WO2014161134A1 - Procédé pour déterminer des utilisateurs appariés, équipement utilisateur, station de base et procédé de détection conjoint - Google Patents

Procédé pour déterminer des utilisateurs appariés, équipement utilisateur, station de base et procédé de détection conjoint Download PDF

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Publication number
WO2014161134A1
WO2014161134A1 PCT/CN2013/073564 CN2013073564W WO2014161134A1 WO 2014161134 A1 WO2014161134 A1 WO 2014161134A1 CN 2013073564 W CN2013073564 W CN 2013073564W WO 2014161134 A1 WO2014161134 A1 WO 2014161134A1
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WIPO (PCT)
Prior art keywords
user equipment
indication information
paired
user
subfield
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PCT/CN2013/073564
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English (en)
Chinese (zh)
Inventor
吴海
吴作敏
治欣慰
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380002720.5A priority Critical patent/CN104380640B/zh
Priority to PCT/CN2013/073564 priority patent/WO2014161134A1/fr
Publication of WO2014161134A1 publication Critical patent/WO2014161134A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for determining a paired user, a user equipment, a base station, and a joint detection method. Background technique
  • MU-MIMO Multi-User Multi-Input and Multi-output
  • LTE Long Term Evolution
  • MU-MIMO is that the base station sends multiple data streams on the same time-frequency resource to at least two user equipments.
  • the at least two user equipments are mutually referred to as counterpart users of the other party.
  • the user equipment needs to perform multi-user joint detection, such as Minimum Mean Square Error (MMSE).
  • MMSE Minimum Mean Square Error
  • the user equipment Before the user equipment performs multi-user joint detection, the user equipment needs to determine whether there is a paired user on its own time-frequency resource.
  • the method for determining whether there is a paired user includes: first, the user equipment acquires a time-frequency resource that the base station schedules for itself and an antenna port corresponding to the time-frequency resource; second, the antenna of the preset antenna port-paired user In the corresponding relationship of the port, all antenna ports that may be used by the paired user are queried; then, each of the queried antenna ports is channel-estimated in its own time-frequency resource; finally, the estimated channel characteristics, such as channel coefficients, are obtained.
  • the size and the magnitude of the channel amplitude value determine whether the base station schedules the pairing user within its own time-frequency resource (ie, sends the data stream to the paired user). If the channel coefficient is greater than a certain threshold, it indicates that there is a paired user, and multi-user joint detection is needed to suppress the interference of the paired user; if the channel coefficient or the channel amplitude value is less than a certain threshold, it means that there is no paired user, then There is also no need for multi-user joint detection.
  • the inventors have found that the prior art has at least the following problems: On the one hand, even if there is no pairing user, the user equipment needs to query all the antenna ports that the pairing user may use, and each of the queries The antenna port performs channel estimation, which increases the redundancy operation of the user equipment. On the other hand, since the determining method determines whether the base station can transmit time-frequency resources from the antenna port by using the estimated channel characteristics, there is a possibility of error. For example, determine A non-existing paired user performs joint detection, which will cause the user equipment to perform unnecessary joint detection operations. Summary of the invention
  • the embodiment of the present invention provides a method for determining a paired user, a user equipment, a base station, and a joint detection method.
  • the technical solution is as follows:
  • the embodiment of the present invention provides a method for determining a paired user, where the method includes: the user equipment acquires first indication information from the downlink control information, where the first indication information is used to indicate whether the user exists. Paired user of the device;
  • the user equipment determines, according to the first indication information, whether the paired user exists.
  • the user equipment determines, according to the first indication information, whether the pairing user exists, including:
  • the first indication information When the first indication information is the first value, it indicates that the paired user of the user equipment exists; when the first indication information is the second value, it indicates that the paired user of the user equipment does not exist.
  • the method further includes:
  • the user equipment obtains the second indication information from the downlink control information, and queries, in the correspondence between the second indication information and the number of the paired users, the number of paired users corresponding to the obtained second indication information;
  • the method further includes:
  • the embodiment of the present invention provides a method for determining a pairing user, where the method includes: determining, by a base station, whether a pairing user of the user equipment exists;
  • the base station generates downlink control information according to the determination result, where the downlink control information carries the first finger
  • the first indication information is used to indicate whether there is a paired user of the user equipment; the base station sends the downlink control information to the user equipment, so that the user equipment determines according to the first indication information. Whether there is a pair of users.
  • the method further includes:
  • the base station determines that there is a paired user of the user equipment, the base station acquires a number of paired users of the user equipment;
  • the downlink control information carries the second indication information, where the second indication information is used to indicate the number of paired users of the user equipment.
  • the downlink control information includes a first field, a second field, and a third field, where the second field includes a first subfield, a second subfield, and a third subfield, where the third field includes a fourth a subfield, a fifth subfield, and a sixth subfield, where the first indication information is represented by the fifth subfield, and the second indication information is represented by the first field;
  • the first field is used to indicate an antenna port, a scrambling code identifier, and a layer number
  • the second field is used to indicate first transport block configuration information
  • the third field is used to represent second transport block configuration information
  • the first subfield and the fourth subfield are respectively used to indicate modulation coding of a data stream.
  • the second subfield and the fifth subfield are respectively used to indicate a new data indication
  • the third subfield and the sixth subfield are respectively used to represent a redundancy version.
  • the embodiment of the present invention provides a joint detection method, where the method includes: the user equipment acquires first indication information from the downlink control information, where the first indication information is used to indicate whether the user equipment is present. Paired users
  • the user equipment performs channel estimation on the antenna port of the own antenna and the antenna ports of all the paired users, respectively, to obtain a channel estimation value of the own antenna port and channel estimation values of antenna ports of all the paired users;
  • the user equipment performs a minimum mean square error estimation on a channel estimation value of the own antenna port and a channel estimation value of an antenna port of all the paired users, to obtain an estimate of the data stream belonging to the time-frequency resource.
  • the method further includes:
  • the embodiment of the present invention provides a user equipment, where the user equipment includes: a first acquiring module, configured to acquire first indication information from the downlink control information, where the first indication information is used to indicate whether the a paired user of the user equipment;
  • the first determining module is configured to determine, according to the first indication information, whether the paired user exists.
  • the first determining module is configured to:
  • the first indication information When the first indication information is the first value, it indicates that the paired user of the user equipment exists; when the first indication information is the second value, it indicates that the paired user of the user equipment does not exist.
  • the first determining module is further configured to:
  • the user equipment further includes:
  • a receiving determining module configured to receive downlink control information, and determine whether the first indication information exists in the downlink control information
  • an embodiment of the present invention provides a user equipment, where the user equipment includes a processor, a memory, a user interface, and a network interface, to implement the foregoing method.
  • an embodiment of the present invention provides a base station, where the base station includes:
  • a judging module configured to determine whether a paired user of the user equipment exists;
  • a configuration module configured to generate downlink control information according to the determination result, where the downlink control information carries first indication information, where the first indication information is used to indicate whether a pairing user of the user equipment exists;
  • a sending module configured to send the downlink control information to the user equipment, so that the user equipment determines, according to the first indication information, whether there is a pair of users.
  • the determining module determines that the paired user of the user equipment exists, the determining module is further configured to obtain the number of paired users of the user equipment;
  • the downlink control information generated by the configuration module carries the second indication information, where the second indication information is used to indicate the number of paired users of the user equipment.
  • the downlink control information sent by the sending module method includes a first field, a second field, and a third field, where the second field includes a first subfield, a second subfield, and a third subfield.
  • the third field includes a fourth subfield, a fifth subfield, and a sixth subfield, where the first indication information is represented by the fifth subfield, and the second indication information is represented by the first field;
  • the first field is used to indicate an antenna port, a scrambling code identifier, and a layer number
  • an embodiment of the present invention provides a base station, where the base station includes a processor, a memory, a receiver, and a transmitter, to implement the foregoing method.
  • the embodiment of the present invention provides a user equipment, where the user equipment includes: a second acquiring module, configured to acquire first indication information from the downlink control information, where the first indication information is used to indicate whether the a paired user of the user equipment;
  • a second determining module configured to determine, according to the first indication information, whether the paired user exists
  • a query module configured to acquire an antenna port of the downlink control information when the paired user exists, and In the corresponding relationship between the antenna port and the antenna port of the paired user, querying antenna ports of all the paired users corresponding to the own antenna port;
  • a channel estimation module configured to perform channel estimation on the antenna port of the own antenna and all the antenna ports of the paired user, respectively, to obtain a channel estimation value of the own antenna port and all the pairings Channel estimation value of the user's antenna port;
  • the error estimation module is configured to perform a minimum mean square error estimation on the channel estimation value of the own antenna port and the channel estimation value of all the paired user antenna ports, to obtain an estimate of the data stream belonging to the time-frequency resource.
  • the second determining module is further configured to:
  • the technical solution provided by the embodiment of the present invention has the following advantages: the first indication information is obtained from the downlink control information by the user equipment; the first indication information is used to indicate whether there is a paired user of the user equipment; The first indication information is used to determine whether the paired user exists; the user equipment can determine whether the paired user exists by using the first indication information, which reduces the complexity of the joint detection method and the possibility of error, and improves the detection efficiency of the paired user. .
  • FIG. 1 is a flowchart of a method for determining a paired user according to a first embodiment of the present invention
  • FIG. 2 is a flowchart of a method for determining a paired user according to a second embodiment of the present invention
  • a flowchart of a method for determining a paired user is provided.
  • FIG. 4 is a flowchart of a method for determining a paired user according to Embodiment 4 of the present invention;
  • FIG. 5 is a schematic diagram of a joint detecting method according to Embodiment 5 of the present invention; Flow chart
  • FIG. 6 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention.
  • Embodiment 8 is a schematic structural diagram of a base station according to Embodiment 8 of the present invention.
  • FIG. 9 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention.
  • FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention
  • FIG. 11 is a schematic structural diagram of a user equipment according to Embodiment 11 of the present invention
  • FIG. 12 is a schematic structural diagram of a user equipment according to Embodiment 12 of the present invention.
  • the LTE system defines a variety of transmission modes (Transmission Modes) for downlink data transmission, such as TM5, TM8, TM9 and TM10. As shown in Table 1, a transmission mode includes two types of Downlink Control Information Format (DCI format). The functionality of different DCI formats may vary. For example, the DCI format ID in TM5 is used to support codebook-based multi-user transmission.
  • DCI format Downlink Control Information Format
  • the transmission mode configured by the base station to the user equipment is TM5 and the format of the downlink control information is the DCI format ID
  • the time-frequency resource that the base station schedules to the user equipment must also carry the data stream of other user equipment, that is, the user equipment exists. Pair users.
  • the method for determining the paired user is applicable to all transmission modes supporting MU-MIMO.
  • MIC-MIMO is supported only in DCI format 1D under TM5, DCI format 2B under TM8, DCI format 2C under TM9, and DCI format 2D under TM10, but it does not rule out that LTE system will define other transmission modes supporting MU-MIMO in the future.
  • downlink control information format Embodiment 1
  • An embodiment of the present invention provides a method for determining a pairing user. Referring to FIG. 1, the method process includes:
  • Step 101 The base station determines whether there is a paired user of the user equipment.
  • the paired user of the user equipment is, in the MU-MIMO technology, the time-frequency resources scheduled by the base station and other user equipments that are scheduled by the base station to be the same as the time-frequency resources of the user equipment.
  • Step 102 The base station generates a DCI according to the judgment result, where the DCI carries the first indication information, where the first indication information is used to indicate whether the paired user of the user equipment exists.
  • Step 103 The base station sends the DCI to the user equipment, so that the user equipment determines, according to the first indication information, whether there is a pair of users.
  • the base station determines whether there is a paired user of the user equipment, and generates a DCI according to the determination result, where the DCI carries the first indication information, where the first indication information is used to indicate whether the user exists.
  • a pairing user of the device the base station sends the DCI to the user equipment, so that the user equipment determines whether there is a pair of users according to the first indication information.
  • Embodiment 2
  • the DCI format 2C in the following is used as an example to describe the method for determining the pairing user according to the embodiment of the present invention. Referring to FIG. 2, the method process includes:
  • Step 201 The base station determines whether there is a paired user of the user equipment.
  • the number of paired users of the user equipment is obtained.
  • the paired user of the user equipment is, in the MU-MIMO technology, the time-frequency resources scheduled by the base station and other user equipments scheduled by the base station to be the same as the time-frequency resources of the user equipment.
  • the downlink data transmission process of the existing LTE system includes: the base station first uniformly scheduling the time-frequency resource to the user equipment, where the time-frequency resource is used to send the data stream to the user equipment; secondly, the PDCCH (Physical Downlink Control Channel, physical The downlink control channel sends the DCI (downlink control information) to the user equipment; and then sends the user data to the user equipment through the PDSCH (Physical Downlink Shared Channel).
  • the DCI includes necessary information for parsing the user data carried by the PDSCH (for details of the DCI, see step 202 of the embodiment of the present invention).
  • the base station determines to send the data stream on the same time-frequency resource. Which user devices are given. Then, after the scheduling of the time-frequency resources is completed, the base station can know whether there is a paired user of the user equipment and a number of paired users of the user equipment on the same time-frequency resource that is scheduled to be sent to the user equipment.
  • Step 202 The base station generates a DCI according to the determination result, where the DCI carries the first indication information, where the first indication information is used to indicate whether the paired user of the user equipment exists.
  • the DCI generated by the base station further carries the second indication information, where the second indication information is used to indicate the number of paired users of the user equipment.
  • the first indication information and the second indication information may be set in the DCI, because the DCI sends the DCI to the user equipment after the scheduling of the time-frequency resources is completed, and the DCI includes necessary information for parsing the user data.
  • the DCI comprises a first field, a second field and a third field.
  • the second field includes a first subfield, a second subfield, and a third subfield.
  • the third field includes a fourth subfield, a fifth subfield, and a sixth subfield.
  • the first indication information is represented by a fifth subfield
  • the second indication information is represented by a first field.
  • the first field may be used to indicate an antenna port, a scrambling identity, and a number of layers.
  • the first field usually occupies 3 bits, that is, the value of the first field is 0, 1, 2, 3, 4, 5, 6, or 7 (decimal).
  • the value of the first field is referred to as value in the embodiment of the present invention.
  • the second field may be used to represent the first transport block configuration information (hereinafter collectively referred to as "transport blockl,” and the third field may be used to represent the second transport block configuration information (hereinafter collectively referred to as "transport” Block2").
  • transport blockl first transport block configuration information
  • transport block2 second transport block configuration information
  • Both the second field and the third field occupy 8 bits.
  • the first subfield and the fourth subfield are respectively used to indicate a modulation and coding scheme of the data stream (occupying 5 bits)
  • second The subfield and the fifth subfield are respectively used to represent a new data indicator (occupied 1 bit)
  • the third subfield and the sixth subfield are respectively used to indicate a redundancy version (occupying 2 bits).
  • the user equipment can determine "Antenna port”, “scrambling identity”, and “number of layers” in the pre-established correspondence (as shown in Table 2) through the value and the third field.
  • "Antenna port”, “scrambling identity”, “number of layers”, and transport block configuration information are all used to enable user equipment to resolve user data on the PDSCH.
  • One codeword means that the base station sends one data stream to the user equipment
  • two codeword means that the base station sends two data streams to the user equipment
  • the message refers to the layer number, the antenna port and the scrambling code identifier
  • the layer refers to the layer number.
  • Port refers to the antenna port
  • n SCID refers to the scrambling code identifier.
  • the base station may set the lbit idle bit occupied by the "New data indicator” to 0. If the base station determines that there is a paired user of the user equipment, the lbit idle bit occupied by the "New data indicator” may be set to 1. For details, refer to Table 4 in Embodiment 4 of the present invention. Further, if the number of paired users of the user acquired by the base station is 1, the value may be set to "0, 1, 2, or 3" (according to the message corresponding setting), if the base station acquires the paired user of the user. If the number is greater than 1, you can set the value to "4, 5, 6, or 7" (according to the message corresponding setting). For details, please refer to Table 5 in Embodiment 4 of the present invention.
  • Step 203 The base station sends the DCI to the user equipment, so that the user equipment determines, according to the first indication information, whether there is a pair of users.
  • the user equipment may further determine the number of paired users according to the second indication information. Specifically, the base station sends the DCI to the user equipment through the PDCCH. The user equipment determines whether there is a specific content of its own paired user according to the first indication information. Please refer to Embodiment 3 or 4 of the present invention, and the description is omitted here.
  • the base station determines whether there is a paired user of the user equipment, and generates a DCI according to the determination result, where the DCI carries the first indication information, where the first indication information is used to indicate whether the user exists.
  • a pairing user of the device the base station sends the DCI to the user equipment, so that the user equipment determines whether there is a pair of users according to the first indication information.
  • An embodiment of the present invention provides a method for determining a pairing user. Referring to FIG. 3, the method process includes:
  • Step 301 The user equipment obtains the first indication information from the DCI, where the first indication information is used to indicate whether a paired user of the user equipment exists.
  • the paired user of the user equipment is, in the MU-MIMO technology, the time-frequency resources scheduled by the base station and other user equipments that are scheduled by the base station to be the same as the time-frequency resources of the user equipment.
  • Step 302 The user equipment determines, according to the first indication information, whether there is a paired user.
  • the first indication information is obtained from the DCI by the user equipment; the first indication information is used to indicate whether there is a paired user of the user equipment; and the user equipment determines according to the first indication information. Whether there is a paired user; the user equipment can clearly determine whether there is a paired user through the first indication information, which reduces the complexity of the joint detection method and the possibility of error, and improves the detection efficiency of the paired user.
  • the DCI format 2C in the following is used as an example to describe the method for determining the pairing user according to the embodiment of the present invention. Referring to FIG. 4, the method process includes:
  • Step 401 The user equipment receives the DCI, and determines whether the first indication information exists in the DCI. If yes, go to step 402. If not, exit the process.
  • the first indication information is used to indicate whether a paired user of the user equipment exists.
  • the user equipment acquires the DCI carried by the PDCCH by using PDCCH blind detection.
  • the PDCCH blind detection includes: First, the user equipment acquires all downlink control corresponding to the delivered transmission mode according to the transmission mode pre-delivered by the base station in the correspondence between the transmission mode and the downlink control information format (as shown in Table 1 above) Information format; Then, the user equipment sequentially receives each PDCCH using each downlink control information format until the PDCCH is finally received. This is a well-known technique in the art and will not be described in detail herein.
  • step 202 in Embodiment 2 of the present invention when the "modulation and coding scheme" (fourth subfield) ⁇ "Redundancy version” is configured in the transport block 2 (third field)
  • the lbit (fifth subfield) occupied by the "New data indicator” is one codeword.
  • the first indication information may be set in the fifth subfield.
  • the "Modulation and coding scheme” (fourth subfield) and the “Redundancy version” (the sixth subfield) are not configured with a predetermined value in the transport block2 (third field)
  • the "new data indicator" occupies the lbit.
  • the fifth subfield will no longer be a two codeword, then the base station will not be able to set the first indication in the DCI. Therefore, after receiving the DCI, the user equipment should determine whether the first indication information exists in the DCI. Specifically, the user equipment checks whether the "Modulation and coding scheme" (fourth subfield) and the “Redundancy version” (the sixth subfield) in the transport block 2 (third field) are predetermined values, and if so, determines that the DCI exists in the first An indication message, if not, determining that the first indication information does not exist in the DCI.
  • Step 402 The user equipment obtains the first indication information from the DCI.
  • the user equipment receives the DCI, and parses out
  • the first indication information in the DCI is the first indication information in the DCI.
  • Step 403 The user equipment determines, according to the first indication information, whether there is a paired user.
  • the paired user of the user equipment is, in the MU-MIMO technology, the time-frequency resources scheduled by the base station and other user equipments that are scheduled by the base station to be the same as the time-frequency resources of the user equipment.
  • this step is, in the MU-MIMO technology, the time-frequency resources scheduled by the base station and other user equipments that are scheduled by the base station to be the same as the time-frequency resources of the user equipment.
  • 403 includes:
  • Step 4031 The user equipment determines, according to the obtained first indication information, whether there is a pairing user. If there is a pairing user, step 4032 is performed; if there is no pairing user, the current process is exited.
  • the first indication information when the first indication information is the first value, it indicates that there is a paired user of the user equipment; when the first indication information is the second value, it indicates that there is no paired user of the user equipment.
  • the "one codeword” part of Table 2 is updated in combination with the first indication information, as shown in Table 4.
  • NDI means "New data indicator", that is, the first indication information
  • no paired UE means that there is no pairing user
  • the paired UE exists means that there is a paired user.
  • Step 4032 The user equipment obtains the second indication information from the DCI, and queries the number of the paired users corresponding to the obtained second indication information in the correspondence between the second indication information and the number of the paired users.
  • the correspondence between the second indication information and the number of paired users may be established in advance.
  • the corresponding relationship is shown in Table 5, where "one paired UE” means that there is one paired user, and "more paired UE” means that there are more than two paired users.
  • Step 4033 The user equipment determines whether the number of paired users corresponding to the second indication information is 1, if yes, it indicates that there is one paired user; if not, it indicates that there are more than two paired users.
  • the user equipment After determining that there is a pair of users, the user equipment will perform joint detection. When there is a paired user of one user equipment, the user equipment performs joint detection on one paired user; otherwise, when there are two or more paired users of the user equipment, the user equipment performs joint detection on two or more paired users. It is worth noting that the number of paired users for joint detection by the user equipment depends on the number of antennas of the user equipment. For example, if the user equipment has two antennas, the user equipment can only perform joint detection on only one pair of users: one antenna receives one of its own data streams (one codeword), and the other antenna receives one of the paired users. a data stream (a codeword), ie suppression 1 Interference with a data stream that pairs users. For details of the joint detection, refer to Embodiment 5 of the present invention, and the description is omitted here.
  • the first indication information is obtained from the DCI by the user equipment; the first indication information is used to indicate whether there is a paired user of the user equipment; and the user equipment determines according to the first indication information. Whether there is a paired user; the user equipment can clearly determine whether there is a paired user through the first indication information, which reduces the complexity of the joint detection method and the possibility of error, and improves the detection efficiency of the paired user.
  • the embodiment of the present invention provides a joint detection method.
  • the method includes: Step 501: The user equipment obtains the first indication information from the DCI, where the first indication information is used to indicate whether there is a pair of user equipments. user.
  • Step 502 The user equipment determines, according to the first indication information, whether there is a paired user.
  • the paired user of the user equipment is, in the MU-MIMO technology, the time-frequency resources scheduled by the base station and other user equipments that are scheduled by the base station to be the same as the time-frequency resources of the user equipment.
  • the user equipment determines, according to the obtained first indication information, whether there is a paired user, if the paired user does not exist, exits the current process; if there is a paired user, obtains the second indication information from the DCI, and in the second indication
  • the number of the paired users corresponding to the second indication information obtained by the query is obtained; determining whether the number of the paired users corresponding to the second indication information is 1, and if so, indicating that there is one paired user; No, it means there are more than 2 paired users.
  • Step 503 When there is a paired user, the user equipment obtains its own Antenna port from the DCI, and queries the Antenna port of all the paired users corresponding to the Antenna port in the correspondence between the Antenna port and the Antenna port of the paired user.
  • the user equipment performs joint detection in combination with the number of paired users and the number of antennas configured by itself.
  • Step 504 The user equipment performs channel estimation on its Antenna port and the Antenna port of all the paired users respectively, and obtains the channel estimation value of the Antenna port and the channel estimation value of the Antenna port of all the paired users.
  • Step 505 The user equipment performs a minimum mean square error estimation on the channel estimation value of its own Antenna port and the channel estimation value of the Antenna port of the paired user to obtain an estimate of the data stream belonging to itself on the time-frequency resource.
  • the foregoing method provided by the embodiment of the present invention has the following advantages: the first indication information is obtained from the DCI by the user equipment; the first indication information is used to indicate whether there is a paired user of the user equipment; and the user equipment determines according to the first indication information. Whether there is a paired user; the user equipment can clearly determine whether there is a paired user through the first indication information, which reduces the complexity of the joint detection method and the possibility of error, and improves the detection efficiency of the paired user.
  • the embodiment of the present invention provides a base station, which is applicable to the method provided in Embodiment 1 of the present invention. See Figure 6.
  • the base station includes:
  • the determining module 601 is configured to determine whether there is a paired user of the user equipment.
  • the configuration module 602 is configured to generate a DCI according to the determination result, where the DCI carries the first indication information, where the first indication information is used to indicate whether a paired user of the user equipment exists.
  • the sending module 603 is configured to send the DCI to the user equipment, so that the user equipment determines, according to the first indication information, whether there is a pair of users.
  • the beneficial effect of the foregoing base station is: determining, by the base station, whether there is a paired user of the user equipment, and generating a DCI according to the determination result, where the DCI carries the first indication information, where the first indication information is used to indicate whether the user exists.
  • a pairing user of the device the base station sends the DCI to the user equipment, so that the user equipment determines whether there is a pair of users according to the first indication information.
  • the embodiment of the invention provides a base station, which is applicable to the method provided in the second embodiment of the present invention.
  • the base station includes a judging module 701, a configuration module 702, and a sending module 703.
  • the determining module 701, the configuration module 702, and the sending module 703 are the same as the determining module 601, the configuration module 602, and the sending module 603 provided by the sixth embodiment of the present invention, except that:
  • the determining module 701 determines that there is a paired user of the user equipment, the determining module 701 is further configured to obtain the number of paired users of the user equipment.
  • the DCI generated by the configuration module 702 further carries the second indication information, where the second indication information is used to indicate the number of paired users of the user equipment.
  • the DCI sent by the sending module 703 includes the DCI including a first field, a second field, and a third field.
  • the second field includes a first subfield, a second subfield, and a third subfield.
  • the third field includes a fourth subfield, a fifth subfield, and a sixth subfield.
  • the first indication information is represented by a fifth subfield.
  • the second indication information is represented by a first field.
  • the first field is used to represent the Antenna port, the scrambling identity, and the number of layers; the second field is used to indicate the first transport block, and the third field is used to represent the second transport block configuration information; the first subfield and The fourth subfield is used to represent the Modulation and coding scheme of the data stream, and the second subfield and the fifth subfield are respectively used to represent the New data indicator, and the third subfield and the sixth subfield are respectively used to represent the Redundancy version.
  • the beneficial effect of the foregoing base station is: determining, by the base station, whether there is a paired user of the user equipment, and generating a DCI according to the determination result, where the DCI carries the first indication information, where the first indication information is used to indicate whether the user exists.
  • a pairing user of the device the base station sends the DCI to the user equipment, so that the user equipment determines whether there is a pair of users according to the first indication information.
  • the embodiment of the present invention provides a base station, which is suitable for implementing the method described in Embodiment 1 or 2 of the present invention.
  • the base station can be a type of server.
  • the base station generally includes at least one processor 80 (e.g., a CPU), at least one receiver 81, at least one transmitter 82, and a memory 83.
  • the base station can also include at least one communication bus 84.
  • the communication bus 84 is used to implement connection communication between the processor 80, the memory 83, the receiver 81, and the transmitter 82.
  • At least one receiver 81 (which may be wireless) implements a communication connection between the base station and at least one other computer or server.
  • the memory 83 can be used to store software programs and application modules, and the processor 80 executes various functional applications and data processing of the base station by running software programs stored in the memory 83 and application modules.
  • the memory 83 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (for example, storing the number of paired users of the user equipment), and the like; the storage data area may be stored according to the base station. Use the data created, etc.
  • the memory 83 may include a high speed RAM (random access memory), and may also include a non-volatile memory such as at least one magnetic disk storage device, a flash memory device, or other volatile solid state. Storage device.
  • the processor 80 is a control center of the base station, which connects various parts of the entire base station by using various interfaces and lines, by running or executing software programs and/or application modules stored in the memory 83, and adjusting The data stored in the memory 83 is used to perform various functions and processing data of the base station, thereby performing overall monitoring of the base station.
  • the processor 80 can implement, determine whether there is a paired user of the user equipment; generate according to the judgment result.
  • the DCI the DCI carries the first indication information, where the first indication information is used to indicate whether there is a paired user of the user equipment, and the DCI is sent to the user equipment, so that the user equipment determines whether there is a pair of users according to the first indication information.
  • the processor 80 may be configured to: if the paired user of the user equipment is determined, obtain the number of the paired users of the user equipment; the DCI carries the second indication information, where the second indication information is used to indicate the pairing of the user equipment. amount of users.
  • the DCI sent by the processor 80 includes a first field, a second field, and a third field.
  • the second field includes a first subfield, a second subfield, and a third subfield.
  • the third field includes a fourth subfield, a fifth subfield, and a sixth subfield.
  • the first indication information is represented by a fifth subfield
  • the second indication information is represented by a first field.
  • the first field is used to represent the Antenna port, the scrambling identity, and the number of layers;
  • the second field is used to represent the first transport block configuration information, and the third field is used to represent the second transport block configuration information;
  • the first subfield and the fourth The subfields are respectively used to represent the Modulation and coding scheme of the data stream, and the second subfield and the fifth subfield are respectively used to represent the New data indicator, and the third subfield and the sixth subfield are respectively used to represent the Redundancy version.
  • the beneficial effect of the foregoing base station is: determining, by the base station, whether there is a paired user of the user equipment, and generating a DCI according to the determination result, where the DCI carries the first indication information, where the first indication information is used to indicate whether the user exists.
  • a pairing user of the device the base station sends the DCI to the user equipment, so that the user equipment determines whether there is a pair of users according to the first indication information.
  • An embodiment of the present invention provides a user equipment, which is applicable to the method provided in Embodiment 3 of the present invention.
  • the user equipment includes:
  • the first obtaining module 901 is configured to obtain, from the DCI, first indication information, where the first indication information is used to indicate whether a paired user of the user equipment exists.
  • the first determining module 902 is configured to determine, according to the first indication information, whether a paired user exists.
  • the beneficial effects of the foregoing device provided by the embodiment of the present invention are: obtaining from the DCI by using the user equipment
  • the first indication information is used to indicate whether there is a paired user of the user equipment; the user equipment determines, according to the first indication information, whether there is a paired user; the user equipment can specify whether the paired user exists by using the first indication information,
  • the complexity of the joint detection method and the possibility of error are reduced, which improves the detection efficiency of the paired users. Example ten
  • the embodiment of the invention provides a user equipment, which is applicable to the method provided in Embodiment 4 of the present invention.
  • the user equipment includes a first obtaining module 1001 and a first determining module 1002.
  • the first obtaining module 1001 and the first determining module 1002 are the same as the first obtaining module 901 and the first determining module 902 described in the ninth embodiment of the present invention, except that the first determining module 1002 is specifically used for
  • the first indication information is the first value, it indicates that the paired user of the user equipment exists; when the first indication information is the second value, it indicates that the paired user of the user equipment does not exist.
  • the first determining module 1002 is further configured to: obtain the second indication information from the DCI, and query the number of the paired users corresponding to the obtained second indication information in the correspondence between the second indication information and the number of the paired users; It is determined whether the number of paired users corresponding to the second indication information is 1, and if so, it indicates that there is one paired user; if not, it indicates that there are two or more paired users.
  • the user equipment further includes:
  • the receiving determining module 1003 is configured to receive the DCI, and determine whether the first indication information exists in the DCI; if yes, obtain the first indication information from the DCI.
  • the first indication information is obtained from the DCI by the user equipment; the first indication information is used to indicate whether there is a paired user of the user equipment; and the user equipment determines according to the first indication information. Whether there is a paired user; the user equipment can clearly determine whether there is a paired user through the first indication information, which reduces the complexity of the joint detection method and the possibility of error, and improves the detection efficiency of the paired user.
  • the embodiment of the present invention provides a user equipment, which is used to implement the method described in Embodiment 3 or IV of the present invention.
  • the device can be a computer (including a handheld computer system such as a smart phone, a tablet, etc.) or a server, as shown in FIG. It generally comprises at least one processor 10 (for example a CPU), a user interface 11, at least one network interface 12 or other communication interface and memory 13.
  • the device may also include at least one communication bus 14.
  • the structure of the computer does not constitute a limitation to the computer, it may include more or less components than those illustrated, or some components may be combined, or different component arrangements.
  • the communication bus 14 is used to implement connection communication between the processor 10, the memory 13, and the communication interface.
  • At least one network interface 12 (which may be wired or wireless) implements a communication connection between the user equipment and at least one other computer or server, and may use the Internet, a wide area network, a local area network, a metropolitan area network, or the like.
  • the memory 13 can be used to store software programs and application modules, and the processor 10 executes various functional applications and data processing of the user equipment by running software programs stored in the memory 13 and application modules.
  • the memory 13 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (for example, storing a correspondence relationship between the second indication information and the number of paired users), and the like; The area can store data and the like created according to the use of the user equipment.
  • the memory 13 may include a high speed RAM (random access memory), and may also include a non-volatile memory such as at least one magnetic disk storage device, a flash memory device, or other volatile solid state. Storage device.
  • the input device usually includes a keyboard and a pointing device (for example, a mouse, a trackball, a touch panel or a touch sensitive display).
  • the output device usually includes a device representing computer information such as a display, a printer, and a projector.
  • the display can be used to display information input by the user or a file provided to the user, etc.; the keyboard and click device can be used to receive input numeric or character information, and to generate signal inputs related to user settings and function control of the user device, such as acquiring a user. Operation instructions issued according to the operation prompts, etc.
  • the processor 10 is a control center of the user equipment, connecting various parts of the entire user equipment using various interfaces and lines, by running or executing software programs and/or application modules stored in the memory 13, and calling the memory stored in the memory 13. Data, performing various functions and processing data of the user equipment, thereby performing overall monitoring of the user equipment.
  • the processor 10 can implement the first indication information from the DCI.
  • the first indication information is used to indicate the number of paired users of the user equipment; and according to the first indication information, determining whether there is a paired user.
  • the processor 10 is configured to: when the first indication information is the first value, the paired user of the user equipment is present; when the first indication information is the second value, Indicates that there is no paired user of the user device.
  • the processor 10 may be configured to obtain the second indication information from the DCI, and query the acquired second in the correspondence between the second indication information and the number of the paired users.
  • the number of paired users corresponding to the indication information determining whether the number of paired users corresponding to the second indication information is 1, and if so, indicating that there is one paired user; if not, indicating that there are two or more paired users.
  • the processor 10 is specifically configured to: receive the DCI, and determine whether the first indication information exists in the DCI; if yes, obtain the first indication information.
  • the first indication information is obtained from the DCI by the user equipment; the first indication information is used to indicate whether there is a paired user of the user equipment; and the user equipment determines according to the first indication information. Whether there is a paired user; the user equipment can clearly determine whether there is a paired user through the first indication information, which reduces the complexity of the joint detection method and the possibility of error, and improves the detection efficiency of the paired user.
  • the embodiment of the present invention provides a user equipment, which is applicable to the joint detection method provided in Embodiment 5 of the present invention.
  • the user equipment includes:
  • the second obtaining module 1201 is configured to obtain the first indication information from the DCI, where the first indication information is used to indicate whether a paired user of the user equipment exists.
  • the second determining module 1202 is configured to determine, according to the first indication information, whether there is a paired user.
  • the second determining module 1202 is further configured to: obtain the second indication information from the DCI, and query the number of the paired users corresponding to the obtained second indication information in the correspondence between the second indication information and the number of the paired users; It is determined whether the number of paired users corresponding to the second indication information is 1, and if so, it indicates that there is one paired user; if not, it indicates that there are two or more paired users.
  • the query module 1203 is configured to obtain an Antenna port from the DCI when the paired user exists, and query the Antenna port of all the paired users corresponding to the Antenna port in the correspondence between the Antenna port and the Antenna port of the paired user.
  • the channel estimation module 1204 is configured to perform channel estimation on the Antenna port of each of the paired users and the Antenna port of all the paired users, and obtain the channel estimation value of the Antenna port and the channel estimation value of the Antenna port of all the paired users.
  • An error estimation module 1205 for channel estimation and all pairings of its own Antenna port
  • the channel estimate of the user's Antenna port is subjected to a minimum mean square error estimate to obtain an estimate of the data stream belonging to itself on the time-frequency resource.
  • the first indication information is obtained from the DCI by the user equipment; the first indication information is used to indicate whether there is a paired user of the user equipment; and the user equipment determines according to the first indication information. Whether there is a paired user; the user equipment can clearly determine whether there is a paired user through the first indication information, which reduces the complexity of the joint detection method and the possibility of error, and improves the detection efficiency of the paired user.
  • the user equipment provided by the foregoing embodiment is only illustrated by the division of the foregoing functional modules. In actual applications, the foregoing function allocation may be completed by different functional modules as needed.
  • the internal structure of the device is divided into different functional modules to perform all or part of the functions described above.
  • the user equipment provided by the foregoing embodiment and the method for determining the pairing user are in the same concept.
  • the specific implementation process refer to the method embodiment, and details are not described herein.
  • serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

Conformément à des modes de réalisation, la présente invention concerne un procédé pour déterminer des utilisateurs appariés, un équipement utilisateur, une station de base et un procédé de détection conjoint, qui se rapporte au domaine des communications. Le procédé pour déterminer des utilisateurs appariés comprend les opérations suivantes : (301) un équipement utilisateur obtient des premières informations d'indication à partir d'informations de commande de liaison descendante (DCI), les premières informations d'indication étant utilisées pour indiquer si des utilisateurs appariés existent ou non ; et (302) l'équipement utilisateur détermine, selon les premières informations d'indication, si les utilisateurs appariés existent ou non. Le procédé comprend les opérations suivantes : une station de base détermine si des utilisateurs appariés d'un équipement utilisateur existent ou non ; génère des DCI selon le résultat de détermination, les DCI véhiculant les premières informations d'indication, et envoie les DCI à l'équipement utilisateur, de telle sorte que l'équipement utilisateur détermine si les utilisateurs appariés de la station de base existent ou non. Le procédé consiste à : déterminer, selon des premières informations d'indication, si des utilisateurs appariés existent ou non ; lorsque les utilisateurs appariés existent, obtenir un propre port d'antenne et des ports d'antenne de tous les utilisateurs appariés ; réaliser une estimation de canal sur les ports d'antenne ; estimer une erreur quadratique moyenne minimale de valeurs d'estimation de canal des ports d'antenne. Au moyen de la présente invention, il peut être déterminé facilement et de manière commode si des utilisateurs appariés existent ou non.
PCT/CN2013/073564 2013-04-01 2013-04-01 Procédé pour déterminer des utilisateurs appariés, équipement utilisateur, station de base et procédé de détection conjoint WO2014161134A1 (fr)

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PCT/CN2013/073564 WO2014161134A1 (fr) 2013-04-01 2013-04-01 Procédé pour déterminer des utilisateurs appariés, équipement utilisateur, station de base et procédé de détection conjoint

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104702325A (zh) * 2015-03-21 2015-06-10 西安电子科技大学 基于mse的虚拟mimo用户配对方法
WO2017113995A1 (fr) * 2015-12-31 2017-07-06 华为技术有限公司 Procédé et dispositif de communication sans fil
KR20190039196A (ko) * 2016-08-09 2019-04-10 알까뗄 루슨트 통신 방법, 네트워크 디바이스 및 단말 디바이스
US11569930B2 (en) 2018-01-18 2023-01-31 Huawei Technologies Co., Ltd. Method and apparatus for sending modulation and coding scheme (MCS)
RU2793835C2 (ru) * 2018-01-18 2023-04-07 Хуавэй Текнолоджиз Ко., Лтд. Способ, терминальное устройство, сетевое устройство, чип и устройство связи для отправки индикатора качества канала (cqi) и схемы модуляции и кодирования (msc)
US11705981B2 (en) 2018-01-19 2023-07-18 Huawei Technologies Co., Ltd. Communication method, MCS receiving method, MCS notification method, and device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106160987B (zh) * 2015-04-23 2020-01-31 中兴通讯股份有限公司 控制信息的发送方法及装置
CN107623541B (zh) * 2016-07-13 2021-06-15 华为技术有限公司 一种下行控制信令指示的方法及相关设备
CN108377571B (zh) * 2016-11-09 2021-12-07 上海诺基亚贝尔股份有限公司 用于多用户叠加传输(must)的方法和设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102122984A (zh) * 2010-01-11 2011-07-13 株式会社Ntt都科摩 多用户多输入多输出mu-mimo传输方法、无线通信系统以及基站
CN102300315A (zh) * 2010-06-25 2011-12-28 中兴通讯股份有限公司 一种信息传递方法及系统
CN102447524A (zh) * 2010-10-11 2012-05-09 电信科学技术研究院 信息指示的方法及设备
CN102904842A (zh) * 2011-07-29 2013-01-30 中兴通讯股份有限公司 超级小区上行数据联合处理方法及其系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101877689B (zh) * 2009-04-28 2012-10-17 华为技术有限公司 数据发送处理方法与装置、数据接收处理方法与装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102122984A (zh) * 2010-01-11 2011-07-13 株式会社Ntt都科摩 多用户多输入多输出mu-mimo传输方法、无线通信系统以及基站
CN102300315A (zh) * 2010-06-25 2011-12-28 中兴通讯股份有限公司 一种信息传递方法及系统
CN102447524A (zh) * 2010-10-11 2012-05-09 电信科学技术研究院 信息指示的方法及设备
CN102904842A (zh) * 2011-07-29 2013-01-30 中兴通讯股份有限公司 超级小区上行数据联合处理方法及其系统

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104702325A (zh) * 2015-03-21 2015-06-10 西安电子科技大学 基于mse的虚拟mimo用户配对方法
CN104702325B (zh) * 2015-03-21 2017-11-17 西安电子科技大学 基于mse的虚拟mimo用户配对方法
WO2017113995A1 (fr) * 2015-12-31 2017-07-06 华为技术有限公司 Procédé et dispositif de communication sans fil
CN108476085A (zh) * 2015-12-31 2018-08-31 华为技术有限公司 无线通信方法和设备
US10791522B2 (en) 2015-12-31 2020-09-29 Huawei Technologies Co., Ltd. Wireless communication method and device
CN108476085B (zh) * 2015-12-31 2021-05-14 华为技术有限公司 无线通信方法和设备
KR20190039196A (ko) * 2016-08-09 2019-04-10 알까뗄 루슨트 통신 방법, 네트워크 디바이스 및 단말 디바이스
KR102192031B1 (ko) 2016-08-09 2020-12-17 알까뗄 루슨트 통신 방법, 네트워크 디바이스 및 단말 디바이스
US11569930B2 (en) 2018-01-18 2023-01-31 Huawei Technologies Co., Ltd. Method and apparatus for sending modulation and coding scheme (MCS)
RU2793835C2 (ru) * 2018-01-18 2023-04-07 Хуавэй Текнолоджиз Ко., Лтд. Способ, терминальное устройство, сетевое устройство, чип и устройство связи для отправки индикатора качества канала (cqi) и схемы модуляции и кодирования (msc)
US11705981B2 (en) 2018-01-19 2023-07-18 Huawei Technologies Co., Ltd. Communication method, MCS receiving method, MCS notification method, and device

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