WO2016180207A1 - Data communication method and apparatus using beamforming - Google Patents
Data communication method and apparatus using beamforming Download PDFInfo
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- WO2016180207A1 WO2016180207A1 PCT/CN2016/079908 CN2016079908W WO2016180207A1 WO 2016180207 A1 WO2016180207 A1 WO 2016180207A1 CN 2016079908 W CN2016079908 W CN 2016079908W WO 2016180207 A1 WO2016180207 A1 WO 2016180207A1
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
Definitions
- This application relates to, but is not limited to, the field of wireless communications.
- High-frequency communication predicts that the available frequency bands are new frequency bands such as 25 GHz, 31 GHz, 66-76 or 81-86 GHz, and the total bandwidth released will be greater than 100 GHz, which is an important way for spectrum expansion of 5G wireless communication systems.
- WPAN Wireless Personal Area Network
- WLAN Wireless Local Area Network
- ECMA European Computer Manufactures Association
- IEEE Institute of Electrical and Electronics Engineers 802.15.3c
- IEEE 802.11ad IEEE 802.11ad
- the reference signals for beam training are periodically transmitted according to a certain rule, and beams in different directions are transmitted in different time domains; the receiving side separately scans signals in the corresponding time segments, according to Certain performance evaluation criteria such as received signal strength or signal to interference and noise ratio determine the best beam and feed back to the transmitting side.
- the receiving side can also receive by using beamforming to enhance the received signal strength. At this time, the receiving side also needs to scan the receiving beams in different directions, find the most suitable beam pair, and feed back the corresponding information to the transmitting side.
- the solution of the related art is based on the WLAN mechanism, adopts a time division method and a contention access mechanism, and adopts OFDMA (Orthogonal Frequency Division Multiple Access) similar to LTE (Long Term Evolution).
- the system of entry and scheduling mechanisms is not suitable.
- a data communication method and device using beamforming which combines the transmission and reception of the common channel with the beam training process, and uses beamforming to transmit the information of the common channel, and enhances the coverage of the common channel while completing partial beam training.
- the process is to improve the efficiency of beam training between the transmitting side and the receiving side, enhance the performance of beam tracking, and ensure the quality of wireless communication in a high frequency band.
- a data communication method using beamforming comprising:
- the transmitting end transmits the signal of the common channel by using the beam of the first beam level
- the transmitting end uses the beam of the second beam level to transmit the reference signal, where the coverage of the beam of the first beam stage is greater than the beam of the second beam level;
- the transmitting end sends user data by using an optimal beam fed back by the receiving end.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the transmitting end sends the user data by using the optimal beam fed back by the receiving end, including:
- the transmitting end determines an optimal coverage of the coverage and the second beam level fed back by the receiving end a beam of a third beam level corresponding to the beam; wherein a coverage of the beam of the second beam level is greater than a beam of the third beam level, and a coverage of each of the second beam stages respectively corresponds to The coverage of one or more of the third beam stages;
- the transmitting end sends user data by using an optimal beam of the third beam level fed back by the receiving end.
- the sending, by the sending end, using the determined one or more beams of the third beam level to transmit a dedicated control channel includes:
- the transmitting end sends the user data by using the optimal beam fed back by the receiving end, including:
- the transmitting end sends user data by using an optimal beam of the second beam level fed back by the receiving end.
- the transmitting, by using the beam of the first beam level, the signal of the common channel includes:
- the transmitting end traverses and transmits the common channel on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
- the sending, by the sending end, using the beam of the second beam level to transmit the reference signal includes:
- the transmitting end traverses and transmits the reference signal on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
- a data communication method using beamforming comprising:
- the receiving end receives the signal of the common channel through the beam of the first beam stage
- the receiving end feeds back an optimal beam of the second beam stage.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the method further includes:
- the receiving end determines an optimal beam in the first beam level according to the received synchronization signal or discovery signal
- the receiving end demodulates the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
- the method further includes:
- the method further includes:
- the receiving end determines, according to the received signal of the dedicated control channel, an optimal beam of the third beam level and feedbacks the beam in the third beam level used by the receiving the dedicated control channel;
- the receiving end receives user data through an optimal beam of the third beam level.
- the method further includes:
- the receiving end receives user data through an optimal beam of the second beam level.
- a data communication device using beamforming which is disposed at a transmitting end, and includes:
- a first sending module configured to: use a beam of a first beam level to transmit a signal of a common channel
- a second sending module configured to: transmit a reference signal by using a beam of the second beam level; wherein, a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;
- the third sending module is configured to: send user data by using an optimal beam fed back by the receiving end.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the third sending module includes:
- a determining unit configured to: determine a beam of a third beam level corresponding to an optimal beam of the second beam level that is fed back by the receiving end; wherein a coverage of the beam of the second beam level a beam larger than the third beam level, where a coverage of each of the second beam levels respectively corresponds to a coverage of one or more of the third beam levels;
- a dedicated control channel sending unit configured to: transmit a dedicated control channel by using the determined one or more beams of the third beam level;
- the user data sending unit is configured to: send user data by using an optimal beam of the third beam level fed back by the receiving end.
- the dedicated control channel sending unit is configured to:
- the third sending module is configured to:
- User data is transmitted using an optimal beam of the second beam level fed back by the receiving end.
- the first sending module is configured to:
- the common channel is traversed on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
- the second sending module is configured to:
- the reference signal is traversed on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
- a data communication device using a beamforming device is disposed at the receiving end and includes:
- the first receiving module is configured to: receive a signal of the common channel by using a beam of the first beam level;
- the second receiving module is configured to receive the reference signal by using the beam of the second beam level, where the coverage of the beam of the first beam stage is greater than the beam of the second beam stage;
- the first feedback module is configured to: feed back an optimal beam of the second beam level.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the first receiving module is further configured to: after receiving the signal of the common channel by using the beam of the first beam level, determining an optimal beam in the first beam level according to the received synchronization signal or the discovery signal And demodulating the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
- the first receiving module is further configured to: after receiving the reference signal by using the beam of the second beam level, the second beam level corresponding to the optimal beam of the first beam level after coverage Determining, in the one or more beams, an optimal beam of the second beam level according to the received reference signal; wherein, a coverage of each of the first beam stages respectively corresponds to the second beam level The coverage of one or more beams.
- the device further includes:
- a third receiving module configured to: receive, by using one or more beams of the third beam level corresponding to an optimal beam of the second beam level, a signal of a dedicated control channel; wherein the second beam The coverage of the beam of the level is greater than the beam of the third beam level, and the coverage of each of the second beam stages respectively corresponds to the coverage of one or more of the third beam stages;
- a second feedback module configured to: receive a third beam level used by the dedicated control channel And determining, according to the received signal of the dedicated control channel, an optimal beam of the third beam level and feedback;
- the user data receiving module is configured to: receive user data by using an optimal beam of the third beam level.
- the device further includes:
- the user data receiving module is configured to: receive user data by using an optimal beam of the second beam level.
- a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
- the data communication method and device in the layered multi-level beamforming mode provided by the embodiment of the present invention improves beam training efficiency between the transmitting side and the receiving side, enhances beam tracking performance, and ensures wireless communication in a high frequency band. quality.
- FIG. 1 is a schematic flow chart of a data communication method using beamforming according to Embodiment 1;
- FIG. 2 is a schematic flow chart of a data communication method using beamforming in Embodiment 2;
- FIG. 3 is a schematic diagram of a mobile communication scenario using beamforming in a high frequency band in the first to third embodiments;
- Embodiment 5 is a schematic flow chart of Embodiment 1;
- FIG. 6 is a schematic diagram of transmitting signals in different time domains by multiple beams in Embodiment 1;
- FIG. 7 is a schematic diagram of transmitting a synchronization signal and a broadcast signal by using beamforming in the first embodiment
- Embodiment 8 is a schematic diagram of a dedicated control channel for transmitting a beamforming in Embodiment 1;
- FIG. 9 is a schematic diagram of transmitting signals in different frequency domains by multiple beams in Embodiment 2;
- 10 is a schematic diagram of multiple beams transmitting signals in different code domains
- FIG. 11 is a schematic diagram of transmitting a synchronization signal and a broadcast signal by using beamforming in Embodiment 2;
- FIG. 12 is a schematic diagram of a dedicated control channel using beamforming transmission in Embodiment 3.
- FIG. 14 is a schematic diagram of a data communication apparatus using beamforming in Embodiment 3.
- 15 is a schematic diagram of a data communication apparatus using beamforming in the fourth embodiment.
- Embodiment 1 A data communication method using beamforming, as shown in FIG. 1, includes:
- the transmitting end sends a signal of the common channel by using a beam of the first beam level.
- the transmitting end sends a reference signal by using a beam of a second beam level, where a coverage of the beam of the first beam stage is greater than a beam of the second beam stage.
- the sending end sends user data by using an optimal beam fed back by the receiving end.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the S130 includes:
- the transmitting end determines a beam of a third beam level that corresponds to an optimal beam of the second beam level that is fed back by the receiving end; wherein a coverage of the beam of the second beam level is greater than a beam of a third beam level, the coverage of each of the second beam stages respectively corresponding to a coverage of one or more of the third beam stages;
- the transmitting end uses the determined beam transmission specific control of one or more of the third beam levels Channel
- the transmitting end sends user data by using an optimal beam of the third beam level fed back by the receiving end.
- a layered multi-stage beamforming manner may be adopted, which may be, but is not limited to, dividing a beamforming and a beam training process in a communication process into three levels: a first beam level (also referred to as a wide beam level).
- a second beam level also referred to as a narrow beam level
- a third beam level also referred to as an ultra-narrow beam level
- the coverage of each of the wide beam stages corresponds to a narrow beam level, respectively
- the coverage of one or more beams in the narrow beam level the coverage of each beam only corresponds to the coverage of a beam of a wide beam level
- the coverage of each beam in the narrow beam level corresponds to an ultra narrow Coverage of one or more beams in the beam level
- the coverage of each beam in the ultra-narrow beam level corresponds only to the coverage of a beam of a narrow beam level.
- Different levels of beams can be distinguished by level ID (identification). Beams in the same level are distinguished by different beam IDs. The coverage of three levels of beam IDs can be established according to the actual coverage of each beam. Correspondence relationship.
- the physical layer channel and signal are classified into four types, a common channel, a reference signal, a dedicated control channel, and a dedicated data channel.
- the common channel transmits a synchronization signal, a broadcast signal, a paging signal, a system message, and a common control signaling; the reference signal is used for channel state information estimation, and the narrow beam level optimal beam information is acquired; and the dedicated control channel transmits the mobile user or Equipment-specific signal and control signaling, such as ultra-narrow beam training signals, scheduling messages, channel quality feedback information, power control information, etc.; dedicated data channels to transmit service data of mobile users or devices.
- Equipment-specific signal and control signaling such as ultra-narrow beam training signals, scheduling messages, channel quality feedback information, power control information, etc.
- the physical layer channels and signals are transmitted in a hierarchical multi-stage beamforming manner, and the beam lobe width and the number of beams respectively correspond to different levels of the beamforming described above.
- the sending, by the sending end, using the determined one or more beams of the third beam level to transmit a dedicated control channel includes:
- the dedicated control channel Transmitting, by the transmitting end, the dedicated control channel on a beam of the determined one of the third beam stages, or traversing and transmitting the dedicated control channel on the determined beams of the third beam stage, ie : when there is only one beam of the determined third beam level, the dedicated control channel is transmitted on the beam, and if there are multiple, the dedicated control channel is traversed by the multiple beams; the following ones are used by different beams Or any of several resources are different: time domain resources, frequency domain resources, code domain resources.
- the S130 includes:
- the transmitting end sends user data by using an optimal beam of the second beam level fed back by the receiving end.
- step S110 includes:
- the transmitting end traverses and transmits the common channel on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
- step S120 includes:
- the transmitting end traverses and transmits the reference signal on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
- Embodiment 2 A data communication method using beamforming, as shown in FIG. 2, includes:
- the receiving end receives a signal of a common channel by using a beam of the first beam level.
- the receiving end receives a reference signal by using a beam of the second beam level, where a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;
- the receiving end feeds back an optimal beam of the second beam stage.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the method further includes:
- the receiving end determines an optimal beam in the first beam level according to the received synchronization signal or discovery signal
- the receiving end demodulates the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
- the method may further include:
- the method further includes:
- the receiving end determines, in the beam, an optimal beam of the third beam level and feedback according to the received signal of the dedicated control channel;
- the receiving end receives user data through an optimal beam of the third beam level.
- the method further includes:
- the receiving end receives user data through an optimal beam of the second beam level.
- the first, second, and third beam levels are respectively a wide beam level, a narrow beam level, and an ultra-narrow beam level.
- the implementation process of the example includes the step 301. 308:
- Step 301 The transmitting end (such as but not limited to a base station or a transmitting node, etc.) sends a synchronization signal or a discovery signal in a common channel, and a broadcast signal.
- the transmitting end transmits the signal of the common channel
- the transmitting end transmits according to the wide beam level beamforming manner.
- the signals of the common channel are traversed and transmitted on all the beams in the wide beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domain resources; wherein, in the broadcast signal
- the information includes, but is not limited to, the following information: the correspondence information between the three levels of the beam on the coverage area.
- each beam can be uniquely identified by the level ID + the beam ID; when the synchronization signal and the broadcast signal are located Domain, frequency domain or code domain resource information and ID information of a corresponding wide beam level beam; time domain in which the reference signal is located, frequency domain or code domain resource information, and ID information of a beam within a corresponding level;
- Step 302 The receiving end (such as but not limited to being a mobile user or device) detects a synchronization signal or a discovery signal in a time domain, a frequency domain or a code domain corresponding to all beams of the wide beam level, according to corresponding performance evaluation criteria such as the detected signal. Energy, received signal strength, signal to interference and noise ratio, etc. determine the wide beam level Optimal beam; demodulate the broadcast signal in the time domain, frequency domain or code domain resource corresponding to the optimal beam. According to the information in the broadcast signal obtained by the demodulation, the receiving end determines the ID information of the optimal beam, and feeds back the ID information of the optimal beam of the wide beam level to the transmitting end;
- Step 303 The transmitting end sends the reference signal by using a narrow beam level beamforming manner.
- the reference signal is periodically traversed and transmitted on all the beams in the narrow beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources;
- Step 304 The receiving end determines ID information of beams of all narrow beam levels corresponding to the optimal beam of the wide beam level according to the correspondence information between the three level beams, and then corresponds to the determined beams of all the narrow beam levels.
- the reference signal is received on the time-frequency code domain resource, and the optimal beam (one or more) of the narrow beam level is determined according to the corresponding performance evaluation criteria, such as the received signal strength, the signal to interference and noise ratio, and the ID information of the optimal beam is fed back.
- the optimal beam one or more
- Step 305 After receiving the ID information of the optimal beam of the narrow beam level fed back by the receiving end, the transmitting end obtains a narrow beam level related to the mobile user or device according to the correspondence information between the three levels of beams. a list of ID information of beams of the ultra-narrow beam level corresponding to the optimal beam ID;
- Step 306 The transmitting end sends the signal of the dedicated control channel according to the ultra-narrow beam-level beamforming manner; the dedicated control channel is sent on multiple ultra-narrow beams, including the ultra-narrow beam-level beam corresponding to the optimal beam of the narrow beam level. All beams in the ID information list.
- the following ones or any of the resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources; the transmitting end may send the ID information of the beam within the level while transmitting the dedicated control channel, or The ID information of the beam is hidden in the time domain, the frequency domain or the code domain resource;
- Step 307 The receiving end receives the signal in the dedicated control channel in the corresponding time-frequency code domain resource, and determines the optimal beam set according to the corresponding performance evaluation criteria, such as the received signal strength, the signal to interference and noise ratio, and the like, and simultaneously sends the same in the dedicated control channel.
- the ID information of the beam, the ID information of the optimal beam in the feedback level of the receiving end is sent to the transmitting end; if the ID information of the beam is hidden in the time domain, the frequency domain or the code domain, the receiving end will match the time of the optimal beam.
- the domain or codeword information is fed back to the sending end, and the sending end obtains the ID information of the corresponding optimal beam according to the time domain, the frequency domain or the codeword information;
- Step 308 The transmitting end determines the beam direction of the transmitted data according to the ID information of the optimal beam in the ultra-narrow beam level fed back by the receiving end, and sends the user data according to the ultra-narrow beam level beamforming manner.
- the sending end may perform the following steps instead of performing steps 305-308 after step 304:
- the transmitting end sends the user data according to the narrow beam level beamforming manner according to the ID information of the beam of the narrow beam level fed back by the receiving end.
- the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the above data forming method using beamforming.
- the first beam level is referred to as a wide beam level
- the second beam level is referred to as a narrow beam level
- the third beam level is referred to as an ultra-narrow beam level.
- the transmitting node TP uses a high frequency band to provide high-speed data services for its covered MS (Mobile Subscriber).
- TP is a node with beamforming capability. By shaping the weights on the antenna phase, beams of different shapes and directions can be formed.
- the TP simultaneously provides services for multiple MSs (such as the first mobile user and the second mobile user in FIG. 1) by means of beamforming.
- beamforming is used to form a directional beam to increase the antenna gain and improve the signal receiving strength.
- the narrower the beamwidth (usually measured by the 3dB lobe width), the greater the gain from the antenna.
- the single beam lobe width of the transmission synchronization and broadcast signals is 40 degrees, and three beams of the same lobe width are used, and the main lobe directions are 40 degrees and 0 degrees, respectively.
- -40 degrees covering the 120 degree area of the horizontal plane, as shown in Figure 4 (a), beam 0-0, beam 0-1 and beam 0-2, these three beams are beams of wide beam level, level ID 0, the beam ID is 0, 1, 2, respectively.
- Beams of narrow beam level and ultra-narrow beam level are used to transmit reference signals, dedicated control channel signals, and user data.
- each wide beam corresponds to three narrow beams, a total of nine narrow beams, a level ID of 1, and a beam ID of 0-8, as shown in FIG. 4(b), beam 1-0, beam 1-1, beam 1-2, beam 1-3, beam 1-4, beam 1-5, beam 1-6, beam 1-7 and beam 1-8; each narrow beam corresponds to 3 ultra-narrow beams, a total of 27 ultra-narrow beams, level ID 2, beam ID 0 to 26 as shown in Figure 4 (c)
- the illustrated beam 2-k, beam 2-k+1 and beam 2-k+2 are three of the 27 ultra-narrow beams, where k is an integer and 0 ⁇ k ⁇ 24. According to the coverage characteristics, the relationship between the beams is as shown in Table 1.
- the flowchart of the data communication in this embodiment example refers to FIG. 5 and includes steps 501 to 514.
- the TP transmits a synchronization signal to the MS using a beam of a wide beam level.
- the TP sends a broadcast signal to the MS by using a beam of a wide beam level.
- the beamforming is performed at a wide beam level, and the wide beam level of three different directions as shown in FIG. 4(a) is respectively transmitted in different time periods.
- the beam as shown in Figure 6, transmits the beam 0-0 during time period t1, transmits the beam 0-1 during time period t2, and transmits the beam 0-2) during time period t3.
- the broadcast signal includes, but is not limited to, the following information: system message; correspondence information of coverage between the three levels of the beam, etc., in the correspondence information, each beam can be uniquely identified by the level ID + the beam ID; The time domain information of the signal and the broadcast signal and the ID information of the beam of the corresponding wide beam level (including the level ID and the beam ID); the time domain information of the reference signal and the ID information of the beam within the corresponding level.
- the broadcast signal is transmitted after the synchronization signal and is transmitted periodically, as shown in FIG.
- the MS obtains synchronization and determines ID information of the optimal beam in the wide beam level.
- the receiving side MS detects the synchronization signal on the time axis, the correspondence information on the coverage between the three levels of beams, and the system message and the like.
- the MS detects the synchronization signals at the time t2' and the time t3', compares the peak information of the synchronization signal detected at the time t1', the time t2', and the time t3', and determines the ID information of the optimum beam at the wide beam level.
- the MS demodulates the broadcast signal in the resource corresponding to the optimal beam.
- the ID information of the beam transmitted at the current time and the time domain information corresponding to the other signals of the synchronization signal and the broadcast signal are obtained. 505.
- the MS feeds back the ID information of the optimal beam in the wide beam level to the TP.
- the TP sends a reference signal to the MS by using a beam of a narrow beam level.
- the TP uses a narrow beam-level beamforming method to transmit the reference signal, and the reference signal is also periodically transmitted. All the MSs in the TP coverage use the same reference signal for channel estimation and narrow beam-level beam training, so the TP needs The reference signal is transmitted on all narrow beam level beams. In this embodiment example, it is considered to perform traversal of the beam in the time domain.
- the MS acquires CSI (Channel State Information) and determines ID information of the optimal beam in the narrow beam level.
- CSI Channel State Information
- the MS first determines the beam of the narrow beam level corresponding to the optimal beam in the wide beam level, and assumes that the optimal beam of the wide beam level is the beam 0-1. According to Table 1, the beam of the corresponding narrow beam level is the beam. 1-3, beam 1-4 and beam 1-5.
- the MS detects the reference signal on the time domain resources corresponding to the beams of the three narrow beam levels, compares the signal strengths on the three beams, and obtains an optimal beam of a narrow beam level, which is assumed to be a beam 1-3.
- the MS reports the CSI on the corresponding beam and the ID information of the optimal beam of the narrow beam level to the TP.
- the TP performs scheduling and resource allocation.
- the TP sends a dedicated control channel to the MS by using a beam of an ultra-narrow beam level.
- the TP sends the relevant scheduling information and the like to the MS through the dedicated control channel after scheduling and resource allocation according to the CSI information reported by each MS.
- the dedicated control channel is transmitted in a beamforming manner with an ultra-narrow beam level.
- the TP determines the corresponding ultra-narrow beam-level beam according to the optimal beam of the narrow beam level reported by the MS.
- the beam of the ultra-narrow beam level corresponding to the beam 1-3 is the beam 2-9, the beam 2-10, and the beam. 2-11.
- Signals for the dedicated control channel of the MS are transmitted on these three beams.
- different beams transmitting a dedicated control channel are traversed and transmitted on different frequency domain resources, as shown in FIG.
- the MS acquires control information, and determines ID information of an optimal beam in the ultra-narrow beam level.
- the MS feeds back the ID information of the optimal beam in the ultra-narrow beam level to the TP.
- the MS demodulates the control signaling on the three frequency domain resources f1, f2, and f3, and determines the ID information of the optimal beam of the ultra-narrow beam level according to the signal to interference and noise ratio obtained by the demodulation, and then The information is reported to the sender TP.
- the TP uses the beam of the ultra-narrow beam level to transmit user data to the MS.
- the TP uses the corresponding ultra-narrow beam-level beam to transmit user data to the MS according to the ID information of the optimal beam of the ultra-narrow beam level reported by the MS, and performs beam according to the shaping mode corresponding to the ID information of the optimal beam. Shape and send.
- the MS decodes the user data.
- the transmitting node TP uses a high frequency band to provide high-speed data services for the MS under its coverage.
- TP is a node with beamforming capability. By shaping the weights on the antenna phase, beams of different shapes and directions can be formed.
- the TP serves multiple MSs simultaneously by beamforming.
- the single beam lobe width of the transmission synchronization and broadcast signals is 40 degrees, and three beams of the same lobe width are used, and the main lobe directions are 40 degrees and 0 degrees, respectively.
- each wide beam corresponds to three narrow beams, a total of nine narrow beams, a level ID of 1, and a beam ID of 0-8, as shown in FIG. 4(b).
- each narrow beam corresponds to 3 ultra-narrow beams, a total of 27 ultra-narrow beams, level ID 2, beam ID 0 to 26, as shown in Figure 4 (c)
- beam 2-k, beam 2 -k+1 and beam 2-k+2 are three of the 27 ultra-narrow beams, where k is an integer and 0 ⁇ k ⁇ 24.
- the gap between the beams It is as shown in Table 1 in the first embodiment.
- the TP uses wide beam level beamforming to transmit three different broad beams in different directions as shown in Figure 4(a), and the frequency domain used by different beams.
- the resources are kept at a certain interval to facilitate filter filtering, as shown in Figure 9, or the code domain resources are kept at a certain interval, as shown in Figure 10.
- the broadcast information includes, but is not limited to, the following information: system message; correspondence information of coverage between three levels of beams, etc., in the correspondence information, each beam can be uniquely identified by level ID + beam ID; The time domain information of the signal and the broadcast signal and the ID information of the beam of the corresponding wide beam level; the time domain information of the reference signal and the ID information of the beam within the corresponding level.
- the broadcast signal is located after the sync signal and is transmitted periodically, as shown in FIG.
- the receiving side MS detects the synchronization signal after filtering the three frequency bands f1, f2 and f3 where the synchronization signal is located (the corresponding frequency point information can be known through pre-configured or low-band network broadcast information of the same station), for example, on f2.
- the broadcast signal is demodulated on the corresponding broadcast channel to obtain the ID information of the beam transmitted on the current resource, and the information of the synchronization signal and other beams of the broadcast signal, between the three levels of the beam. Correspondence information and system messages on the coverage area.
- the MS compares the peak information of the synchronization signal detected on f1, f2, and f3, determines the ID information of the optimal beam in the wide beam level, and feeds back the ID information of the optimal beam to the TP.
- the TP uses a narrow beam-level beamforming method to transmit reference signals.
- the reference signals are also periodically transmitted. All MSs in the TP coverage use the same reference signal for channel estimation and narrow beam-level beam training. Therefore, TP needs to be in all narrow beams.
- the reference signal is transmitted on the beam of the level. In this embodiment example, it is considered to perform traversal of the beam in the time domain.
- the MS determines the beam of the corresponding narrow beam level as beam 1-3, beam 1-4 and beam 1-5 according to the ID information of the optimal beam of the wide beam level, assuming beam 0-1.
- the MS detects the reference signal on the time domain resources corresponding to the three beams, compares the signal strengths on the three beams, and obtains an optimal beam at a narrow beam level, which is assumed to be a beam 1-3.
- the MS reports the CSI (Channel State Information) on the corresponding beam and the ID information of the optimal beam in the narrow beam level to the TP.
- CSI Channel State Information
- the TP sends the relevant scheduling information and the like to the MS through the dedicated control channel after scheduling and resource allocation according to the CSI information and the like reported by each MS.
- the dedicated control channel is transmitted in a beamforming manner with an ultra-narrow beam level.
- the TP determines the ID information of the optimal beam of the corresponding ultra-narrow beam level according to the narrow beam level optimal beam reported by the MS, and determines the beam of the ultra-narrow beam level corresponding to the beam 1-3 according to Table 1 as the beam 2-9, the beam 2 -10, beam 2-11.
- Signals for the dedicated control channel of the MS are transmitted on these three beams.
- different beams transmitting a dedicated control channel are traversed and transmitted on different code domain resources, as shown in FIG.
- the three sets of antennas are shaped to generate three beams in different directions.
- three orthogonal or quasi-orthogonal codewords are used for spreading and then transmitted, and the receiving side demodulates to obtain signals under different codewords. And determining the ID information of the optimal beam of the ultra-narrow beam level according to the signal-to-noise ratio obtained by the demodulation, and then reporting the ID information of the optimal beam of the ultra-narrow beam level to the transmitting end TP.
- the TP transmits the user data according to the ID information of the optimal beam of the ultra-narrow beam level reported by the MS, and uses the corresponding ultra-narrow beam level beam to transmit the user data, and performs beamforming and transmitting according to the shaping mode corresponding to the ID information of the optimal beam.
- the transmitting node TP uses a high frequency band to provide high-speed data services for the MS under its coverage.
- TP is a node with beamforming capability. By shaping the weights on the antenna phase, beams of different shapes and directions can be formed.
- the TP serves multiple MSs simultaneously by beamforming.
- the single beam lobe width of the transmission synchronization and broadcast signals is 40 degrees, and three beams of the same lobe width are used, and the main lobe directions are 40 degrees and 0 degrees, respectively.
- each wide beam corresponds to three narrow beams, a total of nine narrow beams, a level ID of 1, and a beam ID of 0-8, as shown in FIG. 4(b).
- Each narrow beam corresponds to 3 ultra-narrow beams, a total of 27 ultra-narrow beams, level ID 2, beam ID 0 to 26, as shown in Figure 4 (c), beam 2-k, beam 2-k+1 And beam 2-k+2 is three of the 27 ultra-narrow beams, where k is an integer and 0 ⁇ k ⁇ 24.
- the relationship between the beams is as shown in Table 1 in the first embodiment.
- the flowchart of data communication in this embodiment example refers to FIG. 13 and includes steps 601-610.
- the TP uses a beam of a wide beam level to transmit a synchronization signal to the MS.
- the TP sends a broadcast signal to the MS by using a beam of a wide beam level.
- the TP adopts wide beam level beamforming, and respectively transmits three wide beams in different directions as shown in FIG. 4(a) in different time periods, as shown in the figure. 6 is shown.
- the broadcast information includes, but is not limited to, the following information: system message; correspondence information of coverage between three levels of beams, etc., in the correspondence information, each beam can be uniquely identified by level ID + beam ID; The time domain information of the broadcast signal and the ID information of the beam of the corresponding wide beam level; the time domain information of the reference signal and the ID information of the beam within the corresponding level.
- the broadcast signal is located after the synchronization signal and is transmitted periodically, as shown in FIG.
- the MS obtains synchronization and determines ID information of the optimal beam in the wide beam level.
- the receiving side MS detects the synchronization signal on the time axis, the correspondence information on the coverage between the three levels of beams, and the system message and the like.
- the MS detects the synchronization signals at the time t2' and the time t3', compares the peak information of the synchronization signal detected at the time t1', the time t2', and the time t3', and determines the ID information of the optimum beam at the wide beam level.
- the MS demodulates the broadcast signal in the resource corresponding to the optimal beam.
- the ID information of the beam transmitted at the current time and the time domain information corresponding to the other signals of the synchronization signal and the broadcast signal are obtained.
- the MS feeds back the ID information of the optimal beam in the wide beam level to the TP.
- the TP sends a reference signal to the MS by using a beam of a narrow beam level.
- the TP uses a narrow beam-level beamforming method to transmit the reference signal, and the reference signal is also periodically transmitted. All the MSs in the TP coverage use the same reference signal for channel estimation. Metering and narrow beam level beam training, so the TP needs to transmit reference signals on all narrow beam level beams. In this embodiment example, it is considered to perform traversal of the beam in the time domain.
- the MS acquires CSI (Channel State Information) and determines ID information of the optimal beam in the narrow beam level.
- CSI Channel State Information
- the MS first determines the beam of the narrow beam level corresponding to the optimal beam in the wide beam level, and assumes that the optimal beam of the wide beam level is the beam 0-1. According to Table 1, the beam of the corresponding narrow beam level is the beam. 1-3, beam 1-4 and beam 1-5.
- the MS detects the reference signal on the time domain resources corresponding to the beams of the three narrow beam levels, compares the signal strengths on the three beams, and obtains an optimal beam of a narrow beam level, which is assumed to be a beam 1-3.
- the MS reports the CSI on the corresponding beam and the ID information of the optimal beam of the narrow beam level to the TP.
- the TP sends the user data to the MS by using a beam of a narrow beam level.
- the TP transmits the user data according to the ID information of the optimal beam of the narrow beam level reported by the MS, and uses the beam of the corresponding narrow beam level to transmit the user data, and performs beamforming according to the shaping mode corresponding to the ID information of the optimal beam. send.
- the MS decodes the user data.
- Embodiment 3 A data communication device using beamforming is disposed on the transmitting end, as shown in FIG. 14, and includes:
- the first sending module 141 is configured to: send a signal of the common channel by using a beam of the first beam level;
- the second sending module 142 is configured to: transmit a reference signal by using a beam of the second beam level, where a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;
- the third sending module 143 is configured to: send user data by using an optimal beam fed back by the receiving end.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the third sending module 143 includes:
- a determining unit configured to: determine a beam of a third beam level corresponding to an optimal beam of the second beam level that is fed back by the receiving end; wherein a coverage of the beam of the second beam level a beam larger than the third beam level, where a coverage of each of the second beam levels respectively corresponds to a coverage of one or more of the third beam levels;
- a dedicated control channel sending unit configured to: transmit a dedicated control channel by using the determined one or more beams of the third beam level;
- the user data sending unit is configured to: send user data by using an optimal beam of the third beam level fed back by the receiving end.
- the dedicated control channel sending unit is configured to:
- the third sending module 143 is configured to:
- User data is transmitted using an optimal beam of the second beam level fed back by the receiving end.
- the first sending module 141 is configured to:
- the common channel is traversed on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
- the second sending module 142 is configured to:
- the reference signal is traversed on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
- Embodiment 4 A data communication device using beamforming is disposed on the receiving end, as shown in FIG. 15, and includes:
- the first receiving module 151 is configured to: receive a signal of a common channel by using a beam of the first beam level;
- the second receiving module 152 is configured to receive the reference signal by using the beam of the second beam level, where the coverage of the beam of the first beam stage is greater than the beam of the second beam stage;
- the first feedback module 153 is configured to: feed back an optimal beam of the second beam stage.
- the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
- the first receiving module is further configured to: after receiving the signal of the common channel by using the beam of the first beam level, determining an optimal beam in the first beam level according to the received synchronization signal or the discovery signal And demodulating the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
- the first receiving module is further configured to: after receiving the reference signal by using the beam of the second beam level, the second beam level corresponding to the optimal beam of the first beam level after coverage Determining, in the one or more beams, an optimal beam of the second beam level according to the received reference signal; wherein, a coverage of each of the first beam stages respectively corresponds to the second beam level The coverage of one or more beams.
- the device further includes:
- a third receiving module configured to: receive, by using one or more beams of the third beam level corresponding to an optimal beam of the second beam level, a signal of a dedicated control channel; wherein the second beam The coverage of the beam of the level is greater than the beam of the third beam level, and the coverage of each of the second beam stages respectively corresponds to the coverage of one or more of the third beam stages;
- a second feedback module configured to: determine, according to the received signal of the dedicated control channel, an optimal beam of the third beam level and feedback in a beam of the third beam level used by the dedicated control channel;
- the user data receiving module is configured to: receive user data by using an optimal beam of the third beam level.
- the device further includes:
- the user data receiving module is configured to: receive user data by using an optimal beam of the second beam level.
- the common channel transmission and reception and the beam training process are combined, and the information of the common channel is transmitted by beamforming, and the partial beam training process is completed while enhancing the common channel coverage, so as to improve the beam between the transmitting side and the receiving side.
- the efficiency of training enhance the performance of beam tracking, and ensure the quality of wireless communication in high frequency bands.
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Abstract
Disclosed are a data communication method and apparatus using beamforming. The method comprises: a sending end sends a signal of a common channel by using a beam on a first beam level; the sending end sends a reference signal by using a beam on a second beam level, the coverage of the beam on the first beam level being larger than that of the beam on the second beam level; and the sending end sends user data by using an optimal beam fed back by a reception end.
Description
本申请涉及但不限于无线通信领域。This application relates to, but is not limited to, the field of wireless communications.
随着移动互联网、物联网业务的迅猛增长,业务类型丰富多样,预测未来5G(fifth generation,第五代移动通讯)的用户峰值速率增长10-100倍,小区吞吐量增长1000倍,支持用户数增长10-100倍,提供约10Gbps的峰值速率。仅仅依赖于频谱效率的提升难以满足高速无线业务传输的需求,无线通信的频谱短缺成为了未来无线通信技术发展的瓶颈。高频通信预测可用频段为25GHz、31GHz、66-76或81-86GHz等新频段,释放的总带宽将大于100GHz,作为5G无线通信***频谱扩充的重要途径。With the rapid growth of mobile Internet and IoT services, the types of services are rich and diverse, and the peak rate of users of 5G (fifth generation, fifth generation mobile communication) is expected to increase by 10-100 times, the throughput of cells is increased by 1000 times, and the number of users is supported. It grows 10-100 times and provides a peak rate of about 10 Gbps. It is difficult to meet the demand of high-speed wireless service transmission only by relying on the improvement of spectrum efficiency. The spectrum shortage of wireless communication has become a bottleneck for the development of wireless communication technology in the future. High-frequency communication predicts that the available frequency bands are new frequency bands such as 25 GHz, 31 GHz, 66-76 or 81-86 GHz, and the total bandwidth released will be greater than 100 GHz, which is an important way for spectrum expansion of 5G wireless communication systems.
由于高频电磁波的路径损耗和穿透损耗较传统通信***大很多,提供可靠的链路质量是高频通信***首先要解决的问题,另一方面,高频段小型化的天线和设备、较高的方向增益为未来Massive(大规模)MIMO(Multiple-Input Multiple-Output,多输入多输出)技术实现创造了得天独厚的条件。因此高频通信和MIMO尤其是BF(Beam forming,波束赋形)的结合是未来无线通信发展的必然趋势。Since the path loss and penetration loss of high-frequency electromagnetic waves are much larger than those of traditional communication systems, providing reliable link quality is the first problem to be solved in high-frequency communication systems. On the other hand, antennas and devices with high frequency band miniaturization are higher. The directional gain creates unique conditions for the future implementation of Massive MIMO (Multiple Input Multiple-Output) technology. Therefore, the combination of high frequency communication and MIMO, especially BF (Beam forming), is an inevitable trend in the future development of wireless communication.
目前WPAN(Wireless Personal Area Network,无线个人局域网)和WLAN(Wireless Local Area Network,无线局域网)已经制定了毫米波频段通信的技术标准,如ECMA(European Computer Manufactures Association,欧洲计算机制造联合会)-387,IEEE(Institute of Electrical and Electronics Engineers,电气和电子工程师协会)802.15.3c和IEEE 802.11ad,并逐步走向产业化。相关技术的协议标准和业界研究成果中,针对业务数据传输部分,大部分都考虑了采用BF技术形成具有方向性的波束来补偿高频段下的路径损耗。发送侧和接收侧的波束训练过程通常采用的是时域扫描的方法。在发送侧,用于波束训练的参考信号根据一定的规则周期性发送,不同方向的波束在不同的时间域上发送;接收侧分别扫描相应时间段内的信号,根据
一定的性能评估准则如接收信号强度或信干噪比等判断最好的波束并反馈给发送侧。接收侧也可采用波束赋形进行接收,以增强接收信号强度,此时,接收侧也需要对不同方向的接收波束进行扫描,找到最合适的波束对,并将相应的信息反馈给发送侧。Currently, WPAN (Wireless Personal Area Network) and WLAN (Wireless Local Area Network) have established technical standards for millimeter wave band communication, such as ECMA (European Computer Manufactures Association)-387 , IEEE (Institute of Electrical and Electronics Engineers) 802.15.3c and IEEE 802.11ad, and gradually industrialization. In the protocol standards and industry research results of related technologies, most of the business data transmission parts are considered to form a directional beam using BF technology to compensate for path loss in the high frequency band. The beam training process on the transmitting side and the receiving side usually adopts a time domain scanning method. On the transmitting side, the reference signals for beam training are periodically transmitted according to a certain rule, and beams in different directions are transmitted in different time domains; the receiving side separately scans signals in the corresponding time segments, according to
Certain performance evaluation criteria such as received signal strength or signal to interference and noise ratio determine the best beam and feed back to the transmitting side. The receiving side can also receive by using beamforming to enhance the received signal strength. At this time, the receiving side also needs to scan the receiving beams in different directions, find the most suitable beam pair, and feed back the corresponding information to the transmitting side.
相关技术的方案大部分基于WLAN机制,采用时分的方法和竞争接入机制,对于以类似于LTE(Long Term Evolution,长期演进)采用OFDMA(Orthogonal Frequency Division Multiple Access,正交频分多址)接入以及调度机制的***而言并不适应。且通过时间域上进行波束扫描来获取发送和接收侧之间的最优波束对的方法,当波束的波瓣宽度较窄,波束方向较多时,发送侧和接收侧波束扫描需要时间较长。用户移动时,难以有效跟踪波束的变化,严重影响通信质量。The solution of the related art is based on the WLAN mechanism, adopts a time division method and a contention access mechanism, and adopts OFDMA (Orthogonal Frequency Division Multiple Access) similar to LTE (Long Term Evolution). The system of entry and scheduling mechanisms is not suitable. The method of obtaining the optimal beam pair between the transmitting and receiving sides by performing beam scanning in the time domain, when the beam width of the beam is narrow and the beam direction is large, the beam scanning on the transmitting side and the receiving side takes a long time. When the user moves, it is difficult to effectively track the change of the beam, which seriously affects the communication quality.
发明内容Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.
本文提出了一种采用波束赋形的数据通信方法和装置,将公共信道的收发和波束训练过程相结合,采用波束赋形发送公共信道的信息,在增强公共信道覆盖的同时,完成部分波束训练过程,以提高发送侧和接收侧之间波束训练的效率,增强波束跟踪的性能,保证高频段下无线通信质量。In this paper, a data communication method and device using beamforming is proposed, which combines the transmission and reception of the common channel with the beam training process, and uses beamforming to transmit the information of the common channel, and enhances the coverage of the common channel while completing partial beam training. The process is to improve the efficiency of beam training between the transmitting side and the receiving side, enhance the performance of beam tracking, and ensure the quality of wireless communication in a high frequency band.
一种采用波束赋形的数据通信方法,包括:A data communication method using beamforming, comprising:
发送端使用第一波束级的波束发送公共信道的信号;The transmitting end transmits the signal of the common channel by using the beam of the first beam level;
所述发送端使用第二波束级的波束发送参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;The transmitting end uses the beam of the second beam level to transmit the reference signal, where the coverage of the beam of the first beam stage is greater than the beam of the second beam level;
所述发送端使用接收端反馈的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam fed back by the receiving end.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,所述发送端使用接收端反馈的最优波束发送用户数据包括:Optionally, the transmitting end sends the user data by using the optimal beam fed back by the receiving end, including:
所述发送端确定覆盖范围与所述接收端所反馈的所述第二波束级的最优
波束相对应的第三波束级的波束;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;The transmitting end determines an optimal coverage of the coverage and the second beam level fed back by the receiving end
a beam of a third beam level corresponding to the beam; wherein a coverage of the beam of the second beam level is greater than a beam of the third beam level, and a coverage of each of the second beam stages respectively corresponds to The coverage of one or more of the third beam stages;
所述发送端使用所确定的一个或多个所述第三波束级的波束发送专用控制信道;Transmitting, by the transmitting end, a dedicated control channel by using the determined beam of one or more of the third beam stages;
所述发送端使用所述接收端所反馈的所述第三波束级的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam of the third beam level fed back by the receiving end.
可选地,所述发送端使用所确定的一个或多个所述第三波束级的波束发送专用控制信道包括:Optionally, the sending, by the sending end, using the determined one or more beams of the third beam level to transmit a dedicated control channel includes:
所述发送端在所确定的一个所述第三波束级的波束上发送所述专用控制信道,或在所确定的多个所述第三波束级的波束上遍历发送所述专用控制信道;不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。Transmitting, by the transmitting end, the dedicated control channel on the determined beam of the third beam level, or traversing and transmitting the dedicated control channel on the determined beams of the third beam level; different Any one or any of the following resources used by the beam: time domain resources, frequency domain resources, and code domain resources.
可选地,所述发送端使用接收端反馈的最优波束发送用户数据包括:Optionally, the transmitting end sends the user data by using the optimal beam fed back by the receiving end, including:
所述发送端使用所述接收端所反馈的所述第二波束级的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam of the second beam level fed back by the receiving end.
可选地,所述发送端使用第一波束级的波束发送公共信道的信号包括:Optionally, the transmitting, by using the beam of the first beam level, the signal of the common channel includes:
所述发送端在所述第一波束级中的所有波束上遍历发送所述公共信道,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The transmitting end traverses and transmits the common channel on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
可选地,所述发送端使用第二波束级的波束发送参考信号包括:Optionally, the sending, by the sending end, using the beam of the second beam level to transmit the reference signal includes:
所述发送端在所述第二波束级中的所有波束上遍历发送所述参考信号,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The transmitting end traverses and transmits the reference signal on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
一种采用波束赋形的数据通信方法,包括:A data communication method using beamforming, comprising:
接收端通过第一波束级的波束接收公共信道的信号;
The receiving end receives the signal of the common channel through the beam of the first beam stage;
所述接收端通过第二波束级的波束接收参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;Receiving, by the receiving end, a reference signal by using a beam of the second beam level; wherein, a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;
所述接收端反馈所述第二波束级的最优波束。The receiving end feeds back an optimal beam of the second beam stage.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,所述接收端通过第一波束级的波束接收公共信道的信号后还包括:Optionally, after the receiving end receives the signal of the common channel by using the beam of the first beam level, the method further includes:
所述接收端根据所接收的同步信号或发现信号确定所述第一波束级中的最优波束;The receiving end determines an optimal beam in the first beam level according to the received synchronization signal or discovery signal;
所述接收端在所述第一波束级中的最优波束对应的以下资源中的任一种或任意组合中解调所述广播信号:时域资源,频域资源、码域资源。The receiving end demodulates the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
可选地,所述接收端通过第二波束级的波束接收参考信号后还包括:Optionally, after the receiving end receives the reference signal by using the beam of the second beam level, the method further includes:
所述接收端在覆盖范围与所述第一波束级的最优波束对应的所述第二波束级的一个或多个波束中,根据所接收的参考信号确定所述第二波束级的最优波束;其中,所述第一波束级中每个波束的覆盖范围分别对应于所述第二波束级中的一个或多个波束的覆盖范围。Determining, by the receiving end, an optimality of the second beam level according to the received reference signal in one or more beams of the second beam level corresponding to an optimal beam of the first beam level a beam; wherein a coverage of each of the first beam stages corresponds to a coverage of one or more of the second beam levels, respectively.
可选地,所述接收端反馈所述第二波束级的最优波束后还包括:Optionally, after the receiving end feeds back the optimal beam of the second beam level, the method further includes:
所述接收端通过覆盖范围与所述第二波束级的最优波束对应的所述第三波束级的一个或多个波束接收专用控制信道的信号;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;Receiving, by the receiving end, a signal of a dedicated control channel by one or more beams of the third beam level corresponding to an optimal beam of the second beam level; wherein, the beam of the second beam level a coverage that is greater than a beam of the third beam level, and a coverage of each of the second beam levels respectively corresponds to a coverage of one or more of the third beam stages;
所述接收端在接收所述专用控制信道所使用的第三波束级的波束中,根据所接收的专用控制信道的信号确定所述第三波束级的最优波束并反馈;The receiving end determines, according to the received signal of the dedicated control channel, an optimal beam of the third beam level and feedbacks the beam in the third beam level used by the receiving the dedicated control channel;
所述接收端通过所述第三波束级的最优波束接收用户数据。The receiving end receives user data through an optimal beam of the third beam level.
可选地,所述接收端反馈所述第二波束级的最优波束后还包括:Optionally, after the receiving end feeds back the optimal beam of the second beam level, the method further includes:
所述接收端通过所述第二波束级的最优波束接收用户数据。
The receiving end receives user data through an optimal beam of the second beam level.
一种采用波束赋形的数据通信装置,设置于发送端,包括:A data communication device using beamforming, which is disposed at a transmitting end, and includes:
第一发送模块,设置为:使用第一波束级的波束发送公共信道的信号;a first sending module, configured to: use a beam of a first beam level to transmit a signal of a common channel;
第二发送模块,设置为:使用第二波束级的波束发送参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;a second sending module, configured to: transmit a reference signal by using a beam of the second beam level; wherein, a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;
第三发送模块,设置为:使用接收端反馈的最优波束发送用户数据。The third sending module is configured to: send user data by using an optimal beam fed back by the receiving end.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,所述第三发送模块包括:Optionally, the third sending module includes:
确定单元,设置为:确定覆盖范围与所述接收端所反馈的所述第二波束级的最优波束相对应的第三波束级的波束;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;a determining unit, configured to: determine a beam of a third beam level corresponding to an optimal beam of the second beam level that is fed back by the receiving end; wherein a coverage of the beam of the second beam level a beam larger than the third beam level, where a coverage of each of the second beam levels respectively corresponds to a coverage of one or more of the third beam levels;
专用控制信道发送单元,设置为:使用所确定的一个或多个所述第三波束级的波束发送专用控制信道;a dedicated control channel sending unit, configured to: transmit a dedicated control channel by using the determined one or more beams of the third beam level;
用户数据发送单元,设置为:使用所述接收端所反馈的所述第三波束级的最优波束发送用户数据。The user data sending unit is configured to: send user data by using an optimal beam of the third beam level fed back by the receiving end.
可选地,所述专用控制信道发送单元是设置为:Optionally, the dedicated control channel sending unit is configured to:
在所确定的一个所述第三波束级的波束上发送所述专用控制信道,或在所确定的多个所述第三波束级的波束上遍历发送所述专用控制信道;不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。Transmitting the dedicated control channel on the determined beam of the third beam level, or traversing and transmitting the dedicated control channel on the determined beams of the third beam stage; different beams are used Any of the following or any of the following resources are different: time domain resources, frequency domain resources, and code domain resources.
可选地,所述第三发送模块是设置为:Optionally, the third sending module is configured to:
使用所述接收端所反馈的所述第二波束级的最优波束发送用户数据。User data is transmitted using an optimal beam of the second beam level fed back by the receiving end.
可选地,所述第一发送模块是设置为:Optionally, the first sending module is configured to:
在所述第一波束级中的所有波束上遍历发送所述公共信道,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。
The common channel is traversed on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
可选地,所述第二发送模块是设置为:Optionally, the second sending module is configured to:
在所述第二波束级中的所有波束上遍历发送所述参考信号,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The reference signal is traversed on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
一种采用波束赋形的数据通信装置,设置于接收端,包括:A data communication device using a beamforming device is disposed at the receiving end and includes:
第一接收模块,设置为:通过第一波束级的波束接收公共信道的信号;The first receiving module is configured to: receive a signal of the common channel by using a beam of the first beam level;
第二接收模块,设置为:通过第二波束级的波束接收参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;The second receiving module is configured to receive the reference signal by using the beam of the second beam level, where the coverage of the beam of the first beam stage is greater than the beam of the second beam stage;
第一反馈模块,设置为:反馈所述第二波束级的最优波束。The first feedback module is configured to: feed back an optimal beam of the second beam level.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,所述第一接收模块还设置为:在通过第一波束级的波束接收公共信道的信号后,根据所接收的同步信号或发现信号确定所述第一波束级中的最优波束;在所述第一波束级中的最优波束对应的以下资源中的任一种或任意组合中解调所述广播信号:时域资源,频域资源、码域资源。Optionally, the first receiving module is further configured to: after receiving the signal of the common channel by using the beam of the first beam level, determining an optimal beam in the first beam level according to the received synchronization signal or the discovery signal And demodulating the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
可选地,所述第一接收模块还设置为:在通过第二波束级的波束接收参考信号后,在覆盖范围与所述第一波束级的最优波束对应的所述第二波束级的一个或多个波束中,根据所接收的参考信号确定所述第二波束级的最优波束;其中,所述第一波束级中每个波束的覆盖范围分别对应于所述第二波束级中的一个或多个波束的覆盖范围。Optionally, the first receiving module is further configured to: after receiving the reference signal by using the beam of the second beam level, the second beam level corresponding to the optimal beam of the first beam level after coverage Determining, in the one or more beams, an optimal beam of the second beam level according to the received reference signal; wherein, a coverage of each of the first beam stages respectively corresponds to the second beam level The coverage of one or more beams.
可选地,所述的装置还包括:Optionally, the device further includes:
第三接收模块,设置为:通过覆盖范围与所述第二波束级的最优波束对应的所述第三波束级的一个或多个波束接收专用控制信道的信号;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;a third receiving module, configured to: receive, by using one or more beams of the third beam level corresponding to an optimal beam of the second beam level, a signal of a dedicated control channel; wherein the second beam The coverage of the beam of the level is greater than the beam of the third beam level, and the coverage of each of the second beam stages respectively corresponds to the coverage of one or more of the third beam stages;
第二反馈模块,设置为:在接收所述专用控制信道所使用的第三波束级
的波束中,根据所接收的专用控制信道的信号确定所述第三波束级的最优波束并反馈;a second feedback module, configured to: receive a third beam level used by the dedicated control channel
And determining, according to the received signal of the dedicated control channel, an optimal beam of the third beam level and feedback;
用户数据接收模块,设置为:通过所述第三波束级的最优波束接收用户数据。The user data receiving module is configured to: receive user data by using an optimal beam of the third beam level.
可选地,所述的装置还包括:Optionally, the device further includes:
用户数据接收模块,设置为:通过所述第二波束级的最优波束接收用户数据。The user data receiving module is configured to: receive user data by using an optimal beam of the second beam level.
一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述任一项的方法。A computer readable storage medium storing computer executable instructions for performing the method of any of the above.
采用本发明实施例所提供的分层多级的波束赋形方式下的数据通信方法和装置,提高发送侧和接收侧之间波束训练的效率,增强波束跟踪的性能,保证高频段下无线通信质量。The data communication method and device in the layered multi-level beamforming mode provided by the embodiment of the present invention improves beam training efficiency between the transmitting side and the receiving side, enhances beam tracking performance, and ensures wireless communication in a high frequency band. quality.
在阅读并理解了附图和详细描述后,可以明白其他方面。Other aspects will be apparent upon reading and understanding the drawings and detailed description.
附图概述BRIEF abstract
图1为实施例一的采用波束赋形的数据通信方法的流程示意图;1 is a schematic flow chart of a data communication method using beamforming according to Embodiment 1;
图2为实施例二的采用波束赋形的数据通信方法的流程示意图;2 is a schematic flow chart of a data communication method using beamforming in Embodiment 2;
图3为实施示例一~三中高频段下采用波束赋形的移动通信场景示意图;3 is a schematic diagram of a mobile communication scenario using beamforming in a high frequency band in the first to third embodiments;
图4(a)、(b)、(c)为实施示例一~三中不同级别波束的覆盖示意图;4(a), (b), and (c) are schematic diagrams of coverage of different levels of beams in the first to third embodiments;
图5为实施示例一的流程示意图;5 is a schematic flow chart of Embodiment 1;
图6为实施示例一中多个波束在不同时间域发送信号的示意图;6 is a schematic diagram of transmitting signals in different time domains by multiple beams in Embodiment 1;
图7为实施示例一中采用波束赋形发送同步信号和广播信号的示意图;7 is a schematic diagram of transmitting a synchronization signal and a broadcast signal by using beamforming in the first embodiment;
图8为实施示例一中采用波束赋形发送专用控制信道的示意图;
8 is a schematic diagram of a dedicated control channel for transmitting a beamforming in Embodiment 1;
图9为实施示例二中多个波束在不同频域发送信号的示意图;9 is a schematic diagram of transmitting signals in different frequency domains by multiple beams in Embodiment 2;
图10为多个波束在不同码域发送信号的示意图;10 is a schematic diagram of multiple beams transmitting signals in different code domains;
图11为实施示例二中采用波束赋形发送同步信号和广播信号的示意图;11 is a schematic diagram of transmitting a synchronization signal and a broadcast signal by using beamforming in Embodiment 2;
图12为实施示例三中采用波束赋形发送专用控制信道的示意图;12 is a schematic diagram of a dedicated control channel using beamforming transmission in Embodiment 3;
图13为实施示例三的流程示意图;13 is a schematic flow chart of Embodiment 3;
图14为实施例三的采用波束赋形的数据通信装置的示意图;14 is a schematic diagram of a data communication apparatus using beamforming in Embodiment 3;
图15为实施例四的采用波束赋形的数据通信装置的示意图。15 is a schematic diagram of a data communication apparatus using beamforming in the fourth embodiment.
下面将结合附图及实施例对本发明的实施方式进行说明。Embodiments of the present invention will be described below with reference to the drawings and embodiments.
需要说明的是,如果不冲突,本发明实施例以及实施例中的特征可以相互结合。另外,虽然在流程图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。It should be noted that the features of the embodiments of the present invention and the embodiments may be combined with each other if they do not conflict. Additionally, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.
实施例一、一种采用波束赋形的数据通信方法,如图1所示,包括:Embodiment 1 A data communication method using beamforming, as shown in FIG. 1, includes:
S110、发送端使用第一波束级的波束发送公共信道的信号;S110. The transmitting end sends a signal of the common channel by using a beam of the first beam level.
S120、所述发送端使用第二波束级的波束发送参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;S120. The transmitting end sends a reference signal by using a beam of a second beam level, where a coverage of the beam of the first beam stage is greater than a beam of the second beam stage.
S130、所述发送端使用接收端反馈的最优波束发送用户数据。S130. The sending end sends user data by using an optimal beam fed back by the receiving end.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,在一种实施方式中,所述S130包括:Optionally, in an implementation manner, the S130 includes:
所述发送端确定覆盖范围与所述接收端所反馈的所述第二波束级的最优波束相对应的第三波束级的波束;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;The transmitting end determines a beam of a third beam level that corresponds to an optimal beam of the second beam level that is fed back by the receiving end; wherein a coverage of the beam of the second beam level is greater than a beam of a third beam level, the coverage of each of the second beam stages respectively corresponding to a coverage of one or more of the third beam stages;
所述发送端使用所确定的一个或多个所述第三波束级的波束发送专用控
制信道;The transmitting end uses the determined beam transmission specific control of one or more of the third beam levels
Channel
所述发送端使用所述接收端所反馈的所述第三波束级的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam of the third beam level fed back by the receiving end.
本实施方式中,采用分层多级的波束赋形方式,可以但不限于将通信过程中的波束赋形和波束训练过程分为三个级别:第一波束级(也可称为宽波束级),第二波束级(也可称为窄波束级)和第三波束级(也可称为超窄波束级);其中,宽波束级中的每个波束的覆盖范围分别对应于窄波束级中的一个或多个波束的覆盖范围,窄波束级中每个波束的覆盖范围只对应于一个宽波束级的波束的覆盖范围;窄波束级中的每个波束的覆盖范围分别对应于超窄波束级中的一个或多个波束的覆盖范围,超窄波束级中每个波束的覆盖范围只对应于一个窄波束级的波束的覆盖范围。不同级别的波束可以用级别ID(标识)来进行区分,同一级别内的波束用不同的波束ID来区分,可以根据每个波束的实际覆盖范围建立三个级别波束ID之间在覆盖范围上的对应关系。In this embodiment, a layered multi-stage beamforming manner may be adopted, which may be, but is not limited to, dividing a beamforming and a beam training process in a communication process into three levels: a first beam level (also referred to as a wide beam level). a second beam level (also referred to as a narrow beam level) and a third beam level (also referred to as an ultra-narrow beam level); wherein the coverage of each of the wide beam stages corresponds to a narrow beam level, respectively The coverage of one or more beams in the narrow beam level, the coverage of each beam only corresponds to the coverage of a beam of a wide beam level; the coverage of each beam in the narrow beam level corresponds to an ultra narrow Coverage of one or more beams in the beam level, the coverage of each beam in the ultra-narrow beam level corresponds only to the coverage of a beam of a narrow beam level. Different levels of beams can be distinguished by level ID (identification). Beams in the same level are distinguished by different beam IDs. The coverage of three levels of beam IDs can be established according to the actual coverage of each beam. Correspondence relationship.
本实施方式中,将物理层信道和信号分为四类,公共信道,参考信号,专用控制信道和专用数据信道。其中公共信道发送同步信号,广播信号,寻呼信号,***消息和公共控制信令等;参考信号用于信道状态信息估计,以及获取窄波束级最优波束信息等;专用控制信道发送移动用户或设备专用的信号和控制信令,如超窄波束训练信号,调度消息,信道质量反馈信息,功控信息等;专用数据信道发送移动用户或设备的业务数据。In this embodiment, the physical layer channel and signal are classified into four types, a common channel, a reference signal, a dedicated control channel, and a dedicated data channel. The common channel transmits a synchronization signal, a broadcast signal, a paging signal, a system message, and a common control signaling; the reference signal is used for channel state information estimation, and the narrow beam level optimal beam information is acquired; and the dedicated control channel transmits the mobile user or Equipment-specific signal and control signaling, such as ultra-narrow beam training signals, scheduling messages, channel quality feedback information, power control information, etc.; dedicated data channels to transmit service data of mobile users or devices.
上述物理层信道和信号采用分层多级的波束赋形的方式发送,波束的波瓣宽度和波束个数分别对应于上述波束赋形的不同级别。The physical layer channels and signals are transmitted in a hierarchical multi-stage beamforming manner, and the beam lobe width and the number of beams respectively correspond to different levels of the beamforming described above.
可选地,所述发送端使用所确定的一个或多个所述第三波束级的波束发送专用控制信道包括:Optionally, the sending, by the sending end, using the determined one or more beams of the third beam level to transmit a dedicated control channel includes:
所述发送端在所确定的一个所述第三波束级的波束上发送所述专用控制信道,或在所确定的多个所述第三波束级的波束上遍历发送所述专用控制信道,即:所确定的第三波束级的波束只有一个时,就在该波束上发送专用控制信道,如果有多个,则遍历这多个波束发送专用控制信道;不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。
Transmitting, by the transmitting end, the dedicated control channel on a beam of the determined one of the third beam stages, or traversing and transmitting the dedicated control channel on the determined beams of the third beam stage, ie : when there is only one beam of the determined third beam level, the dedicated control channel is transmitted on the beam, and if there are multiple, the dedicated control channel is traversed by the multiple beams; the following ones are used by different beams Or any of several resources are different: time domain resources, frequency domain resources, code domain resources.
可选地,在另一种实施方式中,所述S130包括:Optionally, in another implementation manner, the S130 includes:
所述发送端使用所述接收端所反馈的所述第二波束级的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam of the second beam level fed back by the receiving end.
可选地,所述步骤S110包括:Optionally, the step S110 includes:
所述发送端在所述第一波束级中的所有波束上遍历发送所述公共信道,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The transmitting end traverses and transmits the common channel on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
可选地,所述步骤S120包括:Optionally, the step S120 includes:
所述发送端在所述第二波束级中的所有波束上遍历发送所述参考信号,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The transmitting end traverses and transmits the reference signal on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
实施例二、一种采用波束赋形的数据通信方法,如图2所示,包括:Embodiment 2 A data communication method using beamforming, as shown in FIG. 2, includes:
S210、接收端通过第一波束级的波束接收公共信道的信号;S210. The receiving end receives a signal of a common channel by using a beam of the first beam level.
S220、所述接收端通过第二波束级的波束接收参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;S220, the receiving end receives a reference signal by using a beam of the second beam level, where a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;
S230、所述接收端反馈所述第二波束级的最优波束。S230. The receiving end feeds back an optimal beam of the second beam stage.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,所述步骤S210后还包括:Optionally, after the step S210, the method further includes:
所述接收端根据所接收的同步信号或发现信号确定所述第一波束级中的最优波束;The receiving end determines an optimal beam in the first beam level according to the received synchronization signal or discovery signal;
所述接收端在所述第一波束级中的最优波束对应的以下资源中的任一种或任意组合中解调所述广播信号:时域资源,频域资源、码域资源。The receiving end demodulates the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
本可选方式中,所述步骤S220后还可以包括:In this optional manner, after the step S220, the method may further include:
所述接收端在覆盖范围与所述第一波束级的最优波束对应的所述第二波束级的一个或多个波束中,根据所接收的参考信号确定所述第二波束级的最
优波束;其中,所述第一波束级中每个波束的覆盖范围分别对应于所述第二波束级中的一个或多个波束的覆盖范围。Determining, by the receiving end, one of the second beam level according to the received reference signal, in one or more beams of the second beam level corresponding to an optimal beam of the first beam level
An optimal beam; wherein a coverage of each of the first beam stages corresponds to a coverage of one or more of the second beam levels, respectively.
可选地,在一种实施方式中,所述S230后还包括:Optionally, in an implementation manner, after S230, the method further includes:
所述接收端通过覆盖范围与所述第二波束级的最优波束对应的所述第三波束级的一个或多个波束接收专用控制信道的信号;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;Receiving, by the receiving end, a signal of a dedicated control channel by one or more beams of the third beam level corresponding to an optimal beam of the second beam level; wherein, the beam of the second beam level a coverage that is greater than a beam of the third beam level, and a coverage of each of the second beam levels respectively corresponds to a coverage of one or more of the third beam stages;
所述接收端在波束中,根据所接收的专用控制信道的信号确定所述第三波束级的最优波束并反馈;The receiving end determines, in the beam, an optimal beam of the third beam level and feedback according to the received signal of the dedicated control channel;
所述接收端通过所述第三波束级的最优波束接收用户数据。The receiving end receives user data through an optimal beam of the third beam level.
可选地,在另一种实施方式中,所述S230后还包括:Optionally, in another implementation manner, after the S230, the method further includes:
所述接收端通过所述第二波束级的最优波束接收用户数据。The receiving end receives user data through an optimal beam of the second beam level.
下面用一个例子说明上述两个实施例,该例子中所述第一、第二、第三波束级分别为宽波束级、窄波束级和超窄波束级,该例子的实现过程包括步骤301~308:The foregoing two embodiments are described by using an example. In the example, the first, second, and third beam levels are respectively a wide beam level, a narrow beam level, and an ultra-narrow beam level. The implementation process of the example includes the step 301. 308:
步骤301:发送端(比如但不限于基站或传输节点等)在公共信道中发送同步信号或发现信号,以及广播信号,发射端发送公共信道的信号时,按照宽波束级波束赋形方式进行发送。公共信道的信号在宽波束级中的所有波束上遍历发送,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源;其中,广播信号中包含但不限于以下信息:三个级别波束之间在覆盖范围上的对应关系信息等,该对应关系信息中,每个波束可以分别用级别ID+波束ID唯一标识;同步信号和广播信号所在的时域,频域或码域资源信息以及对应的宽波束级的波束的ID信息;参考信号所在的时域,频域或码域资源信息以及对应的级别内的波束的ID信息;Step 301: The transmitting end (such as but not limited to a base station or a transmitting node, etc.) sends a synchronization signal or a discovery signal in a common channel, and a broadcast signal. When the transmitting end transmits the signal of the common channel, the transmitting end transmits according to the wide beam level beamforming manner. . The signals of the common channel are traversed and transmitted on all the beams in the wide beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domain resources; wherein, in the broadcast signal The information includes, but is not limited to, the following information: the correspondence information between the three levels of the beam on the coverage area. In the correspondence information, each beam can be uniquely identified by the level ID + the beam ID; when the synchronization signal and the broadcast signal are located Domain, frequency domain or code domain resource information and ID information of a corresponding wide beam level beam; time domain in which the reference signal is located, frequency domain or code domain resource information, and ID information of a beam within a corresponding level;
步骤302:接收端(比如但不限于为移动用户或设备)在宽波束级的所有波束对应的时间域,频域或者码域检测同步信号或发现信号,按照相应性能评估准则如检测到的信号能量,接收信号强度,信干噪比等确定宽波束级
的最优波束;在该最优波束对应的时域,频域或码域资源中解调广播信号。根据解调得到的广播信号内的信息,接收端确定最优波束的ID信息,并将宽波束级的最优波束的ID信息反馈给发送端;Step 302: The receiving end (such as but not limited to being a mobile user or device) detects a synchronization signal or a discovery signal in a time domain, a frequency domain or a code domain corresponding to all beams of the wide beam level, according to corresponding performance evaluation criteria such as the detected signal. Energy, received signal strength, signal to interference and noise ratio, etc. determine the wide beam level
Optimal beam; demodulate the broadcast signal in the time domain, frequency domain or code domain resource corresponding to the optimal beam. According to the information in the broadcast signal obtained by the demodulation, the receiving end determines the ID information of the optimal beam, and feeds back the ID information of the optimal beam of the wide beam level to the transmitting end;
步骤303:发送端采用窄波束级波束赋形方式发送参考信号。参考信号周期性的在窄波束级中的所有波束上遍历发送,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源;Step 303: The transmitting end sends the reference signal by using a narrow beam level beamforming manner. The reference signal is periodically traversed and transmitted on all the beams in the narrow beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources;
步骤304:接收端根据三个级别波束之间的对应关系信息,确定宽波束级的最优波束对应的所有窄波束级的波束的ID信息,然后在所确定的所有窄波束级的波束对应的时频码域资源上接收参考信号,按照相应性能评估准则如接收信号强度,信干噪比等确定窄波束级的最优波束(一个或多个),并将该最优波束的ID信息反馈给发送端;Step 304: The receiving end determines ID information of beams of all narrow beam levels corresponding to the optimal beam of the wide beam level according to the correspondence information between the three level beams, and then corresponds to the determined beams of all the narrow beam levels. The reference signal is received on the time-frequency code domain resource, and the optimal beam (one or more) of the narrow beam level is determined according to the corresponding performance evaluation criteria, such as the received signal strength, the signal to interference and noise ratio, and the ID information of the optimal beam is fed back. To the sender;
步骤305:发送端接收所述接收端反馈的窄波束级的最优波束的ID信息后,根据上述三个级别波束之间的对应关系信息,得到和该移动用户或设备相关的窄波束级的最优波束ID对应的超窄波束级的波束的ID信息列表;Step 305: After receiving the ID information of the optimal beam of the narrow beam level fed back by the receiving end, the transmitting end obtains a narrow beam level related to the mobile user or device according to the correspondence information between the three levels of beams. a list of ID information of beams of the ultra-narrow beam level corresponding to the optimal beam ID;
步骤306:发送端按照超窄波束级波束赋形方式发送专用控制信道的信号;专用控制信道在多个超窄波束上发送,包括上述窄波束级的最优波束对应的超窄波束级的波束的ID信息列表中的所有波束。不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源;发送端在发送专用控制信道的同时,可以发送级别内波束的ID信息,或者将波束的ID信息隐藏在时间域,频域或码域资源中;Step 306: The transmitting end sends the signal of the dedicated control channel according to the ultra-narrow beam-level beamforming manner; the dedicated control channel is sent on multiple ultra-narrow beams, including the ultra-narrow beam-level beam corresponding to the optimal beam of the narrow beam level. All beams in the ID information list. The following ones or any of the resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources; the transmitting end may send the ID information of the beam within the level while transmitting the dedicated control channel, or The ID information of the beam is hidden in the time domain, the frequency domain or the code domain resource;
步骤307:接收端在相应的时频码域资源中接收专用控制信道中的信号,按照相应性能评估准则如接收信号强度,信干噪比等确定最优波束集合;如专用控制信道中同时发送波束的ID信息,则接收端反馈级别内最优波束的ID信息到发送端;如波束的ID信息隐藏在时间域,频域或码域中,则接收端将最优波束对应的时间,频域或码字信息反馈给发送端,发送端根据时间域,频域或码字信息得到对应的最优波束的ID信息;Step 307: The receiving end receives the signal in the dedicated control channel in the corresponding time-frequency code domain resource, and determines the optimal beam set according to the corresponding performance evaluation criteria, such as the received signal strength, the signal to interference and noise ratio, and the like, and simultaneously sends the same in the dedicated control channel. The ID information of the beam, the ID information of the optimal beam in the feedback level of the receiving end is sent to the transmitting end; if the ID information of the beam is hidden in the time domain, the frequency domain or the code domain, the receiving end will match the time of the optimal beam. The domain or codeword information is fed back to the sending end, and the sending end obtains the ID information of the corresponding optimal beam according to the time domain, the frequency domain or the codeword information;
步骤308:发送端根据接收端反馈的超窄波束级别中最优波束的ID信息确定发送数据的波束方向,按照超窄波束级波束赋形方式发送用户数据。
Step 308: The transmitting end determines the beam direction of the transmitted data according to the ID information of the optimal beam in the ultra-narrow beam level fed back by the receiving end, and sends the user data according to the ultra-narrow beam level beamforming manner.
可选的,对于时延要求比较高,或是数据传输之前不需要调度等控制信令的***和网络,发送端在步骤304后可以不进行步骤305~308,改为进行下述步骤:Optionally, for a system and a network that have a relatively high delay requirement or a control signaling that does not need to be scheduled before the data transmission, the sending end may perform the following steps instead of performing steps 305-308 after step 304:
发送端根据接收端反馈的窄波束级的波束的ID信息,按照窄波束级波束赋形方式发送用户数据。The transmitting end sends the user data according to the narrow beam level beamforming manner according to the ID information of the beam of the narrow beam level fed back by the receiving end.
本发明实施例还提供一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述采用波束赋形的数据通信方法。The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the above data forming method using beamforming.
下面用三个实施示例说明上述实施例。以下实施示例中,将第一波束级称为宽波束级,第二波束级称为窄波束级,第三波束级称为超窄波束级。The above embodiment will be described below using three embodiment examples. In the following implementation examples, the first beam level is referred to as a wide beam level, the second beam level is referred to as a narrow beam level, and the third beam level is referred to as an ultra-narrow beam level.
实施示例一:Implementation example 1:
如图3所示,发送节点TP采用高频段为其覆盖下的MS(Mobile Subscriber,移动用户)提供高速数据服务。TP为具有波束赋形能力的节点,通过对天线相位上的权值赋形,可以形成不同形状和方向的波束。TP通过波束赋形的方式同时为多个MS(比如图1中的第一移动用户及第二移动用户)提供服务。As shown in FIG. 3, the transmitting node TP uses a high frequency band to provide high-speed data services for its covered MS (Mobile Subscriber). TP is a node with beamforming capability. By shaping the weights on the antenna phase, beams of different shapes and directions can be formed. The TP simultaneously provides services for multiple MSs (such as the first mobile user and the second mobile user in FIG. 1) by means of beamforming.
由于高频段下路径损耗较大,为了保证覆盖,采用波束赋形的方式形成具有方向性的波束来增加天线增益,提升信号接收强度。波束宽度(通常情况下用3dB波瓣宽度来衡量)越窄,天线带来的增益越大。Due to the large path loss in the high frequency band, in order to ensure coverage, beamforming is used to form a directional beam to increase the antenna gain and improve the signal receiving strength. The narrower the beamwidth (usually measured by the 3dB lobe width), the greater the gain from the antenna.
本实施示例中,为满足同步和广播信号的覆盖,发送同步和广播信号的单个波束波瓣宽度为40度,采用三个相同波瓣宽度的波束,其主瓣方向分别为40度,0度和-40度,覆盖水平面120度区域,如图4(a)中所示的波束0-0、波束0-1及波束0-2,这三个波束都是宽波束级的波束,级别ID为0,波束ID分别为0、1、2。窄波束级和超窄波束级的波束用于发送参考信号,专用控制信道的信号以及用户数据。在本实施例中,每个宽波束对应3个窄波束,一共9个窄波束,级别ID为1,波束ID为0~8,如图4(b)中所示的波束1-0、波束1-1、波束1-2、波束1-3、波束1-4、波束1-5、波束
1-6、波束1-7和波束1-8;每个窄波束对应3个超窄波束,一共27个超窄波束,级别ID为2,波束ID为0~26如图4(c)中所示的波束2-k、波束2-k+1和波束2-k+2就是27个超窄波束中的3个,其中k为整数,0≤k≤24。根据覆盖特性,波束之间的关系如表1所示。In this embodiment, in order to satisfy the coverage of the synchronization and broadcast signals, the single beam lobe width of the transmission synchronization and broadcast signals is 40 degrees, and three beams of the same lobe width are used, and the main lobe directions are 40 degrees and 0 degrees, respectively. And -40 degrees, covering the 120 degree area of the horizontal plane, as shown in Figure 4 (a), beam 0-0, beam 0-1 and beam 0-2, these three beams are beams of wide beam level, level ID 0, the beam ID is 0, 1, 2, respectively. Beams of narrow beam level and ultra-narrow beam level are used to transmit reference signals, dedicated control channel signals, and user data. In this embodiment, each wide beam corresponds to three narrow beams, a total of nine narrow beams, a level ID of 1, and a beam ID of 0-8, as shown in FIG. 4(b), beam 1-0, beam 1-1, beam 1-2, beam 1-3, beam 1-4, beam 1-5, beam
1-6, beam 1-7 and beam 1-8; each narrow beam corresponds to 3 ultra-narrow beams, a total of 27 ultra-narrow beams, level ID 2, beam ID 0 to 26 as shown in Figure 4 (c) The illustrated beam 2-k, beam 2-k+1 and beam 2-k+2 are three of the 27 ultra-narrow beams, where k is an integer and 0 ≤ k ≤ 24. According to the coverage characteristics, the relationship between the beams is as shown in Table 1.
表1、波束覆盖关系对应表Table 1. Beam coverage relationship correspondence table
本实施示例中数据通信的流程图参考图5,包括步骤501~514。The flowchart of the data communication in this embodiment example refers to FIG. 5 and includes steps 501 to 514.
501、TP使用宽波束级的波束发送同步信号给MS。501. The TP transmits a synchronization signal to the MS using a beam of a wide beam level.
502、TP使用宽波束级的波束发送广播信号给MS。502. The TP sends a broadcast signal to the MS by using a beam of a wide beam level.
上述两个步骤中,TP在发送同步信号和广播信号时,采用宽波束级的波束赋形,在不同的时间段分别发送如图4(a)所示的3个不同方向的宽波束级的波束,如图6所示,在时间段t1发送所述波束0-0,在时间段t2发送所述波束0-1,在时间段t3发送所述波束0-2)。广播信号中包含但不限于以下信息:***消息;三个级别的波束之间在覆盖范围上的对应关系信息等,该对应关系信息中,每个波束可以分别用级别ID+波束ID唯一标识;同步信号和广播信号所在的时域信息以及对应的宽波束级的波束的ID信息(包括级别ID及波束ID);参考信号所在的时域信息以及对应的级别内的波束的ID信息。In the above two steps, when the TP transmits the synchronization signal and the broadcast signal, the beamforming is performed at a wide beam level, and the wide beam level of three different directions as shown in FIG. 4(a) is respectively transmitted in different time periods. The beam, as shown in Figure 6, transmits the beam 0-0 during time period t1, transmits the beam 0-1 during time period t2, and transmits the beam 0-2) during time period t3. The broadcast signal includes, but is not limited to, the following information: system message; correspondence information of coverage between the three levels of the beam, etc., in the correspondence information, each beam can be uniquely identified by the level ID + the beam ID; The time domain information of the signal and the broadcast signal and the ID information of the beam of the corresponding wide beam level (including the level ID and the beam ID); the time domain information of the reference signal and the ID information of the beam within the corresponding level.
在时间域上,广播信号位于同步信号之后发送,且周期性发送,如图7所示。In the time domain, the broadcast signal is transmitted after the synchronization signal and is transmitted periodically, as shown in FIG.
503、MS取得同步,并确定宽波束级中最优波束的ID信息。503. The MS obtains synchronization and determines ID information of the optimal beam in the wide beam level.
本步骤中,接收侧MS在时间轴上检测同步信号,三个级别的波束之间在覆盖范围上的对应关系信息和***消息等信息。MS随后检测t2’时刻和t3’时刻的同步信号,比较t1’时刻、t2’时刻和t3’时刻检测到的同步信号的峰值信息,确定宽波束级的最优波束的ID信息。
In this step, the receiving side MS detects the synchronization signal on the time axis, the correspondence information on the coverage between the three levels of beams, and the system message and the like. The MS then detects the synchronization signals at the time t2' and the time t3', compares the peak information of the synchronization signal detected at the time t1', the time t2', and the time t3', and determines the ID information of the optimum beam at the wide beam level.
504、MS在该最优波束对应的资源中解调广播信号。504. The MS demodulates the broadcast signal in the resource corresponding to the optimal beam.
本步骤中,在最优波束对应的资源上解调广播信号后,得到当前时刻发送的波束的ID信息,以及同步信号和广播信号其他波束对应的时域信息。505、MS反馈宽波束级中最优波束的ID信息给TP。In this step, after the broadcast signal is demodulated on the resource corresponding to the optimal beam, the ID information of the beam transmitted at the current time and the time domain information corresponding to the other signals of the synchronization signal and the broadcast signal are obtained. 505. The MS feeds back the ID information of the optimal beam in the wide beam level to the TP.
506、TP使用窄波束级的波束发送参考信号给MS。506. The TP sends a reference signal to the MS by using a beam of a narrow beam level.
本步骤中,TP采用窄波束级波束赋形方式发送参考信号,参考信号也是周期性发送,TP覆盖范围内的所有MS都使用相同的参考信号进行信道估计和窄波束级波束训练,因此TP需要在所有窄波束级别的波束上发送参考信号。在本实施示例中,考虑在时间域上进行波束的遍历。In this step, the TP uses a narrow beam-level beamforming method to transmit the reference signal, and the reference signal is also periodically transmitted. All the MSs in the TP coverage use the same reference signal for channel estimation and narrow beam-level beam training, so the TP needs The reference signal is transmitted on all narrow beam level beams. In this embodiment example, it is considered to perform traversal of the beam in the time domain.
507、MS获取CSI(Channel State Information,信道状态信息),并确定窄波束级中最优波束的ID信息。507. The MS acquires CSI (Channel State Information) and determines ID information of the optimal beam in the narrow beam level.
本步骤中,MS首先根据确定宽波束级中最优波束对应的窄波束级的波束,假设宽波束级的最优波束为波束0-1,根据表1,对应的窄波束级的波束为波束1-3,波束1-4和波束1-5。MS在这三个窄波束级的波束对应的时域资源上检测参考信号,比较三个波束上的信号强度,得到窄波束级的最优波束,假设为波束1-3。In this step, the MS first determines the beam of the narrow beam level corresponding to the optimal beam in the wide beam level, and assumes that the optimal beam of the wide beam level is the beam 0-1. According to Table 1, the beam of the corresponding narrow beam level is the beam. 1-3, beam 1-4 and beam 1-5. The MS detects the reference signal on the time domain resources corresponding to the beams of the three narrow beam levels, compares the signal strengths on the three beams, and obtains an optimal beam of a narrow beam level, which is assumed to be a beam 1-3.
508、MS将相应波束上的CSI以及窄波束级的最优波束的ID信息上报给TP。508. The MS reports the CSI on the corresponding beam and the ID information of the optimal beam of the narrow beam level to the TP.
509、TP进行调度和资源分配。509. The TP performs scheduling and resource allocation.
510、TP使用超窄波束级的波束发送专用控制信道给MS。510. The TP sends a dedicated control channel to the MS by using a beam of an ultra-narrow beam level.
上述两个步骤中,TP根据每个MS上报的CSI信息等,经过调度和资源分配,将相关调度信息等通过专用控制信道发送给MS。专用控制信道采用超窄波束级的波束赋形方式发送。TP根据MS上报的窄波束级的最优波束确定对应的超窄波束级的波束,根据表1,波束1-3对应的超窄波束级的波束为波束2-9,波束2-10,波束2-11。针对MS的专用控制信道的信号在这三个波束上发送。在本实施示例中,发送专用控制信道的不同波束在不同的频域资源上遍历发送,如图8所示。In the above two steps, the TP sends the relevant scheduling information and the like to the MS through the dedicated control channel after scheduling and resource allocation according to the CSI information reported by each MS. The dedicated control channel is transmitted in a beamforming manner with an ultra-narrow beam level. The TP determines the corresponding ultra-narrow beam-level beam according to the optimal beam of the narrow beam level reported by the MS. According to Table 1, the beam of the ultra-narrow beam level corresponding to the beam 1-3 is the beam 2-9, the beam 2-10, and the beam. 2-11. Signals for the dedicated control channel of the MS are transmitted on these three beams. In this embodiment example, different beams transmitting a dedicated control channel are traversed and transmitted on different frequency domain resources, as shown in FIG.
511、MS获取控制信息,并确定超窄波束级中最优波束的ID信息。
511. The MS acquires control information, and determines ID information of an optimal beam in the ultra-narrow beam level.
512、MS反馈超窄波束级中最优波束的ID信息给TP。512. The MS feeds back the ID information of the optimal beam in the ultra-narrow beam level to the TP.
上述两个步骤中,MS在f1,f2和f3三个频域资源上解调控制信令,根据解调得到的信干噪比确定超窄波束级的最优波束的ID信息,然后将该信息上报给发送端TP。In the above two steps, the MS demodulates the control signaling on the three frequency domain resources f1, f2, and f3, and determines the ID information of the optimal beam of the ultra-narrow beam level according to the signal to interference and noise ratio obtained by the demodulation, and then The information is reported to the sender TP.
513、TP使用超窄波束级的波束发送用户数据给MS。513. The TP uses the beam of the ultra-narrow beam level to transmit user data to the MS.
本步骤中,TP根据MS上报的超窄波束级的最优波束的ID信息采用相应的超窄波束级的波束发送用户数据给MS,按照该最优波束的ID信息对应的赋形方式进行波束赋形并发送。In this step, the TP uses the corresponding ultra-narrow beam-level beam to transmit user data to the MS according to the ID information of the optimal beam of the ultra-narrow beam level reported by the MS, and performs beam according to the shaping mode corresponding to the ID information of the optimal beam. Shape and send.
514、MS解码用户数据。514. The MS decodes the user data.
实施示例二:Implementation example two:
如图3所示,发送节点TP采用高频段为其覆盖下的MS提供高速数据服务。TP为具有波束赋形能力的节点,通过对天线相位上的权值赋形,可以形成不同形状和方向的波束。TP通过波束赋形的方式同时为多个MS提供服务。As shown in FIG. 3, the transmitting node TP uses a high frequency band to provide high-speed data services for the MS under its coverage. TP is a node with beamforming capability. By shaping the weights on the antenna phase, beams of different shapes and directions can be formed. The TP serves multiple MSs simultaneously by beamforming.
由于高频段下路径损耗较大,为了保证覆盖,采用波束赋形的方式形成具有方向性的波束来增加天线增益,提升信号接收强度。波束宽度(通常情况下用3dB波瓣宽度来衡量)越窄,天线带来的增益越大。本实施示例中,为满足同步和广播信号的覆盖,发送同步和广播信号的单个波束波瓣宽度为40度,采用三个相同波瓣宽度的波束,其主瓣方向分别为40度,0度和-40度,覆盖水平面120度区域,如图4(a)中所示的波束0-0、波束0-1及波束0-2,这三个波束都是宽波束级的波束,级别ID为0,波束ID分别为0、1、2。窄波束级和超窄波束级的波束用于发送参考信号,专用控制信道的信号以及用户数据。在本实施例中,每个宽波束对应3个窄波束,一共9个窄波束,级别ID为1,波束ID为0~8,如图4(b)中所示的波束1-0~波束1-8;每个窄波束对应3个超窄波束,一共27个超窄波束,级别ID为2,波束ID为0~26如图4(c)中所示的波束2-k、波束2-k+1和波束2-k+2就是27个超窄波束中的3个,其中k为整数,0≤k≤24。根据覆盖特性,波束之间的关
系如实施示例一中的表1所示。Due to the large path loss in the high frequency band, in order to ensure coverage, beamforming is used to form a directional beam to increase the antenna gain and improve the signal receiving strength. The narrower the beamwidth (usually measured by the 3dB lobe width), the greater the gain from the antenna. In this embodiment, in order to satisfy the coverage of the synchronization and broadcast signals, the single beam lobe width of the transmission synchronization and broadcast signals is 40 degrees, and three beams of the same lobe width are used, and the main lobe directions are 40 degrees and 0 degrees, respectively. And -40 degrees, covering the 120 degree area of the horizontal plane, as shown in Figure 4 (a), beam 0-0, beam 0-1 and beam 0-2, these three beams are beams of wide beam level, level ID 0, the beam ID is 0, 1, 2, respectively. Beams of narrow beam level and ultra-narrow beam level are used to transmit reference signals, dedicated control channel signals, and user data. In this embodiment, each wide beam corresponds to three narrow beams, a total of nine narrow beams, a level ID of 1, and a beam ID of 0-8, as shown in FIG. 4(b). 1-8; each narrow beam corresponds to 3 ultra-narrow beams, a total of 27 ultra-narrow beams, level ID 2, beam ID 0 to 26, as shown in Figure 4 (c) beam 2-k, beam 2 -k+1 and beam 2-k+2 are three of the 27 ultra-narrow beams, where k is an integer and 0 ≤ k ≤ 24. According to the coverage characteristics, the gap between the beams
It is as shown in Table 1 in the first embodiment.
本实施示例中数据通信的流程图参考图5,步骤同实施示例一的步骤501~514,但实现细节上略有不同,下面详细叙述。The flowchart of the data communication in the present embodiment refers to FIG. 5, and the steps are the same as steps 501 to 514 of the first embodiment, but the implementation details are slightly different, which will be described in detail below.
TP在发送同步和广播信号时,采用宽波束级别波束赋形,在不同的频域资源上分别发送如图4(a)所示的3个不同方向的宽波束,不同波束所使用的频域资源保持一定的间隔,以利于滤波器滤波,如图9所示,或者码域资源保持一定的间隔,如图10所示。广播信息中包含但不限于以下信息:***消息;三个级别的波束之间在覆盖范围上的对应关系信息等,该对应关系信息中,每个波束可以分别用级别ID+波束ID唯一标识;同步信号和广播信号所在的时域信息以及对应的宽波束级的波束的ID信息;参考信号所在的时域信息以及对应的级别内的波束的ID信息。When transmitting the synchronization and broadcast signals, the TP uses wide beam level beamforming to transmit three different broad beams in different directions as shown in Figure 4(a), and the frequency domain used by different beams. The resources are kept at a certain interval to facilitate filter filtering, as shown in Figure 9, or the code domain resources are kept at a certain interval, as shown in Figure 10. The broadcast information includes, but is not limited to, the following information: system message; correspondence information of coverage between three levels of beams, etc., in the correspondence information, each beam can be uniquely identified by level ID + beam ID; The time domain information of the signal and the broadcast signal and the ID information of the beam of the corresponding wide beam level; the time domain information of the reference signal and the ID information of the beam within the corresponding level.
在时间上,广播信号位于同步信号之后,且周期性发送,如图11所示。接收侧MS在对同步信号所在的三个频段f1,f2和f3(相应的频点信息可通过预先配置或相同站点的低频段网络广播信息获知)进行滤波后分别检测同步信号,如在f2上检测到有效的同步信号,则在随后相应的广播信道上解调广播信号,得到当前资源上发送的波束的ID信息,以及同步信号和广播信号其他波束的信息,三个级别的波束之间在覆盖范围上的对应关系信息和***消息等信息。MS比较在f1,f2和f3上检测到的同步信号的峰值信息,确定宽波束级中最优波束的ID信息,并将该最优波束的ID信息反馈给TP。In time, the broadcast signal is located after the sync signal and is transmitted periodically, as shown in FIG. The receiving side MS detects the synchronization signal after filtering the three frequency bands f1, f2 and f3 where the synchronization signal is located (the corresponding frequency point information can be known through pre-configured or low-band network broadcast information of the same station), for example, on f2. When a valid synchronization signal is detected, the broadcast signal is demodulated on the corresponding broadcast channel to obtain the ID information of the beam transmitted on the current resource, and the information of the synchronization signal and other beams of the broadcast signal, between the three levels of the beam. Correspondence information and system messages on the coverage area. The MS compares the peak information of the synchronization signal detected on f1, f2, and f3, determines the ID information of the optimal beam in the wide beam level, and feeds back the ID information of the optimal beam to the TP.
TP采用窄波束级波束赋形方式发送参考信号,参考信号也是周期性发送,TP覆盖范围内的所有MS都使用相同的参考信号进行信道估计和窄波束级波束训练,因此TP需要在所有窄波束级别的波束上发送参考信号。在本实施示例中,考虑在时间域上进行波束的遍历。MS根据宽波束级的最优波束的ID信息,假设为波束0-1,根据表1确定对应的窄波束级的波束为波束1-3,波束1-4和波束1-5。MS在这三个波束对应的时域资源上检测参考信号,比较三个波束上的信号强度,得到窄波束级的最优波束,假设为波束1-3。MS将相应波束上的CSI(Channel State Information,信道状态信息)以及窄波束级中最优波束的ID信息上报给TP。
The TP uses a narrow beam-level beamforming method to transmit reference signals. The reference signals are also periodically transmitted. All MSs in the TP coverage use the same reference signal for channel estimation and narrow beam-level beam training. Therefore, TP needs to be in all narrow beams. The reference signal is transmitted on the beam of the level. In this embodiment example, it is considered to perform traversal of the beam in the time domain. The MS determines the beam of the corresponding narrow beam level as beam 1-3, beam 1-4 and beam 1-5 according to the ID information of the optimal beam of the wide beam level, assuming beam 0-1. The MS detects the reference signal on the time domain resources corresponding to the three beams, compares the signal strengths on the three beams, and obtains an optimal beam at a narrow beam level, which is assumed to be a beam 1-3. The MS reports the CSI (Channel State Information) on the corresponding beam and the ID information of the optimal beam in the narrow beam level to the TP.
TP根据每个MS上报的CSI信息等,经过调度和资源分配,将相关调度信息等通过专用控制信道发送给MS。专用控制信道采用超窄波束级的波束赋形方式发送。TP根据MS上报的窄波束级别最优波束确定对应的超窄波束级的最优波束的ID信息,根据表1确定波束1-3对应的超窄波束级的波束为波束2-9,波束2-10,波束2-11。针对MS的专用控制信道的信号在这三个波束上发送。在本实施例中,发送专用控制信道的不同波束在不同的码域资源上遍历发送,如图12所示。三组天线赋形生成3个不同方向的波束,在相同的时频资源上,通过三个正交或准正交的码字进行扩频后发送,接收侧解调得到不同码字下的信号,根据解调得到的信干噪比确定超窄波束级的最优波束的ID信息,然后将超窄波束级的最优波束的ID信息上报给发送端TP。The TP sends the relevant scheduling information and the like to the MS through the dedicated control channel after scheduling and resource allocation according to the CSI information and the like reported by each MS. The dedicated control channel is transmitted in a beamforming manner with an ultra-narrow beam level. The TP determines the ID information of the optimal beam of the corresponding ultra-narrow beam level according to the narrow beam level optimal beam reported by the MS, and determines the beam of the ultra-narrow beam level corresponding to the beam 1-3 according to Table 1 as the beam 2-9, the beam 2 -10, beam 2-11. Signals for the dedicated control channel of the MS are transmitted on these three beams. In this embodiment, different beams transmitting a dedicated control channel are traversed and transmitted on different code domain resources, as shown in FIG. The three sets of antennas are shaped to generate three beams in different directions. On the same time-frequency resource, three orthogonal or quasi-orthogonal codewords are used for spreading and then transmitted, and the receiving side demodulates to obtain signals under different codewords. And determining the ID information of the optimal beam of the ultra-narrow beam level according to the signal-to-noise ratio obtained by the demodulation, and then reporting the ID information of the optimal beam of the ultra-narrow beam level to the transmitting end TP.
TP根据MS上报的超窄波束级的最优波束的ID信息采用相应的超窄波束级的波束发送用户数据,按照该最优波束的ID信息对应的赋形方式进行波束赋形并发送。The TP transmits the user data according to the ID information of the optimal beam of the ultra-narrow beam level reported by the MS, and uses the corresponding ultra-narrow beam level beam to transmit the user data, and performs beamforming and transmitting according to the shaping mode corresponding to the ID information of the optimal beam.
实施示例三:Implementation example three:
如图3所示,发送节点TP采用高频段为其覆盖下的MS提供高速数据服务。TP为具有波束赋形能力的节点,通过对天线相位上的权值赋形,可以形成不同形状和方向的波束。TP通过波束赋形的方式同时为多个MS提供服务。As shown in FIG. 3, the transmitting node TP uses a high frequency band to provide high-speed data services for the MS under its coverage. TP is a node with beamforming capability. By shaping the weights on the antenna phase, beams of different shapes and directions can be formed. The TP serves multiple MSs simultaneously by beamforming.
由于高频段下路径损耗较大,为了保证覆盖,采用波束赋形的方式形成具有方向性的波束来增加天线增益,提升信号接收强度。波束宽度(通常情况下用3dB波瓣宽度来衡量)越窄,天线带来的增益越大。本实施例中,为满足同步和广播信号的覆盖,发送同步和广播信号的单个波束波瓣宽度为40度,采用三个相同波瓣宽度的波束,其主瓣方向分别为40度,0度和-40度,覆盖水平面120度区域,如图4(a)中所示的波束0-0、波束0-1及波束0-2,这三个波束都是宽波束级的波束,级别ID为0,波束ID分别为0、1、2。窄波束级和超窄波束级的波束用于发送参考信号,专用控制信道的信号以及用户数据。在本实施例中,每个宽波束对应3个窄波束,一共9个窄波束,级别ID为1,波束ID为0~8,如图4(b)中所示的波束1-0~波束1-8;
每个窄波束对应3个超窄波束,一共27个超窄波束,级别ID为2,波束ID为0~26如图4(c)中所示的波束2-k、波束2-k+1和波束2-k+2就是27个超窄波束中的3个,其中k为整数,0≤k≤24。根据覆盖特性,波束之间的关系如实施示例一中的表1所示。Due to the large path loss in the high frequency band, in order to ensure coverage, beamforming is used to form a directional beam to increase the antenna gain and improve the signal receiving strength. The narrower the beamwidth (usually measured by the 3dB lobe width), the greater the gain from the antenna. In this embodiment, in order to satisfy the coverage of the synchronization and broadcast signals, the single beam lobe width of the transmission synchronization and broadcast signals is 40 degrees, and three beams of the same lobe width are used, and the main lobe directions are 40 degrees and 0 degrees, respectively. And -40 degrees, covering the 120 degree area of the horizontal plane, as shown in Figure 4 (a), beam 0-0, beam 0-1 and beam 0-2, these three beams are beams of wide beam level, level ID 0, the beam ID is 0, 1, 2, respectively. Beams of narrow beam level and ultra-narrow beam level are used to transmit reference signals, dedicated control channel signals, and user data. In this embodiment, each wide beam corresponds to three narrow beams, a total of nine narrow beams, a level ID of 1, and a beam ID of 0-8, as shown in FIG. 4(b). 1-8;
Each narrow beam corresponds to 3 ultra-narrow beams, a total of 27 ultra-narrow beams, level ID 2, beam ID 0 to 26, as shown in Figure 4 (c), beam 2-k, beam 2-k+1 And beam 2-k+2 is three of the 27 ultra-narrow beams, where k is an integer and 0 ≤ k ≤ 24. According to the coverage characteristics, the relationship between the beams is as shown in Table 1 in the first embodiment.
本实施示例中数据通信的流程图参考图13,包括步骤601~610。The flowchart of data communication in this embodiment example refers to FIG. 13 and includes steps 601-610.
601、TP使用宽波束级的波束发送同步信号给MS。601. The TP uses a beam of a wide beam level to transmit a synchronization signal to the MS.
602、TP使用宽波束级的波束发送广播信号给MS。602. The TP sends a broadcast signal to the MS by using a beam of a wide beam level.
上述两个步骤中,TP在发送同步信号和广播信号时,采用宽波束级别波束赋形,在不同的时间段分别发送如图4(a)所示的3个不同方向的宽波束,如图6所示。广播信息中包含但不限于以下信息:***消息;三个级别波束之间在覆盖范围上的对应关系信息等,该对应关系信息中,每个波束可以分别用级别ID+波束ID唯一标识;同步信号和广播信号所在的时域信息以及对应的宽波束级的波束的ID信息;参考信号所在的时域信息以及对应的级别内的波束的ID信息。In the above two steps, when transmitting the synchronization signal and the broadcast signal, the TP adopts wide beam level beamforming, and respectively transmits three wide beams in different directions as shown in FIG. 4(a) in different time periods, as shown in the figure. 6 is shown. The broadcast information includes, but is not limited to, the following information: system message; correspondence information of coverage between three levels of beams, etc., in the correspondence information, each beam can be uniquely identified by level ID + beam ID; The time domain information of the broadcast signal and the ID information of the beam of the corresponding wide beam level; the time domain information of the reference signal and the ID information of the beam within the corresponding level.
在时间域上,广播信号位于同步信号之后,且周期性发送,如图7所示。In the time domain, the broadcast signal is located after the synchronization signal and is transmitted periodically, as shown in FIG.
603、MS取得同步,并确定宽波束级中最优波束的ID信息。603. The MS obtains synchronization and determines ID information of the optimal beam in the wide beam level.
本步骤中,接收侧MS在时间轴上检测同步信号,三个级别的波束之间在覆盖范围上的对应关系信息和***消息等信息。MS随后检测t2’时刻和t3’时刻的同步信号,比较t1’时刻、t2’时刻和t3’时刻检测到的同步信号的峰值信息,确定宽波束级的最优波束的ID信息。In this step, the receiving side MS detects the synchronization signal on the time axis, the correspondence information on the coverage between the three levels of beams, and the system message and the like. The MS then detects the synchronization signals at the time t2' and the time t3', compares the peak information of the synchronization signal detected at the time t1', the time t2', and the time t3', and determines the ID information of the optimum beam at the wide beam level.
604、MS在该最优波束对应的资源中解调广播信号。604. The MS demodulates the broadcast signal in the resource corresponding to the optimal beam.
本步骤中,在最优波束对应的资源上解调广播信号后,得到当前时刻发送的波束的ID信息,以及同步信号和广播信号其他波束对应的时域信息。In this step, after the broadcast signal is demodulated on the resource corresponding to the optimal beam, the ID information of the beam transmitted at the current time and the time domain information corresponding to the other signals of the synchronization signal and the broadcast signal are obtained.
605、MS反馈宽波束级中最优波束的ID信息给TP。605. The MS feeds back the ID information of the optimal beam in the wide beam level to the TP.
606、TP使用窄波束级的波束发送参考信号给MS。606. The TP sends a reference signal to the MS by using a beam of a narrow beam level.
本步骤中,TP采用窄波束级波束赋形方式发送参考信号,参考信号也是周期性发送,TP覆盖范围内的所有MS都使用相同的参考信号进行信道估
计和窄波束级波束训练,因此TP需要在所有窄波束级别的波束上发送参考信号。在本实施示例中,考虑在时间域上进行波束的遍历。In this step, the TP uses a narrow beam-level beamforming method to transmit the reference signal, and the reference signal is also periodically transmitted. All the MSs in the TP coverage use the same reference signal for channel estimation.
Metering and narrow beam level beam training, so the TP needs to transmit reference signals on all narrow beam level beams. In this embodiment example, it is considered to perform traversal of the beam in the time domain.
607、MS获取CSI(Channel State Information,信道状态信息),并确定窄波束级中最优波束的ID信息。607. The MS acquires CSI (Channel State Information) and determines ID information of the optimal beam in the narrow beam level.
本步骤中,MS首先根据确定宽波束级中最优波束对应的窄波束级的波束,假设宽波束级的最优波束为波束0-1,根据表1,对应的窄波束级的波束为波束1-3,波束1-4和波束1-5。MS在这三个窄波束级的波束对应的时域资源上检测参考信号,比较三个波束上的信号强度,得到窄波束级的最优波束,假设为波束1-3。In this step, the MS first determines the beam of the narrow beam level corresponding to the optimal beam in the wide beam level, and assumes that the optimal beam of the wide beam level is the beam 0-1. According to Table 1, the beam of the corresponding narrow beam level is the beam. 1-3, beam 1-4 and beam 1-5. The MS detects the reference signal on the time domain resources corresponding to the beams of the three narrow beam levels, compares the signal strengths on the three beams, and obtains an optimal beam of a narrow beam level, which is assumed to be a beam 1-3.
608、MS将相应波束上的CSI以及窄波束级的最优波束的ID信息上报给TP。608. The MS reports the CSI on the corresponding beam and the ID information of the optimal beam of the narrow beam level to the TP.
609、TP使用窄波束级的波束发送用户数据给MS。609. The TP sends the user data to the MS by using a beam of a narrow beam level.
对于一些对时延比较敏感的业务或者巨量用户接入的场景,数据传输之前不需要调度等控制信令。本实施示例中,TP根据MS上报的窄波束级的最优波束的ID信息采用相应的窄波束级的波束发送用户数据,按照该最优波束的ID信息对应的赋形方式进行波束赋形并发送。For some services that are sensitive to delay or access by a large number of users, no control signaling such as scheduling is required before data transmission. In this embodiment, the TP transmits the user data according to the ID information of the optimal beam of the narrow beam level reported by the MS, and uses the beam of the corresponding narrow beam level to transmit the user data, and performs beamforming according to the shaping mode corresponding to the ID information of the optimal beam. send.
610、MS解码用户数据。610. The MS decodes the user data.
实施例三、一种采用波束赋形的数据通信装置,设置于发送端,如图14所示,包括:Embodiment 3: A data communication device using beamforming is disposed on the transmitting end, as shown in FIG. 14, and includes:
第一发送模块141,设置为:使用第一波束级的波束发送公共信道的信号;The first sending module 141 is configured to: send a signal of the common channel by using a beam of the first beam level;
第二发送模块142,设置为:使用第二波束级的波束发送参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;The second sending module 142 is configured to: transmit a reference signal by using a beam of the second beam level, where a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;
第三发送模块143,设置为:使用接收端反馈的最优波束发送用户数据。The third sending module 143 is configured to: send user data by using an optimal beam fed back by the receiving end.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。
Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,所述第三发送模块143包括:Optionally, the third sending module 143 includes:
确定单元,设置为:确定覆盖范围与所述接收端所反馈的所述第二波束级的最优波束相对应的第三波束级的波束;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;a determining unit, configured to: determine a beam of a third beam level corresponding to an optimal beam of the second beam level that is fed back by the receiving end; wherein a coverage of the beam of the second beam level a beam larger than the third beam level, where a coverage of each of the second beam levels respectively corresponds to a coverage of one or more of the third beam levels;
专用控制信道发送单元,设置为:使用所确定的一个或多个所述第三波束级的波束发送专用控制信道;a dedicated control channel sending unit, configured to: transmit a dedicated control channel by using the determined one or more beams of the third beam level;
用户数据发送单元,设置为:使用所述接收端所反馈的所述第三波束级的最优波束发送用户数据。The user data sending unit is configured to: send user data by using an optimal beam of the third beam level fed back by the receiving end.
可选地,所述专用控制信道发送单元是设置为:Optionally, the dedicated control channel sending unit is configured to:
在所确定的一个所述第三波束级的波束上发送所述专用控制信道,或在所确定的多个所述第三波束级的波束上遍历发送所述专用控制信道;不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。Transmitting the dedicated control channel on the determined beam of the third beam level, or traversing and transmitting the dedicated control channel on the determined beams of the third beam stage; different beams are used Any of the following or any of the following resources are different: time domain resources, frequency domain resources, and code domain resources.
可选地,所述第三发送模块143是设置为:Optionally, the third sending module 143 is configured to:
使用所述接收端所反馈的所述第二波束级的最优波束发送用户数据。User data is transmitted using an optimal beam of the second beam level fed back by the receiving end.
可选地,所述第一发送模块141是设置为:Optionally, the first sending module 141 is configured to:
在所述第一波束级中的所有波束上遍历发送所述公共信道,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The common channel is traversed on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
可选地,所述第二发送模块142是设置为:Optionally, the second sending module 142 is configured to:
在所述第二波束级中的所有波束上遍历发送所述参考信号,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The reference signal is traversed on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, and code domain resources.
实施例四、一种采用波束赋形的数据通信装置,设置于接收端,如图15所示,包括:
Embodiment 4: A data communication device using beamforming is disposed on the receiving end, as shown in FIG. 15, and includes:
第一接收模块151,设置为:通过第一波束级的波束接收公共信道的信号;The first receiving module 151 is configured to: receive a signal of a common channel by using a beam of the first beam level;
第二接收模块152,设置为:通过第二波束级的波束接收参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;The second receiving module 152 is configured to receive the reference signal by using the beam of the second beam level, where the coverage of the beam of the first beam stage is greater than the beam of the second beam stage;
第一反馈模块153,设置为:反馈所述第二波束级的最优波束。The first feedback module 153 is configured to: feed back an optimal beam of the second beam stage.
可选地,所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。Optionally, the signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is sent later in the time domain than the synchronization signal or the discovery signal.
可选地,所述第一接收模块还设置为:在通过第一波束级的波束接收公共信道的信号后,根据所接收的同步信号或发现信号确定所述第一波束级中的最优波束;在所述第一波束级中的最优波束对应的以下资源中的任一种或任意组合中解调所述广播信号:时域资源,频域资源、码域资源。Optionally, the first receiving module is further configured to: after receiving the signal of the common channel by using the beam of the first beam level, determining an optimal beam in the first beam level according to the received synchronization signal or the discovery signal And demodulating the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
可选地,所述第一接收模块还设置为:在通过第二波束级的波束接收参考信号后,在覆盖范围与所述第一波束级的最优波束对应的所述第二波束级的一个或多个波束中,根据所接收的参考信号确定所述第二波束级的最优波束;其中,所述第一波束级中每个波束的覆盖范围分别对应于所述第二波束级中的一个或多个波束的覆盖范围。Optionally, the first receiving module is further configured to: after receiving the reference signal by using the beam of the second beam level, the second beam level corresponding to the optimal beam of the first beam level after coverage Determining, in the one or more beams, an optimal beam of the second beam level according to the received reference signal; wherein, a coverage of each of the first beam stages respectively corresponds to the second beam level The coverage of one or more beams.
可选地,所述的装置还包括:Optionally, the device further includes:
第三接收模块,设置为:通过覆盖范围与所述第二波束级的最优波束对应的所述第三波束级的一个或多个波束接收专用控制信道的信号;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;a third receiving module, configured to: receive, by using one or more beams of the third beam level corresponding to an optimal beam of the second beam level, a signal of a dedicated control channel; wherein the second beam The coverage of the beam of the level is greater than the beam of the third beam level, and the coverage of each of the second beam stages respectively corresponds to the coverage of one or more of the third beam stages;
第二反馈模块,设置为:在接收所述专用控制信道所使用的第三波束级的波束中,根据所接收的专用控制信道的信号确定所述第三波束级的最优波束并反馈;a second feedback module, configured to: determine, according to the received signal of the dedicated control channel, an optimal beam of the third beam level and feedback in a beam of the third beam level used by the dedicated control channel;
用户数据接收模块,设置为:通过所述第三波束级的最优波束接收用户数据。The user data receiving module is configured to: receive user data by using an optimal beam of the third beam level.
可选地,所述的装置还包括:
Optionally, the device further includes:
用户数据接收模块,设置为:通过所述第二波束级的最优波束接收用户数据。The user data receiving module is configured to: receive user data by using an optimal beam of the second beam level.
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成,所述程序可以存储于计算机可读存储介质中,如只读存储器、磁盘或光盘等。可选地,上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地,上述实施例中的模块/单元可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。本申请不限制于任何特定形式的硬件和软件的结合。One of ordinary skill in the art will appreciate that all or a portion of the steps described above can be accomplished by a program that instructs the associated hardware, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, the modules/units in the foregoing embodiments may be implemented in the form of hardware or in the form of software functional modules. This application is not limited to any specific combination of hardware and software.
虽然本发明所揭露的实施方式如上,但所述的内容仅为便于理解本发明而采用的实施方式,并非用以限定本发明。任何本发明所属领域内的技术人员,在不脱离本发明所揭露的精神和范围的前提下,可以在实施的形式及细节上进行任何的修改与变化,但本发明的专利保护范围,仍须以所附的权利要求书所界定的范围为准。While the embodiments of the present invention have been described above, the described embodiments are merely for the purpose of understanding the invention and are not intended to limit the invention. Any modification and variation in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention. The scope defined by the appended claims shall prevail.
本发明实施例将公共信道的收发和波束训练过程相结合,采用波束赋形发送公共信道的信息,在增强公共信道覆盖的同时,完成部分波束训练过程,以提高发送侧和接收侧之间波束训练的效率,增强波束跟踪的性能,保证高频段下无线通信质量。
In the embodiment of the present invention, the common channel transmission and reception and the beam training process are combined, and the information of the common channel is transmitted by beamforming, and the partial beam training process is completed while enhancing the common channel coverage, so as to improve the beam between the transmitting side and the receiving side. The efficiency of training, enhance the performance of beam tracking, and ensure the quality of wireless communication in high frequency bands.
Claims (15)
- 一种采用波束赋形的数据通信方法,包括:A data communication method using beamforming, comprising:发送端使用第一波束级的波束发送公共信道的信号;The transmitting end transmits the signal of the common channel by using the beam of the first beam level;所述发送端使用第二波束级的波束发送参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;The transmitting end uses the beam of the second beam level to transmit the reference signal, where the coverage of the beam of the first beam stage is greater than the beam of the second beam level;所述发送端使用接收端反馈的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam fed back by the receiving end.
- 如权利要求1所述的方法,其中:The method of claim 1 wherein:所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。The signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is transmitted in the time domain later than the synchronization signal or the discovery signal.
- 如权利要求1所述的方法,其中,所述发送端使用接收端反馈的最优波束发送用户数据包括:The method of claim 1, wherein the transmitting end transmits the user data using the optimal beam fed back by the receiving end comprises:所述发送端确定覆盖范围与所述接收端所反馈的所述第二波束级的最优波束相对应的第三波束级的波束;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;The transmitting end determines a beam of a third beam level that corresponds to an optimal beam of the second beam level that is fed back by the receiving end; wherein a coverage of the beam of the second beam level is greater than a beam of a third beam level, the coverage of each of the second beam stages respectively corresponding to a coverage of one or more of the third beam stages;所述发送端使用所确定的一个或多个所述第三波束级的波束发送专用控制信道;Transmitting, by the transmitting end, a dedicated control channel by using the determined beam of one or more of the third beam stages;所述发送端使用所述接收端所反馈的所述第三波束级的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam of the third beam level fed back by the receiving end.
- 如权利要求3所述的方法,其中,所述发送端使用所确定的一个或多个所述第三波束级的波束发送专用控制信道包括:The method of claim 3, wherein the transmitting, by using the determined beam of the one or more of the third beam stages, the dedicated control channel comprises:所述发送端在所确定的一个所述第三波束级的波束上发送所述专用控制信道,或在所确定的多个所述第三波束级的波束上遍历发送所述专用控制信道;不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。Transmitting, by the transmitting end, the dedicated control channel on the determined beam of the third beam level, or traversing and transmitting the dedicated control channel on the determined beams of the third beam level; different Any one or any of the following resources used by the beam: time domain resources, frequency domain resources, and code domain resources.
- 如权利要求1所述的方法,其中,所述发送端使用接收端反馈的最优波束发送用户数据包括: The method of claim 1, wherein the transmitting end transmits the user data using the optimal beam fed back by the receiving end comprises:所述发送端使用所述接收端所反馈的所述第二波束级的最优波束发送用户数据。The transmitting end sends user data by using an optimal beam of the second beam level fed back by the receiving end.
- 如权利要求1~5任一项所述的方法,其中,所述发送端使用第一波束级的波束发送公共信道的信号包括:The method according to any one of claims 1 to 5, wherein the transmitting end transmitting the signal of the common channel by using the beam of the first beam level comprises:所述发送端在所述第一波束级中的所有波束上遍历发送所述公共信道,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The transmitting end traverses and transmits the common channel on all the beams in the first beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
- 如权利要求1~5任一项所述的方法,其中,所述发送端使用第二波束级的波束发送参考信号包括:The method according to any one of claims 1 to 5, wherein the transmitting end transmitting the reference signal using the beam of the second beam level comprises:所述发送端在所述第二波束级中的所有波束上遍历发送所述参考信号,不同的波束所使用的以下任一种或任几种资源不同:时间域资源、频域资源、码域资源。The transmitting end traverses and transmits the reference signal on all the beams in the second beam level, and any one or any of the following resources used by different beams are different: time domain resources, frequency domain resources, code domains Resources.
- 一种采用波束赋形的数据通信方法,包括:A data communication method using beamforming, comprising:接收端通过第一波束级的波束接收公共信道的信号;The receiving end receives the signal of the common channel through the beam of the first beam stage;所述接收端通过第二波束级的波束接收参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;Receiving, by the receiving end, a reference signal by using a beam of the second beam level; wherein, a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;所述接收端反馈所述第二波束级的最优波束。The receiving end feeds back an optimal beam of the second beam stage.
- 如权利要求8所述的方法,其中:The method of claim 8 wherein:所述公共信道的信号包括同步信号或发现信号,以及广播信号;所述广播信号在时域上迟于所述同步信号或发现信号发送。The signal of the common channel includes a synchronization signal or a discovery signal, and a broadcast signal; the broadcast signal is transmitted in the time domain later than the synchronization signal or the discovery signal.
- 如权利要求9所述的方法,其中,所述接收端通过第一波束级的波束接收公共信道的信号后还包括:The method of claim 9, wherein the receiving end receives the signal of the common channel by using the beam of the first beam level, further comprising:所述接收端根据所接收的同步信号或发现信号确定所述第一波束级中的最优波束;The receiving end determines an optimal beam in the first beam level according to the received synchronization signal or discovery signal;所述接收端在所述第一波束级中的最优波束对应的以下资源中的任一种或任意组合中解调所述广播信号:时域资源,频域资源、码域资源。The receiving end demodulates the broadcast signal in any one or any combination of the following resources corresponding to the optimal beam in the first beam level: a time domain resource, a frequency domain resource, and a code domain resource.
- 如权利要求10所述的方法,其中,所述接收端通过第二波束级的波 束接收参考信号后还包括:The method of claim 10 wherein said receiving end passes a wave of a second beam level After receiving the reference signal, the bundle also includes:所述接收端在覆盖范围与所述第一波束级的最优波束对应的所述第二波束级的一个或多个波束中,根据所接收的参考信号确定所述第二波束级的最优波束;其中,所述第一波束级中每个波束的覆盖范围分别对应于所述第二波束级中的一个或多个波束的覆盖范围。Determining, by the receiving end, an optimality of the second beam level according to the received reference signal in one or more beams of the second beam level corresponding to an optimal beam of the first beam level a beam; wherein a coverage of each of the first beam stages corresponds to a coverage of one or more of the second beam levels, respectively.
- 如权利要求10所述的方法,其中,所述接收端反馈所述第二波束级的最优波束后还包括:The method of claim 10, wherein the receiving end feedbacks the optimal beam of the second beam level further comprises:所述接收端通过覆盖范围与所述第二波束级的最优波束对应的所述第三波束级的一个或多个波束接收专用控制信道的信号;其中,所述第二波束级的波束的覆盖范围大于所述第三波束级的波束,所述第二波束级中每个波束的覆盖范围分别对应于所述第三波束级中的一个或多个波束的覆盖范围;Receiving, by the receiving end, a signal of a dedicated control channel by one or more beams of the third beam level corresponding to an optimal beam of the second beam level; wherein, the beam of the second beam level a coverage that is greater than a beam of the third beam level, and a coverage of each of the second beam levels respectively corresponds to a coverage of one or more of the third beam stages;所述接收端在接收所述专用控制信道所使用的第三波束级的波束中,根据所接收的专用控制信道的信号确定所述第三波束级的最优波束并反馈;The receiving end determines, according to the received signal of the dedicated control channel, an optimal beam of the third beam level and feedbacks the beam in the third beam level used by the receiving the dedicated control channel;所述接收端通过所述第三波束级的最优波束接收用户数据。The receiving end receives user data through an optimal beam of the third beam level.
- 如权利要求10所述的方法,其中,所述接收端反馈所述第二波束级的最优波束后还包括:The method of claim 10, wherein the receiving end feedbacks the optimal beam of the second beam level further comprises:所述接收端通过所述第二波束级的最优波束接收用户数据。The receiving end receives user data through an optimal beam of the second beam level.
- 一种采用波束赋形的数据通信装置,设置于发送端,包括:A data communication device using beamforming, which is disposed at a transmitting end, and includes:第一发送模块,设置为:使用第一波束级的波束发送公共信道的信号;a first sending module, configured to: use a beam of a first beam level to transmit a signal of a common channel;第二发送模块,设置为:使用第二波束级的波束发送参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;a second sending module, configured to: transmit a reference signal by using a beam of the second beam level; wherein, a coverage of the beam of the first beam stage is greater than a beam of the second beam stage;第三发送模块,设置为:使用接收端反馈的最优波束发送用户数据。The third sending module is configured to: send user data by using an optimal beam fed back by the receiving end.
- 一种采用波束赋形的数据通信装置,设置于接收端,包括:A data communication device using a beamforming device is disposed at the receiving end and includes:第一接收模块,设置为:通过第一波束级的波束接收公共信道的信号;The first receiving module is configured to: receive a signal of the common channel by using a beam of the first beam level;第二接收模块,设置为:通过第二波束级的波束接收参考信号;其中,所述第一波束级的波束的覆盖范围大于所述第二波束级的波束;The second receiving module is configured to receive the reference signal by using the beam of the second beam level, where the coverage of the beam of the first beam stage is greater than the beam of the second beam stage;第一反馈模块,设置为:反馈所述第二波束级的最优波束。 The first feedback module is configured to: feed back an optimal beam of the second beam level.
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