WO2022242610A1 - 一种波束传输方法及相关装置 - Google Patents
一种波束传输方法及相关装置 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Definitions
- the present application relates to the technical field of communications, and in particular to a beam transmission method and related devices.
- the frequencies supported by wireless communication range from centimeter waves and millimeter waves less than 100 GHz to millimeter waves greater than 100 GHz, to terahertz, and even hundreds of terahertz.
- the transmitter improves the coverage of each synchronization signal block by performing beam scanning on the synchronization signal block (SS block).
- Beam scanning means that the sending end sends multiple beams to the receiving end, and the receiving end scans and receives the multiple beams, then measures the channels and/or signals corresponding to the multiple beams, and feeds back the measurement results to the sending end, so that Both the sending end and the receiving end select the beam with the best measurement result to access, that is, beam alignment.
- the beam alignment time of the sending end and the receiving end will affect the time required for the initial access of the sending end and the receiving end. Therefore, how to shorten the beam alignment time is one of the urgent problems to be solved.
- Embodiments of the present application provide a beam transmission method and a related device, which are beneficial to shorten the time for beam alignment.
- an embodiment of the present application provides a beam transmission method.
- the first communication device determines the first transmission resources of the S beam groups, and then sends the S beam groups according to the first transmission resources. Any beam group in the S beam groups is the first beam group.
- the first beam group includes L beams carrying one channel and/or signal.
- the L beams occupy N1 frequency domain resources, and each frequency domain resource corresponds to L/N1 time domain resources, S is a positive integer; L is a positive integer greater than or equal to 2, and N1 is a positive integer less than or equal to L.
- S is equal to 1, and N1 is a positive integer greater than or equal to 2. That is to say, when the first communication device only transmits the first beam group to the second communication device, the L beams included in the first beam group occupy at least two frequency domain resources, so that the second communication device supporting large bandwidth can By receiving the L beams on at least two frequency domain resources, the reception of the L beams can be completed in a short time, which is beneficial to shortening the time for aligning the L beams.
- the time domain resources corresponding to the N1 frequency domain resources occupied by the above L beams are the same; or, the time domain resources corresponding to the N2 frequency domain resources among the N1 frequency domain resources occupied by the above L beams are There are one or more offset values between domain resources, and N2 is less than or equal to N1.
- the first communication device can transmit the L beams on relatively concentrated time domain resources, which is beneficial for the second communication device to complete the L beams in a relatively short period of time. Beam reception, which in turn helps to shorten the beam alignment time.
- the time domain resources corresponding to some of the N1 frequency domain resources may be different.
- the S beam groups are sent according to a transmission cycle, and the transmission cycle includes a first cycle, or, the transmission cycle includes a first cycle and one or more second cycles, and the second cycle is smaller than the first cycle. cycle.
- the first period is the period during which S beam groups are transmitted
- the second period is the time interval during which multiple beams in the S beam groups transmit multiple times in the first period.
- the first period may also refer to multiple One transmission period for each of the beams.
- the S beam groups are sent according to the transmission time or the candidate transmission time of the aperiodic transmission. That is to say, the first communication device can more flexibly send S beam groups at the transmission time or certain candidate transmission times, which can not only save the resource overhead of the first communication device, but also enable the second communication device to transmit in a short time Complete the reception of multiple beams within.
- the transmission time or candidate transmission time of the aperiodic transmission may be indicated by the third communication device through signaling, that is, the third communication device passes The signaling informs the first communication device on which transmission time or which candidate transmission time to send the S beam groups aperiodically.
- each beam group there is a shift relationship between beam numbers of beams in different time domains and/or beam numbers of beams in different frequency domains in the range of 0 to M-1;
- the beam numbers of the beam subgroups have a shift relationship within a range from 0 to M ⁇ 1; M is the number of beams in each beam group, and M is a positive integer.
- the beam numbers of beams in different time domains may refer to the beam numbers of beams occupying a frequency domain resource and different time domain resources corresponding to the frequency domain resources, or may refer to the beam numbers of beams occupying different time domain resources and corresponding to each time domain resource.
- the beam numbers of beams on multiple frequency domain resources; the beam numbers of beams on different frequency domains can refer to the beam numbers of beams occupying one time domain resource and different frequency domain resources corresponding to the time domain resource, or can refer to beams occupying different frequency domains resources and beam numbers of beams on multiple time domain resources corresponding to each frequency domain resource.
- the above-mentioned relationship of shifting may refer to a relationship of shifting or a relationship of cyclic shifting.
- beam numbers between different beam groups have a relationship of cyclic shift. That is to say, when the number of time domain resources or the number of frequency domain resources occupied by each beam group is the same, the beam number of the next beam group is numbered based on the relationship between the beam number of the current beam group and the cyclic shift.
- the first communication device may further receive feedback information, where the feedback information includes measurement results of signals and/or channels corresponding to the S beam groups. It can be seen that the first communication device can obtain the measurement results of the signals and/or channels corresponding to the S beam groups by receiving the feedback information, so that the optimal beam can be determined according to the measurement results, that is, beam alignment with the second communication device can be achieved.
- the signal and/or channel measurement results corresponding to the same beam or beams with the same beam number correspond to one feedback resource.
- the feedback information feeds back the measurement results of signals and/or channels corresponding to S beam groups
- the measurement results of signals and/or channels corresponding to the same beam or beams with the same beam number in different beam groups share one feedback resource , which is beneficial to save the overhead of feedback resources.
- the feedback information includes the measurement results of the signals and/or channels corresponding to the S beam groups in the first period or in the second period; the first period or the second period is the above S beam groups The transmission period of the group; or, the feedback information includes the measurement results of signals and/or channels corresponding to the S beams in the S beam groups when the S beam groups are sent aperiodically.
- the feedback information feeds back the measurement results of the signals and/or channels corresponding to the S beam groups in the first cycle or the second cycle, or, when the S beam groups are aperiodically transmitted, the S beam groups One or more beams correspond to signal and/or channel measurements.
- the feedback information includes measurement results of signals and/or channels corresponding to one or more beams whose measurement results are greater than the first threshold, that is, the feedback information feeds back signals and/or channels with better measurement results or channel measurement results, so that the first communication device can quickly determine the optimal beam from the obtained measurement results, and the time for beam alignment can be shortened.
- signals corresponding to one or more beams whose measurement results are greater than the first threshold and/or feedback resources corresponding to channel measurement results are carried on one or more frequencies.
- the feedback resource corresponding to the signal and/or channel measurement result of one or more beams whose measurement result is greater than the first threshold is carried on one frequency, the feedback resource can be saved; when the measurement result is greater than one or more of the first threshold
- the measurement results fed back on each frequency domain are the measurement results of the signals and/or channels corresponding to the frequency, so that each The feedback information does not need to carry additional frequency information, which can reduce the signaling amount of the feedback information, thereby saving feedback resources.
- the feedback information indicates different frequency domain resources corresponding to signals and/or channels corresponding to beams having the same quasi-co-located QCL relationship. It can be seen that the feedback information can also indicate the different frequency domain resources corresponding to the signals and/or channels corresponding to the beams with the same quasi-co-located QCL relationship, so that the first communication device can subsequently correspond to the beams with the same quasi-co-located QCL relationship.
- the different frequency domain resources of different frequency domain resources configure the transmission of different beams on a large bandwidth, thereby avoiding the problem of beam deviation when different frequencies correspond to different beams when large bandwidth communication cannot detect the wave speed or wrong beam selection.
- N1 frequency domain resources are carried on N1 carriers, or on N1 subbands of one carrier, or on N1 bandwidth parts BWP of one carrier, or on N1 subbands of more than one carrier , or more than N1 bandwidth parts BWP of one carrier.
- the N1 frequency domain resources can be carried on frequency domain resources of different bandwidths, so that the transmitted L beams support second communication devices with different bandwidth requirements to receive them.
- the first communication device may also determine a second transmission resource for transmitting K beams to the fourth communication device, and then send the K beams to the fourth communication device according to the second transmission resource;
- the second The transmission resource may be determined by the first communication device according to the bandwidth capability supported by the fourth communication device, K is a positive integer greater than or equal to 2, the second transmission resource occupies N3 frequency domain resources, and each of the N3 frequency domain resources
- the frequency domain resources correspond to K/N3 time domain resources, where N3 is a positive integer less than or equal to K, and K is divisible by N3.
- the first communication device can determine the transmission resources for transmitting different numbers of beams according to the bandwidth capabilities supported by different second communication devices, so that different second communication devices can receive data on different time-frequency resources according to the bandwidth capabilities supported by themselves.
- Multiple beams that is, the second communication device that supports large bandwidth completes the reception of multiple beams in a short time, which can shorten the beam alignment time, and the second communication device that supports narrow bandwidth receives multiple beams in a time-division multiplexed manner Or receive multiple beams in a time-frequency division multiplexing manner on a narrower bandwidth.
- the present application also provides a beam transmission method.
- the beam transmission method in this aspect corresponds to the beam transmission method in the first aspect, and the beam transmission method in this aspect is explained from the side of the second communication device.
- the second communication device determines the first transmission resources of the S beam groups, and then receives the S beam groups according to the first transmission resources. Any beam group in the S beam groups is the first beam group.
- the first beam group includes L beams carrying one channel and/or signal.
- the L beams occupy N1 frequency domain resources, and each frequency domain resource corresponds to L /N1 time domain resources, S is a positive integer, L is a positive integer greater than or equal to 2, and N1 is a positive integer less than or equal to L.
- the time-frequency resources occupied by any one of the S beam groups received by the second communication device are time-frequency multiplexed or frequency-division multiplexed, which can support the second communication with different bandwidth requirements. device, thereby supporting the second communication device with large bandwidth to simultaneously complete reception of multiple beams on multiple frequency domain resources, thereby shortening the time for beam alignment.
- S is equal to 1
- N1 is a positive integer greater than or equal to 2. That is to say, when the second communication device only receives the first beam group, the L beams included in the first beam group occupy at least two frequency domain resources, so that the second communication device supporting large bandwidth can operate at least two frequency domain resources. By receiving the L beams on the resource, the reception of the L beams can be completed in a short time, which can shorten the beam alignment time.
- the time domain resources corresponding to the N1 frequency domain resources are the same; or, there are one or more offset values between the time domain resources corresponding to the N2 frequency domain resources among the N1 frequency domain resources ; N2 is less than or equal to N1.
- the second communication device can receive the L beams on relatively concentrated time domain resources, that is, complete the reception of the L beams in a relatively short period of time, and then can The time for beam alignment with the first communication device is shortened.
- the time domain resources corresponding to some of the N1 frequency domain resources may be different.
- the S beam groups are received according to a transmission period, and the transmission period includes a first period, or a first period and one or more second periods, and the second period is shorter than the first period.
- the first period is the transmission period of S beam groups
- the second period is the time interval for multiple transmissions of multiple beams in the first period.
- the first period can also refer to one beam group or multiple beams of S beam groups One transmission period per beam.
- the S beam groups are received according to a transmission period; the transmission period includes the first period. That is to say, the second communication device only receives the multiple beams according to the first period, so as to complete the reception of the multiple beams within a certain period of time.
- the S beam groups are received according to the transmission time or the candidate transmission time of the aperiodic transmission. That is to say, the second communication device can more flexibly receive S beam groups at the specified transmission time or certain candidate transmission times, which is not only beneficial to saving transmission resource overhead, but also enables the second communication device to receive the S beam groups in a short period of time. Complete the reception of the S beam groups.
- the transmission time or candidate transmission time of the aperiodic transmission may be indicated by the third communication device through signaling, that is, the third communication device passes The signaling informs the second communication device at which transmission time or which candidate transmission time to receive the S beam groups aperiodically.
- each beam group there is a shift relationship between beam numbers of beams in different time domains and/or beam numbers of beams in different frequency domains in the range of 0 to M-1;
- the beam numbers of the beam subgroups have a shift relationship within a range from 0 to M ⁇ 1; M is the number of beams in each beam group, and M is a positive integer.
- the beam numbers of beams in different time domains may refer to the beam numbers of beams occupying a frequency domain resource and different time domain resources corresponding to the frequency domain resources, or may refer to the beam numbers of beams occupying different time domain resources and corresponding to each time domain resource.
- the beam numbers of beams on multiple frequency domain resources; the beam numbers of beams on different frequency domains can refer to the beam numbers of beams occupying one time domain resource and different frequency domain resources corresponding to the time domain resource, or can refer to beams occupying different frequency domains resources and beam numbers of beams on multiple time domain resources corresponding to each frequency domain resource.
- the above-mentioned relationship of shifting may refer to a relationship of shifting or a relationship of cyclic shifting.
- beam numbers between different beam groups have a relationship of cyclic shift. That is to say, when the number of time domain resources or the number of frequency domain resources occupied by each beam group is the same, the beam number of the next beam group is numbered based on the relationship between the beam number of the current beam group and the cyclic shift.
- the second communication device may send feedback information, where the feedback information includes measurement results of signals and/or channels corresponding to the S beam groups. It can be seen that the second communication device can feed back the measurement results of the signals and/or channels corresponding to the S beam groups to the first communication device through the feedback information, so that the first communication device can determine the optimal beam according to the measurement results, that is, achieve the same as Beam alignment of the second telecommunications device.
- the signal and/or channel measurement results corresponding to the same beam or beams with the same beam number correspond to one feedback resource.
- this method can save the overhead of receiving feedback resources.
- the feedback information includes measurement results of signals and/or channels corresponding to S beam groups in the first period or in the second period; the first period or the second period is the above S The transmission period of the beam groups; or, the feedback information includes the measurement results of signals and/or channels corresponding to one or more beams in the S beam groups when the S beam groups are sent aperiodically.
- the feedback information can be the measurement results of signals and/or channels corresponding to the S beam groups in the first cycle or in the second cycle when L beams are periodically transmitted, or the feedback is aperiodic transmission of L beams , measurement results of signals and/or channels corresponding to one or more beams in the S beam groups.
- the feedback information includes measurement results of signals and/or channels corresponding to one or more beams whose measurement results are greater than the first threshold, that is, the feedback information feeds back signals and/or channels with better measurement results or channel measurement results, so that the first communication device can quickly determine the optimal beam from the obtained measurement results, and the time for beam alignment can be shortened.
- the feedback resources corresponding to the measurement results of one or more beams whose measurement results are greater than the first threshold are carried on one or more frequencies.
- the feedback resource corresponding to the signal and/or channel measurement result of one or more beams whose measurement result is greater than the first threshold is carried on one frequency, the feedback resource can be saved; when the measurement result is greater than one or more of the first threshold
- the measurement results fed back on each frequency domain are the measurement results of the signals and/or channels corresponding to the frequency, so that each feedback The information does not need to carry frequency information, which can reduce the signaling amount of the feedback information, thereby saving feedback resources.
- the feedback information indicates different frequency domain resources corresponding to signals and/or channels corresponding to beams having the same quasi-co-located QCL relationship. It can be seen that the feedback information can also indicate different frequency domain resources corresponding to beams with the same quasi-co-located QCL relationship, so as to facilitate the first communication device to follow up according to the different frequency domain resources corresponding to the beams with the same quasi-co-located QCL relationship.
- the transmission of different beams is configured on a large bandwidth, thereby avoiding the problem that the beam deviation cannot be detected when different frequencies correspond to different beams during large bandwidth communication, or the problem of incorrect beam selection.
- the L beams are beams in different directions, or beams with different quasi-co-located QCL relationships.
- the measurement result of the beam transmission of the first communication device in a certain direction on a frequency or time can be used as a reference for the measurement result of the beam transmission in the same direction on another frequency or time, so that Avoid sending beams in all directions on every frequency or time, thereby improving the efficiency of system resource usage.
- N1 frequency domain resources are carried on N1 carriers, or on N1 subbands of one carrier, or on N1 bandwidth parts BWP of one carrier, or on N1 subbands of more than one carrier , or more than N1 bandwidth parts BWP of one carrier.
- the N1 frequency domain resources can be carried on frequency domain resources of different bandwidths, so that the transmitted L beams support second communication devices with different bandwidth requirements to receive them.
- the time-frequency resources occupied by at least two beam groups in the S beam groups partially overlap, or the time-frequency resources occupied by the S1 beam group and the S2 beam group in the S beam groups
- the frequency resources overlap each other
- S1 is a positive integer smaller than S
- S2 is a positive integer smaller than S.
- the present application further provides a communication device.
- the communication device has part or all of the functions of the first communication device described in the first aspect, or part or all of the functions of the second communication device described in the second aspect above.
- the function of the communication device may have the functions of some or all embodiments of the first communication device described in the first aspect of the present application, and may also have the function of independently implementing any embodiment of the present application.
- the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
- the hardware or software includes one or more units or modules corresponding to the above functions.
- the structure of the communication device may include a processing unit and a communication unit, and the processing unit is configured to support the communication device to perform corresponding functions in the foregoing method.
- the communication unit is used to support communication between the communication device and other communication devices.
- the communication device may further include a storage unit, which is used to be coupled with the processing unit and the transceiver unit, and stores necessary program instructions and data of the communication device.
- the communication device includes:
- a processing unit configured to determine first transmission resources of S beam groups; any beam group in the S beam groups is a first beam group; and the first beam group includes L transmission resources carrying a channel and/or signal beams; the L beams occupy N1 frequency domain resources; each frequency domain resource corresponds to L/N1 time domain resources; S is a positive integer; L is a positive integer greater than or equal to 2; N1 is less than or equal to L a positive integer;
- a communication unit configured to send the S beam groups according to the first transmission resource.
- the communication device includes:
- a processing unit configured to determine first transmission resources of S beam groups; any beam group in the S beam groups is a first beam group; the first beam group includes L beams carrying a channel and/or signal; The L beams occupy N1 frequency domain resources; each frequency domain resource corresponds to L/N1 time domain resources; S is a positive integer; the L is a positive integer greater than or equal to 2; the N1 is less than or equal to the A positive integer of L;
- a communication unit configured to receive the S beam groups according to the first transmission resource.
- the transceiver unit may be a transceiver or a communication interface
- the storage unit may be a memory
- the processing unit may be a processor
- the communication device includes:
- a processor configured to determine first transmission resources of S beam groups; any beam group in the S beam groups is a first beam group; and the first beam group includes an L channel and/or signal bearing beams; the L beams occupy N1 frequency domain resources; each frequency domain resource corresponds to L/N1 time domain resources; S is a positive integer; L is a positive integer greater than or equal to 2; N1 is less than or equal to L a positive integer;
- a communication interface configured to send the S beam groups according to the first transmission resource.
- the communication device includes:
- a processor configured to determine first transmission resources of S beam groups; any beam group in the S beam groups is a first beam group; the first beam group includes L beams carrying a channel and/or signal; The L beams occupy N1 frequency domain resources; each frequency domain resource corresponds to L/N1 time domain resources; S is a positive integer; the L is a positive integer greater than or equal to 2; the N1 is less than or equal to the A positive integer of L;
- a communication interface configured to receive the S beam groups according to the first transmission resource.
- the communication device is a chip or a chip system.
- the processing unit may also be embodied as a processing circuit or a logic circuit; the transceiver unit may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
- the processor may be used to perform, for example but not limited to, baseband related processing
- the transceiver may be used to perform, for example but not limited to, radio frequency transceiving.
- the above-mentioned devices may be respectively arranged on independent chips, or at least partly or all of them may be arranged on the same chip.
- processors can be further divided into analog baseband processors and digital baseband processors.
- the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on an independent chip.
- a digital baseband processor can be integrated with various application processors (such as but not limited to graphics processors, multimedia processors, etc.) on the same chip.
- application processors such as but not limited to graphics processors, multimedia processors, etc.
- SoC System on a Chip
- the present application further provides a processor configured to execute the foregoing various methods.
- the process of sending the above information and receiving the above information in the above method can be understood as the process of outputting the above information by the processor and the process of receiving the input of the above information by the processor.
- the processor When outputting the above information, the processor outputs the above information to the transceiver for transmission by the transceiver. After the above information is output by the processor, other processing may be required before reaching the transceiver.
- the processor receives the above-mentioned input information
- the transceiver receives the above-mentioned information and inputs it to the processor. Furthermore, after the transceiver receives the above information, the above information may need to be processed before being input to the processor.
- sending S beam groups mentioned in the foregoing method may be understood as outputting S beam groups by the processor.
- the above-mentioned processor may be a processor dedicated to performing these methods, or may be a processor that executes computer instructions in a memory to perform these methods, such as a general-purpose processor.
- the above-mentioned memory can be a non-transitory (non-transitory) memory, such as a read-only memory (Read Only Memory, ROM), which can be integrated with the processor on the same chip, or can be respectively arranged on different chips.
- ROM read-only memory
- the embodiment does not limit the type of the memory and the arrangement of the memory and the processor.
- the present application further provides a communication system, which includes at least one first communication device and at least one second communication device according to the above aspect.
- the system may further include other devices that interact with the first communication device and the second communication device in the solutions provided in this application.
- the present application provides a computer-readable storage medium for storing instructions, and when the instructions are executed by a communication device, the method described in any one of the above-mentioned first aspect and the second aspect is implemented.
- the present application further provides a computer program product including instructions, which, when run on a communication device, cause the communication device to execute the method described in any one of the first aspect and the second aspect.
- the present application provides a chip system
- the chip system includes a processor and an interface, the interface is used to acquire programs or instructions, and the processor is used to call the programs or instructions to implement or support the first communication
- the device implements the functions involved in the first aspect, or is used to call the program or instruction to implement or support the second communication device to implement the functions involved in the second aspect. For example, at least one of the data and information involved in the above methods is determined or processed.
- the chip system further includes a memory, and the memory is configured to store necessary program instructions and data of the terminal.
- the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
- the present application provides a communication device, including a processor, configured to execute a computer program or an executable instruction stored in the memory, and when the computer program or the executable instruction is executed, the device executes the communication device described in the first aspect and Methods in various possible implementations of the first aspect.
- processor and memory are integrated;
- the above-mentioned memory is located outside the communication device.
- the present application provides a communication device, including a processor, configured to execute a computer program or an executable instruction stored in the memory, and when the computer program or the executable instruction is executed, the device executes the communication device described in the second aspect and Methods in various possible implementations of the second aspect.
- processor and memory are integrated;
- the above-mentioned memory is located outside the communication device.
- FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
- FIG. 2 is a schematic structural diagram of another communication system provided by an embodiment of the present application.
- FIG. 3 is a schematic diagram of the number of synchronization signal blocks corresponding to different subcarrier spacings provided by the embodiment of the present application;
- FIG. 4 is an interactive schematic diagram of a beam transmission method provided by an embodiment of the present application.
- FIG. 5 is a schematic diagram of the distribution of S beam groups provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of time-frequency domain distribution of multiple beams provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of another time-frequency domain distribution of multiple beams provided by an embodiment of the present application.
- FIG. 8a is a schematic diagram of time-frequency domain distribution of S beam groups provided by an embodiment of the present application.
- FIG. 8b is a schematic diagram of time-frequency domain distribution of another S beam group provided by the embodiment of the present application.
- FIG. 9a is a schematic diagram of the distribution of a beam transmission cycle provided by an embodiment of the present application.
- Fig. 9b is a schematic diagram of time-frequency domain distribution of another S beam group provided by the embodiment of the present application.
- FIG. 10 is a schematic diagram of time-frequency domain distribution of another S beam group provided by an embodiment of the present application.
- Fig. 11a is a schematic diagram of time-frequency domain distribution of a beam subgroup provided by an embodiment of the present application.
- Fig. 11b is a schematic diagram of time-frequency domain distribution of a beam subgroup provided by an embodiment of the present application.
- Fig. 11c is a schematic diagram of time-frequency domain distribution of another beam subgroup provided by the embodiment of the present application.
- FIG. 12 is a schematic diagram of time-frequency domain distribution of another S beam group provided by the embodiment of the present application.
- FIG. 13 is a schematic diagram of the distribution of another S beam group provided by the embodiment of the present application.
- FIG. 14 is a schematic diagram of time-frequency domain distribution of another S beam group provided by the embodiment of the present application.
- FIG. 15 is a schematic diagram of another time-frequency domain distribution of multiple beams provided by an embodiment of the present application.
- FIG. 16 is a schematic diagram of another time-frequency domain distribution of multiple beams provided by an embodiment of the present application.
- FIG. 17 is a schematic diagram of time-frequency domain distribution of another S beam group provided by the embodiment of the present application.
- FIG. 18 is a schematic diagram of time-frequency domain distribution of another S beam group provided by the embodiment of the present application.
- FIG. 19 is a schematic diagram of time-frequency domain distribution of another S beam group provided by an embodiment of the present application.
- FIG. 20 is an interactive schematic diagram of another beam transmission method provided by the embodiment of the present application.
- FIG. 21 is a schematic diagram of feedback information provided by an embodiment of the present application.
- Fig. 22 is a schematic diagram of feedback of another kind of feedback information provided by the embodiment of the present application.
- Fig. 23 is a schematic diagram of feedback of another kind of feedback information provided by the embodiment of the present application.
- Fig. 24 is a schematic diagram of feedback of another kind of feedback information provided by the embodiment of the present application.
- Fig. 25 is an interactive schematic diagram of another beam transmission method provided by the embodiment of the present application.
- Fig. 26 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
- Fig. 27 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
- FIG. 28 is a schematic structural diagram of a chip provided by an embodiment of the present application.
- FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
- the communication system may include but not limited to a network device and a terminal device.
- the number and form of devices shown in FIG. 1 are for example, and do not constitute a limitation to the embodiment of the present application. In practical applications, two or more network devices and two or more terminal devices may be included.
- the communication system shown in FIG. 1 is described by taking one network device 101 and one terminal device 102 , and the network device 101 can provide services for the terminal device 102 as an example.
- the network device 101 in FIG. 1 is an example of a base station
- the terminal device 102 is an example of a mobile phone.
- the embodiment of the present application is also applicable to the communication system shown in FIG. 2 .
- the communication system may include, but not limited to, two terminal devices 102.
- the terminal devices 102 include 1021 and 1022, and a communication connection may be established between the two terminal devices 102.
- the terminal devices 102 are mobile phones as examples.
- the first communication device in this embodiment of the present application may be a network device
- the second communication device may be a terminal device.
- the network device provides services for the terminal device.
- both the first communication device and the second communication device are terminal devices, and at this time, communication is performed between terminal devices.
- the embodiment of the present application does not limit the first communication device and the second communication device.
- the technical solutions of the embodiments of the present application can be applied to various communication systems.
- the fourth-generation mobile communication (4th-generation, 4G) system and the fifth-generation mobile communication (5th-generation, 5G) system and with the continuous development of communication technology
- the technical solution of the embodiment of the present application can also be used in the first Six-generation mobile communication (6th-generation, 6G) system and other subsequent evolved communication systems, etc.
- a network device is an entity on the network side for transmitting or receiving signals, and the network device may be a device with a wireless transceiver function or a chip that may be provided in the device.
- the network equipment includes but is not limited to: evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC) ), base transceiver station (base transceiver station, BTS), home network equipment (for example, home evolved Node B, or home Node B, HNB), wireless fidelity (wireless fidelity, WIFI) system in the access point (access point , AP), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc., can also be used in 4G, 5G or even 6G systems, such as new wireless ( gNB in the new radio, NR) system, or, transmission point (
- RNC radio
- the terminal device is an entity on the terminal side for receiving or transmitting signals, and the terminal device may be a device with a wireless transceiver function or a chip that may be provided in the device.
- Terminal equipment may also be referred to as user equipment (UE), terminal, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, user agent, or user device , can be applied to 4G, 5G or even 6G systems.
- the terminal in the embodiment of the present application may be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiver function, a wearable device, a drone, a virtual reality (virtual reality, VR) terminal, a device-to-device Terminals in (Device-to-Device, D2D), vehicles or on-board equipment in vehicle-to-everything (V2X), terminals in machine-to-machine (M2M) communication, things Terminals in Internet of Things, augmented reality (AR) terminals, wireless terminals in industrial control, wireless terminals in self driving, remote medical Wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, the aforementioned Wireless terminal type RSU and so on.
- VR virtual reality
- VR device-to-device Terminals in (Device-to-Device, D2D)
- V2X vehicle-to-everything
- M2M machine-to-machine
- AR
- Embodiments disclosed in the application will present various aspects, embodiments or features of the application around a system including a plurality of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. In addition, combinations of these schemes can also be used.
- the receiving end performs beam scanning on the synchronization signal block (SS block) to improve the coverage of each synchronization signal block.
- a plurality of synchronization signal blocks of different beams constitute a synchronization signal block burst set (burst set), and the synchronization signal block burst set is transmitted within a time window of 5 ms.
- the transmission period of SS block burst set can be configured as a value in ⁇ 5,10,20,40,80,160 ⁇ ms. Therefore, the minimum synchronization beam scanning period supported by 5G NR is 5ms.
- the transmitter and the receiver use a time division multiplex (TDM) based beam scanning method for beam alignment. As shown in Figure 3, different subcarrier spacings correspond to different maximum numbers of SS blocks in the SS burst set, that is, different maximum numbers of beams.
- TDM time division multiplex
- Different SS blocks perform time-division multiplexing transmission, that is, different SS blocks are transmitted on different time domain resources in the same frequency domain resource, so that the receiving end needs to scan all the beams in a long time, resulting in A longer beam alignment time is required, which in turn leads to a longer initial access time at the receiving end and the sending end.
- the phenomenon of beam squint will appear, that is, different frequencies may correspond to different beams within the same bandwidth range.
- the beam corresponding to the synchronization signal or reference signal frequency may not be able to reflect the beam transmission conditions at different frequencies within the entire system bandwidth, resulting in the failure of terminal equipment to detect effective beams or wrong beam selection , thereby increasing the access delay and reducing the capacity.
- the receiving end needs to know beams corresponding to different frequencies, so as to receive corresponding beams at corresponding frequencies.
- the beam scanning mechanism of 5G NR is in the multi-hop system.
- the intra-hop beam scanning is performed in TDM mode, and the synchronization block beam scanning between different hops also adopts the time division multiplexing method, the beam scanning of the multi-hop system will The scan alignment period is very long, which is not conducive to fast beam scan alignment, that is, not conducive to fast initial access and fast beam link discovery and network topology update.
- the application scenarios of the embodiments of the present application include communication scenarios with low latency and high reliability.
- application scenarios are factories, Internet of Vehicles, drones, etc., as well as enhanced mobile broadband communications and large-scale machine-type communications.
- the communication system can also be high-frequency spectrum, such as millimeter waves. Spectrum in beamforming-based communication technologies is required for terahertz and optical communications, among others.
- the beam in this embodiment of the present application refers to a beam carrying channel and/or signal transmission.
- the beam transmission described in the present invention may also be referred to as signal/candidate signal/channel transmission.
- beam transmission refers to candidate signal/channel transmission.
- the beam number or beam ID may also be referred to as an index of a candidate signal/channel.
- the resources in the communication system are divided into several carriers in terms of frequency.
- the communication system can also define subbands or bandwidth parts (bandwidth part, BWP) on the frequency domain resources based on the carrier, and the bandwidth of a subband/BWP is less than or equal to the bandwidth of a carrier. Therefore, the communication system may divide a carrier into Z subbands with the same or different bandwidths, or divide a carrier into Z BWPs with the same or different bandwidths.
- the communication system can also define a resource block (resource block, RB) in the time-frequency domain based on the carrier.
- One RB includes 12 subcarriers, and the above-mentioned one subband or one BWP can include multiple RBs.
- An embodiment of the present application provides a beam transmission method 100 .
- the first communication device determines first transmission resources of S beam groups, and then sends the S beam groups to the second communication device according to the first transmission resources.
- any beam group in the S beam groups is the first beam group, and the first beam group includes L beams carrying one channel and/or signal, and the L beams occupy N1 frequency domain resources, and each frequency domain resource
- S is a positive integer; L is a positive integer greater than or equal to 2, and L is divisible by N1, and N1 is a positive integer less than or equal to L.
- the time-frequency resources occupied by any one of the S beam groups sent by the first communication device are time-frequency multiplexed or frequency-division multiplexed, and can support second communication devices with different bandwidth requirements, which is conducive to supporting large bandwidth
- the second communication device simultaneously completes reception of multiple beams on multiple frequency domain resources, thereby helping to shorten the time for beam alignment.
- the second communication device may also feed back the measurement results of the signals and/or channels corresponding to the above S beam groups to the first communication device, so that the first communication device communicates with the second communication device based on the measurement results Perform beam alignment.
- the beam transmission method 200 refers to the beam transmission method 200 for details.
- the first communication device may also determine the second transmission resource of K beams to be sent to the fourth communication device according to the bandwidth capability supported by the fourth communication device, and send the K beams to the second communication device according to the second transmission resource.
- K is a positive integer greater than or equal to 2
- the second transmission resource occupies N3 frequency domain resources
- each of the N3 frequency domain resources corresponds to K/N3 time domain resources
- N3 is less than or equal to K
- K is divisible by N3. That is to say, the first communication device determines the second transmission resources of K beams according to the bandwidth capability supported by the fourth communication device, then the fourth communication device can quickly complete the transmission of the K beams based on the bandwidth capability supported by the device. The reception is beneficial to shorten the time for beam alignment with the first communication device.
- FIG. 4 is an interactive schematic diagram of the beam transmission method 100 .
- the beam transmission method 100 is described from the perspective of interaction between the first communication device and the second communication device.
- the beam transmission method 100 includes but not limited to the following steps:
- the first communication device determines first transmission resources of S beam groups; any beam group in the S beam groups is the first beam group, and the first beam group includes L beams carrying one channel and/or signal, L beams occupy N1 frequency domain resources, and each frequency domain resource corresponds to L/N1 time domain resources, S is a positive integer, L is a positive integer greater than or equal to 2, and N1 is a positive integer less than or equal to L.
- the first transmission resource may be configured by the first communication device, or may be predefined by the first communication device and the second communication device. Different beam groups occupy different time-frequency resources. L is a positive integer divisible by N1.
- the time domain resources may be one or more OFDM symbols.
- the channel and/or signal may be one or more of the following: synchronization signal, reference signal, discovery signal, broadcast channel, data channel, control channel.
- the discovery signal is a signal for link discovery between the first communication device and the second communication device.
- the time domain resource may be an OFDM symbol containing a synchronization signal, or an OFDM symbol containing both a synchronization signal and a broadcast channel and its reference signal, for example, a time domain resource is a synchronization signal block containing 4 OFDM symbols.
- each frequency domain resource can transmit a synchronization signal, or a signal including both a synchronization signal and a broadcast channel and its reference signal.
- a signal and/or channel beam transmission may also be a synchronization signal and/or data channel beam transmission.
- the first communication device has determined the first transmission resources of S beam groups, wherein any beam group includes L beams carrying one channel and/or signal, and L is the maximum number of beams or the number of configurable beams number.
- the first communication device configures N1 frequency domain resources in the frequency domain corresponding to each time domain resource, the N1 frequency domain resources are used for the transmission of the N1 beams, and each frequency domain resource configures L/N1 time domain resources are allocated, and the L/N1 time domain resources are used for transmission of L/N1 beams.
- L time-frequency resources composed of N1 frequency domain resources and L/N1 time domain resources on each frequency domain resource are used to transmit the L beams, that is, every adjacent L/N1 time domain resources
- the frequency domain resource on the domain resource can transmit L beams.
- the communication distance is relatively short, and the channels of the communication parties often appear as sparse scattering channels, such as line-of-sight communication in many cases. Therefore, in addition to the frequency resources of the same carrier, and different carriers in the same frequency band, even the propagation paths of different carriers in different frequency bands will be similar, so the multi-carrier beam scanning can be optimized. That is, the measurement result of beam transmission in a certain direction on one frequency or frequency band can be used as a reference for the measurement result of beam transmission in the same direction on another frequency or frequency band. It can also be said that they have the same or similar main energy beam directions, or that the signal transmissions of these frequencies or frequency bands have the same quasi co-location (QCL) relationship.
- QCL quasi co-location
- the QCL relationship usually includes ⁇ average delay, delay spread, Doppler offset, Doppler spread, spatial reception parameters ⁇ , and the network device usually defines the QCL relationship for two signal transmissions, such as the synchronization signal and the reference Signals define their QCL relationship.
- the definition of the QCL relationship facilitates the second communication device to simplify the transmission and reception of another signal based on the transmission and reception of another signal.
- the transmission of the synchronization signal and the reference signal has a QCL relationship with respect to the spatial reception parameter, that is, the synchronization signal and the reference signal have the same QCL type D, which means that the second communication device uses the same spatial reception parameter to receive the synchronization signal and the reference signal, such as The second communication device uses the same spatial receiving angle to receive the synchronization signal and the reference signal.
- the sending device sends a beam marked as 1 in beam direction 1 of carrier 1, and sends a beam marked as 2 in direction 2 of beam carrier 2, and the second communication device uses Matching its own beam, measuring the beam direction 2 of carrier 2, the measurement result of beam 2 is higher than the specified threshold, while the beam direction 1 of carrier 1, beam 1 is lower than the specified threshold, the first communication device according to the measurement result fed back by the second communication device, Determine the direction of beam 2 as the beam direction with better channel reception quality, and apply it on carrier 1.
- carrier 1 does not need to scan and transmit in all beam directions, but can use the beam transmission of other carriers to measure beam quality in different directions, so as to determine the effective beam transmission direction of this carrier, thereby reducing delay and improving system resource usage efficiency.
- the L beams transmitted by each adjacent L/N1 time-domain resources are beams in different directions, that is, the L beams sent by the first communication device are one channel and/or signal Beams in different directions, so that the carrier or frequency band carrying the beam can traverse the beams in different directions.
- beam group #0-beam group #3 each include 8 beams, and the 8 beams in each beam group are beams in 8 directions on a channel and/or signal.
- the L beams transmitted by every adjacent L/N1 time domain resources are beams with different QCL relationships.
- S is equal to 1
- N1 is a positive integer greater than or equal to 2. That is to say, when the first communication device only determines the first transmission resource of one beam group, the L beams included in the beam group occupy at least two frequency domain resources instead of only occupying one frequency domain resource, so that It is beneficial for the second communication device supporting a large bandwidth to quickly complete the reception of L beams in different time domain resources and frequency domain resources, thereby helping to shorten the time for aligning the beams with the first communication device.
- each beam group sent by the first communication device is L beams of a channel or signal , but the L beams corresponding to different beam groups still occupy different time-frequency resources.
- each beam group sent by the first communication device may be a different channel or signal.
- beam groups include beam group #0, beam group #1, and beam group #2.
- Beam group #0 includes L1 beams
- beam group #1 includes L2 beams
- beam group #2 includes L3 beams.
- the N1 frequency domain resources occupied by the above L beams can be carried on N1 carriers, that is, one frequency domain resource is carried on one carrier , or N1 frequency domain resources may be carried on N1 subbands greater than one carrier, or N1 BWPs greater than one carrier.
- the above-mentioned N1 frequency domain resources can be carried on one carrier, that is, the N1 frequency domain resources can be carried on N1 sub-bands of one carrier. Or, N1 frequency domain resources are carried on N1 BWPs of one carrier.
- the first communication device may determine the size of the frequency domain resources occupied by the N1 frequency domain resources according to the maximum bandwidth capability supported by the second communication device, so that the second communication device can use the maximum bandwidth supported by the second communication device Receiving L beams within the capability range is conducive to quickly completing the reception of L beams.
- the transmission resources of the first beam group occupy one frequency domain resource and L time domain resources, that is, the transmission resources of the L beams in the first beam group are located at Same frequency domain but different time domain. That is to say, L time domain resources on one frequency domain resource are used to transmit L beams carrying one channel and/or signal.
- the second communication device that only supports narrow bandwidth can complete reception of L beams on L time domain resources of one frequency domain resource in a time division multiplexing manner.
- the time domain resources corresponding to the N1 frequency domain resources are the same. That is to say, the N1 frequency-domain resources occupied by the L beams are on the same time-domain resource, which is beneficial for the first communication device to perform transmission of the L beams on the concentrated time-frequency resources, thereby benefiting the second communication device Completing the receiving of the L beams in a short time is beneficial to reducing the time for beam alignment with the first communication device.
- the first beam group includes 8 beams, that is, L is equal to 8.
- the first communication device determines the first transmission resource of the first beam group, as shown in FIG. 6 , the 8 beams occupy 4 frequency domain resources, that is, N1 is equal to 4. It can be seen that the 4 frequency domain resources occupied by the 8 beams are f0-f3, and the 2 time domain resources occupied by each frequency domain resource are both t0 and t1, that is, the time domain resources corresponding to each frequency domain resource are the same , so that the second communication device supporting f0-f3 can complete scanning of the L beams at t1, which can shorten the beam alignment time of the second communication device and the first communication device.
- the offset value may be configured by the first communication device, or may be predefined by the first communication device and the second communication device. That is to say, part of the frequency domain resources in the N1 frequency domain resources are on different time domain resources, which can reduce the requirement of the first communication device to transmit multiple beams on the same time domain resource, or can reduce the requirement of the second communication device to transmit multiple beams on the same time domain resource. Requirement to receive multiple beams on the same time domain resource.
- the first beam group includes 8 beams, that is, L is equal to 8, and the first transmission resource of the first beam group is shown in FIG. 7 .
- the 8 beams occupy 4 frequency domain resources as f0-f3, that is, N1 is equal to 4, and frequency domain resources f0 and f1 both occupy time domain resources t0 and t1, and frequency domain resources f2 and f3 both occupy time domain resources t2 and t3, every two frequency domain resources of the four frequency domain resources correspond to different time domain resources, that is, there is an offset between the time domain resources corresponding to the frequency domain resources f0, f1 and frequency domain resources f2, f3, the offset is 2 time domain resources.
- the first beam group shown in FIG. 7 is suitable for a first communication device/second communication device that supports sending/receiving two beams on the same time domain resource.
- the time-frequency resources occupied by at least two beam groups in the S beam groups partially overlap, or the S1 beam groups and the S2 beam groups in the S beam groups
- the time-frequency resources occupied by the beam groups overlap each other
- S1 is a positive integer smaller than S
- S2 is a positive integer smaller than S.
- the beam groups in the S1 beam groups and the beam groups in the S2 beam groups are different from each other. This method is beneficial to transmit S beam groups on part or all of the same time-frequency resources, which is beneficial to save resource overhead, and is beneficial to the second communication device that takes into account both high and low bandwidth requirements, thereby increasing the beam scanning speed.
- the first transmission resources of beam group #0 and beam group #1 are shown in Figure 8a.
- Both beam group #0 and beam group #1 include 8 beams, and the 8 beams included in beam group #0 occupy the frequency resource f0 -f3 and time-domain resources t0 and t1, the eight beams included in beam group #1 occupy frequency resources f0 and f1 and time-domain resources t0-t3, that is, the time-frequency resources occupied by beam group #0 and beam group #1 are at time Domain resources t0, t1 and frequency domain resources f0, f1 are overlapping.
- the first transmission resources of beam group #0-beam group #7 included in the S beam groups are as shown in FIG. 10 .
- Each beam group in beam group #0-beam group #3 (S1 beam groups) occupies 2 time domain resources and 4 frequency domain resources, for example, beam group #0 occupies time domain resources t0 and t1, and Occupies frequency domain resources f0-f3;
- beam group #4-beam group #7 (S2 beam groups) both occupy 8 time domain resources and 1 frequency domain resource, for example, beam group #4 occupies time domain resources t0-t7 , and occupy the frequency domain resource f0. It can be seen from FIG. 10 that the time-frequency resources occupied by beam group #0-beam group #3 and beam group #4-beam group #7 overlap each other.
- This embodiment is applicable to support when the first communication device or the second communication device with different bandwidth requirements transmits different beam groups, and some or all resources corresponding to different beam groups overlap.
- the time-frequency resources occupied by the S beam groups are mutually orthogonal, which means that the time-frequency resources occupied by the S beam groups do not overlap each other.
- the first transmission resources of beam group #0-beam group #7 included in the S beam groups are as shown in FIG. 10 .
- Beam group #0 occupies time domain resources t0 and t1
- frequency domain resources f0-f3
- beam group #1 occupies time domain resources t2 and t3
- frequency domain resources f0-f3 It can be seen from FIG. 10 that the time-frequency resources occupied by beam group #0 and beam group #1 are mutually orthogonal.
- the first communication device sends S beam groups according to the first transmission resource.
- the first communication device respectively transmits the corresponding beam group to the second communication device, so as to realize the transmission of the S beam groups.
- the foregoing S beam groups are sent according to a transmission cycle, that is, the first communication device periodically sends the S beam groups according to a transmission cycle and a first transmission resource.
- the transmission cycle may be configured by the first communication device, or may be predefined by the first communication device and the second communication device.
- the transmission period may be configured together with the above-mentioned first transmission resource, that is, the transmission period and the first transmission resource are configured in the same configuration information by the first communication device; optional Yes, the transmission period may also be configured separately, that is, the transmission period and the first transmission resource are configured in different configuration information by the first communication device.
- the foregoing transmission period includes a first period, or the first period and a default period.
- the default period refers to the period when S beam groups are initially sent or there is no configuration update.
- the foregoing transmission period includes a first period and a second period, and the second period is shorter than the first period. That is, the S beam groups are sent based on biperiod.
- the first period can be regarded as a long period, which is the period of transmission of S beam groups; the second period can be regarded as a short period, and the short period is that multiple beams in the S beam groups are transmitted multiple times in the first period.
- the transmission time interval, the first period may also refer to a beam group or a transmission period of each beam in multiple beams of S beam groups.
- the first beam group includes 8 beams
- the transmission period of the 8 beams includes the first period T1 and the second period T0, and T0 is smaller than T1.
- the 8 beams in the 4 beam groups are at T0
- the transmission is performed once every interval T0 time domain resources within the time domain resources, and the 4 beam groups are transmitted once every interval T1 time domain resources.
- the first period may also refer to a beam group or a transmission period of each beam in multiple beams of S beam groups.
- the first period refers to the beam group occupying time domain resources t0 and frequency domain resources f0-f7 in Figure 11a, the beam group occupying time domain resources t0-t1 and frequency domain resources f0-f3, and the beam group occupying time domain resources t0- t3 and frequency domain resources f0-f1, the transmission period of each beam in the beam group occupying time domain resources t0-t7 and frequency domain resource f0.
- the transmission cycle includes a first cycle and multiple second cycles, the second cycle is smaller than the first cycle, and the value of each second cycle is different. That is to say, the S beam groups are transmitted based on multi-period.
- the transmission period includes one first period and two second periods.
- the first period can be regarded as a long period, which is the period of multiple transmissions of S beam groups; the two second periods can be regarded as short periods, and each second period corresponds to the period of multiple transmissions of L beams in a long period. time interval.
- the first communication device may configure dual periods of multiple beams for one or more second communication devices; it may also configure different dual periods of multiple beams for multiple second communication devices.
- the first communication device may configure double cycles for multiple beams with the same number of time domain resources or frequency domain resources, and for multiple beams with different numbers of time domain resources or frequency domain resources Configure multiple cycles. That is to say, multiple beams with the same number of time-domain resources or frequency-domain resources have only one second period, while multiple beams with different numbers of time-domain resources or frequency-domain resources have different second periods, which The transmission intervals of different beam groups may be different. For example, as shown in FIG. 9a , the four beam groups have the same number of time domain resources and frequency domain resources, then the second period of each beam group is the same.
- beam group #0 occupying time domain resources t0-t3 and frequency domain resources f0 and f2
- beam group #1 occupying time domain resources t0-t7 and frequency domain resources f0, they occupy The number of time-domain resources and the number of frequency-domain resources are different, then the first communication device can configure different second cycles for beam group #0 and beam group #1, for example, the first communication device configures beam group #0
- the second period is 4 time domain resources
- beam group #1 is configured with 8 time domain resources in the second period.
- resources in the time domain and/or frequency domain may partially or completely overlap.
- the time-frequency resources occupied by at least two beam groups in the S beam groups in the first cycle partially overlap, or S1 beam groups in the S beam groups overlap with The time-frequency resources occupied by the S2 beam groups overlap each other.
- the first period is a value greater than or equal to t0+t1+t2+t3, then when the first communication device transmits beam group #0 and beam group #1 within t0-t3, its beam group The time-frequency resources occupied by #0 and beam group #1 partially overlap.
- the S beam groups are sent according to the transmission time or the candidate transmission time of the aperiodic transmission.
- the aperiodic transmission time refers to the determined aperiodic transmission time of the S beam groups, that is, on which time domain resource the S beam groups are transmitted. If the first communication device sends S beam groups according to the transmission time of the aperiodic transmission, the first communication device sends S beam groups at the transmission time.
- the candidate transmission time of the aperiodic transmission refers to the candidate transmission time of the aperiodic transmission of one or more beams, that is, on which time domain resources the first communication device can transmit the S beam groups.
- the first communication device may select some candidate times in the candidate transmission time to send S beam groups, that is, those not in the candidate transmission time S beam groups are sent at all times.
- the second communication device is not sure at which candidate time the first communication device sends S beam groups. Therefore, the first communication device uses blind detection to receive S beam groups. beam groups.
- the transmission time or candidate transmission time of the aperiodic transmission is the start time of periodic transmission of S beam groups, that is, the transmission of aperiodic transmission of S beam groups can still fall within the interval of periodic transmission of S beam groups, That is, the first communication device may send the S beam groups aperiodically during the interval of periodically sending the S beam groups. For example, if the first communication device sends S beam groups every 5s, then the first communication device may also send S beam groups once within the 5s.
- the transmission time or candidate transmission time of aperiodic transmission is the time after the start time of periodic transmission of S beam groups offset by the first value, that is, the candidate transmission time of S beam groups for aperiodic transmission is different from the configured periodic transmission
- the period is the same, but there is a time offset, and the offset can be configured by the first communication device through signaling.
- the transmission time or candidate transmission time of the aperiodic transmission is the time indicated by the third communication device, for example, the third communication device sends a signaling to the first communication device, and the signaling is used to trigger beams of S beam groups
- the aperiodic transmission and may also directly or implicitly indicate the transmission time or candidate transmission time of the aperiodic transmission of the S beam groups. Therefore, when the first communication device sends S beam groups aperiodically according to the time indicated by the third communication device, the beam alignment time of the first communication device and the second communication device in the multi-hop system can be shortened.
- the third communication device may be a device that assists the first communication device to communicate with the second communication device, that is, a cooperation node that cooperates with the first communication device and the second communication device.
- the third communication device may be a relay node between the first communication device and the second communication device, the first communication device transmits information to the relay node, and the relay node then transmits the information to the second communication device, thereby Communication between the first communication device and the second communication device is achieved.
- the first communication device transmits the S beam groups aperiodically, the time-frequency resources occupied by at least two of the S beam groups in the aperiodic transmission partially overlap, or the S1 beam group and the S2 beam group among the S beam groups
- the time-frequency resources occupied by the groups overlap each other.
- the first communication device aperiodically transmits beam group #0 and beam group #1 and starts to transmit beam group #0 and beam group #1 on the time domain resource of t0, and its beam group #0 and beam group #1
- the time-frequency resources occupied by beam group #1 partially overlap.
- the multi-beam transmission of synchronization signals is transmitted periodically.
- the period is small, it is beneficial for the second communication device to maintain synchronization with the first communication device at all times, but due to the continuous transmission of S beam groups in a short period of time, it will cause a large resource consumption; and when the period is large, although it can save Resource overhead, but this method will increase the synchronization duration of the second communication device. Therefore, the way that the first communication device transmits the S beam groups according to the non-periodic transmission time or the candidate transmission time can alleviate the above-mentioned problem of long synchronization time of the S beam groups transmitted in a relatively large period, and the problem of long synchronization time of the S beam groups transmitted in a short period.
- the resource overhead of each beam group is large.
- the first communication device may also send S beam groups aperiodically at a certain time according to needs, or send S beam groups aperiodically at a time that does not conflict with the sending time of other channels and/or signals.
- S The aperiodic transmission of each beam group has more flexibility, which can shorten the beam alignment time.
- the first communication device aperiodically sends S beam groups together with the data channel.
- the second communication device determines first transmission resources of the S beam groups.
- the second communication device receives the S beam groups according to the first transmission resource.
- the embodiment of the present application does not limit the execution order of S103, S101, and S102. That is, S103 can be performed before S101 and S102, or S103 can be performed after S101 and before S102.
- the network device needs to perform a beam number on each beam, so that each beam corresponds to a beam number.
- various implementations of beam numbering within each beam group and between beam groups are described below:
- each beam group there is a shift relationship between beam numbers of beams in different time domains and/or beam numbers of beams in different frequency domains in the range of 0 to M-1, M is the number of beams in each beam group.
- the beam numbers of beams in different time domains may refer to the beam numbers of beams occupying a frequency domain resource and different time domain resources corresponding to the frequency domain resources, or may refer to the beam numbers of beams occupying different time domain resources and corresponding to each time domain resource.
- the beam numbers of beams on multiple frequency domain resources; the beam numbers of beams on different frequency domains can refer to the beam numbers of beams occupying one time domain resource and different frequency domain resources corresponding to the time domain resource, or can refer to beams occupying different frequency domains resources and beam numbers of beams on multiple time domain resources corresponding to each frequency domain resource.
- the beam numbers of the two beams of beam group #1 on the frequency domain resource f0 have a shift relationship
- the beam numbers of the beam group #1 on the time domain resource t2 and the frequency domain resources f0-f3 have a shift relationship with the beam numbers of the 4 beams on the time domain resource t3 and the frequency domain resources f0-f3.
- the beam numbers of the 4 beams of beam group #1 on the time domain resource t2 have a shift relationship
- the beam numbers of the 2 beams of beam group #1 on the frequency domain resource f0 and The beam numbers of the two beams on the frequency domain resource f1 have a shift relationship.
- the relationship of shifting may refer to the relationship of cyclic shifting in addition to the relationship of shifting described above in FIG. 10 . That is to say, when the beam number of the current beam in a beam group is equal to the number of beams in the beam group minus 1, the beam number of the next beam is numbered by cyclically shifting the beam number of the current beam.
- the beam numbers of the beams occupying time domain resource t4 and frequency domain resource f2 are relative to those occupying time domain resource t3 and frequency domain resource t3.
- the beam numbers of the beams on the domain resource f2 have a cyclic shift relationship.
- the beam numbers in each beam group can be numbered in the order of the time domain first and then the frequency domain or the frequency domain first and then the time domain to obtain the beam numbers of beams in different time domains and/or the beam numbers of beams in different frequency domains It has a shift relationship in the range of 0 to k-1. That is, for each beam group, first number the beams on different time domain resources on a frequency domain resource in the beam group, and then sequentially number the beams on different time domain resources on different frequency domain resources in the beam group or first number the beams on different frequency domain resources on one time domain resource in the beam group, and then sequentially number the beams on different time domain resources on different frequency domain resources in the beam group. That is to say, for each beam group, the beam numbers of its beams have a sequence relationship of the time domain first and then the frequency domain, or have a sequence relationship of the frequency domain first and then the time domain.
- each beam group includes L beams, and the beam numbers in each beam group are cyclically selected in the range of 0 to L-1, and different beam numbers represent beams in different directions or have Beams with different QCL relationships.
- the first transmission resources of the S beam groups determined by the first communication device are shown in FIG. 10.
- the S beam groups include beam group #0, beam group #1, beam group #2, and beam group #3.
- the beam group #0, beam group #1, beam group #2, and beam group #3 each include 8 beams. It can be seen from FIG. 10 that the beam numbers in each beam group range from 0 to 7, and are numbered in the order of the time domain first and then the frequency domain.
- the beam numbering in each beam group is implemented according to the time domain and then the frequency domain, which can make the beam group more likely to be backward compatible, that is, compatible with the synchronous access of the UE of the current or previous system, Especially for beam groups with only time-division multiplexing (that is, beam groups that occupy one frequency domain resource and multiple time domain resources), for example, the current 6G system is compatible with the simultaneous access of UEs that support 5G.
- the beam numbers of the beam group are numbered in sequence in the frequency domain, that is, on multiple frequency domain resources corresponding to one time domain resource, multiple beams are numbered in sequence in the frequency domain.
- the beam numbers in each beam group can be numbered according to the beam numbers of the beam subgroups, and the beam numbers of the beam subgroups have shifts in the range of 0 to M-1. relation.
- the beam subgroup may be L/N1 time domain units corresponding to one frequency unit or N1 frequency units corresponding to one time domain unit. That is to say, there is a shift relationship between the beam numbers of the beam subgroups in each beam group in the time domain or the frequency domain.
- the beam subgroup is beam group #4 occupying time domain resources t0-t7 and frequency domain resource f0, then the beam numbers of beam group #5-beam group #7 are the same as those of beam group #4 The beam numbers have a shift relationship.
- the beam subgroups may also be overlapping parts of different beam groups.
- the beam subgroup is the beam group occupying the shaded resources in Figure 11a, that is, the beam group occupying time domain resources t0-t7 and frequency domain resources f0, occupying time domain resources t0-t3, and occupying frequency domain resources f0 and the overlapping portion of the beamgroup of f1.
- the beam subgroup is the beam group occupying the shaded part in Figure 11b, that is, the beam group occupying time domain resources t0 and t1, and frequency domain resources f0-f3 and occupying time domain resources t0, and frequency domain resources f0- The overlapping portion of the beamgroups for f7.
- the beam subgroup is the beam group occupying the shaded part in Figure 11c, that is, the beam group occupying time domain resources t0-t3, and frequency domain resources f0, f1 and occupying time domain resources t0, t1, and frequency domain resources The overlapping portion of the beamgroups f0-f3.
- the beam number in each beam group is determined according to the reference beam group, and the reference beam group is a beam group composed of L beams on one frequency domain resource among the N1 frequency domain resources .
- the first communication device may determine L beams transmitted on one frequency as the reference beam group, and the beam number thereof is the reference beam number. That is to say, the reference beam group includes L beams transmitted by L time domain resources in one frequency domain. In this way, the numbers of the beams on other frequencies may have an offset relative to the reference frequency. That is to say, the beam number in each beam group has an offset value relative to the beam number of the reference beam.
- the reference beam group determined by the first communication device is 8 beams occupying the frequency domain resource f0 and the time domain resources t0-t7, and the beam numbers of the 8 beams are 0 to 7.
- the beam number of each of the 7 beams on the frequency domain resource f1 is offset by 2 relative to the beam number in the reference beam group on f0
- the beam number of each of the 7 beams on the frequency domain resource f2 The number of beams in the reference beam group on f0 is offset by 4, and the beam number of each of the 7 beams on frequency domain resource f3 is offset by 6 relative to the number of beams in the reference beam group on f0.
- the aforementioned reference beam group is a beam group composed of S beams on more than one frequency domain resource and less than N1 frequency domain resources.
- the reference beam group is beam group #0 in Figure 10
- the beam number of beam group #1 is numbered with reference to the beam number of beam group #0, for example, beam group #1 corresponds to different
- the beam number on the frequency domain resource is offset by 2 relative to the beam number on the time domain resource t0 of the beam group #0.
- the numbers of the L/N1 beams corresponding to each frequency domain resource are cyclically selected from the range of 0 to L-1 according to the time sequence, that is, every The beam numbers of the L/N1 beams corresponding to the frequency domain resources have a circular relationship in the range from 0 to L-1.
- the beam number sequence on the time-domain resource of length L/N1 corresponding to N1 frequency resources is an orthogonal subset ranging from 0 to L-1, or the time-domain resource of length L/N1 corresponding to N1 frequency resources
- the numbers of the beam sequences above are different from each other or complement each other within the number range from 0 to L-1.
- beam numbers on different time domain resources of the same frequency resource may be part or all of the range from 0 to L-1.
- Different frequency resources may correspond to different beam numbers on the same starting time domain resource.
- the first beam group is beam group #0
- the numbering of the two beams on each frequency domain resource of beam group #0 is cyclically selected from the range of 0 to 7 in time order .
- the beam numbers of the N1 beams corresponding to each time-domain resource are numbered at equal intervals in the range from 0 to L-1 in the order of the frequency domain, that is, each Beam numbers of the N1 beams corresponding to the time-domain resources have a circular relationship within a range from 0 to L-1.
- the numbering sequence of beams on N1 frequency domain resources corresponding to different time domain resources is an orthogonal subset in the range of 0 to L-1, or the beam numbers corresponding to L/N1 time domain resources are different from each other or between 0 and L Numbers in the range of -1 complement each other. That is to say, numbers of beams carried by different frequency domain resources on the same time domain resource are continuous or equally spaced.
- the beam numbers of the frequency domain resources on the time domain resource t0 are 0, 2, 4, 6, and the beam numbers of the frequency domain resources on the time domain resource t1 are 1 , 3, 5, 7, that is, each time domain resource corresponds to beam numbers of 4 frequency domain resources, which are numbered at equal intervals with an interval of 2.
- the beam numbers corresponding to the overlapping parts of the time-frequency resources of different beam groups are the same, and the beam numbers corresponding to the non-overlapping parts of the time-frequency resources are the overlapping parts Complementary cyclic shift of beam numbers in the range of 0 to L-1. For example, as shown in FIG. 8a, the beam numbers of the non-overlapping parts in beam group #0 and beam group #1 in FIG. 8a are cyclically shifted by 4 numbers for the overlapping parts.
- the beam number of beam group #0 in Figure 8a is time domain first and then frequency domain, and the beam number of beam group #1 is to first number the time domain and then the frequency domain in beam subgroup #1 (number 0-3) , according to the sequence, beam subgroup #2 (number 4-7) is numbered first in the time domain and then in the frequency domain.
- the beam group #0 may also be called a reference beam group, and at this time, the beam group #1 is the reference beam group #0 for complementary numbering.
- the first communication device when the time-frequency resources occupied by the S beam groups partially overlap, notifies the second communication device of the beam numbering method of each group through signaling or predefines the beam according to the time-frequency resources Numbering. For example, the time-frequency resources occupied by beam group #0 and beam group #1 partially overlap, and the first communication device notifies the second communication device of the beam numbers of beam group #0 and beam group #1 through signaling, as shown in Figure 8b , that is, first number the beam group #1 in the order of the time domain and then the frequency domain, and then number the beams of the non-overlapping part of the beam group #0 according to the beam number of the overlapping time-frequency resource part.
- the numbering rule is Shift two values on overlapping beams.
- the number of time-domain resources or frequency-domain resources of each beam group is the same, but the time-frequency positions of each beam group are different.
- the four beam groups are respectively beam group #0, beam group #1, beam group #2, and beam group #3, and Figure 13 shows the beams corresponding to each beam group in the four beam groups direction.
- Beam group #0 occupies time domain resources of t0-t1 and frequency domain resources of f0-f3; beam group #1 occupies time domain resources of t2-t3 and frequency domain resources of f0-f3; beam group #2 occupies t4 - the time domain resources of t5, and the frequency domain resources of f0-f3; the beam group #3 occupies the time domain resources of t6-t7, and the frequency domain resources of f0-f3. It can be seen that the number of time domain resources in each beam group is 2, and the number of frequency domain resources in each beam group is 4.
- the numbering in the beam group may refer to the above-mentioned numbering manner, that is, the beams in each beam group are numbered in the time domain first and then in the frequency domain.
- the beams in the beam group may be numbered in the order of the frequency domain first and then the time domain.
- Different beam groups are numbered in a manner of cyclic shifting according to the order of resources, that is, beam numbers between different beam groups have a cyclic shift relationship. It is understandable that beam numbers between different beam groups have a cyclic shift relationship, in particular, beam numbers on time domain resources and/or beam numbers on frequency domain resources all have a cyclic shift relationship.
- the beam numbers in each beam group can be divided into different frequency domains at the same time and at equal intervals according to ⁇ 2n ⁇ or ⁇ 2n+1 ⁇ are cyclically numbered in the range 0 to L-1. Between each beam group, starting from the start time t0, according to the same frequency and different time domains, cyclic numbering is performed in the range of 0 to L-1 according to ⁇ 2n, 2n+1 ⁇ .
- the group numbers of each beam group can be in the order of time domain or frequency domain (namely, time domain first, frequency domain first, frequency domain first, time domain first), and each group of L beams is numbered in the range of 0 to N-1.
- the beam numbers in each beam group are numbered in the order of the time domain and then the frequency domain, and the beam number of beam group #1 is cyclically shifted on the beam number of beam group #0 Numbered, the beam number of beam group #2 is cyclically shifted from the beam number of beam group #1, and the beam number of beam group #3 is cyclically shifted from the beam number of beam group #2 .
- the number of time domain resources or frequency domain resources of each beam group is different.
- beam groups include beam group #0 and beam group #1, and beam group #0 occupies time domain resources t0-t7 and frequency domain resource f0.
- Beam group #1 occupies time domain resources t0-t3 and frequency domain resources f0 and f2.
- the first communication device may respectively define time-frequency resources in different beam groups and beam numbers corresponding to the time-frequency resources.
- the beam group can be divided into subgroups, and the beam subgroups are as described above.
- each beam subgroup the beams may be numbered in the order of the time domain first and then the frequency domain, or the beams may be numbered in the order of the frequency domain first and then the time domain.
- the beam numbers are cyclically shifted between different beam subgroups.
- Each beam group can be group numbered according to time domain or frequency sequence (for example, frequency first and then time domain, or first time domain and then frequency).
- beam group #1 in Figure 14 includes beam subgroup #0 and beam subgroup #1
- beam subgroup #0 is a beam subgroup that occupies time domain resources t0 ⁇ t3 and frequency domain resource f0
- beam subgroup # 1 is a beam subgroup occupying time domain resources t0-t3 and frequency domain resource f2. It can be seen that the beam subgroup #0 and the beam subgroup #1 are respectively numbered according to the sequence in the time domain, and the beam numbers between the beam subgroup #0 and the beam subgroup #1 have a cyclic shift relationship.
- second communication devices supporting different bandwidths can receive beams in different time domain resources.
- the second communication device #1 is a second communication device with narrowband requirements or capabilities of bandwidth type 1
- its beam group corresponds to a time-frequency resource of frequency f0
- time-domain resources of t0-t7 It completes complete L beam scanning transmissions at frequency f0 and time range t0-t7.
- the second communication device #2 is a second communication device corresponding to the bandwidth requirement of bandwidth type 2 or slightly stronger capability
- the beam group corresponds to frequencies f0 and f2
- the time domain resources are t0-t3 and t4-t7. It completes 2 complete beam scans at time t0-t7.
- a beam group when the beams transmitted by each frequency resource in the N1 frequency resources occupy different time domain resources, or partially occupy the same time domain resources, a beam group can be divided according to the first time domain and then the frequency domain , and the beam numbers can also be performed in the order of the frequency domain first and then the time domain.
- the beam numbers in the first beam group are numbered in the range of 0 to 7 in the order of the time domain first and then the frequency domain.
- the beam numbers in the first beam group are numbered in the range of 0 to 7 in the order of the frequency domain first and then the time domain.
- the numbering of the beams may be the same as the above embodiment, and the multiple beams are numbered in the order of the time domain first and then the frequency domain.
- Beam groups with the same number of time-domain or frequency-domain resources have the characteristic of cyclic shift when the beams are numbered according to the order of resources.
- two beam groups include beam group #0 and beam group #1, beam numbers 0 to 7 on the frequency domain resource f0 form beam group #0, and beam numbers 4 to 7 on the frequency domain resource f2 3 constitute beam group #1.
- the time-frequency resources of the two beam groups have an offset value of 2 in the start time, and the beam numbers of the two beam groups have a cyclic shift relationship.
- the two beam groups can support the second communication device with lower bandwidth requirement to receive beams.
- beam group #0 and beam group #1 are suitable for the second communication device supporting two frequency domain resources to receive the two beam groups.
- only one beam is transmitted on one time domain resource, which is applicable to the second communication device with poor transceiving capability.
- the four beam groups determined by the first communication device are respectively beam group #0, beam group #1, beam group #2, and beam group #3.
- Beam group #0 occupies time domain resources t0-t3 and frequency domain resources f0-f3, and the time domain resources on t0 and t1 only occupy frequency domain resources f0 and f1, and the time domain resources on t2 and t3 only occupy frequency domain resources Resources f2 and f3; similarly, for beam group #1, beam group #2, and beam group #3, every two time domain resources only occupy two frequency domain resources.
- This embodiment is suitable for a second communication device that supports a large bandwidth but has poor ability to receive multiple beams on the same time domain resource.
- the two beam groups determined by the first communication device are respectively beam group #0 and beam group #1.
- Beam group #0 occupies frequency domain resources f0 and f2, and occupies time domain resources t0, t1, t4, t5 and t2, t3, t6, t7 respectively;
- beam group #1 occupies frequency domain resources f0 and f2, and occupies time domain resources respectively Domain resources t8, t9, t12, t13 and t10, t11, t14, t15.
- the start time of the beams corresponding to the internal frequency domain resources of the two beam groups has an offset value, and the offset value is 2, and the beams are numbered according to the time domain and then the frequency domain.
- beam numbers have a relationship of cyclic shift.
- the beam numbers of each beam group shown in the above-mentioned Figures 17-19 are unified within the entire determined resource range, that is, the beam numbers of each beam group of different time resources or frequency domain resources are unified.
- the first communication device notifies the second communication device with different bandwidth requirement capabilities, it still maintains the unity of the overall beam number, which is not only beneficial to the beam number and resource management of the first communication device, but also conducive to simplifying the second communication.
- Processing by the device includes switching of beam sets as bandwidth requirements change.
- the beam number of the foregoing beam may also be referred to as an identification (identification, ID) of the beam, which is not limited in the embodiment of the present application.
- Bandwidth requirement configurations or capabilities supported by different second communication devices may be different. For example, some second communication devices only support narrowband transmission due to considerations of cost, power consumption, size, etc., and some second communication devices can be configured as narrowband transmission due to power consumption considerations and business requirements even if the hardware can support large bandwidth , some second communication devices can support a wider bandwidth to meet service transmission requirements. Therefore, some second communication devices only need or can only support narrowband transmission of several RBs in one carrier, some second communication devices need or can support transmission of one carrier bandwidth, and some second communication devices may need to support several RBs. transmission of one or more carrier bandwidths. Based on the above situation, multiple beam transmission of one channel and/or signal needs to support transmission of second communication devices with different bandwidth requirements or capabilities.
- the L beams included in any one of the S beam groups occupy at least two frequency domain resources, and support the second communication device with different bandwidth requirements or capabilities to receive the L beams, so as to complete beam scan. That is to say, the above-mentioned different beam groups may correspond to different bandwidths in the frequency domain, and have different time units in the time domain. In the time-frequency domain, different beam groups may partially overlap or be independent of each other.
- the first communication device determines the first transmission resources of the S beam groups, and then sends the S beam groups to the second communication device according to the first transmission resources.
- the S beam groups include the first beam group, the first beam group includes L beams carrying one channel and/or signal, the L beams occupy N1 frequency domain resources, and each frequency domain resource corresponds to L/N1 hours Domain resource, L is a positive integer greater than or equal to 2, N1 is a positive integer less than or equal to L, and L is divisible by N1.
- the time-frequency resources occupied by any one of the S beam groups sent by the first communication device are time-frequency multiplexed or frequency-division multiplexed, and can support second communication devices with different bandwidth requirements, that is, those that support low bandwidth requirements
- the second communication device performs beam scanning and reception at the same frequency in a time-division multiplexing manner, and the second communication device that supports large bandwidth requirements performs beam reception more quickly in time-frequency multiplexing, that is, simultaneously monitors and scans beams in different frequency domains, so that it can quickly
- the complete periodic scanning of multiple beams can be performed in the time-frequency domain, which can shorten the time for beam alignment.
- FIG. 20 is an interactive schematic diagram of a beam transmission method 200 .
- the beam transmission method 200 includes but is not limited to:
- the second communication device sends feedback information, where the feedback information includes measurement results of signals and/or channels corresponding to the S beam groups.
- the feedback resources used to feed back the feedback information may be predefined by both the first communication device and the second communication device, or may be configured by the first communication device.
- the feedback resource can be a physical random access channel (physical random access channel, PRACH) resource, or a payload (payload) of the PRACH, or an uplink control channel/data channel/media access control layer (media access control, MAC) )information.
- PRACH physical random access channel
- MAC media access control layer
- Feedback resources may be preamble sequences, or frequency domain resources, or time domain resources.
- the number of beams and measurement indicators measured and fed back by the second communication device may be predefined or configured.
- the measurement results of the signals and/or channels corresponding to the S beam groups may refer to: the signals and/or channels corresponding to the S beam groups
- the average value, or maximum value, or minimum value, etc. of the measurement results are not limited in this embodiment of the present application.
- the second communication device may feed back the measurement results of the signals and/or channels corresponding to the S beam groups to the first communication device, so that the first communication device and the second communication device may The same beam is used for signal or channel transmission, that is, the first communication device and the second communication device perform beam alignment according to the measurement results.
- the second communication device after receiving the S beam groups in the first period, simultaneously feeds back the measurement results of signals and/or channels corresponding to the S beam groups in the first period to the first A communication device, that is, the feedback information includes measurement results of signals and/or channels corresponding to the S beam groups in the first period.
- the measurement results of signals and/or channels corresponding to all beam groups can be fed back on one feedback resource in the form of one feedback information, and all beam groups use or share one feedback resource, which can reduce the overhead of feedback resources.
- the measurement results of signals and/or channels corresponding to all beam groups are fed back on multiple feedback resources in the form of multiple feedback information, so that the first communication device can obtain different feedback information on different resources. For example, as shown in FIG.
- the second communication device after the second communication device receives beam group #0 and beam group #1 in the first period, it sends the measurement results of signals and/or channels corresponding to beam group #0 and beam group #1 to Feedback on feedback resource #0, that is, the signal and/or channel measurement results corresponding to beam group #0 on Ta time domain resources and beam group #1 on Tb time domain resources are fed back on Tb+kb time domain resources .
- the second communication device after receiving a beam group in the second period, feeds back the measurement results of the signals and/or channels corresponding to the S beam groups in the second period , and the feedback resource corresponding to each beam group is before the time domain resource of the next beam group. That is to say, the second communication device feeds back the measurement results of signals and/or channels corresponding to one beam group received in each second period one by one, that is, the feedback information includes Signal and/or channel measurements.
- the feedback resource may also be associated with the transmission resource.
- the first communication device and the second communication device respectively establish a corresponding relationship between a beam group and a feedback resource according to the order of beam transmission, and each feedback resource is located after the transmission resource of the corresponding beam group.
- This embodiment enables the second communication device to quickly measure and feed back the beams in the beam group after receiving a beam group in the second period, thereby reducing the feedback delay and speeding up the beam alignment time.
- the second communication device after the second communication device receives beam group #0 in the second period, it feeds back the measurement result of the signal and/or channel corresponding to beam group #0 on feedback resource #0, and After beam group #1 is received in another second cycle, the signal and/or channel measurement results corresponding to beam group #1 are fed back on feedback resource #1, that is, the signal corresponding to beam group #0 on the Ta time domain resource
- the signal and/or channel measurement results are fed back on Ta+kb time domain resources
- signal and/or channel measurement results corresponding to beam group #1 on Tb time domain resources are fed back on Tb+kb time domain resources.
- the second communication device performs periodic feedback on the S beam groups, and the first communication device may not need additional feedback configuration instructions to the second communication device (such as triggering feedback conditions and feedback resource configuration)
- the second communication device feeds back the measurement results of the signals and/or channels corresponding to the beam groups received in the cycle.
- the measurement results of signals and/or channels corresponding to the same beam or beams with the same number correspond to one feedback Resources
- measurement results of signals and/or channels corresponding to the same beam or beams with the same number in different beam groups share a feedback resource. That is to say, when the second communication device feeds back measurement results of signals and/or channels corresponding to S beam groups, each feedback resource is used to feed back measurement results of signals and/or channels corresponding to the same beam or beams with the same number.
- the measurement results of signals and/or channels corresponding to beams with beam number 4 in beam group #0, beam group #1, beam group #2, and beam group #3 share feedback resource #4, That is, the feedback resource #4 is used to feed back the signal and/or channel measurement results corresponding to the beam whose beam number is 4 in beam group #0, beam group #1, beam group #2, and beam group #3.
- the feedback information includes measurement results of signals and/or channels corresponding to S beam groups
- the measurement results of signals and/or channels corresponding to beam groups with the same start time and same reception time are shared A feedback resource.
- all measurement results of signals and/or channels corresponding to beam groups having the same start time and the same end time before the feedback resource can be fed back on one feedback resource. For example, as shown in Figure 24, beam group #0 and beam group #1 have the same start time and the same end time, then use feedback resource #0 to feed back the signals corresponding to beam group #0 and beam group #1 and/or Channel measurement results.
- the feedback information includes the measurement results of the signals and/or channels corresponding to the S beam groups
- the signal and/or channel corresponding to the same beam or the beam with the same beam number before the feedback resource Measurement results share a feedback resource.
- This embodiment allows the second communication device to use one feedback resource to feed back the measurement results of signals and/or channels corresponding to all beam groups before the feedback resource, which can speed up the feedback speed of the second communication device, thereby facilitating the acceleration of beam alignment. time.
- the feedback information includes measurement results of one or more beams in the S beam groups when the S beam groups are transmitted aperiodically.
- the second communication device may feed back the measurement results of signals and/or channels corresponding to one or more beams when receiving one or more beams as required, so that the signal and/or channel Feedback of measurement results is more flexible and timely.
- the feedback information includes measurement results of signals and/or channels corresponding to one or more beams whose measurement results are greater than the first threshold. That is, among the S beam groups fed back by the second communication device, the signal and/or channel measurement results corresponding to one or more beams whose channel or signal measurement results are greater than the first threshold.
- This implementation manner can enable the first communication device to quickly determine the beam with the best measurement result, thereby helping to shorten the time for beam alignment.
- the signals corresponding to the one or more beams whose measurement results are greater than the first threshold and/or the feedback resources corresponding to the channel measurement results are carried in one or more frequency domains. That is to say, the second communication device may select a frequency domain resource to feed back measurement results of signals and/or channels corresponding to one or more beams whose measurement results are greater than the first threshold, or select multiple frequency domains to feed back measurement results Measurement results of signals and/or channels corresponding to one or more beams greater than the first threshold.
- the one frequency may refer to one RB, or refer to multiple RBs, which is not limited in this embodiment of the present application.
- the feedback resource corresponding to the signal corresponding to one or more beams and/or the measurement result of the channel whose measurement result is greater than the first threshold is carried on one frequency
- the feedback resource may be saved.
- the second communication device may use the frequency corresponding to the measurement result of the signal and/or channel corresponding to one or more beams whose measurement result is greater than the first threshold
- the measurement result fed back in each frequency domain is the measurement result of the signal and/channel corresponding to the frequency, so that each feedback information does not need to carry additional frequency information, which can reduce the signaling amount of the feedback information, This in turn saves feedback resources.
- the feedback information may also indicate different frequency domain resources corresponding to beams having the same quasi-co-located QCL relationship. That is to say, the second communication device feeds back different frequency domain resources corresponding to beams having the same quasi-co-located QCL relationship to the first communication device in the form of feedback information, so that the first communication device determines which frequency band beams have For the same QCL relationship, which frequency beams have different QCL relationships, so that the first communication device can subsequently configure the transmission of different beams on a large bandwidth according to the different frequency domain resources corresponding to the beams with the same quasi-co-located QCL relationship , so as to avoid the problem that the beam deviation cannot detect the wave speed or make a wrong beam selection when different frequencies correspond to different beams due to beam deviation during large-bandwidth communication.
- the first communication device receives feedback information.
- the second communication device feeds back the measurement results of the signals and/or channels corresponding to the S beam groups to the first communication device, so that it is beneficial for the first communication device to determine and match the first communication device according to the feedback measurement results.
- the optimal beam for data transmission by the communication device that is, beam alignment between the first communication device and the second communication device.
- the embodiment of the present application also provides a beam transmission method 300, and FIG. 25 is an interactive schematic diagram of the beam transmission method 300.
- the beam transmission method 300 includes but is not limited to:
- the first communication device determines the second transmission resource for transmitting K beams to the fourth communication device; the second transmission resource occupies N3 frequency domain resources, and each of the N3 frequency domain resources corresponds to K/N3 Time domain resources; N3 is a positive integer less than or equal to K.
- K is a positive integer divisible by N3.
- the first communication device sends K beams to the fourth communication device according to the second transmission resource.
- the fourth communication device determines the second transmission resources for receiving K beams.
- the fourth communication device receives K beams from the first communication device according to the second transmission resource.
- the first communication device determines the second transmission resources of K beams, and the second transmission resources occupy different time-domain resources and frequency-domain resources, so that the second communication device can, according to its own supported bandwidth capability,
- the K beams are received in the time-frequency domain, instead of only receiving K beams on multiple time domain resources of one frequency domain resource, so that the time for fully receiving the K beams can be shortened, which is beneficial to shorten the time for beam alignment .
- the first communication device may configure transmission resources of different beams for different second communication devices, or both the first communication device and the second communication device may predefine transmission resources of different beams.
- the first communication device configures P time domain resources and Q frequency resources for the second communication device #1 to perform K beam transmission; configures R time domain resources and O frequency resources for the second communication device #2 to perform Transmission of K beams.
- P, Q, R, O are natural numbers less than or equal to K.
- the second communication device #1 of requirement or type or capability 1 receives K beams at different times at the same frequency; the second communication device #2 of requirement or type or capability 2 performs K beam reception at different frequencies at the same time Beam reception: the second communication device #3 of requirement or type or capability 3 performs reception of K beams according to different frequencies of the same time domain resource or multiple time domain resources and multiple frequency resources.
- the second communication device #2 of type or capability 2 may also receive K beams according to different time domain resources of the same frequency.
- the first communication device or the second communication device may include a hardware structure and/or a software module in the form of a hardware structure, a software module, or a hardware structure plus a software module. Realize the above functions. Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
- the embodiment of the present application provides a communication device 2600 .
- the communication device 2600 may be a component of the first communication device (eg, integrated circuit, chip, etc.), or a component of the second communication device (eg, integrated circuit, chip, etc.).
- the communication device 2600 may also be another communication unit, configured to implement the method in the method embodiment of the present application.
- the communication device 2600 may include: a communication unit 2601 and a processing unit 2602 .
- a storage unit 2603 may also be included.
- one or more units in Figure 26 may be implemented by one or more processors, or by one or more processors and memory; or by one or more processors and a transceiver; or by one or more processors, memories, and a transceiver, which is not limited in this embodiment of the present application.
- the processor, memory, and transceiver can be set independently or integrated.
- the communication device 2600 has the function of implementing the first communication device described in the embodiment of the present application.
- the communication device 2600 has the function of realizing the second communication device described in the embodiment of the present application.
- the communication device 2600 includes the first communication device to execute the modules or units or means corresponding to the steps described in the embodiment of the present application.
- the functions or units or means (means) can be implemented through software It may be implemented by hardware, or by executing corresponding software by hardware, or by a combination of software and hardware. For details, further reference may be made to the corresponding descriptions in the aforementioned corresponding method embodiments.
- a communication device 2600 may include:
- the processing unit 2602 is configured to determine the first transmission resources of the S beam groups; any beam group in the S beam groups is the first beam group; the first beam group includes a channel and/or signal carrying L beams; the L beams occupy N1 frequency domain resources; each frequency domain resource corresponds to L/N1 time domain resources; S is a positive integer; the L is a positive integer greater than or equal to 2; the L is a positive integer greater than or equal to 2; said N1 is a positive integer less than or equal to said L;
- the communication unit 2601 is configured to send the S beam groups according to the first transmission resource.
- the N1 is a positive integer greater than or equal to 2.
- the time domain resources corresponding to the N1 frequency domain resources are the same; or, there are one or more time domain resources corresponding to the N2 frequency domain resources among the N1 frequency domain resources offset values, the N2 is less than or equal to the N1.
- the S beam groups are sent according to a transmission cycle; the transmission cycle includes a first cycle, or the transmission cycle includes the first cycle and one or more second cycles period, the second period is smaller than the first period.
- the S beam groups are sent according to a transmission time or a candidate transmission time of aperiodic transmission.
- the transmission time or candidate transmission time of the aperiodic transmission is indicated by the third communication device.
- the beam numbers of beams in different time domains and/or the beam numbers of beams in different frequency domains range from 0 to M-1 There is a shift relationship within; or, the beam numbers of the beam subgroups have a shift relationship in the range from 0 to M-1; the M is the number of beams in each beam group, and the M is a positive integer.
- the beam numbers between different beam groups have a cyclic shift relationship .
- the communication unit 2601 is further configured to: receive feedback information, where the feedback information includes measurement results of signals and/or channels corresponding to the S beam groups.
- the signal and/or channel measurement results corresponding to the same beam or beams with the same beam number correspond to one feedback resource.
- the feedback information includes measurement results of signals and/or channels corresponding to S beam groups in the first period or in the second period; the first period or the second period is the transmission period of the S beam groups; or, the feedback information includes measurement results of signals and/or channels corresponding to one or more beams in the S beam groups when the S beam groups are transmitted aperiodically.
- the feedback information includes measurement results of signals and/or channels corresponding to one or more beams whose measurement results are greater than a first threshold.
- signals corresponding to one or more beams whose measurement results are greater than the first threshold and/or feedback resources corresponding to channel measurement results are carried in one or more frequency domains.
- the feedback information indicates different frequency domain resources corresponding to signals and/or channels corresponding to beams having the same quasi-co-located QCL relationship.
- the N1 frequency domain resources are carried on N1 carriers, or N1 subbands of one carrier, or N1 bandwidth parts BWP of one carrier, or more than N1 subbands of one carrier On the band, or on the N1 bandwidth parts BWP larger than one carrier.
- the time-frequency resources occupied by at least two beam groups in the S beam groups partially overlap, or the S1 beam group and the S2 beam group in the S beam groups overlap
- the time-frequency resources occupied by the beam groups overlap each other, the S1 is smaller than the S, and the S2 is smaller than the S.
- the processing unit 2602 is further configured to: determine a second transmission resource for transmitting K beams to the fourth communication device; the K is a positive integer greater than or equal to 2; the second transmission resource Occupying N3 frequency domain resources, each of the N3 frequency domain resources corresponds to K/N3 time domain resources; the N3 is a positive integer less than or equal to the K; the communication unit 2601 also uses and sending K beams to the fourth communication device according to the second transmission resource.
- a communication device 2600 may include:
- the processing unit 2602 is configured to determine the first transmission resources of the S beam groups; any beam group in the S beam groups is the first beam group; the first beam group includes a channel and/or signal carrying L beams; the L beams occupy N1 frequency domain resources; each frequency domain resource corresponds to L/N1 time domain resources; the S is a positive integer; the L is a positive integer greater than or equal to 2; Said N1 is a positive integer less than or equal to said L;
- the communication unit 2601 is configured to receive the S beam groups according to the first transmission resource.
- the S is equal to 1, and the N1 is a positive integer greater than or equal to 2.
- the time domain resources corresponding to the N1 frequency domain resources are the same; or, there are one or more time domain resources corresponding to the N2 frequency domain resources among the N1 frequency domain resources offset values, the N2 is less than or equal to the N1.
- the S beam groups are received according to a transmission cycle; the transmission cycle includes a first cycle, or the transmission cycle includes the first cycle and one or more second period, the second period is smaller than the first period.
- the S beam groups are received according to a transmission time or a candidate transmission time of aperiodic transmission.
- the transmission time or candidate transmission time of the aperiodic transmission is indicated by the third communication device.
- the beam numbers of beams in different time domains and/or the beam numbers of beams in different frequency domains range from 0 to M-1 There is a shift relationship within the range; or, the beam numbers of the beam subgroups have a shift relationship in the range from 0 to M-1; the M is the number of beams in each beam group, and the M is a positive integer.
- the beam numbers between different beam groups have a cyclic shift relationship .
- the communication unit 2601 is further configured to: send feedback information, where the feedback information includes measurement results of signals and/or channels corresponding to the S beam groups.
- the signal and/or channel measurement results corresponding to the same beam or beams with the same beam number correspond to one feedback resource.
- the feedback information includes measurement results of signals and/or channels corresponding to the S beam groups in the first period or in the second period; the first period or the second period is the transmission period of the S beam groups; or, the feedback information includes measurement results of signals and/or channels corresponding to one or more beams in the S beam groups when the S beam groups are transmitted aperiodically.
- the feedback information includes measurement results of signals and/or channels corresponding to one or more beams whose measurement results are greater than a first threshold.
- the signals corresponding to the one or more beams whose measurement results are greater than the first threshold and/or the feedback resources corresponding to the channel measurement results are carried on one or more frequency domains.
- the feedback information indicates different frequency domain resources corresponding to signals and/or channels corresponding to beams having the same quasi-co-located QCL relationship.
- the numbers of the L/N1 beams corresponding to each frequency domain resource are cyclically selected from the range of 0 to L-1 according to time sequence of.
- the L beams are beams in different directions, or beams with different quasi-co-located QCL relationships.
- the N1 frequency domain resources are carried on N1 carriers, or N1 subbands of one carrier, or N1 bandwidth parts BWP of one carrier, or more than N1 subbands of one carrier On the band, or on the N1 bandwidth parts BWP larger than one carrier.
- the time-frequency resources occupied by at least two beam groups in the S beam groups partially overlap, or the S1 beam group and the S2 beam group in the S beam groups overlap
- the time-frequency resources occupied by the beam groups overlap each other, the S1 is smaller than the S, and the S2 is smaller than the S.
- FIG. 27 is a schematic structural diagram of the communication device 2700 .
- the communication device 2700 may be the first communication device or the second communication device, or it may be a chip, a chip system, or a processor that supports the first communication device to implement the above method, or it may support the second communication device to implement the above method chips, chip systems, or processors.
- the device can be used to implement the methods described in the above method embodiments, and for details, refer to the descriptions in the above method embodiments.
- the communication device 2700 may include one or more processors 2701 .
- the processor 2701 may be a general-purpose processor or a special-purpose processor. For example, it may be a baseband processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or a central processing unit (Central Processing Unit, CPU).
- the baseband processor can be used to process communication protocols and communication data
- the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminals, terminal chips, DU or CU, etc.), execute software programs, and process Data for Software Programs.
- the communication device 2700 may include one or more memories 2702, on which instructions 2704 may be stored, and the instructions may be executed on the processor 2701, so that the communication device 2700 executes the above method Methods described in the Examples.
- data may also be stored in the memory 2702 .
- the processor 2701 and the memory 2702 can be set separately or integrated together.
- the memory 2702 may include but not limited to hard disk (hard disk drive, HDD) or solid-state drive (solid-state drive, SSD) and other non-volatile memory, random access memory (Random Access Memory, RAM), erasable and programmable Read-only memory (Erasable Programmable ROM, EPROM), read-only memory (Read-Only Memory, ROM) or portable read-only memory (Compact Disc Read-Only Memory, CD-ROM), etc.
- the communication device 2700 may further include a transceiver 2705 and an antenna 2706 .
- the transceiver 2705 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to realize a transceiver function.
- the transceiver 2705 may include a receiver and a transmitter, and the receiver may be called a receiver or a receiving circuit for realizing a receiving function; the transmitter may be called a transmitter or a sending circuit for realizing a sending function.
- the communication device 2700 is a first communication device: the processor 2701 is configured to perform S101 in the beam transmission method 100 and perform S301 in the beam transmission method 300 .
- the transceiver 2705 is used to execute S102 in the above beam transmission method 100 , to execute S202 in the beam transmission method 200 , and to execute S302 in the beam transmission method 300 .
- the communication device 2700 is a second communication device: the processor 2701 is configured to execute S103 in the beam transmission method 100 and to execute S303 in the beam transmission method 300 .
- the transceiver 2705 is used to execute S104 in the beam transmission method 100 , to execute S201 in the beam transmission method 200 , and to execute S304 in the beam transmission method 300 .
- the processor 2701 may include a transceiver for implementing receiving and sending functions.
- the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
- the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
- the above-mentioned transceiver circuit, interface or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit may be used for signal transmission or transfer.
- the processor 2701 may store instructions 2703, and the instructions 2703 run on the processor 2701, and may cause the communication device 2700 to execute the methods described in the foregoing method embodiments.
- the instruction 2703 may be fixed in the processor 2701, in this case, the processor 2701 may be implemented by hardware.
- the communication device 2700 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
- the processor and the transceiver described in the embodiment of the present application can be implemented in integrated circuit (integrated circuit, IC), analog IC, radio frequency integrated circuit RFIC, mixed signal IC, application specific integrated circuit (application specific integrated circuit, ASIC), printed circuit board (printed circuit board, PCB), electronic equipment, etc.
- the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (Bipolar Junction Transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
- CMOS complementary metal oxide semiconductor
- NMOS nMetal-oxide-semiconductor
- PMOS P-type Metal oxide semiconductor
- BJT bipolar junction transistor
- BiCMOS bipolar CMOS
- SiGe silicon germanium
- GaAs gallium arsenide
- the communication device described in the above embodiments may be the first communication device or the second communication device, but the scope of the communication device described in the embodiment of the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 27 .
- a communication device may be a stand-alone device or may be part of a larger device.
- the communication device may be:
- a set of one or more ICs may also include storage components for storing data and instructions;
- ASIC such as a modem (modulator)
- the communication device may be a chip or a chip system
- the chip 2800 shown in FIG. 28 includes a processor 2801 and an interface 2802 .
- the number of processors 2801 may be one or more, and the number of interfaces 2802 may be more than one.
- the chip 2800 may also include a memory 2803 .
- the processor 2801 is configured to determine first transmission resources of S beam groups; any beam group in the S beam groups is the first beam group; the first beam group includes carrying one channel and/or L beams of the signal; the L beams occupy N1 frequency domain resources; the L is a positive integer greater than or equal to 2; S is a positive integer; the N1 is a positive integer less than or equal to the L;
- the interface 2802 is configured to output the S beam groups according to the first transmission resource.
- the processor 2801 is configured to determine first transmission resources of S beam groups; any beam group in the S beam groups is the first beam group; the first beam group includes carrying one channel and/or L beams of the signal; the first beam group is any beam group in the S beam groups; the L beams occupy N1 frequency domain resources; each frequency domain resource corresponds to L/N1 time domain resources resources; S is a positive integer; the L is a positive integer greater than or equal to 2; the N1 is a positive integer less than or equal to the L;
- the interface 2802 is configured to receive the S beam groups according to the first transmission resource.
- the communication device 2700 and the chip 2800 may also execute the implementation described in the communication device 2600 above.
- various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and overall system design requirements. Those skilled in the art may use various methods to implement the described functions for each specific application, but such implementation should not be understood as exceeding the protection scope of the embodiments of the present application.
- the present application also provides a computer-readable storage medium for storing computer software instructions, and when the instructions are executed by a communication device, the functions of any one of the above method embodiments are realized.
- the present application also provides a computer program product, which is used for storing computer software instructions, and when the instructions are executed by a communication device, the functions of any one of the above method embodiments are realized.
- the present application also provides a computer program, which, when running on a computer, can realize the functions of any one of the above method embodiments.
- all or part may be implemented by software, hardware, firmware or any combination thereof.
- software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
- the computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, all or part of the interactions or functions described in the embodiments of the present application will be generated.
- the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
- the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
- the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state drive (solid state drive, SSD)) etc.
- a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
- an optical medium for example, a high-density digital video disc (digital video disc, DVD)
- a semiconductor medium for example, a solid state drive (solid state drive, SSD)
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Abstract
本申请提供了一种波束传输方法及相关装置。该方法中,第一通信装置确定S个波束组的第一传输资源,然后根据第一传输资源向第二通信装置发送S个波束组。其中,S个波束组中的任一波束组为第一波束组,第一波束组包括承载一个信道和/或信号的L个波束,L个波束占用N1个频域资源,每个频域资源对应L/N1个时域资源,S为正整数,L为大于或等于2的正整数,N1为小于或等于L的正整数。第一通信装置发送的S个波束组中的任一波束组占用的时频资源是时频复用或者频分复用的,可支持不同带宽需求的第二通信装置,从而有利于支持大带宽的第二通信装置在多个频域资源上同时完成对多个波束的接收,进而有利于缩短波束对齐的时间。
Description
本申请要求于2021年5月18日提交中国国家知识产权局、申请号为202110541194.6、申请名称为“一种波束传输方法及相关装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,尤其涉及一种波束传输方法及相关装置。
随着无线通信标准的演进,从***移动通信(4th-generation,4G)到第五代移动通信(5th-generation,5G),再到第六代移动通信(6th-generation,6G),无线通信支持的频率从小于100GHz的厘米波和毫米波,到大于100GHz的毫米波,再到太赫兹,甚至到几百太赫兹。
无线通信支持的频率升高,会增大通信的路径损耗,从而导致发送端的覆盖范围降低。为提高覆盖范围,5G通信***中,发送端通过对同步信号块(synchronization signal block,SS block)进行波束扫描来提高每个同步信号块的覆盖。波束扫描是指发送端向接收端发送多个波束,接收端对该多个波束进行扫描接收,然后对多个波束对应的信道和/信号进行测量,并向发送端反馈该测量结果,从而使得发送端和接收端均选择测量结果最优的波束接入,即波束对齐。
然而,发送端和接收端的波束对齐时间,会影响发送端与接收端的初始接入所需时长。因此,如何缩短波束对齐时间为亟需解决的问题之一。
发明内容
本申请实施例提供了一种波束传输方法及相关装置,有利于缩短波束对齐的时间。
第一方面,本申请实施例提供一种波束传输方法。该方法中,第一通信装置确定S个波束组的第一传输资源,然后根据该第一传输资源,发送S个波束组。S个波束组中的任一波束组为第一波束组,第一波束组包括承载一个信道和/或信号的L个波束,该L个波束占用N1个频域资源,每个频域资源对应L/N1个时域资源,S为正整数;L为大于或等于2的正整数,N1为小于或等于L的正整数。
可见,第一通信装置发送的S个波束组中的任一波束组占用的时频资源是时频复用或者频分复用(如N1=L)的,可支持不同带宽需求的第二通信装置,从而有利于支持大带宽的第二通信装置在多个频域资源上同时完成对多个波束的接收,进而有利于缩短波束对齐的时间。
一种可选的实施方式中,S等于1,N1为大于或等于2的正整数。也就是说,第一通信装置向第二通信装置只发送第一波束组时,第一波束组包括的L个波束占用至少两个频域资源,从而可使得支持大带宽的第二通信装置在至少两个频域资源上接收该L个波束,即可在较短的时间上完成对L个波束的接收,进而有利于缩短对L个波束对齐的时间。
一种可选的实施方式中,上述L个波束占用的N1个频域资源对应的时域资源相同;或 者,上述L个波束占用的N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值,N2小于或等于N1。
当N1个频域资源对应的时域资源相同时,第一通信装置可在较为集中的时域资源上发送该L个波束,从而有利于第二通信装置在较短的时间内完成对L个波束的接收,进而有利于缩短波束对齐的时间。当第二通信装置在同一时域资源上接收多个波束的能力较差时,N1个频域资源中的部分频域资源对应的时域资源可不相同。
一种可选的实施方式中,S个波束组是根据传输周期发送的,传输周期包括第一周期,或者,传输周期包括第一周期以及一个或多个第二周期,第二周期小于第一周期。第一周期是S个波束组传输的周期,第二周期是该S个波束组中的多个波束在第一周期内多次传输的时间间隔,第一周期也可指S个波束组的多个波束中每个波束的一个传输周期。S个波束组根据第二周期发送时,第一通信装置在短时间内多次发送多个波束,有利于第二通信装置快速完成对多个波束的接收。S个波束组根据第一周期发送时,由于第二周期小于第一周期,则该方式有利于节省第一通信装置的资源开销。
又一种可选的实施方式中,S个波束组是根据非周期传输的传输时间或候选传输时间发送的。也就是说,第一通信装置可更加灵活地在传输时间或某些候选传输时间上发送S个波束组,既可节省第一通信装置的资源开销,也可使得第二通信装置在较短时间内完成对多个波束的接收。
当第二通信装置和第一通信装置之间由第三通信装置协助通信时,上述非周期传输的传输时间或候选传输时间可以是第三通信装置通过信令指示的,即第三通信装置通过信令告知第一通信装置在哪些传输时间或哪些候选传输时间上非周期发送S个波束组。
一种可选的实施方式中,每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;M为每个波束组内的波束个数,且M为正整数。
其中,不同时域上波束的波束编号可指占用一个频域资源和该频域资源对应的不同时域资源上波束的波束编号,也可指占用不同时域资源以及每个时域资源对应的多个频域资源上波束的波束编号;不同频域上波束的波束编号可指占用一个时域资源和该时域资源对应的不同频域资源上波束的波束编号,也可指占用不同频域资源以及每个频域资源对应的多个时域资源上波束的波束编号。
另外,上述移位的关系可指移位的关系,也可指循环移位的关系。
一种可选的实施方式中,当S个波束组中每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。也就是说,当每个波束组占用的时域资源个数或频域资源个数相同时,下一个波束组的波束编号是基于当前波束组的波束编号和循环移位的关系进行编号的。
一种可选的实施方式中,第一通信装置还可接收反馈信息,该反馈信息包括S个波束组对应的信号和/或信道的测量结果。可见,第一通信装置通过接收反馈信息可获得S个波束组对应的信号和/或信道的测量结果,从而可根据该测量结果确定最优波束,即实现与第二通信装置的波束对齐。
一种可选的实施方式中,S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
可见,反馈信息反馈的是S个波束组对应的信号和/或信道的测量结果时,不同波束组内相同的波束或相同波束编号的波束对应的信号和/或信道的测量结果共享一个反馈资源,该方 式有利于节省反馈资源的开销。
另一种可选的实施方式中,反馈信息包括第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果;第一周期或第二周期是上述S个波束组的传输周期;或者,反馈信息包括非周期发送S个波束组时该S个波束组内的S个波束对应的信号和/或信道的测量结果。
可见,反馈信息反馈的是第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果,或者,反馈的是非周期传输S个波束组时,S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
又一种可选的实施方式中,反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果,即反馈信息反馈的是测量结果较好的信号和/或信道的测量结果,从而有利于第一通信装置快速地从获得的测量结果中确定最优波束,可缩短波束对齐的时间。
一种可选的实施方式中,测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个或多个频率上。当测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个频率上时,可节省反馈资源;当测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果或对应的反馈资源承载在多个频率上时,每个频域上反馈的测量结果就是该频率对应的信号和/信道的测量结果,从而每个反馈信息无需额外携带频率信息,可减少反馈信息的信令量,进而也可节省反馈资源。
一种可选的实施方式中,反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。可见,反馈信息还可指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源,从而可使得第一通信装置后续根据该具有相同准共址QCL关系的波束对应的不同频域资源,在大带宽上配置不同波束的传输,进而避免大带宽通信时波束偏离导致不同频率对应不同的波束时无法检测到波速或错误进行波束选择的问题。
一种可选的实施方式中,N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
可见,N1个频域资源可承载在不同带宽的频域资源上,从而传输的L个波束支持不同带宽需求的第二通信装置对其进行接收。
一种可选的实施方式中,S大于1时,S大于1时,S个波束组中至少两个波束组占用的时频资源部分重叠,或者S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,S1为小于S的正整数,S2为小于S的正整数。该方式有利于在相同的时频资源上传输S个波束组,可兼顾高低带宽需求的第二通信装置,从而提高波束扫描速度。
一种可选的实施方式中,第一通信装置还可确定向第四通信装置传输K个波束的第二传输资源,再根据第二传输资源向第四通信装置发送该K个波束;第二传输资源可以是第一通信装置根据第四通信装置支持的带宽能力确定的,K为大于或等于2的正整数,第二传输资源占用N3个频域资源,N3个频域资源中的每个频域资源对应K/N3个时域资源,N3为小于或等于K的正整数,K被N3整除。
可见,第一通信装置可针对不同第二通信装置支持的带宽能力,确定传输不同个数的波束的传输资源,从而使得不同第二通信装置根据自身支持的带宽能力,在不同时频资源上接收多个波束,即支持大带宽的第二通信装置在较短时间内完成对多个波束的接收,可缩短波 束对齐时间,支持窄带宽的第二通信装置按照时分复用的方式接收多个波束或在较窄带宽上按照时频分复用的方式接收多个波束。
第二方面,本申请还提供了一种波束传输方法。该方面的波束传输方法与第一方面所述的波束传输方法相对应,该方面的波束传输方法是从第二通信装置侧进行阐述的。该方法中,第二通信装置确定S个波束组的第一传输资源,然后根据第一传输资源接收S个波束组。S个波束组中的任一波束组为第一波束组,第一波束组包括承载一个信道和/或信号的L个波束,L个波束占用N1个频域资源,每个频域资源对应L/N1个时域资源,S为正整数,L为大于或等于2的正整数,N1为小于或等于L的正整数。
可见,本申请实施例中,第二通信装置接收的S个波束组中的任一波束组占用的时频资源是时频复用或者频分复用的,可支持不同带宽需求的第二通信装置,从而支持大带宽的第二通信装置在多个频域资源上同时完成对多个波束的接收,进而可缩短波束对齐的时间。
一种可选的实施方式中,S等于1,N1为大于或等于2的正整数。也就是说,第二通信装置只接收第一波束组时,第一波束组包括的L个波束占用至少两个频域资源,从而可使得支持大带宽的第二通信装置在至少两个频域资源上接收该L个波束,即可在较短的时间上完成对L个波束的接收,可缩短波束对齐的时间。
一种可选的实施方式中,N1个频域资源对应的时域资源相同;或者,N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值;N2小于或等于N1。
当N1个频域资源对应的时域资源相同时,第二通信装置可在较为集中的时域资源上接收该L个波束,即在较短的时间内完成对L个波束的接收,进而可缩短与第一通信装置进行波束对齐的时间。当第二通信装置在同一时域资源上接收多个波束的能力较差时,N1个频域资源中的部分频域资源对应的时域资源可不相同。
又一种可选的实施方式中,S个波束组是根据传输周期接收的,传输周期包括第一周期,或第一周期以及一个或多个第二周期,第二周期小于第一周期。第一周期是S个波束组传输的周期,第二周期是多个波束在第一周期内多次传输的时间间隔,第一周期也可指一个波束组或S个波束组的多个波束中每个波束的一个传输周期。S个波束组根据第二周期接收时,第二通信装置在短时间内多次接收该多个波束,可快速完成对多个波束的接收。S个波束组根据第一周期接收时,由于第一周期大于第二周期,则该方式有利于节省反馈资源的开销。
另一种可选的实施方式中,S个波束组是根据传输周期接收的;传输周期包括第一周期。也就是说,第二通信装置只根据第一周期接收多个波束,从而在一定时间内完成对多个波束的接收。
一种可选的实施方式中,S个波束组是根据非周期传输的传输时间或候选传输时间接收的。也就是说,第二通信装置可更加灵活地在指定传输时间或某些候选传输时间上接收S个波束组,既有利于节省传输的资源开销,也可使得第二通信装置在较短时间内完成对S个波束组的接收。
当第二通信装置和第一通信装置之间由第三通信装置协助通信时,上述非周期传输的传输时间或候选传输时间可以是第三通信装置通过信令指示的,即第三通信装置通过信令告知第二通信装置在哪些传输时间或哪些候选传输时间上非周期接收S个波束组。
一种可选的实施方式中,每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;M为每个波束组内的波束个数,且M为正整数。
其中,不同时域上波束的波束编号可指占用一个频域资源和该频域资源对应的不同时域 资源上波束的波束编号,也可指占用不同时域资源以及每个时域资源对应的多个频域资源上波束的波束编号;不同频域上波束的波束编号可指占用一个时域资源和该时域资源对应的不同频域资源上波束的波束编号,也可指占用不同频域资源以及每个频域资源对应的多个时域资源上波束的波束编号。
另外,上述移位的关系可指移位的关系,也可指循环移位的关系。
一种可选的实施方式中,当每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。也就是说,当每个波束组占用的时域资源个数或频域资源个数相同时,下一个波束组的波束编号是基于当前波束组的波束编号和循环移位的关系进行编号的。
一种可选的实施方式中,第二通信装置可发送反馈信息,反馈信息包括S个波束组对应的信号和/或信道的测量结果。可见,第二通信装置通过反馈信息可向第一通信装置反馈S个波束组对应的信号和/或信道的测量结果,从而可使得第一通信装置根据该测量结果确定最优波束,即实现与第二通信装置的波束对齐。
一种可选的实施方式中,S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
可见,反馈信息反馈的是S个波束组对应的信号和/或信道的测量结果时,不同波束组内相同的波束或相同波束编号的波束对应的信号和/或信道的测量结果共享一个反馈资源,该方式可节省接反馈资源的开销。
另一种可选的实施方式中,反馈信息包括第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果;第一周期或所述第二周期是上述S个波束组的传输周期;或者,反馈信息包括非周期发送S个波束组时该S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
可见,反馈信息反馈的可以是周期传输L个波束时,第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果,或者,反馈的是非周期传输L个波束时,S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
又一种可选的实施方式中,反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果,即反馈信息反馈的是测量结果较好的信号和/或信道的测量结果,从而有利于第一通信装置快速地从获得的测量结果中确定最优波束,可缩短波束对齐的时间。
一种可选的实施方式中,测量结果大于第一阈值的一个或多个波束的测量结果对应的反馈资源承载在一个或多个频率上。当测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个频率上时,可节省反馈资源;当测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在多个频率上时,每个频域上反馈的测量结果就是该频率对应的信号和/信道的测量结果,从而每个反馈信息无需携带频率信息,可减少反馈信息的信令量,进而可节省反馈资源。
一种可选的实施方式中,反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。可见,反馈信息还可指示具有相同准共址QCL关系的波束对应的不同频域资源,从而有利于第一通信装置后续根据该具有相同准共址QCL关系的波束对应的不同频域资源,在大带宽上配置不同波束的传输,进而避免大带宽通信时波束偏离导致不同频率对应不同的波束时无法检测到波速或错误进行波束选择的问题。
一种可选的实施方式中,L个波束为不同方向的波束,或为具有不同准共址QCL关系的 波束。当L个波束为不同方向的波束时,第一通信装置在一个频率或时间上某个方向的波束传输的测量结果可以作为另一个频率或时间上同样方向上进行波束传输测量结果的参考,从而避免在每个频率或时间上都发送所有方向的波束,从而提高了***资源使用效率。
一种可选的实施方式中,N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
可见,N1个频域资源可承载在不同带宽的频域资源上,从而传输的L个波束支持不同带宽需求的第二通信装置对其进行接收。
一种可选的实施方式中,S大于1时,S个波束组中至少两个波束组占用的时频资源部分重叠,或者S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,S1为小于S的正整数,S2为小于所述S的正整数。该方式有利于在相同的时频资源上传输S个波束组,有利于节省资源开销,有利于兼顾高低带宽需求的第二通信装置,从而提高波束扫描速度。
第三方面,本申请还提供一种通信装置。该通信装置具有实现上述第一方面所述的第一通信装置的部分或全部功能,或者具有实现上述第二方面所述的第二通信装置的部分或全部功能。比如,该通信装置的功能可具备本申请中第一方面所述的第一通信装置的部分或全部实施例中的功能,也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种可能的设计中,该通信装置的结构中可包括处理单元和通信单元,所述处理单元被配置为支持通信装置执行上述方法中相应的功能。所述通信单元用于支持通信装置与其他通信装置之间的通信。所述通信装置还可以包括存储单元,所述存储单元用于与处理单元和收发单元耦合,其保存通信装置必要的程序指令和数据。
一种实施方式中,所述通信装置包括:
处理单元,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;S为正整数;L为大于或等于2的正整数;N1为小于或等于L的正整数;
通信单元,用于根据所述第一传输资源,发送所述S个波束组。
另外,该方面中,通信装置其他可选的实施方式可参见上述第一方面的相关内容,此处不再详述。
另一种实施方式中,所述通信装置包括:
处理单元,用于确定S个波束组的第一传输资源;S个波束组中的任一波束组为第一波束组;第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;
通信单元,用于根据所述第一传输资源,接收所述S个波束组。
另外,该方面中,通信装置其他可选的实施方式可参见上述第二方面的相关内容,此处不再详述。
作为示例,收发单元可以为收发器或通信接口,存储单元可以为存储器,处理单元可以为处理器。
一种实施方式中,所述通信装置包括:
处理器,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;S为正整数;L为大于或等于2的正整数;N1为小于或等于L的正整数;
通信接口,用于根据所述第一传输资源,发送所述S个波束组。
另外,该方面中,上行通信装置其他可选的实施方式可参见上述第一方面的相关内容,此处不再详述。
另一种实施方式中,所述通信装置包括:
处理器,用于确定S个波束组的第一传输资源;S个波束组中的任一波束组为第一波束组;第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;
通信接口,用于根据所述第一传输资源,接收所述S个波束组。
另外,该方面中,通信装置其他可选的实施方式可参见上述第二方面的相关内容,此处不再详述。
另一种实施方式中,该通信装置为芯片或芯片***。所述处理单元也可以体现为处理电路或逻辑电路;所述收发单元可以是该芯片或芯片***上的输入/输出接口、接口电路、输出电路、输入电路、管脚或相关电路等。
在实现过程中,处理器可用于进行,例如但不限于,基带相关处理,收发器可用于进行,例如但不限于,射频收发。上述器件可以分别设置在彼此独立的芯片上,也可以至少部分的或者全部的设置在同一块芯片上。例如,处理器可以进一步划分为模拟基带处理器和数字基带处理器。其中,模拟基带处理器可以与收发器集成在同一块芯片上,数字基带处理器可以设置在独立的芯片上。随着集成电路技术的不断发展,可以在同一块芯片上集成的器件越来越多。例如,数字基带处理器可以与多种应用处理器(例如但不限于图形处理器,多媒体处理器等)集成在同一块芯片之上。这样的芯片可以称为***芯片(System on a Chip,SoC)。将各个器件独立设置在不同的芯片上,还是整合设置在一个或者多个芯片上,往往取决于产品设计的需要。本申请实施例对上述器件的实现形式不做限定。
第四方面,本申请还提供一种处理器,用于执行上述各种方法。在执行这些方法的过程中,上述方法中有关发送上述信息和接收上述信息的过程,可以理解为由处理器输出上述信息的过程,以及处理器接收输入的上述信息的过程。在输出上述信息时,处理器将该上述信息输出给收发器,以便由收发器进行发射。该上述信息在由处理器输出之后,还可能需要进行其他的处理,然后才到达收发器。类似的,处理器接收输入的上述信息时,收发器接收该上述信息,并将其输入处理器。更进一步的,在收发器收到该上述信息之后,该上述信息可能需要进行其他的处理,然后才输入处理器。
基于上述原理,举例来说,前述方法中提及的发送S个波束组可以理解为处理器输出S个波束组。
对于处理器所涉及的发射、发送和接收等操作,如果没有特殊说明,或者,如果未与其在相关描述中的实际作用或者内在逻辑相抵触,则均可以更加一般性的理解为处理器输出和接收、输入等操作,而不是直接由射频电路和天线所进行的发射、发送和接收操作。
在实现过程中,上述处理器可以是专门用于执行这些方法的处理器,也可以是执行存储器中的计算机指令来执行这些方法的处理器,例如通用处理器。上述存储器可以为非瞬时性 (non-transitory)存储器,例如只读存储器(Read Only Memory,ROM),其可以与处理器集成在同一块芯片上,也可以分别设置在不同的芯片上,本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
第五方面,本申请还提供了一种通信***,该***包括上述方面的至少一个第一通信装置以及至少一个第二通信装置。在另一种可能的设计中,该***还可以包括本申请提供的方案中与第一通信装置、第二通信装置进行交互的其他设备。
第六方面,本申请提供了一种计算机可读存储介质,用于储存指令,当所述指令被通信装置执行时,实现上述第一方面、第二方面任一项所述的方法。
第七方面,本申请还提供了一种包括指令的计算机程序产品,当其在通信装置上运行时,使得通信装置执行上述第一方面、第二方面任一项所述的方法。
第八方面,本申请提供了一种芯片***,该芯片***包括处理器和接口,所述接口用于获取程序或指令,所述处理器用于调用所述程序或指令以实现或者支持第一通信装置实现第一方面所涉及的功能,或者用于调用所述程序或指令以实现或者支持第二通信装置备实现第二方面所涉及的功能。例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中,所述芯片***还包括存储器,所述存储器,用于保存终端必要的程序指令和数据。该芯片***,可以由芯片构成,也可以包括芯片和其他分立器件。
第九方面,本申请提供一种通信装置,包括处理器,用于执行存储器中存储的计算机程序或可执行指令,当计算机程序或可执行指令被执行时,使得该装置执行如第一方面及第一方面各个可能的实现中的方法。
在一种可能的实现中,处理器和存储器集成在一起;
在另一种可能的实现中,上述存储器位于该通信装置之外。
第十方面,本申请提供一种通信装置,包括处理器,用于执行存储器中存储的计算机程序或可执行指令,当计算机程序或可执行指令被执行时,使得该装置执行如第二方面及第二方面各个可能的实现中的方法。
在一种可能的实现中,处理器和存储器集成在一起;
在另一种可能的实现中,上述存储器位于该通信装置之外。
图1是本申请实施例提供的一种通信***的结构示意图;
图2是本申请实施例提供的另一种通信***的结构示意图;
图3是本申请实施例提供的一种不同子载波间隔对应的同步信号块个数的示意图;
图4是本申请实施例提供的一种波束传输方法的交互示意图;
图5是本申请实施例提供的一种S个波束组的分布示意图;
图6是本申请实施例提供的一种多个波束的时频域分布示意图;
图7是本申请实施例提供的另一种多个波束的时频域分布示意图;
图8a是本申请实施例提供的一种S个波束组的时频域分布示意图;
图8b是本申请实施例提供的另一种S个波束组的时频域分布示意图;
图9a是本申请实施例提供的一种波束传输周期的分布示意图;
图9b是本申请实施例提供的又一种S个波束组的时频域分布示意图;
图10是本申请实施例提供的又一种S个波束组的时频域分布示意图;
图11a是本申请实施例提供的一种波束子组的时频域分布示意图;
图11b是本申请实施例提供的一种波束子组的时频域分布示意图;
图11c是本申请实施例提供的又一种波束子组的时频域分布示意图;
图12是本申请实施例提供的又一种S个波束组的时频域分布示意图;
图13是本申请实施例提供的又一种S个波束组的分布示意图;
图14是本申请实施例提供的又一种S个波束组的时频域分布示意图;
图15是本申请实施例提供的又一种多个波束的时频域分布示意图;
图16是本申请实施例提供的又一种多个波束的时频域分布示意图;
图17是本申请实施例提供的又一种S个波束组的时频域分布示意图;
图18是本申请实施例提供的又一种S个波束组的时频域分布示意图;
图19是本申请实施例提供的又一种S个波束组的时频域分布示意图;
图20是本申请实施例提供的另一种波束传输方法的交互示意图;
图21是本申请实施例提供的一种反馈信息的反馈示意图;
图22是本申请实施例提供的又一种反馈信息的反馈示意图;
图23是本申请实施例提供的又一种反馈信息的反馈示意图;
图24是本申请实施例提供的又一种反馈信息的反馈示意图;
图25是本申请实施例提供的又一种波束传输方法的交互示意图;
图26是本申请实施例提供的一种通信装置的结构示意图;
图27是本申请实施例提供的另一种通信装置的结构示意图;
图28是本申请实施例提供的一种芯片的结构示意图。
下面结合本申请实施例中的附图对本申请实施例中的技术方案进行清楚、完整的描述。
首先,为了更好的理解本申请实施例公开的波束传输方法,对本申请实施例适用的通信***进行描述。
请参见图1,图1为本申请实施例提供的一种通信***的结构示意图。该通信***可包括但不限于一个网络设备、一个终端设备。图1所示的设备数量和形态用于举例,并不构成对本申请实施例的限定,实际应用中可以包括两个或两个以上的网络设备,两个或两个以上的终端设备。图1所示的通信***以一个网络设备101,一个终端设备102,且该网络设备101能够为终端设备102提供服务为例进行阐述。其中,图1中的网络设备101以基站为例,终端设备102以手机为例。
本申请实施例还可适用于图2所示的通信***。该通信***可包括但不限于两个终端设备102,终端设备102包括1021和1022,且两个终端设备102之间可建立通信连接,终端设备102均以手机为例。
也就是说,本申请实施例中的第一通信装置可为网络设备,第二通信装置可为终端设备,此时网络设备为终端设备提供服务。可选的,第一通信装置和第二通信装置均为终端设备,此时终端设备与终端设备之间进行通信。本申请实施例对第一通信装置和第二通信装置不做限定。
本申请实施例的技术方案可应用于各种通信***中。例如,***移动通信(4th-generation,4G)***和第五代移动通信(5th-generation,5G)***、以及随着通信技 术的不断发展,本申请实施例的技术方案还可用于第六代移动通信(6th-generation,6G)***等后续演进的通信***等等。
本申请实施例中,网络设备是网络侧的一种用于发射或接收信号的实体,网络设备可为具有无线收发功能的设备或可设置于该设备的芯片。该网络设备包括但不限于:演进型节点B(evolved node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭网络设备(例如,home evolved Node B,或home Node B,HNB)、无线保真(wireless fidelity,WIFI)***中的接入点(access point,AP)、无线中继节点、无线回传节点、传输点(transmission and reception point,TRP或者transmission point,TP)等,还可以为4G、5G甚至6G***中使用的设备,如,新无线(new radio,NR)***中的gNB,或,传输点(TRP或TP),4G***中的网络设备的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(baseband unit,BBU),或,分布式单元(distributed unit,DU),中心单元(centrual unit,CU)或微微网络设备(Picocell),或毫微微网络设备(Femtocell),或,智能驾驶场景中的路侧单元(road side unit,RSU),或无人机、卫星等。
本申请实施例中,终端设备是终端侧的一种用于接收或发射信号的实体,终端设备可为具有无线收发功能的设备或可设置于该设备的芯片。终端设备也可以称为用户设备(user equipment,UE)、终端、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、用户代理或用户装置,可以应用于4G、5G甚至6G***。本申请的实施例中的终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、可穿戴设备、无人机、虚拟现实(virtual reality,VR)终端、设备到设备(Device-to-Device,D2D)中的终端、车辆外联(vehicle-to-everything,V2X)中的车辆或车载设备、机器到机器(machine-to-machine,M2M)通信中的终端、物联网(Internet of Things)中的终端、增强现实(augmented reality,AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、前述的无线终端类型的RSU等等。
为了便于理解本申请公开的实施例,作以下两点说明。
(1)本申请公开的实施例中场景以无线通信网络中5G NR网络的场景为例进行说明,应当指出的是,本申请公开的实施例中的方案还可以应用于其他无线通信网络中,相应的名称也可以用其他无线通信网络中的对应功能的名称进行替代。
(2)本申请公开的实施例将围绕包括多个设备、组件、模块等的***来呈现本申请的各个方面、实施例或特征。应当理解和明白的是,各个***可以包括另外的设备、组件、模块等,并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外,还可以使用这些方案的组合。
随着无线通信标准的演进,从4G,5G到6G,无线通信支持的频率逐渐升高,从小于100GHz的厘米波和毫米波,到大于100GHz的毫米波,再到太赫兹,甚至到几百太赫兹的光通信。然而,随着频点的升高,路径损耗增大,从而导致发送端的覆盖降低。为保持具有一定程度的覆盖,需要降低路径损耗的影响。目前,一种方式是增加发送功率,但该方式受到设备尺寸、能量损耗和辐射指标的限制;另一种方式是增加天线个数,形成天线阵列,从而 获取波束成形增益。因为随着频率逐渐升高,波长变小,同样面积上可以容纳更多的天线个数,增加天线个数后再考虑模拟波束赋形,混合数字和模拟波束赋形可以进一步降低对射频链路的需求,因此波束赋形是5G和6G***一种基本的通信方式。
5G NR***中,接收端通过对同步信号块(synchronization signal block,SS block)进行波束扫描,来提高对每个同步信号块的覆盖。其中,多个不同波束的同步信号块构成一个同步信号块突发集合(burst set),该同步信号块突发集合在5ms的时间窗内传输。SS block burst set的传输周期可以配置为{5,10,20,40,80,160}ms中的一个值。因此,5G NR支持的最小同步波束扫描周期为5ms。发送端和接收端使用基于时分复用(time division multiplex,TDM)的波束扫描方式进行波束对齐。如图3所示,不同的子载波间隔对应SS burst set中不同的最大SS block个数,也即对应不同的最大波束个数。
不同的SS block进行时分复用传输,即在相同频域资源不同时域资源上传输不同的SS block,使得接收端需要在较长时间内才能扫描完所有的波束,从而导致接收端和发送端需要较长的波束对齐时间,进而导致接收端和发送端初始接入的时间较大。另外,对于下行链路(downlink,DL),当1个slot包含2个SS block,对应8个正交频分复用(orthogonal frequency division multiplex,OFDM)符号时,已占用60%的资源,考虑到还有上行链路(uplink,UL)或相反方向的符号以及下行间隙(down link gap,DL GAP)和上行间隙(up link gap,UL GAP)符号,则在slot内继续增加SS block会导致UL/或相反方向的可用资源受限。例如,如图3所示,子载波间隔为15KHz时,最大波束个数L=8,子载波间隔为120KHz时,最大波束个数L=64,可见额外增加用于传输SS block的slot会尤其受限。
另外,无线通信***中为进一步提升传输速率,可采用更多的频谱进行通信传输。当前低频***的可用频谱已经非常有限,6G将会考虑100GHz以上具有更大带宽的毫米波频谱,以及THz到几百THz的大带宽的太赫兹频谱进行太赫兹通信、光通信。
然而,在太赫兹、光通信等大带宽通信***中,会出现波束偏斜(beam squint)现象,即在同一个带宽范围内不同频率可能对应不同的波束。在波束扫描时,若不考虑该因素,同步信号或参考信号频率对应的波束可能无法反映整个***带宽内不同频率处的波束传输情况,从而导致终端设备无法检测到有效波束或错误的进行波束选择,进而加重接入时延,降低容量。而对于数据或控制波束传输,接收端需要获知不同频率对应的波束,以便在对应频率处接收对应的波束。
另外,5G NR的波束扫描机制在多跳***中,当跳内波束扫描以TDM方式进行时,不同跳间的同步块波束扫描也采用时分复用方式的情况下,会导致多跳***的波束扫描对齐周期很长,不利于快速的波束扫描对齐,即不利于快速初始接入和快速的波束链路发现和网络拓扑更新。
本申请实施例的应用场景包括低时延高可靠的通信场景。例如,应用场景为工厂,车联网,无人机等,也包括增强的移动宽带通信,大规模的机器类型通信,其通信***采用的频谱除了低频,也可以为高频频谱,如毫米波,太赫兹和光通信等需要基于波束成形的通信技术中的频谱。
本申请实施例的波束是指承载信道和/或信号传输的波束。本发明描述的波束传输也可以称为信号/候选信号/信道传输,如应用在初始接入的同步块的场景时,波束传输是指候选信号/信道传输。波束编号或波束标识也可以称为候选信号/信道的索引。
通信***中的资源,从频率上看被划分为若干个载波。通信***还可基于载波在频域资源上定义子带或带宽部分(bandwidth part,BWP),一个子带/一个BWP的带宽小于或等于 一个载波的带宽。因此,通信***可将一个载波划分为Z个带宽相同或带宽不相同的子带,或者将一个载波划分为Z个带宽相同或带宽不相同的BWP。另外,通信***还可基于载波在时频域上定义资源块(resource block,RB),一个RB中包含12个子载波,上述一个子带或一个BWP可包括多个RB。
本申请实施例提供了一种波束传输方法100。该波束传输方法100中,第一通信装置确定S个波束组的第一传输资源,然后根据第一传输资源向第二通信装置发送S个波束组。其中,S个波束组中的任一波束组为第一波束组,第一波束组包括承载一个信道和/或信号的L个波束,L个波束占用N1个频域资源,每个频域资源对应L/N1个时域资源,S为正整数;L为大于或等于2的正整数,且L可以被N1整除,N1为小于或等于L的正整数。第一通信装置发送的S个波束组中的任一波束组占用的时频资源是时频复用或者频分复用的,可支持不同带宽需求的第二通信装置,从而有利于支持大带宽的第二通信装置在多个频域资源上同时完成对多个波束的接收,进而有利于缩短波束对齐的时间。
本申请实施例中,第二通信装置还可向第一通信装置反馈上述S个波束组对应的信号和/或信道的测量结果,从而使得第一通信装置根据该测量结果,与第二通信装置进行波束对齐。该实施方式可详细参见波束传输方法200。
另外,第一通信装置还可根据第四通信装置支持的带宽能力,确定向第四通信装置发送的K个波束的第二传输资源,并根据第二传输资源向第二发送该K个波束。其中,K为大于或等于2的正整数,第二传输资源占用N3个频域资源,N3个频域资源中的每个频域资源对应K/N3个时域资源,N3为小于或等于K的正整数,K被N3整除。也就是说,第一通信装置是根据第四通信装置支持的带宽能力,确定K个波束的第二传输资源,那么第四通信装置便可在本设备支持的带宽能力上快速完成对K个波束的接收,有利于缩短与第一通信装置进行波束对齐的时间。
本申请实施例提供一种波束传输方法100。图4是该波束传输方法100的交互示意图。该波束传输方法100从第一通信装置与第二通信装置之间交互的角度进行阐述。该波束传输方法100包括但不限于以下步骤:
S101.第一通信装置确定S个波束组的第一传输资源;S个波束组中的任一波束组为第一波束组,第一波束组包括承载一个信道和/或信号的L个波束,L个波束占用N1个频域资源,每个频域资源对应L/N1个时域资源,S为正整数,L为大于或等于2的正整数,N1为小于或等于L的正整数。
其中,第一传输资源可以是第一通信装置配置的,也可以是第一通信装置和第二通信装置进行预定义的。不同波束组占用不同的时频资源。L是能被N1整除的正整数。
另外,时域资源可以是1个或多个OFDM符号。信道和/或信号可以是以下一种或多种:同步信号、参考信号、发现信号、广播信道、数据信道、控制信道。发现信号是第一通信装置和第二通信装置之间用于链路发现的信号。
时域资源可以是包含同步信号的OFDM符号,或既包含同步信号又包含广播信道和其参考信号的OFDM符号,如时域资源是包含4个OFDM符号的同步信号块。相应地,每个频域资源可传输同步信号,或传输既包含同步信号又包含广播信道和其参考信号的信号。一个信号和/或信道的波束传输也可以是同步信号和/或数据信道的波束传输。
可见,第一通信装置确定了S个波束组的第一传输资源,其中任一波束组包括承载一个信道和/或信号的L个波束,L为波束的最大个数或者为可配置的波束个数。针对该L个波束, 第一通信装置在每个时域资源对应的频域上配置N1个频域资源,该N1个频域资源用于N1个波束的传输,以及每个频域资源上配置了L/N1个时域资源,该L/N1个时域资源用于L/N1个波束的传输。也就是说,N1个频域资源和每个频域资源上的L/N1个时域资源组成的L个时频资源用于传输该L个波束,也即每相邻的L/N1个时域资源上的频域资源可传输L个波束。
另外,对于高频通信***传输,例如毫米波,太赫兹,光通信,其通信距离相对较短,通信双方的信道往往表现为稀疏散射信道,比如很多情况是视距通信。因此除了位于同一个载波的频率资源,以及同一个频带内的不同载波,甚至位于不同频带的不同载波的传播路径也会相似,因此可以对多载波的波束扫描作针对性的优化。即在一个频率或频段上某个方向的波束传输的测量结果可以作为另一个频率或频段上同样方向上进行波束传输测量结果的参考。也可以说他们具有相同或类似的主要能量波束方向,或者说这些频率或频段的信号传输具有相同的准共址(quasi co-location,QCL)关系。
其中,QCL关系通常包括{平均时延,时延扩展,多普勒偏移,多普勒扩展,空间接收参数},网络设备通常对2次信号传输来定义QCL关系,如对同步信号和参考信号定义它们的QCL关系。QCL关系的定义有利于第二通信装置根据一个信号的传输接收简化另一个信号的传输接收。例如,同步信号和参考信号传输关于空间接收参数具有QCL关系,即同步信号和参考信号具有相同的QCL类型D,那么意味着第二通信装置使用相同的空间接收参数接收同步信号和参考信号,比如第二通信装置采用相同的空间接收角度对同步信号和参考信号进行接收。
以使用同步信号进行波束扫描辅助进行波束选择为例,发送设备在载波1的波束方向1发送标识为1的波束,在载波2波束的方向2发送波束标识为2的波束,第二通信装置使用自身波束进行匹配,测量载波2的波束方向2波束2的测量结果高于指定门限,而载波1的波束方向1波束1低于指定门限,第一通信装置根据第二通信装置反馈的测量结果,确定波束2的方向为具有较好信道接收质量的波束方向,并应用在载波1上。这样,载波1不需要进行全部波束方向的扫描传输,可以借助其他载波的波束传输进行不同方向的波束质量测量,从而确定本载波的有效波束传输方向,进而可降低时延,并提高***资源使用效率。
因此,一种可选的实施方式中,每相邻的L/N1个时域资源传输的L个波束为不同方向的波束,即第一通信装置发送的L个波束是一个信道和/或信号的不同方向的波束,从而使得承载波束的载波或频段可遍历不同方向的波束。例如,如图5所示,波束组#0-波束组#3均包括8个波束,每个波束组中的8个波束均是一个信道和/或信号上8个方向的波束。
另一种可选的实施方式中,每相邻的L/N1个时域资源传输的L个波束为具有不同QCL关系的波束。
一种可选的实施方式中,S等于1,N1为大于或等于2的正整数。也就是说,第一通信装置在只确定一个波束组的第一传输资源时,该波束组包括的L个波束至少占用两个频域资源,而不再是只占用一个频域资源,从而有利于支持大带宽的第二通信装置在不同的时域资源和频域资源快速完成对L个波束的接收,进而有利于缩短与第一通信装置对齐波束的时间。
一种可选的实施方式中,波束组的个数为多个时,不同波束组包括的波束个数相同,即第一通信装置发送的每个波束组均是一个信道或信号的L个波束,但不同波束组对应的L个波束仍占用不同的时频资源。
又一种可选的实施方式中,波束组的个数为多个时,不同波束组包括的波束个数不相同,即第一通信装置发送的每个波束组可以是一个信道或信号的不同个波束。例如,波束组包括 波束组#0、波束组#1、波束组#2。波束组#0包括L1个波束,波束组#1包括L2个波束,波束组#2包括L3个波束。
一种可选的实施方式中,第二通信装置支持大带宽的数据传输时,上述L个波束占用的N1个频域资源可承载在N1个载波上,即一个频域资源承载在一个载波上,或者N1个频域资源可承载在大于一个载波的N1个子带上,或大于一个载波的N1个BWP上。
另一种可选的实施方式中,第二通信装置只支持相对窄带宽的数据传输时,上述N1个频域资源可承载在一个载波上,即N1个频域资源承载在一个载波的N1个子带上,或者,N1个频域资源承载在一个载波的N1个BWP上。
可选的,第一通信装置可根据第二通信装置支持的最大带宽能力,确定N1个频域资源占用的频域资源大小,从而可使得第二通信装置在本第二通信装置支持的最大带宽能力范围内接收L个波束,有利于快速完成对L个波束的接收。
一种可选的实施方式中,当上述N1等于1时,第一波束组的传输资源占用一个频域资源和L个时域资源,即该第一波束组内的L个波束的传输资源位于同频域不同时域。也就是说,一个频域资源上的L个时域资源用于传输承载一个信道和/或信号的L个波束。该实施方式可使得只支持窄带宽的第二通信装置根据时分复用的方式在一个频域资源的L个时域资源上完成对L个波束的接收。
一种可选的实施方式中,上述N1个频域资源对应的时域资源相同。也就是说,L个波束占用的N1个频域资源在相同的时域资源上,从而有利于第一通信装置在集中的时频资源上进行L个波束的传输,进而有利于第二通信装置在短时间内完成对L个波束的接收,有利于减少与第一通信装置进行波束对齐的时间。
例如,第一波束组包括8个波束,即L等于8。第一通信装置确定该第一波束组的第一传输资源如图6所示,该8个波束占用4个频域资源,即N1等于4。可见,该8个波束占用的4个频域资源为f0-f3,每个频域资源占用的2个时域资源均为t0和t1,即每个频域资源对应的时域资源是相同的,从而使得支持f0-f3的第二通信装置可在t1上就完成对L个波束的扫描,可缩短第二通信装置和第一通信装置进行波束对齐的时间。
另一种可选的实施方式中,N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值,N2小于或等于N1。该偏移值可以是第一通信装置配置的,也可以是第一通信装置与第二通信装置预定义的。也就是说,N1个频域资源中的部分频域资源在不同的时域资源上,可降低第一通信装置在相同的时域资源上发送多个波束的要求,或者可降低第二通信装置在相同的时域资源上接收多个波束的要求。
例如,第一波束组包括8个波束,即L等于8,该第一波束组的第一传输资源如图7所示。可见,该8个波束占用4个频域资源为f0-f3,即N1等于4,且频域资源f0、f1均占用时域资源t0和t1,频域资源f2、f3均占用时域资源t2和t3,4个频域资源的每两个频域资源对应不同的时域资源,即频域资源f0、f1和频域资源f2、f3对应的时域资源存在一个偏置,该偏置为2个时域资源。图7所示的第一波束组适用于在同一时域资源上支持发送/接收两个波束的第一通信装置/第二通信装置。
一种可选的实施方式中,S大于1时,S大于1时,S个波束组中至少两个波束组占用的时频资源部分重叠,或者S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,S1为小于S的正整数,S2为小于S的正整数。可选的,上述S1个波束组中的波束组和S2个波束组中的波束组互不相同。该方式有利于在部分或完全相同的时频资源上传输S个波束组,有利于节省资源开销,有利于兼顾高低带宽需求的第二通信装置,从而提高波束扫描速 度。例如,波束组#0和波束组#1的第一传输资源如图8a所示,波束组#0和波束组#1均包8个波束,波束组#0包括的8个波束占用频率资源f0-f3以及时域资源t0和t1,波束组#1包括的8个波束占用频率资源f0和f1以及时域资源t0-t3,即波束组#0和波束组#1占用的时频资源在时域资源t0、t1以及频域资源f0、f1是重叠的。
再例如,S个波束组包括的波束组#0-波束组#7的第一传输资源如图10所示。波束组#0-波束组#3(S1个波束组)中的每个波束组均占用2个时域资源和4个频域资源,比如,波束组#0占用时域资源t0和t1,以及占用频域资源f0-f3;波束组#4-波束组#7(S2个波束组)均占用8个时域资源和1个频域资源,比如,波束组#4占用时域资源t0-t7,以及占用频域资源f0。从图10可以看出,波束组#0-波束组#3与波束组#4-波束组#7占用的时频资源是互为重叠的。
该实施方式适用于支持具有不同带宽需求的第一通信装置或第二通信装置传输不同波束组时,不同波束组对应的部分或全部资源重叠。
另外,S大于1时,S个波束组占用的时频资源互为正交,该互为正交是指S个波束组占用的时频资源是不互相重叠的。例如,S个波束组包括的波束组#0-波束组#7的第一传输资源如图10所示。波束组#0占用时域资源t0和t1,以及频域资源f0-f3,波束组#1占用时域资源t2和t3,以及频域资源f0-f3。从图10中可以看出,波束组#0和波束组#1占用的时频资源是互为正交的。
S102.第一通信装置根据第一传输资源,发送S个波束组。
可理解的,第一通信装置在确定的各波束组对应的第一传输资源上,分别向第二通信装置发送对应的波束组,从而实现对S个波束组的发送。
一种可选的实施方式中,上述S个波束组是根据传输周期发送的,即第一通信装置根据传输周期和第一传输资源周期性发送该S个波束组。该传输周期可以是第一通信装置配置的,也可以是第一通信装置和第二通信装置预定义的。当传输周期是第一通信装置配置的时,该传输周期可以是和上述第一传输资源一起配置的,即传输周期和第一传输资源被第一通信装置配置在相同的配置信息中;可选的,该传输周期也可以是单独配置的,即传输周期和第一传输资源是被第一通信装置配置在不同的配置信息中。
一种可选的实施方式中,上述传输周期包括第一周期,或第一周期和默认周期。默认周期是指初始发送或无配置更新时S个波束组时的周期。
另一种可选的实施方式中,上述传输周期包括第一周期和第二周期,第二周期小于第一周期。即S个波束组是基于双周期发送的。
其中,第一周期可视为长周期,是S个波束组传输的周期;第二周期可视为短周期,该短周期为该S个波束组中的多个波束在第一周期内多次传输的时间间隔,第一周期也可指一个波束组或S个波束组的多个波束中每个波束的一个传输周期。S个波束组按照第一周期传输时,可减少第一通信装置的资源开销;S个波束组按照第二周期传输时,可使得第二通信装置快速完成对该多个波束的扫描接收。因此,S个波束组按照双周期进行多次传输时,有利于第二通信装置进行波束扫描时,可在资源开销和快速接入/快速波束扫描之间进行平衡。
例如,如图9a所示,第一波束组包括8个波束,该8个波束的传输周期包括第一周期T1和第二周期T0,T0小于T1。4个波束组中的8个波束在T0个时域资源内每间隔T0个时域资源发送一次,且4个波束组每间隔T1个时域资源发送一次。
可选的,第一周期也可指一个波束组或S个波束组的多个波束中每个波束的一个传输周期。例如,第一周期是指图11a中占用时域资源t0和频域资源f0-f7的波束组、占用时域资 源t0-t1和频域资源f0-f3的波束组、占用时域资源t0-t3和频域资源f0-f1、占用时域资源t0-t7和频域资源f0的波束组中的每个波束的传输周期。
又一种可选的实施方式中,该传输周期包括第一周期以及多个第二周期,第二周期小于第一周期,每个第二周期的值不相同。也就是说,S个波束组是基于多周期发送的。例如,该传输周期包括一个第一周期和两个第二周期。第一周期可视为长周期,是S个波束组多次传输的周期;两个第二周期可视为短周期,每个第二周期分别对应在一个长周期内L个波束多次传输的时间间隔。
可理解的,第一通信装置可针对一个或多个第二通信装置,配置多个波束的双周期;也可针对多个第二通信装置,配置多个波束的不同双周期。
一种可选的实施方式中,第一通信装置可为具有相同时域资源或频域资源个数的多个波束配置双周期,为具有不同时域资源或频域资源个数的多个波束配置多周期。也就是说,具有相同时域资源或频域资源个数的多个波束只具有一个第二周期,而具有不同时域资源或频域资源个数的多个波束具有不同的第二周期,其不同波束组的传输间隔可以是不相同的。例如,如图9a所示的4个波束组具有相同的时域资源个数和频域资源个数,那么每个波束组的第二周期是相同的。再例如,如图9b所示,占用时域资源t0-t3和频域资源f0、f2的波束组#0,以及占用时域资源t0-t7和频域资源f0的波束组#1,他们占用的时域资源个数和频域资源个数不相同,那么第一通信装置可为波束组#0和波束组#1配置不同的第二周期,比如,第一通信装置为波束组#0配置第二周期为4个时域资源,为波束组#1配置第二周期为8个时域资源。
另外,在多个波束被配置有双周期或多周期时,第一通信装置根据不同周期发送多个波束时,在时域和/或频域资源上可以部分或全部重合。
第一通信装置根据上述第一周期发送S个波束组时,第一周期内的S个波束组中至少两个波束组占用的时频资源部分重叠,或者S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠。例如,如图8a所示,第一周期为大于或等于t0+t1+t2+t3的值,则第一通信装置在t0-t3内发送波束组#0和波束组#1时,其波束组#0和波束组#1占用的时频资源是部分重叠的。
另一种可选的实施方式中,S个波束组是根据非周期传输的传输时间或候选传输时间发送的。非周期的传输时间是指确定的非周期传输S个波束组的时间,即在哪个时域资源上发送该S个波束组。若第一通信装置根据该非周期传输的传输时间发送S个波束组,则第一通信装置是在该传输时间上发送S个波束组。非周期传输的候选传输时间是指非周期传输一个或多个波束的候选传输时间,即第一通信装置可在哪些时域资源上发送S个波束组。若第一通信装置根据非周期传输的候选传输时间发送S个波束组,则第一通信装置可在该候选传输时间中选择某些候选时间发送S个波束组,即可不在候选传输时间中的所有时间上发送S个波束组,对应地,此时第二通信装置不确定第一通信装置在具体哪个候选时间上发送S个波束组,因此,第一第一通信装置采用盲检方式接收S个波束组。
可理解的,非周期传输的传输时间或候选传输时间为周期发送S个波束组的开始时间,即非周期传输S个波束组的传输仍可落在周期传输S个波束组的间隔时间内,即第一通信装置在周期发送S个波束组的间隔时间内可非周期发送该S个波束组。例如,第一通信装置每隔5S发送一次S个波束组,那么第一通信装置也可在该5s内发送一次S个波束组。
或者,非周期传输的传输时间或候选传输时间为周期发送S个波束组的开始时间偏置第一数值后的时间,即非周期传输的S个波束组的候选传输时间与配置的周期传输的周期相同,但是在时间上具有偏置,且该偏置可以由第一通信装置通过信令配置。
再或者,该非周期传输的传输时间或候选传输时间为第三通信装置指示的时间,例如,第三通信装置向第一通信装置发送一个信令,该信令用于触发S个波束组波束的非周期传输,且还可直接或隐含指示非周期传输S个波束组的传输时间或候选传输时间。从而,第一通信装置按照第三通信装置指示的时间非周期发送S个波束组时,可缩短多跳***中第一通信装置和第二通信装置波束对齐的时间。其中,第三通信装置可以是协助第一通信装置与第二通信装置进行通信的设备,即与第一通信装置和第二通信装置进行合作的合作节点。例如,第三通信装置可以是第一通信装置与第二通信装置之间的中继节点,第一通信装置将信息传输至中继节点,中继节点再将信息传输至第二通信装置,从而实现第一通信装置和第二通信装置之间的通信。
第一通信装置根据非周期传输S个波束组时,非周期传输的S个波束组中至少两个波束组占用的时频资源部分重叠,或者S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠。例如,如图8a所示,第一通信装置非周期传输波束组#0和波束组#1是在t0的时域资源上开始发送波束组#0和波束组#1,其波束组#0和波束组#1占用的时频资源是部分重叠的。
目前,同步信号的多波束传输是周期性传输的。当周期较小时,有利于第二通信装置时刻与第一通信装置保持同步,但是由于短时间对S个波束组的不断发送,会造成资源消耗较大;而当周期较大时,虽然可节省资源开销,但该方式会增大第二通信装置的同步时长。因此第一通信装置根据非周期的传输时间或候选传输时间对S个波束组进行发送的方式,可缓解上述较大周期传输的S个波束组的同步时间长的问题,以及较短周期传输S个波束组的资源开销大的问题。
另外,第一通信装置也可根据需要在某时间上非周期发送S个波束组,或者在不与其他信道和/或信号的发送时间冲突的时间上非周期发送S个波束组,此时S个波束组的非周期传输具有更大的灵活性,从而可缩短波束对齐的时间。例如,第一通信装置随同数据信道一起非周期发送S个波束组。
S103.第二通信装置确定S个波束组的第一传输资源。
S104.第二通信装置根据第一传输资源,接收S个波束组。
本申请实施例不限定S103和S101、S102的执行顺序。也就是说,S103可在S101和S102之前执行,或者S103可在S101之后,S102之前执行。
另外,为区分每个波束组中各个不同的波束,网络设备需要对每个波束进行波束编号,使得每个波束均对应一个波束编号。以下针对上述S个波束组,阐述各波束组内和各波束组之间波束编号的多种实施方式:
一种可选的实施方式中,每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系,M为每个波束组内的波束个数。
其中,不同时域上波束的波束编号可指占用一个频域资源和该频域资源对应的不同时域资源上波束的波束编号,也可指占用不同时域资源以及每个时域资源对应的多个频域资源上波束的波束编号;不同频域上波束的波束编号可指占用一个时域资源和该时域资源对应的不同频域资源上波束的波束编号,也可指占用不同频域资源以及每个频域资源对应的多个时域资源上波束的波束编号。
例如,如图10所示,波束组#1在频域资源f0上的2个波束的波束编号具有移位的关系,波束组#1在时域资源t2上、频域资源f0-f3上的4个波束的波束编号和在时域资源t3、频域资源f0-f3上的4个波束的波束编号具有移位的关系。
再例如,如图10所示,波束组#1在时域资源t2上的4个波束的波束编号具有移位的关系,波束组#1在频域资源f0上的2个波束的波束编号和在频域资源f1上的2个波束的波束编号具有移位的关系。
另外,移位的关系除了指上述图10中描述的移位关系,也可指循环移位的关系。也就是说,当一个波束组内当前波束的波束编号等于该波束组的波束个数减1时,下一个波束的波束编号是在当前波束的波束编号上进行循环移位进行编号的。例如,如图14所示,对于占用频域资源f2和时域资源t0-t7的波束组,其占用时域资源t4和频域资源f2上波束的波束编号相对于占用时域资源t3和频域资源f2上波束的波束编号具有循环移位的关系。
每个波束组内的波束编号可按照先时域后频域或先频域后时域的顺序进行编号,获得不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到k-1范围内具有移位的关系。即对于每个波束组而言,先对波束组内一个频域资源上的不同时域资源上的波束进行编号,再依次对波束组内不同频域资源上的不同时域资源上的波束进行编号,或者先对波束组内一个时域资源上的不同频域资源上的波束进行编号,再依次对波束组内不同频域资源上的不同时域资源上的波束进行编号。也就是说,对于每个波束组而言,其波束的波束编号具有先时域后频域的顺序关系,或者具有先频域后时域的顺序关系。
比如,每个波束组包括的波束均为L个,则每个波束组内的波束编号均是在0到L-1范围内进行循环选取的,不同的波束编号代表着不同方向的波束或具有不同QCL关系的波束。
例如,第一通信装置确定的S个波束组的第一传输资源如图10所示,S个波束组包括波束组#0、波束组#1、波束组#2以及波束组#3,波束组#0、波束组#1、波束组#2以及波束组#3均包括8个波束。从图10中可以看出,每个波束组内的波束编号是在0到7范围内,按照先时域后频域的顺序进行编号的。
每个波束组内的波束编号按照先时域后频域进行波束编号的实施方式,可以使得该波束组向后向兼容的可能性更大,即兼容当前或之前***的UE的同步接入,尤其针对含只有时分复用的波束组(即占用一个频域资源,占用多个时域资源的波束组),比如当前的6G***兼容支持5G的UE的同步接入。
另外,当N1等于1时,波束组的波束编号是按照频域顺序编号,即在一个时域资源对应的多个频域资源上,按照频域顺序对多个波束进行编号。
另一种可选的实施方式中,每个波束组内的波束编号可根据波束子组的波束编号进行编号,获得波束子组的波束编号之间在0到M-1范围内具有移位的关系。波束子组可以为一个频率单元对应的L/N1个时域单元或一个时域单元对应的N1个频率单元。也就是说,每个波束组内的波束子组的波束编号之间在时域或频域上具有移位的关系。例如,如图10所示,波束子组为占用时域资源t0-t7,以及频域资源f0的波束组#4,则波束组#5-波束组#7的波束编号与波束组#4的波束编号具有移位的关系。
可选的,波束子组还可以是不同波束组的重叠部分。例如,波束子组是图11a中占用阴影部分资源的波束组,即是占用时域资源t0-t7,以及频域资源f0的波束组和占用时域资源t0-t3,以及占用频域资源f0和f1的波束组的重叠部分。再例如,波束子组是图11b中占用阴影部分的波束组,即是占用时域资源t0和t1,以及频域资源f0-f3的波束组与占用时域资源t0,以及频域资源f0-f7的波束组的重叠部分。再例如,波束子组是图11c中占用阴影部分的 波束组,即是占用时域资源t0-t3,以及频域资源f0、f1的波束组和占用时域资源t0、t1,以及频域资源f0-f3的波束组的重叠部分。
上述图11a-图11c中,波束组的其他波束编号与上述波束子组的波束编号具有移位的关系。比如,图11a中,占用时域资源t0-t3和频域资源f0、f1的波束组中占用频域资源f1的4个波束的波束编号,与阴影部分的波束子组的波束编号具有移位的关系。
另一种可选的实施方式中,每个波束组内的波束编号是根据参考波束组确定的,参考波束组是N1个频域资源中的一个频域资源上的L个波束组成的波束组。可见,第一通信装置可确定一个频率上传输的L个波束作为参考波束组,其波束编号为参考波束编号。也就是说,参考波束组包括一个频域上L个时域资源传输的L个波束。这样,其他频率上的波束的编号可相对于参考频率分别存在一个偏置。也就是说,每个波束组内的波束编号相对于参考波束的波束编号存在一个偏置值。
例如,如图10所示,第一通信装置确定的参考波束组为占用频域资源f0和时域资源t0-t7上的8个波束,该8个波束的波束编号为0到7。那么,频域资源f1上的7个波束中每个波束的波束编号均相对f0上的参考波束组中波束的编号偏置2,频域资源f2上的7个波束中每个波束的波束编号均相对f0上的参考波束组中波束的编号偏置4,频域资源f3上的7个波束中每个波束的波束编号均相对f0上的参考波束组中波束的编号偏置6。
可选的,上述参考波束组是大于一个频域资源且小于N1个频域资源上的S个波束组成的波束组。例如,参考波束组是图10中的波束组#0,那么波束组#1的波束编号是参考波束组#0的波束编号进行编号的,比如,波束组#1在时域资源t2对应的不同频域资源上的波束编号分别相对于波束组#0在时域资源t0上的波束编号偏置2。
一种可选的实施方式中,在第一波束组内,每个频域资源对应的L/N1个波束的编号是按照时间顺序在0到L-1范围内进行循环选取编号的,即每个频域资源对应的L/N1个波束的波束编号在0到L-1范围内具有循环的关系。N1个频率资源对应的长为L/N1的时域资源上的波束编号序列为0到L-1范围内的正交子集,或N1个频率资源对应的长为L/N1的时域资源上的波束序列编号互不相同或在0~L-1范围内的编号内互为补充。也就是说,同一个频率资源的不同时域资源上的波束编号可取0~L-1范围的部分或全部。不同频率资源在同一个开始时域资源上可对应不同的波束编号。例如,如图10所示,第一波束组为波束组#0,波束组#0在每个频域资源上的2个波束的编号是按照时间顺序在0到7的范围内循环选取编号的。
一种可选的实施方式中,在第一波束组内,每个时域资源对应的N1个波束的波束编号是按照频域顺序在0到L-1范围内等间隔编号的,即每个时域资源对应的N1个波束的波束编号在0到L-1范围内具有循环的关系。不同时域资源对应的N1个频域资源上波束的编号序列为0~L-1范围内的正交子集,或L/N1个时域资源对应的波束编号互不相同或在0到L-1范围内的编号内互为补充。也就是说,在同一个时域资源上不同频域资源承载的波束的编号是连续或等间隔的。例如,如图10中的波束组#0所示,其时域资源t0上的频域资源的波束编号为0、2、4、6,时域资源t1上的频域资源的波束编号为1、3、5、7,即每个时域资源对应4个频域资源的波束编号是以间隔为2进行等间隔编号的。
一种可选的实施方式中,当S个波束组占用的时频资源部分重叠时,不同波束组对应时频资源重叠部分的波束编号相同,时频资源非重叠部分对应的波束编号为重叠部分的波束编号在0~L-1范围内的互补性循环移位。例如,如图8a所示,图8a中的波束组#0和波束组#1中非重叠部分的波束编号为重叠部分循环移位4个编号。另外,图8a中波束组#0的波束编号为先时域后频域,波束组#1的波束编号是先对波束子组#1(编号0-3)内先时域再频域进 行编号,依照次序再波束子组#2(编号4-7)先时域后频域进行编号。其中波束组#0也可以称为参考波束组,此时波束组#1是参考波束组#0进行互补性编号。
另一种可选的实施方式中,当S个波束组占用的时频资源部分重叠时,第一通信装置通过信令通知第二通信装置各组的波束编号方法或根据时频资源预定义波束编号。例如,波束组#0和波束组#1占用的时频资源部分重叠,第一通信装置通过信令告知给第二通信装置其波束组#0和波束组#1的波束编号如图8b所示,即先对波束组#1按照先时域后频域的顺序进行编号,再根据重叠的时频资源部分的波束编号,对波束组#0中未重叠的部分进行波束编号,其编号规则是在重叠的波束上移位两个值。
一种可选的实施方式中,各个波束组的时域资源或频域资源个数相同,但每个波束组的时频位置不相同。例如,如图12所示,4个波束组分别为波束组#0、波束组#1、波束组#2以及波束组#3,图13为该4个波束组中每个波束组对应的波束方向。波束组#0占用t0-t1的时域资源,以及f0-f3的频域资源;波束组#1占用t2-t3的时域资源,以及f0-f3的频域资源;波束组#2占用t4-t5的时域资源,以及f0-f3的频域资源;波束组#3占用t6-t7的时域资源,以及f0-f3的频域资源。可见,每个波束组的时域资源个数均为2个,每个波束组的频域资源个数均为4个。
该实施方式下,波束组内的编号可参见上述的编号方式,即各波束组内按照先时域后频域的顺序进行波束编号。可选的,波束组内可按照先频域后时域的顺序进行波束编号。不同波束组间按照资源的顺序进行循环移位的方式进行编号,即不同波束组间的波束编号具有循环移位的关系。可理解的,不同波束组间的波束编号具有循环移位的关系,尤其是指在时域资源上的波束和/或频域资源上的波束编号均具有循环移位的关系。
例如,当第一通信装置确定了两个波束组的第一传输资源,且每个波束组均包括L个波束时,每个波束组内的波束编号可以按照同时域不同频域,等间隔按照{2n}或{2n+1}在0到L-1范围内进行循环编号。每个波束组间,从开始时间t0开始,按照同频不同时域,按照{2n,2n+1}在0到L-1范围内进行循环编号。每个波束组的组编号可按照时域或频域顺序(即先时域后频域后者先频域后时域),每L个波束一组,在0到N-1范围内编号。
例如,如图12所示,各波束组内的波束编号是按照先时域后频域的顺序进行编号的,波束组#1的波束编号是在波束组#0的波束编号上进行循环移位编号的,波束组#2的波束编号是在波束组#1的波束编号上进行循环移位编号的,波束组#3的波束编号是在波束组#2的波束编号上进行循环移位编号的。
另一种可选的实施方式中,各个波束组的时域资源或频域资源个数不相同。例如,如图13所示,波束组包括波束组#0和波束组#1,波束组#0占用时域资源t0-t7以及频域资源f0。波束组#1占用时域资t0~t3以及频域资源f0和f2。该实施方式下,第一通信装置可分别定义不同波束组内时频资源和时频资源对应的波束编号。可对波束组进行子组划分,波束子组如上述所述。各波束子组内可按照先时域后频域的顺序进行波束编号或先频域后时域的顺序进行波束编号。不同波束子组间具有波束编号循环移位的特点。各个波束组间可以按时域或频率顺序(如先频率后时域,或先时域后频率)进行组编号。
例如,图14中的波束组#1包括波束子组#0和波束子组#1,波束子组#0是占用时域资源t0~t3以及频域资源f0的波束子组,波束子组#1是占用时域资源t0~t3以及频域资源f2的波束子组。可见,波束子组#0和波束子组#1内是分别按照时域顺序进行编号的,波束子组#0和波束子组#1间的波束编号具有循环移位的关系。
图14所示的波束组,支持不同带宽的第二通信装置可在不同的时域资源内完成对波束的接收。例如,第二通信装置#1是带宽类型1的窄带需求或能力第二通信装置,其波束组对应时频资源为频率f0,时域资源为t0~t7。其在频率f0,时间范围t0~t7完成完整的L个波束扫描传输。第二通信装置#2是对应带宽类型2的带宽需求或能力略强的第二通信装置,波束组对应频率f0和f2,时域资源为t0~t3,和t4~t7。其在时间t0~t7完成了2次完整的波束扫描。
另外,对于任一波束组,当N1个频率资源中每个频率资源传输的波束占用不同的时域资源,或部分占用相同的时域资源时,一个波束组内可按照先时域后频域,也可以按照先频域后时域的顺序进行波束编号。
例如,如图15所示,第一波束组包括8个波束,该8个波束占用2个频域资源,即N1=2,占用4个时域资源,即L/N1=4,且两个频域资源中每个频域资源传输的波束均不再同一时域资源上,在时间上互相之间有一个偏移值,该偏移值为1。该情况下,第一波束组内的波束编号是按照先时域后频域的顺序在0到7的范围内进行编号的。
再例如,如图16所述,第一波束组内的波束编号是按照先频域后时域的顺序在0到7的范围内进行编号的。
对于S个波束组,各个波束组内按照波束与时频资源的对应关系,波束的编号或与上述实施方式相同,优先按照先时域后频域的顺序对多个波束进行编号。具有相同时域或频域资源个数的波束组在按照资源顺序进行波束编号时具有循环移位的特点。
例如,如图17所示,两个波束组包括波束组#0和波束组#1,频域资源f0上的波束编号0到7构成波束组#0,频域资源f2上的波束编号4到3构成波束组#1。可见,该两个波束组的时频资源在开始时间上存在偏移值2,且两个波束组的波束编号具有循环移位的关系。该两个波束组可支持带宽需求较低的第二通信装置进行波束的接收。例如,波束组#0和波束组#1适用于支持两个频域资源的第二通信装置对该两个波束组进行接收。另外,该实施方式中,一个时域资源上只传输一个波束,可适用于收发能力不佳的第二通信装置。
再例如,如图18所示,第一通信装置确定的4个波束组分别为波束组#0、波束组#1、波束组#2、波束组#3。波束组#0占用时域资源t0-t3,占用频域资源f0-f3,且t0和t1上的时域资源只占用频域资源f0和f1,t2和t3上的时域资源只占用频域资源f2和f3;同样的,对于波束组#1、波束组#2、波束组#3而言,每两个时域资源只占用两个频域资源。该实施方式适合支持大带宽的第二通信装置,但在同一时域资源上接收多个波束的能力不佳的第二通信装置。
再例如,如图19所示,第一通信装置确定的2个波束组分别为波束组#0、波束组#1。波束组#0占用频域资源f0和f2,且分别占用时域资源t0、t1、t4、t5和t2、t3、t6、t7;波束组#1占用频域资源f0和f2,且分别占用时域资源t8、t9、t12、t13和t10、t11、t14、t15。可见,该两个波束组的内部频域资源对应的波束的开始时间存在偏移值,且该偏移值为2,波束编号是按照先时域后频域进行编号的。另外,不同波束组内按照相同的资源顺序,波束编号具有循环移位的关系。
上述图17-图19中给出的各个波束组的波束编号在所确定的整个资源范围内是统一的,即不同时间资源或频域资源的各个波束组的波束编号是统一的。这样,有利于第一通信装置通知不同的带宽需求能力的第二通信装置时,仍然保持整体波束编号的统一,既有利于第一通信装置的波束编号和资源管理,也有利于简化第二通信装置的处理包括带宽需求变化时波束组的切换。
本申请实施例中,上述波束的波束编号也可称为波束的标识(identification,ID),本申请实施例不做限定。
不同第二通信装置支持的带宽需求配置或能力可能不同。例如,有些第二通信装置出于成本、功耗、尺寸等考虑只支持窄带传输,有些第二通信装置即使硬件可以支持大的带宽,但是出于功耗考虑和业务的需求可以配置为窄带传输,有些第二通信装置可以支持较宽的带宽,以满足业务传输的需求。因此,有的第二通信装置只需或只能支持一个载波内几个RB的窄带传输,有的第二通信装置需要或可以支持一个载波带宽的传输,有的第二通信装置可能需要支持几个或多个载波带宽的传输。基于以上情况,一个信道和/或信号的多个波束传输需要支持不同带宽需求或能力第二通信装置的传输。
本申请实施例,S个波束组中的任一波束组包括的L个波束占用至少两个频域资源,支持具有不同带宽需求或能力的第二通信装置对L个波束进行接收,以便进行完整的波束扫描。也就是说,上述不同的波束分组在频域可以对应不同的带宽,在时域具有不同的时间单元。在不同波束组在时频域上,可以部分重合,也可以相互独立。
本申请实施例中,第一通信装置确定S个波束组的第一传输资源,然后根据第一传输资源向第二通信装置发送S个波束组。其中,S个波束组包括第一波束组,第一波束组包括承载一个信道和/或信号的L个波束,L个波束占用N1个频域资源,每个频域资源对应L/N1个时域资源,L为大于或等于2的正整数,N1为小于或等于L的正整数,L被N1整除。第一通信装置发送的S个波束组中的任一波束组占用的时频资源是时频复用或者频分复用的,可支持不同带宽需求的第二通信装置,即支持低带宽需求的第二通信装置按时分复用方式进行同频的波束扫描接收,支持大带宽需求的第二通信装置更加快速的按时频复用进行波束接收,即同时在不同频域监测扫描波束,从而可快速地按时频域进行多波束的完整周期扫描,进而可缩短波束对齐的时间。
本申请实施例还提供一种波束传输方法200,该波束传输方法200是在S104之后执行的。图20为波束传输方法200的交互示意图。该波束传输方法200包括但不限于:
S201.第二通信装置发送反馈信息,反馈信息包括S个波束组对应的信号和/或信道的测量结果。
其中,用于反馈该反馈信息的反馈资源可以是第一通信装置和第二通信装置双方预定义的,也可以是第一通信装置配置的。反馈资源可以是物理随机接入信道(physical random access channel,PRACH)资源,也可以是PRACH的有效载荷(payload),还可以是上行控制信道/数据信道/介质访问控制层(media access control,MAC)信息。
反馈资源可以是前导序列,或频域资源,或时域资源。
本申请实施例中,第二通信装置测量和反馈的波束个数和测量指标可以是预定义或配置的。另外,相同波束或相同波束编号共享反馈资源或只使用一个反馈资源时,其S个波束组对应的信号和/或信道的测量结果可以是指:S个波束组对应的信号和/或信道的测量结果的平均值,或最大值,或最小值,等等,本申请实施例不做限定。
可理解的,第二通信装置接收到S个波束组后,可向第一通信装置反馈关于S个波束组对应的信号和/或信道的测量结果,以便于第一通信装置和第二通信装置采用相同的波束进行信号或信道的传输,即第一通信装置和第二通信装置根据测量结果进行波束对齐。
一种可选的实施方式中,第二通信装置在第一周期内接收到S个波束组后,将第一周期内的S个波束组对应的信号和/或信道的测量结果同时反馈给第一通信装置,即反馈信息包括 第一周期内的S个波束组对应的信号和/或信道的测量结果。该实施方式中,所有波束组对应的信号和/或信道的测量结果可以以一个反馈信息的方式在一个反馈资源上进行反馈,所有波束组使用或共享一个反馈资源,可降低反馈资源的开销。可选的,所有波束组对应的信号和/或信道的测量结果以多个反馈信息的方式在多个反馈资源上进行反馈,可使得第一通信装置在不同的资源上获得不同的反馈信息。例如,如图21所示,第二通信装置在第一周期内接收到波束组#0和波束组#1后,将波束组#0和波束组#1对应的信号和/或信道的测量结果在反馈资源#0上反馈,即Ta时域资源上的波束组#0和Tb时域资源上的波束组#1对应的信号和/或信道的测量结果在Tb+kb的时域资源上反馈。
另一种可选的实施方式中,第二通信装置在第二周期内接收到一个波束组后,就进行该第二周期内的S个波束组对应的信号和/或信道的测量结果进行反馈,且每个波束组对应的反馈资源在下一个波束组的时域资源之前。也就是说,第二通信装置对每个第二周期内接收到的一个波束组对应的信号和/或信道的测量结果进行逐一反馈,即反馈信息包括第二周期内的S个波束组对应的信号和/或信道的测量结果。该情况下,反馈资源还可以与传输资源存在关联关系。例如,第一通信装置和第二通信装置按照波束传输的顺序,分别建立一个波束组与一个反馈资源的对应关系,且每个反馈资源位于对应的波束组的传输资源之后。该实施方式可使得第二通信装置在第二周期内接收到一个波束组后快速对该波束组内的波束进行测量和反馈,从而可降低反馈时延,进而加快波束对齐的时间。
例如,如图22所示,第二通信装置在第二周期内接收到波束组#0后,将波束组#0对应的信号和/或信道的测量结果在反馈资源#0上反馈,以及在另一个第二周期内接收到波束组#1后,将波束组#1对应的信号和/或信道的测量结果在反馈资源#1上反馈,即Ta时域资源上的波束组#0对应的信号和/或信道的测量结果在Ta+kb时域资源上反馈,Tb时域资源上的波束组#1对应的信号和/或信道的测量结果在Tb+kb时域资源上反馈。
上述两种实施方式中,第二通信装置均是对S个波束组进行周期反馈的,第一通信装置可以不需要额外的反馈配置指示给第二通信装置(比如触发反馈条件和反馈资源配置),第二通信装置到达周期时间时就对周期内接收到的波束组对应的信号和/或信道的测量结果进行反馈。
一种可选的实施方式中,反馈信息包括S个波束组对应的信号和/或信道的测量结果时,同一个波束或同一个编号的波束对应的信号和/或信道的测量结果对应一个反馈资源,不同波束组内相同的波束或相同编号波束对应的信号和/或信道的测量结果共享一个反馈资源。也就是说,第二通信装置反馈S个波束组对应的信号和/或信道的测量结果时,每个反馈资源用于反馈相同波束或相同编号的波束对应的信号和/或信道的测量结果。
例如,如图23所示,波束组#0、波束组#1、波束组#2以及波束组#3中波束编号为4的波束对应的信号和/或信道的测量结果共享反馈资源#4,即反馈资源#4用于反馈波束组#0、波束组#1、波束组#2以及波束组#3中波束编号为4的波束对应的信号和/或信道的测量结果。
一种可选的实施方式中,反馈信息包括S个波束组对应的信号和/或信道的测量结果时,具有相同开始时间和相同接收时间的波束组对应的信号和/或信道的测量结果共享一个反馈资源。该实施方式可在一个反馈资源上将该反馈资源之前具有相同开始时间和相同结束时间的波束组对应的信号和/或信道的测量结果全部进行反馈。例如,如图24所示,波束组#0和波束组#1具有相同的开始时间和相同的结束时间,那么采用反馈资源#0反馈波束组#0和波束组#1对应的信号和/或信道的测量结果。
另一种可选的实施方式中,反馈信息包括S个波束组对应的信号和/或信道的测量结果时,位于反馈资源之前的相同波束或相同波束编号的波束对应的信号和/或信道的测量结果共享一个反馈资源。该实施方式可使得第二通信装置采用一个反馈资源反馈该反馈资源之前的所有波束组对应的信号和/或信道的测量结果,可加快第二通信装置的反馈速度,从而有利于加快波束对齐的时间。
又一种可选的实施方式中,每个波束组内的波束是非周期性传输时,反馈信息包括非周期发送S个波束组时的S个波束组内的一个或多个波束的测量结果。该实施方式中,第二通信装置可按照需要在接收到一个或多个波束时,对该一个或多个波束对应的信号和/或信道的测量结果进行反馈,使得对信号和/或信道的测量结果的反馈更加灵活和及时。
又一种可选的实施方式中,反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。也就是说,第二通信装置反馈的S个波束组中,信道或信号的测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。该实施方式可使得第一通信装置快速确定测量结果最佳的波束,从而有利于缩短波束对齐的时间。
可选的,上述测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个或多个频域上。也就是说,第二通信装置可选择一个频域资源来反馈测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果,或者,选择多个频域来反馈测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。该一个频率可以指一个RB,或者指多个RB,本申请实施例不做限定。
当测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个频率上时,可节省反馈资源。在第一通信装置与第二通信装置之间的信道是互易时,第二通信装置可采用测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的频率来反馈该测量结果,此时每个频域上反馈的测量结果就是该频率对应的信号和/信道的测量结果,从而每个反馈信息无需额外携带频率信息,可减少反馈信息的信令量,进而可节省反馈资源。
又一种可选的实施方式中,反馈信息还可指示具有相同准共址QCL关系的波束对应的不同频域资源。也就是说,第二通信装置将具有相同准共址QCL关系的波束对应的不同频域资源以反馈信息的形式反馈给第一通信装置,使得第一通信装置通过反馈信息确定哪些频段的波束具有相同的QCL关系,哪些频率的波束具有不同的QCL关系,从而可使得第一通信装置后续根据该具有相同准共址QCL关系的波束对应的不同频域资源,在大带宽上配置不同波束的传输,进而避免大带宽通信时波束偏离导致不同频率对应不同的波束时无法检测到波速或错误进行波束选择的问题。
S202.第一通信装置接收反馈信息。
本申请实施例中,第二通信装置向第一通信装置反馈了S个波束组对应的信号和/或信道的测量结果,从而有利于第一通信装置根据该反馈的测量结果,确定和第一通信装置进行数据传输的最佳波束,即第一通信装置和第二通信装置进行波束对齐。
本申请实施例还提供一种波束传输方法300,图25为波束传输方法300的交互示意图。该波束传输方法300包括但不限于:
S301.第一通信装置确定向第四通信装置传输K个波束的第二传输资源;第二传输资源占用N3个频域资源,N3个频域资源中的每个频域资源对应K/N3个时域资源;N3为小于或等于K的正整数。
其中,K为能被N3整除的正整数。
S302.第一通信装置根据第二传输资源,向第四通信装置发送K个波束。
S303.第四通信装置确定接收K个波束的第二传输资源。
S304.第四通信装置根据第二传输资源,接收来自第一通信装置的K个波束。
本申请实施例中,第一通信装置确定了K个波束的第二传输资源,第二传输资源占用不同的时域资源和频域资源,从而第二通信装置可根据自身支持的带宽能力,在时频域接收该K个波束,而不是只能在一个频域资源的多个时域资源上接收K个波束,从而可缩短对K个波束完全接收的时间,从而有利于缩短波束对齐的时间。
可理解的,第一通信装置可为不同的第二通信装置配置不同波束的传输资源,或者第一通信装置和第二通信装置可双方预定义不同波束的传输资源。例如,第一通信装置给第二通信装置#1配置P个时域资源和Q个频率资源进行K个波束的传输;给第二通信装置#2配置R个时域资源和O个频率资源进行K个波束的传输。其中,P,Q,R,O为小于等于K的自然数。例如,需求或类型或能力1的第二通信装置#1按照同一个频率不同时间进行K个波束接收;需求或类型或能力2的第二通信装置#2按照同一个时间,不同频率进行K个波束接收;需求或类型或能力3的第二通信装置#3按照同一个时域资源不同频率或多个时域资源和多个频率资源进行K个波束的接收。类型或能力2的第二通信装置#2也可以按照同一个频率不同时域资源进行K个波束的接收。
为了实现上述本申请实施例提供的方法中的各功能,第一通信装置或第二通信装置可以包括硬件结构和/或软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行,取决于技术方案的特定应用和设计约束条件。
如图26所示,本申请实施例提供了一种通信装置2600。该通信装置2600可以是第一通信装置的部件(例如,集成电路,芯片等等),也可以是第二通信装置的部件(例如,集成电路,芯片等等)。该通信装置2600也可以是其他通信单元,用于实现本申请方法实施例中的方法。该通信装置2600可以包括:通信单元2601和处理单元2602。可选的,还可以包括存储单元2603。
在一种可能的设计中,如图26中的一个或者多个单元可能由一个或者多个处理器来实现,或者由一个或者多个处理器和存储器来实现;或者由一个或多个处理器和收发器实现;或者由一个或者多个处理器、存储器和收发器实现,本申请实施例对此不作限定。所述处理器、存储器、收发器可以单独设置,也可以集成。
所述通信装置2600具备实现本申请实施例描述的第一通信装置的功能,可选的,通信装置2600具备实现本申请实施例描述的第二通信装置的功能。比如,所述通信装置2600包括第一通信装置执行本申请实施例描述的第一通信装置涉及步骤所对应的模块或单元或手段(means),所述功能或单元或手段(means)可以通过软件实现,或者通过硬件实现,也可以通过硬件执行相应的软件实现,还可以通过软件和硬件结合的方式实现。详细可进一步参考前述对应方法实施例中的相应描述。
在一种可能的设计中,一种通信装置2600可包括:
处理单元2602,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用 N1个频域资源;每个频域资源对应L/N1个时域资源;S为正整数;所述L为大于或等于2的正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;
通信单元2601,用于根据所述第一传输资源,发送所述S个波束组。
一种可选的实现方式中,所述S等于1时,所述N1为大于或等于2的正整数。
一种可选的实现方式中,所述N1个频域资源对应的时域资源相同;或者,所述N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值,所述N2小于或等于所述N1。
一种可选的实现方式中,所述S个波束组是根据传输周期发送的;所述传输周期包括第一周期,或者,所述传输周期包括所述第一周期以及一个或多个第二周期,所述第二周期小于所述第一周期。
一种可选的实现方式中,所述S个波束组是根据非周期传输的传输时间或候选传输时间发送的。
一种可选的实现方式中,所述非周期传输的传输时间或候选传输时间是第三通信装置指示的。
一种可选的实现方式中,所述S个波束组中每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;所述M为所述每个波束组内的波束个数,所述M为正整数。
一种可选的实现方式中,当所述S个波束组中每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。
一种可选的实现方式中,通信单元2601还用于:接收反馈信息,所述反馈信息包括S个波束组对应的信号和/或信道的测量结果。
一种可选的实现方式中,所述S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
一种可选的实现方式中,所述反馈信息包括第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果;所述第一周期或所述第二周期是所述S个波束组的传输周期;或者,所述反馈信息包括非周期发送S个波束组时所述S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
一种可选的实现方式中,所述反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。
一种可选的实现方式中,所述测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个或多个频域上。
一种可选的实现方式中,所述反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。
一种可选的实现方式中,所述N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
一种可选的实现方式中,所述S大于1时,所述S个波束组中至少两个波束组占用的时频资源部分重叠,或者所述S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,所述S1小于所述S,所述S2小于所述S。
一种可选的实现方式中,处理单元2602还用于:确定向第四通信装置传输K个波束的第二传输资源;所述K为大于或等于2的正整数;所述第二传输资源占用N3个频域资源,所述N3个频域资源中的每个频域资源对应K/N3个时域资源;所述N3为小于或等于所述K的正整数;通信单元2601,还用于根据所述第二传输资源,向所述第四通信装置发送K个波束。
本申请实施例和上述所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述所示实施例的描述,不再赘述。
在另一种可能的设计中,一种通信装置2600可包括:
处理单元2602,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;所述S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;
通信单元2601,用于根据所述第一传输资源,接收所述S个波束组。
一种可选的实现方式中,所述S等于1,所述N1为大于或等于2的正整数。
一种可选的实现方式中,所述N1个频域资源对应的时域资源相同;或者,所述N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值,所述N2小于或等于所述N1。
一种可选的实现方式中,所述S个波束组是根据传输周期接收的;所述传输周期包括第一周期,或者,所述传输周期包括所述第一周期以及一个或多个第二周期,所述第二周期小于所述第一周期。
又一种可选的实施方式中,所述S个波束组是根据非周期传输的传输时间或候选传输时间接收的。
一种可选的实现方式中,所述非周期传输的传输时间或候选传输时间是第三通信装置指示的。
一种可选的实施方式中,所述S个波束组中的每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;所述M为所述每个波束组内的波束个数,所述M为正整数。
一种可选的实施方式中,当所述S个波束组中每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。
一种可选的实施方式中,通信单元2601,还用于:发送反馈信息,所述反馈信息包括S个波束组对应的信号和/或信道的测量结果。
一种可选的实施方式中,所述S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
一种可选的实施方式中,所述反馈信息包括第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果;所述第一周期或所述第二周期是所述S个波束组的传输周期;或者,所述反馈信息包括非周期发送S个波束组时所述S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
一种可选的实施方式中,所述反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。
一种可选的实施方式中,所述测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个或多个频域上。
一种可选的实施方式中,所述反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。
一种可选的实施方式中,在所述第一波束组内,所述每个频域资源对应的L/N1个波束的编号是按照时间顺序在0到L-1范围内进行循环选取编号的。
一种可选的实施方式中,所述L个波束为不同方向的波束,或为具有不同准共址QCL关系的波束。
一种可选的实施方式中,所述N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
一种可选的实施方式中,所述S大于1时,所述S个波束组中至少两个波束组占用的时频资源部分重叠,或者所述S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,所述S1小于所述S,所述S2小于所述S。
本申请实施例和上述所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述所示实施例的描述,不再赘述。
本申请实施例还提供一种通信装置2700,图27为通信装置2700的结构示意图。所述通信装置2700可以是第一通信装置或第二通信装置,也可以是支持第一通信装置实现上述方法的芯片、芯片***、或处理器等,还可以是支持第二通信装置实现上述方法的芯片、芯片***、或处理器等。该装置可用于实现上述方法实施例中描述的方法,具体可以参见上述方法实施例中的说明。
所述通信装置2700可以包括一个或多个处理器2701。所述处理器2701可以是通用处理器或者专用处理器等。例如可以是基带处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或中央处理器(Central Processing Unit,CPU)。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端、终端芯片,DU或CU等)进行控制,执行软件程序,处理软件程序的数据。
可选的,所述通信装置2700中可以包括一个或多个存储器2702,其上可以存有指令2704,所述指令可在所述处理器2701上被运行,使得所述通信装置2700执行上述方法实施例中描述的方法。可选的,所述存储器2702中还可以存储有数据。所述处理器2701和存储器2702可以单独设置,也可以集成在一起。
存储器2702可包括但不限于硬盘(hard disk drive,HDD)或固态硬盘(solid-state drive,SSD)等非易失性存储器,随机存储记忆体(Random Access Memory,RAM)、可擦除可编程只读存储器(Erasable Programmable ROM,EPROM)、只读存储器(Read-Only Memory,ROM)或便携式只读存储器(Compact Disc Read-Only Memory,CD-ROM)等等。
可选的,所述通信装置2700还可以包括收发器2705、天线2706。所述收发器2705可以称为收发单元、收发机、或收发电路等,用于实现收发功能。收发器2705可以包括接收器和发送器,接收器可以称为接收机或接收电路等,用于实现接收功能;发送器可以称为发送机或发送电路等,用于实现发送功能。
所述通信装置2700为第一通信装置:处理器2701用于执行波束传输方法100中的S101,以及执行波束传输方法300中的S301。收发器2705用于执行上述波束传输方法100中的S102, 以及用于执行波束传输方法200中的S202,以及用于执行波束传输方法300中的S302。
所述通信装置2700为第二通信装置:处理器2701用于执行波束传输方法100中的S103,以及用于执行波束传输方法300中的S303。收发器2705用于执行波束传输方法100中的S104,以及用于执行波束传输方法200中的S201,以及用于执行波束传输方法300中的S304。
另一种可能的设计中,处理器2701中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路,或者是接口,或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的,也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写,或者,上述收发电路、接口或接口电路可以用于信号的传输或传递。
又一种可能的设计中,可选的,处理器2701可以存有指令2703,指令2703在处理器2701上运行,可使得所述通信装置2700执行上述方法实施例中描述的方法。指令2703可能固化在处理器2701中,该种情况下,处理器2701可能由硬件实现。
又一种可能的设计中,通信装置2700可以包括电路,所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请实施例中描述的处理器和收发器可实现在集成电路(integrated circuit,IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit,ASIC)、印刷电路板(printed circuit board,PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造,例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor,NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(Bipolar Junction Transistor,BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是第一通信装置或第二通信装置,但本申请实施例中描述的通信装置的范围并不限于此,而且通信装置的结构可以不受图27的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是:
(1)独立的集成电路IC,或芯片,或,芯片***或子***;
(2)具有一个或多个IC的集合,可选的,该IC集合也可以包括用于存储数据,指令的存储部件;
(3)ASIC,例如调制解调器(modulator);
(4)可嵌入在其他设备内的模块;
(5)接收机、终端、智能终端、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等;
(6)其他等等。
对于通信装置可以是芯片或芯片***的情况,可参见图28所示的芯片的结构示意图。图28所示的芯片2800包括处理器2801和接口2802。其中,处理器2801的数量可以是一个或多个,接口2802的数量可以是多个。所述芯片2800还可包括存储器2803。
一种设计中,对于芯片用于实现本申请实施例中第一通信装置的功能的情况:
所述处理器2801,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;所述L为大于或等于2的正整数;S为正整数;所述N1为小于或等于所述L的正整数;
所述接口2802,用于根据所述第一传输资源,输出所述S个波束组。
另一种设计中,对于芯片用于实现本申请实施例中第二通信装置的功能的情况:
所述处理器2801,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述第一波束组为所述S个波束组中的任一波束组;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;
所述接口2802,用于根据所述第一传输资源,接收所述S个波束组。
本申请实施例中通信装置2700、芯片2800还可执行上述通信装置2600所述的实现方式。本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件,或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个***的设计要求。本领域技术人员可以对于每种特定的应用,可以使用各种方法实现所述的功能,但这种实现不应被理解为超出本申请实施例保护的范围。
本申请实施例和上述波束传输方法100至波束传输方法300所示方法实施例基于同一构思,其带来的技术效果也相同,具体原理请参照上述波束传输方法100至波束传输方法300所示实施例的描述,不再赘述。
本申请还提供了一种计算机可读存储介质,用于储存计算机软件指令,当所述指令被通信装置执行时,实现上述任一方法实施例的功能。
本申请还提供了一种计算机程序产品,用于储存计算机软件指令,当所述指令被通信装置执行时,实现上述任一方法实施例的功能。
本申请还提供了一种计算机程序,当其在计算机上运行时,实现上述任一方法实施例的功能。
上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机指令时,全部或部分地产生按照本申请实施例所述的交互或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state drive,SSD))等。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (81)
- 一种波束传输方法,其特征在于,所述方法包括:确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;所述S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;根据所述第一传输资源,发送所述S个波束组。
- 根据权利要求1所述的方法,其特征在于,所述S等于1,所述N1为大于或等于2的正整数。
- 根据权利要求1或2所述的方法,其特征在于,所述N1个频域资源对应的时域资源相同;或者,所述N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值,所述N2小于或等于所述N1。
- 根据权利要求1至3任一项所述的方法,其特征在于,所述S个波束组是根据传输周期发送的;所述传输周期包括第一周期,或者,所述传输周期包括所述第一周期以及一个或多个第二周期,所述第二周期小于所述第一周期。
- 根据权利要求1至3任一项所述的方法,其特征在于,所述S个波束组是根据非周期传输的传输时间或候选传输时间发送的。
- 根据权利要求5所述的方法,其特征在于,所述非周期传输的传输时间或候选传输时间是第三通信装置指示的。
- 根据权利要求5或6所述的方法,其特征在于,所述S个波束组的非周期传输是通过信令触发的。
- 根据权利要求1至7任一项所述的方法,其特征在于,所述S个波束组中的每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;所述M为所述每个波束组内的波束个数,所述M为正整数。
- 根据权利要求1至7任一项所述的方法,其特征在于,所述S个波束组中的波束子组的波束编号与所述S个波束组中除所述波束子组之外的波束的波束编号具有移位的关系。
- 根据权利要求1至7任一项所述的方法,其特征在于,当所述S个波束组中每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。
- 根据权利要求1至10任一项所述的方法,其特征在于,所述方法还包括:接收反馈信息,所述反馈信息包括所述S个波束组对应的信号和/或信道的测量结果。
- 根据权利要求11所述的方法,其特征在于,所述S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
- 根据权利要求11所述的方法,其特征在于,所述反馈信息包括第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果;所述第一周期或所述第二周期是所述S个波束组的传输周期;或者,所述反馈信息包括非周期发送S个波束组时所述S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求11所述的方法,其特征在于,所述反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求14所述的方法,其特征在于,所述测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个或多个频率上。
- 根据权利要求11至15任一项所述的方法,其特征在于,所述反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。
- 根据权利要求1至16任一项所述的方法,其特征在于,所述N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
- 根据权利要求1至17任一项所述的方法,其特征在于,所述S大于1时,所述S个波束组中至少两个波束组占用的时频资源部分重叠,或者所述S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,所述S1为小于所述S的正整数,所述S2为小于所述S的正整数。
- 根据权利要求1至18任一项所述的方法,其特征在于,所述方法还包括:确定向第四通信装置传输K个波束的第二传输资源;所述K为大于或等于2的正整数;所述第二传输资源占用N3个频域资源,所述N3个频域资源中的每个频域资源对应K/N3个时域资源;所述N3为小于或等于所述K的正整数;根据所述第二传输资源,向所述第四通信装置发送K个波束。
- 一种波束传输方法,其特征在于,所述方法包括:确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;所述S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;根据所述第一传输资源,接收所述S个波束组。
- 根据权利要求20所述的方法,其特征在于,所述S等于1,所述N1为大于或等于2的正整数。
- 根据权利要求20或21所述的方法,其特征在于,所述N1个频域资源对应的时域资源相同;或者,所述N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值;所述N2小于或等于所述N1。
- 根据权利要求20至22任一项所述的方法,其特征在于,所述S个波束组是根据传输周期接收的;所述传输周期包括第一周期,或者,所述传输周期包括所述第一周期以及一个或多个第二周期,所述第二周期小于所述第一周期。
- 根据权利要求20至22任一项所述的方法,其特征在于,所述S个波束组是根据非周期传输的传输时间或候选传输时间接收的。
- 根据权利要求24所述的方法,其特征在于,所述非周期传输的传输时间或候选传输时间是第三通信装置指示的。
- 根据权利要求24或25所述的方法,其特征在于,所述S个波束组的非周期传输是通过信令触发的。
- 根据权利要求20至25任一项所述的方法,其特征在于,所述S个波束组中的每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;所述M为所述每个波束组内的波束个数,所述M为正整数。
- 根据权利要求20至25任一项所述的方法,其特征在于,所述S个波束组中的波束子组的波束编号与所述S个波束组中除所述波束子组之外的波束的波束编号具有移位的关系。
- 根据权利要求20至28任一项所述的方法,其特征在于,当所述S个波束组中每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。
- 根据权利要求20至29任一项所述的方法,其特征在于,所述方法还包括:发送反馈信息,所述反馈信息包括所述S个波束组对应的信号和/或信道的测量结果。
- 根据权利要求30所述的方法,其特征在于,所述S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
- 根据权利要求30所述的方法,其特征在于,所述反馈信息包括第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果;所述第一周期或所述第二周期是所述S个波束组的传输周期;或者,所述反馈信息包括非周期发送S个波束组时所述S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求30所述的方法,其特征在于,所述反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求33所述的方法,其特征在于,所述测量结果大于第一阈值的一个或多个波束的测量结果对应的反馈资源承载在一个或多个频率上。
- 根据权利要求30至34任一项所述的方法,其特征在于,所述反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。
- 根据权利要求20至35任一项所述的方法,其特征在于,所述L个波束为不同方向的波束,或为具有不同准共址QCL关系的波束。
- 根据权利要求20至36任一项所述的方法,其特征在于,所述N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
- 根据权利要求20至37任一项所述的方法,其特征在于,所述S大于1时,所述S个波束组中至少两个波束组占用的时频资源部分重叠,或者所述S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,所述S1为小于所述S的正整数,所述S2为小于所述S的正整数。
- 一种通信装置,其特征在于,所述通信装置包括:处理单元,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;所述S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;通信单元,用于根据所述第一传输资源,发送所述S个波束组。
- 根据权利要求39所述的装置,其特征在于,所述S等于1,所述N1为大于或等于2的正整数。
- 根据权利要求39或40所述的装置,其特征在于,所述N1个频域资源对应的时域资源相同;或者,所述N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值,所述N2小于或等于所述N1。
- 根据权利要求39至41任一项所述的装置,其特征在于,所述S个波束组是根据传输周期发送的;所述传输周期包括第一周期,或者,所述传输周期包括所述第一周期以及一个或多个第二周期,所述第二周期小于所述第一周期。
- 根据权利要求39至41任一项所述的装置,其特征在于,所述S个波束组是根据非周期传输的传输时间或候选传输时间发送的。
- 根据权利要求43所述的装置,其特征在于,所述非周期传输的传输时间或候选传输时间是第三通信装置指示的。
- 根据权利要求43或44所述的装置,其特征在于,所述S个波束组的非周期传输是通过信令触发的。
- 根据权利要求39至45任一项所述的装置,其特征在于,所述S个波束组中的每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;所述M为所述每个波束组内的波束个数,所述M为正整数。
- 根据权利要求39至45任一项所述的装置,其特征在于,所述S个波束组中的波束子组的波束编号与所述S个波束组中除所述波束子组之外的波束的波束编号具有移位的关系。
- 根据权利要求39至45任一项所述的装置,其特征在于,当所述S个波束组中每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。
- 根据权利要求39至48任一项所述的装置,其特征在于,所述通信单元,还用于:接收反馈信息,所述反馈信息包括所述S个波束组对应的信号和/或信道的测量结果。
- 根据权利要求49所述的装置,其特征在于,所述S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
- 根据权利要求49所述的装置,其特征在于,所述反馈信息包括第一周期内或第二周期内的S个波束组对应的信号和/或信道的测量结果;所述第一周期或所述第二周期是所述S个波束组的传输周期;或者,所述反馈信息包括非周期发送S个波束组时所述S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求49所述的装置,其特征在于,所述反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求52所述的装置,其特征在于,所述测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果对应的反馈资源承载在一个或多个频率上。
- 根据权利要求49至53任一项所述的装置,其特征在于,所述反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。
- 根据权利要求39至54任一项所述的装置,其特征在于,所述N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
- 根据权利要求39至55任一项所述的装置,其特征在于,所述S大于1时,所述S个波束组中至少两个波束组占用的时频资源部分重叠,或者所述S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,所述S1为小于所述S的正整数,所述S2为小于所述S的正整数。
- 根据权利要求39至56任一项所述的装置,其特征在于,所述处理单元,还用于:确定向第四通信装置传输K个波束的第二传输资源;所述K为大于或等于2的正整数;所述第二传输资源占用N3个频域资源,所述N3个频域资源中的每个频域资源对应K/N3个时域资源;所述N3为小于或等于所述K的正整数;根据所述第二传输资源,向所述第四通信装置发送K个波束。
- 一种通信装置,其特征在于,所述通信装置包括:处理单元,用于确定S个波束组的第一传输资源;所述S个波束组中的任一波束组为第一波束组;所述第一波束组包括承载一个信道和/或信号的L个波束;所述L个波束占用N1个频域资源;每个频域资源对应L/N1个时域资源;所述S为正整数;所述L为大于或等于2的正整数;所述N1为小于或等于所述L的正整数;通信单元,用于根据所述第一传输资源,接收所述S个波束组。
- 根据权利要求58所述的装置,其特征在于,所述S等于1,所述N1为大于或等于2的正整数。
- 根据权利要求58或59所述的装置,其特征在于,所述N1个频域资源对应的时域资源相同;或者,所述N1个频域资源中的N2个频域资源对应的时域资源之间存在一个或多个偏移值;所述N2小于或等于所述N1。
- 根据权利要求58至60任一项所述的装置,其特征在于,所述S个波束组是根据传输周期接收的;所述传输周期包括第一周期,或者,所述传输周期包括所述第一周期以及一个或多个第二周期,所述第二周期小于所述第一周期。
- 根据权利要求58至60任一项所述的装置,其特征在于,所述S个波束组是根据非周期传输的传输时间或候选传输时间接收的。
- 根据权利要求62所述的装置,其特征在于,所述非周期传输的传输时间或候选传输时间是第三通信装置指示的。
- 根据权利要求62或63所述的装置,其特征在于,所述S个波束组的非周期传输是通过信令触发的。
- 根据权利要求58至64任一项所述的装置,其特征在于,所述S个波束组中的每个波束组内,不同时域上波束的波束编号间和/或不同频域上波束的波束编号间在0到M-1范围内具有移位的关系;或者,波束子组的波束编号之间在0到M-1范围内具有移位的关系;所述M为所述每个波束组内的波束个数,所述M为正整数。
- 根据权利要求58至64任一项所述的装置,其特征在于,所述S个波束组中的波束子组的波束编号与所述S个波束组中除所述波束子组之外的波束的波束编号具有移位的关系。
- 根据权利要求58至64任一项所述的装置,其特征在于,当所述S个波束组中每个波束组占用的时域资源个数或频域资源个数相同时,不同波束组间的波束编号具有循环移位的关系。
- 根据权利要求58至67任一项所述的装置,其特征在于,所述通信单元,还用于:发送反馈信息,所述反馈信息包括所述S个波束组对应的信号和/或信道的测量结果。
- 根据权利要求68所述的装置,其特征在于,所述S大于1时,同一个波束或同一个波束编号的波束对应的信号和/或信道的测量结果对应一个反馈资源。
- 根据权利要求68所述的装置,其特征在于,所述反馈信息包括所述第一周期内或所述第二周期内的S个波束组对应的信号和/或信道的测量结果;所述第一周期或所述第二周期是上述S个波束组的传输周期;或者,所述反馈信息包括非周期发送S个波束组时该S个波束组内的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求68所述的装置,其特征在于,所述反馈信息包括测量结果大于第一阈值的一个或多个波束对应的信号和/或信道的测量结果。
- 根据权利要求71所述的装置,其特征在于,所述测量结果大于第一阈值的一个或多个波束的测量结果对应的反馈资源承载在一个或多个频率上。
- 根据权利要求68至72任一项所述的装置,其特征在于,所述反馈信息指示具有相同准共址QCL关系的波束对应的信号和/或信道对应的不同频域资源。
- 根据权利要求58至73任一项所述的装置,其特征在于,所述L个波束为不同方向的波束,或为具有不同准共址QCL关系的波束。
- 根据权利要求58至74任一项所述的装置,其特征在于,所述N1个频域资源承载在N1个载波上,或一个载波的N1个子带上,或一个载波的N1个带宽部分BWP上,或大于一个载波的N1个子带上,或大于一个载波的N1个带宽部分BWP上。
- 根据权利要求58至75任一项所述的装置,其特征在于,S大于1时,所述S个波束组中至少两个波束组占用的时频资源部分重叠,或者所述S个波束组中S1个波束组与S2个波束组占用的时频资源互为重叠,S1为小于S的正整数,S2为小于所述S的正整数。
- 一种通信装置,其特征在于,包括处理器和通信接口,所述通信接口用于与其它通信装置进行通信;所述处理器用于运行程序,以使得所述通信装置实现权利要求1至19任一项所述的方法,或者,以使得所述通信装置实现权利要求20至38任一项所述的方法。
- 一种计算机可读存储介质,所述计算机可读存储介质存储有指令,当其在计算机上运行时,使得权利要求1至19任一项所述的方法被执行;或者权利要求20至38任一项所述的方法被执行。
- 一种包含指令的计算机程序产品,当其在计算机上运行时,使得权利要求1至19任一项所述的方法被执行;或者权利要求20至38任一项所述的方法被执行。
- 一种通信装置,其特征在于,包括处理器,所述处理器与存储器耦合,所述存储器存储指令,所述处理器用于执行所述指令,使得所述通信装置执行如权利要求1至19任一项所述的方法,或者,使得所述通信装置执行如权利要求20至38任一项所述的方法。
- 一种通信***,其特征在于,包括权利要求39至57任一项所述的通信装置以及权利要求58至76任一项所述的通信装置。
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CN107734514A (zh) * | 2016-08-11 | 2018-02-23 | 中兴通讯股份有限公司 | 分组指示信息的反馈方法、获取方法及装置 |
CN110291750A (zh) * | 2017-01-06 | 2019-09-27 | 康维达无线有限责任公司 | Nr中的高效接入和发送的机制 |
CN112438025A (zh) * | 2018-07-13 | 2021-03-02 | 索尼公司 | 时间重叠的波束扫描传输 |
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2021
- 2021-05-18 CN CN202110541194.6A patent/CN115378471A/zh active Pending
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2022
- 2022-05-16 WO PCT/CN2022/093167 patent/WO2022242610A1/zh active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105637952A (zh) * | 2014-09-24 | 2016-06-01 | 联发科技股份有限公司 | 波束成形***中的同步 |
CN107734514A (zh) * | 2016-08-11 | 2018-02-23 | 中兴通讯股份有限公司 | 分组指示信息的反馈方法、获取方法及装置 |
CN110291750A (zh) * | 2017-01-06 | 2019-09-27 | 康维达无线有限责任公司 | Nr中的高效接入和发送的机制 |
CN112438025A (zh) * | 2018-07-13 | 2021-03-02 | 索尼公司 | 时间重叠的波束扫描传输 |
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