WO2014005282A1 - Procédé de transmission d'informations, équipement utilisateur et dispositif de réseau - Google Patents

Procédé de transmission d'informations, équipement utilisateur et dispositif de réseau Download PDF

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Publication number
WO2014005282A1
WO2014005282A1 PCT/CN2012/078117 CN2012078117W WO2014005282A1 WO 2014005282 A1 WO2014005282 A1 WO 2014005282A1 CN 2012078117 W CN2012078117 W CN 2012078117W WO 2014005282 A1 WO2014005282 A1 WO 2014005282A1
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WIPO (PCT)
Prior art keywords
parameters
information
time information
user equipment
frequency band
Prior art date
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PCT/CN2012/078117
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English (en)
Chinese (zh)
Inventor
周明宇
任晓涛
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.)
Filing date
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 PCT/CN2012/078117 priority Critical patent/WO2014005282A1/fr
Priority to CN201280006637.0A priority patent/CN103718634A/zh
Publication of WO2014005282A1 publication Critical patent/WO2014005282A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a user equipment, and a network device for transmitting information in the field of communications. Background technique
  • the network device sends downlink control signaling to the user equipment (User Equipment, called “UE"), to schedule the UE to send an uplink signal in the uplink resource indicated by the downlink control signaling, and the downlink control
  • the signaling may also be referred to as uplink scheduling information.
  • the UE may send an uplink signal on the indicated uplink resource according to the downlink control signaling, for example, the uplink signal includes a reference signal (Reference Signal
  • the cartridge is referred to as "RS” and data, wherein the RS is used by the network device to estimate the wireless channel, thereby enabling the network device to coherently demodulate the data based on the estimated wireless channel.
  • a network device can schedule multiple UEs for uplink transmission; to facilitate interference management, all UEs controlled by the same network device use the same set of parameters to generate an RS. It should be understood that there are many parameters for generating an RS. Here, only some parameters are required to be the same for all UEs, and all parameters are not limited.
  • the UE may have UE-specific parameters. For example, in a Long Term Evolution-Advanced (LTE-A) system, when one network device corresponds to one cell, all UEs belonging to the same cell use sequences in the same sequence group to generate.
  • LTE-A Long Term Evolution-Advanced
  • RS may generate RSs according to sequences of different lengths in the sequence group, and the length of the sequence is related to uplink resources allocated by the network equipment for the UE).
  • the sequence with a lower correlation of 4 bar is allocated to different sequence groups, so that when different cells use different sequence groups, mutual interference between RSs transmitted by UEs of different cells can be made lower.
  • the UE may determine the parameter corresponding to the cell according to the cell identifier (Identity, the tube is called "ID”), or according to the information that the network device sends in a broadcast manner, because any UE can obtain the cell ID when accessing the cell. Or, the network device can let all the UEs know the parameters corresponding to the cell only by using the broadcast information, and does not need to separately send a message to each UE, thereby saving signaling overhead (Overhead).
  • ID cell identifier
  • the network device can let all the UEs know the parameters corresponding to the cell only by using the broadcast information, and does not need to separately send a message to each
  • CoMP Multiple Point transmission/reception
  • one of the UEs The uplink signal sent by the UE can be received by multiple network devices, thereby enhancing transmission efficiency or transmission reliability of the uplink signal.
  • one UE may acquire multiple sets of parameters for generating an RS, and the RS that the UE transmits at a certain time can only use one set of parameters.
  • the network device needs to send special signaling to the UE to indicate the parameters used by the UE to generate the RS, thus resulting in a large system signaling overhead. Summary of the invention
  • the embodiments of the present invention provide a method for transmitting information, a user equipment, and a network device, which can save system signaling overhead.
  • the embodiment of the present invention provides a method for transmitting information, where the method includes: receiving control signaling sent by a network device, where the control signaling is used to indicate that the user equipment sends the frequency band information of the uplink signal; Determining at least one of reception time information, transmission time information of the uplink signal, and the frequency band information, determining a first group of parameters in at least two sets of parameters for generating a reference signal; generating according to the first group of parameters a first reference signal; according to the control signaling, sending the uplink signal including the first reference signal to the network device.
  • an embodiment of the present invention provides a method for transmitting information, where the method includes: sending control signaling to a user equipment, where the control signaling is used to indicate that the user equipment sends frequency band information of an uplink signal; and receiving the user equipment.
  • the uplink signal including the first reference signal sent according to the control signaling; at least one of the transmission time information for transmitting the control signaling, the reception time information for receiving the uplink signal, and the frequency band information, Determining, by the user equipment, at least two sets of parameters of the reference signal, the first set of parameters; demodulating the first reference signal according to the first set of parameters.
  • the embodiment of the present invention provides a user equipment, where the user equipment includes: a first receiving module, configured to receive control signaling sent by a network device, where the control signaling is used to indicate that the user equipment sends an uplink signal.
  • a first determining module configured to receive at least one of receiving time information of the control signaling, transmitting time information of transmitting the uplink signal, and the frequency band information according to the first receiving module, Determining, by the at least two sets of parameters of the signal, a first set of parameters; a generating module, configured to generate a first reference signal according to the first set of parameters determined by the first determining module; and a sending module, configured to: according to the control signaling, The network device sends the uplink signal including the first reference signal generated by the generating module.
  • the embodiment of the present invention provides a network device, where the network device includes: a first sending module, configured to send control signaling to a user equipment, where the control signaling is used to indicate a frequency band in which the user equipment sends an uplink signal.
  • a receiving module configured to receive the uplink signal that is sent by the user equipment, according to the control signaling, that includes the first reference signal
  • a determining module configured to send, according to the first sending module, the sending time information of the control signaling
  • the receiving module receives at least one of the receiving time information of the uplink signal and the frequency band information, and determines a first group of parameters in at least two sets of parameters used by the user equipment to generate a reference signal;
  • the first set of parameters determined by the first determining module demodulates the first reference signal.
  • the method for transmitting information, the user equipment, and the network device in the embodiment of the present invention determine a system for saving a reference signal by using at least one of receiving time information, transmission time information, and frequency band information. Signaling overhead to improve system performance.
  • FIG. 1 is a schematic flowchart of a method of transmitting information according to an embodiment of the present invention.
  • FIG. 2 is another schematic flowchart of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 3 is still another schematic flowchart of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 4 is still another schematic flowchart of a method for transmitting information according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method of transmitting information according to another embodiment of the present invention.
  • FIG. 6 is another schematic flowchart of a method for transmitting information according to another embodiment of the present invention.
  • FIG. 7 is still another schematic flowchart of a method for transmitting information according to another embodiment of the present invention.
  • FIG. 8 is still another schematic flowchart of a method for transmitting information according to another embodiment of the present invention.
  • 9 is a schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 10 is a schematic block diagram of a first determining module according to an embodiment of the present invention.
  • FIG. 11 is another schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 12 is still another schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 13 is still another schematic block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 14 is a schematic block diagram of a network device according to an embodiment of the present invention.
  • Figure 15 is a schematic block diagram of a first determining module in accordance with an embodiment of the present invention.
  • 16 is another schematic block diagram of a network device in accordance with an embodiment of the present invention.
  • FIG. 17 is still another schematic block diagram of a network device according to an embodiment of the present invention.
  • FIG. 18 is still another schematic block diagram of a network device according to an embodiment of the present invention. detailed description
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • General Packet Radio Service General Packet Radio Service
  • LTE Long Term Evolution
  • LTE frequency division duplex Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Unicom Mobile Telecommunication System
  • a user equipment may be referred to as a terminal (Terminal), a mobile station (Mobile Station, referred to as “MS”), a mobile terminal ( Mobile Terminal), etc.
  • the user equipment can communicate with one or more core networks via a Radio Access Network (“RAN")
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular” , a telephone, a computer with a mobile terminal, etc.
  • the user device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges voice and/or data with the wireless access network.
  • the network device may be a base station (base station, called “BS"), and the base station may be a base station in GSM or CDMA (Base Transceiver Station, called “BTS”), or It is a base station (NodeB, called “NB”) in WCDMA, and may also be an evolved base station (Evolutional Node B, called “ENB or e-NodeB”) in LTE;
  • the network device can also be an access point (Access Point, called “AP"), a remote radio device (Real Radio Equipment, called “RRE”), and a remote radio port (Remote Radio Head). RRH”), Remote Radio Unit (“RRU”) or Relay Node (“RN”).
  • AP Access Point
  • RRE Remote Radio Equipment
  • RN Remote Radio Head
  • the embodiments of the present invention are not limited, but for convenience of description, the following embodiments will be described by taking the base station BS as an example.
  • FIG. 1 shows a schematic flow diagram of a method 100 of transmitting information, which may be performed by a user equipment, in accordance with an embodiment of the present invention. As shown in FIG. 1, the method 100 includes:
  • S110 Receive control signaling sent by the network device, where the control signaling is used to indicate that the user equipment sends the frequency band information of the uplink signal.
  • S120 Determine, according to at least one of the two sets of parameters used to generate the reference signal, the first set of parameters, according to the received time information of the control signaling, the sending time information of the uplink signal, and the frequency band information.
  • the user equipment may be configured according to at least one of receiving time information of the control signaling sent by the receiving network device, sending time information of the uplink signal sent by the user equipment, and frequency band information indicated by the control signaling.
  • An information determining a first set of parameters in at least two sets of parameters for generating an RS thus, the user equipment may generate a first reference signal according to the first set of parameters, and send, according to the control signaling, to the network device An uplink signal including the first reference signal.
  • the method for transmitting information determines, by using at least one of information based on reception time information of receiving control signaling, transmission time information of transmitting an uplink signal, and frequency band information indicated by control signaling,
  • the parameters of the reference signal can save system signaling overhead and improve system performance.
  • first set of parameters means a set of parameters of at least two sets of parameters, and specifically, the "first set of parameters” means that the at least two sets of parameters are ultimately used for user equipment.
  • the set of parameters for generating the first reference signal is not limited to indicating that a set of parameters having a sequence number of one is selected after sorting the at least two sets of parameters.
  • the time when the network device sends the control signaling is the same as the time when the user equipment receives the control signaling, for example, the transmission time where the network device sends the control signaling.
  • the number of the transmission time interval (the number of the transmission time Interval) is the same as the number of the ⁇ where the user equipment receives the control signaling.
  • the time when the user equipment sends the uplink signal is the same as the time when the network equipment receives the uplink signal.
  • the definition of the time is not limited, and the embodiment of the present invention is described by taking only the example of the present invention, but the present invention is not limited thereto.
  • the term "group” refers only to a packet for carrying parameter information, which includes at least one piece of information, and does not indicate an operation requiring "packet".
  • the term "at least two sets of parameters” may mean at least two information packets, each of which includes parameters for generating RS; or may represent at least two types of parameters and the like.
  • the embodiment of the present invention can be applied not only to an application scenario in which one UE is served by multiple network devices, but also to an application scenario in which one UE is served by only one network device, which is not limited by this embodiment of the present invention. .
  • the relationship between the network device and the cell may be that one network device controls one or more cells, for example, one base station can control one or multiple cells; or one cell includes multiple network devices, for example, one cell can correspond to One or more RRUs; that is, the relationship between the network device and the cell is not limited, and the plurality of network devices may be deployed in a centralized or distributed manner.
  • the embodiment of the present invention is described by taking only one network device corresponding to one cell as an example, but the present invention is not limited thereto.
  • one ⁇ length is 1 ms, and includes 14 symbols, wherein the first 7 symbols and the last 7 symbols respectively constitute the first time slot and the second time slot; the bandwidth of the entire system includes several A physical resource block (called "PRB"), the bandwidth of a PRB includes 12 subcarriers.
  • PRB physical resource block
  • the network device sends a physical downlink control channel (Physical Downlink Control Channel), which is called "PDCCH” signaling, to the UE, the network device sends the information of the PRB allocated by the uplink signal to the UE, then the UE After receiving the PDCCH signaling, the ND is numbered according to the PDCCH signaling, and is in the ⁇ ⁇ , and in the corresponding PRB, the physical uplink shared channel (the physical uplink shared channel) PUSCH”) sends an uplink signal.
  • a physical downlink control channel Physical Downlink Control Channel
  • PUSCH Physical Uplink shared channel
  • the system bandwidth includes 50 PRBs
  • the network device sends PDCCH signaling to the UE, instructing the UE to send the PUSCH on the PRBs numbered 1 to 2 (this is the frequency band information indicated by the PDCCH), and the UE is numbered according to the PDCCH signaling.
  • CoMP technology is introduced.
  • One UE can be served by multiple network devices, that is, the uplink signal sent by the UE is received by multiple network devices, which can enhance the transmission efficiency or transmission reliability of the uplink signal.
  • one UE corresponds to multiple network devices, and corresponding to multiple sets of parameters for generating RS, and the RS sent by the UE at a certain time can only use one set of parameters. Therefore, the network device sends a special message to the UE. The command is used to indicate the parameters used by the UE to generate the RS.
  • the network device may send, by signaling (Signaling), multiple sets of parameters for instructing the UE to generate the RS, such signaling is usually semi-static signaling, such as in an LTE-A system.
  • Radio Resource Control (“Radio Resource Control"), or the user equipment may determine a parameter for generating an RS according to a cell identifier (ID); the network device may send dynamic signaling to the UE to schedule the UE to send
  • the uplink signal for example, the PDCCH signaling in the LTE-A system, includes parameter group information, and is used to indicate, by the UE, which group of parameters are selected from the plurality of groups of parameters to generate the RS.
  • the network device may add a message to the PDCCH signaling sent to the UE to indicate the number of a set of parameters of the plurality of parameters determined by the network device.
  • the difference between the semi-static signaling and the dynamic signaling is that the former is characterized in that: if the UE receives the semi-static signaling, the UE will always use the signaling before receiving the new signaling next time.
  • the latter is characterized in that: after receiving the dynamic signaling, the UE only applies to the transmission process of a limited one or more signals.
  • the information indicating the parameters for the UE to generate the RS is large, and the network device can send multiple sets of parameters to the UE through semi-static signaling, because the frequency of the semi-static signaling sent by the network device to the UE is far lower than that of the dynamic information. Therefore, in this way, the system signaling overhead can be effectively reduced.
  • the network device needs to send dynamic signaling to the UE in an explicit manner to indicate which set of parameters the UE adopts in an explicit manner, thereby significantly increasing the signaling overhead of the system, which is not conducive to system performance improvement.
  • the user equipment may be used according to at least one of receiving time information of receiving the control signaling, sending sending time information of the uplink signal, and frequency band information indicated by the control signaling.
  • the at least two sets of parameters of the generated RS determine which set of parameters are specifically used to generate the reference signal. That is, in the embodiment of the present invention, an implicit method is used to dynamically indicate parameters for generating an RS to the UE, thereby avoiding a large amount of dynamic signaling overhead, thereby saving the system. System signaling overhead to improve system performance.
  • the method for transmitting information determines, by using at least one of information based on reception time information of receiving control signaling, transmission time information of transmitting an uplink signal, and frequency band information indicated by control signaling,
  • the parameters of the reference signal can save system signaling overhead and improve system performance.
  • the user equipment may receive the control signaling sent by the network device.
  • the user equipment receives the PDCCH signaling sent by the network device, where the PDCCH signaling is used to indicate the frequency band information of the uplink signal sent by the user equipment.
  • the control signaling may also be used to indicate sending time information of the uplink signal sent by the user equipment.
  • the user equipment receives the PDCCH signaling at the number n, then the
  • the PDCCH signaling indicates that the user equipment sends an uplink signal to the user equipment at the number n+4; or the user equipment receives the PDCCH signaling, where the PDCCH signaling includes specific time information indicating that the user equipment sends the uplink signal.
  • the user equipment may determine, according to at least one of the two sets of parameters used to generate the reference signal, according to the received time information of receiving the control signaling, the sending time information of sending the uplink signal, and the frequency band information.
  • the first set of parameters may be determined, according to the received time information of receiving the control signaling, the sending time information of sending the uplink signal, and the frequency band information.
  • the user equipment may determine, according to the indication of the control signaling, the sending time information of the sending uplink signal; the user equipment may also determine, according to the preset rule, the receiving time information of the receiving control signaling.
  • the time information is sent by the user equipment.
  • the user equipment may also determine the sending time information according to other methods, and the embodiment of the present invention is not limited thereto.
  • the network device may first send two sets of parameters for instructing the UE to generate the RS by using RRC signaling, and send PDCCH signaling to the UE in the TTI with the number n; the UE may receive the two groups first.
  • the parameter, and after receiving the PDCCH signaling sent by the network device, the number n is determined according to the receiving time information, for example, according to the number n, the network device instructing the UE to use which one of the at least two sets of parameters, And using the set of parameters to generate an RS, and finally sending the RS to the network device.
  • the UE may obtain the sending time information that the network device instructs the UE to send the uplink signal, and determine, according to the sending time information, which of the at least two sets of parameters the network device instructs the UE to use. A set of parameters, and the RS is generated using the set of parameters, and finally the RS is sent to the network device.
  • the UE may acquire the network design.
  • the UE instructs the UE to send the frequency band information of the uplink signal, and determines the first group of parameters among the at least two sets of parameters according to the frequency band information.
  • the at least two sets of parameters sent by the network device to the user equipment include the 0th group parameter and the 1st group parameter. If the network device allocates the PRB numbered 1 to the UE, the UE may use the 0th group parameter to generate the RS; If the network device allocates a PRB numbered 2 to the UE, the UE can use the first group of parameters to generate the RS.
  • the user equipment may further determine the first group of parameters among the at least two sets of parameters according to the received time information, the sending time information, and the two or more pieces of information in the band information. It should also be understood that the user equipment may determine the first set of parameters based on the above information and based on predetermined rules, but the present invention is not limited to specific determination rules, which are described in detail below.
  • the user equipment In S130, the user equipment generates a first reference signal according to the first set of parameters.
  • the user sends an uplink signal including the first reference signal to the network device according to the control signaling, at a sending time and a frequency band indicated by the network device.
  • the uplink signal may also include a data signal or the like.
  • the method for transmitting information determines to be used for at least one of information based on reception time information of receiving control signaling, transmission time information of transmitting an uplink signal, and frequency band information indicated by the control signaling. Generating the parameters of the reference signal can save system signaling overhead and improve system performance.
  • the user equipment may determine the first group of parameters in the at least two sets of parameters according to at least one of the received time information, the sending time information, and the band information, and a predetermined rule.
  • the predetermined rule is, for example, a predetermined function that takes at least one of reception time information, transmission time information, and frequency band information as a variable; the predetermined rule may be at least one of reception time information, transmission time information, and frequency band information.
  • the information has a mapping of the corresponding relationship; the predetermined rule may also be other pre-configured criteria, and the embodiment of the present invention is not limited thereto.
  • the parity of the result determined by the user equipment according to the at least one of the received time information, the sending time information, and the frequency band information, and a predetermined rule, in the two sets of parameters included in the at least two sets of parameters Determine the first set of parameters.
  • the network device instructs the UE to send an uplink signal on the TTI numbered n+4 and the PRB numbered ml ⁇ m2, and the UE may determine, according to the following equation (1), the group number of the parameter used by the network device to indicate the UE.
  • A (n+4+ml) mod 2 ( 1 ) where mod represents the modulo operation and A represents the group number of the first set of parameters determined by the UE, that is, the UE can base the TTI number and network based on the uplink signal.
  • the network device sends a control signaling to the UE at the number n, instructing the UE to send an uplink signal on the ⁇ number n+4 and the PRB numbered ml ⁇ m2, the UE may be according to the following equation ( 2) to determine the group number of the parameter that the network device indicates to the UE:
  • A (n+n+4+ml) mod 2 ( 2 )
  • mod denotes a modulo operation
  • A denotes a group number of the first set of parameters determined by the UE, that is, the UE may according to the reception time information and the transmission time
  • Other embodiments are similar and will not be described again here.
  • the user equipment determines, according to the parity of the received time information, the parity of the sending time information, or the parity of the number of the first physical resource block PRB included in the frequency band information.
  • the first set of parameters is determined from the two sets of parameters included in at least two sets of parameters.
  • the UE can use the 0th group parameter to generate the RS; if the network device allocates the number 6 ⁇ 10 PRB, if the number of the first PRB is even, the UE can use the first group of parameters to generate the RS.
  • the method 100 further includes:
  • S121 Determine a range value according to at least one of the received time information, the sending time information, and the band information, and a predetermined rule.
  • the network device sends the range indication signaling to the UE.
  • the value range configured for the group 0 parameter is all even numbers, and the value range configured for the first group parameter is all odd numbers. It should be understood that the value range information corresponding to each group of parameters may be a specific value range, a number of each value range, and the like, and the embodiment of the present invention is not limited thereto.
  • the UE may calculate the range value according to the number n, thereby determining the range of values to which the range value belongs, that is, the calculated range value is odd or Is an even number to determine the generation of RS using the first or zero group parameters.
  • the rule is a predetermined function as shown in the following equation (3) or (4):
  • B n + D ( 3 )
  • B n ( 4 )
  • B represents the determined range value
  • D is a predetermined positive integer, which may be notified to the UE by the network device, for example, by other signaling.
  • the user equipment is configured according to at least one of the received time information, the sending time information, and the frequency band information, and according to an identifier or a random number of a cell to which the user equipment belongs.
  • the first set of parameters is determined from at least two sets of parameters.
  • the UE may be further determined to select the first group of parameters from the at least two sets of parameters according to the cell ID or a certain random number. For example: The UE may determine the first set of parameters according to the following equation (5) or (6).
  • Cell_ID represents the cell ID, usually the cell ID of the neighboring cell is different;
  • c(n_s) represents a random sequence, and
  • n_s represents the time number, For example, the number of ⁇ , c(n_s) means that the c values of different TTIs are different;
  • the specific design of the random sequence c is not limited, for example, the network device can send the information of the random sequence to the UE, so that the UE acquires the random sequence in different The value of the time; or the UE may acquire the random sequence according to the cell ID.
  • the UE may determine an initialization value of the random sequence according to the cell ID, and further determine the random sequence according to the initialization value.
  • the method for transmitting information according to the embodiment of the present invention is determined by determining, according to at least one of receiving time information of receiving control signaling, sending time information of sending an uplink signal, and frequency band information indicated by the control signaling.
  • the parameter used to generate the reference signal can save system signaling overhead and improve system performance; on the other hand, based on the identifier or random number of the cell to which the user equipment belongs, determine parameters for generating the reference signal, so that even different cells
  • the UE is scheduled to send uplink signals on the same resource, and the parameter groups used by the UE may also be random, so that the UEs of different cells may always use the same parameter group and may cause uplinks sent by UEs of different cells. Strong interference between signals.
  • the method 100 for transmitting information further includes: S160, receiving an enable indication signaling sent by the network device, where the enable indication signaling is used to indicate the user Whether the device determines the first group of parameters according to the at least one of the receiving time information, the sending time information, and the frequency band information;
  • the sending time is determined by at least one of information and the band information. That is, the user equipment determines, according to the enable indication signaling sent by the network device, whether the first set of parameters is determined according to at least one of the received time information, the sent time information, and the band information.
  • the UE may use the method of the present invention to generate the RS;
  • the sent enable indication signaling indicates that it is disabled, the UE does not use the above method.
  • the UE is fixedly
  • the RS is generated using, for example, a Group 0 parameter.
  • the first set of parameters is determined by at least one of the information, the transmission time information, and the frequency band information, thereby increasing flexibility of system processing and improving user experience.
  • the method 100 for transmitting information may further include: S170, determining the at least two sets of parameters, wherein at least one of the at least two sets of parameters is according to a cell to which the user equipment belongs The identity is determined, or sent by the network device to the user device.
  • the user equipment may receive, by semi-static signaling, at least two sets of parameters sent by the network device for generating the reference signal RS, and thereby determine the at least two sets of parameters; the user equipment may also be according to the user equipment
  • the identifier of the cell determines at least one of the at least two sets of parameters, and the remaining parameters may be sent by the network device to the user equipment.
  • Embodiments of the invention are not limited thereto.
  • the user equipment can receive RRC signaling sent by the network device, the RRC signaling including at least two sets of parameters for generating the RS. It should be understood that the network device may also transmit the at least two sets of parameters to the user device in other manners. Optionally, the user equipment receives two sets of parameters sent by the network device for generating the RS.
  • the at least two sets of parameters include sequence group number information, cyclic shift (Cyclic Shift), hop information, and sequence hop information. At least one kind of information.
  • the RS sent by the UE is used to facilitate the network side device to perform channel estimation to obtain the channel that the uplink signal experiences.
  • the network side device can receive the RS sent by the UE, and then according to the received
  • the RS is informed of the channel fading information experienced by the uplink RS; since the channel fading changes little in a certain period of time, the channel fading obtained by the network side device by detecting the RS is substantially similar to the channel fading received by the data symbol, and the network side device according to the channel
  • the fading information can demodulate the data information.
  • Accurate channel fading information needs to reduce the interference experienced by the RS.
  • the process of the UE generating an uplink RS may include the following process: 1.
  • the UE first determines a base sequence.
  • the network side device may send signaling to the UE to indicate that the UE turns on/off group hopping or sequence hopping.
  • group hopping or sequence hopping is enabled, RSs of different time slots use different base sequence groups or base sequence subgroups. Otherwise, the same base sequence group or base sequence subgroup is used.
  • the UE determines the base sequence used by the two time slots from the base sequence group or the base sequence subgroup based on the bandwidth allocated to the UE.
  • UEs of different cells are usually used to use different base sequence groups, wherein the basic sequence groups are characterized by: base sequences with low correlation between base sequences are divided into different groups; thus, from different cells
  • the uplink RSs sent by the UEs correspond to different base sequences, and the interference between them is small.
  • all base sequences are divided into 30 groups, and usually neighboring cells use different base sequence groups.
  • Group hopping is a technique of interference randomization, that is, the RSs sent by UEs in different time slots use different base sequence groups. This technique can randomize the interference between uplink RSs.
  • UE1 and UE2 are from cell 1 and cell 2, respectively, assuming that they use the first and second sets of base sequences to generate uplink RSs respectively.
  • the two sets of sequences The correlation between the two is relatively large (for example, the correlation between the base sequences of the 3rd and 4th groups is larger), then the interference between the two UEs is stronger, if the group hopping technique is not used, This strong interference will continue.
  • UE1 and UE2 use different base sequence groups in different time slots, for example, the first and second group base sequences are used in the first time slot, and the second time slot is used in the second time slot. 3, 4 sets of base sequences, thus avoiding the probability that the mutual interference between the RSs transmitted by the UEs of different cells continues to be strong (in the second time slot, the interference between UE1 and UE2 is reduced), that is, Yes, the interference is randomized.
  • Sequence hopping is also a technique for interference randomization.
  • the sequence hopping is: the RSs sent by the UE in different time slots use different subgroups of the sequence ⁇
  • the base sequence subgroups used to generate the RS are different, and the interference can also be randomized.
  • the specific embodiment is the same as the group hopping, and details are not described herein again.
  • the same base sequence group includes two base sequence subgroups, and the RSs sent by the UE in different time slots can be used differently.
  • the base sequence subgroup when the bandwidth occupied by the RS transmitted by the UE is greater than or equal to 6 PRBs, the same base sequence group includes two base sequence subgroups, and the RSs sent by the UE in different time slots can be used differently.
  • the base sequence subgroup when the bandwidth occupied by the RS transmitted by the UE is greater than or equal to 6 PRBs, the same base sequence group includes two base sequence subgroups, and
  • the network side device may send downlink signaling to the UE to enable/disable the two functions. Because the principles of the two functions are similar, the network side device respectively turns on/off these two signalings. Function, when the network side device turns on the group hopping, the sequence hopping is turned off (regardless of whether the configuration signaling indication corresponding to the sequence hopping is turned on or off), that is, the two functions cannot be simultaneously turned on, and the group hopping The priority is higher. And, the two signalings are semi-statically configured (e.g., configured by RRC signaling in an LTE-A system).
  • the network side device sends the semi-static CS value CS1 to the UE in the semi-static signaling, and sends the dynamic CS value CS2 to the UE in the scheduling information (dynamic signaling), and the UE performs the CS hopping preset for the corresponding cell according to the network side device.
  • CS hopping is also a technique for interference randomization, that is: UEs use different time slots in different time slots
  • the CS value is used to generate the RS. Since the CS values used by the UEs from different cells to generate RSs in different time slots are different, the interference can also be randomized. The specific embodiment is the same as the group hopping, and details are not described herein again.
  • the CS value that can be used by the RS sent by the UE includes 12 different from the group hopping and the sequence hopping.
  • the CS hopping is mandatory, that is, the network side device cannot be turned off. CS jumps. 3.
  • add an orthogonal mask Orthogonal mask (Orthogonal Cover Code, called "OCC" to the sequence.
  • OCC Orthogonal mask
  • the network side device may also send the OCC information to the UE.
  • the UE After receiving the UE, the UE uses the OCC to load the two RSs in the same port.
  • the OCC includes [+1 +1] and [+1 -1]. For example, if the network side device sends OCC[+l -1] to the UE, the UE multiplies the RS of the first time slot by +1 (or does not perform any processing), and multiplies the RS of the second time slot by - 1; Particularly low, the UE loading OCC[+l +1] into two RSs in the same frame is equivalent to not loading the OCC.
  • the network device can allocate different OCCs to different UEs, so that the RSs sent by these UEs are orthogonal (Orthogonal). For example, the network side device allocates PRB1 ⁇ 3 to UE1 and allocates OCC[+l+1] for it; allocates PRB1 ⁇ 5 to UE2, and assigns OCC[+l -1] to it, so that the RSs they send are mutual Orthogonal, the network side devices can distinguish the RSs sent by the two UEs when receiving their signals, so that the more accurate channel information corresponding to the two UEs can be respectively obtained, and the data of the two UEs are respectively demodulated. .
  • Subsequent processing includes, for example, Inverse Discrete Fourier Transform ("IDFT”), etc., and is no longer praised.
  • IDFT Inverse Discrete Fourier Transform
  • the sequence group number information is, for example, a value of u or a parameter for determining u;
  • the CS hopping information is, for example, a hop value of CS3(n_s) within one ,, or a parameter for determining CS3(n_s)
  • CS3(n_s) is usually also a random sequence, and the CS hopping information is the initialization value of the random sequence;
  • the group hopping information and/or the sequence hopping information is, for example, whether to enable group hopping and/or sequence hopping. It should be understood that embodiments of the invention are not limited thereto.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the method for transmitting information determines to be used for at least one of information based on reception time information of receiving control signaling, transmission time information of transmitting an uplink signal, and frequency band information indicated by the control signaling. Generating the parameters of the reference signal can save system signaling overhead and improve system performance.
  • FIG. 5 shows a schematic flowchart of a method 300 for transmitting information, which may be performed by a network device, such as a BS, an AP, an RRE, an RRH, according to an embodiment of the present invention.
  • a network device such as a BS, an AP, an RRE, an RRH, according to an embodiment of the present invention.
  • RRU or RN etc.
  • the method 300 includes:
  • S310 Send control signaling to the user equipment, where the control signaling is used to indicate that the user equipment sends the frequency band information of the uplink signal.
  • S320 Receive the uplink signal that is sent by the user equipment according to the control signaling, and includes the first reference signal.
  • S330 Determine, according to at least one of sending time information for transmitting the control signaling, receiving time information of receiving the uplink signal, and the frequency band information, at least one of two sets of parameters used by the user equipment to generate a reference signal.
  • the method for transmitting information determines, by using at least one of receiving time information of receiving an uplink signal, sending time information of transmitting control signaling, and frequency band information indicated by the control signaling, Generating the parameters of the reference signal can save system signaling overhead and improve system performance.
  • the sending time information of the network device transmitting the control signaling corresponds to the receiving time information of the user equipment receiving the control signal;
  • the receiving time information of the network device receiving the uplink signal corresponds to the sending time information of the uplink signal sent by the user equipment.
  • the network device determines, according to the parity determined by the at least one of the sending time information, the receiving time information, and the band information, and a predetermined rule, in the at least two groups.
  • the first set of parameters is determined from the two sets of parameters included in the parameter.
  • the network device includes, according to the parity of the sending time information, the parity of the receiving time information, or the parity of the number of the first physical resource block PRB included in the band information, the two included in the at least two sets of parameters The first set of parameters is determined in the group parameters.
  • the method 300 for transmitting information according to an embodiment of the present invention further includes:
  • a set of parameters including:
  • S331. Determine a range value according to at least one of the sending time information, the receiving time information, and the band information, and a predetermined rule. 5332. Determine, according to the value range information and the range value, the first set of parameters corresponding to the range of values to which the range value belongs.
  • the network device determines, according to the at least one of the sending time information, the receiving time information, and the frequency band information, and the identifier or the random number of the cell to which the user equipment belongs, The first set of parameters.
  • the method 300 further includes:
  • S360 sending an enable indication signaling to the user equipment, where the enable indication signaling is used to indicate whether the user equipment determines the first according to at least one of the sending time information, the receiving time information, and the frequency band information.
  • the enable indication signaling is used to indicate whether the user equipment determines the first according to at least one of the sending time information, the receiving time information, and the frequency band information.
  • a set of parameters including:
  • the sending time information and the receiving time are determined according to the sending time information.
  • the first set of parameters is determined by at least one of information and the band information.
  • the method 300 for transmitting information further includes:
  • S370 Determine the at least two sets of parameters, where at least one of the at least two sets of parameters is determined according to an identifier of a cell to which the user equipment belongs, or sent by the network device to the user equipment.
  • the network device may send at least two sets of parameters for generating a reference signal to the user equipment; the network device may also determine at least two sets of parameters for generating the RS according to the ID of the cell to which the user equipment belongs. At least one set of parameters in the network device; the network device may also determine at least two sets of parameters for generating the RS by using other methods, and the embodiment of the present invention is not limited thereto.
  • the at least two sets of parameters include at least one of sequence group number information, cyclic shift CS hopping information, group hopping information, and sequence hop information.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the method for transmitting information according to the embodiment of the present invention is based on receiving based on receiving an uplink signal.
  • the at least one of the time information, the transmission time information of the transmission control signaling, and the frequency band information indicated by the control signaling determines parameters for generating the reference signal, which can save system signaling overhead and improve system performance.
  • FIG. 9 shows a schematic block diagram of a user equipment 500 in accordance with an embodiment of the present invention.
  • the user equipment 500 includes:
  • the first receiving module 510 is configured to receive control signaling sent by the network device, where the control signaling is used to indicate frequency band information of the uplink signal sent by the user equipment;
  • the first determining module 520 is configured to receive, according to the first receiving module 510, the receiving time information of the control signaling, the sending time information of sending the uplink signal, and the at least one information of the frequency band information, for generating a reference signal. Determining a first set of parameters from at least two sets of parameters;
  • a generating module 530 configured to generate a first reference signal according to the first group of parameters determined by the first determining module 520;
  • the sending module 540 is configured to send, according to the control signaling, the uplink signal that includes the first reference signal generated by the generating module 530 to the network device.
  • the user equipment in the embodiment of the present invention determines to generate a reference by using at least one of receiving time information of receiving control signaling, sending time information of sending an uplink signal, and frequency band information indicated by the control signaling.
  • Signal parameters can save system signaling overhead and improve system performance.
  • the first determining module 520 includes: a first determining unit 521, configured to be used according to the received time information, the sending time information, and the frequency band information.
  • the at least one piece of information and the parity of the result determined by the predetermined rule determine the first set of parameters among the two sets of parameters included in the at least two sets of parameters.
  • the first determining module 520 includes:
  • the second determining unit 522 is configured to: according to the parity of the received time information, the parity of the sending time information, or the parity of the number of the first physical resource block PRB included in the frequency band information, where the at least two sets of parameters are included The first set of parameters is determined in the two sets of parameters.
  • the first determining module 520 includes:
  • the fifth determining unit 525 is configured to use, according to the receiving time information, the sending time information, and the frequency At least one of the information in the information, and the first set of parameters are determined among the at least two sets of parameters according to the identity or random number of the cell to which the user equipment belongs.
  • the user equipment 500 further includes: a second receiving module 550, configured to receive range indication signaling sent by the network device, where the range indication signaling includes The value range information corresponding to each of the at least two sets of parameters; the first determining module 520 includes:
  • a third determining unit 523 configured to determine a range value according to at least one of the received time information, the sending time information, and the band information, and a predetermined rule;
  • a fourth determining unit 524 configured to determine, according to the value range information received by the second receiving module 550 and the range value determined by the third determining unit 523, the first corresponding to the value range to which the range value belongs Group parameters.
  • the user equipment 500 further includes:
  • the third receiving module 560 is configured to receive an enable indication signaling sent by the network device, where the enable indication signaling is used to indicate whether the user equipment is based on at least the received time information, the sending time information, and the frequency band information.
  • the first determining module 520 includes:
  • the sixth determining unit 526 the enabling indication signaling used by the third receiving module 560, instructing the user equipment to determine the first information according to the at least one of the receiving time information, the sending time information, and the frequency band information.
  • the first set of parameters is determined according to at least one of the received time information, the transmitted time information, and the band information.
  • the user equipment 500 further includes: a second determining module 570, configured to determine the at least two sets of parameters, wherein at least one of the at least two sets of parameters The parameter is determined according to the identifier of the cell to which the user equipment belongs, or is sent by the network device to the user equipment.
  • a second determining module 570 configured to determine the at least two sets of parameters, wherein at least one of the at least two sets of parameters The parameter is determined according to the identifier of the cell to which the user equipment belongs, or is sent by the network device to the user equipment.
  • the at least two sets of parameters include at least one of sequence group number information, cyclic shift CS hopping information, group hopping information, and sequence hop information.
  • the user equipment 500 may correspond to the user equipment UE in the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the user equipment 500 are respectively implemented in order to implement FIG. 1 to FIG. 8 .
  • the corresponding processes of the various methods in the process are not repeated here.
  • the user equipment of the embodiment of the present invention receives the time-of-time letter based on receiving control signaling.
  • the at least one of the transmission time information of the uplink signal and the frequency band information indicated by the control signaling determines a parameter for generating the reference signal, which can save system signaling overhead and improve system performance.
  • FIG. 14 shows a schematic block diagram of a network device 700 in accordance with an embodiment of the present invention.
  • the network device 700 includes:
  • the first sending module 710 is configured to send control signaling to the user equipment, where the control signaling is used to indicate frequency band information of the uplink signal sent by the user equipment;
  • the receiving module 720 is configured to receive the uplink signal that is sent by the user equipment according to the control signaling, and includes the first reference signal.
  • the first determining module 730 is configured to: according to the sending time information that the first sending module 710 sends the control signaling, the receiving time information that the receiving module 720 receives the uplink signal, and at least one of the frequency band information, Determining a first set of parameters in at least two sets of parameters of the user equipment generating a reference signal;
  • the demodulation module 740 is configured to demodulate the first reference signal according to the first set of parameters determined by the first determining module 730.
  • the network device in the embodiment of the present invention determines to generate a reference by using at least one of receiving time information of receiving an uplink signal, sending time information of sending control signaling, and frequency band information indicated by the control signaling.
  • Signal parameters can save system signaling overhead and improve system performance.
  • the first determining module 730 includes: a first determining unit 731, configured to be used according to the sending time information, the receiving time information, and the frequency band information.
  • the at least one piece of information and the parity of the result determined by the predetermined rule determine the first set of parameters among the two sets of parameters included in the at least two sets of parameters.
  • the first determining module 730 includes:
  • the second determining unit 732 is configured to: according to the parity of the sending time information, the parity of the receiving time information, or the parity of the number of the first physical resource block PRB included in the band information, including at least two sets of parameters The first set of parameters is determined in the two sets of parameters.
  • the first determining module 730 includes:
  • the fifth determining unit 735 is configured to: according to the at least one of the sending time information, the receiving time information, and the frequency band information, and according to the identifier or random number of the cell to which the user equipment belongs, in the at least two sets of parameters Determine the first set of parameters.
  • the network device 700 further includes: a second sending module 750, configured to send range indication signaling to the user equipment, where the range indication signaling includes Value range information corresponding to each of the at least two sets of parameters;
  • the first determining module 730 includes:
  • a third determining unit 733 configured to determine a range value according to the at least one of the sending time information, the receiving time information, and the band information, and a predetermined rule;
  • the fourth determining unit 734 is configured to determine, according to the value range information sent by the second sending module 750 and the range value determined by the third determining unit 733, the first corresponding to the value range to which the range value belongs Group parameters.
  • the network device 700 further includes:
  • the third sending module 760 is configured to send, to the user equipment, an enable indication signaling, where the enable indication signaling is used to indicate whether the user equipment is based on at least one of the sending time information, the receiving time information, and the frequency band information.
  • Kind of information determines the first set of parameters
  • the first determining module 730 includes:
  • the sixth determining unit 736 the enabling indication signaling sent by the third sending module 760, instructing the user equipment to determine the first information according to the at least one of the sending time information, the receiving time information, and the frequency band information.
  • the first set of parameters is determined according to at least one of the transmission time information, the reception time information, and the frequency band information.
  • the network device 700 further includes: a second determining module 770, configured to determine the at least two sets of parameters, wherein at least one of the at least two sets of parameters The parameter is determined according to the identifier of the cell to which the user equipment belongs, or is sent by the network device to the user equipment.
  • a second determining module 770 configured to determine the at least two sets of parameters, wherein at least one of the at least two sets of parameters The parameter is determined according to the identifier of the cell to which the user equipment belongs, or is sent by the network device to the user equipment.
  • the at least two sets of parameters include at least one of sequence group number information, cyclic shift CS hopping information, group hopping information, and sequence hop information.
  • network device 700 may correspond to the network device in the embodiment of the present invention, and the foregoing and other operations and/or functions of the respective modules in the network device 700 are respectively implemented in FIG. 1 to FIG. The corresponding process of each method, for the sake of cleaning, will not be repeated here.
  • the network device in the embodiment of the present invention determines to generate a reference by using at least one of receiving time information of receiving an uplink signal, sending time information of sending control signaling, and frequency band information indicated by the control signaling.
  • Signal parameters can save system signaling overhead and improve system performance.
  • system and “network” are often used interchangeably herein.
  • the term "and/or,” in this context is merely an association that describes an associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, alone There are three cases of B.
  • the character ",” in this paper indicates that the contextual object is an "or" relationship.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold as a separate product When sold or used, it can be stored on a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

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

Abstract

La présente invention concerne un procédé de transmission d'informations, un équipement utilisateur et un dispositif de réseau. Le procédé consiste à recevoir une signalisation de commande envoyée par un réseau, la signalisation de commande étant utilisée pour ordonner à un équipement utilisateur d'envoyer des informations de bande d'un signal de liaison montante; à déterminer, conformément à au moins l'une d'une information de temps de réception concernant la réception de la signalisation de commande, d'une information de temps d'émission du signal de liaison montante, et d'une information de bande, un premier groupe de paramètres parmi au moins deux groupes de paramètres utilisés pour générer un signal de référence; à générer un premier signal de référence conformément au premier groupe de paramètres; et à envoyer le signal de liaison montante comprenant le premier signal de référence au dispositif de réseau conformément à la signalisation de commande. Conformément au procédé de transmission d'informations, à l'équipement utilisateur et au dispositif de réseau de certains modes de réalisation de la présente invention, les paramètres utilisés pour générer le signal de référence sont déterminés sur la base d'au moins l'une de l'information de temps de réception, de l'information de temps d'émission et de l'information de bande, cela permettant de réduire le surdébit de signalisation du système et d'améliorer les performances du système.
PCT/CN2012/078117 2012-07-03 2012-07-03 Procédé de transmission d'informations, équipement utilisateur et dispositif de réseau WO2014005282A1 (fr)

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