WO2018094672A1 - 一种信息传输的方法、基站及终端 - Google Patents

一种信息传输的方法、基站及终端 Download PDF

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Publication number
WO2018094672A1
WO2018094672A1 PCT/CN2016/107166 CN2016107166W WO2018094672A1 WO 2018094672 A1 WO2018094672 A1 WO 2018094672A1 CN 2016107166 W CN2016107166 W CN 2016107166W WO 2018094672 A1 WO2018094672 A1 WO 2018094672A1
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WIPO (PCT)
Prior art keywords
field
terminal
base station
power
data signal
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Ceased
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PCT/CN2016/107166
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English (en)
French (fr)
Inventor
郭志恒
谢信乾
程型清
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2016/107166 priority Critical patent/WO2018094672A1/zh
Priority to EP16922124.9A priority patent/EP3537780A4/en
Priority to CN201680091024.XA priority patent/CN109983807A/zh
Priority to KR1020197017455A priority patent/KR20190084307A/ko
Publication of WO2018094672A1 publication Critical patent/WO2018094672A1/zh
Priority to US16/420,406 priority patent/US20190280904A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • 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
    • H04L5/0042—Intra-user or intra-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • 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
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a base station, and a terminal for information transmission.
  • the downlink multiple access method usually adopts Orthogonal Frequency Division Multiplexing Access (OFDMA). )the way.
  • OFDMA Orthogonal Frequency Division Multiplexing Access
  • the main feature of the orthogonal frequency division multiple access method is that different users use different time-frequency resources to ensure that the received signals between different users are free from interference, thereby achieving simple reception on the user side.
  • the utilization of time-frequency resources is low, resulting in a limitation of the overall transmission rate of the communication system.
  • NOMA Non-orthogonal multiplexing access
  • NOMA increases the overall transmission rate of the system.
  • the Gray coding characteristic of the existing modulation (or constellation) method is utilized, so that the receiver of the terminal can adopt a simple receiving algorithm. , which further improves system performance.
  • Some downlink transmission schemes including NOMA and SOMA are collectively referred to as Multi-user Superposing Transmission (MUST).
  • MUST communication under LTE or LTE-A systems two or more users are allowed to pair and transmit information on the same time-frequency resource. For the case where two users are paired with each other, two users can use different power transmissions or different transmission layers. Generally, users with higher downlink transmission power are called far users, and users with lower downlink transmission power are required. Called near users.
  • the base station notifies the user whether there is MUST interference on the spatial layer adopted by the terminal and the power ratio of the far-user and near-user signals in the presence of MUST interference.
  • the terminal of the near user cannot be informed of its accurate power.
  • a transmission mode 4 with a rank of 1 in LTE can be recorded as TM4 Rank1; and when a remote user adopts two layers of air separation
  • the transmission mode 4 of rank 2 in LTE is recorded as TM4 Rank2
  • the spatial layer of the near user is paired with one of the two spatial layers of the far user, and P is the far user and
  • the total power of the near user a is the share of the near user power on the paired space layer, and the power of the near user is P*a/2.
  • the base station When the near user is TM4 Rank1 and the far user is TM4 Rank1, the power of the near user is P*a.
  • the base station simultaneously transmits the superposed data signal to the paired far terminal (the terminal of the far user) and the near terminal (the terminal of the near user), and for the near terminal, it receives the
  • the data signal transmitted by the base station has information of the far terminal, and the information may interfere with the information of the near terminal demodulating itself, so the near terminal will treat the information of the far terminal in the received data signal as interference, thereby making the space of the far terminal
  • the number of layers is considered to be the number of interference spatial layers. It can be seen that in the above two cases, the power values of the near users are different, so that the near users cannot know the accurate power, which will affect the reliability of data signal transmission.
  • Embodiments of the present invention provide a method, a base station, and a terminal for information transmission to improve reliability of data signal transmission.
  • a first aspect of the embodiments of the present invention provides a method for information transmission, which is used in a multi-user overlay transmission (MUST) system, and may include:
  • the base station sends an indication message to the terminal, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates the number of interference space layers, and the interference space layer and the base station Corresponding to the data signal transmitted by the terminal;
  • the base station transmits the data signal to the terminal.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the transport block corresponding to the first field has been activated, the first field is used to indicate that the base station is in the corresponding space layer to the terminal
  • the MUST interference presence and power ratio of the transmitted data signal when the transport block corresponding to the first field is not activated.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • a second aspect of the embodiments of the present invention provides a method for information transmission, which may include:
  • an indication message sent by the base station where the indication message indicates that the base station transmits the indication message to the terminal Transmitting power information of the data signal, or the indication message indicates a number of interference space layers, where the interference space layer corresponds to a data signal transmitted by the base station to the terminal;
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to When the transport block has been activated, the first field is used to indicate the MUST interference presence and power ratio of the base station transmitting the data signal to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist
  • the second field indicates that the power when the base station transmits the data signal to the terminal has no offset or the power offset is 0 or the second field is an invalid field
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • a third aspect of the embodiments of the present invention provides a base station, which may include:
  • a first sending unit configured to send an indication message to the terminal, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates a number of interference space layers, and the interference space layer is Corresponding to the data signal transmitted by the base station to the terminal;
  • a second sending unit configured to send the data signal to the terminal.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to When the transport block has been activated, the first field is used to indicate the MUST interference presence and power ratio of the base station transmitting the data signal to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where a first field is used to indicate a MUST interference presence condition and a power ratio on the spatial layer, where the second field is used to indicate that the base station transmits power information of the information to the terminal; or the second field And configured to indicate a MUST interference presence condition and a power ratio on the spatial layer, where the first field is used to indicate that the base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • a fourth aspect of the embodiments of the present invention provides a base station, which may include:
  • the processor is configured to control the transceiver to send and receive information
  • the transceiver is configured to send an indication message to the terminal, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates a number of interference space layers, the interference space layer number and the Corresponding to a data signal transmitted by the base station to the terminal; and transmitting the data signal to the terminal.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the transport block corresponding to the first field has been activated, the first field is used to indicate that the base station is in the corresponding space layer to the terminal
  • the MUST interference presence and power ratio of the transmitted data signal when the transport block corresponding to the first field is not activated.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • a fifth aspect of the embodiments of the present invention provides a computer program product, which can include a computer readable medium, the computer readable medium comprising a set of program code for performing a first party as in the embodiment of the present invention The method described in any of the implementations.
  • a sixth aspect of the embodiments of the present invention provides a terminal, which may include:
  • the first receiving unit is configured to receive an indication message sent by the base station, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates the number of interference space layers, and the interference space layer Corresponding to a data signal transmitted by the base station to the terminal;
  • a calculating unit configured to calculate, according to the indication message, a power of receiving the data signal
  • a second receiving unit configured to receive, according to the calculated power, the data signal sent by the base station.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to When the transport block has been activated, the first field is used to indicate the MUST interference presence and power ratio of the base station transmitting the data signal to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • a seventh aspect of the embodiments of the present invention provides a terminal, which may include:
  • the transceiver is configured to receive an indication message sent by a base station, where the indication message indicates that the base station transmits power information of a data signal to the terminal, or the indication message indicates a number of interference space layers, and the interference space layer and the location Corresponding to a data signal transmitted by the base station to the terminal;
  • the processor is configured to calculate, according to the indication message, a power of receiving the data signal
  • the transceiver is further configured to receive the data signal sent by the base station according to the calculated power.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to When the transport block has been activated, the first field is used to indicate the MUST interference presence and power ratio of the base station transmitting the data signal to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • the eighth aspect of the embodiments of the present invention provides a computer program product, which may include a computer readable medium, the computer readable medium comprising a set of program code for performing any implementation according to the second aspect of the embodiments of the present invention. The method described.
  • FIG. 1 is a schematic structural diagram of a MUST system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for information transmission according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart diagram of another method for information transmission according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another terminal according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a MUST system according to an embodiment of the present invention. It should be noted that the MUST system is merely an example, and the scope of application of the present invention is not limited thereto.
  • the MUST system shown in Figure 1 includes a base station and two terminals.
  • the base station may send a signaling message and a downlink data signal to the terminal, which may include, but is not limited to, an evolved Node B (eNB), a Node B (NB), and a base station controller (Base). Station Controller, BSC), Base Transceiver Station (BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB).
  • eNB evolved Node B
  • NB Node B
  • Base Base Transceiver Station
  • HNB home base station
  • UE User equipment
  • UE also called a terminal
  • a smart phone such as an Android phone, an iOS phone, or a Windows Phone
  • MIDs mobile Internet devices
  • Terminal 1 and terminal 2 in FIG. 1 can perform data transmission with a base station using a multi-user overlay transmission (MUST) method.
  • the two terminals can use different power transmissions or different transmission layers.
  • users with lower downlink transmission power are called remote users, and users with lower downlink transmission power are called near users.
  • terminal 2 can be a far user, and terminal 1 can be a near user. Due to the different number of transmission layers used by the user, this will result in the near-user terminal not being able to accurately know its power, thereby affecting the reliability of data signal transmission. Therefore, there is a need to provide a method to prompt the terminal to know the exact power.
  • FIG. 2 a schematic flowchart of an embodiment of a method for information transmission is shown.
  • the method is used in an MUS system, and specifically includes the following steps:
  • the base station sends an indication message to the terminal.
  • the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates the number of interference space layers, the interference space layer number and the data signal transmitted by the base station to the terminal. correspond.
  • the base station sends the data signal to the terminal.
  • the power information includes a power offset, or includes whether a power offset and a power offset are performed, where the power offset is 0 or is a preset value, and the interference signal is The number of spatial layers corresponds to the power offset.
  • the preset value may be preset by the system, for example, may be set to -10 lg2, or may also be based on The station informs the terminal in advance.
  • the power information includes a power offset
  • a specific value such as 0 or -lg2 may be indicated.
  • the power information includes whether to perform power offset and power offset, it may indicate whether an offset is performed, and indicate a specific offset value such as -10lg2 or the like.
  • the base station may also notify the terminal of the specific power offset in advance, and then directly indicate whether to perform the offset.
  • the terminal may calculate the obtained power value based on the power offset of 0, and then reduce the value by 10 lg 2 dB, and take the value as the value of its own power.
  • the indication message may also be used to indicate that the user terminal interferes with the signal in the MUST transmission mode or interferes with the user's spatial layer number, and the interference layer number is uniformly described in the following content.
  • the user is a single layer transmission and the indication message indicates that the number of interference layers is 1 layer, the user does not perform power adjustment when calculating power; when the user transmits a single layer and the indication message indicates an interference layer
  • the number is 2 layers, the user performs power adjustment when calculating power, and the power adjustment amount may correspond to a preset value such as -10lg2.
  • the base station may perform corresponding configuration on the indication message.
  • the composition of the indication message may be in the following manners:
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate that the base station is to the terminal.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the transport block corresponding to the first field has been When activated, the first field is used to indicate the presence of the MUST interference and the power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal;
  • the A field is used to indicate the presence of MUST interference and the power ratio on the corresponding spatial layer.
  • the indication message is a 1-bit field, and the field includes two states, and each state indication meaning is as shown in Table 1.
  • the value of the above-mentioned X may be 10 lg 2 or other values, and the specific value may be a preset parameter of the system, or may be a parameter pre-configured by the base station to the user terminal.
  • the indication message is a 2-bit field, and the field includes two states, and the indication meanings of each state are as shown in Table 2 or Table 3.
  • the indication message is a 2-bit field
  • the indication meaning is as shown in Table 2 or Table 3; when the field is When the user uses two spatial layers or double codeword transmission, it is used to indicate the interference presence and power ratio of the user on the corresponding spatial layer.
  • the second bit of the field containing 2 bits is used to indicate power information, and the first bit is reserved; similarly, the field can also be used to include the first bit of 2 bits. Used to indicate power information, the 2nd bit is reserved.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, and the second field is used to indicate the base station Transmitting, to the terminal, power information of the information; or, the second field is used to indicate a MUST interference presence and a power ratio on the spatial layer, where the first field is used to indicate that the base station is to the The terminal transmits the power information of the data signal.
  • the indication message comprising a first field and a second field when the terminal transmits data signals using only one spatial layer.
  • the first field and the second field both contain 2 bits, and the indication contents of the first field and the second field are as described in Table 5.
  • the first field can be used as in the prior art. The MUST interferes with the presence and power ratio on the spatial layer, and uses the second field to indicate that the base station transmits power information of the data signal to the terminal, or the first field and the second field are interchanged.
  • the status indicated by the second field is invalid, that is, the terminal does not interpret the second field, or the second field indicates
  • the state is that the downlink power offset is 0 dB (or no power offset), that is, the second field is fixed indicating state 0.
  • the indication contents of the first field and the second field may also be as described in Table 6.
  • the second field indicates unpaired transmission, the status indicated by the first field is invalid, or the status indicated by the first field is the downlink power offset is 0dB (or no power offset).
  • the number of bits included in the first field and the second field is not limited to 1 bit or 2 bits, and the correspondence between the values of the first field and the second field and the status corresponding to the indicated downlink power information is not It is limited to the correspondence shown in the above table, and the correspondence is not limited to the one-to-one relationship, and may be a one-to-many, many-to-one or many-to-many relationship.
  • the state indicated by the first field or the second field includes at least one of indicating that the interference space layer is 1 or the interference space layer is 2 .
  • the power offset information may be replaced with the interference space layer information as described in Table 1, Table 2, Table 3, Table 4, Table 5, and Table 6.
  • the description in the table “power offset 0dB (no power offset)" can be replaced by "interference space layer is 1", “power offset -10lg2dB” is replaced with “interference space layer is 2" .
  • the correspondence between the values of the first field or the second field and the state corresponding to the indicated downlink power offset information is not limited to the correspondence relationship shown in the tables, and the correspondence is not limited to the one-to-one relationship. It can be a one-to-many, many-to-one or many-to-many relationship.
  • the base station After the base station configures the indication message, it can send it to the terminal, so that the terminal calculates the power of the received data signal according to the indication message.
  • the data signal is then transmitted by the base station to the terminal for high quality data transmission.
  • the power information indicated in the above indication message may be a ⁇ power-offset defined in the prior art, or may be a newly defined parameter.
  • the embodiment of the invention is not limited at all.
  • the base station sends the indication message to the terminal, and carries the power layer or the spatial layer number of the interference signal when the base station transmits the data signal to the terminal, so that the terminal can calculate and obtain the received data according to the information.
  • the exact power of the signal can improve the reliability of the data signal transmission.
  • the method is used in the MUST system, and specifically includes the following steps:
  • the terminal receives an indication message sent by the base station.
  • the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates the number of interference space layers, the interference space layer number and the data signal transmitted by the base station to the terminal. correspond.
  • the power information includes a power offset, or includes whether a power offset and a power offset are performed, where the power offset is 0 or a preset value, and the spatial layer of the interference signal is The power offset corresponds to.
  • the preset value may be preset by the system, for example, may be set to -10 lg2, or may be notified to the terminal in advance by the base station.
  • the power information includes a power offset
  • a specific value such as 0 or -lg2 may be indicated.
  • the power information includes whether to perform power offset and power offset, it may indicate whether an offset is performed, and indicate a specific offset value such as -10lg2 or the like.
  • the base station may also notify the terminal of the specific power offset in advance, and then directly indicate whether to perform the offset.
  • the terminal may calculate the obtained power value based on the power offset of 0, and then reduce the value by 10 lg 2 dB, and take the value as the value of its own power.
  • the indication message may also be used to indicate that the user terminal interferes with the signal in the MUST transmission mode or interferes with the user's spatial layer number, and the interference layer number is uniformly described in the following content.
  • the user is a single layer transmission and the indication message indicates that the number of interference layers is 1 layer, the user does not perform power adjustment when calculating power; when the user transmits a single layer and the indication message indicates an interference layer
  • the number is 2 layers, the user performs power adjustment when calculating power, and the power adjustment amount may correspond to a preset value such as -10lg2.
  • the base station may perform corresponding configuration on the indication message.
  • the composition of the indication message may be in the following manners:
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate that the base station is to the terminal.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the transport block corresponding to the first field has been When activated, the first field is used to indicate the presence of the MUST interference and the power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal;
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message is a 1-bit field, and the field includes two states, and each state indication meaning is as shown in Table 1.
  • the value of the above-mentioned X may be 10 lg 2 or other values, and the specific value may be a preset parameter of the system, or may be a parameter pre-configured by the base station to the user terminal.
  • the indication message is a 2-bit field, and the field includes two states, and the indication meanings of each state are as shown in Table 2 or Table 3.
  • the indication message is a 2-bit field
  • the indication meaning is as shown in Table 2 or Table 3; when the field is When the user uses two spatial layers or double codeword transmission, it is used to indicate the interference presence and power ratio of the user on the corresponding spatial layer.
  • the second bit of the field containing 2 bits is used to indicate power information, and the first bit is reserved; similarly, the field can also be used to include the first bit of 2 bits. Used to indicate power information, the 2nd bit is reserved.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, and the second field is used to indicate the base station Transmitting, to the terminal, power information of the information; or, the second field is used to indicate a MUST interference presence and a power ratio on the spatial layer, where the first field is used to indicate that the base station is to the The terminal transmits the power information of the data signal.
  • the indication message comprising a first field and a second field when the terminal transmits data signals using only one spatial layer.
  • the first field and the second field both contain 2 bits, and the indication contents of the first field and the second field are as described in Table 5.
  • the first field can be used as in the prior art. The MUST interferes with the presence and power ratio on the spatial layer, and uses the second field to indicate that the base station transmits power information of the data signal to the terminal, or the first field and the second field are interchanged.
  • the status indicated by the second field is invalid, that is, the terminal does not interpret the second field, or the second field indicates
  • the state is that the downlink power offset is 0 dB (or no power offset), that is, the second field is fixed indicating state 0.
  • the indication contents of the first field and the second field may also be as described in Table 6.
  • the second field indicates unpaired transmission, the status indicated by the first field is invalid, or the status indicated by the first field is the downlink power offset is 0dB (or no power offset).
  • the number of bits included in the first field and the second field is not limited to 1 bit or 2 bits, and the correspondence between the values of the first field and the second field and the status corresponding to the indicated downlink power information is not It is limited to the correspondence shown in the above table, and the correspondence is not limited to the one-to-one relationship, and may be a one-to-many, many-to-one or many-to-many relationship.
  • the state indicated by the first field or the second field includes at least one of indicating that the interference space layer is 1 or the interference space layer is 2 .
  • the power offset information may be replaced with the interference space layer information as described in Table 1, Table 2, Table 3, Table 4, Table 5, and Table 6.
  • the description in the table “power offset 0dB (no power offset)" can be replaced by "interference space layer is 1", “power offset -10lg2dB” is replaced with “interference space layer is 2" .
  • the correspondence between the values of the first field or the second field and the state corresponding to the indicated downlink power offset information is not limited to the correspondence relationship shown in the tables, and the correspondence is not limited to the one-to-one relationship. It can be a one-to-many, many-to-one or many-to-many relationship.
  • the base station After the base station configures the indication message, it can send it to the terminal, so that the terminal calculates the power of the received data signal according to the indication message.
  • the data signal is then transmitted by the base station to the terminal for high quality data transmission.
  • the power information indicated in the above indication message may be a ⁇ power-offset defined in the prior art, or may be a newly defined parameter.
  • the embodiment of the invention is not limited at all.
  • the base station includes:
  • the first sending unit 100 is configured to send an indication message to the terminal, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates the number of interference space layers, and the interference space layer Corresponding to a data signal transmitted by the base station to the terminal;
  • the second sending unit 200 is configured to send the data signal to the terminal.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field Means for indicating the existence of the MUST interference and the power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to The first field is used to indicate that the base station is in the corresponding space to the terminal when the transport block has been activated.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • first sending unit 100 and the second sending unit 200 may exist independently or may be integrated, and the first sending unit 100 or the second sending unit 200 in the above base station embodiment may be independent of hardware.
  • the processor of the base station is separately configured and can be in the form of a microprocessor; it can also be embedded in the processor of the base station by hardware, or can be stored in the memory of the base station in software, so as to facilitate the processor of the base station. Calling to execute the above first transmitting unit 100 and The operation corresponding to the second sending unit 200.
  • the first sending unit 100 and the second sending unit 200 are integrally arranged, and may also be set independently, or may also be used as a transceiver of a base station, independently set or integrated.
  • the base station includes:
  • Transceiver 110 and processor 120 are Transceiver 110 and processor 120,
  • the processor 110 is configured to control the transceiver 120 to send and receive information
  • the transceiver 120 is configured to send an indication message to the terminal, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates a number of interference space layers, and the interference space layer is Corresponding to the data signal transmitted by the base station to the terminal; and transmitting the data signal to the terminal.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to When the transport block has been activated, the first field is used to indicate the MUST interference presence and power ratio of the base station transmitting the data signal to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence condition and a power ratio on the spatial layer, where The second field is used to indicate that the base station transmits the power information of the data to the terminal; or the second field is used to indicate the presence of the MUST interference and the power ratio on the spatial layer, where the first field is used. And indicating to the base station to transmit power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • FIG. 6 is a schematic diagram of a composition of a terminal according to an embodiment of the present invention.
  • the terminal includes:
  • the first receiving unit 300 is configured to receive an indication message sent by the base station, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates a number of interference space layers, and the interference space layer And corresponding to a data signal transmitted by the base station to the terminal;
  • the calculating unit 400 is configured to calculate, according to the indication message, a power of receiving the data signal
  • the second receiving unit 500 is configured to receive the data information sent by the base station according to the calculated power.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to When the transport block has been activated, the first field is used to indicate the MUST interference presence and power ratio of the base station transmitting the data signal to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • FIG. 7 is a schematic structural diagram of another embodiment of a terminal according to the present invention.
  • the terminal includes:
  • the processor 210 and the transceiver 220 are identical to each other.
  • the transceiver 220 is configured to receive an indication message sent by the base station, where the indication message indicates that the base station transmits power information of the data signal to the terminal, or the indication message indicates a number of interference space layers, and the interference space layer Corresponding to a data signal transmitted by the base station to the terminal;
  • the processor 210 is configured to calculate, according to the indication message, a power of receiving the data signal
  • the transceiver 220 is further configured to receive the data signal sent by the base station according to the calculated power.
  • the indication message includes a first field, where the first field is used to indicate that the base station transmits power information of a data signal to the terminal, or the first field is used to indicate The MUST interference presence and power ratio of the data signal transmitted by the base station to the terminal on the corresponding spatial layer.
  • the first field when the transport block corresponding to the first field is inactive, the first field is used to indicate that the base station transmits power information of the data signal to the terminal; when the first field corresponds to When the transport block has been activated, the first field is used to indicate the MUST interference presence and power ratio of the base station transmitting the data signal to the terminal on the corresponding spatial layer.
  • the first field is used to indicate that the base station transmits power information of the data signal to the terminal.
  • the first field is used to indicate a presence of a MUST interference and a power ratio on the corresponding spatial layer.
  • the indication message includes a first field and a second field, where the first field is used to indicate a MUST interference presence and a power ratio on the spatial layer, the second field And indicating, by the base station, power information of transmitting data information to the terminal; or, the second field is used to indicate a presence of a MUST interference and a power ratio on the spatial layer, where the first field is used to indicate The base station transmits power information of the information to the terminal.
  • the power information includes a power offset, or includes whether to perform a power offset and a power offset, where the power offset is 0 or is a preset value.
  • the first field when the first field is used to indicate the MUST interference presence and power ratio on the spatial layer and the first field indicates that the MUST interference on the spatial layer does not exist, the first The two fields indicate that the power of the base station when transmitting the data signal to the terminal is not offset or the power offset is 0 or the second field is an invalid field;
  • the second field When the second field is used to indicate the MUST interference presence and power ratio on the spatial layer and the second field indicates that the MUST interference on the spatial layer does not exist, the second field indicates that the base station is The power when the terminal transmits the data signal has no offset or the power offset is 0 or the second field is invalid.
  • the base station introduced in this embodiment may be used to implement some or all of the processes in the method embodiment of the present invention in conjunction with FIG. 2, and perform some or all of the functions of the device embodiment introduced by the present invention in conjunction with FIG.
  • the terminal introduced in the present invention may be used to implement some or all of the processes in the embodiment of the present invention, and the implementation of the present invention in conjunction with FIG.
  • the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted as one or more instructions or code via a computer-readable medium and executed by a hardware-based processing unit.
  • the computer readable medium can comprise a computer readable storage medium (which corresponds to a tangible medium such as a data storage medium) or a communication medium comprising, for example, any medium that facilitates transfer of the computer program from one place to another in accordance with a communication protocol. .
  • computer readable media generally may correspond to (1) a non-transitory tangible computer readable storage medium, or (2) a communication medium such as a signal or carrier wave.
  • Data storage media may be any available media that can be accessed by one or more computers or one or more processors to retrieve instructions, code and/or data structures for use in carrying out the techniques described herein.
  • the computer program product can comprise a computer readable medium.
  • Some computer readable storage media may include RAM, ROM, by way of example and not limitation. EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device, flash memory, or any other medium that can be used to store desired program code in the form of an instruction or data structure and accessible by a computer. Also, any connection is properly termed a computer-readable medium. For example, if you use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (eg, infrared, radio, and microwave) to send commands from a website, server, or other remote source, coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies (eg, infrared, radio, and microwave) are included in the definition of the media.
  • coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology eg, infrared, radio, and microwave
  • a magnetic disk and an optical disk include a compact disk (CD), a laser disk, an optical disk, a digital video disk (DVD), a flexible disk, and a Blu-ray disk, wherein the disk usually reproduces data magnetically, and the disk passes the laser Optically copy data. Combinations of the above should also be included within the scope of computer readable media.
  • processors such as one or more digital signal processors (DSPs), general purpose microprocessors, application specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable logic arrays
  • processors may refer to any of the foregoing structures or any other structure suitable for implementing the techniques described herein.
  • the functionality described herein may be provided within dedicated hardware and/or software modules configured for encoding and decoding, or incorporated in a combined codec.
  • the techniques can be fully implemented in one or more circuits or logic elements.
  • the techniques of the present invention can be broadly implemented by a variety of devices or devices, including a wireless handset, an integrated circuit (IC), or a collection of ICs (eg, a chipset).
  • IC integrated circuit
  • Various components, modules or units are described in this disclosure to emphasize functional aspects of the apparatus configured to perform the disclosed techniques, but are not necessarily required to be implemented by different hardware units. Rather, as described above, various units may be combined in a codec hardware unit or combined with suitable software and/or by a collection of interoperable hardware units (including one or more processors as described above). Or firmware to provide.
  • an embodiment or “an embodiment” referred to throughout the specification means an embodiment. Specific features, structures, or characteristics are included in at least one embodiment of the invention. Thus, “in one embodiment” or “in an embodiment” or “an” In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
  • system and “network” are used interchangeably herein. It should be understood that the term “and/or” herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be ignored. Or not.
  • 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, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • 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.

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Abstract

本发明实施例公开了一种信息传输的方法、基站及终端，用于多用户叠加传输(MUST)系统，方法包括：基站向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；所述基站向所述终端发送所述数据信号。采用本发明，可提升基站与终端之间数据信号传输的可靠性。

Description

一种信息传输的方法、基站及终端 技术领域
本发明涉及通信技术领域，尤其涉及一种信息传输的方法、基站及终端。
背景技术
在长期演进(Long Term Evolution，LTE)或长期演进高级(Long Term Evolution Advanced，LTE-A)通信系统中，下行多址接入方式通常采用正交频分多址(Orthogonal Frequency Division Multiplexing Access，OFDMA)方式。正交频分多址方式的主要特点是不同用户使用不同的时频资源，确保不同用户之间的接收信号无干扰，进而实现用户侧的简单接收。然而，在使用正交频分多址的方式进行通信时，时频资源的利用率较低，导致通信系统的整体传输速率受到了限制。非正交多址(Non-orthogonal Multiplexing Access，NOMA)的传输方式能够在单个资源单元上传输多个用户的信息。与OFDMA相比，NOMA提升了系统的整体传输速率。进一步地，在半正交多址(Semi-orthogonal Multiplexing Access，SOMA)的传输方式中，利用了现有调制(或星座图)方式的格雷编码特性，使得终端的接收机可以采用简单的接收算法，从而进一步提升了系统性能。包括NOMA和SOMA在内的一些下行传输方案又统称为多用户叠加传输(Multi-user Superposing Transmission,MUST)。在LTE或LTE-A系统下的MUST通信中，允许两个或多个用户进行配对，在相同的时频资源上传输信息。针对两个用户相互配对的情况，两个用户可以采用不同的功率进行传输也可以采用不同的传输层数，通常将下行发送功率较大的用户称为远用户，将下行发送功率较小的用户称为近用户。
在现有技术中，基站会通知用户其终端采用的空间层上是否存在MUST干扰以及存在MUST干扰时远用户、近用户信号的功率配比值。但是由于与近用户配对远用户的终端采用的空间层数是可变的，因此将导致近用户的终端无法获知其准确的功率。当近用户采用单层的空分复用传输模式时，例如LTE中的秩为1的传输模式4，可记为TM4 Rank1；同时当远用户采用两层的空分 复用传输模式时，例如LTE中的秩为2的传输模式4，记为TM4 Rank2，此时近用户的空间层与远用户两个空间层中的一个空间层配对，记P为远用户和近用户的总功率，a为配对空间层上近用户功率的份额，此时近用户的功率为P*a/2。而当近用户为TM4 Rank1且远用户为TM4 Rank1时，近用户的功率则为P*a。需要说明的是，在MUST传输模式中，基站将叠加后的数据信号同时发送给配对的远终端(远用户的终端)和近终端(近用户的终端)，对于近终端来说，其接收到基站传输的数据信号中存在远终端的信息，该信息会对近终端解调自身的信息造成干扰，所以近终端会将接收到的数据信号中远终端的信息视作干扰，从而将远终端的空间层数视为干扰空间层数。可以看出，以上两种情况近用户的功率取值不同，从而导致近用户无法获知其准确的功率，这将影响数据信号传输的可靠性。
发明内容
本发明实施例提供了一种信息传输的方法、基站及终端，以提升数据信号传输的可靠性。
本发明实施例第一方面提供了一种信息传输的方法，用于多用户叠加传输(MUST)系统，可包括：
基站向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
所述基站向所述终端发送所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述 第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
本发明实施例第二方面提供了一种信息传输的方法，可包括：
终端接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传 输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
根据所述指示消息计算接收所述数据信号的功率；
根据计算得到的功率接收所述基站发送的所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在 时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
本发明实施例第三方面提供了一种基站，可包括：
第一发送单元，用于向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
第二发送单元，用于向所述终端发送所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述 第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
本发明实施例第四方面提供一种基站，可包括：
收发器和处理器，
所述处理器用于控制所述收发器收发信息；
所述收发器用于向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；以及向所述终端发送所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述 第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
本发明实施例第五方面提供了一种计算机程序产品，可包括计算机可读介质，所述计算机可读介质包括一组程序代码，用于执行如本发明实施例第一方 面任一实现方式所述的方法。
本发明实施例第六方面提供了一种终端，可包括：
第一接收单元，用于接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
计算单元，用于根据所述指示消息计算接收所述数据信号的功率；
第二接收单元，用于根据计算得到的功率接收所述基站发送的所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
本发明实施例第七方面提供了一种终端，可包括：
处理器和收发器，
所述收发器用于接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
所述处理器用于根据所述指示消息计算接收所述数据信号的的功率；
所述收发器还用于根据计算得到的功率接收所述基站发送的所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
本发明实施例第八方面提供了一种计算机程序产品，可包括计算机可读介质，所述计算机可读介质包括一组程序代码，用于执行如本发明实施例第二方面任一实现方式所述的方法。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施 例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的MUST系统的架构示意图；
图2为本发明实施例提供的一种信息传输的方法的流程示意图；
图3为本发明实施例提供的另一种信息传输的方法的流程示意图；
图4为本发明实施例提供的一种基站的组成示意图；
图5为本发明实施例提供的另一种基站的组成示意图；
图6为本发明实施例提供的一种终端的组成示意图；
图7为本发明实施例提供的另一种终端的组成示意图。
具体实施方式
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”和“第三”等是用于区别不同对象，而非用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或装置没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或装置固有的其它步骤或单元。
为了满足用户飞速提升的通信需求，在当前移动通信技术及后续的通信技术中，必须提高时频资源的利用率，提升整个通信系统的整体传输速率。这时，就可以对两个或多个用户进行配对，针对配对的用户，可以在相同的时频资源上传输信息，从而提升资源利用率和系统性能。
请参考图1，为本发明实施例提供的MUST系统的架构示意图。需要说明的是，该MUST系统只是举例说明，本发明的应用范围并不局限于此。
图1所示的MUST系统中包括基站和两个终端。所述基站可以为终端下发信令消息和发送下行数据信号，其可以包括但不限于：演进型节点B(evolved Node B，eNB)、节点B(Node B，NB)、基站控制器(Base Station Controller， BSC)、基站收发台(Base Transceiver Station,BTS)、家庭基站(例如，Home evolved NodeB，或Home Node B，HNB)等。
用户设备(User，Equipment，UE)，又可称之为终端，是一种为用户提供语音和/或数据连通性的设备，可以包括但不限于智能手机(如Android手机、iOS手机、Windows Phone手机等)、平板电脑、掌上电脑、笔记本电脑、移动互联网设备(Mobile Internet Devices，MID)或穿戴式设备等，上述终端仅是举例，而非穷举，包含但不限于上述终端。
图1中的终端1和终端2可以使用多用户叠加传输(MUST)的方法来与基站进行数据传输。这两个终端可以采用不同的功率进行传输也可以采用不同的传输层数，通常将下行发送功率较大的用户称为远用户，将下行发送功率较小的用户称为近用户。例如在图1中，终端2可以为远用户，终端1可以为近用户。由于用户采用的传输层数不同，这将导致近用户的终端无法准确的获知其功率，从而对数据信号传输的可靠性造成影响。因此，需要提供一种方法提示终端，使其能够获知准确的功率。
下面结合附图2-7，对本发明实施例中涉及的方法和设备进行描述。
请参照图2所示的一种信息传输的方法实施例的流程示意图；在本实施例中，所述方法用于MUS系统，具体包括以下步骤：
S201，基站向终端发送指示消息。
其中，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应。
S202，所述基站向所述终端发送所述数据信号。
在步骤S201中，可选地，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值，所述干扰信号的空间层数与所述功率偏移量对应。
所述预设值可以由系统预先设置，例如可设置为-10lg2，或者还可以由基 站预先通知给终端。
可选地，若所述功率信息包括功率偏移量，则可以指示一个具体的数值如0或者-lg2等。
若所述功率信息包括是否进行功率偏移和功率偏移量，则可以指示是否进行偏移，并指示具体偏移的数值如-10lg2等。当然，此处或者还可以由基站预先通知终端具体的功率偏移量，然后直接指示是否进行偏移即可。
当基站指示功率偏移量为-10lg2dB时，所述终端可以基于功率偏移量为0时计算获得的功率数值，再降低10lg2dB，将该数值作为自身功率的取值。
可选地，所述指示消息还可以用于指示用户终端在MUST传输模式中干扰信号或者干扰用户的空间层数，下述内容中统一用干扰层数描述。当所述用户为单层传输且所述指示消息指示干扰层数为1层时，所述用户在计算功率时不进行功率调整；当所述用户单单层传输且所述指示消息指示干扰层数为2层时，所述用户在计算功率时进行功率调整，功率调整量可以与预设值对应如-10lg2。
可选地，在步骤S201之前，基站可以对指示消息进行相应的配置。所述指示消息的组成可以是以下几种方式：
1)、所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
可选地，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
可选地，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第 一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
例如，一种可能的实现方式，所述指示消息为一个1bit的字段，该字段包括两种状态，各状态指示含义如表1所示。
表1
Figure PCTCN2016107166-appb-000001
上述X的取值可以是10lg2，也可以是其他取值，其具体值可以是系统预设参数，也可以是基站向用户终端预先配置的参数。
另一种可能的实现方式，所述指示消息为一个2bit的字段，该字段包括两种状态，各状态的指示含义如表2或表3所示。
表2
Figure PCTCN2016107166-appb-000002
表3
Figure PCTCN2016107166-appb-000003
Figure PCTCN2016107166-appb-000004
另一种可能的实现方式，所述指示消息为一个2bit的字段，该字段在基站采用单空间层或者单码字向终端传输时，指示含义如上表2或表3所示；当该字段在用户采用两空间层或者双码字传输时，用于指示用户在对应空间层上的干扰存在情况和功率配比。从而实现在现有指示方法中字段的使用上增加单码字情况下的使用。如表4所示。
表4
Figure PCTCN2016107166-appb-000005
上表中对于单码字的情况，可以理解为该字段包含2bit的第2比特用于指示功率信息，第1比特保留；类似的，也可以使用该字段包含2bit的第1比特 用于指示功率信息，第2比特保留。
2)、所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息。
可适用于所述指示消息包含第一字段和第二字段，当所述终端仅采用一个空间层传输数据信号的时候。例如，第一字段和第二字段都包含2bit，第一字段和第二字段的指示内容如表5所述，当终端采用一个空间层传输数据信号时，第一字段可以和现有技术一样用于指示这一空间层上的MUST干扰存在情况和功率配比，并使用第二字段指示所述基站向所述终端传输数据信号的功率信息，或者第一字段和第二字段互换。另外，当第一字段指示非配对传输即所述终端没有与之配对的远用户的终端时，第二字段指示的状态无效，即所述终端不对第二字段进行解读，或者第二字段指示的状态为下行功率偏移量为0dB(或不进行功率偏移)，即第二字段固定指示状态0。
表5
Figure PCTCN2016107166-appb-000006
Figure PCTCN2016107166-appb-000007
第一字段和第二字段的指示内容也可以如表6所述，当第二字段指示非配对传输时，第一字段指示的状态无效，或者第一字段指示的状态为下行功率偏移量为0dB(或不进行功率偏移)。
表6
Figure PCTCN2016107166-appb-000008
Figure PCTCN2016107166-appb-000009
Figure PCTCN2016107166-appb-000010
需要说明的是，所述第一字段和第二字段包含的比特数不限于1bit或2bits，所述第一字段和第二字段的取值与指示的下行功率信息对应的状态的对应关系也不限于上述表格中所示的对应关系，并且该对应关系不限于一对一的关系，可以是一对多，多对一或者多对多的关系。
需要说明的是，当所述指示消息中包含干扰空间层数信息时，所述第一字段或第二字段指示的状态至少包括指示干扰空间层数为1或干扰空间层数为2中的一个。具体的，可以如表7所示，也可以类似表1，表2，表3，表4，表5，表6中的所描述的内容，将功率偏移信息替换为干扰空间层数信息。例如，可以将表格中的描述“功率偏移0dB(不进行功率偏移)”替换为“干扰空间层数为1”，将“功率偏移-10lg2dB”替换为“干扰空间层数为2”。所述第一字段或第二字段的取值与指示的下行功率偏移信息对应的状态的对应关系也不限于这些表中所示的对应关系，并且该对应关系不限于一对一的关系，可以是一对多，多对一或者多对多的关系。
表7
比特对应的取值 指示含义
0 干扰空间层数为1
1 干扰空间层数为2
2 保留
3 保留
当基站配置好了指示消息之后，便可以将其发送给终端，以便终端根据指示消息计算接收数据信号的功率。然后由基站发送所述数据信号给所述终端，完成高质量的数据传输。
需要说明的是，以上指示消息中指示的功率信息可以是现有技术中定义的δpower-offset，也可以是新定义的参数
Figure PCTCN2016107166-appb-000011
本发明实施例不作任何限定。
在本实施例中，基站通过发送指示消息给终端，并在其中携带基站向终端传输数据信号时的功率信息或干扰信号的空间层数，从而使得终端可以根据这些信息计算并获得接收所述数据信号的准确功率，可以提升数据信号的传输可靠性。
请参照图3所示方法实施例的流程示意图；在本实施例中，所述方法用于MUST系统，具体包括以下步骤：
S301，终端接收基站发送的指示消息。
其中，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应。
可选地，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值，所述干扰信号的空间层数与所述功率偏移量对应。
所述预设值可以由系统预先设置，例如可设置为-10lg2，或者还可以由基站预先通知给终端。
可选地，若所述功率信息包括功率偏移量，则可以指示一个具体的数值如0或者-lg2等。
若所述功率信息包括是否进行功率偏移和功率偏移量，则可以指示是否进行偏移，并指示具体偏移的数值如-10lg2等。当然，此处或者还可以由基站预先通知终端具体的功率偏移量，然后直接指示是否进行偏移即可。
当基站指示功率偏移量为-10lg2dB时，所述终端可以基于功率偏移量为0时计算获得的功率数值，再降低10lg2dB，将该数值作为自身功率的取值。
可选地，所述指示消息还可以用于指示用户终端在MUST传输模式中干扰信号或者干扰用户的空间层数，下述内容中统一用干扰层数描述。当所述用户为单层传输且所述指示消息指示干扰层数为1层时，所述用户在计算功率时不进行功率调整；当所述用户单单层传输且所述指示消息指示干扰层数为2层时，所述用户在计算功率时进行功率调整，功率调整量可以与预设值对应如-10lg2。
可选地，基站可以对指示消息进行相应的配置。所述指示消息的组成可以是以下几种方式：
1)、所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
可选地，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
可选地，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
例如，一种可能的实现方式，所述指示消息为一个1bit的字段，该字段包括两种状态，各状态指示含义如表1所示。
表1
Figure PCTCN2016107166-appb-000012
上述X的取值可以是10lg2，也可以是其他取值，其具体值可以是系统预设参数，也可以是基站向用户终端预先配置的参数。
另一种可能的实现方式，所述指示消息为一个2bit的字段，该字段包括两种状态，各状态的指示含义如表2或表3所示。
表2
Figure PCTCN2016107166-appb-000013
表3
Figure PCTCN2016107166-appb-000014
Figure PCTCN2016107166-appb-000015
另一种可能的实现方式，所述指示消息为一个2bit的字段，该字段在基站采用单空间层或者单码字向终端传输时，指示含义如上表2或表3所示；当该字段在用户采用两空间层或者双码字传输时，用于指示用户在对应空间层上的干扰存在情况和功率配比。从而实现在现有指示方法中字段的使用上增加单码字情况下的使用。如表4所示。
表4
Figure PCTCN2016107166-appb-000016
上表中对于单码字的情况，可以理解为该字段包含2bit的第2比特用于指示功率信息，第1比特保留；类似的，也可以使用该字段包含2bit的第1比特 用于指示功率信息，第2比特保留。
2)、所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息。
可适用于所述指示消息包含第一字段和第二字段，当所述终端仅采用一个空间层传输数据信号的时候。例如，第一字段和第二字段都包含2bit，第一字段和第二字段的指示内容如表5所述，当终端采用一个空间层传输数据信号时，第一字段可以和现有技术一样用于指示这一空间层上的MUST干扰存在情况和功率配比，并使用第二字段指示所述基站向所述终端传输数据信号的功率信息，或者第一字段和第二字段互换。另外，当第一字段指示非配对传输即所述终端没有与之配对的远用户的终端时，第二字段指示的状态无效，即所述终端不对第二字段进行解读，或者第二字段指示的状态为下行功率偏移量为0dB(或不进行功率偏移)，即第二字段固定指示状态0。
表5
Figure PCTCN2016107166-appb-000017
Figure PCTCN2016107166-appb-000018
第一字段和第二字段的指示内容也可以如表6所述，当第二字段指示非配对传输时，第一字段指示的状态无效，或者第一字段指示的状态为下行功率偏移量为0dB(或不进行功率偏移)。
表6
Figure PCTCN2016107166-appb-000019
Figure PCTCN2016107166-appb-000020
Figure PCTCN2016107166-appb-000021
需要说明的是，所述第一字段和第二字段包含的比特数不限于1bit或2bits，所述第一字段和第二字段的取值与指示的下行功率信息对应的状态的对应关系也不限于上述表格中所示的对应关系，并且该对应关系不限于一对一的关系，可以是一对多，多对一或者多对多的关系。
需要说明的是，当所述指示消息中包含干扰空间层数信息时，所述第一字段或第二字段指示的状态至少包括指示干扰空间层数为1或干扰空间层数为2中的一个。具体的，可以如表7所示，也可以类似表1，表2，表3，表4，表5，表6中的所描述的内容，将功率偏移信息替换为干扰空间层数信息。例如，可以将表格中的描述“功率偏移0dB(不进行功率偏移)”替换为“干扰空间层数为1”，将“功率偏移-10lg2dB”替换为“干扰空间层数为2”。所述第一字段或第二字段的取值与指示的下行功率偏移信息对应的状态的对应关系也不限于这些表中所示的对应关系，并且该对应关系不限于一对一的关系，可以是一对多，多对一或者多对多的关系。
表7
比特对应的取值 指示含义
0 干扰空间层数为1
1 干扰空间层数为2
2 保留
3 保留
当基站配置好了指示消息之后，便可以将其发送给终端，以便终端根据指示消息计算接收数据信号的功率。然后由基站发送所述数据信号给所述终端，完成高质量的数据传输。
需要说明的是，以上指示消息中指示的功率信息可以是现有技术中定义的δpower-offset，也可以是新定义的参数
Figure PCTCN2016107166-appb-000022
本发明实施例不作任何限定。
S302，根据所述指示消息计算接收所述数据信号的功率。
S303，根据计算得到的功率接收所述基站发送的所述数据信号。
请参照图4所示基站实施例的组成示意图；在本实施例中，所述基站包括：
第一发送单元100，用于向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
第二发送单元200，用于向所述终端发送所述数据信号。
数据信号功率信息在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间 层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
需要说明的是，以上第一发送单元100和第二发送单元200可以独立存在，也可以集成设置，且以上基站实施例中第一发送单元100或第二发送单元200可以以硬件的形式独立于基站的处理器单独设置，且设置形式可以是微处理器的形式；也可以通过硬件形式内嵌于基站的处理器中，还可以以软件形式存储于基站的存储器中，以便于基站的处理器调用执行以上第一发送单元100和第 二发送单元200对应的操作。
第一发送单元100和第二发送单元200集成设置，也可以独立设置，或者还可以作为基站的收发器，独立设置或集成设置。
可选的，如图5所示，在本发明另一个实施例中，所述基站包括：
收发器110和处理器120，
所述处理器110用于控制所述收发器120收发信息；
所述收发器120用于向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；以及向所述终端发送所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第 二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
请参照图6，为本发明终端实施例的组成示意图；在本实施例中，所述终端包括：
第一接收单元300，用于接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
计算单元400，用于根据所述指示消息计算接收所述数据信号的功率；
第二接收单元500，用于根据计算得到的功率接收所述基站发送的所述数据信息。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
请参照图7，为本发明终端的另一实施例的组成示意图；在本实施例中， 所述终端包括：
处理器210和收发器220，
所述收发器220用于接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
所述处理器210用于根据所述指示消息计算接收所述数据信号的的功率；
所述收发器220还用于根据计算得到的功率接收所述基站发送的所述数据信号。
在一种可能的实施方式中，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
在一种可能的实施方式中，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
在一种可能的实施方式中，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
在一种可能的实施方式中，当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
本实施例中介绍的基站可以用以实施本发明结合图2介绍的方法实施例中的部分或全部流程，以及执行本发明结合图5介绍的装置实施例中的部分或全部功能，本实施例中介绍的终端可以用以实施本发明结合图3介绍的方法实施例中的部分或全部流程，以及执行本发明结合图6介绍的装置实施例中的部分或全部功能，在此不再赘述。
在一个或多个实例中，所描述的功能可以硬件、软件、固件或其任何组合来实施。如果以软件实施，则功能可作为一个或多个指令或代码而存储于计算机可读媒体上或经由计算机可读媒体而发送，且通过基于硬件的处理单元执行。计算机可读媒体可包含计算机可读存储媒体(其对应于例如数据存储媒体等有形媒体)或通信媒体，通信媒体包含(例如)根据通信协议促进计算机程序从一处传送到另一处的任何媒体。以此方式，计算机可读媒体大体上可对应于(1)非瞬时的有形计算机可读存储媒体，或(2)例如信号或载波等通信媒体。数据存储媒体可为可由一个或多个计算机或一个或多个处理器存取以检索指令、代码及/或数据结构以用于实施本发明中所描述的技术的任何可用媒体。计算机程序产品可包含计算机可读媒体。
通过实例而非限制，某些计算机可读存储媒体可包括RAM、ROM、 EEPROM、CD-ROM或其它光盘存储器、磁盘存储器或其它磁性存储装置、快闪存储器，或可用以存储呈指令或数据结构的形式的所要程序代码且可由计算机存取的任何其它媒体。而且，任何连接可适当地称为计算机可读媒体。举例来说，如果使用同轴电缆、光缆、双绞线、数字用户线(DSL)或无线技术(例如，红外线、无线电及微波)而从网站、服务器或其它远程源发送指令，则同轴电缆、光缆、双绞线、DSL或无线技术(例如，红外线、无线电及微波)包含于媒体的定义中。然而，应理解，计算机可读存储媒体及数据存储媒体不包含连接、载波、信号或其它瞬时媒体，而是有关非瞬时有形存储媒体。如本文中所使用，磁盘及光盘包含压缩光盘(CD)、激光光盘、光学光盘、数字影音光盘(DVD)、软性磁盘及蓝光光盘，其中磁盘通常以磁性方式复制数据，而光盘通过激光以光学方式复制数据。以上各物的组合还应包含于计算机可读媒体的范围内。
可由例如一个或多个数字信号处理器(DSP)、通用微处理器、专用集成电路(ASIC)、现场可编程逻辑阵列(FPGA)或其它等效集成或离散逻辑电路等一个或多个处理器来执行指令。因此，如本文中所使用的术语“处理器”可指代前述结构或适于实施本文中所描述的技术的任何其它结构中的任一者。另外，在一些方面中，可将本文中所描述的功能性提供于经配置以用于编码及解码的专用硬件及/或软件模块内，或并入于组合式编解码器中。而且，所述技术可完全实施于一个或多个电路或逻辑元件中。
本发明的技术可以广泛地由多种装置或设备来实施，所述装置或设备包含无线手持机、集成电路(IC)或IC集合(例如，芯片组)。在本发明中描述各种组件、模块或单元以强调经配置以执行所揭示技术的装置的功能方面，但未必要求通过不同硬件单元来实现。确切地说，如上文所描述，各种单元可组合于编解码器硬件单元中，或通过交互操作性硬件单元(包含如上文所描述的一个或多个处理器)的集合结合合适软件及/或固件来提供。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例 有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
在本发明的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。
另外，本文中术语“系统”和“网络”在本文中常可互换使用。应理解，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请所提供的实施例中，应理解，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性 的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (42)

  1. 一种信息传输的方法，用于多用户叠加传输(MUST)系统，其特征在于，包括：
    基站向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
    所述基站向所述终端发送所述数据信号。
  2. 如权利要求1所述的方法，其特征在于，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  3. 如权利要求2所述的方法，其特征在于，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  4. 如权利要求2所述的方法，其特征在于，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
    当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
  5. 如权利要求1所述的方法，其特征在于，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配 比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
  6. 如权利要求1至5任意一项所述的方法，其特征在于，数据信号功率信息所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
  7. 如权利要求5所述的方法，其特征在于，包括：
    当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
    当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
  8. 一种信息传输的方法，用于多用户叠加传输(MUST)系统，其特征在于，包括：
    终端接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
    根据所述指示消息计算接收所述数据信号的功率；
    根据计算得到的功率接收所述基站发送的所述数据信息。
  9. 如权利要求8所述的方法，其特征在于，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  10. 如权利要求9所述的方法，其特征在于，当所述第一字段对应的传输 块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  11. 如权利要求9所述的方法，其特征在于，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
    当所述终端采用两空间层的传输模式向所述终端传输数据信号时，
    所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
  12. 如权利要求8所述的方法，其特征在于，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
  13. 如权利要求8至12任意一项所述的方法，其特征在于，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
  14. 如权利要求12所述的方法，其特征在于，包括：
    当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
    当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
  15. 一种基站，用于MUST系统，其特征在于，包括：
    第一发送单元，用于向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
    第二发送单元，用于向所述终端发送所述数据信号。
  16. 如权利要求15所述的基站，其特征在于，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  17. 如权利要求16所述的基站，其特征在于，
    当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  18. 如权利要求16所述的基站，其特征在于，
    当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
    当所述终端采用两空间层的传输模式向所述终端传输数据信号时，
    所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
  19. 如权利要求14所述的基站，其特征在于，
    所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
  20. 如权利要求14至19任意一项所述的基站，其特征在于，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
  21. 如权利要求19所述的方法，其特征在于，包括：
    当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
    当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
  22. 一种基站，用于MUST系统，其特征在于，包括：
    收发器和处理器，
    所述处理器用于控制所述收发器收发信息；
    所述收发器用于向终端发送指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；以及向所述终端发送所述数据信号。
  23. 如权利要求22所述的基站，其特征在于，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  24. 如权利要求18所述的基站，其特征在于，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述 终端在对应空间层上传输数据的MUST干扰存在情况和功率配比。
  25. 如权利要求18所述的基站，其特征在于，
    当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
    当所述终端采用两空间层的传输模式向所述终端传输数据信号时，
    所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
  26. 如权利要求17所述的基站，其特征在于，
    所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
  27. 如权利要求17至21中的任意一项所述的基站，其特征在于，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
  28. 如权利要求21所述的基站，其特征在于，包括：
    当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
    当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
  29. 一种终端，用于MUST系统，其特征在于，包括：
    第一接收单元，用于接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
    计算单元，用于根据所述指示消息计算接收所述数据信号的功率；
    第二接收单元，用于根据计算得到的功率接收所述基站发送的所述数据信号。
  30. 如权利要求29所述的终端，其特征在于，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  31. 如权利要求30所述的方法，其特征在于，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  32. 如权利要求30所述的方法，其特征在于，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
    当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
  33. 如权利要求29所述的方法，其特征在于，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
  34. 如权利要求29至33任意一项所述的方法，其特征在于，所述功率信 息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
  35. 如权利要求33所述的方法，其特征在于，包括：
    当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
    当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
  36. 一种终端，用于MUST系统，其特征在于，包括：
    处理器和收发器，
    所述收发器用于接收基站发送的指示消息，所述指示消息指示所述基站向所述终端传输数据信号的功率信息，或者所述指示消息指示干扰空间层数，所述干扰空间层数与所述基站向所述终端传输的数据信号对应；
    所述处理器用于根据所述指示消息计算接收所述数据信号的的功率；
    所述收发器还用于根据计算得到的功率接收所述基站发送的所述数据信号。
  37. 如权利要求36所述的终端，其特征在于，所述指示消息包含第一字段，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息，或者所述第一字段用于指示所述基站向所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  38. 如权利要求37所述的终端，其特征在于，当所述第一字段对应的传输块未激活时，所述第一字段用于指示基站向所述终端传输数据信号的功率信息；当所述第一字段对应的传输块已被激活时，所述第一字段用于指示基站向 所述终端在对应空间层上传输数据信号的MUST干扰存在情况和功率配比。
  39. 如权利要求37所述的终端，其特征在于，当所述基站采用单空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示所述基站向所述终端传输数据信号的功率信息；
    当所述终端采用两空间层的传输模式向所述终端传输数据信号时，所述第一字段用于指示对应空间层上的MUST干扰存在情况和功率配比。
  40. 如权利要求36所述的终端，其特征在于，所述指示消息包含第一字段和第二字段，所述第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第二字段用于指示所述基站向所述终端传输据信息的功率信息；或者，所述第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比，所述第一字段用于指示所述基站向所述终端传输据信息的功率信息。
  41. 如权利要求36至40任意一项所述的终端，其特征在于，所述功率信息包括功率偏移量，或者包括是否进行功率偏移和功率偏移量，所述功率偏移量为0或为预设值。
  42. 如权利要求40所述的终端，其特征在于，包括：
    当第一字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第一字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效字段；
    当第二字段用于指示所述空间层上的MUST干扰存在情况和功率配比且第二字段指示所述空间层上的MUST干扰不存在时，所述第二字段指示所述基站向所述终端传输数据信号时的功率无偏移或功率偏移量为0或者所述第二字段为无效。
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