WO2013037275A1 - 一种设置权值反馈粒度的方法、设备及系统 - Google Patents

一种设置权值反馈粒度的方法、设备及系统 Download PDF

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Publication number
WO2013037275A1
WO2013037275A1 PCT/CN2012/081038 CN2012081038W WO2013037275A1 WO 2013037275 A1 WO2013037275 A1 WO 2013037275A1 CN 2012081038 W CN2012081038 W CN 2012081038W WO 2013037275 A1 WO2013037275 A1 WO 2013037275A1
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WIPO (PCT)
Prior art keywords
beamforming
weight
feedback granularity
granularity
value
Prior art date
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PCT/CN2012/081038
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English (en)
French (fr)
Inventor
刘孟红
王学寰
罗龙
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21195139.7A priority Critical patent/EP3982551A1/en
Priority to EP20120831043 priority patent/EP2757706A4/en
Publication of WO2013037275A1 publication Critical patent/WO2013037275A1/zh
Priority to US14/209,565 priority patent/US20140192914A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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 using feedback from receiving side
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0617Diversity 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity 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
    • H04B7/0615Diversity 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
    • H04B7/0619Diversity 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 using feedback from receiving side
    • H04B7/0636Feedback format
    • H04B7/0645Variable feedback

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device, and system for setting a weight feedback granularity. Background technique
  • Beamforming technology is a multi-antenna transmission technology that uses small-pitch antenna arrays. It mainly uses the strong correlation of spatial channels and the interference principle of waves. By adjusting the weighting values of array elements of array antennas, the antenna beam is adaptive. The direction in which the prospective user is located, thereby accumulating the transmitted energy in the area where the user is located, thereby increasing the received signal energy on the communication link.
  • the prior art provides a method for setting a weight feedback granularity, and the specific solution is as follows:
  • the beamforming transmitting end sends an NDPA (Null Data Packet) to the beamforming receiving end.
  • NDPA Null Data Packet
  • Announcement an empty packet notification frame), informing the beamforming receiver that it is ready to make a probe measurement
  • the beamforming transmitting end After the SIFS (Short Inter-Frame Space), the beamforming transmitting end sends an NDP (Null Data Packet) to the beamforming receiving end for sounding measurement at the beamforming receiving end;
  • the beamforming transmitting end sends a BFRP (Beamforming Report Poll) to the beamforming receiving end, and requests the beamforming receiving end to send sounding measurement information such as beamforming weights;
  • the beamforming receiver sends a VCBF (very high throughput compressed beamforming frame) including the weighting measurement information such as weight and weight granularity to the beamforming transmitting end. Since only the beamforming transmitting end can know the channel state of each beamforming receiving end, if the beamforming transmitting end controls the weight feedback granularity of the beamforming receiving end, When the beamforming transmitter performs multi-user beamforming transmission, multi-user group management and pairing management (including air-splitting allocation, pairing weight, pairing gain estimation, etc.) can be conveniently performed, which not only reduces costs (management cost, detection) Overhead, etc., can also guarantee the performance of multiple users to a certain extent.
  • the weight feedback granularity can determine the size and duration of the feedback frame. In the case that the transmission opportunity time obtained by the beamforming transmitting end is insufficient, the beamforming transmitting end can control the time by adjusting the weight feedback granularity.
  • the weight feedback granularity is fed back to the beamforming receiving end by the VCBF sent by the beamforming receiving end, so the weight feedback granularity is completely controlled by the beamforming receiving end, and the beamforming transmitting end cannot control the beamforming.
  • the weight feedback granularity is fed back to the beamforming receiving end by the VCBF sent by the beamforming receiving end, so the weight feedback granularity is completely controlled by the beamforming receiving end, and the beamforming transmitting end cannot control the beamforming.
  • Embodiments of the present invention provide a method, device, and system for setting weight feedback granularity to solve the problem that the beamforming transmitting end cannot control the weight feedback granularity of beamforming.
  • a method for setting a weight feedback granularity including:
  • the value is sent to the beamforming sender to transmit a very high throughput compressed beamforming frame VCBF, and the very high throughput compressed beamforming frame VCBF contains beamforming weights with granularity of the weighted feedback granularity requirement value.
  • a method for setting a weight feedback granularity including: receiving a beamforming information request frame BRPF sent by a beamforming transmitting end, and sending a very high throughput rate to a beamforming transmitting end Compressing a beamforming frame VCBF, the very high throughput compression beamforming frame VCBF includes a beamforming weight value with a granularity of the weighted feedback granularity requirement value.
  • a method for setting a weight feedback granularity including: Receiving, by the beamforming sender, capability interaction information including a weight feedback granularity demand value;
  • the throughput compression beamforming frame VCBF includes beamforming weights with granularity of the weighted feedback granularity requirement value.
  • a method for setting a weight feedback granularity including:
  • a beamforming receiving device including:
  • a null packet notification frame receiving unit configured to receive a null packet notification frame NDPA that is sent by the beamforming sender and has a weight feedback granularity demand value
  • the first weight feedback sending unit is configured to send the null data packet frame NDP sent by the beamforming transmitting end and send the beamforming weight to the beamforming transmitting end after the beamforming weight value is measured by the weight feedback granularity requirement value.
  • the throughput rate compresses the beamforming frame VCBF, and the very high throughput compression beamforming frame VCBF includes beamforming weights with granularity of the weighted feedback granularity requirement value.
  • a beamforming receiving device including:
  • a beamforming report query frame receiving unit configured to receive a beamforming report query frame BRPF, which is sent by the beamforming transmitting end and has a weight feedback granularity demand value;
  • a beamforming receiving device including:
  • the capability information interaction unit is configured to receive capability interaction information that is sent by the beamforming sender and includes a weight feedback granularity requirement value;
  • a third weight feedback sending unit configured to send the null data packet frame NDP sent by the beamforming transmitting end, and send the beamforming transmitting end to the beamforming transmitting end after the weighting feedback granularity requirement value is used to measure the beamforming weight value
  • the very high throughput compression beamforming frame VCBF contains beamforming weights with granularity of the weighted feedback granularity requirement value.
  • a beamforming transmitter device including:
  • a weight feedback granularity demand value sending unit configured to send a weight feedback granularity demand value to the beamforming receiving end
  • a weight receiving unit configured to receive a beamforming weight returned by the beamforming receiver.
  • a system for setting a weight feedback granularity including:
  • a beamforming sender device configured to send a weight feedback granularity demand value to the beamforming receiver via the null packet notification frame NDPA;
  • Transmitting the interrogation frame via beamforming BRPF sends a weight feedback granularity demand value to the beamforming receiver;
  • a beamforming receiving end device configured to receive the weight feedback granularity demand value sent by the beamforming transmitting end, compress the beamforming frame VCBF through a very high throughput rate, and return a beamforming with a granularity of the weighted feedback granularity requirement value Weight
  • the beamforming sender device is further configured to receive a beamforming weight value returned by the beamforming receiver device.
  • An embodiment of the present invention provides a method, a device, and a system for setting a weight feedback granularity, where a beamforming receiving end receives a null packet notification frame NDPA that is sent by a beamforming transmitting end and includes a weight feedback granularity demand value, and is in a receiving beam.
  • the rate-compressed beamforming frame VCBF includes beamforming weights with granularity of the weighted feedback granularity requirement value, so that the beamforming sender can control the weight of the feedback to achieve better management of the user.
  • FIG. 1 is a schematic flow chart of a method for setting weight feedback granularity according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of another method for setting weight feedback granularity according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of another method for setting weight feedback granularity according to Embodiment 1 of the present invention
  • FIG. FIG. 5 is a partial schematic diagram of a method for setting a weight feedback granularity according to Embodiment 2 of the present invention
  • FIG. 5 is a partial schematic diagram of a method for setting a weight feedback granularity according to Embodiment 2 of the present invention
  • FIG. 7 is a partial schematic diagram of another method for setting weight feedback granularity according to Embodiment 4 of the present invention.
  • FIG. 8 is a block diagram of a beamforming receiving end device according to Embodiment 5 of the present invention
  • FIG. 9 is a block diagram of another beamforming receiving end device according to Embodiment 5 of the present invention
  • FIG. 11 is a block diagram of a beamforming transmitting end device according to Embodiment 5 of the present invention
  • FIG. 12 is a block diagram of still another beamforming transmitting end device according to Embodiment 5 of the present invention
  • FIG. 13 is a schematic diagram of a system for setting a weight feedback granularity according to Embodiment 5 of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention. Rather than all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • Embodiment 1 The embodiment of the present invention provides a method for setting a weight feedback granularity. As shown in FIG. 1 , the specific steps include:
  • the beamforming receiver receives the null packet notification frame NDPA sent by the beamforming sender and includes the weight feedback granularity requirement value.
  • NDPA is used to inform the beamforming receiver to prepare for the probe measurement.
  • the beamforming receiving end After receiving, by the beamforming receiving end, the null packet frame NDP sent by the beamforming transmitting end, and using the weight feedback granularity requirement value as the granularity to measure the beamforming weight, the beamforming receiving end sends the beamforming transmitting end a very high throughput. Rate compression beamforming frame VCBF.
  • the very high throughput compression beamforming frame VCBF contains beamforming weights with the weighted feedback granularity requirement value.
  • An embodiment of the present invention provides a method for setting a weight feedback granularity, where a beamforming receiving end receives a null packet notification frame NDPA that is sent by a beamforming transmitting end and includes a weight feedback granularity demand value, and sends the packet to the receiving beamforming transmitting end.
  • the null data packet frame NDP and the beamforming weight value is measured by the weight feedback granularity requirement value, and the very high throughput compression beamforming frame VCBF is transmitted to the beamforming transmitting end, the very high throughput compression beamforming frame VCBF
  • the beamforming weight is determined by the granularity of the weighted value of the feedback value, so that the beamforming sender can control the weight of the feedback to better manage the user.
  • Another embodiment of the present invention provides a method for setting a weight feedback granularity. As shown in FIG. 2, the method includes the following steps:
  • the beamforming receiving end receives a beamforming report query frame BRPF that is sent by the beamforming transmitting end and includes a weight feedback granularity demand value.
  • the beamforming receiving end sends a very high throughput compressed beamforming frame VCBF to the beamforming transmitting end, where the very high throughput compressed beamforming frame VCBF includes a beamforming weight value with a granularity of the weighted feedback granularity requirement value.
  • the BRPF is used to request the beamforming receiver to feed back a very high throughput compressed beamforming frame VCBF.
  • An embodiment of the present invention provides a method for setting a weight feedback granularity, where a beamforming report request frame BRPF with a weight feedback granularity demand value sent by a beamforming transmitting end is received by a beamforming receiving end, and is received at a beamforming receiving end.
  • a very high throughput compressed beamforming frame VCBF is transmitted to the beamforming transmitting end, and the very high throughput compressed beamforming frame VCBF includes a beamforming weight with a granularity of the weighted feedback granularity requirement value, so that The beamforming sender controls the weight of the feedback granularity to better manage the user.
  • the embodiment of the present invention further provides a method for setting a weight feedback granularity, as shown in FIG. 3, including the following steps:
  • the beamforming receiving end receives the capability interaction information that is sent by the beamforming sending end and includes the weight feedback granularity requirement value.
  • the VCIF with very high throughput capability information contained in the capability interaction information is carried in the capability interaction between the beamforming receiver and the sender.
  • the capability interaction process includes an association process, a re-association process, a start process, a probe process, or a beacon frame transmission process.
  • the very high throughput compression beamforming frame VCBF contains beamforming weights with granularity of the weighted feedback granularity requirement value.
  • An embodiment of the present invention provides a method for setting a weight feedback granularity, where a beamforming receiving end receives capability interaction information that is sent by a beamforming transmitting end and includes a weighted feedback granularity demand value, and is sent by a beamforming receiving end to a beamforming transmitting end.
  • the null data packet frame NDP and the beamforming weight value is measured by the weight feedback granularity requirement value, and the very high throughput compression beamforming frame VCBF is transmitted to the beamforming transmitting end, the very high throughput compression beamforming frame VCBF
  • the beamforming weight is determined by the granularity of the weighted value of the feedback value, so that the beamforming sender can control the weight of the feedback to better manage the user.
  • an embodiment of the present invention provides a method for setting a weight feedback granularity, which is a method for beamforming a transmitting end side. As shown in FIG. 4, the method includes the following steps: S40. Beamforming transmitting end beamforming The receiving end sends a weight feedback granularity demand value;
  • the beamforming transmitting end receives the beamforming weight returned by the beamforming receiving end with the granularity of the weighted feedback granularity requirement value.
  • the beamforming receiving end transmitting the weight feedback granularity requirement value may send the weight feedback granularity demand value to the beamforming receiving end via the null packet notification frame NDPA; or send the right to the beamforming receiving end via the beamforming report query frame BRPF Value feedback granularity demand value; or
  • the weight feedback granularity demand value is sent to the beamforming receiver via the very high throughput capability information VCIF.
  • An embodiment of the present invention provides a method for setting a weight feedback granularity, where a beamforming transmitting end sends a weight feedback granularity demand value to a beamforming receiving end, and the beamforming transmitting end receives the weight returned by the beamforming receiving end.
  • the feedback granularity requirement value is the beamforming weight of the granularity. In this way, the beamforming sender can control the weight feedback granularity, thereby better managing the user.
  • Embodiment 2 The embodiment of the present invention provides a method for setting a weight feedback granularity. As shown in FIG. 5, a specific embodiment includes the following steps:
  • the beamforming sender sends the NDPA with the weighted value of the feedback value, and the beamforming receiver receives the NDPA with the weighted value of the feedback feedback granularity.
  • the NDPA site information includes at least two site information, and the site information 1 and the site information 2 are described as an example in the embodiment of the present invention, but are not limited thereto.
  • NDPA The format of NDPA is shown in Table 1 below: 1 Ancient ir size (bytes) Annotation frame control 2 Duration 2 RA 6
  • a feedback type of 1 indicates multiple users. If the feedback type is 1, the table
  • Nc index 3 indicates the required feedback dimension; if the feedback type is 0, the representation field is reserved.
  • Table 3 Weight Feedback Granularity The required value can be set in the Reserved Information field in the Probing Sequence field of the NDPA, as shown in Table 4 below: Information size (bit) Comment weight value feedback granularity demand value 2 Reserved field indicates weight feedback granularity demand value serial number 6 Table 4
  • the weight feedback granularity demand value can also be set in the new request weight feedback granularity field in the NDPA, as shown in Table 5.
  • FCS 4 Table 5 The structure of the request weight feedback granularity field is shown in Table 6 below: Information Size (bit) Comment Weight Feedback Granular Demand Value 2 Reserved Field 6 Table 6
  • the new request weight feedback granularity field has a total of 8 bits, and any 2 bits can be used to represent the weight feedback granularity demand value.
  • the new request weight feedback granularity field may be set in the probe sequence field or in the probe sequence field, which is not limited in this embodiment of the present invention.
  • the weight feedback granularity requirement value may also be set in the reservation information field of the site information in the NDPA, wherein if the feedback type of the site information is 0, the association identifier may reserve any lbit in the 12 bits, Nc The 3 bits of the index are all reserved. In this way, there are a total of 4 bits reserved. Any 2 bits of the index are used to indicate the weighted value of the feedback value. If the feedback type of the site information is 1, the associated identifier can reserve any lbit in the 12 bits. The 3 bits of the Nc index are reserved for any lbit, and the 2 bits represent the weight feedback granularity demand value.
  • the weight feedback granularity demand value can also be set in the new request weight feedback granularity field of the NDPA site information.
  • the structure of the site information field set with the request weight feedback granularity field is as shown in Table 7.
  • Table 7 shows the structure of the request weight feedback granularity field as shown in Table 6.
  • the new request weight feedback granularity field has a total of 8 bits, and any 2 bits can be used to represent the weight feedback granularity demand value.
  • the newly added request weight feedback granularity field can be set at the forefront or the last of the site information field, and can be set in the association identifier, the feedback type, and any position in the Nc index in the site information.
  • the weight feedback granularity requirement value field as described above may be set to 2 bits, and the corresponding value interval is ⁇ 0, 1, 2, 3 ⁇ , wherein 3 values respectively correspond to the weight feedback granularity 1, 2, 4
  • the remaining value is reserved or indicates that the beamforming receiving feedback weight granularity is not required, for example: 0 indicates that the feedback weight granularity is 1, 1 indicates that the feedback weight granularity is 2, and 2 indicates that the feedback weight granularity is 4, 3 Reserving or indicating that the beamforming receiver feedback weight granularity is not required.
  • the beamforming transmitter sends the NDP
  • the beamforming receiver receives the NDP and measures the beamforming weight by using the weight feedback granularity requirement value.
  • the beamforming receiving end 1 of the station information 1 in the NDPA sends a VCBF to the beamforming transmitting end, and the VCBF contains a beamforming weight value with a weighted feedback granularity requirement value.
  • Table 8 shows the format of the VHT MIMO control field in the VCBF as shown in Table 9:
  • the beamforming transmitting end sends the BFRP, and the beamforming receiving end corresponding to the requesting station information 2 sends the VCBF to the beamforming transmitting end.
  • the beamforming receiver 2 corresponding to the station information 2 sends a VCBF to the beamforming sender, where the VCBF includes a beamforming weight with a granularity of the weighted feedback granularity requirement value.
  • Embodiments of the present invention provide a method for setting weight feedback granularity by beamforming
  • the receiving end receives the null packet notification frame NDPA sent by the beamforming transmitting end and includes the weight feedback granularity requirement value, and the weight feedback granularity requirement value may be set before or after the sounding sequence in the NDPA field, or the sounding sequence
  • the reserved part of the field may also be set in any part of the site information field or the reserved field in the NDPA field, and the beamforming receiver sends the null packet frame NDP sent by the beamforming transmitting end and uses the weight feedback granularity.
  • the very high throughput compression beamforming frame VCBF is sent to the beamforming transmitting end, and the very high throughput compression beamforming frame VCBF includes the granularity of the weighted feedback granularity requirement value.
  • the beamforming weights in this way, enable the beamforming sender to control the weight feedback granularity to better manage the user.
  • the third embodiment of the present invention provides a method for setting a weight feedback granularity.
  • the method embodiment is applicable to a multi-user scenario. As shown in FIG. 6, the specific embodiment includes the following steps:
  • the beamforming transmitting end sends the NDPA, and the beamforming receiving end receives the NDPA.
  • the beamforming transmitting end sends an NDP
  • the beamforming receiving end receives the NDP and measures the beamforming weight
  • the structure of the NDPA is as shown in Table 1 or as shown in the update structure of the NDPA in which the weight feedback granularity demand value field is added in the second embodiment:
  • the site information 1 corresponds to the beamforming receiving end 1 , and the weight feedback granularity of the beamforming receiving end 1 is directly fed back to the beamforming transmitting end via the VCBF, as shown in step S602.
  • the beamforming receiver 1 sends a VCBF to the beamforming sender. If the NDPA has the right value to feedback the granularity demand value, the beamforming receiver 1 uses the weight feedback granularity requirement value as the granularity feedback beamforming weight; if there is no weight in the NDPA to feedback the granularity demand value, but before this capability In the interaction information, the weighted value is fed back to the granularity demand value, and the beamforming receiver 1 uses the weight feedback granularity requirement value of the capability interaction information as the granularity feedback beamforming weight; if the NDPA and the previous capability interaction information have no right The value feedback granularity demand value, then the beamforming receiver 1 determines the weight feedback granularity or defaults the minimum supported weight feedback granularity feedback beamforming weight.
  • the station information 2 located after the station information 1 corresponds to the beamforming receiving end 2, and the beamforming receiving end 2 receives the BFRP containing the weight feedback granularity demand value sent by the beamforming transmitting end, and then redirects the beam to the beam.
  • the shaping sender sends a VCBF containing a weighted feedback granularity demand value. As shown in step 603,
  • the beamforming transmitting end sends a BFRP that includes a weighted value of the granularity of the feedback
  • the requesting beamforming receiving end 2 sends a VCBF to the beamforming transmitting end, where the VCBF includes a beamforming weight value with a granularity of the weighted feedback granularity requirement value.
  • the NDPA site information includes at least two site information, and the site information 1 and the site information 2 are described as an example in the embodiment of the present invention, but are not limited thereto.
  • the weight feedback granularity demand value can be set in the VCGW new request weight feedback granularity field, as shown in Table 11:
  • the new request weight feedback granularity field can be set before the fragment retransmission bitmap or after the fragment retransmission bitmap.
  • the structure of the request weight feedback granularity field is as shown in Table 6.
  • the new request weight feedback granularity field has a total of 8 bits, and any 2 bits can be used to represent the weight feedback granularity demand value.
  • the weight feedback granularity requirement value field as described above may be set to 2 bits, and the corresponding value interval is ⁇ 0, 1 , 2 , 3 ⁇ , wherein 3 values respectively correspond to the weight feedback granularity 1 , 2, 4, the remaining values are reserved or indicate that the beamforming receiver feedback weight granularity is not required, for example: 0 indicates that the feedback weight granularity is 1, 1 indicates that the feedback weight granularity is 2, and 2 indicates that the feedback weight granularity is 4, 3 reserve or indicate that the beamforming receiver feedback weight granularity is not required.
  • the beamforming receiver 2 corresponding to the station information 2 sends a VCBF to the beamforming sender, where the VCBF includes a beamforming weight with a weighted feedback granularity requirement value.
  • the weight feedback granularity demand value contained in the VCBF finally transmitted by the beamforming receiving end 1 and the beamforming receiving end 2 is determined by the following criteria: If the BFRP has the weight value feedback granularity demand value (weight) The feedback granularity is 1 or 2 or 4), which is based on the weighted feedback granularity demand value contained in the BFRP; if there is no weight in the BFRP to feedback the granularity demand value and the NDPA has the right value feedback granularity demand value (the weight feedback granularity is 1 or 2 or 4), based on the weighted feedback granularity demand value contained in the NDPA; if neither NDPA nor BFRP contains the weight feedback granularity demand value, the beamforming receiver determines the weight feedback granularity or default. The granularity feedback beamforming weight is fed back with the minimum supported weight.
  • the beamforming receiving end 1 takes the weight feedback granularity requirement value included in the NDPA as a standard, and the specific implementation refers to the second embodiment. No further details are made; the beamforming receiver 2 takes the weight feedback granularity requirement contained in the BFRP as the standard.
  • An embodiment of the present invention provides a method for setting a weight feedback granularity, where a beamforming report request frame BRPF with a weight feedback granularity demand value sent by a beamforming transmitting end is received by a beamforming receiving end, and is received at a beamforming receiving end.
  • a very high throughput compressed beamforming frame VCBF is transmitted to the beamforming transmitting end, and the very high throughput compressed beamforming frame VCBF includes a beamforming weight with a granularity of the weighted feedback granularity requirement value, so that The beamforming sender controls the weight of the feedback granularity to better manage the user.
  • Embodiment 4 The embodiment of the present invention provides a method for setting a weight feedback granularity. As shown in FIG. 7, a specific embodiment includes the following steps:
  • the beamforming transmitting end sends the weighted feedback granularity to the beamforming receiving end The ability to exchange value information.
  • the weight feedback granularity requirement value can be set in the VCIF new request weight feedback granularity field in the capability interaction information, as shown in Table 13.
  • the new request weight feedback granularity field can be set anywhere in the VCIF field.
  • the structure of the request weight feedback granularity field is as shown in Table 6.
  • the new request weight feedback granularity field has a total of 8 bits, and any 2 bits can be used to represent the weight feedback granularity demand value.
  • the weight feedback granularity demand value may also be set in the reservation information field in the VCIF, where any 2 bits represent the weight feedback granularity demand value, as shown in Table 14: Information size (bit) Maximum MPDU 2 length
  • the reserved field is arbitrary weight feedback granularity demand value 4 2bit represents the weight feedback granularity demand value table 14
  • the weight feedback granularity demand value field as described above can be set to 2bit, and the corresponding value interval is ⁇ 0 , 1 , 2 , 3 ⁇ , wherein 3 values respectively correspond to the weight feedback granularity 1, 2, 4, and the remaining values are reserved or indicate that the beamforming receiver feedback weight granularity is not required, for example: 0 represents the feedback weight The granularity is 1, 1 indicates that the feedback weight granularity is 2, and 2 indicates that the feedback weight granularity is 4, 3 reserved or indicates that the beamforming receiving end feedback weight granularity is not required.
  • the beamforming transmitting end sends the NDPA, and the beamforming receiving end receives the NDPA. S702. After the interval SIFS, the beamforming transmitting end sends the NDP, and the beamforming receiving end receives the NDP and measures the beamforming weight.
  • the beamforming receiver sends a VCBF to the beamforming sender, where the VCBF includes a beamforming weight with a granularity of the weighted value of the weighted value.
  • the weight feedback granularity demand value included in the VCBF finally sent by the beamforming receiving end may also be determined by the following criteria: If the BFRP has the weight value feedback granularity demand value (the weight feedback granularity is 1 or 2 or 4), based on the weighted demand granularity value of the BFRP; if there is no weight in the BFRP to feedback the granularity demand value and the NDPA has the weighted feedback granularity demand value (the weight feedback granularity is 1 or 2 or 4), The NDPA contains the weight feedback granularity demand value; if neither NDPA nor BFRP contains the weight feedback granularity demand value and the VCIF weight value feedback granularity demand value in the capability interaction information (the weight feedback granular
  • An embodiment of the present invention provides a method for setting a weight feedback granularity, where a beamforming receiving end receives capability interaction information that is sent by a beamforming transmitting end and includes a weighted feedback granularity demand value, and is sent by a beamforming receiving end to a beamforming transmitting end.
  • the null data packet frame NDP and the beamforming weight value is measured by the weight feedback granularity requirement value, and the very high throughput compression beamforming frame VCBF is transmitted to the beamforming transmitting end, the very high throughput compression beamforming frame VCBF
  • the beamforming weight is determined by the granularity of the weighted value of the feedback value, so that the beamforming sender can control the weight of the feedback to better manage the user.
  • Embodiment 5 The embodiment of the present invention provides a beamforming receiving end device 80, as shown in FIG. 8, which includes:
  • the null packet notification frame receiving unit 801 is configured to receive a null packet notification frame NDPA that is sent by the beamforming transmitting end and includes a weight feedback granularity requirement value;
  • the first weight feedback sending unit 802 is configured to send the null data packet frame NDP sent by the beamforming transmitting end and send the beamforming weight to the beamforming transmitting end after the weighted feedback granularity requirement value is used to measure the beamforming weight value.
  • the throughput rate compresses the beamforming frame VCBF, and the very high throughput compression beamforming frame VCBF contains beamforming weights with granularity of the weighted feedback granularity requirement value.
  • the weight feedback granularity requirement value is set in a reservation information field in a sounding sequence field of the NDPA, or is set in a new request weight feedback granularity field in the NDPA, or is set in the NDPA site information.
  • the embodiment of the present invention provides a beamforming receiving end device, which receives an empty data packet frame sent by a beamforming transmitting end by receiving a null data packet notification frame NDPA sent by a beamforming transmitting end and having a weight feedback granularity demand value.
  • the device sends a very high throughput compressed beamforming frame VCBF to the beamforming transmitting end, and the very high throughput compressed beamforming frame VCBF contains
  • the weight feedback granularity demand value is the beamforming right of the granularity Value. In this way, the beamforming sender can control the weight feedback granularity to better manage the user.
  • the embodiment of the present invention provides a beamforming receiving device 90, as shown in FIG. 9, which includes:
  • a beamforming report query frame receiving unit 901 configured to receive a beamforming report query frame BRPF, which is sent by the beamforming transmitting end and has a weight feedback granularity requirement value;
  • the second weight feedback sending unit 902 is configured to send a very high throughput compressed beamforming frame VCBF to the beamforming transmitting end, where the very high throughput compressed beamforming frame VCBF includes the granularity of the weighted feedback granularity requirement value. Beamforming weights. In addition, the weight feedback granularity demand value is set in the BRPF.
  • An embodiment of the present invention provides a beamforming receiving end device, which receives a beamforming report query frame BRPF with a weight feedback granularity demand value sent by a beamforming transmitting end, and sends a very high throughput compression to a beamforming transmitting end.
  • the very high throughput compression beamforming frame VCBF contains beamforming weights with granularity of the weighted feedback granularity requirement value. In this way, the beamforming sender can control the weight of the feedback value to better manage the user.
  • the embodiment of the present invention provides a beamforming receiver device 100, as shown in FIG. 10, including:
  • the capability information interaction unit 1001 is configured to receive, by the beamforming sender, capability interaction information that includes a weighted feedback granularity requirement value;
  • the third weight feedback sending unit 1002 is configured to: after receiving the null packet frame NDP sent by the beamforming transmitting end, and measuring the beamforming weight by using the weight feedback granularity requirement value, transmitting the beamforming transmitter to the beamforming transmitting end
  • the high throughput rate compression beamforming frame VCBF includes the beamforming weights in the granularity of the weighted feedback granularity requirement value.
  • the weight feedback granularity requirement value may be set in a new request weight feedback granularity field in the very high throughput capability information VCIF in the capability interaction information, and may also be set in the reserved information field in the VCIF. in.
  • An embodiment of the present invention provides a beamforming receiving end device, where the device receives the capability interaction information sent by the beamforming transmitting end and includes the weight value of the granularity feedback request value.
  • the device After receiving the null packet frame NDP sent by the transmitting end and measuring the beamforming weight with the weight feedback granularity requirement value, the device sends a very high throughput compressed beamforming frame VCBF to the beamforming transmitting end, which is very
  • the high throughput compression beamforming frame VCBF contains beamforming weights with granularity of the weighted feedback granularity requirement value. In this way, the beamforming sender can control the weight feedback granularity to better manage the user.
  • An embodiment of the present invention provides a beamforming and transmitting device 110. As shown in FIG. 11, the method includes:
  • the weight feedback granularity demand value sending unit 1101 is configured to send a weight feedback granularity demand value to the beamforming receiving end;
  • the weight receiving unit 1102 is configured to receive a beam shaping weight returned by the beamforming receiving end.
  • the weight feedback granularity requirement value sending unit 1101 as shown in FIG. 12, further includes:
  • the first demand value sending module 1201 is configured to send a weight feedback granularity demand value to the beamforming receiving end via the null data packet notification frame NDPA;
  • the second demand value sending module 1202 is configured to send a weight feedback granularity demand value to the beamforming receiving end via the beamforming report query frame BRPF; the third demand value sending module 1203 is configured to send the data through the very high throughput capability information VCIF
  • the beamforming receiver sends a weight feedback granularity demand value.
  • the embodiment of the invention provides a beamforming transmitting end device, which transmits a weight feedback granularity demand value to a beamforming receiving end, and receives a beamforming weight value returned by the beamforming receiving end. In this way, the beamforming sender can control the weight feedback granularity to better manage the user.
  • the beamforming receiving end device may be a base station, and the beamforming transmitting end device may be a user terminal.
  • An embodiment of the present invention further provides a system for setting a weight feedback granularity, as shown in FIG. 13, including:
  • a beamforming transmitting end device 1301, configured to notify a frame NDPA via an empty data packet
  • the beamforming receiver transmits a weight feedback granularity demand value
  • Transmitting the interrogation frame via beamforming BRPF sends a weight feedback granularity demand value to the beamforming receiver;
  • the beamforming receiving end device 1302 configured to receive the weighted feedback granularity demand value sent by the beamforming transmitting end, via a very high throughput
  • the rate-compressed beamforming frame VCBF returns a beamforming weight with a granularity of the weighted feedback granularity requirement value; the beamforming transmitting end is further configured to receive a beamforming weight returned by the beamforming receiving end.
  • An embodiment of the present invention provides a system for setting a weight feedback granularity, where a beamforming transmitting device sends a weight to a beamforming receiver via a null packet notification frame NDPA or a beamforming report interrogation frame BRPF or a very high throughput capability information VCIF.
  • the beamforming sender can control the weight feedback granularity to better manage the user.

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Abstract

本发明实施例提供一种设置权值反馈粒度的方法、设备和系统,涉及通信领域,解决了波束成形发送端无法控制波束成形的权值反馈粒度的问题,该方法包括:接收波束成形发送端发送的含有权值反馈粒度需求值的空数据包通知帧NDPA,接收波束成形发送端发送的空数据包帧NDP并以所述权值反馈粒度需求值为粒度测量波束成形权值,向波束成形发送端发送非常高吞吐率压缩波束成形帧VCBF,所述非常高吞吐率压缩波束成形帧VCBF中含有以所述权值反馈粒度需求值为粒度的波束成形权值。本发明实施例适用于权值反馈粒度的设置。

Description

一种设置权值反馈粒度的方法、 设备及系统 本申请要求于 2011年 9月 14日提交中国专利局、 申请号 201110271836.1 发明名称为 "一种设置权值反馈粒度的方法、设备及系统" 的中国专利申请 的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域, 尤其涉及一种设置权值反馈粒度的方法、 设备及系统。 背景技术
波束成形技术是一种应用小间距天线阵列的多天线传输技术,主 要是利用空间信道的强相关性及波的干涉原理,通过调整阵列天线各 阵元的加权值, 使天线波束自适应的对准用户所在的方向, 从而将发 射能量聚积在用户所在区域, 进而增加通信链路上的接收信号能量。
现有技术提供一种设置权值反馈粒度的方法, 具体的方案如下: 波束成形发送端向波束成形接收端发送 NDPA ( Null Data Packet
Announcement,空数据包通知帧) , 告知波束成形接收端准备进行探 测测量;
间隔 SIFS(Short Inter-Frame Space,短帧间距)后, 波束成形发送 端向波束成形接收端发送 NDP ( Null Data Packet,空数据包帧) , 用 于波束成形接收端进行探测 (sounding ) 测量; 波束成形发送端向波束成形接收端发送 BFRP ( Beamforming Report Poll , 波束成形^艮告询问帧) , 请求波束成形接收端发送波束 成形权值等 sounding测量信息;
波束成形接收端向波束成形发送端发送包含权值、 权值粒度等 sounding 测量信息的 VCBF ( Very high throughput Compressed Beamforming Frame,非常高吞吐率压缩波束成形帧) 。 由于只有波束成形发送端能知道各个波束成形接收端的信道状 态, 因此若由波束成形发送端控制波束成形接收端的权值反馈粒度, 当波束成形发送端进行多用户波束成形传输时,能方便地进行多用户 分组管理、配对管理(包括空分流分配、配对权值、配对增益预估等), 不仅能减少成本(管理成本、 探测开销等) , 也能一定程度保证多用 户的性能。 此外, 权值反馈粒度能决定反馈帧的大小和时长, 在波束 成形发送端获得的传输机会时长不充足的情况下,波束成形发送端可 通过调整权值反馈粒度控制时间。
但是, 现有的方案中, 权值反馈粒度是通过波束成形接收端发送 的 VCBF反馈到波束成形接收端的,因此权值反馈粒度完全由波束成 形接收端控制, 而波束成形发送端无法控制波束成形的权值反馈粒 度。 发明内容
本发明的实施例提供一种设置权值反馈粒度的方法、 设备及系 统, 以解决波束成形发送端无法控制波束成形的权值反馈粒度的问 题。
为达到上述目的, 本发明的实施例釆用如下技术方案:
一方面, 提供一种设置权值反馈粒度的方法, 包括:
接收波束成形发送端发送的含有权值反馈粒度需求值的空数据 包通知帧 NDPA; 接收波束成形发送端发送的空数据包帧 NDP并以所述权值反馈 粒度需求值为粒度测量波束成形权值,向波束成形发送端发送非常高 吞吐率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF中含有以所述权值反馈粒度需求值为粒度的波束成形权值。
一方面, 提供一种设置权值反馈粒度的方法, 包括: 接收波束成形发送端发送的含有权值反馈粒度需求值的波束成 形 ^艮告询问帧 BRPF; 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所 述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度 需求值为粒度的波束成形权值。
一方面, 提供一种设置权值反馈粒度的方法, 包括: 接收波束成形发送端发送的含有权值反馈粒度需求值的能力交 互信息;
接收波束成形发送端发送的空数据包帧 NDP并以所述权值反馈 粒度需求值为粒度测量波束成形权值,向波束成形发送端发送非常高 吞吐率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF中含有以所述权值反馈粒度需求值为粒度的波束成形权值。
一方面, 提供一种设置权值反馈粒度的方法, 包括:
向波束成形接收端发送权值反馈粒度需求值; 接收由波束成形接收端返回的以所述权值反馈粒度需求值为粒 度的波束成形权值。
一方面, 提供一种波束成形接收端设备, 包括:
空数据包通知帧接收单元,用于接收波束成形发送端发送的含有 权值反馈粒度需求值的空数据包通知帧 NDPA;
第一权值反馈发送单元,用于在接收波束成形发送端发送的空数 据包帧 NDP并以所述权值反馈粒度需求值为粒度测量波束成形权值 后, 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所 述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度 需求值为粒度的波束成形权值。
一方面, 提供一种波束成形接收端设备, 包括:
波束成形报告询问帧接收单元,用于接收波束成形发送端发送的 含有权值反馈粒度需求值的波束成形报告询问帧 BRPF;
第二权值反馈发送单元,用于向波束成形发送端发送非常高吞吐 率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度需求值为粒度的波束成形权值。 一方面, 提供一种波束成形接收端设备, 包括:
能力信息交互单元,用于接收波束成形发送端发送的含有权值反 馈粒度需求值的能力交互信息;
第三权值反馈发送单元,用于在接收波束成形发送端发送的空数 据包帧 NDP并以所述权值反馈粒度需求值为粒度测量波束成形权值 后, 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所 述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度 需求值为粒度的波束成形权值。
一方面, 提供一种波束成形发送端设备, 包括:
权值反馈粒度需求值发送单元,用于向波束成形接收端发送权值 反馈粒度需求值;
权值接收单元, 用于接收由波束成形接收端返回的波束成形权 值。
一方面, 提供一种设置权值反馈粒度的系统, 包括:
波束成形发送端设备, 用于经由空数据包通知帧 NDPA 向波束 成形接收端发送权值反馈粒度需求值; 或
经由波束成形报告询问帧 BRPF 向波束成形接收端发送权值反 馈粒度需求值; 或
经由非常高吞吐率能力信息 VCIF , 向波束成形接收端发送权值 反馈粒度需求值;
波束成形接收端设备,用于接收波束成形发送端发送的所述权值 反馈粒度需求值, 经由非常高吞吐率压缩波束成形帧 VCBF , 返回以 所述权值反馈粒度需求值为粒度的波束成形权值;
所述波束成形发送端设备还用于接收所述波束成形接收端设备 返回的波束成形权值。 本发明实施例提供一种设置权值反馈粒度的方法、 设备及系统, 通过波束成形接收端接收波束成形发送端发送的含有权值反馈粒度 需求值的空数据包通知帧 NDPA,并且在接收波束成形发送端发送的 空数据包帧 NDP并以所述权值反馈粒度需求值为粒度测量波束成形 权值后, 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF中含有以所述权值 反馈粒度需求值为粒度的波束成形权值, 这样, 能够使波束成形发送 端控制权值反馈粒度, 从而更好地对用户进行管理。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附
图 1 为本发明实施例一提供的设置权值反馈粒度方法的流程示 意图
图 2 为本发明实施例一提供的另一设置权值反馈粒度方法的流 程示意图; 图 3 为本发明实施例一提供的又一设置权值反馈粒度方法的流 程示意图; 图 4 为本发明实施例一提供的又一设置权值反馈粒度方法的流 程示意图; 图 5 为本发明实施例二提供的设置权值反馈粒度方法的局部示 意图; 为本发明实施例三提供的另一设置权值反馈粒度方法的局 部示意图
图 7 为本发明实施例四提供的又一设置权值反馈粒度方法的局 部示意图;
图 8为本发明实施例五提供的波束成形接收端设备的框图; 图 9为本发明实施例五提供的另一波束成形接收端设备的框图; 图 10 为本发明实施例五提供的又一波束成形接收端设备的框 图; 图 11为本发明实施例五提供的波束成形发送端设备的框图; 图 12 为本发明实施例五提供的又一波束成形发送端设备的框 图;
图 13 为本发明实施例五提供的设置权值反馈粒度系统的示意 图。 具体实施方式 下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进 行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的 范围。
实施例一 本发明实施例提供一种设置权值反馈粒度的方法, 如图 1所示, 其具体步骤包括:
510、 波束成形接收端接收波束成形发送端发送的含有权值反馈 粒度需求值的空数据包通知帧 NDPA。
其中, NDPA用于告知波束成形接收端准备进行探测测量。
511、 在波束成形接收端接收波束成形发送端发送的空数据包帧 NDP 并以该权值反馈粒度需求值为粒度测量波束成形权值后, 波束 成形接收端向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF。
该非常高吞吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒 度需求值为粒度的波束成形权值。 本发明实施例提供一种设置权值反馈粒度的方法,通过波束成形 接收端接收波束成形发送端发送的含有权值反馈粒度需求值的空数 据包通知帧 NDPA, 并且在接收波束成形发送端发送的空数据包帧 NDP 并以该权值反馈粒度需求值为粒度测量波束成形权值后, 向波 束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常高吞 吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒度需求值为粒度 的波束成形权值, 这样, 能够使波束成形发送端控制权值反馈粒度, 从而更好地对用户进行管理。 本发明实施例还提供另一种设置权值反馈粒度的方法, 如图 2 所示, 包括以下步骤:
520、 波束成形接收端接收波束成形发送端发送的含有权值反馈 粒度需求值的波束成形报告询问帧 BRPF;
521、 波束成形接收端向波束成形发送端发送非常高吞吐率压缩 波束成形帧 VCBF , 该非常高吞吐率压缩波束成形帧 VCBF中含有以 该权值反馈粒度需求值为粒度的波束成形权值。 其中, BRPF用于向波束成形接收端请求反馈非常高吞吐率压缩 波束成形帧 VCBF。 本发明实施例提供一种设置权值反馈粒度的方法,通过波束成形 接收端接收波束成形发送端发送的含有权值反馈粒度需求值的波束 成形报告询问帧 BRPF , 并且在波束成形接收端接收到 BRPF之后 , 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常 高吞吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒度需求值为 粒度的波束成形权值, 这样, 能够使波束成形发送端控制权值反馈粒 度, 从而更好地对用户进行管理。 此外, 本发明实施例还提供了一种设置权值反馈粒度的方法, 如 图 3所示, 包括以下步骤:
530、 波束成形接收端接收波束成形发送端发送的含有权值反馈 粒度需求值的能力交互信息;
其中, 该能力交互信息中含有的非常高吞吐率能力信息 VCIF承 载在波束成形接收端和发送端之间能力交互过程中。该能力交互过程 包括关联过程、 重关联过程、 开始过程、 探针过程或者信标帧发送过 程等。
531、 在波束成形接收端接收波束成形发送端发送的空数据包帧 NDP 并以该权值反馈粒度需求值为粒度测量波束成形权值后, 向波 束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF。
该非常高吞吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒 度需求值为粒度的波束成形权值。 本发明实施例提供一种设置权值反馈粒度的方法,通过波束成形 接收端接收波束成形发送端发送的含有权值反馈粒度需求值的能力 交互信息,在波束成形接收端接收波束成形发送端发送的空数据包帧 NDP 并以该权值反馈粒度需求值为粒度测量波束成形权值后, 向波 束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常高吞 吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒度需求值为粒度 的波束成形权值, 这样, 能够使波束成形发送端控制权值反馈粒度, 从而更好地对用户进行管理。 另一方面, 本发明实施例提供一种设置权值反馈粒度的方法, 该 方法为波束成形发送端一侧的方法, 如图 4所示, 包括以下步骤: S40、 波束成形发送端向波束成形接收端发送权值反馈粒度需求 值;
S41、 该波束成形发送端接收由波束成形接收端返回的以该权值 反馈粒度需求值为粒度的波束成形权值。
其中,该波束成形接收端发送权值反馈粒度需求值可经由空数据 包通知帧 NDPA向波束成形接收端发送权值反馈粒度需求值; 或 经由波束成形报告询问帧 BRPF 向波束成形接收端发送权值反 馈粒度需求值; 或
经由非常高吞吐率能力信息 VCIF , 向波束成形接收端发送权值 反馈粒度需求值。
本发明实施例提供一种设置权值反馈粒度的方法,通过波束成形 发送端向波束成形接收端发送权值反馈粒度需求值,该波束成形发送 端接收由波束成形接收端返回的以该权值反馈粒度需求值为粒度的 波束成形权值。 这样, 能够使波束成形发送端控制权值反馈粒度, 从 而更好地对用户进行管理。
实施例二 本发明实施例提供一种设置权值反馈粒度的方法, 如图 5所示, 其具体的实施例包括以下步骤:
S500、 波束成形发送端发送含有权值反馈粒度需求值的 NDPA, 同时波束成形接收端接收该含有权值反馈粒度需求值的 NDPA
在多用户场景下, NDPA站点信息包括至少两个站点信息, 本发 明实施例中以站点信息 1、站点信息 2为例进行描述,但并不限于此。
其中, NDPA的格式如下表 1所示: 1古 ir 大小 (字节) 注释 帧控制 2 时长 2 RA 6
TA 6 探测序列 1 站点信息 1 2 站点信息 2 2
FCS 4 表 1
该 NDPA中的探测序列的格式如下表 2所示: 信息 大小 ( bit ) 注释 预留字段 2 序列号 6 表 2
该 NDPA中的站点信息字段的结构如下表 3所示:
A÷自 大小 ( bit ) 注释 关联标识 12 标识站点信息 反馈类型为 0表示单 反馈类型 1 用户;
反馈类型为 1表示多 用户。 若反馈类型为 1时, 表
Nc索引 3 示要求的反馈维数; 若反馈类型为 0时, 表 示字段预留。 表 3 权值反馈粒度需求值可以设置在该 NDPA 的探测序列字段中的 预留信息字段, 如下表 4所示: 信息 大小 ( bit ) 注释 权值反馈粒度需求值 2 预留字段表示权值反 馈粒度需求值 序列号 6 表 4
权值反馈粒度需求值还可以设置在该 NDPA 中新增的请求权值 反馈粒度字段中, 如表 5所示,
A÷自 大小 (字节) 注释 帧控制 2 时长 2
RA 6
ΤΑ 6 探测序列 1 请求权值反馈粒度字 1 新增的请求权值反馈 段 粒度字段 站点信息 1 2 站点信息 2 2
FCS 4 表 5 该请求权值反馈粒度字段的结构如下表 6所示: 信息 大小 ( bit ) 注释 权值反馈粒度需求值 2 预留字段 6 表 6
该新增的请求权值反馈粒度字段共 8bit,其中的任意 2bit可用于 表示权值反馈粒度需求值。 该新增的请求权值反馈粒度字段既可以设置在探测序列字段之 后又可以设置在探测序列字段之前, 本发明实施例对此不做限制。 此外, 权值反馈粒度需求值还可以设置在该 NDPA 中的站点信 息的预留信息字段中, 其中, 若站点信息的反馈类型为 0时, 则关联标识可预留其 12bit中任 何 lbit , Nc索引的 3bit全部预留, 这样, 总共有 4bit预留, 取其中 的任意 2bit表示权值反馈粒度需求值; 若站点信息的反馈类型为 1时, 则关联标识可预留其 12bit中任 何 lbit , Nc索引的 3bit预留其中任何 lbit , 该 2bit表示权值反馈粒 度需求值。
另外, 权值反馈粒度需求值还可以设置在该 NDPA 的站点信息 新增的请求权值反馈粒度字段中。设置有请求权值反馈粒度字段的站 点信息字段的结构如表 7所示。
Figure imgf000013_0001
表 7 该请求权值反馈粒度字段的结构如表 6所示 该新增的请求权值反馈粒度字段共 8bit,其中的任意 2bit可用于 表示权值反馈粒度需求值。 该新增的请求权值反馈粒度字段既可以设置在站点信息字段的 最前面或者最后面, 又可以设置在站点信息中的关联标识、 反馈类型 和 Nc索引中的任何位置。 举例来说, 如上所述的权值反馈粒度需求值字段可设置为 2bit, 对应取值区间为 {0, 1, 2, 3}, 其中 3个值分别对应权值反馈粒度 1、 2、 4, 剩余的值预留或表示不对波束成形接收端反馈权值粒度进行要 求, 比如: 0表示反馈权值粒度为 1, 1表示反馈权值粒度为 2, 2表 示反馈权值粒度为 4, 3预留或表示不对波束成形接收端反馈权值粒 度进行要求。
S501、 间隔 SIFS之后, 波束成形发送端发送 NDP, 波束成形接 收端接收该 NDP并以该权值反馈粒度需求值为粒度测量波束成形权 值。
S502、 NDPA中的站点信息 1对应的波束成形接收端 1向波束成 形发送端发送 VCBF, 该 VCBF含有以权值反馈粒度需求值为粒度的 波束成形权值。
其中, VCBF的格式如表 8所示:
Figure imgf000014_0001
表 8 该 VCBF中的 VHT MIMO控制字段的格式如表 9所示:
÷自 大小 (bit) 注释
Nc index 3 Nr index 3
Channel width 2
Grouping 2
Codebook information 1
Feedback Type 1
Remaining Segments 3
First Segments 1
Reserved 4
Sounding Sequence 6 表 9
VHT MIMO控制字段中的 Grouping表示该权值反馈粒度
S503、 波束成形发送端发送 BFRP , 请求站点信息 2对应的波束 成形接收端 2向波束成形发送端发送 VCBF
其中, BRPF的结构如表 10所示:
Figure imgf000015_0001
表 10
S504、该站点信息 2对应的波束成形接收端 2向波束成形发送端 发送 VCBF , 该 VCBF含有以权值反馈粒度需求值为粒度的波束成形 权值。
本发明实施例提供一种设置权值反馈粒度的方法,通过波束成形 接收端接收波束成形发送端发送的含有权值反馈粒度需求值的空数 据包通知帧 NDPA,该权值反馈粒度需求值可以设置在该 NDPA字段 中的探测序列之前或者之后, 亦或是探测序列字段的预留部分, 还可 以设置在该 NDPA字段中站点信息字段的任何部位或者预留字段中, 波束成形接收端在接收波束成形发送端发送的空数据包帧 NDP并以 该权值反馈粒度需求值为粒度测量波束成形权值后,向波束成形发送 端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常高吞吐率压缩波 束成形帧 VCBF 中含有以该权值反馈粒度需求值为粒度的波束成形 权值, 这样, 能够使波束成形发送端控制权值反馈粒度, 从而更好地 对用户进行管理。
实施例三 本发明实施例提供一种设置权值反馈粒度的方法,该方法实施例 适用于多用户场景, 如图 6所示, 其具体的实施例包括以下步骤:
5600、 波束成形发送端发送 NDPA, 同时波束成形接收端接收该 NDPA。
5601、 间隔 SIFS之后, 波束成形发送端发送 NDP, 波束成形接 收端接收该 NDP并测量波束成形权值。
另外, NDPA的结构如表 1所示或者如实施例二中加入权值反 馈粒度需求值字段的 NDPA的更新结构所示:
在 NDPA站点信息中, 站点信息 1对应波束成形接收端 1 , 该波 束成形接收端 1的权值反馈粒度经由 VCBF直接反馈至波束成形发送 端, 如步骤 S602所示,
5602、 波束成形接收端 1向波束成形发送端发送 VCBF。 如果 NDPA中有权值反馈粒度需求值, 则波束成形接收端 1 以 该权值反馈粒度需求值为粒度反馈波束成形权值; 如果 NDPA 中没 有权值反馈粒度需求值,但在此之前的能力交互信息中有权值反馈粒 度需求值,则波束成形接收端 1 以能力交互信息的权值反馈粒度需求 值为粒度反馈波束成形权值; 如果 NDPA 和在此之前的能力交互信 息中均没有权值反馈粒度需求值,则波束成形接收端 1 自行决定权值 反馈粒度或默认釆用最小支持的权值反馈粒度反馈波束成形权值。 在 NDPA站点信息中, 位于站点信息 1之后的站点信息 2对应 波束成形接收端 2 , 该波束成形接收端 2接收由波束成形发送端发送 的含有权值反馈粒度需求值的 BFRP之后,再向波束成形发送端发送 含有权值反馈粒度需求值的 VCBF。 如步骤 603所示,
S603、 波束成形发送端发送含有权值反馈粒度需求值的 BFRP, 请求波束成形接收端 2向波束成形发送端发送 VCBF , 该 VCBF含有 以所述权值反馈粒度需求值为粒度的波束成形权值。 在多用户场景下, NDPA站点信息包括至少两个站点信息, 本发 明实施例中以站点信息 1、站点信息 2为例进行描述,但并不限于此。
权值反馈粒度需求值可以设置在该 VCBF 新增的请求权值反馈 粒度字段中, 如表 11所示:
Figure imgf000017_0001
表 11 该新增的请求权值反馈粒度字段可以设置在分片重传位图之前, 也可以设置在分片重传位图之后。 该请求权值反馈粒度字段的结构如表 6所示。
该新增的请求权值反馈粒度字段共 8bit,其中的任意 2bit可用于 表示权值反馈粒度需求值。 举例来说, 如上所述的权值反馈粒度需求值字段可设置为 2bit, 对应取值区间为 {0 , 1 , 2 , 3 } , 其中 3个值分别对应权值反馈粒度 1 、 2、 4 , 剩余的值预留或表示不对波束成形接收端反馈权值粒度进行要 求, 比如: 0表示反馈权值粒度为 1 , 1表示反馈权值粒度为 2 , 2表 示反馈权值粒度为 4 , 3预留或表示不对波束成形接收端反馈权值粒 度进行要求。
S604、该站点信息 2对应的波束成形接收端 2向波束成形发送端 发送 VCBF , 该 VCBF含有以权值反馈粒度需求值为粒度的波束成形 权值。
另外, 步骤 S602和 S604中, 波束成形接收端 1和波束成形接收 端 2 最终发送的 VCBF 中含有的权值反馈粒度需求值以如下准则确 定: 如果 BFRP中有权值反馈粒度需求值(权值反馈粒度为 1或 2或 4 ) , 以 BFRP中含有的权值反馈粒度需求值为准; 如果 BFRP中无 权值反馈粒度需求值而 NDPA 中有权值反馈粒度需求值 (权值反馈 粒度为 1或 2或 4 ) , 以 NDPA中含有的权值反馈粒度需求值为准; 如果 NDPA和 BFRP中都不含有权值反馈粒度需求值,则波束成形接 收端自行决定权值反馈粒度或默认釆用最小支持的权值反馈粒度反 馈波束成形权值。
本实施中,如果 NDPA和 BFRP中均有权值反馈粒度需求值, 则 波束成形接收端 1 以 NDPA中含有的权值反馈粒度需求值为准, 具 体实施方式参考实施例二, 本发明实施例不再赘述; 波束成形接收端 2以 BFRP中含有的权值反馈粒度需求值为准。 本发明实施例提供一种设置权值反馈粒度的方法,通过波束成形 接收端接收波束成形发送端发送的含有权值反馈粒度需求值的波束 成形报告询问帧 BRPF , 并且在波束成形接收端接收到 BRPF之后 , 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常 高吞吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒度需求值为 粒度的波束成形权值, 这样, 能够使波束成形发送端控制权值反馈粒 度, 从而更好地对用户进行管理。
实施例四 本发明实施例提供一种设置权值反馈粒度的方法, 如图 7所示, 其具体的实施例包括以下步骤:
S700、波束成形发送端向波束成形接收端发送含有权值反馈粒度 需求值的能力交互信息。
其中, 该能力交互信息中的 VCIF如表 12所示:
A÷自 大小 ( bit ) 注释
Maximum MPDU 2
length
Supported Channel 2
Width SET
LDPC Coding 1
Capability
Short Gl for 80MHz 1
Short Gl for 160 and 1
80+80MHz
Tx STBC 1
Rx STBC 3
SU Beamformer 1
Capable
SU Beamformee 1
Capable
Compressed Steering 3
Number of
Beamformer Antennas
Supported
Number Of Sounding 3
Dimensions
MU Beamformer 1
Capable
MU Beamformere 1
Capable VHT TXOP PS 1
+HTC-VHT Capable 1
Maximum A-MPDU 3
Length Exponent
VHT Link Adaptation 2
Capable 预留字段 4 表 12 该权值反馈粒度需求值可以设置在该能力交互信息中的 VCIF中 新增的请求权值反馈粒度字段, 如表 13所示。
A÷自 大小 ( bit ) 注释
Maximum MPDU 2
length
Supported Channel 2
Width SET
LDPC Coding 1
Capability
Short Gl for 80MHz 1
Short Gl for 160 and 1
80+80MHz
Tx STBC 1
Rx STBC 3
SU Beamformer 1
Capable
SU Beamformee 1
Capable Compressed Steering 3
Number of
Beamformer Antennas
Supported
Number Of Sounding 3
Dimensions
MU Beamformer 1
Capable
MU Beamformere 1
Capable
VHT TXOP PS 1
+HTC-VHT Capable 1
Maximum A-MPDU 3
Length Exponent
VHT Link Adaptation 2
Capable 预留字段 4 请求权值反馈粒度字 8 新增的请求权值反馈 段 粒度字段
表 13
其中, 新增的请求权值反馈粒度字段可设置在 VCIF字段中的任 何位置。
该请求权值反馈粒度字段的结构如表 6所示。
该新增的请求权值反馈粒度字段共 8bit,其中的任意 2bit可用于 表示权值反馈粒度需求值。 该权值反馈粒度需求值还可以设置在 VCIF 中的预留信息字段 中, 取其中任意 2bit表示权值反馈粒度需求值, 如表 14所示: 信息 大小 ( bit ) 注释 Maximum MPDU 2 length
Supported Channel 2 Width SET
LDPC Coding 1 Capability
Short Gl for 80MHz 1
Short Gl for 160 and 1 80+80MHz
Tx STBC 1
Rx STBC 3
SU Beamformer 1 Capable
SU Beamformee 1 Capable
Compressed Steering 3
Number of
Beamformer Antennas
Supported
Number Of Sounding 3 Dimensions
MU Beamformer 1 Capable
MU Beamformere 1 Capable
VHT TXOP PS 1
+HTC-VHT Capable 1
Maximum A-MPDU 3 Length Exponent
VHT Link Adaptation 2
Capable 其中预留字段任意 权值反馈粒度需求值 4 2bit表示权值反馈粒 度需求值 表 14 举例来说, 如上所述的权值反馈粒度需求值字段可设置为 2bit, 对应取值区间为 {0 , 1 , 2 , 3 } , 其中 3个值分别对应权值反馈粒度 1、 2、 4 , 剩余的值预留或表示不对波束成形接收端反馈权值粒度进行要 求, 比如: 0表示反馈权值粒度为 1 , 1表示反馈权值粒度为 2 , 2表 示反馈权值粒度为 4 , 3预留或表示不对波束成形接收端反馈权值粒 度进行要求。
S701、 波束成形发送端发送 NDPA, 同时波束成形接收端接收该 NDPA。 S702、 间隔 SIFS之后, 波束成形发送端发送 NDP, 波束成形接 收端接收该 NDP并测量波束成形权值。
S703、 波束成形接收端向波束成形发送端发送 VCBF , 该 VCBF 含有以该权值反馈粒度需求值为粒度的波束成形权值。 另外, 步骤 S703中, 波束成形接收端最终发送的 VCBF中含有 的权值反馈粒度需求值还可以以如下准则确定: 如果 BFRP中有权值 反馈粒度需求值 (权值反馈粒度为 1或 2或 4 ) , 以 BFRP含有的权 值反馈粒度需求值为准; 如果 BFRP 中无权值反馈粒度需求值而 NDPA中有权值反馈粒度需求值 (权值反馈粒度为 1或 2或 4 ) , 以 NDPA含有的权值反馈粒度需求值为准;如果 NDPA和 BFRP都不含 有权值反馈粒度需求值而能力交互信息中 VCIF有权值反馈粒度需求 值 (权值反馈粒度为 1或 2或 4 ) , 以 VCIF含有的权值反馈粒度需 求值为准; 如果 NDPA和 BFRP以及 VCIF都不含有权值反馈粒度需 求值,则波束成形接收端自行决定权值反馈粒度或默认釆用最小支持 的权值反馈粒度反馈波束成形权值。 本实施中,如果 NDPA和能力交互信息中 VCIF中均有权值反馈 粒度需求值, 则波束成形接收端以 NDPA含有的权值反馈粒度需求 值为准, 具体实施方式参考实施例二, 本发明实施例不再赘述。 本发明实施例提供一种设置权值反馈粒度的方法,通过波束成形 接收端接收波束成形发送端发送的含有权值反馈粒度需求值的能力 交互信息,在波束成形接收端接收波束成形发送端发送的空数据包帧 NDP 并以该权值反馈粒度需求值为粒度测量波束成形权值后, 向波 束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常高吞 吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒度需求值为粒度 的波束成形权值, 这样, 能够使波束成形发送端控制权值反馈粒度, 从而更好地对用户进行管理。
实施例五 本发明实施例提供一种波束成形接收端设备 80 , 如图 8所示, 包括:
空数据包通知帧接收单元 801 , 用于接收波束成形发送端发送的 含有权值反馈粒度需求值的空数据包通知帧 NDPA;
第一权值反馈发送单元 802 , 用于在接收波束成形发送端发送的 空数据包帧 NDP并以该权值反馈粒度需求值为粒度测量波束成形权 值后, 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常高吞吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒度需 求值为粒度的波束成形权值。 另外, 该权值反馈粒度需求值设置在 NDPA 的探测序列字段中 的预留信息字段, 或者设置在该 NDPA 中新增的请求权值反馈粒度 字段中, 或者设置在所述 NDPA 的站点信息的预留信息字段中, 或 者设置在该站点信息中新增的请求权值反馈粒度字段中。 本发明实施例提供一种波束成形接收端设备,该设备通过接收波 束成形发送端发送的含有权值反馈粒度需求值的空数据包通知帧 NDPA,在接收波束成形发送端发送的空数据包帧 NDP并以该权值反 馈粒度需求值为粒度测量波束成形权值后,该设备向波束成形发送端 发送非常高吞吐率压缩波束成形帧 VCBF , 该非常高吞吐率压缩波束 成形帧 VCBF 中含有以该权值反馈粒度需求值为粒度的波束成形权 值。 这样, 能够使波束成形发送端控制权值反馈粒度, 从而更好地对 用户进行管理。 本发明实施例提供一种波束成形接收端设备 90 , 如图 9所示, 包括:
波束成形报告询问帧接收单元 901 , 用于接收波束成形发送端发 送的含有权值反馈粒度需求值的波束成形报告询问帧 BRPF;
第二权值反馈发送单元 902 , 用于向波束成形发送端发送非常高 吞吐率压缩波束成形帧 VCBF , 该非常高吞吐率压缩波束成形帧 VCBF中含有以该权值反馈粒度需求值为粒度的波束成形权值。 另外, 该权值反馈粒度需求值设置在 BRPF中。 本发明实施例提供一种波束成形接收端设备,该设备通过接收波 束成形发送端发送的含有权值反馈粒度需求值的波束成形报告询问 帧 BRPF , 并向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 该非常高吞吐率压缩波束成形帧 VCBF中含有以该权值反馈 粒度需求值为粒度的波束成形权值。 这样, 能够使波束成形发送端控 制权值反馈粒度, 从而更好地对用户进行管理。
本发明实施例提供一种波束成形接收端设备 100 , 如图 10所示, 包括:
能力信息交互单元 1001 , 接收波束成形发送端发送的含有权值 反馈粒度需求值的能力交互信息;
第三权值反馈发送单元 1002 , 用于在接收波束成形发送端发送 的空数据包帧 NDP并以所述权值反馈粒度需求值为粒度测量波束成 形权值后, 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF中含有以所述权值 反馈粒度需求值为粒度的波束成形权值。
另外,该权值反馈粒度需求值可以设置在该能力交互信息中的非 常高吞吐率能力信息 VCIF中新增的请求权值反馈粒度字段中, 还可 以设置在所述 V C I F中的预留信息字段中。
本发明实施例提供一种波束成形接收端设备,该设备通过接收波 束成形发送端发送的含有权值反馈粒度需求值的能力交互信息,在接 收波束成形发送端发送的空数据包帧 NDP并以该权值反馈粒度需求 值为粒度测量波束成形权值后,该设备向波束成形发送端发送非常高 吞吐率压缩波束成形帧 VCBF , 该非常高吞吐率压缩波束成形帧 VCBF 中含有以该权值反馈粒度需求值为粒度的波束成形权值。 这 样, 能够使波束成形发送端控制权值反馈粒度, 从而更好地对用户进 行管理。
本发明实施例提供一种波束成形发送端设备 110 , 如图 11所示, 包括:
权值反馈粒度需求值发送单元 1101 , 用于向波束成形接收端发 送权值反馈粒度需求值;
权值接收单元 1102 , 用于接收由波束成形接收端返回的波束成 形权值。
进一步地,该权值反馈粒度需求值发送单元 1101 ,如图 12所示, 还包括:
第一需求值发送模块 1201 , 用于经由空数据包通知帧 NDPA向 波束成形接收端发送权值反馈粒度需求值;
第二需求值发送模块 1202 ,用于经由波束成形报告询问帧 BRPF 向波束成形接收端发送权值反馈粒度需求值; 第三需求值发送模块 1203 , 用于经由非常高吞吐率能力信息 VCIF , 向波束成形接收端发送权值反馈粒度需求值。 本发明实施例提供一种波束成形发送端设备,该设备通过向波束 成形接收端发送权值反馈粒度需求值,并且接收由波束成形接收端返 回的波束成形权值。这样 ,能够使波束成形发送端控制权值反馈粒度 , 从而更好地对用户进行管理。 需要说明的是, 在实际的应用中, 该波束成形接收端设备可以是 基站, 该波束成形发送端设备可以是用户终端。 本发明实施例还提供一种设置权值反馈粒度的系统, 如图 13所 示, 包括:
波束成形发送端设备 1301 , 用于经由空数据包通知帧 NDPA向 波束成形接收端发送权值反馈粒度需求值; 或
经由波束成形报告询问帧 BRPF 向波束成形接收端发送权值反 馈粒度需求值; 或
经由非常高吞吐率能力信息 VCIF , 向波束成形接收端发送权值 反馈粒度需求值; 波束成形接收端设备 1302 , 用于接收波束成形发送端发送的该 权值反馈粒度需求值, 经由非常高吞吐率压缩波束成形帧 VCBF , 返 回以该权值反馈粒度需求值为粒度的波束成形权值; 该波束成形发送端还用于接收波束成形接收端返回的波束成形 权值。
本发明实施例提供一种设置权值反馈粒度的系统,波束成形发送 端设备经由空数据包通知帧 NDPA 或者波束成形报告询问帧 BRPF 或者非常高吞吐率能力信息 VCIF向波束成形接收端发送权值反馈粒 度需求值, 以及由波束成形接收端设备返回的波束成形权值。 这样, 能够使波束成形发送端控制权值反馈粒度,从而更好地对用户进行管 理。 以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并 不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范 围内, 可轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护范围应以所述权利要求的保护范围为准。

Claims

权利要求
1、 一种设置权值反馈粒度的方法, 其特征在于, 包括: 接收波束成形发送端发送的含有权值反馈粒度需求值的空数据 包通知帧 NDPA;
接收波束成形发送端发送的空数据包帧 NDP并以所述权值反馈 粒度需求值为粒度测量波束成形权值,向波束成形发送端发送非常高 吞吐率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF中含有以所述权值反馈粒度需求值为粒度的波束成形权值。
2、 根据权利要求 1所述的方法, 其特征在于, 所述权值反馈粒 度需求值设置在所述 NDPA的探测序列字段中的预留信息字段; 或 所述权值反馈粒度需求值设置在所述 NDPA 中新增的请求权值 反馈粒度字段中; 或
所述权值反馈粒度需求值设置在所述 NDPA 的站点信息的预留 信息字段中; 或
所述权值反馈粒度需求值设置在所述站, ^信息中新增的请求权 值反馈粒度字段中。
3、 一种设置权值反馈粒度的方法, 其特征在于, 包括: 接收波束成形发送端发送的含有权值反馈粒度需求值的波束成 形才艮告询问帧 BRPF;
向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所 述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度 需求值为粒度的波束成形权值。
4、 根据权利要求 3所述的方法, 其特征在于, 所述权值反馈粒 度需求值设置在所述 BRPF中。
5、 一种设置权值反馈粒度的方法, 其特征在于, 包括: 接收波束成形发送端发送的含有权值反馈粒度需求值的能力交 互信息;
接收波束成形发送端发送的空数据包帧 NDP并以所述权值反馈 粒度需求值为粒度测量波束成形权值,向波束成形发送端发送非常高 吞吐率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF中含有以所述权值反馈粒度需求值为粒度的波束成形权值。
6、 根据权利要求 5所述的方法, 其特征在于, 所述权值反馈粒 度需求值设置在所述能力交互信息中的非常高吞吐率能力信息 VCIF 中新增的请求权值反馈粒度字段中; 或
所述权值反馈粒度需求值设置在所述 VCIF 中的预留信息字段 中。
7、 一种设置权值反馈粒度的方法, 其特征在于, 包括: 向波束成形接收端发送权值反馈粒度需求值;
接收由波束成形接收端返回的以所述权值反馈粒度需求值为粒 度的波束成形权值。
8、 根据权利要求 7所述的方法, 其特征在于, 所述向波束成形 接收端发送权值反馈粒度需求值, 包括:
经由空数据包通知帧 NDPA 向波束成形接收端发送权值反馈粒 度需求值; 或
经由波束成形报告询问帧 BRPF 向波束成形接收端发送权值反 馈粒度需求值; 或
经由非常高吞吐率能力信息 VCIF , 向波束成形接收端发送权值 反馈粒度需求值。
9、 一种波束成形接收端设备, 其特征在于, 包括:
空数据包通知帧接收单元,用于接收波束成形发送端发送的含有 权值反馈粒度需求值的空数据包通知帧 NDPA;
第一权值反馈发送单元,用于在接收波束成形发送端发送的空数 据包帧 NDP并以所述权值反馈粒度需求值为粒度测量波束成形权值 后, 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所 述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度 需求值为粒度的波束成形权值。
10、 根据权利要求 9所述的波束成形接收端设备, 其特征在于, 所述权值反馈粒度需求值设置在所述 NDPA 的探测序列字段中的预 留信息字段; 或
所述权值反馈粒度需求值设置在所述 NDPA 中新增的请求权值 反馈粒度字段中; 或
所述权值反馈粒度需求值设置在所述 NDPA 的站点信息的预留 信息字段中; 或
所述权值反馈粒度需求值设置在所述站, ^信息中新增的请求权 值反馈粒度字段中。
11、 一种波束成形接收端设备, 其特征在于, 包括: 波束成形报告询问帧接收单元,用于接收波束成形发送端发送的 含有权值反馈粒度需求值的波束成形报告询问帧 BRPF;
第二权值反馈发送单元,用于向波束成形发送端发送非常高吞吐 率压缩波束成形帧 VCBF , 所述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度需求值为粒度的波束成形权值。
12、根据权利要求 11所述的波束成形接收端设备, 其特征在于, 所述权值反馈粒度需求值设置在所述 BRPF中。
13、 一种波束成形接收端设备, 其特征在于, 包括:
能力信息交互单元,用于接收波束成形发送端发送的含有权值反 馈粒度需求值的能力交互信息;
第三权值反馈发送单元,用于在接收波束成形发送端发送的空数 据包帧 NDP并以所述权值反馈粒度需求值为粒度测量波束成形权值 后, 向波束成形发送端发送非常高吞吐率压缩波束成形帧 VCBF , 所 述非常高吞吐率压缩波束成形帧 VCBF 中含有以所述权值反馈粒度 需求值为粒度的波束成形权值。
14、根据权利要求 13所述的波束成形接收端设备, 其特征在于, 所述权值反馈粒度需求值设置在所述能力交互信息中的非常高吞吐 率能力信息 VCIF中新增的请求权值反馈粒度字段中; 或
所述权值反馈粒度需求值设置在所述 VCIF 中的预留信息字段 中。
15、 一种波束成形发送端设备, 其特征在于, 包括:
权值反馈粒度需求值发送单元,用于向波束成形接收端发送权值 反馈粒度需求值;
权值接收单元, 用于接收由波束成形接收端返回的波束成形权 值。
16、根据权利要求 15所述的波束成形发送端设备, 其特征在于, 所述权值反馈粒度需求值发送单元, 还包括:
第一需求值发送模块, 用于经由空数据包通知帧 NDPA 向波束 成形接收端发送权值反馈粒度需求值;
第二需求值发送模块,用于经由波束成形报告询问帧 BRPF向波 束成形接收端发送权值反馈粒度需求值;
第三需求值发送模块, 用于经由非常高吞吐率能力信息 VCIF , 向波束成形接收端发送权值反馈粒度需求值。
17、 一种设置权值反馈粒度的系统, 其特征在于, 包括: 波束成形发送端设备, 用于经由空数据包通知帧 NDPA 向波束 成形接收端发送权值反馈粒度需求值; 或
经由波束成形报告询问帧 BRPF 向波束成形接收端发送权值反 馈粒度需求值; 或
经由非常高吞吐率能力信息 VCIF , 向波束成形接收端发送权值 反馈粒度需求值;
波束成形接收端设备,用于接收波束成形发送端发送的所述权值 反馈粒度需求值, 经由非常高吞吐率压缩波束成形帧 VCBF , 返回以 所述权值反馈粒度需求值为粒度的波束成形权值;
所述波束成形发送端设备还用于接收所述波束成形接收端设备 返回的波束成形权值。
PCT/CN2012/081038 2011-09-14 2012-09-06 一种设置权值反馈粒度的方法、设备及系统 WO2013037275A1 (zh)

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