WO2014047766A1 - 通信方法、用户设备、基站与通信系统 - Google Patents

通信方法、用户设备、基站与通信系统 Download PDF

Info

Publication number
WO2014047766A1
WO2014047766A1 PCT/CN2012/081879 CN2012081879W WO2014047766A1 WO 2014047766 A1 WO2014047766 A1 WO 2014047766A1 CN 2012081879 W CN2012081879 W CN 2012081879W WO 2014047766 A1 WO2014047766 A1 WO 2014047766A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
channel state
user equipment
base station
channel
Prior art date
Application number
PCT/CN2012/081879
Other languages
English (en)
French (fr)
Inventor
陈力
苏宁
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/081879 priority Critical patent/WO2014047766A1/zh
Priority to CN201280018659.9A priority patent/CN103858468B/zh
Publication of WO2014047766A1 publication Critical patent/WO2014047766A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Definitions

  • the present invention relates to the field of communications, and in particular, to a communication method, a user equipment, a base station, and a communication system.
  • the use of radio resources is controlled by a base station on the network side, that is, the base station determines how user equipment (UE) uses air interface resources, such as a used resource block (RB), a modulation and coding scheme ( Modulation and coding scheme, MCS), etc.
  • UE user equipment
  • air interface resources such as a used resource block (RB), a modulation and coding scheme ( Modulation and coding scheme, MCS), etc.
  • MCS Modulation and coding scheme
  • the base station performs downlink scheduling according to the actual air interface quality of the UE. For example, when the air interface quality is good, the higher-level MCS is used (more data can be transmitted). When the air interface quality is poor, the base station uses lower. Level MCS to make full use of air interface resources.
  • the base station needs to know the current air interface quality, but the air interface quality in the downlink direction can only be observed by the UE as the receiver, and the base station as the sender cannot obtain it by itself. Therefore, the UE needs to report the measured channel state (for example, channel quality or channel condition) information to the base station for use by the base station as one of the basis for radio resource scheduling.
  • the measured channel state for example, channel quality or channel condition
  • the reporting mechanism of the channel state information by the UE is configured or triggered by the base station, and mainly includes two types of reporting mechanisms: one is a periodic reporting mechanism on a physical uplink control channel (PUCCH), and the other is a type. It is a non-periodic reporting mechanism on the physical uplink shared channel (PUSCH).
  • the base station may configure the reporting period and the like by radio resource control (RRC) signaling.
  • RRC radio resource control
  • the base station may report the UE reporting by using the PDCCH.
  • the PDCCH indicates that the aperiodic reporting of the PUSCH is triggered once.
  • the base station Since the channel state of the UE changes with time, in order to accurately schedule, the base station needs to do It is possible to obtain the channel state at the latest time, and the UE needs to report the channel state information frequently, which consumes a lot of valuable air interface resources, resulting in waste of air interface resources.
  • an embodiment of the present invention provides a communication method, a user equipment, a base station, and a communication system, to reduce consumption of air interface resources in a channel state information reporting process.
  • a communication method including: acquiring, by a user equipment, channel state information; determining, by the user equipment, whether a channel state meets a preset condition according to the acquired channel state information; and when the channel state meets a preset condition The user equipment reports the indication information or the channel state information to the base station.
  • the indication information includes type information of a channel state change, and/or level information of a channel state change.
  • the type information of the channel state change includes one of the following information or any combination thereof: frequency selection characteristic, all The bandwidth channel quality indication CQI, the precoding matrix indicates the PMI and the rank RANK of the channel matrix.
  • the indication information is a media access control layer control cell MAC CE, where The MAC CE includes a header.
  • the load part in combination with the third possible implementation manner of the first aspect, includes type information of a channel state change, and/or level information of a channel state change.
  • the method further includes: the user equipment receiving the configuration sent by the base station Information, the configuration information includes a channel state measurement type; the user equipment Acquiring the channel state information includes: the user equipment acquiring the channel state information according to the channel state measurement type.
  • the channel state measurement type includes one of the following types or any combination thereof: frequency selection characteristic measurement, full bandwidth CQI measurement, PMI measurement and RANK measurement.
  • the configuration information further includes: the indication information configuration, where the user equipment reporting the indication information to the base station includes: The user equipment configures and reports the indication information according to the indication information.
  • the preset condition is preset to a network side, and the configuration information further includes the preset condition .
  • the preset condition is preset on the user equipment side.
  • a second aspect of the present invention provides a communication method, including: receiving, by a base station, indication information reported by a user equipment or channel state information currently acquired by the user equipment, where the indication information or channel state information currently acquired by the user equipment is The user equipment reports the channel state when the channel state meets the preset condition; the base station performs radio resource scheduling, the method includes: if the base station receives the indication information, the base station acquires a channel state from the user equipment according to the indication information. And performing radio resource scheduling according to the obtained channel state information; or if the base station receives the channel state information currently acquired by the user equipment, the base station performs radio resource scheduling according to the channel state information currently acquired by the user equipment.
  • the indication information includes type information of a channel state change
  • the acquiring, by the base station, channel state information from the user equipment according to the indication information includes: The user equipment acquires channel state information corresponding to the type information of the channel state change.
  • the indication information further includes level information of the channel state change, and the level information of the channel state change corresponds to the type information of the channel state change, and the base station is used by the user according to the indication information.
  • the acquiring the channel state information by the device includes: if the level information of the channel state change meets the preset level requirement, the base station acquires channel state information corresponding to the type information of the channel state change from the user equipment.
  • the type information of the channel state change includes the following information One or any combination thereof: frequency selection characteristics, full bandwidth channel quality indication
  • the indication information is a media access control layer control cell MAC CE, where The MAC CE includes a header.
  • the MAC CE further includes a load part, where the load part includes type information of a channel state change, and Or, the level information of the channel state change.
  • the method further includes: sending, by the base station, configuration information to the user equipment, in combination with the second aspect to the fifth possible implementation manner of the second aspect,
  • the configuration information includes a channel state measurement type, where the channel state measurement type is used to indicate that the user equipment acquires channel state information of a corresponding type, to determine whether the channel state meets the preset condition according to the acquired channel state information.
  • the channel state measurement type includes one of the following types or any combination thereof: frequency selection characteristic measurement, full bandwidth CQI measurement, PMI measurement and RANK measurement.
  • the configuration information further includes an indication information configuration, so that the user equipment is configured according to the indication information. >3 ⁇ 4 the indication information.
  • the preset condition is preset to a network side, and the configuration information further includes the preset condition .
  • the user equipment including: an acquiring unit, configured to acquire channel state information, and a determining unit, configured to determine, according to the channel state information acquired by the acquiring unit, whether a channel state meets a preset condition; And when the channel state meets a preset condition, reporting the indication information or the channel state information to the base station.
  • the indication information includes type information of a channel state change, and/or level information of a channel state change.
  • the type information of the channel state change includes one of the following information or any combination thereof: frequency selection characteristic, all The bandwidth channel quality indication CQI, the precoding matrix indicates the PMI and the rank RANK of the channel matrix.
  • the indication information is a media access control layer control cell MAC CE, where The MAC CE includes a header.
  • the MAC CE further includes a load part, where the load part includes type information of a channel state change, and Or, the level information of the channel state change.
  • the user equipment further includes: a receiving unit, configured to receive, by the base station,
  • the configuration information includes a channel state measurement type
  • the acquiring unit is specifically configured to acquire the channel state information according to the channel state measurement type.
  • the channel state measurement type includes one of the following types or any combination thereof: frequency selection characteristic measurement, full bandwidth CQI measurement, PMI measurement and RANK measurement.
  • the configuration information further includes the indication information configuration, and the reporting unit is specifically configured to be used according to the fifth possible implementation manner of the third aspect.
  • the indication information is configured with the indication information indicated by " ⁇ .
  • the preset condition is preset to a network side, and the configuration information further includes the preset condition .
  • the user equipment further includes: a storage unit, configured to store the preset condition.
  • a fourth aspect provides a user equipment, including a receiver, a transmitter, a memory, and a processor respectively connected to the receiver, the transmitter, and the memory, wherein the memory stores a set of program codes, and the processor calls the The program code stored in the memory is used to execute any one of the first aspect to the ninth possible implementation manner of the first aspect.
  • a base station including a receiving unit or an acquiring unit, and a scheduling unit, where the receiving unit is configured to receive channel state information currently obtained by the user equipment reported by the user equipment, where the channel state information is The user equipment is reported when the channel state meets the preset condition; the acquiring unit is configured to receive the indication information reported by the user equipment, and obtain channel state information from the user equipment according to the indication information, where the indication information is The user equipment is reported when the channel state meets the preset condition; the scheduling unit is configured to: according to the channel state information currently obtained by the user equipment received by the receiving unit or the channel acquired by the acquiring unit from the user equipment Status information for wireless resource scheduling.
  • the indication information includes type information of a channel state change
  • the acquiring unit is specifically configured to acquire, according to the type information of the channel state change, the user equipment Channel status information.
  • the indication information further includes level information of a channel state change
  • the channel is The level information of the state change corresponds to the type information of the channel state change
  • the acquiring unit is specifically configured to acquire, when the level information of the channel state change meets the preset level requirement, Channel type information corresponding to the type information of the channel state change.
  • the type information of the channel state change includes the following information One or any combination thereof: frequency selection characteristics, full bandwidth channel quality indication
  • the indication information is a media access control layer control cell MAC CE, where The MAC CE includes a header.
  • the MAC CE further includes a load part, where the load part includes type information of a channel state change, and Or, the level information of the channel state change.
  • the base station further comprising: a sending unit, configured to send to the user, in combination with the fifth aspect, the fifth possible implementation manner of the fifth aspect
  • the device sends configuration information, where the configuration information includes a channel state measurement type, where the channel state measurement type is used to indicate that the user equipment acquires channel state information of a corresponding type, to determine whether the channel state meets the preset according to the acquired channel state information. condition.
  • the channel state measurement type includes one of the following types or any combination thereof: frequency selection characteristic measurement, full bandwidth CQI measurement, PMI measurement and RANK measurement.
  • the configuration information further includes an indication information configuration, so that the user equipment is configured according to the indication information. >3 ⁇ 4 the indication information.
  • the preset condition is preset on a network side, and the configuration information further includes Presuppose conditions.
  • a base station comprising: a receiver, a transmitter, a memory, and a processor respectively connected to the receiver, the transmitter, and the memory, the memory storing a set of program codes, the processor calling the The program code stored in the memory is used in any one of the second aspect to the ninth possible implementation manner of the second aspect.
  • a seventh aspect a computer program product comprising a computer readable medium, the readable medium comprising a set of program code for performing any of the first aspect to the ninth possible implementation of the first aspect Communication method.
  • a computer program product comprising a computer readable medium comprising a set of program code for performing any of the second aspect to the ninth possible implementation of the second aspect Communication method.
  • the ninth aspect provides a communication system, including: the third aspect, any possible implementation manner of the third aspect, or the user equipment of the fourth aspect, and the fifth aspect, the fifth communication with the user equipment A possible implementation manner of the aspect, or the base station of the sixth aspect.
  • the UE determines whether the current channel state meets the preset condition according to the channel state information, and reports to the base station when the preset condition is met, thereby reducing unnecessary reporting and effectively saving air interface resources. .
  • FIG. 1 is a flowchart of a communication method according to an embodiment of the present invention
  • FIG. 3 is a flowchart of still another communication method according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another UE according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of still another UE according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of still another base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of still another base station according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of still another base station according to an embodiment of the present invention.
  • the base station in the present application is an access network element in a wireless communication system, and is not limited to a wireless access system, and may be, for example, an evolved type in a long term evolution (LTE) or advanced long term evolution (LTE-Advanced) communication system.
  • the evolved node B (eNB) may be a node B (node B) in the 3G communication system, or may be a base transceiver station in a global system for mobile communication (GSM). BTS).
  • the base station needs to know the state of the downlink channel to accurately schedule radio resources.
  • the UE needs to report channel status information periodically. Even if the content of the two reports is the same or similar, the UE still needs to report, which causes waste of air interface resources.
  • LTE or LTE-A systems support a large bandwidth, and a single cell can be up to 20M.
  • the channel state is often not exactly the same in such a wide frequency range: for example, the channel state is better in some bands and the channel state is worse in some bands.
  • some UEs may have better channel conditions on Band A, but worse on Band B.
  • Some UEs have better channel conditions on Band B, but are worse on Band A.
  • the UE can preferentially use the frequency band with better channel state when the UE is scheduled, and improve the resource efficiency of the whole system.
  • the scheduling mode of the frequency band with the best channel state is the frequency selection scheduling.
  • the UE needs to periodically report channel state information of different frequency bands for use by the eNB. Even if the current channel state does not need to perform frequency selection scheduling, the UE still needs to report, which causes waste of air interface resources.
  • the embodiment of the present invention fully considers the above problem, and considers that the acquisition of the downlink channel state information is on the UE side, and the user is the base station. If the utilization part of the channel state information is transferred to the UE side, so that the UE only reports the information useful for the base station resource scheduling, the consumption of the air interface resource can be effectively reduced. For example, after the UE obtains the channel state information, it can determine whether the channel state needs to perform frequency selection scheduling or whether the channel state needs to be changed in the frequency selection scheduling. If yes, the reporting to the base station is triggered, thereby effectively saving air interface resources. . For example, after measuring the channel state information, the UE compares the channel state information previously reported to the base station, and when the channel state changes greatly, the UE reports the reporting to the base station, thereby effectively saving the air interface resources.
  • the channel state needs to perform frequency selection scheduling or the degree of channel state change to trigger the reporting to the base station, it can be configured in advance according to the policy requirements on the network side, and the configured information is called a preset condition (also referred to as Triggering conditions).
  • the preset condition can also be predefined on the UE side and saved in the UE.
  • the preset conditions are different depending on the type of channel state information.
  • the embodiment of the invention does not impose any limitation.
  • the following state in which the channel state needs to perform frequency selection scheduling is referred to as frequency selective.
  • a state in which the channel state does not require frequency selection scheduling is referred to as frequencyless selectivity.
  • the frequency selectivity means that when the system bandwidth can be divided into a plurality of sub-bands, the channel state of each sub-band is different, and a sub-band with a good channel state can be preferentially selected for scheduling.
  • the reporting of the UE to the base station may be indication information to indicate that the base station acquires the channel state information; or may be the currently measured channel state information; that is, the UE may report the indication information, or directly report the currently measured channel state information.
  • FIG. 1 is a flowchart of a communication method according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:
  • S110 The UE acquires channel state information.
  • step S120 The UE determines, according to the acquired channel state information, whether the channel state meets the preset condition. When the channel state meets the preset condition, step S130 is performed; otherwise, the UE does not report.
  • the UE reports the indication information or the channel state information to the base station.
  • the UE after determining the channel state information, determines whether the current channel state meets the preset condition according to the channel state information, and reports to the base station when the preset condition is met, thereby reducing unnecessary reporting. Effectively save air interface resources.
  • the UE acquires channel state information by channel state measurement
  • the channel state measurement may include one or more, for example: frequency selection characteristic measurement, full bandwidth channel quality indication (CQI) Measurement, precoding matrix indicator (PMI) measurement and one or more of the rank of the channel matrix (RANK, ie, the number of eigenvalues of the channel matrix).
  • the UE may perform one or more channel state measurements by default, or may configure a channel state measurement type for the UE by the network side. Referring to FIG. 2, if configured by the network side, before the foregoing step S110, the method further includes:
  • the UE receives configuration information sent by the base station, where the configuration information includes a channel state measurement type. Then in the above step S110, the UE further measures the channel state according to the configuration information. The type gets the channel type information of the corresponding type.
  • the channel state measurement type includes one of the following types or any combination thereof: frequency selection characteristic measurement, full bandwidth CQI measurement, PMI measurement, and RANK measurement.
  • the preset conditions are configured in advance according to the policy requirements, and the configured preset conditions are different according to the types of the channel state information.
  • the preset condition may be preset on the network side, or may be preset on the UE side, and the embodiment of the present invention does not impose any limitation.
  • the base station may send the configuration information in the foregoing step S100 to the UE, that is, the configuration information further includes a preset condition.
  • the information reported by the UE may be indication information, or may be acquired channel state information; and the content and form of the indication information may be predefined.
  • the UE may default to utilizing such predefined content and form escalation.
  • the content and the form of the indication information are also pre-defined on the network side, and the embodiment of the present invention does not impose any limitation.
  • the base station may send the configuration information to the UE in the foregoing step S100, that is, the configuration information further includes the indication information configuration, where the indication information is configured to indicate the indication information reported by the UE. Content and form.
  • the pre-defined indication information includes type information of channel state change, level information of channel state change, and the like.
  • the base station can determine the type of the channel state information acquired from the UE according to the indication information, thereby reducing the reporting of the channel type information of the unnecessary type, and further saving the air interface resource; the base station can further determine whether the UE is from the UE according to the level of the channel state change. Obtain channel state information to further save air interface resources.
  • the UE When the channel state meets the preset condition, the UE reports the information to the base station or directly reports the currently obtained channel state information. When the UE directly reports the currently obtained channel state information, the base station performs radio resource scheduling according to the channel state information reported by the UE. When the UE reports the indication information, the base station determines whether the channel state information and the acquired channel state information need to be obtained according to the indication information, and further reduces unnecessary channel state information reporting, thereby saving more air interface resources.
  • the embodiment of the present invention further provides a flowchart of a communication method, as shown in FIG. 3 . As shown, the method is performed by the base station, and includes the following steps:
  • the base station receives the indication information reported by the UE or the channel state information currently acquired by the UE, where the indication information or the channel state information currently acquired by the UE is received by the UE when the channel state meets the preset condition;
  • the following steps S320 and S330 are performed; if the base station receives the channel state information currently acquired by the UE reported by the UE, the following step S300 is performed.
  • the base station acquires channel state information from the UE according to the indication information.
  • the base station performs radio resource scheduling according to the channel state information acquired in step S320.
  • the base station performs radio resource scheduling according to the channel state information currently acquired by the UE received in step S310.
  • the above indication information may include type information of channel state change, and may also include level information corresponding to each channel state change type.
  • the base station can obtain the channel state information of the corresponding type according to the type information of the channel state change, further reducing the reporting of unnecessary channel state information, and saving air interface resources.
  • the channel state information acquired by the UE includes CQL PMI, RANK, etc.; according to the CQI, the UE finds that the frequency selectivity of the channel state has not changed, and is still in a frequency-free state, but the PMI and the RANK have changed; The information informs the base station of the current channel state. The base station learns that the channel frequency selectivity has not changed by the indication information, and the PMI and the RANK have changed. Therefore, the PMI and the RANK information are acquired from the UE according to the indication information without acquiring the CQI information. In this way, the channel state information that the UE needs to report is further reduced, and the air interface resource is further saved.
  • the base station may preset a policy, and when the level information of a channel state change satisfies a preset level requirement, the base station acquires and meets the level requirement from the UE.
  • Channel state change type information corresponding channel state information. For example, CQI information is acquired only when a plurality of levels are preset for changes in CQI and the change is preset to a certain level or more. In this way, the channel shape that the UE needs to report can be further reduced. State information, further saving air resources.
  • step S310 whether the channel state satisfies the preset condition is determined by the UE according to the measured channel state information.
  • the type of channel state information measurement performed by the UE can be configured by the network side and sent to the UE through the base station. Referring to FIG. 4, if configured by the network side, before the step S310, the method further includes:
  • the base station sends configuration information to the UE, where the configuration information includes a channel state measurement type, where the channel state measurement type is used to instruct the UE to acquire channel state information of a corresponding type, to determine whether the channel state meets the pre-determination according to the acquired channel state information.
  • the configuration information includes a channel state measurement type, where the channel state measurement type is used to instruct the UE to acquire channel state information of a corresponding type, to determine whether the channel state meets the pre-determination according to the acquired channel state information.
  • the channel state measurement type includes one of the following types or any combination thereof: frequency selective characteristic measurement, full bandwidth CQI measurement, PMI measurement, and RANK measurement.
  • the configuration information may further include a preset condition, and may also include an indication information configuration. I will not repeat them here.
  • the base station may send configuration information to the UE by using RRC signaling or a medium access control layer control element (MAC CE).
  • RRC signaling e.g., RRC reconfiguration signaling
  • MAC CE medium access control layer control element
  • the above channel state information may include one of the following information or any combination thereof: CQI, signal to interference plus noise ratio (SINR), PMI, and RANK.
  • CQI channel state information
  • SINR signal to interference plus noise ratio
  • PMI signal to interference plus noise ratio
  • RANK Radio Network Controller
  • a MAC CE may be defined as the above indication information.
  • the role of the MAC CE is to inform the base station of the change of the channel state, so that the base station can determine whether further detailed channel state information needs to be obtained according to the indication information.
  • the change of the channel state can be reflected by different information, and the notification of the changed information can be simple or more complicated, and can be implemented by defining the MAC CE.
  • the MAC CE header may be defined as the MAC CE identifier (ID), and the length of the payload portion is set to "0"; at this time, the MAC CE is used to trigger the base station to acquire all channel shapes. State information.
  • the MAC CE load may be defined in different levels of detail to reflect the general situation of the channel state change. If the base station determines that the channel state information needs to be further obtained according to the situation reflected by the MAC CE, the UE is triggered to report the channel state information.
  • the load part of the MAC CE may include type information of channel state change (hereinafter referred to as type information) or level information of channel state change (hereinafter referred to as level information), and may include both type information and level information; wherein the type information indicates The type of channel state change, the level information indicates the degree of channel state change. And when the indication information includes both the type information and the level information, the correspondence between the type information and the level information may be set.
  • type information type information of channel state change
  • level information level information of channel state change
  • the load portion of the MAC CE includes type information (lower 3 bits) and level information (high 5 bits).
  • the type information may include a frequency selection characteristic, a full bandwidth CQI, a PMI, and a RANK; wherein the reserved bits may facilitate later expansion of more type information.
  • the base station can determine the frequency selection characteristic of the channel according to the information, thereby triggering the UE to report the channel status information.
  • the low 3 is "1" it indicates that the channel state changes from a frequency selective characteristic to a frequencyless selection characteristic.
  • the base station can determine the frequency-free selection feature of the channel according to the information, so that the UE does not need to report the channel state information. Others are similar.
  • the RANK changes, and the base station can trigger the UE to report the channel state information accordingly.
  • the level information may include multiple levels, and may be configured in advance on the network side according to policy requirements.
  • Table 1 is only an example and is not intended to limit the present invention.
  • a MAC CE may be separately set for each type of channel state information, and only the type identifier may be added at this time; multiple types of channel state information may be set in one MAC CE as shown in Table 1; Some types of channel state information are set to one MAC CE, and other types of channel state information are set to a MAC CE.
  • the payload portion of the MAC CE may include only type information or level information, and may also include type information and level information (as shown in Table 1).
  • the embodiment of the present invention does not limit the number of bits and positions occupied by the type information and the level information.
  • the load length of the MAC CE is m (m is a positive integer), and the type information may be located at the lower n bits (n is less than or equal to m) The positive integer), the level information may be located at the high mn bit; or the level information may be located at the lower n bits (n is a positive integer less than or equal to m), and the type information may be located at the high mn bit.
  • there are no restrictions on reserved bits You can reserve reserved bits or not, and the reserved bits can be arbitrarily set as needed.
  • the present invention does not impose any restrictions on the definition of the MAC CE payload portion.
  • the reporting mechanism for the UE may be set in advance on the network side and sent to the UE through the base station.
  • the network side may preset a preset condition, and when the preset condition is met, the UE reports the indication information or directly reports the channel state information. If the preset information is reported by the UE, the content and the format of the indication information may be preset in advance on the network side.
  • the configuration of the above MAC CE is implemented on the network side.
  • the network side also needs to configure the type of channel state measurement for the UE, so that the UE can perform corresponding measurement according to the configured type, and obtain corresponding channel state information. Possible measurement types are: frequency selective characteristic measurement, full bandwidth CQI measurement, PMI measurement, RANK measurement, and any combination of these, in addition, these measurements can be configured simultaneously Start and stop of the type, you can also independently configure the start and stop of each measurement type.
  • reporting mechanism can be adjusted according to the policy requirements of the network operation, and the embodiment of the present invention does not impose any restrictions.
  • Several possible configurations are given below, however, they are merely examples and are not intended to limit the invention.
  • subband division and preset conditions may be pre-configured.
  • the sub-band allocation may use the current common sub-band division manner, or may define a new sub-band, and the embodiment of the present invention does not impose any limitation.
  • the preset condition can be expressed by setting a threshold value, for example, setting a threshold value of 1 or a threshold value of 2 (the two thresholds may be the same or different), and if the CQI variance on each sub-band exceeds the threshold value 1, the current channel is indicated.
  • the state is frequency selective, and can trigger the UE to report; if the CQI variance on each sub-band is lower than the threshold 2, it indicates that the current channel state has no frequency selectivity, and may also trigger the UE to report; to notify the base station of the channel state change, so that The base station determines whether to acquire channel state information according to a change in channel state.
  • the condition that the triggering UE reports is also included in the case of being equal to the threshold.
  • the variance calculation here can also be used in other ways. For example, the determination of the frequency selectivity can be based on the measurement of other channel state information, in addition to the CQI, for example, the variance of each sub-band is used to calculate the variance.
  • the indication information MAC CE shown in Table 1 if the CQI variance on each sub-band exceeds the threshold value 1, it indicates that the current channel state has frequency selectivity. At this time, the lower 3 bits of the indication information MAC CE are taken as " 0". The level information (high 5 bits) may not be set, and the indication information is reported to the base station, and the base station may know the type of the channel state change, thereby acquiring channel type information of the corresponding type according to the type. Similarly, when the CQI variance of each sub-band is lower than the threshold 2, it indicates that the current channel state has no frequency selectivity, and the lower 3 bits of the indication information MAC CE are "1". When the indication information is reported to the base station, the base station can know that the channel state changes to the frequency-free selectivity, so that the channel state information does not need to be acquired.
  • level information For example, according to the CQI value of 0 to 15, divide it into multiple levels, taking 3 as an example, 0 to 5 as a level, 5 to 10 as a level, 10 to 15 is a level, and the level information is reported to the base station, so that the base station can preset a policy, and when the channel state change reaches or exceeds level 2, the corresponding channel state information is obtained from the UE.
  • the above is only an example, and two or more ranks may be divided, and the rank division does not require an average interval division (the above is only a brief description), for example, 1 to 6 may be divided into one rank, 7 The division into 9 is divided into one level, and 10 to 15 is divided into one level, which is similar to the granularity level reported by the current CQI.
  • the CQI comparison benchmark can be the last reported value, or it can be explicitly configured in signaling (such as the configuration information described above).
  • the type information of the MAC CE takes a value of 2, and the level information is determined according to the reached threshold value.
  • the UE reports the indication information to the base station, and the base station can know the level of the full bandwidth CQI change, and accordingly determines whether to obtain the full bandwidth CQI information.
  • the comparison reference can be the last reported value, or it can be explicitly configured in signaling (such as the configuration information described above).
  • the MAC CE is used as an example. If the PMI changes, the type information of the MAC CE is 3; if the RANK changes, the type information of the MAC CE is 4. At this time, the level information may not be set. As long as the PMI and the RANK change, the UE reports the indication information to the base station, and the base station can know that the PMI and the RANK change, and accordingly obtain the PMI and RANK information from the UE. Example.
  • the embodiments of the present invention are applicable to base stations or UEs in various communication systems.
  • FIG. 5 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • the UE includes an obtaining unit 510, a determining unit 520, and a reporting unit 530.
  • the obtaining unit 510 is configured to acquire channel state information
  • the determining unit 520 is configured to use the acquiring unit.
  • the channel state information obtained by the 510 determines whether the channel state meets the preset condition.
  • the reporting unit 530 is configured to report the indication information or the channel state information to the base station when the channel state meets the preset condition.
  • the obtaining unit 510 acquires channel state information by channel state measurement, and the channel state measurement may include one or more.
  • the obtaining unit 510 may perform one or more channel state measurements by default, or may configure the channel state measurement type for the UE by the network side. If configured by the network side, the UE needs to receive channel state measurement type information configured on the network side.
  • the UE further includes a receiving unit 540, configured to receive configuration information sent by the base station, where the configuration information includes a channel state measurement type, and the acquiring unit 510 further acquires channel state information according to the channel state measurement type. .
  • the preset conditions can be configured according to the policy requirements in advance, and the preset conditions are different depending on the type of channel status information.
  • the preset condition may be preset to the network side, and sent by the base station to the receiving unit 540 of the UE through the above configuration information; or may be preset in the UE side and stored in the storage unit 550 of the UE.
  • the obtaining unit 510 and the determining unit 520 may be embedded in the processor in hardware or in a software form, and the processor may be a central processing unit (CPU) or a single chip microcomputer.
  • the reporting unit 530 can be a transmitter or a transceiver; the receiving unit 540 can be a receiver or a transceiver, and both the reporting unit 530 and the receiving unit 540 can be coupled to the processor and can be integrated as a transceiver.
  • the storage unit 550 can be a memory, and the memory 550 can be embedded in the processor of the UE or can be independent of the processor.
  • the preset condition may also exist for the parameter in the determining unit 520, and when the determining unit 520 exists in the form of software, it may also be stored in the memory 550.
  • FIG. 7 is a schematic structural diagram of another UE according to an embodiment of the present invention.
  • the UE includes a receiver 710, a transmitter 720, a memory 730, and a processor 740 coupled to the receiver 710, the transmitter 720, and the memory 730, respectively.
  • the receiver 710 and the transmitter 720 can be integrated to form a transceiver.
  • the UE may also be a common component such as an antenna, a baseband processing component, a medium RF processing component, an input/output device, etc., where the embodiment of the present invention is No more restrictions.
  • the memory 730 stores a set of program codes, and the processor 740 calls the program code stored in the memory 730 for performing the following operations:
  • the UE shown in FIG. 5 to FIG. 7 may be used to implement any of the methods provided by the foregoing method embodiments, and the foregoing descriptions of the indication information, configuration information, channel state measurement type, and the like are the same as the foregoing method. The embodiment is not described here.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station includes a receiving unit 810 and a scheduling unit 820.
  • the receiving unit 810 is configured to receive the channel state information that is currently acquired by the UE, and the channel state information that is currently acquired by the UE is reported by the UE when the channel state meets the preset condition
  • the scheduling unit 820 is configured to receive according to the receiving unit 810.
  • the channel state information currently acquired by the UE performs radio resource scheduling.
  • the base station includes an obtaining unit 910 and a scheduling unit 920, where the acquiring unit 910 is configured to receive indication information reported by the UE, and acquire channel state information from the UE according to the indication information, where The indication information is reported by the UE when the channel state meets the preset condition.
  • the scheduling unit 920 is configured to perform radio resource scheduling according to channel state information acquired by the acquiring unit 910 from the UE.
  • the indication information may include type information of the channel state change, and the obtaining unit 910 is configured to acquire, from the UE, channel state information corresponding to the type information of the channel state change.
  • the indication information shown in Table 1 as an example, if the type information (that is, the lower 3 bits) is 2, the full bandwidth CQI changes. In this case, the obtaining unit 910 needs to obtain full bandwidth CQI information from the UE; If the value of the information is 3, the PMI changes. In this case, the acquiring unit 910 needs to acquire PMI information from the UE.
  • the indication information may further include level information of the channel state change, and the level information of the channel state change corresponds to the type information of the channel state change, and the obtaining unit 910 uses the level information of the channel state change to meet the preset level requirement.
  • the channel state information corresponding to the type information of the channel state change is acquired from the UE. Compared with the type information including only channel state changes, it can further reduce the waste of air interface resources, especially for frequency selective and full bandwidth CQI measurement. For example, a plurality of degree of change levels may be set according to the value of the CQI, and channel state information is acquired from the UE when a certain level requirement is met.
  • the base station may further include a sending unit 101, configured to
  • the UE sends configuration information, where the configuration information includes a channel state measurement type, where the channel state measurement type is used to instruct the UE to perform channel state measurement of a corresponding type to obtain channel state information of a corresponding type, thereby determining a channel according to the acquired channel state information. Whether the state satisfies the preset condition.
  • the configuration information may further include a preset condition or an indication information configuration.
  • the above receiving unit 810 can be a receiver or a transceiver, a sending unit
  • the 101 can be a transmitter or a transceiver, and the receiving unit 810 and the transmitting unit 101 can be integrated to form a transceiver.
  • the above scheduling unit 820 and the obtaining unit 910 may be embedded in the processor of the base station in hardware or software.
  • the processor can be a central processing unit (CPU) or a microcontroller.
  • FIG. 12 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the base station includes a receiver 121, a transmitter 122, a memory 123, and a processor 124 coupled to the receiver 121, the transmitter 122, and the memory 123, respectively.
  • the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • the embodiment of the present invention is not limited herein.
  • a set of program codes in the memory 123, and the processor 124 is configured to call the program code stored in the memory 123 for performing the following operations:
  • Radio resource scheduling including:
  • Receiving the indication information acquiring channel state information from the UE according to the indication information, and performing radio resource scheduling according to the acquired channel state information;
  • the radio resource scheduling is performed according to the channel state information currently acquired by the UE.
  • the base station shown in FIG. 8 to FIG. 12 may be used to implement any of the methods provided by the foregoing method embodiments, and the descriptions of the indication information, configuration information, channel state measurement type, and the like are the same as the above method. The embodiment is not described here.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • the desired program code and any other medium that can be accessed by the computer may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.
  • CD compact disc
  • DVD digital versatile disc
  • a floppy disk a floppy disk
  • Blu-ray disc wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data.

Landscapes

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

Abstract

本发明公开了一种通信方法、用户设备(UE)、基站与通信系统,该方法包括:UE获取信道状态信息;UE根据获取的所述信道状态信息,确定信道状态是否满足预设条件;当所述信道状态满足预设条件时,UE向基站上报指示信息或所述信道状态信息。可见,UE在测量得到信道状态信息后,根据信道状态信息确定当前信道状态是否满足预设条件,当满足预设条件时才向基站上报,进而可以减少不必要的上报,有效节约空口资源。

Description

通信方法、 用户设备、 基站与通信系统
技术领域 本发明实施例涉及通信领域, 尤其涉及一种通信方法、 用户设备、 基 站与通信系统。 背景技术 通信系统中, 无线资源的使用由网络侧的基站控制, 即基站决定用户 设备( user equipment, UE )如何使用空口资源, 例如使用的无线资源块 ( resource block, RB )、调制编码方式( modulation and coding scheme, MCS ) 等。为了有效利用空口资源,基站会根据 UE实际的空口质量进行下行调度, 例如, 当空口质量好时, 使用较高级的 MCS (可以传输更多数据量), 当空 口质量差时, 则使用较低级的 MCS, 以充分利用空口资源。 为了实现这点, 基站需知道当前的空口质量,但下行方向的空口质量只有作为接收方的 UE 才能观测到, 作为发送方的基站无法自行得到。 因此, UE需要把测量到的 信道状态 (例如, 信道质量或信道条件)信息上报给基站, 供基站使用, 作为无线资源调度的依据之一。
目前, UE对信道状态信息的上报机制是由基站配置或触发的, 主要包 括两类上报机制: 一类是在物理上行控制信道 ( hysical uplink control channel , PUCCH ) 上的周期上报机制, 另一类是在物理上行共享信道 ( hysical uplink shared channel , PUSCH )上的非周期上报机制。 例如, 对 于 PUCCH上的周期上报机制, 基站可以通过无线资源控制( radio resource control, RRC )信令配置上报周期等信息; 对于 PUSCH上的非周期上报机 制, 基站可以通过 PDCCH指示 UE上报, 每次 PDCCH指示会触发一次 PUSCH的非周期上报。
然而, 目前的 UE上报机制存在以下问题:
由于 UE的信道状态是随着时间变化的,为准确进行调度,基站需要尽 可能的获得最近时刻的信道状态, 需要 UE比较频繁的上报信道状态信息, 消耗许多宝贵的空口资源, 导致空口资源的浪费。
发明内容 有鉴于此, 本发明实施例提供一种通信方法、 用户设备、 基站与通信 系统, 以减少信道状态信息上报过程中空口资源的消耗。
第一方面, 提供一种通信方法, 包括: 用户设备获取信道状态信息; 所述用户设备根据获取的所述信道状态信息, 确定信道状态是否满足预设 条件; 当所述信道状态满足预设条件时, 所述用户设备向基站上报指示信 息或所述信道状态信息。
在第一方面的第一种可能的实现方式中, 所述指示信息包括信道状态 变化的类型信息, 和 /或, 信道状态变化的等级信息。
在第一方面的第二种可能的实现方式中, 结合第一方面的第一种可能 的实现方式, 所述信道状态变化的类型信息包括以下信息之一或其任意组 合: 频选特性、 全带宽信道质量指示 CQI、 预编码矩阵指示 PMI和信道矩 阵的秩 RANK。
在第一方面的第三种可能的实现方式中, 结合第一方面至第一方面的 第二种可能的实现方式之一, 所述指示信息为媒体接入控制层控制信元 MAC CE , 所述 MAC CE包括标识头。
在第一方面的第四种可能的实现方式中, 结合第一方面的第三种可能 的实现方式, 所述负载部分包括信道状态变化的类型信息, 和 /或, 信道状 态变化的等级信息。
在第一方面的第五种可能的实现方式中, 结合第一方面至第一方面的 第四种可能的实现方式之一, 所述方法还包括: 所述用户设备接收所述基 站发送的配置信息, 所述配置信息包括信道状态测量类型; 所述用户设备 获取信道状态信息包括:所述用户设备根据所述信道状态测量类型获取所述 信道状态信息。
在第一方面的第六种可能的实现方式中, 结合第一方面的第五种可能 的实现方式, 所述信道状态测量类型包括以下类型之一或其任意组合: 频 选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
在第一方面的第七种可能的实现方式中, 结合第一方面的第五种可能 的实现方式, 所述配置信息还包括指示信息配置, 所述用户设备向基站上 报指示信息包括:所述用户设备根据所述指示信息配置上报所述指示信息。
在第一方面的第八种可能的实现方式中, 结合第一方面的第五种可能 的实现方式, 所述预设条件预先设置于网络侧, 且所述配置信息还包括所 述预设条件。
在第一方面的第九种可能的实现方式中, 结合第一方面至第一方面的 第七种可能的实现方式之一, 所述预设条件预先设置于在所述用户设备侧。
第二方面, 提供一种一种通信方法, 包括: 基站接收用户设备上报的 指示信息或所述用户设备当前获取的信道状态信息, 所述指示信息或所述 用户设备当前获取的信道状态信息由所述用户设备在信道状态满足预设条 件时上报; 所述基站进行无线资源调度, 包括: 若所述基站接收所述指示 信息, 所述基站根据所述指示信息从所述用户设备获取信道状态信息, 且 根据获取的信道状态信息进行无线资源调度; 或若所述基站接收所述用户 设备当前获取的信道状态信息, 所述基站根据所述用户设备当前获取的信 道状态信息进行无线资源调度。
在第二方面的第一种可能的实现方式中, 所述指示信息包括信道状态 变化的类型信息, 所述基站根据所述指示信息从所述用户设备获取信道状 态信息包括: 所述基站从所述用户设备获取与所述信道状态变化的类型信 息相应的信道状态信息。
在第二方面的第二种可能的实现方式中, 结合第二方面的第一种可能 的实现方式, 所述指示信息还包括信道状态变化的等级信息, 且所述信道 状态变化的等级信息与所述信道状态变化的类型信息相对应, 所述基站根 据所述指示信息从所述用户设备获取信道状态信息包括: 若所述信道状态 变化的等级信息满足预设等级要求, 所述基站从所述用户设备获取与所述 信道状态变化的类型信息相应的信道状态信息。
在第二方面的第三种可能的实现方式中, 结合第二方面的第一种可能 的实现方式或第二方面的第二种可能的实现方式, 所述信道状态变化的类 型信息包括以下信息之一或其任意组合: 频选特性、 全带宽信道质量指示
CQL 预编码矩阵索引 PMI和信道的秩 RANK。。
在第二方面的第四种可能的实现方式中, 结合第二方面至第二方面的 第三种可能的实现方式之一, 所述指示信息为媒体接入控制层控制信元 MAC CE , 所述 MAC CE包括标识头。
在第二方面的第五种可能的实现方式中, 结合第二方面的第四种可能 的实现方式, 所述 MAC CE还包括负载部分, 所述负载部分包括信道状态 变化的类型信息, 和 /或, 信道状态变化的等级信息。
在第二方面的第六种可能的实现方式中, 结合第二方面至第二方面的 第五种可能的实现方式之一, 所述方法还包括: 所述基站向所述用户设备 发送配置信息, 所述配置信息包括信道状态测量类型, 所述信道状态测量 类型用于指示用户设备获取相应类型的信道状态信息, 以根据获取的信道 状态信息确定信道状态是否满足所述预设条件。
在第二方面的第七种可能的实现方式中, 结合第二方面的第六种可能 的实现方式, 所述信道状态测量类型包括以下类型之一或其任意组合: 频 选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
在第二方面的第八种可能的实现方式中, 结合第二方面的第六种可能 的实现方式, 所述配置信息还包括指示信息配置, 以使得所述用户设备根 据所述指示信息配置上 >¾所述指示信息。 在第二方面的第九种可能的实现方式中, 结合第二方面的第六种可能 的实现方式, 所述预设条件预先设置于网络侧, 且所述配置信息还包括所 述预设条件。
第三方面, 提供用户设备, 包括: 获取单元, 用于获取信道状态信息; 确定单元, 用于根据所述获取单元获取的所述信道状态信息, 确定信道状 态是否满足预设条件; 上报单元, 用于当所述信道状态满足预设条件时, 向基站上报指示信息或所述信道状态信息。
在第三方面的第一种可能的实现方式中, 所述指示信息包括信道状态 变化的类型信息, 和 /或, 信道状态变化的等级信息。
在第三方面的第二种可能的实现方式中, 结合第三方面的第一种可能 的实现方式, 所述信道状态变化的类型信息包括以下信息之一或其任意组 合: 频选特性、 全带宽信道质量指示 CQI、 预编码矩阵指示 PMI和信道矩 阵的秩 RANK。
在第三方面的第三种可能的实现方式中, 结合第三方面至第三方面的 第二种可能的实现方式之一, 所述指示信息为媒体接入控制层控制信元 MAC CE , 所述 MAC CE包括标识头。
在第三方面的第四种可能的实现方式中, 结合第三方面的第三种可能 的实现方式, 所述 MAC CE还包括负载部分, 所述负载部分包括信道状态 变化的类型信息, 和 /或, 信道状态变化的等级信息。
在第三方面的第五种可能的实现方式中, 结合第三方面至第三方面的 第四种可能的实现方式之一, 所述用户设备还包括: 接收单元, 用于接收 所述基站发送的配置信息, 所述配置信息包括信道状态测量类型; 所述获 取单元具体用于根据所述信道状态测量类型获取所述信道状态信息。。
在第三方面的第六种可能的实现方式中, 结合第三方面的第五种可能 的实现方式, 所述信道状态测量类型包括以下类型之一或其任意组合: 频 选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。 在第三方面的第七种可能的实现方式中, 结合第三方面的第五种可能 的实现方式, 所述配置信息还包括指示信息配置, 且所述上报单元具体用 于才艮据所述指示信息配置上 "^所述指示信息。
在第一方面的第八种可能的实现方式中, 结合第三方面的第五种可能 的实现方式, 所述预设条件预先设置于网络侧, 且所述配置信息还包括所 述预设条件。
在第一方面的第九种可能的实现方式中, 结合第三方面至第三方面的 第七种可能的实现方式之一, 所述用户设备还包括: 存储单元, 用于存储 所述预设条件。
第四方面, 提供一种用户设备, 包括接收机、 发射机、 存储器以及分 别与所述接收机、 发射机和存储器连接的处理器, 所述存储器存储一组程 序代码, 所述处理器调用所述存储器存储的程序代码, 用于执行第一方面 至第一方面第九种可能的实现方式所述的任一种方法。
第五方面, 提供一种基站, 包括接收单元或获取单元, 和调度单元, 其中所述接收单元, 用于接收用户设备上报的所述用户设备当前获取的信 道状态信息, 所述信道状态信息由所述用户设备在信道状态满足预设条件 时上报; 所述获取单元, 用于接收所述用户设备上报的指示信息并根据所 述指示信息从所述用户设备获取信道状态信息, 所述指示信息由所述用户 设备在信道状态满足预设条件时上报; 调度单元, 用于根据所述接收单元 接收到的所述用户设备当前获取的信道状态信息或根据获取单元从所述用 户设备获取的信道状态信息进行无线资源调度。
在第五方面的第一种可能的实现方式中, 所述指示信息包括信道状态 变化的类型信息, 所述获取单元, 具体用于从所述用户设备获取与所述信 道状态变化的类型信息相应的信道状态信息。
在第五方面的第二种可能的实现方式中, 结合第五方面的第一种可能 的实现方式, 所述指示信息还包括信道状态变化的等级信息, 且所述信道 状态变化的等级信息与所述信道状态变化的类型信息相对应, 所述获取单 元具体用于当所述信道状态变化的等级信息满足预设等级要求时用于从所 述用户设备获取与所述信道状态变化的类型信息相应的信道状态信息。
在第五方面的第三种可能的实现方式中, 结合第五方面的第一种可能 的实现方式或第五方面的第二种可能的实现方式, 所述信道状态变化的类 型信息包括以下信息之一或其任意组合: 频选特性、 全带宽信道质量指示
CQL 预编码矩阵索引 PMI和信道的秩 RANK。。
在第五方面的第四种可能的实现方式中, 结合第五方面至第五方面的 第三种可能的实现方式之一, 所述指示信息为媒体接入控制层控制信元 MAC CE , 所述 MAC CE包括标识头。
在第五方面的第五种可能的实现方式中, 结合第五方面的第四种可能 的实现方式, 所述 MAC CE还包括负载部分, 所述负载部分包括信道状态 变化的类型信息, 和 /或, 信道状态变化的等级信息。
在第五方面的第六种可能的实现方式中, 结合第五方面至第五方面的 第五种可能的实现方式之一, 所述的基站, 还包括: 发送单元, 用于向所 述用户设备发送配置信息, 所述配置信息包括信道状态测量类型, 所述信 道状态测量类型用于指示用户设备获取相应类型的信道状态信息, 以根据 获取的信道状态信息确定信道状态是否满足所述预设条件。
在第五方面的第七种可能的实现方式中, 结合第五方面的第六种可能 的实现方式, 所述信道状态测量类型包括以下类型之一或其任意组合: 频 选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
在第五方面的第八种可能的实现方式中, 结合第五方面的第六种可能 的实现方式, 所述配置信息还包括指示信息配置, 以使得所述用户设备根 据所述指示信息配置上 >¾所述指示信息。
在第五方面的第九种可能的实现方式中, 结合第五方面的第六种可能 的实现方式, 所述预设条件预先设置于网络侧, 且所述配置信息还包括所 述预设条件。
第六方面, 提供一种基站, 包括接收机、 发射机、 存储器以及分别与 所述接收机、 发射机和存储器连接的处理器, 所述存储器存储一组程序代 码, 所述处理器调用所述存储器存储的程序代码, 用于第二方面至第二方 面第九种可能的实现方式所述的任一种方法。
第七方面, 提供一种计算机程序产品, 包括计算机可读介质, 该可读 介质包括一组程序代码, 用于执行第一方面至第一方面第九种可能的实现 方式所述的任一种通信方法。
第八方面, 提供一种计算机程序产品, 包括计算机可读介质, 该可读 介质包括一组程序代码, 用于执行第二方面至第二方面第九种可能的实现 方式所述的任一种通信方法。
第九方面, 提供一种通信系统, 包括: 第三方面、 第三方面任一种可 能的实现方式、 或第四方面所述的用户设备, 以及与该用户设备通信的第 五方面、 第五方面任一种可能的实现方式, 或第六方面所述的基站。
通过上述方案, UE在测量得到信道状态信息后, 根据信道状态信息确 定当前信道状态是否满足预设条件, 当满足预设条件时才向基站上报, 进 而可以减少不必要的上报, 有效节约空口资源。
附图说明 图 1为本发明实施例所提供的一种通信方法的流程图;
图 2为本发明实施例所提供的另一种通信方法的流程图;
图 3为本发明实施例所提供的又一种通信方法的流程图;
图 4为本发明实施例所提供的又一种通信方法的流程图;
图 5为本发明实施例所提供的一种 UE的结构示意图;
图 6为本发明实施例所提供的另一种 UE的结构示意图; 图 7为本发明实施例所提供的又一种 UE的结构示意图;
图 8为本发明实施例所提供的一种基站的结构示意图;
图 9为本发明实施例所提供的另一种基站的结构示意图;
图 10为本发明实施例所提供的又一种基站的结构示意图;
图 11为本发明实施例所提供的又一种基站的结构示意图;
图 12为本发明实施例所提供的又一种基站的结构示意图。
具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动的前 提下所获得的所有其它实施例 , 都属于本发明保护的范围。
在某些实施例中, 对于熟知的方法、 接口、 设备信令技术未进行具体 描述, 以免因不必要的细节使得本发明模糊。 再者, 某些附图中显示了各 单独的功能模块。 本领域的技术人员可以理解, 这些功能可以釆用如下方 式实现: 单独的硬件电路, 配合适当编程的数字微处理器或通用计算机运 行的软件、专用集成电路 ( ASIC )和 /或一个或多个数字信号处理器 ( DSP )。
本申请中的基站为无线通信系统中的接入网网元, 不限于无线接入制 式, 例如可以为长期演进 ( long term evolution , LTE ) 或高级长期演进 ( LTE- Advanced )通信系统中演进型节点 B ( evolved node B , eNB )、 可以 为 3G通信系统中的节点 B ( node B )、 也可以为全球移动通信系统( global system for mobile communication, GSM ) 中的基站收发台 ( base transceiver station, BTS )。
目前, 基站需要了解下行信道的状态才可以准确的调度无线资源, 故 需要 UE周期上报信道状态信息, 即使两次上报的内容相同或相近, UE也 仍然需要上报, 这就造成空口资源的浪费。
另外, LTE或 LTE-A系统支持的带宽很大, 单小区最大可达 20M。 对 同一个 UE而言, 在如此宽的频带范围内, 信道状态往往不是完全相同的: 例如, 有些频带上的信道状态较好, 有些频带上的信道状态较差。 对不同 UE而言, 由于不同 UE的信道状态不同, 可能有些 UE在频带 A上信道状 态好, 但在频带 B上较差; 有些 UE在频带 B上信道状态好, 但在频带 A 上较差。 为充分利用无线资源, 可以在 UE调度时让 UE优先使用信道状态 较好的频带, 提高全系统的资源效率, 这种优先使用信道状态好的频带的 调度方式即为频率选择调度。 目前, 为了支持这种频率选择调度, UE需要 周期上报不同频带的信道状态信息, 供 eNB使用。 即使目前信道状态不需 要进行频率选择调度, UE也仍然需要上报, 这就造成空口资源的浪费。
本发明实施例充分考虑以上问题, 且考虑到下行信道状态信息的获取 是在 UE侧, 而使用者却是基站。 如果把信道状态信息的利用部分转移到 UE侧, 从而使得 UE只上报对于基站资源调度有用的信息, 便可以有效的 减少空口资源的消耗。 例如, UE在测量得到信道状态信息后, 可以判断信 道状态是否需要进行频率选择调度或信道状态在频率选择调度上的需求是 否有变化, 如果是, 才触发向基站的上报, 进而有效节约空口资源。 再如, UE在测量得到信道状态信息后, 对比之前上报给基站的信道状态信息, 当 信道状态变化较大的时, 才触发向基站的上报, 进而有效节约空口资源。
关于信道状态是否需要进行频率选择调度或信道状态变化到何种程度 才触发向基站的上报, 可以在网络侧预先根据策略需求进行配置, 所配置 的信息称之为预设条件 (也称之为触发条件)。 当然, 预设条件也可以在 UE侧预定义, 并保存在 UE中。 且根据信道状态信息的类型不同, 所配置 的预设条件也不同。 本发明实施例不做任何限制。
以下将信道状态需要进行频率选择调度的状态称之为有频率选择性, 将信道状态无需频率选择调度的状态称之为无频率选择性。 频率选择性是 指: 系统带宽可以划分为多个子频带的情况下, 各个子频带的信道状态不 同, 可以优先选择信道状态好的子频带进行调度的一种特性。
另外, UE 向基站的上报可以是指示信息, 以指示基站 获取信道状态 信息; 也可以是当前测量得到的信道状态信息; 即 UE可以上报指示信息, 也可以直接上报当前测量得到的信道状态信息。
下面结合附图对本发明实施例中的技术方案进行清楚、 完整地描述。 请参考图 1 , 其为本发明实施例所提供的一种通信方法的流程图, 如图 1所示, 该方法包括如下步骤:
S110: UE获取信道状态信息;
S120: UE根据获取的信道状态信息,确定信道状态是否满足预设条件; 当信道状态满足预设条件时, 执行步骤 S130; 否则, UE不上报。
S130: UE向基站上报指示信息或信道状态信息。
可见, 在以上通信方法中, UE在测量得到信道状态信息后, 根据信道 状态信息确定当前信道状态是否满足预设条件, 当满足预设条件时才向基 站上报, 进而可以减少不必要的上报, 有效节约空口资源。
在以上步骤 S110中, UE获取信道状态信息是通过信道状态测量来实 现的, 而信道状态测量可以包括一种或多种, 例如: 频选特性测量、 全带 宽信道质量指示 (channel quality indication, CQI )测量、 预编码矩阵指示 ( recoding matrix indicator, PMI )测量和信道矩阵的秩( RANK, 即信道 矩阵的特征值的个数)测量等的一种或多种。 在实现上, 可以默认 UE进行 一种或多种信道状态测量, 也可以由网络侧为 UE配置信道状态测量类型。 请参考图 2, 如果由网络侧进行配置, 则在以上步骤 S110之前, 该方法还 包括:
S100: UE接收基站发送的配置信息, 所述配置信息包括信道状态测量 类型。 则在以上步骤 S110中, UE进一步才艮据配置信息中的信道状态测量 类型获取相应类型的信道状态信息。
其中, 所述信道状态测量类型包括以下类型之一或其任意组合: 频选 特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
在以上步骤 S120中, 预设条件预先根据策略需求进行配置, 且根据信 道状态信息的类型不同, 所配置的预设条件也不同。 另外, 预设条件可以 预先设置于网络侧,也可以预先设置于 UE侧,本发明实施例不做任何限制。 当预设条件条件预先设置于网络侧时, 基站可以通过以上步骤 S100中的配 置信息发送给 UE, 即配置信息还包括预设条件。
在以上步骤 S130中, UE上报的信息可以是指示信息, 也可以是获取 的信道状态信息; 且可以预先定义指示信息的内容和形式。 在实现上, 可 以默认 UE利用这种预先定义的内容和形式上报。也可以在网络侧预先定义 指示信息上报的内容和形式, 本发明实施例不做任何限制。 当在网络侧预 先定义指示信息上报的内容和形式时, 基站可以通过以上步骤 S100中的配 置信息发送给 UE, 即配置信息还包括指示信息配置, 该指示信息配置用于 指示 UE上报的指示信息的内容和形式。
例如预先定义指示信息包括信道状态变化的类型信息、 信道状态变化 的等级信息等。 如此, 基站可以根据指示信息确定从 UE 获取的信道状态 信息的类型, 从而减少不必要类型的信道状态信息的上报, 进一步节省空 口资源; 基站也可以根据信道状态变化的等级, 进一步判断是否从 UE 获 取信道状态信息, 进一步节省空口资源。
UE在信道状态满足预设条件时,会上报给基站指示信息或直接上报当 前获取的信道状态信息。 当 UE直接上报当前获取的信道状态信息时,基站 会根据 UE上报的信道状态信息进行无线资源调度。当 UE上报指示信息时, 基站会根据指示信息判断是否需要 获取信道状态信息以及 获取的信道状 态信息的类型, 进一步减少不必要的信道状态信息上报, 从而节约更多的 空口资源。 相应于此, 本发明实施例还提供一种通信方法的流程图, 如图 3 所示, 该方法的执行主体为基站, 包括如下步骤:
S310: 基站接收 UE上报的指示信息或 UE当前获取的信道状态信息, 该指示信息或 UE当前获取的信道状态信息由 UE在信道状态满足预设条件 时上才艮;
若基站接收 UE上报的指示信息, 则执行以下步骤 S320和 S330; 若基 站接收 UE上报的 UE当前获取的信道状态信息, 则执行以下步骤 S300。
S320: 基站根据指示信息从 UE获取信道状态信息;
S330: 基站根据步骤 S320中获取的信道状态信息进行无线资源调度。
S340: 基站根据步骤 S310中接收的 UE当前获取的信道状态信息进行 无线资源调度。
以上指示信息可以包括信道状态变化的类型信息、 还可以包括对应每 个信道状态变化类型的等级信息等。
当指示信息包括信道状态变化的类型信息时, 基站可以根据该信道状 态变化的类型信息获取相应类型的信道状态信息, 进一步减少不必要的信 道状态信息的上报, 节约空口资源。 例如, UE 获取的信道状态信息包括 CQL PMI、 RANK等; 根据 CQI, UE发现信道状态的频率选择性未发生 变化, 仍然处于无频率选择性状态, 但 PMI和 RANK发生了变化; 为此通 过指示信息将目前的信道状态告知基站, 基站通过指示信息获知信道频率 选择性未变化, 而 PMI和 RANK发生了变化, 故根据指示信息从 UE获取 PMI和 RANK信息, 而无需获取 CQI信息。 如此 , 可以进一步减少 UE所 需上报的信道状态信息, 进一步节约空口资源。
当指示信息还包括对应每个信道状态变化类型的等级信息时, 基站可 以预先设定策略, 当某个信道状态变化的等级信息满足预设等级要求时, 基站才从 UE获取与满足等级要求的信道状态变化类型信息相应的信道状 态信息。 例如, 为 CQI的变化预设多个等级, 且预设其变化达到某个等级 及以上时才获取 CQI信息。 如此, 可以进一步减少 UE所需上报的信道状 态信息, 进一步节约空口资源。
另外, 在以上步骤 S310中, 信道状态是否满足预设条件是由 UE根据 测量得到的信道状态信息进行判断的。 UE进行哪些类型的信道状态信息测 量可以由网络侧配置, 并通过基站发送给 UE。 请参考图 4, 如果由网络侧 进行配置, 则在以上步骤 S310之前, 该方法还包括:
S300:基站向 UE发送配置信息,所述配置信息包括信道状态测量类型, 所述信道状态测量类型用于指示 UE获取相应类型的信道状态信息,以根据 获取的信道状态信息确定信道状态是否满足预设条件。
同图 2 所示实施例, 该信道状态测量类型包括以下类型之一或其任意 组合: 频选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。 且, 该 配置信息还可以包括预设条件, 也可以包括指示信息配置。 在此不再赘述。
在以上步骤 S300中, 基站可以通过 RRC信令或媒体接入控制层控制 信元( MAC control element, MAC CE ) 向 UE发送配置信息。 例如, 可以 扩展现有的 RRC信令(例如, RRC重配置信令 ), 也可以增加新的 RRC信 令或定义新的 MAC CE; 从而通过 RRC信令或 MAC CE将预设条件通知 UE。
以上信道状态信息可以包括以下信息之一或其任意组合: CQI、信号与 干扰力口噪声比 ( signal to interference plus noise ratio, SINR )、 PMI、和 RANK 等。 本发明实施例不做任何限制。
在一实施例中, 可以定义一种 MAC CE, 作为以上指示信息。 该 MAC CE的作用在于告知基站信道状态变化的情况, 以便于基站可以根据该指示 信息确定是否需要进一步获取详细的信道状态信息。 当然, 对于信道状态 变化的情况可以通过不同信息来体现, 对于变化的信息的通知可以简单也 可以更为复杂, 具体可以通过对 MAC CE的定义来实现。
例如, 可以定义 MAC CE的头为 MAC CE的标识( ID ), 且将负载部 分的长度设置为 "0" ; 此时, 该 MAC CE用于触发基站获取全部的信道状 态信息。 可以将 MAC CE的负载做不同详细程度的定义, 以反映信道状态 变化的大致情况, 如果基站根据 MAC CE反映的情况, 判断需要进一步获 取更加详细的信道状态信息, 则触发 UE上报信道状态信息。 例如, MAC CE的负载部分可以包括信道状态变化的类型信息(以下简称类型信息)或 信道状态变化的等级信息(以下简称等级信息), 也可以既包括类型信息也 包括等级信息; 其中类型信息表明了信道状态变化的类型, 等级信息表明 了信道状态变化的程度。 且在指示信息既包括类型信息也包括等级信息时, 可以设置类型信息与等级信息的对应关系。
为了对该 MAC CE的定义更加清楚易懂,表 1给出了一个具体的实例,
Figure imgf000016_0001
从表 1可以看出, 该 MAC CE的负载部分包括类型信息 (低 3位)和 等级信息(高 5位)。 其中, 类型信息可以包括频选特性、全带宽 CQI、 PMI 和 RANK; 其中保留位可以便于以后扩展更多的类型信息。 例如, 当低 3 位取值为 "0" 时, 表明信道状态从无频选特性变化为有频选特性, 此时基 站可以根据该信息判断信道有频选特性, 从而触发 UE上报信道状态信息。 当低 3为取值为 "1" 时, 表明信道状态从有频选特性变化为无频选特性, 此处,基站可以根据该信息判断信道无频选特性,从而无需 UE上报信道状 态信息。 其它与之类似, 当低 3为取值为 "4" 时, RANK变化, 则基站可 以据此触发 UE上报信道状态信息。等级信息可以包括多个等级,具体可以 在网络侧预先根据策略需求进行配置。
需要说明的是, 表 1只是示例, 并不用于限定本发明。 关于 MAC CE 的定义可以有多种组合方式。 例如, 可以针对每个类型的信道状态信息分 别设置一个 MAC CE, 此时只需要增加类型标识即可; 可以如表 1将多个 类型的信道状态信息设置在一个 MAC CE中; 也可以针对某些类型的信道 状态信息设置一个 MAC CE, 另一些类型的信道状态信息设置再设置一个 MAC CE; 本发明实施例不做任何限制。 再如, MAC CE的负载部分可以仅 包括类型信息或等级信息, 也可以同时包括类型信息和等级信息 (如表 1 所示)。 另外, 本发明实施例也不限制类型信息和等级信息所占的位数以及 位置, 例如 MAC CE的负载长度为 m ( m为正整数 ), 类型信息可以位于低 n位(n为小于等于 m的正整数), 等级信息可以位于高 m-n位; 或者等级 信息可以位于低 n位(n为小于等于 m的正整数), 类型信息可以位于高 m-n位。 另外, 对于保留位也不做任何限制, 可以预留保留位, 也可以不预 留, 预留的位数也可以根据需要任意设定。 总之, 本发明对 MAC CE负载 部分的定义不做任何限制。
另外, 关于 UE的上报机制可以预先在网络侧设置, 并通过基站发送给 UE。 例如, 网络侧可以预先设置预设条件, 以及满足预设条件时 UE上报 指示信息还是直接上报信道状态信息。如果预设 UE上报指示信息,指示信 息的上报内容和形式也可以在网络侧预先预先设置, 例如, 在网络侧实现 以上 MAC CE的配置。 当然, 网络侧也需要为 UE配置信道状态测量的类 型,如此 UE可以根据配置的类型进行相应的测量,获取到相应的信道状态 信息。 可能配置的测量类型有: 频选特性测量、 全带宽 CQI测量、 PMI测 量、 RANK 测量、 以及这几种的任意组合, 此外, 可以同时配置这些测量 类型的启动和停止, 也可以独立配置每个测量类型的启动和停止。
关于上报机制的定义可以根据网络运营的策略需求而进行调整, 本发 明实施例不做任何限制。 以下给出几种可能的配置情况, 然而其仅为举例, 并非用于限制本发明。
第一、 对频选特性, 可以预先配置子频带划分和预设条件。 子频带划 分可以釆用当前的常见的子频带划分方式, 也可以定义新的子频带, 本发 明实施例不做任何限制。 预设条件可以通过设置阔值来体现, 例如, 设置 阔值 1或阔值 2 (这两个阔值可以相同或不同 ), 如果各个子频带上的 CQI 方差超过阔值 1 , 则说明当前信道状态有频率选择性, 可以触发 UE上报; 如各个子频带上的 CQI方差低于阔值 2 , 则说明当前信道状态无频率选择 性, 也可以触发 UE上报; 以通知基站信道状态的变化, 以便基站根据信道 状态的变化, 决定是否获取信道状态信息。 另外, 以上触发 UE上报的条件 也可以包括等于阔值的情况。 这里的方差计算也可以用其它方式, 例如计 对于频率选择性的判断除了以 CQI为依据外, 也可以以其它信道状态信息 的测量为依据, 例如, 用各个子频带的 SINR来计算方差。
以表 1所示的指示信息 MAC CE为例, 如果各个子频带上的 CQI方差 超过阔值 1 , 则说明当前信道状态有频率选择性, 此时指示信息 MAC CE 的低 3位取值为 "0"。 可以不设置等级信息(高 5位), 将该指示信息上报 给基站, 基站便可以知道信道状态变化的类型, 从而根据该类型获取相应 类型的信道状态信息。 同样的, 当各个子频带上的 CQI方差低于阔值 2, 则说明当前信道状态无频率选择性, 此时指示信息 MAC CE的低 3位取值 为 "1"。 将该指示信息上报给基站, 基站便可以知道信道状态变化为无频 率选择性, 从而可以无需获取信道状态信息。
当然, 也可以设置等级信息, 例如根据 CQI的取值为 0到 15 , 将其划 分为多个等级,以 3个为例, 0至 5为一个等级, 5至 10为一个等级, 10到 15为一个等级, 并将这个等级信息上报给基站, 如此基站可以预先设定策 略, 当信道状态的变化达到或高于等级 2时, 才从 UE获取相应的信道状态 信息。 关于等级的划分, 以上仅为举例, 可以划分 2个或更多的等级, 且 等级划分也不需要平均间隔划分(以上仅为简单说明), 例如, 可以将 1到 6划分为一个等级、 7到 9划分为一个等级、 10到 15划分为一个等级, 这 与当前 CQI上报的粒度等级相似。
第二、 对全带宽 CQI变化, 定义 CQI变化的级数阔值, 如果变化量超 过阔值则触发上报。 CQI 的对比基准可以是上一次上报值, 也可以在信令 中 (例如以上所述的配置信息) 明确配置。
以表 1所示的指示信息 MAC CE为例, 如果全带宽 CQI变化, 此时该 MAC CE的类型信息取值为 2, 且等级信息根据达到的级数阔值而确定。
UE将该指示信息上报给基站,基站便可以知道全带宽 CQI变化的等级, 并 据此决定是否获取全带宽 CQI信息。
第三、 对 PMI变化和 RANK变化, 有变化即触发上报, 可以不用定义 阔值。 对比基准可以是上一次上报值, 也可以在信令(例如以上所述的配 置信息) 中明确配置。
以表 1所示的指示信息 MAC CE为例,如果 PMI变化,此时该 MAC CE 的类型信息取值为 3; 如果 RANK变化, 此时该 MAC CE的类型信息取值 为 4。 此时, 可以不设置等级信息, 只要 PMI和 RANK有变化, UE便将 该指示信息上报给基站, 基站便可以知道 PMI和 RANK有变化, 并据此从 UE获取 PMI和 RANK信息。 实施例。 本发明实施例可应用于各种通信系统中的基站或者 UE。
请参考图 5, 其为本发明实施例所提供的一种 UE的结构示意图。 如图 所示, 该 UE包括获取单元 510、 确定单元 520和上报单元 530。 其中, 获 取单元 510用于用于获取信道状态信息; 确定单元 520用于根据获取单元 510获取的信道状态信息, 确定信道状态是否满足预设条件; 上报单元 530 用于当信道状态满足预设条件时, 向基站上报指示信息或信道状态信息。
获取单元 510获取信道状态信息是通过信道状态测量来实现的, 而信 道状态测量可以包括一种或多种。 获取单元 510 可以默认进行一种或多种 信道状态测量,也可以由网络侧为 UE配置信道状态测量类型。如果由网络 侧配置, UE需要接收网络侧配置的信道状态测量类型信息。 请继续参考图 6, 此时, UE还包括接收单元 540, 用于接收基站发送的配置信息, 该配置 信息包括信道状态测量类型, 且获取单元 510进一步根据所述信道状态测 量类型获取信道状态信息。
请继续参考图 6, 预设条件可以预先根据策略需求进行配置, 且根据信 道状态信息的类型不同, 所配置的预设条件也不同。 另外, 预设条件可以 预先设置于网络侧, 由基站通过以上配置信息发送给 UE的接收单元 540; 也可以预先设置于 UE侧, 存储于 UE的存储单元 550中。
在硬件实现上, 以上获取单元 510、确定单元 520可以以硬件形式或软 件形式内嵌于处理器中, 该处理器可以为中央处理单元(CPU ), 也可以为 单片机。 上报单元 530可以为发射机或收发机; 接收单元 540可以为接收 机或收发机, 且上报单元 530和接收单元 540均可以与处理器连接, 且可 以集成在一起作为收发机。 另外, 存储单元 550可以为存储器, 且该存储 器 550可以内嵌于 UE的处理器中, 也可以独立于处理器。 另外, 预设条件 也可以为确定单元 520内的参数而存在, 而确定单元 520以软件形式存在 时, 也可以存储于存储器 550中。
请参考图 7 , 其为本发明实施例所提供的又一种 UE的结构示意图。 如 图所示, 该 UE包括接收机 710、 发射机 720、 存储器 730以及分别与所述 接收机 710、发射机 720和存储器 730连接的处理器 740。其中,接收机 710 和发射机 720可以集成在一起构成收发机。 当然, UE还可以天线、 基带处 理部件、 中射频处理部件、 输入输出装置等通用部件, 本发明实施例在此 不再任何限制。
其中, 存储器 730存储一组程序代码, 处理器 740调用存储器 730中 存储的程序代码, 用于执行以下操作:
获取信道状态信息;
根据获取的所述信道状态信息, 确定信道状态是否满足预设条件; 当所述信道状态满足预设条件时, 通过发射机 720 向基站上报指示信 息或所述信道状态信息。
需要说明的是,图 5至图 7所示的 UE可以用于实现以上方法实施例所 提供的任一种方法, 且关于所述指示信息、 配置信息、 信道状态测量类型 等的描述同以上方法实施例, 在此不再赘述。
请参考图 8, 其为本发明实施例所提供的一种基站的结构示意图。如图 所示, 该基站包括接收单元 810和调度单元 820。 其中, 接收单元 810用于 接收 UE上报的 UE当前获取的信道状态信息, 且该 UE当前获取的信道状 态信息由 UE在信道状态满足预设条件时上报;调度单元 820用于根据接收 单元 810接收的 UE当前获取的信道状态信息进行无线资源调度。
请参考图 9, 在另一实施例中, 该基站包括获取单元 910 和调度单元 920, 其中获取单元 910用于接收 UE上报的指示信息并根据所述指示信息 从 UE获取信道状态信息, 其中, 所述指示信息由 UE在信道状态满足预设 条件时上报。调度单元 920用于根据获取单元 910从 UE获取的信道状态信 息进行无线资源调度。
指示信息可以包括信道状态变化的类型信息, 获取单元 910用于从 UE 获取与该信道状态变化的类型信息相应的信道状态信息。 以表 1 所示的指 示信息为例, 如果其类型信息 (即低 3位)取值为 2, 则说明全带宽 CQI 变化, 此时获取单元 910需要从 UE获取全带宽 CQI信息; 如果其类型信 息取值为 3 , 则说明 PMI变化, 此时获取单元 910需要从 UE获取 PMI信 息。 另外, 该指示信息还可以包括信道状态变化的等级信息, 且该信道状 态变化的等级信息与信道状态变化的类型信息相对应, 获取单元 910在信 道状态变化的等级信息满足预设等级要求时用于从 UE 获取与信道状态变 化的类型信息相应的信道状态信息。 其与仅包括信道状态变化的类型信息 相比,可以进一步减少空口资源的浪费,尤其对于频率选择性与全带宽 CQI 测量。 例如, 可以根据 CQI的取值设置多个变化程度等级, 当满足一定等 级要求时, 才从 UE获取信道状态信息。
请继续参考图 10 和图 11 , 该基站还可以包括发送单元 101 , 用于向
UE发送配置信息, 所述配置信息包括信道状态测量类型, 所述信道状态测 量类型用于指示 UE 进行相应类型的信道状态测量以获取相应类型的信道 状态信息, 从而根据获取的信道状态信息确定信道状态是否满足所述预设 条件。 另外, 该配置信息还可以包括预设条件或者指示信息配置。
在硬件实现上, 以上接收单元 810 可以为接收机或收发机, 发送单元
101可以为发射机或收发机,且接收单元 810和发送单元 101可以集成在一 起构成收发机。 以上调度单元 820和获取单元 910可以以硬件形式或软件 形式内嵌于基站的处理器中。 该处理器可以为中央处理单元(CPU ), 也可 以单片机。
请参考图 12, 其为本发明实施例所提供的又一种基站的结构示意图。 如图所示, 该基站包括接收机 121、 发射机 122、 存储器 123以及分别与所 述接收机 121、 发射机 122和存储器 123连接的处理器 124。 当然, 基站还 可以包括天线、 基带处理部件、 中射频处理部件、 输入输出装置等通用部 件, 本发明实施例在此不再任何限制。
其中, 存储器 123中一组程序代码, 且处理器 124用于调用存储器 123 中存储的程序代码, 用于执行以下操作:
通过接收机 121接收 UE上报的指示信息或 UE当前获取的信道状态信 息; 进行无线资源调度, 包括:
若接收所述指示信息,根据所述指示信息从 UE获取信道状态信息,且 根据获取的信道状态信息进行无线资源调度; 或
若接收 UE当前获取的信道状态信息,根据 UE当前获取的信道状态信 息进行无线资源调度。
需要说明的是, 图 8至图 12所示的基站可以用于实现以上方法实施例 所提供的任一种方法, 且关于所述指示信息、 配置信息、 信道状态测量类 型等的描述同以上方法实施例, 在此不再赘述。
通过以上的实施方式的描述, 所属领域的技术人员可以清楚地了解到 本发明可以用硬件实现, 或固件实现, 或它们的组合方式来实现。 当使用 软件实现时, 可以将上述功能存储在计算机可读介质中或作为计算机可读 介质上的一个或多个指令或代码进行传输。 计算机可读介质包括计算机存 储介质和通信介质, 其中通信介质包括便于从一个地方向另一个地方传送 计算机程序的任何介质。 存储介质可以是计算机能够存取的任何可用介质。 以此为例但不限于: 计算机可读介质可以包括 RAM、 ROM, EEPROM、 CD-ROM或其他光盘存储、 磁盘存储介质或者其他磁存储设备、 或者能够 用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算 机存取的任何其他介质。 此外。 任何连接可以适当的成为计算机可读介质。 例如, 如果软件是使用同轴电缆、 光纤光缆、 双绞线、 数字用户线(DSL ) 或者诸如红外线、 无线电和微波之类的无线技术从网站、 服务器或者其他 远程源传输的, 那么同轴电缆、 光纤光缆、 双绞线、 DSL或者诸如红外线、 无线和微波之类的无线技术包括在所属介质的定影中。 如本发明所使用的, 盘(Disk )和碟(disc ) 包括压缩光碟(CD )、 激光碟、 光碟、 数字通用光 碟(DVD )、 软盘和蓝光光碟, 其中盘通常磁性的复制数据, 而碟则用激光 来光学的复制数据。 上面的组合也应当包括在计算机可读介质的保护范围 之内。 总之, 以上所述仅为本发明技术方案的较佳实施例而已, 并非用于限 定本发明的保护范围。 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权利要求
1、 一种通信方法, 包括:
用户设备获取信道状态信息;
所述用户设备根据获取的所述信道状态信息, 确定信道状态是否满足 预设条件;
当所述信道状态满足预设条件时, 所述用户设备向基站上报指示信息 或所述信道状态信息。
2、 根据权利要求 1所述的方法, 所述指示信息包括信道状态变化的类 型信息, 和 /或, 信道状态变化的等级信息。
3、 根据权利要求 2所述的方法, 所述信道状态变化的类型信息包括以 下信息之一或其任意组合:
频选特性、 全带宽信道质量指示 CQI、 预编码矩阵指示 PMI和信道矩 阵的秩 RANK。
4、 根据权利要求 1至 3任一项所述的方法, 所述指示信息为媒体接入 控制层控制信元 MAC CE, 所述 MAC CE包括标识头。
5、根据权利要求 4所述的方法, 所述 MAC CE还包括负载部分, 所述 负载部分包括信道状态变化的类型信息, 和 /或,信道状态变化的等级信息。
6、 根据权利要求 1至 5任一项所述的方法, 还包括:
所述用户设备接收所述基站发送的配置信息, 所述配置信息包括信道 状态测量类型;
所述用户设备获取信道状态信息包括:
所述用户设备根据所述信道状态测量类型获取所述信道状态信息。
7、 根据权利要求 6所述的方法, 所述信道状态测量类型包括以下类型 之一或其任意组合:
频选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
8、 根据权利要求 6所述的方法, 所述配置信息还包括指示信息配置, 所述用户设备向基站上报指示信息包括:
所述用户设备^ =艮据所述指示信息配置上 所述指示信息。
9、 根据权利要求 6所述的方法, 所述预设条件预先设置于网络侧, 且 所述配置信息还包括所述预设条件。
10、 根据权利要求 1至 8任一项所述的方法, 所述预设条件预先设置 于在所述用户设备侧。
11、 一种通信方法, 包括:
基站接收用户设备上报的指示信息或所述用户设备当前获取的信道状 态信息, 所述指示信息或所述用户设备当前获取的信道状态信息由所述用 户设备在信道状态满足预设条件时上报;
所述基站进行无线资源调度, 包括:
若所述基站接收所述指示信息, 所述基站根据所述指示信息从所 述用户设备获取信道状态信息,且根据获取的信道状态信息进行无线资 源调度; 或
若所述基站接收所述用户设备当前获取的信道状态信息,所述基站 根据所述用户设备当前获取的信道状态信息进行无线资源调度。
12、 根据权利要求 11所述的方法, 所述指示信息包括信道状态变化的 类型信息, 所述基站根据所述指示信息从所述用户设备获取信道状态信息 包括:
所述基站从所述用户设备获取与所述信道状态变化的类型信息相应的 信道状态信息。
13、 根据权利要求 12所述的方法, 所述指示信息还包括信道状态变化 的等级信息, 且所述信道状态变化的等级信息与所述信道状态变化的类型 信息相对应, 所述基站根据所述指示信息从所述用户设备获取信道状态信 息包括:
若所述信道状态变化的等级信息满足预设等级要求, 所述基站从所述 用户设备获取与所述信道状态变化的类型信息相应的信道状态信息。
14、 根据权利要求 12或 13所述的方法, 所述信道状态变化的类型信 息包括以下信息之一或其任意组合:
频选特性、 全带宽信道质量指示 CQI、 预编码矩阵索引 PMI和信道的 秩 RANK。
15、 根据权利要求 11至 14任一项所述的方法, 所述指示信息为媒体 接入控制层控制信元 MAC CE, 所述 MAC CE包括标识头。
16、根据权利要求 15所述的方法, 所述 MAC CE还包括负载部分, 所 述负载部分包括信道状态变化的类型信息, 和 /或, 信道状态变化的等级信 息。
17、 根据权利要求 11至 16任一项所述的方法, 还包括:
所述基站向所述用户设备发送配置信息, 所述配置信息包括信道状态 测量类型, 所述信道状态测量类型用于指示用户设备获取相应类型的信道 状态信息, 以根据获取的信道状态信息确定信道状态是否满足所述预设条 件。
18、 根据权利要求 17所述的方法, 所述信道状态测量类型包括以下类 型之一或其任意组合:
频选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
19、根据权利要求 17所述的方法,所述配置信息还包括指示信息配置, 以使得所述用户设备根据所述指示信息配置上报所述指示信息。
20、 根据权利要求 17所述的方法, 所述预设条件预先设置于网络侧, 且所述配置信息还包括所述预设条件。
21、 一种用户设备, 包括:
获取单元, 用于获取信道状态信息;
确定单元, 用于根据所述获取单元获取的所述信道状态信息, 确定信 道状态是否满足预设条件; 上报单元, 用于当所述信道状态满足预设条件时, 向基站上报指示信 息或所述信道状态信息。
22、 根据权利要求 21所述的用户设备, 所述指示信息包括信道状态变 化的类型信息, 和 /或, 信道状态变化的等级信息。
23、 根据权利要求 22所述的用户设备, 所述信道状态变化的类型信息 包括以下信息之一或其任意组合:
频选特性、 全带宽信道质量指示 CQI、 预编码矩阵指示 PMI和信道矩 阵的秩 RANK。
24、 根据权利要求 21至 23任一项所述的用户设备, 所述指示信息为 媒体接入控制层控制信元 MAC CE, 所述 MAC CE包括标识头。
25、根据权利要求 24所述的用户设备,所述 MAC CE还包括负载部分, 所述负载部分包括信道状态变化的类型信息, 和 /或, 信道状态变化的等级 信息。
26、 根据权利要求 21至 25任一项所述的用户设备, 还包括: 接收单元, 用于接收所述基站发送的配置信息, 所述配置信息包括信 道状态测量类型;
所述获取单元具体用于根据所述信道状态测量类型获取所述信道状态 信息。
27、 根据权利要求 26所述的用户设备, 所述信道状态测量类型包括以 下类型之一或其任意组合:
频选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
28、 根据权利要求 26所述的用户设备, 所述配置信息还包括指示信息 配置, 且所述上^艮单元具体用于根据所述指示信息配置上 "^所述指示信息。
29、 根据权利要求 26所述的用户设备, 所述预设条件预先设置于网络 侧, 且所述配置信息还包括所述预设条件。
30、 根据权利要求 21至 28任一项所述的用户设备, 还包括: 存储单元, 用于存储所述预设条件。
31、 一种用户设备, 包括接收机、 发射机、 存储器以及分别与所述接 收机、 发射机和存储器连接的处理器, 所述存储器存储一组程序代码, 所 述处理器调用所述存储器存储的程序代码, 用于执行权利要求 1至 10任一 项所述的方法。
32、 一种基站, 包括接收单元或获取单元, 和调度单元, 其中 所述接收单元, 用于接收用户设备上报的所述用户设备当前获取的信 道状态信息, 所述信道状态信息由所述用户设备在信道状态满足预设条件 时上才艮;
所述获取单元, 用于接收所述用户设备上报的指示信息并根据所述指 示信息从所述用户设备获取信道状态信息, 所述指示信息由所述用户设备 在信道状态满足预设条件时上报;
调度单元, 用于根据所述接收单元接收到的所述用户设备当前获取的 信道状态信息或根据获取单元从所述用户设备获取的信道状态信息进行无 线资源调度。
33、 根据权利要求 32所述的基站, 所述指示信息包括信道状态变化的 类型信息, 所述获取单元, 具体用于从所述用户设备获取与所述信道状态 变化的类型信息相应的信道状态信息。
34、 根据权利要求 33所述的基站, 所述指示信息还包括信道状态变化 的等级信息, 且所述信道状态变化的等级信息与所述信道状态变化的类型 信息相对应, 所述获取单元具体用于当所述信道状态变化的等级信息满足 预设等级要求时用于从所述用户设备获取与所述信道状态变化的类型信息 相应的信道状态信息。
35、 根据权利要求 33或 34所述的基站, 所述信道状态变化的类型信 息包括以下信息之一或其任意组合:
频选特性、 全带宽信道质量指示 CQI、 预编码矩阵索引 PMI和信道的 秩 RANK。
36、 根据权利要求 32至 35任一项所述的基站, 所述指示信息为媒体 接入控制层控制信元 MAC CE, 所述 MAC CE包括标识头。
37、根据权利要求 36所述的基站, 所述 MAC CE还包括负载部分, 所 述负载部分包括信道状态变化的类型信息, 和 /或, 信道状态变化的等级信 息。
38、 根据权利要求 32至 37任一项所述的基站, 还包括:
发送单元, 用于向所述用户设备发送配置信息, 所述配置信息包括信 道状态测量类型, 所述信道状态测量类型用于指示用户设备获取相应类型 的信道状态信息, 以根据获取的信道状态信息确定信道状态是否满足所述 预设条件。
39、 根据权利要求 38所述的基站, 所述信道状态测量类型包括以下类 型之一或其任意组合:
频选特性测量、 全带宽 CQI测量、 PMI测量和 RANK测量。
40、根据权利要求 38所述的基站,所述配置信息还包括指示信息配置, 以使得所述用户设备根据所述指示信息配置上报所述指示信息。
41、 根据权利要求 38所述的基站, 所述预设条件预先设置于网络侧, 且所述配置信息还包括所述预设条件。
42、 一种基站, 包括接收机、 发射机、 存储器以及分别与所述接收机、 发射机和存储器连接的处理器, 所述存储器存储一组程序代码, 所述处理 器调用所述存储器存储的程序代码, 用于执行权利要求 11至 20任一项所 述的方法。
43、 一种计算机程序产品, 包括计算机可读介质, 该可读介质包括一 组程序代码, 用于执行如权利要求 1至 10任一项所述的通信方法。
44、 一种计算机程序产品, 包括计算机可读介质, 该可读介质包括一 组程序代码, 用于执行如权利要求 11至 20任一项所述的通信方法。
45、 一种通信系统, 包括如权利要求 21至 31任一项所述的用户设备, 以及与该用户设备通信的如权利要求 32至 42任一项所述的基站。
PCT/CN2012/081879 2012-09-25 2012-09-25 通信方法、用户设备、基站与通信系统 WO2014047766A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2012/081879 WO2014047766A1 (zh) 2012-09-25 2012-09-25 通信方法、用户设备、基站与通信系统
CN201280018659.9A CN103858468B (zh) 2012-09-25 2012-09-25 通信方法、用户设备、基站与通信系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/081879 WO2014047766A1 (zh) 2012-09-25 2012-09-25 通信方法、用户设备、基站与通信系统

Publications (1)

Publication Number Publication Date
WO2014047766A1 true WO2014047766A1 (zh) 2014-04-03

Family

ID=50386760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/081879 WO2014047766A1 (zh) 2012-09-25 2012-09-25 通信方法、用户设备、基站与通信系统

Country Status (2)

Country Link
CN (1) CN103858468B (zh)
WO (1) WO2014047766A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242944A (zh) * 2016-12-26 2018-07-03 上海朗帛通信技术有限公司 一种用于多天线传输的ue、基站中的方法和装置
WO2019127260A1 (zh) * 2017-12-28 2019-07-04 华为技术有限公司 小区切换和终端识别的方法及装置
WO2022228296A1 (zh) * 2021-04-26 2022-11-03 华为技术有限公司 一种通信方法及装置
EP4258576A4 (en) * 2020-12-28 2024-05-29 Huawei Tech Co Ltd INFORMATION REPORTING PROCEDURE AND COMMUNICATION DEVICE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108111274B (zh) * 2017-08-11 2021-11-30 中兴通讯股份有限公司 信道状态信息的、信息发送、接收方法及装置
CN116941273A (zh) * 2021-03-26 2023-10-24 Oppo广东移动通信有限公司 信息报告方法、装置、设备及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011161744A1 (ja) * 2010-06-21 2011-12-29 富士通株式会社 無線通信方法、及び無線通信装置
CN102325013A (zh) * 2011-07-19 2012-01-18 电信科学技术研究院 信道状态信息传输方法和设备
CN102480756A (zh) * 2010-11-29 2012-05-30 中兴通讯股份有限公司 多点协作传输的配置方法和系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101426224A (zh) * 2007-11-02 2009-05-06 华为技术有限公司 测量结果上报方法、系统及设备
CN102624500A (zh) * 2011-01-26 2012-08-01 上海华为技术有限公司 Cqi上报方法、获取cqi的方法、系统、终端及基站

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011161744A1 (ja) * 2010-06-21 2011-12-29 富士通株式会社 無線通信方法、及び無線通信装置
CN102480756A (zh) * 2010-11-29 2012-05-30 中兴通讯股份有限公司 多点协作传输的配置方法和系统
CN102325013A (zh) * 2011-07-19 2012-01-18 电信科学技术研究院 信道状态信息传输方法和设备

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108242944A (zh) * 2016-12-26 2018-07-03 上海朗帛通信技术有限公司 一种用于多天线传输的ue、基站中的方法和装置
WO2019127260A1 (zh) * 2017-12-28 2019-07-04 华为技术有限公司 小区切换和终端识别的方法及装置
EP4258576A4 (en) * 2020-12-28 2024-05-29 Huawei Tech Co Ltd INFORMATION REPORTING PROCEDURE AND COMMUNICATION DEVICE
WO2022228296A1 (zh) * 2021-04-26 2022-11-03 华为技术有限公司 一种通信方法及装置

Also Published As

Publication number Publication date
CN103858468B (zh) 2018-06-26
CN103858468A (zh) 2014-06-11

Similar Documents

Publication Publication Date Title
US20220376965A1 (en) Switching Waveforms for Uplink Transmission in NR Network
US9749966B2 (en) Handling of simultaneous network communication transmission and D2D communication transmission
US9661441B2 (en) System and method to reduce radio resource management (RRM) related signaling in machine-to-machine (M2M) communications
US10098129B2 (en) Handling of simultaneous network communication transmission and D2D communication reception or simultaneous network communication reception and D2D communication transmission
KR102047795B1 (ko) 무선 네트워크 시스템에 연결된 사용자 장치를 위한 무선 접속 네트워크 파라미터들을 구성하는 시스템 및 방법
CA3077132C (en) Method and apparatus for wireless communication
CN111587548B (zh) 具有混合自动重传请求确认的物理上行链路共享信道
US10135674B2 (en) Wireless communication system with single-subband user equipment
JP5418929B2 (ja) 伝送モードを決定する方法、装置、および端末
WO2016033976A1 (zh) 一种数据传输方法和装置
JP6201031B2 (ja) 受信機ダイバーシティの適応的使用
US20130107816A1 (en) Allocating Control Data to User Equipment
WO2019047828A1 (zh) 一种数据传输的方法、装置及系统
WO2014047766A1 (zh) 通信方法、用户设备、基站与通信系统
WO2018127765A1 (en) Reporting of channel quality indicators corresponding to target error rates in wireless communication networks
JP7287494B2 (ja) 信号送受信方法、装置及びシステム
WO2016161656A1 (zh) 一种信道状态信息的上报方法、用户设备和基站
CN112312574A (zh) 一种通信传输的方法
WO2021136146A1 (zh) 传输方法及设备
WO2015027469A1 (zh) 下行信道聚合级别的确定方法、设备和系统
CN109756935B (zh) 一种调整工作带宽的方法和装置
KR20210010267A (ko) 사이드링크 통신에서 채널 상태 측정 및 보고 방법 및 장치
US20220255711A1 (en) Adaptive csi measurement and reporting for bwps with different number of layers
WO2017155440A1 (en) Measurement-relates signaling for wireless communication
WO2022067529A1 (zh) 一种通信方法及相关设备

Legal Events

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

Ref document number: 12885730

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12885730

Country of ref document: EP

Kind code of ref document: A1