WO2016107549A1 - Procédé et dispositif de configuration de signal de référence, station de base et équipement utilisateur - Google Patents

Procédé et dispositif de configuration de signal de référence, station de base et équipement utilisateur Download PDF

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Publication number
WO2016107549A1
WO2016107549A1 PCT/CN2015/099439 CN2015099439W WO2016107549A1 WO 2016107549 A1 WO2016107549 A1 WO 2016107549A1 CN 2015099439 W CN2015099439 W CN 2015099439W WO 2016107549 A1 WO2016107549 A1 WO 2016107549A1
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Prior art keywords
reference signal
uplink
user equipment
downlink
uplink reference
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PCT/CN2015/099439
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English (en)
Chinese (zh)
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陈亚迷
李刚
张兴
张佳鑫
李荣鹏
王文博
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中国移动通信集团公司
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Publication of WO2016107549A1 publication Critical patent/WO2016107549A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to signal measurement technologies in the field of communications, and in particular, to a method and apparatus for configuring reference signals, a base station, and a user equipment.
  • the reference signal can be used for network site/cell/carrier search, discovery, selection, reselection, access and handover, as well as user uplink and downlink control and traffic channel estimation and quality measurement.
  • users can be based on the main LTE system based on the primary synchronization signal/auxiliary synchronization signal, cell-specific reference signal (Cell- Specific reference signal (CRS) and other downlink symbols and reference signals are used for small base station discovery.
  • Cell- Specific reference signal Cell- Specific reference signal
  • the small base station can be implemented by monitoring the user's uplink sounding reference signal (SRS).
  • SRS uplink sounding reference signal
  • the small base station in the future can also realize the discovery of the small base station by monitoring the uplink SRS of the user through the small base station, so as to solve the broadcast burden and interference problem of a large number of downlink reference signals caused by the dense small stations in the future.
  • the relationship between the small cell corresponding to the small cell and the user will be more equal, mainly reflected in the fact that the small base station and the user are more similar in related configurations, such as antenna and power.
  • the uplink and downlink channel reciprocity will be more sufficient.
  • the uplink reference signal and the downlink reference signal are used to replace the downlink reference signal, and the uplink reference signal and the downlink reference signal are more interchangeable in channel measurement, and the uplink measurement is used instead of the downlink. Measurements are also more feasible.
  • the uplink reference signal sent by the user equipment poses a challenge to the uplink resources of the network and the uplink transmit power of the user.
  • the uplink signal should At the same time, so the allocation of uplink signals is not independent of each small station, but it is possible that multiple stations share the signal resource pool. That is to say, the control of the uplink reference signal is more of a virtual cell control effect, which reduces the multiplexing degree of the uplink resources and reduces the number of available uplink resources. Therefore, it may lead to the shortage of uplink resources.
  • the power of the user itself is also limited. Upstream reference signal measurements are not always efficient.
  • the embodiments of the present disclosure provide a method and an apparatus for configuring a reference signal, a base station, and a user equipment.
  • the embodiment of the present disclosure provides a method for configuring a reference signal, the method comprising:
  • the network device When the network side determines that the uplink air interface resource is insufficient, the network device sends a downlink reference signal to the user equipment, and notifies the corresponding user equipment to perform measurement according to the downlink reference signal, and notifies the corresponding user equipment to cancel or reduce the transmission of the uplink reference signal.
  • the network side determines that the uplink air interface resources are insufficient, including:
  • the network side determines that the uplink reference signal is denser than the preset threshold, or determines that the power headroom of the user equipment is lower than the preset threshold.
  • the method further includes:
  • the network side determines that the density of the uplink reference signal is lower than the preset threshold, and the power headroom of the user equipment is higher than the preset threshold, the user equipment is notified to send the uplink reference signal.
  • the network side notifies the user equipment to send an uplink reference signal, including:
  • the network side configures the user equipment to send an uplink reference signal, and allocates resources required for transmitting the uplink reference signal.
  • the method for determining the density of the uplink reference signal is any one of the following:
  • the upper and lower weights are determined by calculating the value of the uplink resource that needs to be configured when the uplink weight is measured based on the uplink reference signal, or the downlink resource that needs to be configured when the downlink weight is measured based on the downlink reference signal. It is related to uplink and downlink transmission power, or the uplink and downlink weights are related to uplink and downlink load ratios, or the uplink and downlink weights are related to network settings.
  • the method for determining a power headroom of the user equipment includes:
  • the network side detects the power headroom of each user equipment based on the power headroom report reported by each user equipment.
  • the range of determining the density of the uplink reference signal is any one of the following:
  • the uplink reference signal and the downlink reference signal are used for channel measurement, channel estimation, site discovery, and/or user discovery.
  • the corresponding user equipment includes: a user equipment to discover a site, or a user equipment that is already receiving a site service.
  • the user equipment that wants to discover the station cancels the uplink reference signal transmission, and reduces the uplink reference signal transmission for the user equipment that has already received the site service. Among them, all user equipments cancel the uplink reference signal transmission.
  • the notification corresponding to the user equipment includes triggering the user equipment to change the existing reference signal behavior by means of broadcast, multicast, or unicast.
  • the macro reference station pre-schedules the uplink reference signal when the uplink reference signal and the downlink reference signal are used for station discovery.
  • the network side switches the downlink reference signal mode to the uplink reference signal mode.
  • the embodiment of the present disclosure further provides a method for configuring a reference signal, the method comprising:
  • the user equipment receives the downlink reference signal sent by the network side when determining that the uplink air interface resource is insufficient, and after receiving the notification sent by the network side, performs measurement according to the downlink reference signal, and cancels or reduces transmission of the uplink reference signal.
  • the uplink air interface resources are insufficient, including:
  • the uplink reference signal is denser than the preset threshold, or the power headroom of the user equipment is lower than the preset threshold.
  • the method further includes:
  • the user equipment After receiving the notification sent by the network side, the user equipment sends an uplink reference signal;
  • the notification is sent when the network side determines that the density of the uplink reference signal is lower than a preset threshold and the power headroom of all user equipments is higher than a preset threshold.
  • the embodiment of the present disclosure further provides a configuration device for a reference signal, the device comprising: a determining module and a processing module; wherein
  • the determining module is configured to trigger the processing module when the uplink air interface resource is insufficient;
  • the processing module is configured to send a downlink reference signal to all user equipments, and notify all the user equipments to perform measurement according to the downlink reference signal, and notify all user equipments to cancel or reduce transmission of the uplink reference signal.
  • the determining module determines that the uplink air interface resource is insufficient, and includes:
  • the strength of the uplink reference signal is determined to be higher than a preset threshold, or the power headroom of the user equipment is determined to be lower than a preset threshold.
  • the determining module is further configured to: when the strength of the uplink reference signal is lower than a preset threshold, and the power headroom of all user equipments is higher than a preset threshold, triggering the processing module;
  • the processing module is further configured to notify all user equipments to send an uplink reference signal.
  • the determining module determines the density of the uplink reference signal to include any one of the following methods:
  • the determining module determines, by counting, the number of uplink resources that need to be configured when performing measurement based on the uplink reference signal;
  • the determining module determines by counting the number of user equipments that send uplink reference signals
  • the determining module determines, by using, the value of the uplink resource that needs to be configured when the uplink weight is measured based on the uplink reference signal, or the downlink resource that needs to be configured when the downlink reference signal is used for measurement.
  • the downlink weight is related to the uplink and downlink transmission power, or the uplink and downlink weights are related to the uplink and downlink load ratios, or the uplink and downlink weights are related to the network setting.
  • Embodiments of the present disclosure also provide a base station that includes the apparatus described above.
  • the embodiment of the present disclosure further provides a user equipment, where the user equipment includes: a receiving module and a processing module;
  • the receiving module is configured to receive a downlink reference signal that is sent by the network side when determining that the uplink air interface resource is insufficient, and triggers the processing module after receiving the notification sent by the network side;
  • the processing module is configured to perform measurement according to the downlink reference signal, and cancel or reduce transmission of an uplink reference signal.
  • the uplink air interface resources are insufficient, including:
  • the uplink reference signal is denser than the preset threshold, or the power headroom of the user equipment is lower than the preset threshold.
  • the user equipment further includes: a sending module, configured to send an uplink reference signal after the receiving module receives the notification sent by the network side;
  • the notification is sent when the network side determines that the density of the uplink reference signal is lower than a preset threshold and the power headroom of all user equipments is higher than a preset threshold.
  • the network side When the network side determines that the uplink air interface resource is insufficient, the network side sends a downlink reference signal to the user equipment, and notifies the corresponding user equipment to perform measurement according to the downlink reference signal, and the method for configuring the reference signal is provided by the embodiment of the present disclosure. Notifying the corresponding user equipment to cancel or reduce the transmission of the uplink reference signal.
  • the embodiment of the present disclosure fully utilizes the reciprocity of the uplink and downlink channels.
  • the downlink reference signal is used instead of the uplink reference signal for measurement, and the uplink reference signal is used to improve the pollution state of the downlink reference signal, thereby solving the uplink reference signal for uplink.
  • Resources and the pressure caused by the transmission power of user equipment can also improve the interference environment of the network, improve the channel measurement quality, Reduce the reference signal transmission overhead.
  • FIG. 1 is a flowchart of implementing a method for configuring a reference signal according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of implementing a method for configuring a reference signal according to another embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a device for configuring a reference signal according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • the network device when the network side determines that the uplink air interface resource is insufficient, the network device sends a downlink reference signal to the user equipment, and notifies the corresponding user equipment to perform measurement according to the downlink reference signal, and notifies the corresponding user equipment to cancel or reduce the sending of the uplink reference signal.
  • the density of the uplink reference signal is: the density of the uplink reference signal that needs to be configured when the measurement is performed based on the uplink reference signal; the corresponding user equipment is: all user equipments that need to upload the uplink reference signal.
  • the corresponding user equipment is: a user equipment that needs to complete a “user discovery, measurement, or channel estimation” behavior by using a reference signal; and for a partial still, it is not required to perform the foregoing “user discovery,
  • the user equipment of the measurement or channel estimation behavior is not included in the scope of the corresponding user equipment described in the embodiments of the present disclosure.
  • the corresponding user equipment may include: a user equipment to discover a site, or a user equipment that is already receiving a site service.
  • the invention is not limited thereto.
  • the uplink reference signal transmission can be cancelled for the user equipment that needs to discover the station; on the other hand, the uplink reference signal transmission can be reduced for the user equipment that is already receiving the site service. Or, all user equipments cancel the uplink reference signal transmission.
  • FIG. 1 is a flowchart of a method for configuring a reference signal according to an embodiment of the present disclosure. As shown in FIG. 1, the method includes:
  • Step 101 The network side determines that the uplink air interface resource is insufficient.
  • the network side may be an eNodeB or the like in an LTE system.
  • Step 102 The network side sends a downlink reference signal to the user equipment, and notifies the corresponding user equipment to perform measurement according to the downlink reference signal, and notifies the corresponding user equipment to cancel or reduce the transmission of the uplink reference signal.
  • the uplink reference signal and the downlink reference signal are used for channel measurement, channel estimation, site discovery, and/or user discovery.
  • the notification method has the following specifications: for example, the specific notification method may trigger the user equipment to change the existing reference signal behavior by broadcasting, multicast, and unicast.
  • a broadcast indicator bit can be designed to tell all user equipments that the current network starts to send downlink reference signals, and the uplink resources are reclaimed.
  • the broadcast method has a problem of timeliness, so it is also possible to pass a multicast or unicast policy.
  • Unicast is mainly suitable for users who are connected or at another service layer, such as a macro station, and the greatest benefit of unicast is that it ensures the timeliness of information transmission.
  • the network side can also switch the downlink reference signal mode to the uplink reference signal mode.
  • the network side determines that the uplink air interface resources are insufficient, including:
  • the network side determines that the uplink reference signal is denser than the preset threshold, or determines that the power headroom of the user equipment is lower than the preset threshold.
  • the method further includes: when the network side determines that the density of the uplink reference signal is lower than a preset threshold, and the power headroom of the user equipment is higher than the preset threshold, notifying the user equipment to send the uplink reference signal.
  • the network side notifies the user equipment to send an uplink reference signal, including:
  • the network side configures the user equipment to send an uplink reference signal, and allocates resources required for transmitting the uplink reference signal.
  • the embodiment of the present disclosure fully utilizes the reciprocity of the uplink and downlink channels.
  • the downlink reference signal is used instead of the uplink reference signal for measurement, and the uplink reference signal is used to improve the pollution state of the downlink reference signal, thereby solving the uplink reference signal for uplink.
  • the resources and the pressure caused by the transmit power of the user equipment can also improve the interference environment of the network, improve the channel measurement quality, and reduce the reference signal transmission overhead.
  • the method for determining the density of the uplink reference signal is any one of the following:
  • the uplink resource may be: an occupied radio block (RB), that is, a basic time-frequency unit of LTE radio transmission.
  • RB occupied radio block
  • the uplink resource and the downlink resource to be configured may be measured by the number of occupied RBs; the uplink and downlink weights are related to uplink and downlink transmission power, and the power is larger, the weight is larger; the uplink and downlink weights are It is also related to the uplink and downlink load ratios. The larger the load is, the larger the weight is.
  • the uplink and downlink weights are also related to the network settings. For example, in order to consider the terminal energy saving, the downlink weight can be increased.
  • the preset threshold of the density of the uplink reference signal may be any one of the following:
  • the number of all available uplink resources in the system is * threshold.
  • the number of uplink resources can be represented by RB, and the threshold can be as 30%.
  • the number of user devices is, for example, 2.
  • Uplink weight Uplink resource to be configured based on the uplink reference signal
  • downlink weight * Downlink resource to be configured based on the downlink reference signal The value is 1.
  • the preset threshold of the density of the uplink reference signal may be set to other values.
  • the determination of the density of the uplink reference signal may be within a macro station range, or within a group of neighboring small base stations, or within a small base station range.
  • the method for determining the power headroom of the user equipment includes:
  • the network side detects the power headroom of each user equipment based on the Power Headroom Report (PHR) reported by each user equipment.
  • PHR Power Headroom Report
  • the method for determining that a power headroom of a user equipment is lower than a preset threshold includes:
  • the power headroom of the user equipment is compared with the preset threshold. If the user equipment in the user equipment has a power headroom lower than the preset threshold, the power headroom of the user equipment is considered to be lower than the preset threshold.
  • the embodiment of the present disclosure further provides a method for configuring a reference signal, the method comprising:
  • the user equipment receives the downlink reference signal sent by the network side when determining that the uplink air interface resource is insufficient. And after receiving the notification sent by the network side, performing measurement according to the downlink reference signal, and canceling or reducing transmission of the uplink reference signal.
  • the uplink air interface resources are insufficient, including:
  • the uplink reference signal is denser than the preset threshold, or the power headroom of the user equipment is lower than the preset threshold.
  • the method for determining the density of the uplink reference signal is any one of the following:
  • the uplink resource may be: a radio block (RB) that is occupied, that is, a basic time-frequency unit of LTE radio transmission.
  • RB radio block
  • the value of the downlink resource to be configured is determined by the value of the downlink resource (the uplink resource to be configured when the uplink reference signal is used for measurement) or the downlink resource to be configured based on the downlink reference signal.
  • the resources and the downlink resources may be measured by the number of occupied RBs; the uplink and downlink weights are related to the uplink and downlink transmission powers, and the greater the power, the greater the weight; the uplink and downlink weights are also related to the uplink and downlink load ratios.
  • the preset threshold of the density of the uplink reference signal may be any one of the following:
  • the number of all available uplink resources in the system is * threshold.
  • the number of uplink resources can be represented by RB, and the threshold can be as 30%.
  • the number of user devices is, for example, 2.
  • Uplink weight Uplink resource to be configured based on the uplink reference signal
  • downlink weight * Downlink resource to be configured based on the downlink reference signal The value is 1.
  • the preset threshold of the density of the uplink reference signal may be set to other values.
  • the determination of the density of the uplink reference signal may be within a macro station range, or within a group of neighboring small base stations, or within a small base station range.
  • the method further includes:
  • the user equipment After receiving the notification sent by the network side, the user equipment sends an uplink reference signal;
  • the notification is sent when the network side determines that the density of the uplink reference signal is lower than a preset threshold and the power headroom of the user equipment is higher than a preset threshold.
  • the embodiment of the present disclosure fully utilizes the reciprocity of the uplink and downlink channels.
  • the downlink reference signal is used instead of the uplink reference signal for channel measurement, and the uplink reference signal is used to improve the pollution state of the downlink reference signal, and the uplink reference signal is solved.
  • the uplink resources and the pressure caused by the transmit power of the user equipment can also improve the interference environment of the network, improve the channel measurement quality, and reduce the reference signal transmission overhead.
  • FIG. 2 is a flowchart of a method for configuring a reference signal according to another embodiment of the present disclosure. As shown in FIG. 2, the method includes:
  • Step 201 The network side collects the density of the uplink reference signal that needs to be sent by the user equipment before sending the reference signal configuration message.
  • the network side may send the reference signal configuration message through a physical downlink control channel (PDCCH) in LTE.
  • the uplink reference signal may be an SRS in LTE.
  • Step 202 The network side determines whether the density of the uplink reference signal is higher than a preset threshold. If yes, step 203 is performed; otherwise, step 204 is performed.
  • Step 203 The network side sends a downlink reference signal to the user equipment, and sends a downlink control message to notify the user equipment to perform channel measurement according to the corresponding downlink reference signal, and notify the user equipment to cancel or reduce the transmission of the uplink reference signal, and then execute Step 207.
  • Step 204 The network side detects the power headroom of the user equipment based on the PHR reported by the user equipment.
  • Step 205 The network side determines whether the power headroom of the user equipment is lower than the preset threshold. If yes, step 203 is performed; otherwise, step 206 is performed.
  • UE power headroom reporting in the physical uplink shared channel (PUSCH) power control of the LTE system which is the difference between the maximum transmit power of the UE and the required transmit power according to the formula, and the value range is -23 ⁇ 40db. It can be understood that when the power headroom (PH) of the user equipment is less than 0 (the preset threshold of the power headroom), the transmission power of the user equipment is insufficient to a certain extent.
  • PUSCH physical uplink shared channel
  • Step 206 The network side sends a downlink control message to notify the user equipment to send an uplink reference signal.
  • Step 207 The configuration flow of the reference signal ends.
  • the embodiment of the present disclosure further provides a configuration device for a reference signal.
  • the device includes: a determining module 301 and a processing module 302;
  • the determining module 301 is configured to trigger the processing module 302 when the uplink air interface resource is insufficient;
  • the processing module 302 is configured to send a downlink reference signal to the user equipment, and notify the user equipment to perform measurement according to the downlink reference signal, and notify the user equipment to cancel or reduce transmission of the uplink reference signal.
  • the determining module determines that the uplink air interface resource is insufficient, and includes:
  • the strength of the uplink reference signal is determined to be higher than a preset threshold, or the power headroom of the user equipment is determined to be lower than a preset threshold.
  • the determining module 301 is further configured to: when the strength of the uplink reference signal is lower than a preset threshold, and the power headroom of the user equipment is higher than a preset threshold, triggering the processing module 302;
  • processing module 302 is further configured to notify the user equipment to send an uplink reference signal.
  • the embodiment of the present disclosure fully utilizes the reciprocity of the uplink and downlink channels.
  • the downlink reference signal is used instead of the uplink reference signal for channel measurement, and the uplink reference signal is used to improve the pollution state of the downlink reference signal, and the uplink reference signal is solved.
  • the uplink resources and the pressure caused by the transmit power of the user equipment can also improve the interference environment of the network, improve the channel measurement quality, and reduce the reference signal transmission overhead.
  • the determining module 301 determines that the density of the uplink reference signal includes any one of the following methods:
  • the upper and lower weights are determined by calculating the value of the uplink resource that needs to be configured when the uplink weight is measured based on the uplink reference signal, or the downlink resource that needs to be configured when the downlink weight is measured based on the downlink reference signal. It is related to uplink and downlink transmission power, or the uplink and downlink weights are related to uplink and downlink load ratios, or the uplink and downlink weights are related to network settings.
  • the preset threshold of the density of the uplink reference signal may be any one of the following:
  • the number of all available uplink resources in the system is * threshold.
  • the number of uplink resources can be represented by RB, and the threshold can be as 30%.
  • the number of user devices is, for example, 2.
  • Uplink weight Uplink resource to be configured based on the uplink reference signal
  • downlink weight * Downlink resource to be configured based on the downlink reference signal The value is 1.
  • the preset threshold of the density of the uplink reference signal may be set to other values.
  • the determining module 301 determines the density of the uplink reference signal, it may be within the macro station range, or within a group of adjacent small base stations, or in a small base station range.
  • UE power headroom reporting in the physical uplink shared channel (PUSCH) power control of the LTE system which is the difference between the maximum transmit power of the UE and the required transmit power according to the formula, and the value range is -23 ⁇ 40dB. It can be understood that when the power headroom (PH) of the user equipment is less than 0 (the preset threshold of the power headroom), the transmission power of the user equipment is insufficient to a certain extent.
  • PUSCH physical uplink shared channel
  • the embodiment of the present disclosure further provides a base station including the configuration apparatus of the reference signal described above, and the base station may be an eNodeB or the like in an LTE system.
  • the embodiment of the present disclosure further provides a user equipment, as shown in FIG. 4, the user equipment includes: a receiving module 41 and a processing module 42;
  • the receiving module 41 is configured to receive a downlink reference signal that is sent by the network side when determining that the uplink air interface resource is insufficient, and trigger the processing module after receiving the notification sent by the network side;
  • the processing module 42 is configured to perform measurement according to the downlink reference signal, and cancel or reduce transmission of the uplink reference signal.
  • the embodiment of the present disclosure fully utilizes the reciprocity of the uplink and downlink channels.
  • the downlink reference signal is used instead of the uplink reference signal for measurement, and the uplink reference signal is used to improve the pollution state of the downlink reference signal, thereby solving the uplink reference signal for uplink.
  • the resources and the pressure caused by the transmit power of the user equipment can also improve the interference environment of the network, improve the measurement quality, and reduce the reference signal transmission overhead.
  • the uplink air interface resources are insufficient, including:
  • the uplink reference signal is denser than the preset threshold, or the power headroom of the user equipment is lower than the preset threshold.
  • the method for determining the density of the uplink reference signal is as follows One:
  • the uplink resource may be: a radio block (RB) that is occupied, that is, a basic time-frequency unit of LTE radio transmission.
  • RB radio block
  • the value of the downlink resource to be configured is determined by the value of the downlink resource (the uplink resource to be configured when the uplink reference signal is used for measurement) or the downlink resource to be configured based on the downlink reference signal.
  • the resources and the downlink resources may be measured by the number of occupied RBs; the uplink and downlink weights are related to the uplink and downlink transmission powers, and the greater the power, the greater the weight; the uplink and downlink weights are also related to the uplink and downlink load ratios.
  • the preset threshold of the density of the uplink reference signal may be any one of the following:
  • the number of all available uplink resources in the system is * threshold.
  • the number of uplink resources can be represented by RB, and the threshold can be as 30%.
  • the number of user devices is, for example, 2.
  • Uplink weight Uplink resource to be configured based on the uplink reference signal
  • downlink weight * Downlink resource to be configured based on the downlink reference signal The value is 1.
  • the preset threshold of the density of the uplink reference signal may be set to other values.
  • the determination of the density of the uplink reference signal may be within a macro station range, or within a group of neighboring small base stations, or within a small base station range.
  • the user equipment further includes: a sending module 43, configured to send an uplink reference signal after the receiving module 41 receives the notification sent by the network side;
  • the notification is sent when the network side determines that the density of the uplink reference signal is lower than a preset threshold and the power headroom of the user equipment is higher than a preset threshold.
  • the embodiments of the present disclosure comprehensively consider the overhead of the uplink reference signal configuration and the power constraint of the user equipment, and flexibly configure the uplink reference signal or the downlink reference signal to implement channel measurement, so as to reduce the reference signal transmission overhead and the impact on the network performance.
  • the uplink reference signal can be sent by the user equipment. Otherwise, if the number of access points (base stations) is smaller than the number of user equipments, the downlink reference signal is sent by the access point for multiple The user equipment performs channel measurement.
  • the technical solutions provided by the embodiments of the present disclosure may also be used for HetNet+UDN+ site discovery.
  • Traditional mechanisms for site discovery by downlink signals can cause storms and interference of reference signals; of course, this can be optimized to reduce the downlink signal density, but at the same time increase the station discovery delay.
  • a scheme based on uplink signal discovery is also proposed in the small cell enhancement. Since the uplink signal should be recognized by multiple stations at the same time, the allocation of the uplink signal is not independently performed by each small station, but may be performed by the macro station.
  • a pool of upstream signal resources to coordinate That is to say, it is more of a virtual cell at the control level, which reduces the reuse of uplink resources and reduces the number of available uplink resources.
  • how the user uplink discovery signal is scheduled can be pre-scheduled by the macro station.
  • the uplink discovery signal allows a certain degree of non-synchronization, and at the same time, the macro user synchronizes through macro-micro synchronization.
  • the embodiments of the present disclosure are applicable not only to conventional reference signals, but also to reference signals having similar functions in future networks. Moreover, the embodiments of the present disclosure are applicable not only to the configuration of the measurement reference signal but also to the configuration of the small base station discovery reference signal.
  • embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de configuration d'un signal de référence. Le procédé comprend les étapes suivantes dans lesquelles : lorsqu'un côté réseau détermine que les ressources d'interface hertzienne de liaison montante sont insuffisantes, le côté réseau envoie un signal de référence de liaison descendante à un équipement utilisateur, envoie à l'équipement utilisateur l'instruction de mesurer en fonction du signal de référence de liaison descendante, et envoie à l'équipement utilisateur l'instruction d'annuler ou de réduire l'envoi de signaux de référence de liaison montante. L'invention concerne également un dispositif permettant de mettre en œuvre le procédé et une station de base.
PCT/CN2015/099439 2015-01-04 2015-12-29 Procédé et dispositif de configuration de signal de référence, station de base et équipement utilisateur WO2016107549A1 (fr)

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CN108377491B (zh) 2016-11-11 2021-06-22 华为技术有限公司 一种上行信号的响应方法及装置
CN108271177B (zh) * 2017-01-03 2022-02-18 华为技术有限公司 一种测量信号的传输方法及装置
CN110034898B (zh) * 2018-01-12 2021-11-16 大唐移动通信设备有限公司 一种参考信号传输方法及装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101808410A (zh) * 2010-01-29 2010-08-18 华为技术有限公司 资源管理方法、设备和系统
CN102149204A (zh) * 2011-02-01 2011-08-10 华为技术有限公司 一种信道资源调度方法、系统及基站
CN102281518A (zh) * 2010-06-12 2011-12-14 普天信息技术研究院有限公司 一种资源调度/授权方法
CN102395184A (zh) * 2011-06-30 2012-03-28 电信科学技术研究院 一种实施上行功率控制的方法及装置
US20130034037A1 (en) * 2011-08-02 2013-02-07 Vodafone Holding Gmbh Method for reduced resource usage in system synchronization, data delivery and asynchronous real-time access mobile communications systems with multiple low complexity terminals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2459058B (en) * 2007-02-02 2011-10-26 Lg Electronics Inc Antenna switching method and method for transmitting and receiving signals for the same
CN101835174B (zh) * 2009-03-12 2012-10-31 中国移动通信集团公司 信号传送方法及其相关设备
CN103024915B (zh) * 2011-09-23 2015-08-12 普天信息技术研究院有限公司 一种实现上行侦听参考信号周期自适应的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101808410A (zh) * 2010-01-29 2010-08-18 华为技术有限公司 资源管理方法、设备和系统
CN102281518A (zh) * 2010-06-12 2011-12-14 普天信息技术研究院有限公司 一种资源调度/授权方法
CN102149204A (zh) * 2011-02-01 2011-08-10 华为技术有限公司 一种信道资源调度方法、系统及基站
CN102395184A (zh) * 2011-06-30 2012-03-28 电信科学技术研究院 一种实施上行功率控制的方法及装置
US20130034037A1 (en) * 2011-08-02 2013-02-07 Vodafone Holding Gmbh Method for reduced resource usage in system synchronization, data delivery and asynchronous real-time access mobile communications systems with multiple low complexity terminals

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