0354] Optionally, the reference signal corresponding to the serving beam can also be described as a serving beam measurement resource. In this implementation, the serving beam measurement resource can optionally be the SSB resource associated with the QCL type D reference signal in the TCI state indicated by the network device to the terminal device.
[0355] 3. The beam corresponding to the QCL type D reference signal in the downlink / common TCI state (DLorjointTCI state) and uplink TCI state (UL TCI state) of the current uplink and downlink transmission application of the terminal equipment.
[0356] Optionally, the reference signal corresponding to the service beam can also be described as a reference signal. In this implementation, the reference signal can optionally be a QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device.
[0357] Optionally, the reference signal corresponding to the serving beam can also be described as a serving beam measurement resource. In this implementation, the serving beam measurement resource can optionally be the QCL resource corresponding to the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device.
[0358] 4. The beams corresponding to the SSB resources associated with the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission applications of the terminal equipment.
[0359] For information on SSB resources associated with QCL type D reference signals, please refer to the aforementioned explanations; they will not be repeated here.
[0360] Optionally, the reference signal corresponding to the service beam can also be described as a reference signal. In this implementation, optionally, the reference signal is the SSB associated with the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device.
[0361] Optionally, the reference signal corresponding to the serving beam can also be described as a serving beam measurement resource. In this implementation, the serving beam measurement resource can optionally be the SSB resource associated with the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device.
[0362] 5. The beam corresponding to the reference signal with the best signal quality among the quasi-QCL type D reference signals in one or more TCI states activated by the network device for the terminal device.
[0363] Optionally, the reference signal corresponding to the service beam can also be described as a reference signal. In this implementation, optionally, the reference signal is the reference signal with the best signal quality among the quasi-QCL type D reference signals in one or more TCI states activated by the network device for the terminal device.
[0364] Optionally, the reference signal corresponding to the serving beam can also be described as a serving beam measurement resource. In this implementation, the serving beam measurement resource may optionally be: the reference signal resource with the best signal quality among one or more TCI states activated by the network device for the terminal device, specifically the quasi-QCL type D reference signals.
[0365] 6. The beam corresponding to the reference signal with the worst signal quality among the QCL type D reference signals in one or more TCI states activated by the network device for the terminal device.
[0366] Optionally, the reference signal corresponding to the service beam can also be described as a reference signal. In this implementation, optionally, the reference signal is the reference signal with the worst signal quality among the QCL type D reference signals in one or more TCI states activated by the network device for the terminal device.
[0367] Optionally, the reference signal corresponding to the serving beam can also be described as a serving beam measurement resource. In this implementation, the serving beam measurement resource can optionally be: the reference signal resource with the worst signal quality among the QCL type D reference signals in one or more TCI states activated by the network device for the terminal device.
[0368] 7. The network device configures or indicates to the terminal device one or more reference signals corresponding to the monitoring service beam.
[0369] Optionally, the reference signal corresponding to the service beam can also be described as a reference signal. In this implementation, optionally, the reference signal is one or more reference signals configured or indicated by the network device for the terminal device to monitor the service beam.
[0370] Optionally, the reference signal corresponding to the serving beam can also be described as a serving beam measurement resource. In this implementation, the serving beam measurement resource may optionally be one or more reference signal resources configured or indicated by the network device for the terminal device to monitor the serving beam.
[0371] Optionally, the reference signal may be SSB, CSI-RS, SRS, TRS, or a road loss reference signal; this application does not specify the specific type.
[0372] It should be noted that the terminal device can also measure reference signals corresponding to more new beams from the network device, and this application does not limit the specifics. The terminal device chooses to report the measurement results of one or more new beams. For example, the one or more new beams are new beams with better signal quality measured by the terminal device.
[0373] 803. The terminal device sends the measurement results of one or more new beams to the network device. Correspondingly, the network device receives the measurement results of one or more new beams from the terminal device.
[0374] Optional, Figure 8 The illustrated embodiment also includes steps 801a to 801b. Steps 801a to 801b may be performed before step 801.
[0375] 801a. The network device sends a reference signal corresponding to the service beam of the terminal device to the terminal device. Correspondingly, the terminal device receives the reference signal corresponding to the service beam from the network device.
[0376] Specifically, the network device sends a reference signal to the terminal device through the terminal device's service beam. This service beam can be understood as the transmission beam used by the network device to communicate with the terminal device.
[0377] Optionally, the serving beam of the terminal device includes one or more serving beams. Therefore, the reference signal corresponding to the serving beam of the terminal device includes the reference signal corresponding to the one or more serving beams.
[0378] Optionally, the reference signal corresponding to the service beam can also be described as the service beam measurement resource.
[0379] 801b. The terminal equipment measures the reference signal corresponding to the serving beam to obtain the measurement result of the serving beam.
[0380] Optional, Figure 8 The illustrated embodiment also includes step 801c. Step 801c may be performed after step 801b.
[0381] 801c: The terminal device sends the measurement results of the service beam to the network device. Correspondingly, the network device receives the measurement results of the service beam from the terminal device.
[0382] It should be noted that the measurement results of one or more new beams in step 803 and the measurement results of the serving beam in step 801c can be reported simultaneously or separately. That is, the execution order between steps 801c and 803 is not limited. For example, step 801c can be executed first, followed by step 803; or step 803 can be executed first, followed by step 801c; or, depending on the circumstances, steps 801c and 803 can be executed simultaneously. This application does not impose any specific limitations on this.
[0383] Optionally, the terminal device includes a serving beam. The terminal device can report measurement results as shown in Table 12 to the network device. As shown in Table 12, each item in the measurement results is optional to be reported. The differential quality of each new beam in Table 12 is the difference between the signal quality of the new beam and the signal quality of the serving beam.
[0384] Table 12
[0385]
[0386]
[0387] Optionally, the terminal device includes multiple serving beams. The terminal device can report measurement results as shown in Table 13 to the network device. As shown in Table 13, each item in the measurement results is optional to be reported. Specifically, the differential quality of each new beam in Table 13 is the difference between the signal quality of the new beam and the signal quality of serving beam #1, and the differential quality of serving beam #2 is the difference between the signal quality of serving beam #2 and the signal quality of serving beam #1. Optionally, serving beam #1 can be the serving beam with the highest signal quality, or a serving beam indicated by the network device.
[0388] Table 13
[0389] Measurement results Index of service beam #1 (if reported) Index of service beam #2 (if reported) Index of new beam #1 (if reported) Index of new beam #2 (if reported) Index of new beam #3 (if reported) Index of new beam #4 (if reported) Signal quality of service beam #1 (if reported) Differential quality of service beam #2 (if reported) Differential quality of new beam #1 (if reported) Differential quality of new beam #2 (if reported) Differential quality of new beam #3 (if reported) Differential quality of new beam #4 (if reported)
[0390] Optionally, the terminal device includes a serving beam. The terminal device can report measurement results as shown in Table 14 to the network device. As shown in Table 14, each item in the measurement results is optional to be reported. Specifically, the differential quality of each new beam in Table 14 is the difference between the signal quality of that new beam and the signal quality of the new beam with the highest signal quality; the differential quality of the serving beam is the difference between the signal quality of the serving beam and the signal quality of the new beam with the highest signal quality.
[0391] Table 14
[0392] Measurement results Index of new beam #1 (if reported) Index of new beam #2 (if reported) Index of new beam #3 (if reported) Index of new beam #4 (if reported) Index of the serving beam (if reported) Signal quality of new beam #1 (if reported) Differential quality of new beam #2 (if reported) Differential quality of new beam #3 (if reported) Differential quality of new beam #4 (if reported) Differential quality of the serving beam (if reported)
[0393] Optionally, the terminal device includes multiple serving beams. The terminal device can report measurement results as shown in Table 15 to the network device. As shown in Table 14, each item in the measurement results is optional to be reported. Specifically, the differential quality of each new beam in Table 15 is the difference between the signal quality of that new beam and the signal quality of the new beam with the highest signal quality; the differential quality of each serving beam is the difference between the signal quality of that serving beam and the signal quality of the new beam with the highest signal quality.
[0394] Table 15
[0395]
[0396]
[0397] It should be noted that the number of new beams reported by the terminal device and the number of service beams in Tables 12 to 15 above are merely examples. In actual applications, the number of new beams reported by the terminal device and the number of service beams can be other values, such as 1, 2, 3, 4, or 5, etc. This application does not impose any specific limitations. The number of new beams reported by the terminal device and the number of service beams can both be configured by the network device, specified by the communication protocol, or determined by the terminal device. They can also be determined by the method for determining the number of new beams Q and the number of service beams V, as described later. This application does not impose any specific limitations.
[0398] It should also be noted that whether the service beam index, signal quality or differential quality of the service beam is reported in Tables 12 to 15 above can be specified by the communication protocol or configured by the network device.
[0399] Below are some possible reporting examples.
[0400] In one possible implementation, the terminal device includes a serving beam and reports measurement results as shown in Table 16 to the network device. The measurement results include the index of new beam #1, the index of new beam #2, the signal quality of the serving beam, the differential quality of new beam #1, and the differential quality of new beam #2. The differential quality of the new beam shown in Table 16 can be the difference between the signal quality of the new beam and the signal quality of the serving beam. After receiving the measurement results of one or more new beams and the measurement results of the serving beam, the network device determines the signal quality of the serving beam based on the measurement results of the serving beam. Then, the network device determines the signal quality of each new beam based on the signal quality of the serving beam and the measurement results of the one or more new beams. Table 16 uses the reporting of measurement results for two new beams as an example. Table 16 is merely an example; in practical applications, the number of new beams reported by the terminal device can be other values, such as 1, 2, 3, 4, or 5, etc., which is not limited in this application.
[0401] Table 16
[0402] Measurement results Index of New Beam #1 Index of New Beam #2 Signal quality of the service beam Differential quality of new beam #1 Differential quality of new beam #2
[0403] Optionally, the measurement results of the serving beam may also include the index of the serving beam. For example, as shown in Table 17, the measurement results may also include the index of the serving beam. Table 17 is an example of the measurement results of reporting two new beams. Table 17 is just an example. In actual applications, the number of new beams reported by the terminal device may be other values, such as 1, 2, 3, 4 or 5, etc. This application does not limit the specific number of new beams reported.
[0404] Table 17
[0405] Measurement results Service beam index Index of New Beam #1 Index of New Beam #2 Signal quality of the service beam Differential quality of new beam #1 Differential quality of new beam #2
[0406] In another possible implementation, the terminal device includes a serving beam. The measurement results of the serving beam include the differential quality of the serving beam. The differential quality of the serving beam is the difference between the signal quality of the serving beam and the signal quality of the new beam with the largest signal quality. For example, in this implementation, the terminal device can report the measurement results shown in Table 18 to the network device. The measurement results include the index of new beam #1, the index of new beam #2, the differential quality of the serving beam, the differential quality of new beam #1, and the differential quality of new beam #2. New beam #1 is the new beam with the largest signal quality. The differential quality of the new beams shown in Table 18 can be the difference between the signal quality of the new beam and the signal quality of the new beam with the largest signal quality. Table 18 is an example of reporting the measurement results of two new beams. Table 18 is merely an example; in actual applications, the number of new beams reported by the terminal device can be other values, such as 1, 2, 3, 4, or 5, etc., which are not limited in this application.
[0407] Table 18
[0408] Measurement results Index of New Beam #1 Index of New Beam #2 Signal quality of new beam #1 Differential quality of new beam #2 Differential quality of the serving beam
[0409] Optionally, the measurement results of the serving beam may also include the index of the serving beam. For example, as shown in Table 19, the measurement results may also include the index of the serving beam. Table 19 is an example of the measurement results of reporting two new beams. Table 19 is merely an example. In actual applications, the number of new beams reported by the terminal device may be other values, such as 1, 2, 3, 4, or 5, etc. This application does not limit the specific number of new beams reported.
[0410] Table 19
[0411] Measurement results Index of New Beam #1 Index of New Beam #2 Service beam index Signal quality of new beam #1 Differential quality of new beam #2 Differential quality of the serving beam
[0412] In another possible implementation, the terminal device includes multiple serving beams. The measurement results of the serving beams include the signal quality of the serving beam with the highest signal quality, and the differential quality of the serving beams other than the serving beam with the highest signal quality. The differential quality of each serving beam other than the serving beam with the highest signal quality is the difference between the signal quality of that serving beam and the signal quality of the serving beam with the highest signal quality. Optionally, the measurement results of the serving beams may also include an index of the multiple serving beams.
[0413] For example, in this implementation, the terminal device can report the measurement results shown in Table 20 to the network device, where serving beam #1 is the serving beam with the highest signal quality. The differential quality of the new beam shown in Table 20 can be the difference between the signal quality of the new beam and the signal quality of the serving beam with the highest signal quality. The differential quality of the serving beam can also be the difference between the signal quality of the serving beam and the signal quality of the serving beam with the highest signal quality. Table 20 is an example of reporting the measurement results of three new beams and two serving beams. Table 20 is merely an example; in practical applications, the number of new beams and the number of serving beams reported by the terminal device can be other values, such as 1, 2, 3, 4, or 5, etc. This application does not limit the specific values.
[0414] Table 20
[0415] Measurement results Index of service beam #1 Index of Service Beam #2 Index of New Beam #1 Index of New Beam #2 Index of New Beam #3 Signal quality of service beam #1 Differential quality of service beam #2 Differential quality of new beam #1 Differential quality of new beam #2 Differential quality of new beam #3
[0416] The example shown in Table 20 above illustrates the signal quality of the serving beam with the highest signal quality and the differential quality of the other serving beams among the plurality of serving beams. In practical applications, the terminal device can report the signal quality of the serving beam with the lowest signal quality, as well as the differential quality of the other serving beams among the plurality of serving beams. The differential quality of each serving beam among the plurality of serving beams, excluding the serving beam with the lowest signal quality, is the difference between the signal quality of that serving beam and the signal quality of the serving beam with the lowest signal quality. The differential quality of one or more new beams can be the difference between the signal quality of that new beam and the signal quality of the serving beam with the lowest signal quality.
[0417] For example, in this implementation, the terminal device can report the measurement results shown in Table 21 to the network device, where serving beam #1 is the serving beam with the best signal quality. New beam #1 is the new beam with the best signal quality. Serving beam #1 is the serving beam with the best signal quality.
[0418] The differential quality of the new beam shown in Table 21 can be the difference between the signal quality of the new beam and the signal quality of the new beam with the largest signal quality. Similarly, the differential quality of the serving beam can be the difference between the signal quality of the serving beam and the signal quality of the serving beam with the largest signal quality. Table 21 uses the measurement results of three new beams and two serving beams as an example. This is merely an example; in actual applications, the number of new beams and the number of serving beams reported by the terminal device can be other values, such as 1, 2, 3, 4, or 5. This application does not impose any specific limitations on these values.
[0419] Table 21
[0420] Measurement results Index of service beam #1 Index of service beam #2 Index of New Beam #1 Index of New Beam #2 Index of New Beam #3 Signal quality of service beam #1 Differential quality of service beam #2 Signal quality of new beam #1 Differential quality of new beam #2 Differential quality of new beam #3
[0421] The example shown in Table 21 above illustrates the signal quality of the serving beam with the highest signal quality and the differential quality of the other serving beams among the plurality of serving beams. In practical applications, the terminal device can report the signal quality of the serving beam with the lowest signal quality, as well as the differential quality of the other serving beams among the plurality of serving beams.
[0422] In another possible implementation, the terminal device includes multiple serving beams, and the measurement results of the serving beams include the differential quality of the multiple serving beams. The differential quality of each serving beam is the difference between the signal quality of that serving beam and the signal quality of the newest beam with the largest signal quality. Optionally, the measurement results of the serving beams may also include an index of the multiple serving beams.
[0423] For example, in this implementation, the terminal device can report the measurement results shown in Table 22 to the network device, where new beam #1 is the new beam with the best signal quality. The differential quality of the new beam shown in Table 22 is the difference between the signal quality of the new beam and the signal quality of the new beam with the best signal quality. Table 22 is an example of reporting the measurement results of two new beams and two serving beams. Table 22 is merely an example; in actual applications, the number of new beams and the number of serving beams reported by the terminal device can be other values, such as 1, 2, 3, 4, or 5, etc. This application does not limit the specific values.
[0424] Table 22
[0425] Measurement results Index of New Beam #1 Index of New Beam #2 Index of service beam #1 Index of service beam #2 Signal quality of new beam #1 Differential quality of new beam #2 Differential quality of service beam #1 Differential quality of service beam #2
[0426] In another possible implementation, the terminal device includes a serving beam, and the measurement results of the serving beam include the signal quality of the serving beam. The measurement results of one or more new beams include the signal quality of the new beam with the highest signal quality and the differential quality of the new beams other than the one or more new beams with the highest signal quality. The differential quality of each new beam is the difference between the signal quality of that new beam and the signal quality of the new beam with the highest signal quality. For example, the terminal device reports the measurement results as shown in Table 23 to the network device. The measurement results include: the index of the serving beam, the index of new beam #1, the index of new beam #2, the signal quality of the serving beam, the differential quality of new beam #1, and the differential quality of new beam #2. The differential quality of the new beams shown in Table 23 is the difference between the signal quality of that new beam and the signal quality of the new beam with the highest signal quality. New beam #1 in Table 23 is the new beam with the highest signal quality. Table 23 uses the measurement results of two new beams reported above as an example. Table 23 is just an example. In actual applications, the number of new beams reported by the terminal device can be other values, such as 1, 2, 3, 4 or 5, etc. This application does not limit the specific number of new beams reported.
[0427] Table 23
[0428] Measurement results Index of New Beam #1 Index of New Beam #2 Index of service beam #1 Signal quality of new beam #1 Differential quality of new beam #2 Signal quality of service beam #1
[0429] In another possible implementation, the terminal device includes a serving beam, and the measurement results of the serving beam include the signal quality of the serving beam. The measurement results of one or more new beams include the signal quality of a new beam. For example, the terminal device reports the measurement results as shown in Table 24 to the network device. The measurement results include: the index of the serving beam, the index of the new beam, the signal quality of the serving beam, and the signal quality of the new beam.
[0430] Table 24
[0431] Measurement results New Beam Index Service beam index Signal quality of the new beam Signal quality of the service beam
[0432] In another possible implementation, the terminal device includes a serving beam, and the measurement results of the serving beam include the signal quality of the serving beam. The measurement results of one or more new beams include the signal quality of a new beam. For example, the terminal device reports the measurement results as shown in Table 25 to the network device. The measurement results include: the index of the new beam, the signal quality of the serving beam, and the signal quality of the new beam.
[0433] Table 25
[0434] Measurement results New Beam Index Signal quality of the new beam Signal quality of the service beam
[0435] Optionally, the index of the serving beam can be any of the following:
[0436] 1. The index of the QCL type D reference signal in the TCI state indicated by the network device to the terminal device;
[0437] 2. The SSB index corresponding to the SSB resource associated with the QCL type D reference signal in the TCI state indicated by the network device for the terminal device;
[0438] 3. The index of the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission applications of the terminal equipment;
[0439] 4. The SSB index corresponding to the SSB resource associated with the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device;
[0440] 5. The index of the reference signal with the best signal quality among the quasi-QCL type D reference signals in one or more TCI states activated by the network device for the terminal device;
[0441] 6. The index of the reference signal with the worst signal quality among the QCL type D reference signals in one or more TCI states activated by the network device for the terminal device;
[0442] 7. An index of one or more reference signals configured or indicated by the network device for the terminal device to monitor the service beam.
[0443] Optionally, the signal quality of the serving beam is indicated by q bits, where q is an integer greater than or equal to 1. The q bits are determined based on the signal quality of the serving beam and the fifth interval, quantized in LdB or LdBm increments, where L is greater than 0. For example, if the signal quality of the serving beam is RSRP and the fifth interval is [-140, -40] dB, then q = 7 and L = 1. This means the 7 bits are determined based on the signal quality of the serving beam and the [-140, -40] dB interval, quantized in 1 dB increments. In other words, the signal quality of the serving beam indicated by these 7 bits belongs to this fifth interval. As another example, if the signal quality of the serving beam is SINR and the fifth interval is [-23, 40] dBm, then q = 7 and L = 1. In other words, the 7-bit value is obtained by taking the values of the 7 bits based on the signal quality of the serving beam and the [-23, 40] dB range with a quantization step size of 0.5 dB. That is, the signal quality of the serving beam indicated by these 7-bit values belongs to this fifth range.
[0444] Optionally, the differential quality of each serving beam is indicated by n bits, where n is an integer greater than or equal to 1. The n bits are determined based on the differential quality of the serving beam and the values of the first interval at quantization steps of x dB. The first interval is the [A, B] dB interval, where A and B are determined by x and n, where x is greater than 0. For some possible examples regarding the first interval and the n bits, please refer to the aforementioned related introduction.
[0445] Optionally, the signal quality of the new beam with the highest signal quality is indicated by the value of t bits, where t is an integer greater than or equal to 1. The value of t bits is obtained based on the signal quality of the new beam with the highest signal quality and the sixth interval, with a quantization step size of hdB or hdBm. t is an integer greater than or equal to 1, and h is greater than 0. The value of t is similar to the value of q mentioned above; please refer to the aforementioned examples for details. The sixth interval is similar to the fifth interval mentioned above; please refer to the aforementioned description of the fifth interval for details. The value of h is similar to the value of L mentioned above; please refer to the aforementioned description of L for details.
[0446] In one possible implementation, the one or more new beams include S new beams. The measurement results of the one or more new beams include S first fields and S second fields, where the S first fields correspond one-to-one with the S new beams, and the S second fields also correspond one-to-one with the S new beams. Each first field indicates the index of the new beam corresponding to the first field, and each second field indicates the differential quality or signal quality of the new beam corresponding to the second field. The S first fields precede the S second fields, where S is an integer greater than or equal to 1.
[0447] Optionally, the i-th second field among the S second fields is used to indicate the signal quality or differential quality of the new beam indicated by the i-th first field among the S first fields, where i is an integer greater than or equal to 1 and less than or equal to S.
[0448] For example, the fields in the measurement results reported by the terminal device are ordered as follows: S first fields are listed first, followed by S second fields. The measurement results of this one or more new beams can be shown in Table 26. The indices of new beam #1 and new beam #2 are located before the signal quality of new beam #1 and the differential quality of new beam #2. The first first field corresponds to the first second field; that is, the first second field indicates the signal quality of new beam #1 indicated by the first first field. The second second field indicates the differential quality of new beam #2 indicated by the second first field. The differential quality of new beam #2 is the difference between the signal quality of new beam #2 and the signal quality of new beam #1.
[0449] Table 26
[0450] Measurement results Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Signal quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field)
[0451] For example, the fields in the measurement results reported by the terminal device are ordered as follows: S first fields are listed first, followed by S second fields. The measurement results for this one or more new beams are shown in Table 27. The indices of new beam #1 and new beam #2 are located before the differential quality of new beam #1 and new beam #2. The first first field corresponds to the first second field; that is, the first second field indicates the differential quality of new beam #1 indicated by the first first field. The second second field indicates the differential quality of new beam #2 indicated by the second first field. The differential quality of new beam #1 is the difference between the signal quality of new beam #1 and the signal quality of the serving beam. The differential quality of new beam #2 is the difference between the signal quality of new beam #2 and the signal quality of the serving beam.
[0452] Table 27
[0453] Measurement results Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Differential quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field)
[0454] Optionally, the measurement results of the serving beam include a third field, which is used to indicate the signal quality or differential quality of the serving beam. The third field is located before the S first fields, or after the S first fields and before the S second fields, or after the S second fields.
[0455] For example, the fields in the measurement results reported by the terminal device are ordered as follows: S first fields are listed first, followed by a third field, and then the S second fields. As shown in Table 28, the third field is located after the S first fields (including the first and second first fields) and before the S second fields (including the first and second second fields). In other words, the signal quality of the serving beam is located before the differential quality of one or more new beams and after the index of those one or more new beams.
[0456] Table 28
[0457] Measurement results Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Signal quality of the serving beam (corresponding to the third field) Differential quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field)
[0458] For example, the order of fields in the measurement results reported by the terminal device is as follows: S first fields are listed first, followed by S second fields, and then a third field. As shown in Table 29, the third field is located after the S second fields, meaning that the differential quality of the serving beam is located after the differential quality or signal quality of the one or more new beams.
[0459] Table 29
[0460] Measurement results Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Signal quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field) Differential quality of the serving beam (corresponding to the third field)
[0461] Optionally, the measurement results for the serving beam also include a fourth field, which indicates the index of the serving beam. The fourth field precedes the third field.
[0462] For example, the fields in the measurement results reported by the terminal device are ordered as follows: a fourth field is listed first, followed by S first fields, then a third field, and finally S second fields. As shown in Table 30 or Table 31, the third field is located after the S first fields (including the first and second first fields) and before the S second fields (including the first and second second fields). The fourth field is located before the S first fields.
[0463] Table 30
[0464] Measurement results Index of the service beam (corresponding to the fourth field) Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Signal quality of the serving beam (corresponding to the third field) Differential quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field)
[0465] Table 31
[0466] Measurement results Index of the service beam (corresponding to the fourth field) Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Differential quality of the serving beam (corresponding to the third field) Signal quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field)
[0467] For example, the fields in the measurement results reported by the terminal device are ordered as follows: S first fields are listed first, followed by a fourth field, then S second fields, and finally a third field. As shown in Table 32 or Table 33, the third field is after the S second fields, and the fourth field is after the S first fields and before the S second fields.
[0468] Table 32
[0469] Measurement results Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Index of the service beam (corresponding to the fourth field) Signal quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field) Differential quality of the serving beam (corresponding to the third field)
[0470] Table 33
[0471] Measurement results Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Index of the service beam (corresponding to the fourth field) Differential quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field) Signal quality of the serving beam (corresponding to the third field)
[0472] In one possible implementation, the terminal includes G serving beams, where G is an integer greater than or equal to 1. The measurement results of the G serving beams include G third fields and G fourth fields, where each of the G third fields corresponds one-to-one with one of the G serving beams, and each of the G fourth fields also corresponds one-to-one with one of the G serving beams. Each fourth field indicates the index of the serving beam corresponding to the fourth field, and each third field indicates the differential quality or signal quality of the serving beam corresponding to the third field. Optionally, the j-th third field among the G third fields is used to indicate the signal quality or differential quality of the serving beam indicated by the j-th fourth field among the G fourth fields, where j is an integer greater than or equal to 1 and less than or equal to G.
[0473] Optionally, the G third fields precede the G fourth fields.
[0474] Optionally, the G fourth fields are located before the S first fields, or after the S first fields and before the S second fields.
[0475] Optionally, the G third fields can be placed before or after the S second fields.
[0476] For example, the order of fields in the measurement results reported by the terminal device is as follows: G fourth fields are listed first, followed by S first fields, then G third fields, and finally S second fields. See Table 34 for details.
[0477] Table 34
[0478] Measurement results Index of service beam #1 (corresponding to the first fourth field) Index of service beam #2 (corresponding to the second fourth field) Index of new beam #1 (corresponding to the first field) Index of new beam #2 (corresponding to the second first field) Signal quality of service beam #1 (corresponding to the first third field) Differential quality of service beam #2 (corresponding to the second and third fields) Differential quality of new beam #1 (corresponding to the first second field) Differential quality of new beam #2 (corresponding to the second field)
[0479] For example, the order of fields in the measurement results reported by the terminal device is as follows: S first fields are listed first, followed by G fourth fields, then S second fields, and finally G third fields. See Table 35 for details.
[0480] Table 35
[0481]
[0482]
[0483] Tables 34 and 35 above are merely two possible examples. In practical applications, the order of fields in the measurement results reported by the terminal device can also be any of the following:
[0484] 1. S first fields are placed at the beginning, followed by S second fields, then S fourth fields, and finally G third fields.
[0485] 2. The G fourth fields are placed first, followed by the G third fields, then the S first fields, and finally the S second fields.
[0486] 3. The G third fields are listed first, followed by the S first fields, and then the S first fields are followed by the S second fields.
[0487] 4. S first fields are placed at the beginning, followed by S second fields, and then G third fields.
[0488] 5. S first fields are placed at the beginning, followed by G third fields, and then S second fields are placed after the G third fields.
[0489] It should be noted that the number of new beams and the number of service beams mentioned in the example table of this application are merely examples. In practical applications, the terminal device can report other numbers of new beams and other numbers of service beams. The specific number of new beams and the number of service beams reported can be configured by the network device, specified by the communication protocol, determined by the terminal device, or determined by the method for determining the number of new beams Q and the number of service beams V described later. This application does not impose any limitations on these determinations.
[0490] Therefore, optionally, the network device configuration or communication protocol stipulates that the measurement results reported by the terminal device must meet at least one of the following:
[0491] 1. The index of one or more new beams corresponds to the signal quality of the one or more new beams respectively.
[0492] 2. At least one of the one or more new beams satisfies the conditions for the event configured by the network device for the terminal device.
[0493] 3. When a terminal device reports the index of a serving beam, the index of the serving beam is either placed before the index of the first new beam or immediately after the index of the last new beam. As shown in Table 13 above, the index of serving beam #1 is placed before the index of new beam #1.
[0494] 4. When a terminal device reports the indexes of multiple serving beams, the indexes of these multiple serving beams are placed before the index of the first new beam, and the index of the serving beam with the best signal quality is placed before the index of the serving beam with the best signal quality among the multiple serving beams; or, when a terminal device reports the indexes of multiple serving beams, the indexes of these multiple serving beams are placed after the index of the last new beam, and the index of the serving beam with the best signal quality is placed before the index of the serving beam with the best signal quality among the multiple serving beams.
[0495] 5. When a terminal device reports the signal quality of a serving beam, the signal quality of that serving beam is ranked before the differential quality of the first new beam, or immediately after the differential quality of the last new beam.
[0496] 6. When a terminal device reports the signal quality of multiple serving beams (e.g., including the signal quality of the serving beam with the highest signal quality and the differential quality of the serving beams other than the serving beam with the highest signal quality), the signal quality of the multiple serving beams is ranked before the differential quality of the first new beam, and the signal quality of the serving beam with the highest signal quality is ranked before the signal quality of the serving beam other than the serving beam with the highest signal quality; or, when a terminal device reports the signal quality of multiple serving beams, the signal quality of the multiple serving beams is ranked after the differential quality of the last new beam, and the signal quality of the serving beam with the highest signal quality is ranked before the signal quality of the serving beam other than the serving beam with the highest signal quality.
[0497] Optionally, the measurement results reported by the terminal device to the network device may also include at least one of the following:
[0498] 1. Cell Information. Cell information can be understood as which cell the reported measurement result corresponds to, or the reference signal resource of which cell the reported measurement result refers to. For example, cell information can be a handover candidate cell identifier, a non-serving cell identifier, a component carrier (CC) index, or a physical cell identifier (PCI). Cell information can also be presented in the form of a bitmap to indicate which cells have experienced events.
[0499] 2. Reasons why the signal quality of the serving beam is below a threshold (e.g., the first threshold). For example, the network device beam may be misaligned, the terminal device's receiving beam may be misaligned, or the transmitting and receiving beams may be misaligned. Misalignment can also be replaced with terms like "expired" or "invalid." Alternatively, it could indicate whether a CSI-RS set measurement with "repetition" set to "on" is triggered, used to poll the receiving beam on the terminal device side.
[0500] 3. Reference signal resource set index, such as the CSI-RS resource set index, the CSI-IM resource set index, the channel state information synchronization signal and PBCH block (CSI-SSB) resource set index, or a reference signal resource set index configured by the network device for the terminal device to monitor the occurrence of events, used to indicate which reference signal resource set the currently serving beam and / or at least one new beam belongs to.
[0501] 4. Report configuration index, such as CSI report configuration identifier (CSI-ReportConfigId), or event-triggered report configuration index.
[0502] 5. Event information, such as an index of the event that occurred, or one or more bits indicating whether an event occurred. For example, event information may consist of J bits. An index used to indicate an event that has occurred. For example, event information includes X bits, each corresponding to one of X events. The c-th bit of the X bits indicates whether the event corresponding to that c-th bit has occurred, where c = 1, 2, ..., X. For instance, if the c-th bit has a value of "0", then the c-th bit indicates that the event corresponding to that c-th bit has occurred; or, if the c-th bit has a value of "1", then the c-th bit indicates that the event corresponding to that c-th bit has occurred.
[0503] 6. Channel state information, such as one or more of the following: precoding matrix indication (PMI), rank indication (RI), channel quality information (CQI), and layer indicator (LI). For example, it may include one or more of PMI, RI, CQI, and layer indicator (LI).
[0504] 7. Information on whether one or more new beams meet the conditions for the event to occur. For example, the terminal device indicates whether each new beam meets the conditions for the event to occur through a bitmap. Alternatively, an indication is added before the index of each new beam to indicate whether the new beam meets the conditions for the event to occur, or an indication is added before the signal quality or differential quality of each new beam to indicate whether the new beam meets the conditions for the event to occur.
[0505] Optionally, before reporting the measurement results of one or more new beams on the terminal device, the terminal device determines the number Q of new beams to be reported. The following describes some possible implementations of the terminal device determining the number of new beams to be reported. Other implementations are still applicable to this application, and this application does not limit the specific implementation.
[0506] I. Network device configuration or communication protocol specifications: If a terminal device reports measurement results for N new beams, then Q = N, where N is an integer greater than or equal to 1. Optionally, N can be a candidate value reported by the terminal device in its capability information. This candidate value represents the number of new beams that the terminal device supports reporting. For example, N can be any one of 1, 2, 3, or 4.
[0507] II. Network equipment configuration or communication protocol specifications: If a terminal device reports measurement results for M beams, and the number of serving beams for which measurement results are to be reported is P, then Q = MP, where M is an integer greater than or equal to 2, and P is an integer greater than or equal to 1. Optionally, M can be a candidate value reported by the terminal device in its capability information. This candidate value represents the number of beams that the terminal device supports reporting.
[0508] III. Network device configuration or communication protocol specifications: If a terminal device reports the signal quality of K new beams that meet the conditions for the event configured by the network device for the terminal device, then Q = K, where K is an integer greater than or equal to 1. Optionally, K can be a candidate value reported by the terminal device in its capability information. This candidate value represents the number of new beams that the terminal device supports reporting.
[0509] IV. Network device configuration or communication protocol specifications: If a terminal device reports measurement results for N new beams, including H new beams that satisfy the event occurrence conditions configured by the network device for the terminal device, then Q = N, where N is an integer greater than or equal to 2, and H is an integer greater than or equal to 1. Optionally, N can be a candidate value reported by the terminal device in its capability information. This candidate value represents the number of new beams that the terminal device supports reporting.
[0510] V. Network equipment configuration or communication protocol specifications: If the terminal device reports measurement results of M beams, and the number of service beams reported by the terminal device is allowed or configured to be L, where M is an integer greater than or equal to 2 and L is an integer greater than or equal to 1, then Q = ML. Optionally, the value of L can be equal to the value of V described later.
[0511] VI. If the network equipment or communication protocol stipulates that the terminal device reports the measurement results of M beams, but is not allowed to report the measurement results of the serving beam, then Q = M. Optionally, before reporting the measurement results of the serving beam, the terminal device determines the number V of serving beams to be reported. The following describes some possible implementations of the terminal device determining the number of serving beams to be reported. Other implementations are still applicable to this application, and this application does not limit them specifically.
[0512] I. Network equipment configuration or communication protocol specifications: If the terminal device reports the measurement results of R service beams, where R is an integer greater than or equal to 1, then V = R.
[0513] 2. If the network equipment configuration or communication protocol stipulates that the terminal equipment does not report the measurement results of the service beam, then V=0.
[0514] III. Network equipment configuration or communication protocol specifications: If the terminal device reports the measurement results of the service beam and the number of service beams is 1, then V = 1.
[0515] It should be noted that the terminal device determines the number of serving beams to report measurement results. If the network device configuration or communication protocol stipulates that the terminal device does not report the index of the serving beam, then the terminal device will not report the index of the serving beam, but only report the signal quality of the serving beam.
[0516] Optional, Figure 8 The illustrated embodiment also includes step 800a. Step 800a may be performed before step 801.
[0517] 800a. The network device sends capability information to the terminal device. Correspondingly, the terminal device receives the capability information from the network device.
[0518] The capability information includes at least one of the following: whether the terminal device supports the ability to trigger event reporting; one or more events corresponding to the event-triggered reporting supported by the terminal device; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the terminal device.
[0519] Event-triggered reporting can include event-triggered beam reporting, CSI reporting, beam measurement result reporting, interference measurement reporting, etc., and is not limited to any particular type. As an example, event-triggered reporting can also be called UE initiated report.
[0520] Optionally, the capability information includes first indication information, which is used to indicate whether the terminal device supports the capability of event-triggered reporting.
[0521] One possible implementation is that whether a terminal device supports event-triggered reporting is indicated by at least one bit. For example, suppose one bit is used to indicate whether the terminal device supports event-triggered reporting. If this bit is set to "0", it means that the terminal device supports event-triggered reporting; if this bit is set to "1", it means that the terminal device does not support event-triggered reporting. It should be understood that the above is merely an illustrative example and is not intended to be limiting.
[0522] Another possible implementation is to indicate whether the terminal device supports event-triggered reporting by reporting whether it does so. For example, if the terminal device does not report that it does not support event-triggered reporting, it can be assumed that the terminal device supports event-triggered reporting. Or, for example, if the terminal device does not report that it supports event-triggered reporting, it can be assumed that the terminal device does not support event-triggered reporting.
[0523] The above is an illustrative example, and the embodiments of this application are not limited thereto. For example, whether a terminal device supports the ability to trigger event reporting can also be indicated by a specific field. If the first indication information includes the specific field, it indicates that the terminal device supports the ability to trigger event reporting; if the first indication information does not include the specific field, it indicates that the terminal device does not support the ability to trigger event reporting.
[0524] Optionally, the capability information includes second indication information, which instructs the terminal device to trigger the reporting of one or more corresponding events. For example, the second indication information includes an index of each event supported by the terminal device. Another example is that the second indication information includes an index of each event table supported by the terminal device, where each event table includes one or more events. Yet another example is that the second indication information includes the number of events supported by the terminal device.
[0525] Optionally, the capability information includes third indication information. This third indication information is used to indicate the maximum number of reported beams or the maximum number of new beams that the terminal device supports. It should be noted that the terminal device may also report some candidate values for the number of beams it supports reporting in the capability information, and / or, some candidate values for the number of new beams it can report. For example, the candidate values for the number of beams the terminal device supports reporting include 1, 2, and / or 3, meaning the terminal device supports reporting measurement results for 1, 2, or 3 beams.
[0526] The above is an illustrative example, and the embodiments of this application are not limited thereto. The terminal device can indicate various information related to events supported by the terminal device to the network device.
[0527] It should be noted that, optionally, step 801a is performed before step 801a.
[0528] Optional, Figure 8 The illustrated embodiment also includes step 800b. Step 800b may be performed before step 801.
[0529] 800b. The network device sends the first configuration information to the terminal device. Correspondingly, the terminal device receives the first configuration information from the network device.
[0530] The first configuration information is used to configure one or more events for the terminal device. Please refer to the aforementioned introduction regarding events; they will not be repeated here.
[0531] Optionally, the first configuration information includes the indexes corresponding to the one or more events. Alternatively, the first configuration information includes an event table that includes the indexes corresponding to the one or more events.
[0532] Optionally, the network device sends an activation signaling message to the terminal device. Correspondingly, the terminal device receives the activation signaling message from the network device. This activation signaling message is used to activate some or all of the events in the one or more events.
[0533] Further, optionally, the network device sends a deactivation signaling message to the terminal device. Correspondingly, the terminal device receives the deactivation signaling message from the network device. This deactivation signaling message is used to deactivate some or all of the events in the one or more events.
[0534] Optionally, step 800b can be performed before step 801a.
[0535] It should be noted that, if Figure 8 The illustrated embodiment also includes step 800a. There is no fixed execution order between steps 800a and 800b. Step 800a can be executed first, followed by step 800b; or step 800b can be executed first, followed by step 800a; or, depending on the situation, steps 800a and 800b can be executed simultaneously. This application does not limit the specific execution order.
[0536] Optionally, step 803 specifically includes: when some or all of the one or more events occur, the terminal device sends the measurement results of the one or more new beams to the network device. The measurement results of the one or more new beams can be understood as the measurement results corresponding to some or all of the events that occurred.
[0537] Optionally, step 801c specifically includes: when some or all of the one or more events occur, the terminal device sends the measurement results of the serving beam to the network device. The measurement results of the serving beam can be understood as the measurement results corresponding to some or all of the events that occurred.
[0538] It should be understood that the measurement results corresponding to some or all of the events that occur are the measurement results associated with some or all of the events that occur. Measurement results may be referred to as measurement result reports, event-triggered or UE-initiated measurement result reports, event-triggered or UE-initiated CSI reports, CSI reports, event-triggered or UE-initiated beam measurement result reports, beam measurement result reports, event-triggered or UE-initiated interference measurement reports, or interference measurement reports, without limitation. As an example, event triggering or event occurrence may also be referred to as UE triggering or UE-initiated, etc.
[0539] Optional, Figure 8 The illustrated embodiment also includes step 800c. Step 800c may be performed before step 801.
[0540] 800c. The network device sends second configuration information to the terminal device. Correspondingly, the terminal device receives the second configuration information from the network device.
[0541] The second configuration information is used to configure the content of the measurement results reported by the terminal device. Optionally, the second configuration information includes at least one of the following:
[0542] 1. Does the terminal equipment report the signal quality of the serving beam?
[0543] 2. Does the terminal device report the index of the serving beam?
[0544] 3. The number of beams reported by the terminal device;
[0545] 4. The number of new beams reported by the terminal device;
[0546] 5. The number of serving beams reported by the terminal device;
[0547] 6. The number of new beams reported by the terminal device that meet the occurrence conditions of the events configured by the network device for the terminal device; or,
[0548] 7. Does the terminal equipment report the measurement results of the serving beam?
[0549] Optionally, in step 800c above, the network device can configure the content of the measurement result corresponding to each event of the terminal device or whether to report the measurement result corresponding to the event. Alternatively, the network device can jointly configure the content of the measurement result corresponding to multiple events of the terminal device or whether to report the measurement result corresponding to multiple events. Alternatively, the second configuration information mentioned above is carried in the reporting configuration information of the terminal device, which is used to configure the reporting configuration for the terminal device, and the reporting configuration is used for the terminal device to report measurement results. The reporting configuration information is associated with one or more events of the terminal device.
[0550] For example, the events configured by the network device for the terminal device include: the signal quality of at least one new beam is greater than the signal quality of the serving beam, and the difference between the signal quality of the at least one new beam and the signal quality of the serving beam is greater than or equal to a first threshold. The network device can configure the number of new beams reported by the terminal device through second configuration information. The network device can also configure whether the terminal device reports the signal quality and / or index of the serving beam through the second configuration information. Alternatively, the communication protocol may specify that the terminal device must report the signal quality and / or index of the serving beam, or the communication protocol may specify that the terminal device does not need to report the signal quality and / or index of the serving beam. Furthermore, the communication protocol may specify that the terminal device reports only the signal quality and / or index of one serving beam, or the communication protocol may specify that the terminal device reports the signal quality and / or index of all serving beams.
[0551] Optionally, step 800c can be performed before step 801a.
[0552] Optional, if Figure 8 The illustrated embodiment also includes step 800a. There is no fixed execution order between step 800c and step 800a. Step 800c can be executed first, followed by step 800a; or step 800a can be executed first, followed by step 800c; or, depending on the situation, steps 800a and 800c can be executed simultaneously. This application does not limit the specific execution order.
[0553] Optional, if Figure 8 The illustrated embodiment also includes step 800b. There is no fixed execution order between steps 800c and 800b. Step 800c can be executed first, followed by step 800b; or step 800b can be executed first, followed by step 800c; or, depending on the situation, steps 800b and 800c can be executed simultaneously. This application does not limit the specific execution order.
[0554] Optional, if Figure 8The illustrated embodiment also includes steps 800a and 800b. There is no fixed execution order between steps 800a, 800b, and 800c. Step 800a can be executed first, then step 800b, and finally step 800c; or step 800b can be executed first, then step 800a, and finally step 800c. This application does not limit the specific execution order.
[0555] In this embodiment, the terminal device measures the reference signal corresponding to one or more new beams from the network device to obtain measurement results for one or more new beams. These measurement results include the differential quality of the one or more new beams. The differential quality of each new beam is the difference between the signal quality of that new beam and the signal quality of the terminal device's serving beam. The one or more new beams are beams of the terminal device that are different from the serving beam. The terminal device sends the measurement results of the one or more new beams to the network device. This allows the terminal device to report measurement results for specific types of beams. This helps the network device decide whether to update the terminal device's serving beam based on the measurement results. Furthermore, reporting the differential quality of the one or more new beams to the network device reduces the signaling overhead of the terminal device reporting the measurement results.
[0556] The following is a schematic diagram of the communication device according to an embodiment of this application. Please refer to... Figure 9 Communication devices can be used to perform Figure 8 The process executed by the terminal device in the illustrated embodiment can be found in the relevant descriptions in the foregoing method embodiments.
[0557] The communication device 900 includes a transceiver module 901 and a processing module 902.
[0558] The processing module 902 is used for data processing. The transceiver module 901 can implement the corresponding communication functions. The transceiver module 901 can also be called a communication interface or a communication module.
[0559] Optionally, the communication device 900 may further include a storage module, which can be used to store program code, program instructions and / or data. The processing module 902 can read the instructions and / or data in the storage module so that the communication device 900 can implement the aforementioned method embodiments.
[0560] The communication device 900 can be used to perform the actions performed by the terminal device in the above method embodiments. For example, it can be a terminal device, a communication module within a terminal device, or a circuit or chip within a terminal device responsible for communication functions. The communication device 900 can be a terminal device or a component configurable on a terminal device. The processing module 902 is used to perform processing-related operations on the terminal device side in the above method embodiments. The transceiver module 901 is used to perform receiving-related operations on the terminal device side in the above method embodiments.
[0561] Optionally, the transceiver module 901 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments.
[0562] It should be noted that the communication device 900 may include a transmitting module but not a receiving module. Alternatively, the communication device 900 may include a receiving module but not a transmitting module. Specifically, it depends on whether the above-described scheme performed by the communication device 900 includes both transmitting and receiving actions. For example, the communication device 900 is used to perform the above-described... Figure 8 The actions performed by the terminal device in the illustrated embodiment are shown above. For details, please refer to the above. Figure 8 The relevant descriptions in the illustrated embodiments will not be elaborated here.
[0563] For example, the communication device 900 is used to execute the following scheme:
[0564] Processing module 902 is used to measure reference signals corresponding to one or more new beams from network devices and obtain measurement results of one or more new beams. The measurement results of one or more new beams include the differential quality of one or more new beams. The differential quality of each new beam in the one or more new beams is the difference between the signal quality of each new beam and the signal quality of the serving beam of the communication device 900. The one or more new beams are beams of the communication device 900 that are different from the serving beam.
[0565] The transceiver module 901 is used to send measurement results of one or more new beams to network devices.
[0566] For example, the communication device 900 is used to execute the following scheme:
[0567] Processing module 902 is used to measure reference signals corresponding to one or more new beams from network devices to obtain measurement results for one or more new beams; wherein, the one or more new beams include a single new beam, and the measurement results for the one or more new beams include the signal quality of the new beam; or, the one or more new beams include multiple new beams, and the measurement results for the one or more new beams include the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the new beam with the highest signal quality among the multiple new beams, wherein the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality, and the one or more new beams are beams of communication device 900 that are different from the service beam of communication device 900;
[0568] The transceiver module 901 is used to send measurement results of one or more new beams to network devices.
[0569] In one possible implementation, the one or more new beams include: at least one new beam that satisfies the conditions for the occurrence of an event configured by the network device for the communication device 900.
[0570] In another possible implementation, the differential quality of each new beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the new beam and the values of the n bits in the first interval with a quantization step size of x dB. The first interval is the [A, B] dB interval, or the [A, B) interval, or the (A, B] interval, or the (A, B) interval. A and B are determined based on x and n, where x is greater than 0.
[0571] In another possible implementation, A = -x * 2 n-1 B = x*(2 n-1 -1); or, A = -x*(2 n-1 -1), B=x*2 n-1 .
[0572] In another possible implementation, A = 0, B = x*(2 n -1); or, A = -x*(2 n -1), B = 0.
[0573] In another possible implementation, the differential quality of each new beam is indicated by the values of m bits, where m is an integer greater than or equal to 2. The value of one bit in the m bits indicates whether the differential quality of the new beam is positive or negative. The values of the bits other than one bit in the m bits indicate the magnitude of the differential quality. The values of the bits other than one bit in the m bits are obtained by taking the values of the bits other than one bit in the m bits based on the magnitude of the differential quality of the new beam and the second interval according to the quantization step size xdB. x is greater than 0, and the second interval is the interval [0, C], or [0, C), or (0, C], or (0, C), where C is determined according to x and n.
[0574] In another possible implementation, C = x*(2 n-1 -1).
[0575] In another possible implementation, the differential quality of each new beam is indicated by a value of n bits, where n is an integer greater than or equal to 1; one or more new beams include a first beam and a second beam, the first beam does not satisfy the event occurrence conditions configured by the network device for the communication device 900, and the differential quality of the first beam is indicated by a first value of a first bit string, the first bit string including n bits, the first value being used to indicate that the first beam does not satisfy the event occurrence conditions; the second beam satisfies the event occurrence conditions configured by the network device for the communication device 900. The signal quality of the second beam is indicated by the value of the second bit string, which consists of n bits. The value of the second bit string is obtained based on the differential quality of the second beam and the third interval, with a quantization step size of x dB. x is greater than 0. The third interval is either [0, D], [0, D), (0, D], (0, D), [-D, 0], [-D, 0), (-D, 0], or (-D, 0), where D is determined based on x and n.
[0576] In another possible implementation, D = x * (2 n -2).
[0577] In another possible implementation, the measurement results of one or more new beams also include the indexes of one or more new beams.
[0578] In another possible implementation, one or more new beams are used. The index of each new beam is indicated by the value of y bits, where y is an integer greater than or equal to 1.
[0579] In another possible implementation, when the signal quality of the new beam does not meet the conditions for the event to occur as configured by the network device for the communication device 900, the value of y bits is a second value, which is used to indicate that the signal quality of the new beam does not meet the conditions for the event to occur.
[0580] In another possible implementation, one or more new beams include a third beam that satisfies the conditions for an event to occur as configured by the network device for the communication device 900. The differential quality of the third beam is indicated by the values of n bits, which are obtained based on the differential quality of the third beam and the values of the n bits in a fourth interval with a quantization step size of x dB. The fourth interval is [0, E], or [0, E], or (0, E], or (0, E), or [-E, 0], or (-E, 0], or (-E, 0], or (-E, 0) where E is determined by x and n, where x is greater than 0 and n is an integer greater than or equal to 1.
[0581] In another possible implementation, E = x*(2 n -1).
[0582] In another possible implementation, the processing module 902 is also used to: measure the reference signal corresponding to the serving beam from the network device, and obtain the measurement result of the serving beam.
[0583] In another possible implementation, the transceiver module 901 is also used to send the measurement results of the serving beam to the network device.
[0584] In another possible implementation, the measurement results of the serving beam include the signal quality of the serving beam; or, the measurement results of the serving beam include the differential quality of the serving beam, which is the difference between the signal quality of the serving beam and the signal quality of the new beam with the largest signal quality.
[0585] In another possible implementation, the differential quality of the serving beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the serving beam and the values of the n bits in a first interval with a quantization step size of x dB. The first interval is either the [A, B] dB interval, or the [A, B) interval, or the (A, B] interval, or the (A, B) interval. A and B are both determined based on x and n, where x is greater than 0.
[0586] In another possible implementation, the signal quality of the serving beam is indicated by the values of q bits, where q is an integer greater than or equal to 1. The values of the q bits are obtained based on the signal quality of the serving beam and the quantization step size of the fifth interval, with LdB or LdBm as the quantization step size, where L is greater than 0.
[0587] In another possible implementation, the measurement results of the serving beam also include the index of the serving beam.
[0588] The measurement results for the serving beam also include the index of the serving beam.
[0589] In another possible implementation, one or more new beams include S new beams, and the measurement results of one or more new beams include S first fields and S second fields. The S first fields correspond one-to-one with the S new beams, and the S second fields correspond one-to-one with the S new beams. Each first field is used to indicate the index of the new beam corresponding to the first field, and each second field is used to indicate the differential quality or signal quality of the new beam corresponding to the second field. The S first fields are located before the S second fields, and S is an integer greater than or equal to 1.
[0590] In another possible implementation, the i-th second field among the S second fields is used to indicate the signal quality or differential quality of the new beam indicated by the i-th first field among the S first fields, where i is an integer greater than or equal to 1 and less than or equal to S.
[0591] In another possible implementation, the measurement results of the serving beam include a third field, which is used to indicate the signal quality or differential quality of the serving beam. The third field is located before the S first fields, or after the K first fields and before the S second fields, or after the S second fields.
[0592] In another possible implementation, the transceiver module 901 is further configured to: receive first configuration information from the network device, the first configuration information being used to configure one or more events for the communication device 900.
[0593] In another possible implementation, the transceiver module 901 is further configured to: send capability information to the network device, the capability information including at least one of the following: whether the communication device 900 supports the capability of event-triggered reporting; one or more events corresponding to the event-triggered reporting supported by the communication device 900; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the communication device 900.
[0594] In another possible implementation, the serving beam includes any of the following: a beam corresponding to a QCL type D reference signal in the TCI-state indicated by the network device 900; a beam corresponding to an SSB resource associated with a QCL type D reference signal in the TCI-state indicated by the network device 900; a beam corresponding to a QCL type D reference signal in the downlink / common TCI-state and uplink TCI-state of the current uplink / downlink transmission application of the communication device 900; a beam corresponding to an SSB resource associated with a QCL type D reference signal in the downlink / common TCI-state and uplink TCI-state of the current uplink / downlink transmission application of the communication device 900; a beam corresponding to the reference signal with the best signal quality among the QCL type D reference signals in one or more TCI-states activated by the communication device 900; a beam corresponding to the reference signal with the worst signal quality among the QCL type D reference signals in one or more TCI-states activated by the communication device 900; or, a beam corresponding to one or more reference signals configured or indicated by the network device 900 for monitoring the serving beam.
[0595] In another possible implementation, one or more new beams include any of the following: a beam corresponding to a QCL type D reference signal in a TCI state activated by the network device for the communication device 900; a beam corresponding to a QCL type D reference signal in a TCI state configured by the network device for the communication device 900; or a beam corresponding to a reference signal configured by the network device for the communication device 900 to monitor the one or more new beams.
[0596] In another possible implementation, the processing module 902 is also used to: determine the number of new beams to be reported for measurement results, and / or determine the number of service beams to be reported for measurement results.
[0597] In another possible implementation, the network device configuration or communication protocol specifies that: if the communication device 900 reports the measurement results of N new beams, then the number of new beams to report measurement results is N, where N is an integer greater than or equal to 1; or, the network device configuration or communication protocol specifies that: if the communication device 900 reports the measurement results of M beams, and the number of serving beams to report measurement results is P, then the number of new beams to report measurement results is MP, where M is an integer greater than or equal to 2, and P is an integer greater than or equal to 1; or, the network device configuration or communication protocol specifies that: if the communication device 900 reports the signal quality of K new beams that satisfy the event occurrence conditions configured by the network device for the communication device 900, then the number of new beams to report measurement results is K, where K is an integer greater than or equal to 1; or...
[0598] The network device configuration or communication protocol stipulates that the communication device 900 reports the measurement results of N new beams. Among the N new beams, K new beams satisfy the conditions for the occurrence of the event configured by the network device for the communication device 900. Then, the number of new beams to report the measurement results is N, where N is an integer greater than or equal to 2 and K is an integer greater than or equal to 1.
[0599] In another possible implementation, the network device configuration or communication protocol specifies that: if the communication device 900 reports the measurement results of R service beams, where R is an integer greater than or equal to 1, then the number of service beams to report the measurement results is R; or, the network device configuration or communication protocol specifies that: if the communication device 900 does not report the measurement results of service beams, then the number of service beams to report the measurement results is 0; or, the network device configuration or communication protocol specifies that: if the communication device 900 reports the measurement results of service beams, and the number of service beams is 1, then the number of service beams to report the measurement results is 1.
[0600] In another possible implementation, the transceiver module 901 is further configured to: receive second configuration information from the network device, the second configuration information being configured to configure at least one of the following: whether the communication device 900 reports the signal quality of the serving beam; whether the communication device 900 reports the index of the serving beam; the number of beams reported by the communication device 900; the number of new beams reported by the communication device 900; the number of serving beams reported by the communication device 900; the number of new beams reported by the communication device 900 that meet the occurrence conditions of events configured by the network device for the communication device 900; or whether the communication device 900 reports the measurement results of the serving beam.
[0601] It should be understood that the specific procedures for each module to perform the above-mentioned corresponding processes have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.
[0602] Optionally, when the communication device 900 is a terminal device or a communication module within a terminal device, the processing module 902 in the above embodiments can be implemented by at least one processor or processor-related circuitry. Specifically, the processor may include a modem chip, or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The transceiver module 901 can be implemented by a transceiver or transceiver-related circuitry. The transceiver module 901 may also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.
[0603] Optionally, when the communication device 900 is a circuit or chip in a terminal device responsible for communication functions, such as a modem chip or a SoC chip or SIP chip containing a modem core, the function of the processing module 902 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processing cores. The function of the transceiver module 901 can be implemented by the interface circuit or data transceiver circuit on the aforementioned chip.
[0604] The following is another structural schematic diagram of the communication device according to an embodiment of this application. Please refer to... Figure 10 Communication devices can be used to perform Figure 8 The process executed by the network device in the illustrated embodiment can be found in the relevant descriptions in the foregoing method embodiments.
[0605] The communication device 1000 includes a transceiver module 1001. Optionally, a processing module 1002.
[0606] The processing module 1002 is used for data processing. The transceiver module 1001 can implement the corresponding communication functions. The transceiver module 1001 can also be called a communication interface or a communication module.
[0607] Optionally, the communication device 1000 may further include a storage module, which can be used to store program code, program instructions and / or data. The processing module 1002 can read the instructions and / or data in the storage module so that the communication device 1000 can implement the aforementioned method embodiments.
[0608] The communication device 1000 can be used to perform the actions performed by the network device in the above method embodiments. For example, it can be a network device or a communication module within a network device, or a circuit or chip within a network device responsible for communication functions. The communication device 1000 can be a network device or a component configurable within a network device. The processing module 1002 is used to perform processing-related operations on the network device side in the above method embodiments. The transceiver module 1001 is used to perform receiving-related operations on the network device side in the above method embodiments.
[0609] Optionally, the transceiver module 1001 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments.
[0610] It should be noted that the communication device 1000 may include a transmitting module but not a receiving module. Alternatively, the communication device 1000 may include a receiving module but not a transmitting module. Specifically, it depends on whether the above-described scheme performed by the communication device 1000 includes both transmitting and receiving actions. For example, the communication device 1000 is used to perform the above-described... Figure 8 The actions performed by the network device in the illustrated embodiment are shown above. For details, please refer to the above. Figure 8 The relevant descriptions in the illustrated embodiments will not be elaborated here.
[0611] For example, the communication device 1000 is used to execute the following scheme:
[0612] The transceiver module 1001 is used to send reference signals of one or more new beams to the terminal device; and to receive measurement results of one or more new beams from the terminal device; wherein the measurement results of the one or more new beams are obtained by the terminal device measuring the reference signals of the one or more new beams, and the measurement results of the one or more new beams include the differential quality of the one or more new beams, wherein the differential quality of each new beam in the one or more new beams is the difference between the signal quality of each new beam and the signal quality of the serving beam of the terminal device, and the one or more new beams are beams of the terminal device that are different from the serving beam.
[0613] For example, the communication device 1000 is used to execute the following scheme:
[0614] The transceiver module 1001 is configured to transmit reference signals of one or more new beams to the terminal device; and receive measurement results of one or more new beams from the terminal device; wherein the measurement results of the one or more new beams are obtained by the terminal device measuring the reference signals of the one or more new beams, the one or more new beams include a new beam, and the measurement results of the one or more new beams include the signal quality of the new beam; or, the one or more new beams include multiple new beams, and the measurement results of the one or more new beams include the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the new beam with the highest signal quality among the multiple new beams, the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality, and the one or more new beams are beams of the terminal device that are different from the service beam of the terminal device.
[0615] In one possible implementation, the one or more new beams include: at least one new beam that satisfies the conditions for the occurrence of an event configured by the communication device 1000 for the terminal device.
[0616] In another possible implementation, the differential quality of each new beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the new beam and the values of the n bits in the first interval with a quantization step size of x dB. The first interval is the [A, B] dB interval, or the [A, B) interval, or the (A, B] interval, or the (A, B) interval. A and B are determined based on x and n, where x is greater than 0.
[0617] In another possible implementation, A = -x * 2n-1 B = x*(2 n-1 -1); or, A = -x*(2 n-1 -1), B=x*2 n-1 .
[0618] In another possible implementation, A = 0, B = x*(2 n -1); or, A = -x*(2 n -1), B = 0.
[0619] In another possible implementation, the differential quality of each new beam is indicated by the values of m bits, where m is an integer greater than or equal to 2. The value of one bit in the m bits indicates whether the differential quality of the new beam is positive or negative. The values of the bits other than one bit in the m bits indicate the magnitude of the differential quality. The values of the bits other than one bit in the m bits are obtained by taking the values of the bits other than one bit in the m bits based on the magnitude of the differential quality of the new beam and the second interval according to the quantization step size xdB. x is greater than 0, and the second interval is the interval [0, C], or [0, C), or (0, C], or (0, C), where C is determined according to x and n.
[0620] In another possible implementation, C = x*(2 n-1 -1).
[0621] In another possible implementation, the differential quality of each new beam is indicated by a value of n bits, where n is an integer greater than or equal to 1; one or more new beams include a first beam and a second beam, where the first beam does not satisfy the event occurrence conditions configured by the communication device 1000 for the terminal device, and the differential quality of the first beam is indicated by a first value of a first bit string, which includes n bits, and the first value is used to indicate that the first beam does not satisfy the event occurrence conditions; the second beam satisfies the event occurrence conditions configured by the communication device 1000 for the terminal device. The signal quality of the second beam is indicated by the value of the second bit string, which consists of n bits. The value of the second bit string is obtained based on the differential quality of the second beam and the third interval, with a quantization step size of x dB. x is greater than 0. The third interval is [0, D], or [0, D), or (0, D], or (0, D), or [-D, 0], or [-D, 0), or (-D, 0], or (-D, 0), where D is determined based on x and n.
[0622] In another possible implementation, D = x * (2 n -2).
[0623] In another possible implementation, the measurement results of one or more new beams also include the indexes of one or more new beams.
[0624] In another possible implementation, one or more new beams are used. The index of each new beam is indicated by the value of y bits, where y is an integer greater than or equal to 1.
[0625] In another possible implementation, when the signal quality of the new beam does not meet the conditions for the event configured by the communication device 1000 for the terminal device, the value of y bits is a second value, which is used to indicate that the signal quality of the new beam does not meet the conditions for the event to occur.
[0626] In another possible implementation, one or more new beams include a third beam that satisfies the event conditions configured by the communication device 1000 for the terminal device. The differential quality of the third beam is indicated by the values of n bits. The values of the n bits are obtained based on the differential quality of the third beam and the values of the n bits in a fourth interval with a quantization step size of xdB. The fourth interval is the interval [0, E], or [0, E], or (0, E], or (0, E), or [-E, 0], or (-E, 0], or (-E, 0], or (-E, 0) where E is determined by x and n, where x is greater than 0 and n is an integer greater than or equal to 1.
[0627] In another possible implementation, E = x*(2 n -1).
[0628] In another possible implementation, the transceiver module 1001 is also used to receive measurement results from the service beam of the terminal device.
[0629] In another possible implementation, the measurement results of the serving beam include the signal quality of the serving beam; or, the measurement results of the serving beam include the differential quality of the serving beam, which is the difference between the signal quality of the serving beam and the signal quality of the new beam with the largest signal quality.
[0630] In another possible implementation, the differential quality of the serving beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the serving beam and the values of the n bits in a first interval with a quantization step size of x dB. The first interval is either the [A, B] dB interval, or the [A, B) interval, or the (A, B] interval, or the (A, B) interval. A and B are both determined based on x and n, where x is greater than 0.
[0631] In another possible implementation, the signal quality of the serving beam is indicated by the values of q bits, where q is an integer greater than or equal to 1. The values of the q bits are obtained based on the signal quality of the serving beam and the quantization step size of the fifth interval, with LdB or LdBm as the quantization step size, where L is greater than 0.
[0632] In another possible implementation, the measurement results of the serving beam also include the index of the serving beam.
[0633] In another possible implementation, one or more new beams include S new beams, and the measurement results of one or more new beams include S first fields and S second fields. The S first fields correspond one-to-one with the S new beams, and the S second fields correspond one-to-one with the S new beams. Each first field is used to indicate the index of the new beam corresponding to the first field, and each second field is used to indicate the differential quality or signal quality of the new beam corresponding to the second field. The S first fields are located before the S second fields, and S is an integer greater than or equal to 1.
[0634] In another possible implementation, the i-th second field among the S second fields is used to indicate the signal quality or differential quality of the new beam indicated by the i-th first field among the S first fields, where i is an integer greater than or equal to 1 and less than or equal to S.
[0635] In another possible implementation, the measurement results of the serving beam include a third field, which is used to indicate the signal quality or differential quality of the serving beam. The third field is located before the S first fields, or after the K first fields and before the S second fields, or after the S second fields.
[0636] In another possible implementation, the transceiver module 1001 is further configured to: send first configuration information to the terminal device, the first configuration information being used to configure one or more events for the terminal device.
[0637] In another possible implementation, the signal quality of the new beam with the highest signal quality is indicated by the value of t bits, where t is an integer greater than or equal to 1. The value of t bits is obtained based on the signal quality of the new beam with the highest signal quality and the sixth interval by taking the value of t bits with a quantization step size of hdB or hdBm, where t is an integer greater than or equal to 1 and h is greater than 0.
[0638] In another possible implementation, the transceiver module 1001 is further configured to: receive capability information from the terminal device, the capability information including at least one of the following: whether the terminal device supports the capability of event-triggered reporting; one or more events corresponding to the event-triggered reporting supported by the terminal device; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the terminal device.
[0639] In another possible implementation, the transceiver module 1001 is further configured to: send second configuration information to the terminal device, the second configuration information being configured to configure at least one of the following: whether the terminal device reports the signal quality of the serving beam; whether the terminal device reports the index of the serving beam; the number of beams reported by the terminal device; the number of new beams reported by the terminal device; the number of serving beams reported by the terminal device; the number of new beams reported by the terminal device that meet the occurrence conditions of the event configured by the communication device 1000 for the terminal device; or whether the terminal device reports the measurement results of the serving beam.
[0640] It should be understood that the specific procedures for each module to perform the above-mentioned corresponding processes have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.
[0641] The processing module 1002 in the above embodiments can be implemented by at least one processor or processor-related circuitry. The transceiver module 1001 can be implemented by a transceiver or transceiver-related circuitry. The transceiver module 1001 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.
[0642] This application also provides a communication device 1100. Please refer to... Figure 11 The communication device 1100 includes a processor 1110 coupled to a memory 1120. The memory 1120 stores computer programs or instructions and / or data. The processor 1110 executes the computer programs or instructions and / or data stored in the memory 1120, causing the methods in the above method embodiments to be performed. The communication device 1100 is used to implement the operations performed by the terminal device or network device in the above method embodiments.
[0643] Optionally, the communication device 1100 may include one or more processors 1110.
[0644] Optional, such as Figure 11 As shown, the communication device 1100 may also include a memory 1120.
[0645] Optionally, the communication device 1100 may include one or more memory 1120s.
[0646] Optionally, the memory 1120 can be integrated with the processor 1110 or set separately.
[0647] Optional, such as Figure 11 As shown, the communication device 1100 may further include a transceiver 1130, which is used for receiving and / or transmitting signals. For example, the processor 1110 is used to control the transceiver 1130 to receive and / or transmit signals.
[0648] This application also provides a communication device 1200, which can be a terminal device, a processor in the terminal device, or a chip. The communication device 1200 can be used to perform the operations performed by the terminal device in the above method embodiments.
[0649] When the communication device 1200 is a terminal device Figure 12 A simplified structural diagram of a terminal device is shown. (For example...) Figure 12 As shown, the terminal device includes a processor, a memory, and a transceiver. The memory can store computer program code, and the transceiver includes a transmitter 1231, a receiver 1232, radio frequency circuitry (not shown in the figure), an antenna 1233, and input / output devices (not shown in the figure).
[0650] The processor is mainly used to process communication protocols and communication data; control terminal devices; execute software programs; and process data from software programs.
[0651] Memory is mainly used to store software programs and data.
[0652] Radio frequency (RF) circuits are mainly used for the conversion between baseband signals and RF signals, as well as for the processing of RF signals.
[0653] Antennas are primarily used for transmitting and receiving radio frequency signals in the form of electromagnetic waves.
[0654] Input / output devices can include touchscreens, displays, or keyboards. They are primarily used to receive user input and output data to the user. It should be noted that some types of terminal devices may not have input / output devices.
[0655] When data needs to be transmitted, the processor performs baseband processing on the data to be transmitted and outputs a baseband signal to the radio frequency (RF) circuit. The RF circuit then processes the baseband signal and transmits it outwards as electromagnetic waves via an antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna. The RF circuit converts the RF signal back into a baseband signal and outputs it to the processor. The processor converts the baseband signal back into data and processes that data. For ease of explanation, Figure 12 Only one memory, processor, and transceiver are shown in the illustration. In actual terminal devices, there may be one or more processors and one or more memories. Memory may also be referred to as storage medium or storage device, etc. Memory may be set up independently of the processor or integrated with the processor; this application does not limit this.
[0656] In this embodiment, the antenna and radio frequency circuit with transceiver function can be regarded as the transceiver module of the terminal device, and the processor with processing function can be regarded as the processing module of the terminal device.
[0657] like Figure 12 As shown, the terminal device includes a processor 1210, a memory 1220, and a transceiver 1230. The processor 1210 may also be referred to as a processing unit, processing board, processing module, or processing device, etc. The transceiver 1230 may also be referred to as a transceiver unit, transceiver, or transceiver device, etc.
[0658] Optionally, the device in transceiver 1230 used to implement the receiving function can be considered a receiving module, and the device in transceiver 1230 used to implement the transmitting function can be considered a transmitting module. That is, transceiver 1230 includes a receiver and a transmitter. A transceiver may also be called a transceiver unit, transceiver module, or transceiver circuit, etc. A receiver may also be called a receiver unit, receiving module, or receiving circuit, etc. A transmitter may also be called a transmitter, transmitting module, or transmitting circuit, etc.
[0659] Processor 1210 is used to perform the above Figure 8 The embodiment shown illustrates the processing actions on the terminal device side. The transceiver 1230 is used to perform the above-described actions. Figure 8 The embodiment shown illustrates the sending and receiving actions on the terminal device side.
[0660] It should be understood that Figure 12 This is merely an example and not a limitation; the terminal device described above, which includes a transceiver module and a processing module, may not rely on... Figure 9 or Figure 12 The structure shown.
[0661] When the communication device 1200 is a chip, the chip includes a processor, a memory, and a transceiver. The transceiver can be an input / output circuit or a communication interface. The processor can be a processing module integrated on the chip, a microprocessor, or an integrated circuit. In the above method embodiments, the sending operation of the terminal device can be understood as the output of the chip, and the receiving operation of the terminal device in the above method embodiments can be understood as the input of the chip.
[0662] This application also provides a communication device 1300, which can be an access network device or a chip. The communication device 1300 can be used to perform the above-described... Figure 8 The operations performed by the network device in the illustrated embodiment.
[0663] When the communication device 1300 is a network device, such as a base station. Figure 13 A simplified schematic diagram of a base station structure is shown. The base station includes sections 1310, 1320, and 1330.
[0664] The 1310 section is mainly used for baseband processing and controlling the base station; the 1310 section is usually the control center of the base station, which can be called the processor, and is used to control the base station to perform the processing operations on the network device side in the above method embodiments.
[0665] Section 1320 is primarily used to store computer program code and data.
[0666] Section 1330 is primarily used for transmitting and receiving radio frequency (RF) signals, as well as converting RF signals to baseband signals. Section 1330 is commonly referred to as a transceiver module, transceiver, transceiver circuit, or transceiver unit. The transceiver module of section 1330, also known as a transceiver or transceiver unit, includes antenna 1333 and RF circuitry (not shown in the figure), where the RF circuitry is mainly used for RF processing. Optionally, the device in section 1330 that performs the receiving function can be considered a receiver, and the device that performs the transmitting function can be considered a transmitter; that is, section 1330 includes receiver 1332 and transmitter 1331. The receiver can also be called a receiving module, receiver circuit, or receiving circuit, and the transmitter can be called a transmitting module, transmitter, or transmitting circuit.
[0667] Sections 1310 and 1320 may include one or more circuit boards, each of which may include one or more processors and one or more memories. The processors are used to read and execute programs from the memories to implement baseband processing functions and control the base station. If multiple circuit boards exist, they can be interconnected to enhance processing capabilities. As an alternative implementation, multiple circuit boards may share one or more processors, multiple circuit boards may share one or more memories, or multiple circuit boards may simultaneously share one or more processors.
[0668] For example, in one implementation, the transceiver module of part 1330 is used to perform... Figure 8 The transmit / receive related processes are performed by the network device in the illustrated embodiment. The processor in section 1310 is used to execute... Figure 8 The illustrated embodiment describes the processes related to the processing performed by the network device.
[0669] It should be understood that Figure 13 This is for illustrative purposes only and not as a limitation. The network devices mentioned above, including processors, memory, and transceivers, may be independent of... Figure 10 or Figure 13 The structure shown.
[0670] When the communication device 1300 is a chip, the chip includes a transceiver, a memory, and a processor. The transceiver can be an input / output circuit or a communication interface; the processor can be a processor integrated on the chip, a microprocessor, or an integrated circuit. In the above method embodiments, the transmitting operation of the network device can be understood as the output of the chip, and the receiving operation of the network device in the above method embodiments can be understood as the input of the chip.
[0671] This application also provides a computer-readable storage medium having stored thereon computer instructions for implementing the methods executed by a terminal device or a network device in the above method embodiments.
[0672] For example, when the computer program is executed by a computer, it enables the computer to implement the methods executed by the terminal device or network device in the above method embodiments.
[0673] This application also provides a computer program product containing instructions that, when executed by a computer, cause the computer to perform the method described in the above method embodiments, which is executed by a terminal device or a network device.
[0674] This application also provides a communication system, which includes a terminal device and a network device. The terminal device is used to perform the above-described... Figure 8 In the embodiments shown, the terminal device performs some or all of the operations, and the network device performs the above-mentioned operations. Figure 8 The network device performs some or all of the operations shown in the embodiments.
[0675] This application also provides a chip device, including a processor, configured to call computer programs or computer instructions stored in the memory, so that the processor executes the above-described... Figure 8 The method provided in the illustrated embodiment.
[0676] In one possible implementation, the input of the chip device corresponds to the above. Figure 8 In any of the embodiments shown, the receiving operation of the chip device corresponds to the above-described... Figure 8 The sending operation in any of the embodiments shown.
[0677] Optionally, the processor is coupled to the memory via an interface.
[0678] Optionally, the chip device may also include a memory that stores computer programs or computer instructions.
[0679] The processor mentioned above can be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more devices used to control the above. Figure 8 The illustrated embodiments provide an integrated circuit for program execution of the method provided in any of the embodiments. The memory mentioned above may be read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, such as random access memory (RAM).
[0680] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the explanations and beneficial effects of the relevant contents in any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, and will not be repeated here.
[0681] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.
[0682] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0683] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0684] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essential contribution of the technical solution of this application, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.
[0685] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A measurement and reporting method, characterized in that, The method includes: Measure the reference signal corresponding to one or more new beams from the network device to obtain the measurement results of the one or more new beams. The measurement results of the one or more new beams include the differential quality of the one or more new beams. The differential quality of each new beam in the one or more new beams is the difference between the signal quality of each new beam and the signal quality of the serving beam of the terminal device. The one or more new beams are beams of the terminal device that are different from the serving beam. The measurement results of the one or more new beams are sent to the network device.
2. A measurement and reporting method, characterized in that, The method includes: Measure the reference signal corresponding to one or more new beams from the network device to obtain the measurement results of the one or more new beams; Wherein, the one or more new beams include a single new beam, and the measurement result of the one or more new beams includes the signal quality of the single new beam; or, the one or more new beams include multiple new beams, and the measurement result of the one or more new beams includes the signal quality of the new beam with the highest signal quality among the multiple new beams and the differential quality of the new beams other than the new beam with the highest signal quality among the multiple new beams, wherein the differential quality of each new beam is the difference between the signal quality of each new beam and the signal quality of the new beam with the highest signal quality, and the one or more new beams are beams of the terminal device that are different from the service beam of the terminal device; The measurement results of the one or more new beams are sent to the network device.
3. The method according to claim 1 or 2, characterized in that, The one or more new beams include: at least one new beam that satisfies the conditions for the occurrence of an event configured by the network device for the terminal device.
4. The method according to any one of claims 1 to 3, characterized in that, The differential quality of each new beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the new beam and the values of the n bits in a first interval with a quantization step size of x dB. The first interval is the [A, B] dB interval, where A and B are determined based on x and n, where x is greater than 0.
5. The method according to claim 4, characterized in that, The A = -x*2 n-1 The B = x*(2 n-1 -1); or, the A = -x*(2 n-1 -1), the B = x * 2 n-1 .
6. The method according to claim 4, characterized in that, Where A = 0, and B = x*(2 n -1); or, the A = -x*(2 n -1), where B = 0.
7. The method according to claim 1 or 3, characterized in that, The differential quality of each new beam is indicated by the values of m bits, where m is an integer greater than or equal to 2. The value of one of the m bits indicates whether the differential quality of the new beam is positive or negative. The values of the remaining bits in the m bits represent the magnitude of the differential quality. The values of the remaining bits in the m bits are obtained by taking the values of the remaining bits in the m bits based on the magnitude of the differential quality of the new beam and a second interval, with a quantization step size of x dB. The x is greater than 0, the second interval is [0, C], and C is determined based on the x and the n.
8. The method according to claim 7, characterized in that, The C = x*(2) n-1 -1).
9. The method according to any one of claims 1 to 3, characterized in that, The differential quality of each new beam is indicated by the value of n bits, where n is an integer greater than or equal to 1; The one or more new beams include a first beam and a second beam. The first beam does not meet the event occurrence conditions configured by the network device for the terminal device. The differential quality of the first beam is indicated by a first value of a first bit string, which includes n bits. The first value indicates that the signal quality of the new beam does not meet the event occurrence conditions. The second beam meets the event occurrence conditions configured by the network device for the terminal device. The differential quality of the second beam is indicated by a second bit string, which includes n bits. The value of the second bit string is obtained based on the differential quality of the second beam and a third interval with a quantization step size of x dB. The x value is greater than 0, and the third interval is [0, D] or [-D, 0]. The D value is determined based on the x value and the n bits.
10. The method according to claim 9, characterized in that, The D = x*(2) n -2).
11. The method according to any one of claims 1 to 10, characterized in that, The measurement results of the one or more new beams also include the indexes of the one or more new beams.
12. The method according to any one of claims 1 to 11, characterized in that, The index of each of the one or more new beams is indicated by the value of y bits, where y is an integer greater than or equal to 1.
13. The method according to claim 12, characterized in that, When the new beam does not meet the event occurrence conditions configured by the network device for the terminal device, the value of the y bits is a second value, which is used to indicate that the signal quality of the new beam does not meet the event occurrence conditions.
14. The method according to claim 13, characterized in that, The one or more new beams include a third beam that satisfies the conditions for an event to occur as configured by the network device for the terminal device. The differential quality of the third beam is indicated by the values of n bits, which are obtained based on the differential quality of the third beam and a fourth interval with a quantization step size of x dB. The fourth interval is [0, E] or [-E, 0], where E is determined based on x and n, where x is greater than 0 and n is an integer greater than or equal to 1.
15. The method according to claim 14, characterized in that, The E = xΦ(2) n -1).
16. The method according to any one of claims 1 to 15, characterized in that, The method further includes: The reference signal corresponding to the serving beam from the network device is measured to obtain the measurement result of the serving beam.
17. The method according to claim 16, characterized in that, The method further includes: The measurement results of the service beam are sent to the network device.
18. The method according to claim 17, characterized in that, Before sending the measurement results of the serving beam to the network device, the method further includes: The terminal device receives configuration information from the network device, which is used to configure the terminal device to report the measurement results of the service beam.
19. The method according to any one of claims 16 to 18, characterized in that, The measurement results of the serving beam include the signal quality of the serving beam; or, The measurement results of the service beam include the differential quality of the service beam, which is the difference between the signal quality of the service beam and the signal quality of the new beam with the largest signal quality.
20. The method according to claim 19, characterized in that, The differential quality of the serving beam is indicated by the values of n bits, where n is an integer greater than or equal to 1. The values of the n bits are obtained based on the differential quality of the serving beam and a first interval with a quantization step size of x dB. The first interval is the [A, B] dB interval, where A and B are determined based on x and n, where x is greater than 0.
21. The method according to claim 19, characterized in that, The signal quality of the serving beam is indicated by the values of q bits, where q is an integer greater than or equal to 1. The values of the q bits are obtained based on the signal quality of the serving beam and the fifth interval, with a quantization step size of LdB or LdBm, where L is greater than 0.
22. The method according to any one of claims 16 to 21, characterized in that, The measurement results of the service beam also include the index of the service beam.
23. The method according to any one of claims 1 to 22, characterized in that, The one or more new beams include S new beams, and the measurement results of the one or more new beams include S first fields and S second fields. The S first fields correspond one-to-one with the S new beams, and the S second fields correspond one-to-one with the S new beams. Each first field is used to indicate the index of the new beam corresponding to the first field, and each second field is used to indicate the differential quality or signal quality of the new beam corresponding to the second field. The S first fields are located before the S second fields, and S is an integer greater than or equal to 1.
24. The method according to claim 23, characterized in that, The i-th second field among the S second fields is used to indicate the signal quality or differential quality of the new beam indicated by the i-th first field among the S first fields, where i is an integer greater than or equal to 1 and less than or equal to S.
25. The method according to claim 22 or 23, characterized in that, The method further includes: The reference signal corresponding to the serving beam from the network device is measured to obtain the measurement result of the serving beam; wherein the measurement result of the serving beam includes the signal quality of the serving beam; or, the measurement result of the serving beam includes the differential quality of the serving beam, which is the difference between the signal quality of the serving beam and the signal quality of the new beam with the largest signal quality. The measurement results of the serving beam are sent to the network device. The measurement results of the serving beam include a third field, which is used to indicate the signal quality or differential quality of the serving beam. The third field is located before the S first fields, or after the K first fields and before the S second fields, or after the S second fields.
26. The method according to any one of claims 3, 8, 9, 12, and 13, characterized in that, The events configured by the network device for the terminal device include one or more of the following: There exists at least one new beam whose signal quality is greater than that of the serving beam, and the difference between the signal quality of the at least one new beam and the signal quality of the serving beam is greater than or equal to a first threshold value. There exists a new beam whose signal quality is greater than the second threshold. The signal quality of the serving beam is less than the third threshold, and there is at least one new beam whose signal quality is greater than the fourth threshold, wherein the fourth threshold is greater than or equal to the third threshold. There exists a situation where the absolute value of the difference between the signal quality of at least one new beam and the signal quality of the serving beam is less than the fifth threshold value; The serving beam does not belong to the K best quality new beams measured by the terminal device, where K is an integer greater than or equal to 1; There exists a new beam whose signal quality differs from the signal quality of the beam with the worst signal quality among the beams corresponding to the TCI state activated by the network device for the terminal device by the terminal device by a value greater than the sixth threshold. There exists a new beam whose signal quality differs from the signal quality of the best-quality beam among the beams corresponding to the TCI state activated by the network device for the terminal device by the terminal device by a value greater than the seventh threshold. There exist at least two new beams whose signal quality differs from the signal quality of the serving beam by a value greater than the eighth threshold; or, There exists at least one new beam whose signal quality is greater than the ninth threshold value of the beam corresponding to the reference signal configured for the terminal device.
27. The method according to any one of claims 2 to 4, 6, and 9 to 26, characterized in that, The signal quality of the new beam with the highest signal quality is indicated by the value of t bits, where t is an integer greater than or equal to 1. The value of t bits is obtained based on the signal quality of the new beam with the highest signal quality and the sixth interval by taking the value of t bits with a quantization step size of hdB or hdBm, where t is an integer greater than or equal to 1 and h is greater than 0.
28. The method according to any one of claims 1 to 27, characterized in that, The method further includes: Send capability information to the network device, the capability information including at least one of the following: whether the terminal device supports the capability of event-triggered reporting; one or more events corresponding to the event-triggered reporting supported by the terminal device; or, the maximum number of reporting beams or the maximum number of new reporting beams supported by the terminal device.
29. The method according to any one of claims 1 to 28, characterized in that, The service beam includes any of the following: The network device is the beam corresponding to the quasi-iso-QCL type D reference signal in the Transmission Configuration Number (TCI) state indicated by the terminal device. The network device is the beam corresponding to the synchronization signal-broadcast block SSB resource associated with the QCL type D reference signal in the TCI state indicated by the terminal device; The beam corresponding to the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device; The beams corresponding to the SSB resources associated with the QCL type D reference signal in the downlink / common TCI state and uplink TCI state of the current uplink and downlink transmission application of the terminal device. The network device is the beam corresponding to the reference signal with the best signal quality among the quasi-iso-QCL type D reference signals in one or more TCI states activated by the terminal device; The network device is the beam corresponding to the reference signal with the worst signal quality among the quasi-isotropic QCL type D reference signals in one or more TCI states activated by the terminal device; or... The network device is configured or indicated by the terminal device for monitoring one or more reference signals corresponding to the service beam.
30. The method according to any one of claims 1 to 29, characterized in that, The one or more new beams include any of the following: The network device is the beam corresponding to the QCL type D reference signal in the TCI state activated by the terminal device; The network device configures the terminal device with the beam corresponding to the QCL type D reference signal in the TCI state; or... The network device is configured for the terminal device to monitor the reference signal corresponding to the one or more new beams.
31. A communication device, characterized in that, The communication device includes a transceiver module and a processing module; the transceiver module is used to perform the transceiver operation of the method as described in any one of claims 1 to 30, and the processing module is used to perform the processing operation of the method as described in any one of claims 1 to 30.
32. A communication device, characterized in that, The communication device includes a processor for executing a computer program or computer instructions stored in a memory to perform the method as described in any one of claims 1 to 30.
33. A computer-readable storage medium, characterized in that, It stores a computer program thereon, which, when executed by a communication device, causes the communication device to perform the method as described in any one of claims 1 to 30.