WO2009152696A1 - 上行探测参考信号发送、接收方法以及基站和移动终端 - Google Patents

上行探测参考信号发送、接收方法以及基站和移动终端 Download PDF

Info

Publication number
WO2009152696A1
WO2009152696A1 PCT/CN2009/000683 CN2009000683W WO2009152696A1 WO 2009152696 A1 WO2009152696 A1 WO 2009152696A1 CN 2009000683 W CN2009000683 W CN 2009000683W WO 2009152696 A1 WO2009152696 A1 WO 2009152696A1
Authority
WO
WIPO (PCT)
Prior art keywords
value
radio frequency
frequency transmitting
values
module
Prior art date
Application number
PCT/CN2009/000683
Other languages
English (en)
French (fr)
Inventor
潘学明
索士强
缪德山
丁昱
Original Assignee
大唐移动通信设备有限公司
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 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US12/999,800 priority Critical patent/US8755812B2/en
Priority to KR1020117001177A priority patent/KR101301231B1/ko
Priority to EP09765336.4A priority patent/EP2293461B1/en
Priority to JP2011513849A priority patent/JP2011525079A/ja
Publication of WO2009152696A1 publication Critical patent/WO2009152696A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a technique in which a mobile terminal of a multi-transmitting antenna transmits an uplink sounding reference signal. Background technique
  • SRS Soliding Reference Signal
  • the base station After receiving the SRS signal, the base station performs uplink timing detection, power control, uplink frequency domain scheduling, and link according to the uplink channel state information provided by the SRS signal. Adaptive and other operations.
  • TDD Time Division Duplex
  • MIMO Multiple Input Multiple Output
  • the base station can also perform channel estimation according to the SRS signal, and then utilize the uplink and downlink channels.
  • the symmetrical characteristic obtains the channel state information CSI (Channel State Information).
  • CSI Channel State Information
  • the base station Before the mobile terminal sends the SRS signal to the base station, the base station needs to configure some parameters for the radio frequency transmitting module of the mobile terminal, and send the parameters to the mobile terminal by using the signaling. After receiving the parameters, the mobile terminal configures the parameters to The radio frequency transmitting module; the radio transmitting module can transmit the SRS signal through the transmitting antenna according to the parameters allocated by the base station. After receiving the SRS signal sent by the mobile terminal, the base station can parse the parameters of the SRS signal, and determine the mobile terminal that sends the SRS signal according to the parameter parsed from the SRS signal.
  • the parameters configured by the base station to the radio frequency transmitting module of the mobile terminal include: duration of sending the SRS, period and specific symbol position, frequency domain position of transmitting the SRS, frequency hopping pattern, and TC value and CS value.
  • FIG. 1 is a schematic diagram of a prior art mobile terminal with two transmit antennas transmitting an SRS signal to a base station, and the specific sending process, as shown in FIG. 2, includes the following steps: S200: The base station obtains the number of transmitting antennas of the mobile terminal.
  • the base station can obtain the number of transmitting antennas of the mobile terminal.
  • the base station allocates various parameters for transmitting the SRS signal to the mobile terminal.
  • the parameters for transmitting the SRS signal allocated by the base station to the mobile terminal include: duration of sending the SRS, transmission period and specific symbol position, frequency domain position of transmitting the SRS, frequency hopping pattern, and TC value and
  • S202 The base station sends the foregoing allocation result to the mobile terminal by using dedicated signaling.
  • the mobile terminal After receiving the allocation result sent by the base station, the mobile terminal sends the SRS transmission period (hereinafter referred to as the transmission period) to the base station according to the result of the allocation.
  • the SRS transmission period (hereinafter referred to as the transmission period)
  • a transmission period in which the mobile terminal transmits an SRS signal to the base station may be a cycle time of 2 ms, 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, 320 ms, or the like. That is to say, after transmitting the SRS signal once, the mobile terminal transmits the next SRS signal after one transmission period.
  • the mobile terminal transmits the SRS signal to the base station through the transmitting antenna 1 according to the allocation result delivered by the base station, that is, the allocated parameters, including the TC value and the CS value.
  • S204 The mobile terminal sends an SRS signal to the base station through the transmitting antenna 2 according to the result of the allocation when detecting that the next transmission period arrives.
  • the parameters configured by the transmitting antenna 2 are the same as those of the transmitting antenna 1 in the previous step S203, and the SRS signals are sent to the base station by using the allocation parameters (including the TC value and the CS value) delivered by the base station.
  • the above steps S203, S204 are repeated; thus, the two transmit antennas of the mobile terminal alternately use the same time domain and frequency domain position, and the TC value and the CS value to transmit the SRS signal in different transmission periods.
  • the base station determines, according to the number of transmitting antennas of the mobile terminal, which transmitting antenna is received by the SRS signal received in different transmission periods: for example, the transmitting antenna 1 arrives at the transmitting period 1, 3, 5, 7...
  • the SRS signal is transmitted; the transmitting antenna 2 transmits the SRS signal when the transmission period 2, 4, 6, 8, ... arrives, and the base station determines the transmission period 1, 3, 5, 7. according to the number of transmitting antennas is 2. ...
  • the received SRS signal is transmitted by the transmitting antenna 1, and the SRS signal received during the transmission period 2, 4, 6, 8... Transmitted for transmit antenna 2.
  • a method in which a plurality of transmitting antennas of a prior art mobile terminal transmit an SRS is also referred to as a TDM (Time Division Multiplexing) method.
  • a mobile terminal of the prior art cannot transmit an SRS signal simultaneously (ie, in one transmission period) through multiple transmitting antennas.
  • the period length of the transmitted SRS signal is actually equivalent to N.
  • N is equal to the number of transmitting antennas of the mobile terminal; that is, one transmitting antenna of the mobile terminal may send the SRS signal to the base station again after two or more transmission periods; because one transmitting antenna transmits the SRS signal If the interval is too long, the base station cannot accurately know the status information of the uplink channel of each transmitting antenna through the transmitted SRS signal, and thus cannot accurately estimate the channel of each transmitting antenna. Summary of the invention
  • the embodiment of the present invention provides a method for receiving an uplink sounding reference signal and a base station, so that the base station can receive an uplink sounding reference SRS signal sent by multiple radio frequency transmitting modules of the mobile terminal in the same transmission period through multiple transmitting antennas.
  • the embodiment of the invention provides a method for transmitting an uplink sounding reference signal and a mobile terminal, so that multiple radio frequency transmitting modules of the mobile terminal can transmit an uplink sounding reference signal in the same transmission period through multiple transmitting antennas.
  • a method for receiving an uplink sounding reference signal includes:
  • Each radio frequency transmitting module of the receiving mobile terminal transmits an uplink sounding reference SRS signal according to a respective transmission comb TC value and a sequence cyclic shift CS value when the transmission period arrives, wherein the TC allocated for any two radio frequency transmitting modules The value and the CS value are not exactly the same;
  • An uplink sounding reference signal sending method includes:
  • each RF transmitting module is controlled to send an SRS signal according to the TC value and the CS value allocated for each; wherein the TC value and the CS value allocated for any two RF transmitting modules are incomplete. the same.
  • a base station comprising:
  • a signal receiving module configured to receive, by the respective radio frequency transmitting modules of the mobile terminal, the SRS signals sent according to the TC value and the CS value respectively allocated to the respective radio frequency transmitting modules, wherein the TC value and the CS allocated for any two radio transmitting modules are Values are not identical;
  • a signal determining module configured to determine, according to the TC value and the CS value respectively allocated to each radio frequency transmitting module, a radio frequency transmitting module corresponding to each SRS signal received by the signal receiving module.
  • a mobile terminal comprising: a plurality of transmitting antennas for transmitting an SRS signal, further comprising: a period detecting module, configured to detect whether a sending period is reached;
  • a signal sending module configured to: when the period detecting module detects that the sending period arrives, control each radio frequency transmitting module to send an SRS signal according to the TC value and the CS value allocated for each; wherein the TC value allocated for any two radio frequency transmitting modules And the CS value is not exactly the same.
  • the radio frequency transmitting modules of the mobile terminal can use the same TC value and the CS value, so that the radio frequency transmitting modules of the mobile terminal can adopt the FDM mode or the CDM mode according to the respective allocated TC values and CS values.
  • the SRS signal is transmitted through multiple transmit antennas in the transmission period, so that the base station can obtain more accurate uplink channel state information and perform more accurate channel estimation.
  • FIG. 1 is a schematic diagram of a mobile terminal of a multi-transmitting antenna of the prior art transmitting an SRS signal to a base station
  • FIG. 2 is a flow chart of a mobile terminal of a multi-transmitting antenna of the prior art transmitting an SRS signal to a base station
  • FIG. 4 is a schematic diagram of different mobile terminals transmitting CDS signals by using CDM technology in the prior art
  • FIG. 5 is a schematic diagram of a mobile terminal of a multi-radio transmitting module transmitting SRS to a base station according to an embodiment of the present invention; Schematic diagram of the signal;
  • 5b is a flowchart of a mobile terminal of a multi-radio transmission module transmitting an SRS signal to a base station according to an embodiment of the present invention
  • 6 is a schematic structural diagram of an internal structure of a base station according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of an internal structure of a mobile terminal according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an internal structure of a signal sending module according to an embodiment of the present invention. detailed description
  • the technical solution provided by the embodiment of the present invention is to add a radio frequency transmitting module to the mobile terminal, and configure different parameters for each radio frequency transmitting module of the mobile terminal by using the base station, so that each radio frequency transmitting module of the mobile terminal can pass in the same sending period.
  • the respective connected transmitting antennas transmit SRS signals, and these simultaneously transmitted SRS signals do not interfere with each other.
  • each radio frequency transmitting module respectively uses FDM (Frequency Division Multiplex) or CDM (Code Division Multiplex) through the respective connected transmitting antennas.
  • the SRS signal is transmitted in a manner such that the SRS signals transmitted by the radio frequency transmitting module(s) through the transmitting antenna(s) are not interfered with each other, that is, the plurality of transmitting antennas of the mobile terminal can be in the same SRS transmission period. Send the SRS signal.
  • the SRS signal of the mobile terminal needs to be modulated onto the carrier and sent to the base station.
  • the base station allocates a frequency domain of the carrier to the mobile terminal, so that the SRS signals transmitted by different mobile terminals use different frequency domain carriers; thus, the SRS signals transmitted by the mobile terminals do not interfere with each other.
  • the TC (Tansmission Comb) value can also be used to implement the mutual offset of the subcarrier levels in the frequency domain.
  • the mobile terminal 1 and the mobile terminal 2 transmit the SRS at the same symbol position, and the detection bandwidth BWsrs-1 of the mobile terminal 1 and the detection bandwidth BWsrs-2 of the mobile terminal 2 overlap; then the base station is the mobile terminal 1.
  • the TC0 is allocated, and the TC1 is allocated to the mobile terminal 2.
  • the SRS signals of the two users are mutually staggered in the frequency domain. In this way, different mobile terminals transmit the SRS signals according to the different TC values allocated, and the base station receives the different frequency domains.
  • the SRS signal determines that the signals in each frequency domain belong to each mobile terminal. As can be seen from the above, the SRS signals having different TC values do not interfere with each other.
  • the time-frequency resource means that the SRS signal is transmitted with the same symbol position and the same bandwidth start position and using the same TC value, and the base station allocates different CS (Cyclic Shift) values for each mobile terminal, so that different mobile terminals use
  • CS Cyclic Shift
  • the generation of the base sequence is defined by the physical layer standard, and is uniquely determined by the cell ID (identification), the SRS bandwidth, the uplink slot number of the transmitted SRS, etc.
  • the subsequent sequences (these sequences are mutually orthogonal), so that the SRS signals transmitted by different mobile terminals can also be distinguished from each other. For example, as shown in FIG.
  • the mobile terminal 1 and the mobile terminal 2 need to detect exactly the same bandwidth (BWsrs), and the TCs allocated by the two mobile terminals are the same (both TC0), then the base station allocates a cyclic shift to the mobile terminal 1 at this time.
  • the SRS is orthogonal to the code domain. In this way, different mobile terminals use the CDM method to transmit SRS signals according to different CS values allocated. After receiving the SRS signals in different code domains, the base station determines that the sequences of different code domains belong to different mobile terminals. It can be seen from the above that SRS signals with different CS values do not interfere with each other.
  • the embodiment of the present invention implements a schematic diagram of a plurality of transmitting antennas of a mobile terminal transmitting SRS signals in the same SRS transmission period.
  • the mobile terminal has multiple radio frequency transmitting modules and multiple transmitting antennas, and each radio transmitting module is respectively connected to one. (or multiple) transmit antennas.
  • the specific process of sending multiple SRS signals in multiple SRF transmission periods through multiple transmit antennas is shown in Figure 5b, including the following steps:
  • the base station allocates a transmission parameter to the mobile terminal: a duration of sending the SRS, a sending period and a specific symbol position, a frequency domain location for transmitting the SRS, and a frequency hopping pattern, and transmitting the transmission parameters to the mobile terminal.
  • the base station may send the transmission parameters to the mobile terminal by using high layer signaling, such as RRC (Radio Resource Control) signaling, or physical layer signaling, such as PDCCH (Physical Downlink Control Channel) signaling.
  • high layer signaling such as RRC (Radio Resource Control) signaling
  • RRC Radio Resource Control
  • PDCCH Physical Downlink Control Channel
  • S502 The mobile terminal configures the received transmission parameters to each transmit antenna.
  • the base station obtains the number of radio frequency transmitting modules of the mobile terminal.
  • the mobile terminal reports the number of radio transmission modules to the base station, and the base station receives the number of radio transmission modules reported by the mobile terminal. Since a plurality of radio frequency transmitting modules are configured in the mobile terminal to simultaneously transmit SRS signals through different transmitting antennas, the base station needs to obtain the number of radio frequency transmitting modules of the mobile terminal, so that the radio frequency transmitting modules are respectively configured according to the number of radio frequency transmitting modules. Assign the TC value and the CS value.
  • the base station separately allocates different TC values and CS values for each radio frequency transmitting module of the mobile terminal.
  • the base station allocates different TC values and CS values for each RF transmitting module, that is, the TC value and the CS value allocated by the base station for any two of the RF transmitting modules are not completely the same. In other words, the two RF transmitter modules are not assigned the same in these RF transmitter modules.
  • the TC value and the CS value are between any two RF transmitting modules, or the TC value is different, or the CS value is different, or the TC value and the CS value are different, so that any two RF transmitting modules can be guaranteed.
  • the SRS signals transmitted simultaneously through different transmit antennas can be distinguished; that is, any two RF transmit modules are guaranteed to transmit SRS signals in FDM mode or transmit SRS signals in CDM mode through different transmit antennas.
  • the base station can allocate the TC value and the CS value to each radio frequency transmitting module of the mobile terminal in multiple manners, and various allocation methods are introduced in subsequent sections.
  • the base station allocates the TC value and the CS value to each radio transmitting module of the mobile terminal by using the default number of radio transmitting modules, the mobile terminal does not have to report the number of radio transmitting modules to the base station.
  • S505 The base station sends the allocated allocation information to the mobile terminal.
  • the base station may send the allocation information of the TC value and the CS value to each radio transmitting module by using high layer signaling (such as RRC signaling) or physical layer signaling (such as PDCCH signaling) to the mobile terminal.
  • high layer signaling such as RRC signaling
  • PDCCH signaling physical layer signaling
  • the mobile terminal After receiving the allocation information, the mobile terminal determines, according to the allocation information, a TC value and a CS value respectively allocated by the base station for each radio frequency transmitting module, and configures each radio frequency transmitting module according to the determined TC value and the CS value.
  • the mobile terminal controls each radio transmitting module to connect through each other.
  • the transmit antenna transmits the SRS signal.
  • each radio frequency transmitting module configured with a transmission parameter and a TC value and a CS value that are not identical are simultaneously transmitting the SRS signal through the transmitting antenna. That is, when the transmission period arrives, the mobile terminal may have multiple transmit antennas simultaneously transmitting the SRS signal.
  • the base station After receiving the SRS signal sent by the mobile terminal through each transmitting antenna, the base station determines the radio frequency transmitting module corresponding to the received SRS signal.
  • the base station may determine, according to the specific symbol position of the SRS signal, or the frequency domain position of the SRS, which mobile terminal is sent by the mobile terminal, and specifically determine which mobile terminal the SRS signal is sent to. Well known to personnel, and will not be described here.
  • the base station After confirming that the SRS signal transmitted by the mobile terminal through each transmitting antenna is received, the base station compares the TC value and the CS value of the received SRS signal with the TC value and the CS value previously allocated for each radio transmitting module, when the received SRS When the TC value and the CS value of the signal are the same as the TC value and the CS value allocated by one of the radio frequency transmitting modules, it is determined that the received SRS signal is sent by the radio frequency transmitting module.
  • each RF transmitting module can transmit SRS signals in FDM mode or CDM mode.
  • the SRS signals transmitted by the FDM mode or the CDM mode can be distinguished from each other; therefore, each RF transmitting module can simultaneously transmit the SRS signals through the respective connected transmitting antennas, and the simultaneously transmitted SRS signals can be distinguished, thus moving
  • the multiple transmit antennas of the terminal can simultaneously transmit the uplink sounding reference signals in one transmission cycle. That is, when each transmission cycle arrives, the SRS signal can be transmitted through multiple transmit antennas.
  • the base station allocates different TC values and CS values for the frequency transmitting modules of the mobile terminal, and specifically adopts the following three specific solutions:
  • the base station allocates the same TC value and different CS values for each radio frequency transmitting module of the mobile terminal: For example, if the mobile terminal has four radio frequency transmitting modules, the base station allocates the same TC value to the four radio frequency transmitting modules, respectively, 4
  • the RF transmitter module is assigned four CS values: CS1, CS2, CS3, CS4.
  • the base station assigns different CS values to each RF transmitting module to follow certain rules. For example, the next CS value assigned is increased by a fixed offset from the last assigned CS value by a CS offset, as shown in Equation 1:
  • n is a natural number and takes a value of 1 to N, where N is the number of radio frequency transmitting modules.
  • 8 1 is the assigned CS initial value
  • CS n is the CS value of the nth RF transmitting module
  • CS_Shift is the set CS offset
  • m is a set positive integer.
  • a CS value occupies 3 bit bits, and its value ranges from 0 to 7.
  • You can set the CS offset CS_Shift 2, m is 8; for the case of 4 RF transmitting modules, CS initial
  • the transmitting module assigns different CS values.
  • the equalization method is used, that is, for a CS value segment (for example, the value segment is 0-7), according to the number N of radio frequency transmitting modules, N CS values having the same or substantially the same interval are taken.
  • the allocation information sent by the base station to the mobile terminal in the foregoing step S505 may also be in multiple manners.
  • the allocation information may include the TC value and the CS value allocated for each radio frequency transmitting module: for example, if there are four radio frequency transmitting modules, the sending information
  • the allocation information contains 4 TC values and 4 CS values. After receiving the four pairs of TC values and CS values, the mobile terminal configures the TC value and the CS value for each RF transmitting module.
  • the allocation information includes a TC value and different CS values: Since the base station allocates the same TC value to each radio transmitting module of the mobile terminal; therefore, the transmitted allocation information includes only one TC value and different The CS value is fine. The mobile terminal configures each radio frequency transmitting module according to the TC value and each different CS value.
  • the allocation information includes only one TC value and one CS value: Since the calculation of different CS values has a certain rule, after the base station sends a CS value to the mobile terminal, the mobile terminal can follow the same rule. The other CS values are calculated, and the TC value and the CS value are configured for each RF transmitting module according to the received TC value, the CS value, and the calculated other cs values. Therefore, the method for the base station and the mobile terminal to calculate each CS value is consistent, and the base station and the mobile terminal can communicate in advance.
  • the signaling determines the method for determining the CS value, or the mobile terminal may use a default CS value determination method (for example, the method of Equation 1) when receiving a pair of TC values and CS values for each transmission.
  • the antenna performs configuration of the TC value and the CS value.
  • the base station of the solution when transmitting the allocation information, is similar to the solution 1.
  • the allocation information may include the TC value and the CS value allocated to each radio frequency transmitting module, or may include only one CS value and different TC values, or may only Includes a CS value and a TC value.
  • the mobile terminal may calculate other TC values according to the transmitted TC value according to the same method as the base station calculates each TC value, and then calculate according to the calculation.
  • the result is the configuration of the TC value and the CS value for each RF transmitting module.
  • the mobile terminal configures the TCI and CS values for the radio frequency transmitting module 1, and configures the TC2 for the radio frequency transmitting block 2.
  • the base station allocates different CS values and different TC values for each radio transmitting module of the mobile terminal: that is, the CS values allocated for any two radio transmitting modules are different, and the TC values are also different.
  • the CS values allocated for any two radio transmitting modules are different, and the TC values are also different.
  • some kind of law calculation can also be used; when calculating different TC values, some kind of law calculation can also be used.
  • all the TC values and CS values allocated for each RF transmitting module may be sent; or only a pair of TC values and CS values may be transmitted, by moving
  • the terminal calculates other TC values and CS values according to a pair of TC values and CS values in the allocation information, and a formula for calculating the TC value and a formula for calculating the CS value, which are the same as the base station.
  • the base station and the second method may be used for allocation, that is, among the transmitting antennas, some of the radio transmitting modules are mutually
  • the TC values are the same and the CS values are different.
  • Some RF transmitting modules have the same CS value and different TC values.
  • they can be further combined with the allocation method in the third scheme.
  • Some of the RF transmitting modules and other RF transmitting modules are TC.
  • the value and CS value are different.
  • the transmitting antenna of the mobile terminal may be the same as the number of the radio transmitting module, that is, one radio transmitting module is connected to one transmitting antenna; the number of transmitting antennas may be more than that of the radio transmitting module, so that several transmissions are performed.
  • the antennas share a radio frequency transmitting module, and the common method can be the same as that of the prior art, and details are not described herein again.
  • a base station for receiving an uplink sounding reference signal transmitted by a mobile terminal includes: a signal receiving module 604, and a signal determining module 606.
  • the signal receiving module 604 is configured to receive the SRS signals sent by the respective radio frequency transmitting modules through the respective connected transmitting antennas.
  • the SRS signal is configured by the mobile terminal according to the allocation information sent by the base station, and the TC value and the CS value are respectively configured for each radio frequency transmitting module.
  • each radio frequency transmitting module passes the TC value and the CS value configured for each.
  • the respective connected transmit antennas are simultaneously transmitted; wherein the TC value and the CS value allocated for any two RF transmit modules are not completely the same.
  • the signal determining module 606 is configured to determine, after the signal receiving module 604 receives the SRS signal sent by each transmitting antenna, the radio frequency transmitting module corresponding to the SRS signal according to the TC value and the CS value of the SRS signal received by the signal receiving module 604. The specific determination method has been described above and will not be described here.
  • the base station further includes:
  • the allocating module 602 is configured to separately allocate a TC value and a CS value for each radio frequency transmitting module of the mobile terminal.
  • the allocation module 602 specifically allocates the TC value and the CS value for each radio frequency transmitting module, respectively, or any one or combination of the foregoing schemes 1, 2, or 3.
  • the distribution information sending module 603 is configured to send the allocation information allocated this time to the mobile terminal according to the allocation result of the allocation module 602.
  • the distribution information sent by the distribution information sending module 603 includes The information may be multiple, and the specific information included is as described above, and will not be described here.
  • the base station also includes:
  • the number obtaining module 601 is configured to obtain the number of radio frequency transmitting modules reported by the mobile terminal.
  • the allocation module 602 is further configured to allocate a TC value and a CS value to each of the radio frequency transmitting modules of the mobile terminal according to the number of radio frequency transmitting modules obtained by the number obtaining module 601.
  • a mobile terminal that transmits an uplink sounding reference signal according to an embodiment of the present invention includes: a plurality of transmitting antennas (not labeled in the figure), a signal sending module 704, and a period monitoring module 706.
  • a period monitoring module 706, configured to detect whether a sending period is reached
  • the signal sending module 704 is configured to: when the period monitoring module 706 detects that the sending period arrives, control each radio frequency transmitting module to send an SRS signal according to the TC value and the CS value allocated for each; wherein the TC value allocated for any two radio frequency transmitting modules And the CS value is not exactly the same.
  • the mobile terminal further includes:
  • the allocation information receiving module 702 is configured to receive, by the base station, allocation information for allocating a TC value and a CS value to each radio transmitting module according to the number of radio frequency transmitting modules.
  • the configuration module 703 is configured to determine, according to the allocation information received by the distribution information receiving module 702, the TC value and the CS value allocated by the base station for each radio frequency transmitting module, and configure each radio frequency transmitting module according to the determination result. Specifically, the configuration module 703 determines the TC value and the CS value allocated to each radio frequency transmitting module according to the allocation information, and configures the determined TC value and the CS value for each radio frequency transmitting module.
  • the mobile terminal also includes:
  • the number reporting module 701 is configured to report the number of radio frequency transmitting modules to the base station.
  • the signal sending module 704 includes a plurality of radio frequency transmitting modules (as shown in FIG. 8 ), each of the radio frequency transmitting modules is respectively connected to one (or more) transmitting antennas, and the radio frequency transmitting module is configured to use the TC value configured according to the configuration module 703 and The CS value transmits the SRS signal through the connected transmit antenna.
  • each radio frequency transmitting module allocates different TC values and CS values, so that each radio frequency transmitting module of the mobile terminal can adopt the FDM mode or the CDM mode according to the respective allocated TC value and CS value in the same sending period.
  • the SRS signal is transmitted through multiple transmitting antennas, so that the base station can obtain more accurate uplink channel state information and perform more accurate channel estimation. Count.
  • the allocation information sent to the mobile terminal includes only one TC value and one CS value, and the mobile terminal according to a TC value in the allocation information and A CS value determines the TC value and the CS value respectively configured by the base station for each transmit antenna, so that the allocation information sent by the base station occupies fewer bits in the signaling, thereby saving resources in the work. It can be completed by the program to instruct the relevant hardware.
  • the program can be stored in a computer readable storage medium such as: ROM/RAM, disk, CD, etc.

Landscapes

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

Description

上行探测参考信号发送、 接收方法以及基站和移动终端 技术领域
本发明涉及无线通信领域， 尤其涉及多发射天线的移动终端发送上行探 测参考信号的技术。 背景技术
SRS ( Sounding Reference signals, 上行探测参考信号） 为移动终端发送 的上行信号； 基站接收到 SRS信号后， 根据 SRS信号提供的上行信道状态信息 进行上行定时检测、 功率控制、 上行频域调度、链路自适应等操作。 对于 TDD ( Time Division Duplex, 时分双工） 系统， 当下行采用基于预处理的 MIMO ( Multiple Input Multiple Output, 多入多出）传输时， 基站还可根据 SRS信号 进行信道估计， 进而利用上下行信道对称特性， 获得下行信道状态信息 CSI ( Channel State Information )。
在移动终端向基站发送 SRS信号之前，基站需要先对移动终端的射频发射 模块配置一些参数， 并将这些参数通过信令下发到移动终端， 移动终端在接 收到这些参数后， 将参数配置到射频发射模块； 这样射频发射模块可以根据 基站分配的参数通过发射天线发送 SRS信号。 而基站接收到移动终端发送的 SRS信号后， 可以解析出 SRS信号的参数， 并根据从 SRS信号解析出的参数确 定发送该 SRS信号的移动终端。
通常，基站对移动终端的射频发射模块配置的参数有：发送 SRS的持续时 间、 周期和具体符号位置、 发送 SRS的频域位置以及跳频图案、 以及 TC值和 CS值。
本发明的发明人发现虽然目前的移动终端有的具有两个或多个发射天 线， 但是无法支持多个发射天线同时发送 SRS信号， 只能交替发送 SRS信号。 图 1为现有技术的具有两个发射天线的移动终端向基站发送 SRS信号的示意 图， 其具体发送流程， 如图 2所示， 包括如下步骤： S200: 基站获得移动终端的发射天线数目。
在移动终端接入时， 基站可获得该移动终端的发射天线数目。
S201 : 基站为移动终端分配发送 SRS信号的各种参数。
基站为移动终端分配的发送 SRS信号的参数包括： 发送 SRS的持续时间、 发送周期和具体符号位置、 发送 SRS的频域位置以及跳频图案、 以及 TC值和
CS值。
S202: 基站通过专属信令将上述的分配结果发送给移动终端。
S203:移动终端在接收到基站发送的分配结果后，在检测 SRS发送周期（此 后文中简称为发送周期）到达时， 根据分配的结果通过发射天线 1向基站发送
SRS信号。
移动终端向基站发送 SRS信号的一个发送周期通常可以是 2ms， 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, 320ms等周期时间。 也就是说， 移动终 端在发送了一次 SRS信号后， 间隔一个发送周期后再发送下一次的 SRS信号。 移动终端根据基站下发的分配结果， 即分配的参数（其中包括 TC值和 CS值） 通过发射天线 1向基站发送 SRS信号。
S204: 移动终端在检测到下一个发送周期到达时， 根据分配的结果通过 发射天线 2向基站发送 SRS信号。
发射天线 2所配置的参数与先前步骤 S203中的发射天线 1配置的参数一 样， 都是使用基站下发的分配参数（其中包括 TC值和 CS值） 向基站发送 SRS 信号。
重复上述步骤 S203、 S204; 这样， 移动终端的两个发射天线在不同的发 送周期中交替使用相同的时域和频域位置、以及 TC值和 CS值来发送 SRS信号。 而基站则根据移动终端的发射天线个数， 确定在不同的发送周期中接收到的 SRS信号对应为哪个发射天线发送的： 例如， 发射天线 1在发送周期 1、 3、 5、 7……到达时发送 SRS信号； 发射天线 2在发送周期 2、 4、 6、 8……到达时发送 SRS信号， 则基站根据发射天线的个数为 2， 确定出发送周期 1、 3、 5、 7... ... 接收的 SRS信号为发射天线 1发送， 发送周期 2、 4、 6、 8... ...接收的 SRS信号 为发射天线 2发送。 现有技术的移动终端的多个发射天线发送 SRS的方式也称 为 TDM (时分复用）方式。
本发明的发明人发现现有技术的移动终端无法通过多个发射天线同时 (即在一个发送周期中）发送 SRS信号， 对于其中一个发射天线而言， 其发 送 SRS信号的周期长度其实相当于 N个发送周期， N等于该移动终端的发射 天线的数目； 也就是说， 移动终端的一个发射天线要在两个或多个发送周期 后才能再次向基站发送 SRS信号； 由于一个发射天线发送 SRS信号的间隔时 间过长， 通常会导致基站无法通过发送的 SRS信号准确了解到各发射天线的 上行信道的状态信息， 也就无法对各发射天线进行准确的信道估计。 发明内容
本发明实施例提供了一种上行探测参考信号的接收方法及基站， 使得基 站可以接收移动终端的多个射频发射模块通过多个发射天线在同一发送周期 中发送的上行探测参考 SRS信号。
本发明实施例提供了一种上行探测参考信号发送方法及移动终端， 使得 移动终端的多个射频发射模块通过多个发射天线可以在同一发送周期中发送 上行探测参考信号。
一种上行探测参考信号的接收方法， 包括：
接收移动终端的各射频发射模块在发送周期到达时， 分别根据为各自分 配的传输梳 TC值和序列循环移位 CS值发送的上行探测参考 SRS信号，其中 为任意两个射频发射模块分配的 TC值和 CS值不完全相同；
根据所述分别为各射频发射模块分配的 TC值和 CS值， 确定出接收的每 一个 SRS信号对应的射频发射模块。
一种上行探测参考信号发送方法， 包括：
检测发送周期是否到达；
在发送周期到达时， 控制各射频发射模块根据为各自分配的 TC值和 CS 值发送 SRS信号；其中为任意两个射频发射模块分配的 TC值和 CS值不完全 相同。
一种基站， 包括：
信号接收模块， 用于接收移动终端的各射频发射模块在发送周期到达时， 分别根据为各自分配的 TC值和 CS值发送的 SRS信号，其中为任意两个射频 发射模块分配的 TC值和 CS值不完全相同；
信号确定模块， 用于根据所述分别为各射频发射模块分配的 TC值和 CS 值， 确定出所述信号接收模块接收的每一个 SRS信号对应的射频发射模块。
一种移动终端， 包括： 用于发送 SRS信号的多个发射天线， 还包括： 周期检测模块， 用于检测发送周期是否到达；
信号发送模块， 用于在所述周期检测模块检测到发送周期到达时， 控制 各射频发射模块根据为各自分配的 TC值和 CS值发送 SRS信号；其中为任意 两个射频发射模块分配的 TC值和 CS值不完全相同。
本发明实施例中由于为各射频发射模块分配了不完全相同的 TC值和 CS 值， 使得移动终端的各射频发射模块可以根据各自分配的 TC值和 CS值采用 FDM方式、 或者 CDM方式在同一发送周期中通过多个发射天线发送 SRS信 号， 从而使得基站可以获得更为准确的上行信道状态信息、 进行更准确的信 道估计。 附图说明
图 1为现有技术的多发射天线的移动终端向基站发送 SRS信号的示意图； 图 2为现有技术的多发射天线的移动终端向基站发送 SRS信号的流程图； 图 3为现有技术的不同移动终端采用 FDM技术发送 SRS信号的示意图； 图 4为现有技术的不同移动终端采用 CDM技术发送 SRS信号的示意图； 图 5a为本发明实施例的多射频发射模块的移动终端向基站发送 SRS信号 的示意图；
图 5b为本发明实施例的多射频发射模块的移动终端向基站发送 SRS信号 的流程图； 图 6为本发明实施例的基站内部结构示意图；
图 7为本发明实施例的移动终端内部结构示意图；
图 8为本发明实施例的信号发送模块内部结构示意图。 具体实施方式
本发明实施例提供的技术方案是在移动终端中再增加射频发射模块， 并 通过基站对移动终端的各射频发射模块配置不同的参数， 使得移动终端的各 射频发射模块可以在同一发送周期中通过各自连接的发射天线发送 SRS 信 号， 并且这些同时发送的 SRS信号相互不会干扰。 例如， 对移动终端的多个 射频发射模块配置不同的参数后， 各射频发射模块分别通过各自连接的发射 天线以 FDM ( Frequency Division Multiplex, 频分复用）或者 CDM ( Code Division Multiplex, 码分复用）方式来发送 SRS信号， 从而使得（多个）射 频发射模块通过（多个）发射天线发送的 SRS信号相互不会千扰， 也就是使 得移动终端的多个发射天线可以在同一 SRS发送周期中发送 SRS信号。
以下先介绍一下 FDM技术： 移动终端的 SRS信号需要调制到载波上发 送到基站。基站为移动终端分配载波的频域，这样， 不同移动终端发送的 SRS 信号采用不同频域载波； 这样， 各移动终端发送的 SRS信号相互不会干扰。 进一步， 在同一频域的载波， 还可以利用 TC ( Tansmission Comb, 传输梳） 值来在频域上实现子载波级的相互错开。 通过对移动终端配置不同的 TC值， 也可以实现各移动终端发送 SRS信号相互不会干扰。 例如图 3所示， 移动终 端 1 和移动终端 2 在同一符号位置发送 SRS， 且移动终端 1 的探测带宽 BWsrs—l和移动终端 2的探测带宽 BWsrs— 2有重叠部分； 则基站为移动终端 1分配 TC0， 为移动终端 2分配 TC1 , 则两用户的 SRS信号在频域上相互错 开了； 这样， 不同的移动终端根据分配的不同 TC值采用 FDM方式发送 SRS 信号， 基站接收不同频域上的 SRS信号， 确定各频域上的信号分属于各移动 终端。 从上述可以看出， TC值不同的 SRS信号相互不会干扰。
有关 CDM技术： 当不同移动终端采用完全相同的时频资源（这里相同的 时频资源是指， 符号位置相同且带宽起始位置相同且使用相同 TC值）发送 SRS信号， 基站为各移动终端分配不同的 CS ( Cyclic Shift, 序列循环移位） 值， 则不同移动终端使用对相同的基序列 （ZadeOff-Chu序列， 该基序列的生 成由物理层标准规定， 由小区 ID ( Identity, 标识）、 SRS带宽、 发送 SRS的 上行时隙号等唯一确定）进行不同循环移位后的序列 （这些序列是相互正交 的）， 这样不同移动终端发送的 SRS信号也可以彼此区分开。 例如图 4所示， 移动终端 1和移动终端 2需要探测完全相同的一段带宽 （BWsrs ), 且两移动 终端分配的 TC相同 （都是 TC0 )， 则此时基站为移动终端 1分配循环移位值 CS0=Cyclic— shift— 1 , 为移动终端 2分配循环移位值 CSl=Cyclic— shift— 2， 则两 移动终端对相同的基序列分别进行循环移位得到各自的参考信号序列， 这样 两用户的 SRS在码域上实现了正交。 这样， 不同的移动终端才 据分配的不同 CS值采用 CDM方式发送 SRS信号，基站接收不同码域上的 SRS信号后，确 定不同码域的序列分属于不同的移动终端。从上述可以看出， CS值不同的 SRS 信号相互不会干扰。
本发明实施例实现移动终端多个发射天线在同一 SRS 发送周期中发送 SRS信号的示意图， 如图 5a所示， 移动终端具有多个射频发射模块和多个发 射天线， 各射频发射模块分别连接一个（或多个）发射天线。 多个射频发射 模块通过多个发射天线在同一 SRS发送周期中发送 SRS信号的具体流程如图 5b所示， 包括如下步骤：
S501: 基站为移动终端分配发射参数： 发送 SRS的持续时间、 发送周期 和具体符号位置、 发送 SRS的频域位置以及跳频图案， 并将这些发射参数发 送给移动终端。
基站可以通过高层信令， 如 RRC ( Radio Resource Control, 无线资源控 制）信令、 或物理层信令， 如 PDCCH ( Physical Downlink Control Channel, 物理下行控制信道）信令将这些发射参数发送给移动终端。
S502: 移动终端将接收的这些发射参数配置到各发射天线。
S503: 基站获得移动终端的射频发射模块的数目。 移动终端向基站上报射频发射模块数目， 基站接收移动终端上报的射频 发射模块数目。 由于在移动终端中配置了多个射频发射模块， 用以同时通过 不同发射天线发送 SRS信号， 基站需要获得移动终端的射频发射模块数目， 从而根据射频发射模块的个数来分别为各射频发射模块分配 TC值和 CS值。
S504:基站为该移动终端的各射频发射模块分别分配不完全相同的 TC值 和 CS值。
基站为各射频发射模块分别分配不完全相同的 TC值和 CS值， 即基站为 这些射频发射模块中的任意两个射频发射模块分配的 TC值和 CS值不完全相 同。 也就是说， 在这些射频发射模块中不会为两个射频发射模块分配一样的
TC值和 CS值一一任意两个射频发射模块之间， 或者是 TC值不一样、 或者 是 CS值不一样、 或者是 TC值和 CS值都不一样， 从而可以保证任意两个射 频发射模块通过不同发射天线同时发送的 SRS信号可以被区分开； 即保证任 意两个射频发射模块通过不同发射天线是以 FDM方式发送 SRS信号、 或者 是以 CDM方式发送 SRS信号。
具体的， 基站为移动终端的各射频发射模块分别分配 TC值和 CS值可以 有多种方式， 各种分配方式将在后续部分介绍。
这里需要指出的是， 如果基站以默认的射频发射模块数目来为移动终端 的各射频发射模块分配 TC值和 CS值， 则移动终端就不必向基站上报射频发 射模块数目。
S505: 基站将此次分配的分配信息发送给移动终端。
基站可以通过高层信令（如 RRC信令）、或物理层信令（如 PDCCH信令） 将此次对各射频发射模块分别分配 TC值和 CS值的分配信息发送给移动终 端。 基站发送的分配信息也可以是多种的， 各种分配信息将在后续部分介绍。
S506: 移动终端接收到分配信息后， 根据该分配信息确定基站为各射频 发射模块分别分配的 TC值和 CS值， 并根据确定的 TC值和 CS值来配置各 射频发射模块。
S507: 当发送周期到达时， 移动终端控制各射频发射模块通过各自连接 的发射天线发送 SRS信号。
当移动终端检测发送周期到达时， 各配置了发射参数、 以及不完全相同 的 TC值和 CS值的射频发射模块通过发射天线同时发送 SRS信号。也就是说， 当发送周期到达时， 移动终端可以有多个发射天线同时发送 SRS信号。
S508: 基站接收到移动终端通过各发射天线发送的 SRS信号后， 确定出 接收的 SRS信号对应的射频发射模块。
基站接收到 SRS信号后， 可以根据 SRS信号的具体符号位置、 或者发送 SRS的频域位置确定该接收的 SRS信号为哪个移动终端发送的，具体确定 SRS 信号为哪个移动终端发送的为本领域技术人员所熟知， 此处不再赘述。 在确 认接收到移动终端通过各发射天线发送的 SRS信号后， 基站根据接收的 SRS 信号的 TC值和 CS值与先前为各射频发射模块分配的 TC值和 CS值进行比 对， 当接收的 SRS信号的 TC值和 CS值与其中一个射频发射模块分配的 TC 值和 CS值相同时， 即确定接收的 SRS信号为该射频发射模块发送的。
由于， 各射频发射模块分别分配了不完全相同的 TC值和 CS值， 则各射 频发射模块之间可以采用 FDM方式、 或者 CDM方式发送 SRS信号。 采用 FDM方式、 或者 CDM方式发送的 SRS信号互相之间可以区分开； 因此， 各 射频发射模块可以通过各自连接的发射天线同时发送 SRS信号， 而同时发送 的 SRS信号可以被区分开， 这样， 移动终端的多个发射天线就可以同时在一 个发送周期中发送上行探测参考信号。 也就是说， 当每个发送周期到达时， 可以通过多个发射天线发送 SRS信号了。
上述步骤 S504中基站为移动终端的 频发射模块分别分配不完全相同 的 TC值和 CS值具体可以采用如下三种具体方案：
方案一
基站为移动终端的各射频发射模块分配相同的 TC值、 不同的 CS值： 例 如， 移动终端有 4个射频发射模块， 则基站为这 4个射频发射模块分配了相 同的 TC值， 分别为 4个射频发射模块分配了 4个 CS值： CS1、 CS2、 CS3、 CS4。一般来说，基站为各射频发射模块分配不同的 CS值会遵循一定的规律。 比如， 分配的下一个 CS值比上一个分配的 CS值增加一固定偏移量一一 CS 偏移量， 如公式 1所示：
CS„+1 = ( CS„ + CS— Shift ) % m ( 1 )
其中， n为自然数分别取值 1〜N, N为射频发射模块数目， 。81为分配的 CS初始值， CSn为第 n个射频发射模块的 CS值， CS— Shift为设定的 CS偏移 量， m为一设定的正整数。 通常一个 CS值占用 3个比特 bit位， 其取值范围 为 0-7; 则可以设定 CS偏移量 CS— Shift=2, m为 8; 若对于 4个射频发射模 块的情况， CS初始值 CSfO, 据公式 1可以得到： CS2=2、 CS3=4、 CS4=6。 发射模块分配不同的 CS值。 比如， 采用均分法， 即对于一个 CS取值段（例 如取值段为 0-7 ), 根据射频发射模块的数目 N， 取间隔相同或基本相同的 N 个 CS值。 比如， CS取值段为 0-7， 有 2个射频发射模块， 则可以分别为 2个 射频发射模块分配 CS1=0、 CS2=4; 或者 CS1=3、 CS2=6等。
上述步骤 S505中基站向移动终端发送的分配信息也可以有多种方式： 例 如， 分配信息中可以包含为各射频发射模块分配的 TC值和 CS值： 比如有 4 个射频发射模块， 则发送的分配信息中包含有 4个 TC值和 4个 CS值。 移动 终端接收了这 4对 TC值和 CS值后，分别为各射频发射模块配置 TC值和 CS 值。
或者， 分配信息中包含一个 TC值和各不同的 CS值： 由于基站为移动终 端的各射频发射模块分配的是相同的 TC值； 因此，发送的分配信息中只包含 一个 TC值和各不同的 CS值就可以了。移动终端根据该 TC值和各不同的 CS 值为各射频发射模块进行配置。
或者， 分配信息中只包含一个 TC值和一个 CS值： 由于各不同的 CS值 的计算是具有某种规律的， 因此， 基站向移动终端发送了一个 CS值后， 移动 终端可以根据相同的规律计算出其它 CS值， 并根据接收的 TC值、 CS值和 计算出的其它 cs值为各射频发射模块进行 TC值和 CS值的配置。 这就需要 基站和移动终端计算各 CS值的方法是一致的，则基站与移动终端可以事先通 过信令确定釆用的 CS值确定方法， 或者也可以移动终端在收到一对 TC值和 CS值时， 采用某种默认的 CS值确定方法（例如公式 1的方法）， 来为各发射 天线进行 TC值和 CS值的配置。
方案二
基站为移动终端的各射频发射模块分配相同的 CS值、 不同的 TC值： 为 各射频发射模块分配不同的 TC值同样可以采用类似于方案一中的固定偏移 量法、 或者均分法， 或者其它方法， 此处不再赘述。 不过要取得较好的信号 发送效果，各 TC值之间的间隔不宜过小； 目前来说，对于 2个射频发射模块， 2个射频发射模块的 TC值取反， 即 TC1=! TC2, 则射频发射模块根据分配的 TC值通过发射天线发送 SRS信号的效果会比较好。
本方案的基站在发送分配信息时， 与方案一类似， 分配信息既可以包括 为各射频发射模块分配的 TC值和 CS值， 也可以只包括一个 CS值和各不同 的 TC值， 也可以只包括一个 CS值和一个 TC值。 而对于分配信息只包括一 个 CS值和一个 TC值的情况， 与方案一类似， 移动终端可以根据与基站计算 各 TC值相同的方法， 来根据发送的 TC值计算其它的 TC值， 然后根据计算 的结果为各射频发射模块进行 TC值和 CS值的配置。 例如， 移动终端有 2个 射频发射模块， 基站为 2个射频发射模块分配了相同的 CS值， 并分别分配了 TC1、 TC2; 其中 TC1=! TC2, 则基站向移动终端发送的分配信息中包含了 CS值以及 TC1 ,移动终端根据 TC1 ,将 TC1取反， 即得到 TC2: TC2=! TCI; 由此， 移动终端为射频发射模块 1配置 TCI、 CS值， 为射频发射椟块 2配置 TC2、 CS值。
方案三
基站为移动终端的各射频发射模块分配不同的 CS值、 不同的 TC值： 也 就是为任意两个射频发射模块分配的 CS值不相同、 TC值也不相同。 这种情 况， 在计算各不同的 CS值时， 也可采用某种规律计算； 在计算各不同 TC值 时， 也可采用某种规律计算。 在发送分配信息时， 既可以发送所有为各射频 发射模块分配的 TC值和 CS值； 也可以只发送一对 TC值和 CS值， 由移动 终端根据分配信息中的一对 TC值和 CS值、 以及与基站相同的计算 TC值的 公式和计算 CS值的公式来计算其它 TC值和 CS值。
当然， 基站在为移动终端的各射频发射模块分配 TC值和 CS值时， 可以 结合上述方案一和方案二的方法来进行分配， 也就是， 在这些发射天线中， 有的射频发射模块相互之间 TC值相同、 CS值不同； 有的射频发射模块之间 则 CS值相同、 TC值不同； 或者还可以进一步结合方案三中的分配方法， 其 中有的射频发射模块与其它射频发射模块的 TC值和 CS值都不相同。
这里需要指出的是， 移动终端的发射天线可以与射频发射模块的数目相 同， 也就是， 一个射频发射模块对应连接一个发射天线； 发射天线的数目也 可以多于射频发射模块， 这样， 几个发射天线共用一个射频发射模块， 共用 的方法可以与现有技术的相同， 此处不再赘述。
本发明实施例提供的一种接收移动终端发送的上行探测参考信号的基 站， 如图 6所示， 包括： 信号接收模块 604、 信号确定模块 606。
信号接收模块 604，用于接收各射频发射模块分别通过各自连接的发射天 线发送的 SRS信号。 该 SRS信号为在移动终端根据基站发送的分配信息分别 为各射频发射模块配置 TC值和 CS值后， 在每个发送周期到达时， 各射频发 射模块根据为各自配置的 TC值和 CS值通过各自连接的发射天线同时发送 的； 其中为任意两个射频发射模块分配的 TC值和 CS值不完全相同。
信号确定模块 606， 用于在信号接收模块 604接收到各发射天线发送的 SRS信号后，根据信号接收模块 604接收的 SRS信号的 TC值和 CS值确定出 SRS信号对应的射频发射模块。 具体确定方法前面已经描述， 此处不再赘述。
进一步， 基站还包括：
分配模块 602， 用于为所述移动终端的各射频发射模块分别分配 TC值和 CS值。 分配模块 602具体为各射频发射模块分别分配 TC值和 CS值的方法 可以釆用上述方案一、 二或三中的任一或者组合方法。
分配信息发送模块 603 ,用于根据分配模块 602的分配结果向所述移动终 端发送此次分配的分配信息。 分配信息发送模块 603发送的分配信息包含的 信息可以是多种， 具体包含的信息如前所述， 此处不再赘述。
基站还包括：
数目获得模块 601 , 用于获得移动终端上报的射频发射模块数目。
分配模块 602还用于根据数目获得模块 601获得的射频发射模块数目为 所述移动终端的各射频发射模块分别分配 TC值和 CS值。
本发明实施例提供的一种发送上行探测参考信号的移动终端， 如图 7所 示， 包括： 多个发射天线（图中未标）、信号发送模块 704、周期监测模块 706。
周期监测模块 706, 用于检测发送周期是否到达；
信号发送模块 704， 用于在周期监测模块 706检测到发送周期到达时，控 制各射频发射模块根据为各自分配的 TC值和 CS值发送 SRS信号；其中为任 意两个射频发射模块分配的 TC值和 CS值不完全相同。
进一步， 移动终端还包括：
分配信息接收模块 702，用于接收基站根据射频发射模块数目为各射频发 射模块分配 TC值和 CS值的分配信息。
配置模块 703，用于根据分配信息接收模块 702接收的分配信息确定基站 为各射频发射模块分配的 TC值和 CS值， 并根据确定结果配置各射频发射模 块。具体的， 配置模块 703根据分配信息确定为各射频发射模块分配的 TC值 和 CS值， 并对各射频发射模块配置确定的 TC值和 CS值。
移动终端还包括：
数目上报模块 701， 用于向基站上报射频发射模块的数目。
在信号发送模块 704中包含有多个射频发射模块（如图 8所示）， 各射频 发射模块分别连接一个（或多个）发射天线， 射频发射模块用于根据配置模 块 703配置的 TC值和 CS值通过连接的发射天线发送 SRS信号。
本发明实施例由于各射频发射模块分配了不完全相同的 TC值和 CS值， 使得移动终端的各射频发射模块可以根据各自分配的 TC值和 CS值采用 FDM 方式、 或者 CDM方式在同一发送周期中通过多个发射天线发送 SRS信号， 从而使得基站可以获得更为准确的上行信道状态信息、 进行更准确的信道估 计。
由于基站虽然为各射频发射模块分配了不同的 TC值或者 CS值， 但其向 移动终端发送的分配信息中只包括了一个 TC值和一个 CS值， 移动终端根据 分配信息中的一个 TC值和一个 CS值确定出基站为各发射天线分别配置的 TC 值和 CS值， 从而使得基站发送的分配信息占用信令中较少的 bit位， 节约了 工中资源。 是可以通过程序来指令相关的硬件来完成， 该程序可以存储于计算机可读取 存储介盾中， 如： ROM/RAM、 磁碟、 光盘等。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领域的普 通技术人员来说， 在不脱离本发明原理的前提下， 还可以作出若干改进和润 饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

1、 一种上行探测参考信号的接收方法， 其特征在于， 包括： 接收移动终端的各射频发射模块在发送周期到达时， 分别根据为各自分 配的传输梳 TC值和序列循环移位 CS值发送的上行探测参考 SRS信号，其中 为任意两个射频发射模块分配的 TC值和 CS值不完全相同；
根据所述分别为各射频发射模块分配的 TC值和 CS值， 确定出接收的每 一个 SRS信号对应的射频发射模块。
2、 如权利要求 1所述的方法， 其特征在于， 在所述接收移动终端的各射 频发射模块在发送周期到达时， 分别根据为各自分配的 TC值和 CS值发送的 SRS信号之前， 还包括：
为各射频发射模块分配 TC值和 CS值，并向所述移动终端发送分配信息； 以及
移动终端根据所述分配信息确定为各射频发射模块分配的 TC值和 CS 值。
3、 如权利要求 2所述的方法， 其特征在于， 在所述为各射频发射模块分 配 TC值和 CS值之前， 还包括：
获得移动终端的射频发射模块数目； 以及
所述为各射频发射模块分配 TC值和 CS值， 具体包括：
根据获得的射频发射模块数目， 为各射频发射模块分配 TC值和 CS值。
4、 如权利要求 2所述的方法， 其特征在于， 所述为各射频发射模块分配 TC值和 CS值， 具体包括：
为各射频发射模块分配相同的 TC值、 不同的 CS值； 或者
为各射频发射模块分配相同的 CS值、 不同的 TC值； 或者
为所述射频发射模块中任意两个射频发射模块分配的 CS值不相同、以及 任意两个射频发射模块分配的 TC值不相同。
5、 如权利要求 4所述的方法， 其特征在于， 所述为各射频发射模块分配 不同的 CS值， 具体根据如下公式：
CSn+1 = ( CSn + CS— Shift ) % m
其中， n为自然数分别取值 1〜N, N为射频发射模块数目， CSn为第 n个 射频发射模块的 CS值， CS— Shift为设定的 CS偏移量， m为一设定的正整数。
6、 如权利要求 5所述的方法， 其特征在于， 所述分配信息包括： 所述相 同的 TC值、 以及所述不同的 CS值中的一个 CS值； 以及
根据所述分配信息确定为各射频发射模块分配的 TC值和 CS值， 具体包 括：
根据所述分配信息中的 TC值确定为各射频发射模块分配所述相同的 TC 值；
根据所述分配信息中的 CS值、 以及所述公式确定所述不同的 CS值； 确定为各射频发射模块分配各不同的 CS值。
7、 如权利要求 4所述的方法， 其特征在于， 所述射频发射模块数目为 2; 以及
所述为各射频发射模块分配不同的 TC值， 具体包括：
分别为两个射频发射模块分配了 TC1、 TC2, 且 TC1=! TC2。
8、 如权利要求 7所述的方法， 其特征在于， 所述分配信息包括： 所述相 同的 CS值、 以及所述不同的 TC值中的一个 TC值； 以及
根据所述分配信息确定为各射频发射模块分配的 TC值和 CS值， 具体包 括：
根据所述分配信息中的 CS值确定为各射频发射模块分配所述相同的 CS 值；
确定为所述射频发射模块中的一个射频发射模块分配所述分配信息中的 TC值； 为另一个射频发射模块分配所述分配信息中的 TC值的取反值。
9、 如权利要求 2-5、 7中任一项所述的方法， 其特征在于， 所述分配信息 包括： 所有的为各射频发射模块分配的 TC值和 CS值。
10、 一种上行探测参考信号发送方法， 其特征在于， 包括： 检测发送周期是否到达；
在发送周期到达时， 控制各射频发射模块根据为各自分配的 TC值和 CS 值发送 SRS信号；其中为任意两个射频发射模块分配的 TC值和 CS值不完全 相同。
11、 如权利要求 10所述的方法， 其特征在于， 在所述控制各射频发射模 块根据为各自分配的 TC值和 CS值发送 SRS信号之前， 还包括：
接收基站为各射频发射模块分配的 TC值和 CS值的分配信息；
根据所述分配信息确定基站为各射频发射模块分配的 TC值和 CS值。
12、 如权利要求 11所述的方法， 其特征在于， 在所述接收基站为各射频 发射模块分配的 TC值和 CS值的分配信息之前， 还包括：
向基站上报射频发射模块数目； 以及
所述基站为各射频发射模块分配的 TC值和 CS值是根据所述射频发射模 块数目确定的。
13、 如权利要求 11所述的方法， 其特征在于， 所述为各射频发射模块分 配的 TC值和 CS值具体包括：
各射频发射模块的 TC值相同、 CS值不同； 或者
各射频发射模块的 CS值相同、 TC值不同； 或者
各射频发射模块的 CS值不相同、 且各射频发射模块的 TC值不相同。
14、 如权利要求 13所述的方法， 其特征在于， 所述分配信息包括： 为各 射频发射模块分配的相同 TC值、 不同的 CS值中的一个 CS值； 以及
所述根据接收的分配信息确定为各射频发射模块分配的 TC值和 CS值， 具体包括：
根据所述分配信息中的 TC值确定为各射频发射模块分配所述相同的 TC 值；
根据所述分配信息中的 CS值确定所述不同的 CS值；
确定为各射频发射模块分别配置确定的各不同的 CS值。
15、 如权利要求 13所述的方法， 其特征在于， 所述分配信息具体包括： 为各射频发射模块分配的相同的 CS值、 以及所述不同的 TC值中的一个 TC 值； 以及
所述根据所述分配信息确定为各射频发射模块分配的 TC值和 CS值， 具 体包括：
根据所述分配信息中的 CS值确定为所述各射频发射模块分配该相同的 CS值；
根据所述分配信息中的 TC值确定所述不同的 TC值；
确定为各射频发射模块分别配置所述确定的各不同的 TC值。
16、 如权利要求 11-13中任一项所述的方法， 其特征在于， 所述分配信息 包括： 所有的为各射频发射模块配置的 TC值和 CS值。
17、 一种基站， 其特征在于， 包括：
信号接收模块， 用于接收移动终端的各射频发射模块在发送周期到达时， 分别才艮据为各自分配的 TC值和 CS值发送的 SRS信号，其中为任意两个射频 发射模块分配的 TC值和 CS值不完全相同；
信号确定模块， 用于根据所述分别为各射频发射模块分配的 TC值和 CS 值， 确定出所述信号接收模块接收的每一个 SRS信号对应的射频发射模块。
18、 如权利要求 17所述的基站， 其特征在于， 还包括：
分配模块， 用于为所述移动终端的各射频发射模块分配 TC值和 CS值； 分配信息发送模块， 用于根据所述分配模块的分配结果向所述移动终端 发送此次分配的分配信息。
19、 如权利要求 18所述的基站， 其特征在于， 还包括：
数目获得模块， 用于获得移动终端上报的射频发射模块数目； 以及 所述分配模块还用于根据所述数目获得模块获得的射频发射模块数目为 所述移动终端的各射频发射模块分配 TC值和 CS值。
20、 一种移动终端， 包括： 用于发送 SRS信号的多个发射天线， 其特征 在于， 还包括：
周期检测模块， 用于检测发送周期是否到达； 信号发送模块， 用于在所述周期检测模块检测到发送周期到达时， 控制 各射频发射模块根据为各自分配的 TC值和 CS值发送 SRS信号；其中为任意 两个射频发射模块分配的 TC值和 CS值不完全相同。
21、 如权利要求 20所述的移动终端， 其特征在于， 还包括：
分配信息接收模块， 用于接收基站为各射频发射模块分配的 TC值和 CS 值的分配信息；
配置模块， 用于根据所述分配信息接收模块接收的分配信息确定基站为 各射频发射模块分配的 TC值和 CS值，并根据确定结果配置各射频发射模块。
22、 如权利要求 21所述的移动终端， 其特征在于， 还包括：
数目上报模块， 用于向所述基站上报射频发射模块的数目。
PCT/CN2009/000683 2008-06-20 2009-06-19 上行探测参考信号发送、接收方法以及基站和移动终端 WO2009152696A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/999,800 US8755812B2 (en) 2008-06-20 2009-06-19 Method for transmitting and receiving uplink sounding reference signal, base station and mobile terminal
KR1020117001177A KR101301231B1 (ko) 2008-06-20 2009-06-19 사운딩 레퍼런스 신호의 송수신 벙법 및 기지국과 이동 단말
EP09765336.4A EP2293461B1 (en) 2008-06-20 2009-06-19 Method for transmitting and receiving uplink sounding reference signal, base station and mobile terminal
JP2011513849A JP2011525079A (ja) 2008-06-20 2009-06-19 サウンディング・レファレンス信号の送受信方法、基地局及び移動端末

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810115312.1 2008-06-20
CN2008101153121A CN101610607B (zh) 2008-06-20 2008-06-20 上行探测参考信号发送、接收方法以及基站和移动终端

Publications (1)

Publication Number Publication Date
WO2009152696A1 true WO2009152696A1 (zh) 2009-12-23

Family

ID=41433671

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/000683 WO2009152696A1 (zh) 2008-06-20 2009-06-19 上行探测参考信号发送、接收方法以及基站和移动终端

Country Status (6)

Country Link
US (1) US8755812B2 (zh)
EP (1) EP2293461B1 (zh)
JP (1) JP2011525079A (zh)
KR (1) KR101301231B1 (zh)
CN (1) CN101610607B (zh)
WO (1) WO2009152696A1 (zh)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011166699A (ja) * 2010-02-15 2011-08-25 Ntt Docomo Inc 無線基地局装置、移動端末装置及び無線通信方法
JP2012506193A (ja) * 2008-10-15 2012-03-08 エルジー エレクトロニクス インコーポレイティド 複数個のアンテナを用いたサウンディング基準信号シーケンス伝送方法
WO2012099301A1 (en) * 2011-01-19 2012-07-26 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
JP2013516817A (ja) * 2010-01-08 2013-05-13 聯發科技股▲ふん▼有限公司 無線通信システムにおけるアップリンクチャネルサウンディングのマルチアンテナリソース割り当て方法
JP2013531405A (ja) * 2010-04-29 2013-08-01 富士通株式会社 サウンディング基準信号及びそのパラメータの送信方法、基地局並びに移動端末
CN103905104A (zh) * 2012-12-28 2014-07-02 中兴通讯股份有限公司 一种根据探测参考信号的多天线发送方法及终端及基站
CN110168954A (zh) * 2017-01-09 2019-08-23 高通股份有限公司 在新无线电中发送经复用的探测参考信号端口

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8314736B2 (en) 2008-03-31 2012-11-20 Golba Llc Determining the position of a mobile device using the characteristics of received signals and a reference database
US9829560B2 (en) 2008-03-31 2017-11-28 Golba Llc Determining the position of a mobile device using the characteristics of received signals and a reference database
US7800541B2 (en) 2008-03-31 2010-09-21 Golba Llc Methods and systems for determining the location of an electronic device
US8639270B2 (en) 2010-08-06 2014-01-28 Golba Llc Method and system for device positioning utilizing distributed transceivers with array processing
CN102014099B (zh) * 2009-11-02 2013-04-24 电信科学技术研究院 一种下行导频的传输方法、装置及系统
PL3142284T3 (pl) * 2010-01-20 2020-11-16 Telefonaktiebolaget Lm Ericsson (Publ) Sposób mapowania złącza antenowego i urządzenie do sygnałów referencyjnych demodulacji
KR101498079B1 (ko) * 2010-03-04 2015-03-03 엘지전자 주식회사 분산 안테나 시스템에서의 신호 송수신 장치
CN102223167B (zh) 2010-04-16 2015-11-25 华为技术有限公司 多天线系统中的探测参考信号发送方法及装置
CN101888624B (zh) * 2010-06-11 2016-03-30 中兴通讯股份有限公司 发射天线选择的配置方法及装置
CN101867403B (zh) * 2010-06-13 2016-06-29 中兴通讯股份有限公司 一种测量参考信号的多天线发送方法、终端
KR101227520B1 (ko) 2010-07-09 2013-01-31 엘지전자 주식회사 다중 안테나 무선 통신 시스템에서 상향링크 참조 신호 송신 방법 및 이를 위한 장치
CN102340379B (zh) * 2010-07-15 2015-04-22 中国移动通信集团公司 一种csi-rs的发送方法、检测方法及其装置
CN102404029B (zh) * 2010-09-13 2014-08-06 电信科学技术研究院 周期探测参考信号的传输指示及传输方法、设备
CN102076026B (zh) * 2011-01-06 2013-06-05 大唐移动通信设备有限公司 探测参考信号发送方法、装置及终端
CN102075274B (zh) * 2011-01-31 2016-09-28 中兴通讯股份有限公司 一种测量参考信号的多天线参数的配置方法及装置
JP5697483B2 (ja) * 2011-02-23 2015-04-08 京セラ株式会社 無線通信システム、無線基地局及び通信制御方法
CN102185642B (zh) * 2011-05-12 2014-10-15 电信科学技术研究院 发送配置信息和选择发射天线的方法、系统及设备
JP5620884B2 (ja) * 2011-05-27 2014-11-05 京セラ株式会社 基地局及び通信方法
CN102291837B (zh) * 2011-08-12 2013-11-06 电信科学技术研究院 一种周期性srs的处理方法和设备
US9780928B2 (en) 2011-10-17 2017-10-03 Golba Llc Method and system for providing diversity in a network that utilizes distributed transceivers and array processing
CN103096449B (zh) * 2011-11-04 2018-06-19 中兴通讯股份有限公司 一种探测参考信号的功率控制方法、系统及装置
CN103138817B (zh) * 2011-12-05 2016-04-06 上海贝尔股份有限公司 一种用于选择上行链路传输天线的方法与设备
CN103312484B (zh) * 2012-03-16 2017-12-29 中兴通讯股份有限公司 探测参考信号发射功率的控制方法、用户设备和基站
US9253587B2 (en) 2012-08-08 2016-02-02 Golba Llc Method and system for intelligently controlling propagation environments in distributed transceiver communications
JP6376757B2 (ja) * 2014-01-14 2018-08-22 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
WO2015143627A1 (zh) 2014-03-25 2015-10-01 华为技术有限公司 信道状态信息获取方法及设备
EP3048853B1 (en) * 2015-01-26 2021-05-26 ASUSTek Computer Inc. Method and apparatus for handling transmission in a wireless communication system
WO2016163847A1 (ko) * 2015-04-10 2016-10-13 엘지전자 주식회사 무선 통신 시스템에서 사운딩 참조 신호를 송신 또는 수신하는 방법 및 이를 위한 장치
CN106714100A (zh) * 2015-11-18 2017-05-24 中兴通讯股份有限公司 终端的定位方法及装置
CN107231694A (zh) * 2016-03-25 2017-10-03 北京信威通信技术股份有限公司 下行传输的调整方法及系统
CN113965302A (zh) 2016-04-08 2022-01-21 华为技术有限公司 参考信号的传输方法、设备和系统
WO2018127998A1 (ja) * 2017-01-06 2018-07-12 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 端末、基地局及び通信方法
US10321332B2 (en) 2017-05-30 2019-06-11 Movandi Corporation Non-line-of-sight (NLOS) coverage for millimeter wave communication
CN108989006A (zh) * 2017-06-05 2018-12-11 中兴通讯股份有限公司 空分多址的用户分组方法、装置、基站及存储介质
US10484078B2 (en) 2017-07-11 2019-11-19 Movandi Corporation Reconfigurable and modular active repeater device
CN113473617A (zh) 2017-08-11 2021-10-01 华为技术有限公司 一种上行信号的传输方法及设备
US10348371B2 (en) 2017-12-07 2019-07-09 Movandi Corporation Optimized multi-beam antenna array network with an extended radio frequency range
US10090887B1 (en) 2017-12-08 2018-10-02 Movandi Corporation Controlled power transmission in radio frequency (RF) device network
US10862559B2 (en) 2017-12-08 2020-12-08 Movandi Corporation Signal cancellation in radio frequency (RF) device network
US11088457B2 (en) 2018-02-26 2021-08-10 Silicon Valley Bank Waveguide antenna element based beam forming phased array antenna system for millimeter wave communication
US10637159B2 (en) 2018-02-26 2020-04-28 Movandi Corporation Waveguide antenna element-based beam forming phased array antenna system for millimeter wave communication
KR102224410B1 (ko) * 2018-10-25 2021-03-08 엘지전자 주식회사 무선 통신 시스템에서 사이드링크 harq 피드백과 관련된 정보에 기반하여 자원선택 윈도우를 결정하는 방법 및 장치
CN110224706B (zh) * 2019-06-14 2021-04-02 Oppo广东移动通信有限公司 射频电路及电子设备
US20210105747A1 (en) * 2019-10-03 2021-04-08 Qualcomm Incorporated Dynamic indication of physical downlink control channel monitoring location

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101192875A (zh) * 2006-11-27 2008-06-04 上海无线通信研究中心 用于通用陆地无线接入系统的上行正交参考信号分配方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4892607B2 (ja) * 2006-04-12 2012-03-07 エルジー エレクトロニクス インコーポレイティド ＭＩＭＯシステムにおいて基準信号割当方法｛ＭｅｔｈｏｄｆｏｒａｌｌｏｃａｔｉｎｇｒｅｆｅｒｅｎｃｅｓｉｇｎａｌｓｉｎＭＩＭＯｓｙｓｔｅｍ｝
KR101355313B1 (ko) * 2006-10-12 2014-01-23 엘지전자 주식회사 Ｍｉｍｏ 시스템에서의 참조신호 배치 방법
WO2010036053A2 (en) * 2008-09-26 2010-04-01 Samsung Electronics Co., Ltd. Apparatus and method for supporting transmission of sounding reference signals from multiple antennas

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101192875A (zh) * 2006-11-27 2008-06-04 上海无线通信研究中心 用于通用陆地无线接入系统的上行正交参考信号分配方法

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"3GPP TSG RAN WG1 #49bis Rl-072988", 29 June 2007, XP002494147 *
"3GPP TSG RAN WG1 Meeting #49 Rl-072095", 11 May 2007, XP050105849 *
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation (Release 8)", 3GPP TS 36.211 V8.3.0, May 2008 (2008-05-01), XP002533613 *
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (Release 8)", 3GPP TS 36.213 V8.2.0, March 2008 (2008-03-01), XP002519043 *
See also references of EP2293461A4 *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012506193A (ja) * 2008-10-15 2012-03-08 エルジー エレクトロニクス インコーポレイティド 複数個のアンテナを用いたサウンディング基準信号シーケンス伝送方法
US8792584B2 (en) 2008-10-15 2014-07-29 Lg Electronics Inc. Method for transmitting sounding reference signal sequence using plural antennas
JP2013516817A (ja) * 2010-01-08 2013-05-13 聯發科技股▲ふん▼有限公司 無線通信システムにおけるアップリンクチャネルサウンディングのマルチアンテナリソース割り当て方法
JP2011166699A (ja) * 2010-02-15 2011-08-25 Ntt Docomo Inc 無線基地局装置、移動端末装置及び無線通信方法
JP2013531405A (ja) * 2010-04-29 2013-08-01 富士通株式会社 サウンディング基準信号及びそのパラメータの送信方法、基地局並びに移動端末
US9973250B2 (en) 2011-01-19 2018-05-15 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
US8619940B2 (en) 2011-01-19 2013-12-31 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
US9425877B2 (en) 2011-01-19 2016-08-23 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
US20160344462A1 (en) * 2011-01-19 2016-11-24 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
US9143298B2 (en) 2011-01-19 2015-09-22 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
WO2012099301A1 (en) * 2011-01-19 2012-07-26 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
US8989302B2 (en) 2011-01-19 2015-03-24 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
US9025696B2 (en) 2011-01-19 2015-05-05 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
EP3349369A1 (en) * 2011-01-19 2018-07-18 LG Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
US8619941B2 (en) 2011-01-19 2013-12-31 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
EP2625796A4 (en) * 2011-01-19 2014-04-23 Lg Electronics Inc METHOD FOR TRANSMITTING SOUND REFERENCE SIGNALS IN A WIRELESS MULTI-ANTENNA COMMUNICATION SYSTEM AND DEVICE THEREFOR
US8428166B2 (en) 2011-01-19 2013-04-23 Lg Electronics Inc. Method for transmitting sounding reference signal in multiple antenna wireless communication system and apparatus therefor
CN103905104B (zh) * 2012-12-28 2017-12-19 中兴通讯股份有限公司 一种根据探测参考信号的多天线发送方法及终端及基站
US10038481B2 (en) 2012-12-28 2018-07-31 Xi'an Zhongxing New Software Co., Ltd. Multi-antenna transmission method, terminal and base station
CN103905104A (zh) * 2012-12-28 2014-07-02 中兴通讯股份有限公司 一种根据探测参考信号的多天线发送方法及终端及基站
US11843558B2 (en) 2017-01-09 2023-12-12 Qualcomm Incorporated Transmitting multiplexed sounding reference signal ports in new radio
CN110168954A (zh) * 2017-01-09 2019-08-23 高通股份有限公司 在新无线电中发送经复用的探测参考信号端口
CN110168954B (zh) * 2017-01-09 2022-08-16 高通股份有限公司 在新无线电中发送经复用的探测参考信号端口

Also Published As

Publication number Publication date
US8755812B2 (en) 2014-06-17
EP2293461A1 (en) 2011-03-09
KR20110030601A (ko) 2011-03-23
JP2011525079A (ja) 2011-09-08
CN101610607A (zh) 2009-12-23
KR101301231B1 (ko) 2013-08-29
US20110105167A1 (en) 2011-05-05
CN101610607B (zh) 2012-08-08
EP2293461A4 (en) 2013-05-22
EP2293461B1 (en) 2015-08-05

Similar Documents

Publication Publication Date Title
WO2009152696A1 (zh) 上行探测参考信号发送、接收方法以及基站和移动终端
US20200252917A1 (en) Methods and Systems for Resource Configuration of Wireless Communication Systems
JP7469843B2 (ja) 無線通信システムにおいて制御情報をマッピングするための方法及び装置
CN110431905B (zh) 在无线通信系统中在终端和基站之间发送和接收调度请求的方法以及支持该方法的装置
CN107736064B (zh) 用于在终端之间发送信号的方法及其设备
JP5452727B2 (ja) サウンディング基準信号構成
JP5873191B2 (ja) 無線通信方法及び通信装置
US9420471B2 (en) Base station, mobile station, radio communication system, and communication control method
KR102319700B1 (ko) 무선 통신 시스템에서 선택적 채널 피드백 방법 및 장치
WO2012031565A1 (zh) 一种测量干扰的方法、系统和设备
WO2021161223A1 (en) Non-codebook based multi-trp pusch reliability with multiple associated nzp csi-rss
KR20130122572A (ko) 단말 대 단말 통신을 위한 송수신 방법
WO2013178095A1 (zh) 探测参考信号的传输方法、装置及系统和用户设备
EP3909210A1 (en) Positioning reference signaling
CA2695525A1 (en) Base station
WO2021205417A1 (en) Receiving time overlapping downlink reference signals and channels
CN112806084A (zh) 大气信道驱动的干扰处理
CN114287117A (zh) Harq码本结构
US10326570B2 (en) Frequency selective scheduling
CN116667985A (zh) 用于无线通信的控制信道

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09765336

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2011513849

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: MX/A/2010/014298

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2009765336

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20117001177

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 418/CHENP/2011

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 12999800

Country of ref document: US