WO2011153699A1 - 用于在载波聚合***中的上行次分量载波上传输探测参考信号的方法和设备 - Google Patents
用于在载波聚合***中的上行次分量载波上传输探测参考信号的方法和设备 Download PDFInfo
- Publication number
- WO2011153699A1 WO2011153699A1 PCT/CN2010/073753 CN2010073753W WO2011153699A1 WO 2011153699 A1 WO2011153699 A1 WO 2011153699A1 CN 2010073753 W CN2010073753 W CN 2010073753W WO 2011153699 A1 WO2011153699 A1 WO 2011153699A1
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- WIPO (PCT)
- Prior art keywords
- user equipment
- reference signal
- sounding reference
- component carrier
- secondary component
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
Definitions
- the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for transmitting a sounding reference signal on an uplink secondary component carrier in a carrier aggregation system. Background technique
- LTE-Advanced Long Term Evolution-Advanced
- ITU International Telecommunication Union
- the carrier aggregation technology can aggregate multiple carriers in different frequency bands to form a bandwidth of up to 100M, so that user equipment (UE) of LTE-A can receive and/or transmit data on multiple carriers, thereby enabling transmission or reception.
- the bandwidth of the data is greater than 20M.
- each aggregated carrier is referred to as a component carrier (CC).
- CC component carrier
- PCC primary component carrier
- SCC secondary component carrier
- the PCC and SCC can be different, but each user equipment has only one PCC.
- the transmission of signals in the uplink component carrier includes transmission of the uplink shared channel, transmission of the uplink control channel, and transmission of an uplink periodic sounding reference signal (hereinafter referred to as pSRS).
- pSRS uplink periodic sounding reference signal
- the user equipment can activate the uplink shared channel transmission after receiving the corresponding scheduling information from the physical downlink control channel (PDCCH);
- PDCCH physical downlink control channel
- the uplink control channel For the uplink control channel, its transmission can only occur on the PCC, ie the uplink control channel will not be transmitted on the SCC.
- Viewpoint 2 In some cases, pSRS transmission on the SCC will be stopped in order to save power of the user equipment and reduce interference to other user equipment. For example, when the uplink traffic of the user equipment is small, the base station will not schedule data transmission on a certain SCC for a period of time. At this time, it is unnecessary to transmit the pSRS, so the transmission of the pSRS can be stopped during this period of time. .
- a method for transmitting a periodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system comprising: configuring a user equipment Determining whether an uplink trigger component is received, the activation triggering event is used to activate the user equipment to transmit the week on the configured uplink secondary component carrier And the physical resource parameter required for transmitting the periodic sounding reference signal on the configured uplink secondary component carrier; and the data element is configured to be included in the configured uplink secondary component carrier, if the activation triggering event is received, And transmitting, by the user equipment, information about the physical resource parameter configured by the user equipment to the user equipment, to activate the user equipment to transmit the periodic sounding reference signal on the configured uplink secondary component carrier.
- a method for transmitting an aperiodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system comprising: determining that the first user equipment is in the Whether the transmission of the periodic sounding reference signal on the uplink secondary component carrier is deactivated; and if the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment is deactivated, The information of the resource of the periodic sounding reference signal is transmitted to the second user equipment, and the second user equipment transmits the aperiodic sounding reference signal on the uplink secondary component carrier.
- an apparatus for transmitting a periodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system comprising: an uplink secondary component carrier configuration unit, Configuring the uplink secondary component carrier for the user equipment; the activation determining unit, configured to determine whether an activation trigger event is received, where the activation trigger event is used to activate the user equipment to transmit the periodicity on the uplink secondary component carrier a sounding reference signal configuration unit, configured to, when the activation determining unit determines that the activation triggering event is received, configure the user equipment to transmit the cycle on the uplink secondary component carrier a physical resource parameter required for the sounding reference signal; and an activation signaling transmission unit, configured to transmit information including the physical resource parameter configured for the user equipment to the user equipment to activate the user equipment The periodic sounding reference signal is transmitted on the configured uplink secondary component carrier.
- an apparatus for transmitting an aperiodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system comprising: a deactivation determining unit, configured to determine Whether the transmission of the periodic sounding reference signal on the uplink secondary component carrier is deactivated by the first user equipment; and the resource signaling transmission unit, configured to determine, at the deactivation determining unit, that the first user equipment is in the Transmitting the information of the resource including the periodic sounding reference signal to the second user equipment, where the second user equipment is in the case that the transmission of the periodic sounding reference signal on the uplink secondary component carrier is deactivated
- the aperiodic sounding reference signal is transmitted on the uplink secondary component carrier.
- a wireless communication system including a base station and a user
- the base station comprising, according to the present invention, a device for transmitting a periodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system
- the user equipment comprising a signaling receiving unit, the signaling receiving unit Receiving signaling from the base station.
- a wireless communication system comprising a base station and a user equipment, the base station comprising an aperiodic transmission on an uplink secondary component carrier in a carrier aggregation system according to the present invention
- a device for detecting a reference signal the user equipment includes a signaling receiving unit, and the signaling receiving unit is configured to receive signaling from the base station.
- a program product comprising machine readable instruction code stored therein, wherein said instruction code, when read and executed by a computer, enables said The computer performs a method for transmitting a sounding reference signal on an uplink secondary component carrier in a carrier aggregation system in accordance with the present invention.
- a computer readable medium having recorded thereon a computer program for implementing the above method for transmitting a sounding reference signal on an uplink secondary component carrier in a carrier aggregation system Code.
- the configuration of the uplink secondary component carrier of the user equipment is separated from the configuration of the probe reference signal resource.
- the resources of the sounding reference signal to the user equipment when needed and activating the transmission of the sounding reference signal
- the physical resources of the user equipment when the periodic sounding reference signal transmission is not performed on an uplink SCC can be avoided.
- the waste thereby improving the utilization efficiency of the system's sounding reference signal resources, enables the system to support more users.
- FIG. 1 is a flow chart showing a method for transmitting a periodic sounding reference signal on an uplink sub-component carrier in a carrier aggregation system according to an embodiment of the present invention
- FIG. 2 is a flowchart illustrating a method for transmitting an aperiodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system, in accordance with an embodiment of the present invention
- 3 is a block diagram showing an apparatus for transmitting a periodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system according to an embodiment of the present invention
- FIG. 4 is a block diagram showing an apparatus for transmitting an aperiodic sounding reference signal on an uplink sub-component carrier in a carrier aggregation system according to an embodiment of the present invention
- FIG. 5 is a block diagram showing a wireless communication system according to an embodiment of the present invention.
- FIG. 6 is a block diagram showing another wireless communication system in accordance with an embodiment of the present invention.
- FIG. 1 is a flow chart showing a method for transmitting a periodic sounding reference signal on an uplink sub-component carrier in a carrier aggregation system according to an embodiment of the present invention.
- an uplink secondary component carrier is configured for the user equipment.
- the base station when configuring an uplink SCC for a user equipment, the base station does not simultaneously configure its pSRS resource, but in a subsequent process, according to an event, when the base station decides to trigger the user equipment in one of the The pSRS resource is configured on the uplink SCC for the user equipment by signaling, when the transmission of the pSRS on the uplink SCC is configured.
- step S120 it is determined whether an activation trigger event is received, and the activation trigger event is used to activate the user equipment to transmit the periodic sounding reference signal on the configured uplink secondary component carrier.
- the base station may activate the pSRS transmission on the uplink SCC; when the user equipment reports If the buffer length is lower than a certain predefined threshold, the base station decides to stop scheduling data for the user equipment on the uplink SCC, and then the base station may deactivate the pSRS transmission on the uplink SCC.
- the base station can simultaneously activate the pSRS transmission of the uplink SCC that has a link relationship with the downlink SCC.
- the base station deactivates a downlink SCC of the user equipment, the base station The pSRS transmission of the uplink SCC having a link relationship with the downlink SCC may be simultaneously deactivated.
- step S130 if it is determined in step S120 that the activation triggering event is received, the user equipment is configured to configure the physical resource parameters required for transmitting the periodic sounding reference signal on the configured uplink secondary component carrier.
- configuring the uplink secondary component carrier for the user equipment and configuring the physical resource parameters required for the user equipment to transmit the periodic sounding reference signal on the configured uplink secondary component carrier are performed separately.
- the user equipment can be prevented from wasting the physical resources when the periodic sounding reference signal is not transmitted on an uplink SCC, thereby improving the utilization efficiency of the sounding reference signal resources of the system, so that the system can support more users.
- step S140 information including the physical resource parameters configured for the user equipment is transmitted to the user equipment to activate the user equipment to transmit the periodic sounding reference signal on the configured uplink secondary component carrier.
- the deactivation of the periodic sounding reference signal includes, but is not limited to, the following three schemes.
- the first solution is to determine whether a deactivation trigger event is received, the deactivation trigger event is used to deactivate the user equipment to transmit a periodic sounding reference signal on the configured uplink secondary component carrier; and if received When the trigger event is activated, information indicating the resource that releases the periodic sounding reference signal is sent to the user equipment to release the resource of the periodic sounding reference signal.
- the second scheme is to set a deactivation timer for the configured uplink sub-component carrier; and release the resource of the periodic sounding reference signal when the deactivation timer expires.
- the third scheme is to provide a downlink sub-component with a link relationship with the configured uplink sub-component carrier.
- the carrier set deactivation timer; and when the deactivation timer expires, the resources of the periodic sounding reference signal are released.
- a method for transmitting a periodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system is a one-step management method, that is, only through radio resource control
- RRC Radio Resource Control
- the initial state of the pSRS is set to "release", that is, the user equipment is not configured with any pSRS related resources on the uplink SCC.
- the base station activates or deactivates the pSRS transmission of the user equipment on the uplink SCC according to certain events.
- the base station decides to activate the user equipment to transmit the pSRS on a configured uplink SCC
- the base station configures, by the RRC signaling, the user equipment to configure the pSRS transmission on the uplink SCC.
- the parameter activates the transmission of the pSRS at the same time.
- the transmission process is the same as the transmission process in the LTE system.
- the method according to the present invention is configured while configuring the user equipment to transmit the physical resource parameters required for the periodic sounding reference signal on the configured uplink secondary component carrier. And configuring, for the user equipment, other parameters for transmitting the periodic sounding reference signal on the configured uplink secondary component carrier, and transmitting, by using RRC signaling, information including physical resource parameters and other parameters configured for the user equipment to the user equipment,
- the periodic sounding reference signal is transmitted on the configured uplink secondary component carrier by the active user equipment.
- the base station decides to deactivate the user equipment to transmit the pSRS on a configured uplink SCC, the base station sets the state of the pSRS to "release" through RRC signaling.
- the base station and the user equipment maintain one for each configured uplink SCC.
- the pSRS deactivates the timer. After receiving the scheduling signaling for the uplink SCC, the pSRS deactivation timer of the uplink SCC is restarted. After the timer expires, the user equipment stops the transmission of the pSRS on the uplink SCC, and the base station and the user equipment release the pSRS resource of the uplink SCC.
- the user equipment when a downlink SCC of the user equipment is deactivated because its deactivation timer expires, the user equipment simultaneously stops pSRS transmission of the uplink SCC having a link relationship with the downlink SCC, the base station And releasing, by the user equipment, the pSRS resource of the uplink SCC.
- a method for transmitting a periodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system is a two-step management method, that is, RRC configuration plus PDCCH activation/de- Activate, the specific steps are as follows.
- the initial state of the pSRS is set to "setup", but only one pSRS parameter, that is, srs-ConfigIndex, is configured for the user equipment.
- the purpose of this parameter is to determine the period of pSRS transmission and the offset value in each frame.
- the method according to the present invention when configuring the uplink secondary component carrier for the user equipment, the method according to the present invention further configures, for the user equipment, other parameters for transmitting the periodic sounding reference signal on the configured uplink secondary component carrier,
- the other parameters are parameters other than physical resource parameters (eg, srs-Configlndex), and information including other parameters configured for the user equipment is transmitted to the user equipment through RRC signaling.
- the base station activates or deactivates the pSRS transmission of the user equipment on the uplink SCC according to certain events.
- the base station uses the PDCCH signaling to configure the user equipment to configure the pSRS transmission on the uplink SCC.
- the PDCCH signaling needs to include at least the following parameters: srs-Bandwidth, srs-HoppingBandwidth, freqDomainPosition, transmissionComb, cyclicShift.
- the user equipment activates the transmission of the pSRS.
- the transmission process is the same as the transmission process in the LTE system.
- the step of transmitting information including physical resource parameters configured for the user equipment to the user equipment is performed by PDCCH signaling.
- the three schemes in this embodiment are embodied as follows.
- the base station decides to deactivate the user equipment to transmit the pSRS on a configured uplink SCC
- the base station deactivates the user equipment in the uplink SCC by using PDCCH signaling.
- the base station and the user equipment release the pSRS resources of the uplink SCC.
- a method for transmitting an aperiodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system is further described below with reference to the accompanying drawings.
- FIG. 2 is a flow chart showing a method for transmitting an aperiodic sounding reference signal on an uplink sub-component carrier in a carrier aggregation system, in accordance with an embodiment of the present invention.
- step S210 it is determined whether the transmission of the periodic sounding reference signal of the first user equipment on the uplink secondary component carrier is deactivated.
- the base station configures the pSRS resource for the user equipment when configuring the uplink SCC, but the user Whether the device transmits pSRS needs to be controlled by MAC activation/deactivation signaling.
- the base station in order to improve the utilization of the idle pSRS resources, after the base station deactivates the pSRS transmission of the user equipment on a configured uplink SCC by MAC signaling, the base station and the user equipment default that the pSRS resource has been released. .
- the base station may freely control the allocation of the pSRS resources and distribute it to other user equipments for aperiodic SRS (aperiodic SRS, The following cartridge is called the transmission of apSRS).
- step S220 if the transmission of the periodic sounding reference signal on the uplink secondary component carrier of the first user equipment is deactivated, the base station will include information of the resource of the first user equipment periodically sounding the reference signal.
- the second user equipment is transmitted to the second user equipment for transmitting the aperiodic sounding reference signal on the uplink secondary component carrier.
- an idle pSRS resource of one user equipment may be allocated by a base station to other user equipment for transmission of apSRS. In this way, the utilization efficiency of the system's sounding reference signal resources can be improved, so that the system can support more users.
- a method of transmitting an aperiodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system will be described below with reference to specific embodiments.
- the base station performs apSRS resource configuration through RRC signaling, and activates apSRS through PDCCH signaling.
- the base station allocates the resources used for the pSRS transmission to a group of users through RRC signaling.
- the RRC signaling includes at least the following parameters: srs-Bandwidth, freqDomainPosition, transmissionComb, cyclicShift.
- the base station activates the transmission of the apSRS of the user equipment B by using PDCCH signaling.
- the PDCCH signaling needs to include at least lbit information to indicate activation of the apSRS.
- the base station After the base station activates the pSRS transmission of the user equipment A on the uplink SCC through the MAC signaling, the user equipment A continues to transmit the pSRS resource using the pSRS resource on the uplink SCC configured by the RRC signaling. If the base station has allocated the resources of the pSRS to another group of user equipments, the base station simultaneously informs the group of user equipments by using the RRC signaling to release the pSRS resources of the user equipment A on the uplink SCC.
- the RRC signaling is Information containing resources of the periodic sounding reference signal is transmitted to each of a group of user equipment including the second user equipment (User Equipment B).
- the MME signal is used to transmit an activation signal to the second user equipment to activate the second user equipment to transmit the aperiodic transmission on the uplink secondary component carrier. Probe reference signal.
- the group of user equipments are notified by RRC signaling to release the resources of the periodic sounding reference signal. And the first user equipment continues to transmit the periodic sounding reference signal on the uplink secondary component carrier using the resources of the periodic sounding reference signal.
- the base station performs apSRS resource allocation by using PDCCH signaling. Set and activate.
- the base station can freely control the allocation of the pSRS resources. If a user equipment B needs to transmit apSRS on the uplink SCC1 at a certain time, the base station may configure the user equipment A's pSRS resource on the uplink SCC1 to the user equipment B through PDCCH signaling and activate at the same time. Its transmission of apSRS on the upstream SCC1.
- the PDCCH signal includes at least the following parameters: srs-Bandwidth, freqDomainPosition transmissionComb, cyclicShift.
- the base station activates the pSRS transmission of the user equipment A on the uplink SCC through the MAC signaling
- the user equipment A continues to use the pSRS resource on the uplink SCC1 configured for the RRC signaling to transmit the pSRS.
- the information of the resource including the periodic sounding reference signal is transmitted to the second user equipment by using PDCCH signaling, and the second user is activated.
- the device transmits the aperiodic sounding reference signal on the uplink secondary component carrier.
- the first user equipment when the transmission of the periodic sounding reference signal on the uplink secondary component carrier of the first user equipment is reactivated, the first user equipment continues to use the resource of the periodic sounding reference signal in the uplink secondary component.
- a periodic sounding reference signal is transmitted on the carrier.
- FIG. 3 is a block diagram showing an apparatus 300 for transmitting periodic sounding reference signals on uplink secondary component carriers in a carrier aggregation system, in accordance with an embodiment of the present invention.
- an apparatus 300 includes an uplink sub-component carrier configuration unit 310, an activation determination unit 320, a periodic sounding reference signal configuration unit 330, and an activation signaling transmission unit 340.
- the uplink secondary component carrier configuration unit 310 is configured to configure an uplink secondary component carrier for the user equipment.
- the activation determining unit 320 is configured to determine whether an activation triggering event is received, and the activation triggering event is used to activate the user equipment to transmit the periodic sounding reference signal on the uplink secondary component carrier.
- the periodic sounding reference signal configuration unit 330 is configured to configure, for the user equipment, the physical resource parameters required for transmitting the periodic sounding reference signal on the uplink secondary component carrier, if the activation determining unit 320 determines that the activation triggering event is received. .
- the activation signaling transmission unit 340 is configured to transmit information including physical resource parameters configured for the user equipment to the user equipment to activate the user equipment to transmit the periodic detection reference signal on the configured uplink secondary component carrier.
- the periodic sounding reference signal configuration unit 330 is further configured to configure the user equipment for transmitting other parameters of the periodic sounding reference signal on the uplink secondary component carrier.
- the activation signaling transmission unit 340 is further configured to transmit, by using RRC signaling, information including physical resource parameters and other parameters configured for the user equipment to the user equipment, to activate the user equipment to transmit on the uplink secondary component carrier.
- the reference signal is periodically detected.
- the periodic sounding reference signal configuration unit 330 is further configured to configure the user equipment with other parameters for transmitting the periodic sounding reference signal on the uplink secondary component carrier
- the device according to the present invention 300 further includes a configuration signaling transmission unit (not shown) for transmitting information including other parameters configured for the user equipment to the user equipment by RRC signaling, and activating the signaling transmission unit 340 to pass
- the PDCCH signaling transmits information including physical resource parameters configured for the user equipment to the user equipment.
- the device 300 further comprises: a deactivation determining unit (not shown) for determining whether a deactivation triggering event is received, the deactivation triggering event for deactivating the user equipment Transmitting a periodic sounding reference signal on the uplink secondary component carrier; and periodically detecting a reference signal releasing unit (not shown) for instructing to release the periodic detecting if the deactivation determining unit determines that the deactivation triggering event is received
- the information of the resource of the reference signal is sent to the user equipment to release the resources of the periodic sounding reference signal.
- the apparatus 300 further comprises: a deactivation timer (not shown), which is provided to the uplink secondary component carrier for stopping transmission of the periodic sounding reference signal in case of timeout And release the resources of the periodic sounding reference signal.
- a deactivation timer (not shown), which is provided to the uplink secondary component carrier for stopping transmission of the periodic sounding reference signal in case of timeout And release the resources of the periodic sounding reference signal.
- apparatus 300 further includes: a deactivation timer (not shown) that is provided to a downlink secondary component carrier having a link relationship with the uplink secondary component carrier for use in a timeout condition The transmission of the periodic sounding reference signal is stopped and the resource of the periodic sounding reference signal is released.
- a deactivation timer (not shown) that is provided to a downlink secondary component carrier having a link relationship with the uplink secondary component carrier for use in a timeout condition The transmission of the periodic sounding reference signal is stopped and the resource of the periodic sounding reference signal is released.
- FIG. 4 is a block diagram showing an apparatus 400 for transmitting aperiodic sounding reference signals on uplink sub-component carriers in a carrier aggregation system, in accordance with an embodiment of the present invention.
- a device 400 includes a deactivation determining unit 410 and a resource signaling transmission unit 420.
- the deactivation determining unit 410 is configured to determine whether the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment is deactivated.
- the resource signaling transmission unit 420 is configured to: when the deactivation determining unit 410 determines that the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment is deactivated, the periodic sounding reference signal is included The information of the resource is transmitted to the second user equipment, and the second user equipment transmits the aperiodic sounding reference signal on the uplink secondary component carrier.
- the resource signaling transmission unit 420 includes: a configuration signaling transmission unit (not shown) for transmitting information including resources of the periodic sounding reference signal to the RRC signaling through Each of the set of user equipments of the second user equipment; and an activation signaling transmission unit (not shown) for when the second user equipment needs to transmit the aperiodic sounding reference signal on the uplink secondary component carrier And transmitting, by using PDCCH signaling, an activation signal to the second user equipment, to activate the second user equipment to transmit the aperiodic sounding reference signal on the uplink secondary component carrier.
- the resource signaling transmission unit 420 includes: a configuration and activation signaling transmission unit (not shown) for transmitting a non-periodicity on the uplink secondary component carrier when the second user equipment needs to transmit
- a configuration and activation signaling transmission unit (not shown) for transmitting a non-periodicity on the uplink secondary component carrier when the second user equipment needs to transmit
- the information including the resource of the periodic sounding reference signal is transmitted to the second user equipment by using PDCCH signaling, and the second user equipment is activated to transmit the aperiodic sounding reference signal on the uplink secondary component carrier.
- the apparatus 400 further comprises: a reactivation notification unit (not shown) for retransmitting the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment A group of user equipment is notified to release resources of the periodic sounding reference signal.
- a reactivation notification unit (not shown) for retransmitting the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment
- a group of user equipment is notified to release resources of the periodic sounding reference signal.
- the first user equipment continues to use the resource of the periodic sounding reference signal on the uplink secondary component carrier.
- Sexual detection reference signal is reactivation notification unit for retransmitting the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment.
- the apparatus 400 further comprises: re-activating the notification unit (not Shown), the resource for re-activating the first user equipment to continue to use the periodic sounding reference signal transmits the periodic sounding reference signal on the uplink secondary component carrier.
- FIG. 5 is a block diagram showing a wireless communication system 500 in accordance with an embodiment of the present invention.
- the wireless communication system 500 includes a base station 510 and a user equipment 520.
- the base station 510 includes an apparatus 300 for transmitting a periodic sounding reference signal on an uplink secondary component carrier in a carrier aggregation system, as shown in FIG. 3, including an uplink secondary component carrier configuration unit 310, an activation determining unit 320, and periodic detection.
- User equipment 520 includes a signaling receiving unit 521 for receiving signals from base station 510.
- the uplink secondary component carrier configuration unit 310 in the device 300 in the base station 510 configures the uplink secondary component carrier for the user equipment 520.
- the information about the configured uplink secondary component carrier is transmitted by the base station 510 to the user equipment 520.
- the activation determining unit 320 in the device 300 in the base station 510 determines whether an activation triggering event is received, the activation triggering event being used to activate the user equipment 520 to transmit a periodic sounding reference signal on the configured uplink secondary component carrier.
- the periodic sounding reference signal configuration unit 330 in the device 300 in the base station 510 configures the user equipment 520 to transmit a periodic sounding reference on the configured uplink secondary component carrier.
- the activation signaling transmission unit 340 in the device 300 in the base station 510 transmits information including the physical resource parameters configured for the user equipment 520 to the signaling receiving unit 521 in the user equipment 520 to activate the user equipment 520 in the configuration.
- a periodic sounding reference signal is transmitted on the uplink secondary component carrier.
- the user equipment 520 After receiving the signaling transmitted by the activation signaling transmission unit 340, the user equipment 520 needs to transmit the physical resources required for the periodic sounding reference signal on the uplink secondary component carrier configured for the user equipment 520 according to the signaling.
- the information of the parameter transmits a periodic sounding reference signal to the base station 510 on the uplink secondary component carrier through a signaling transmission unit (not shown).
- FIG. 6 is a block diagram showing another wireless communication system 600 in accordance with an embodiment of the present invention.
- the wireless communication system 600 includes a base station 610 and a user equipment 620.
- Base station 610 includes apparatus 400 for transmitting aperiodic sounding reference signals on uplink secondary component carriers in a carrier aggregation system, as shown in FIG. 4, including deactivation determining unit 410 and resource signaling transmission unit 420.
- User equipment 620 includes a signaling receiving unit 621 for receiving signaling from base station 610.
- the deactivation determining unit 410 in the device 400 in the base station 610 determines whether the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment (not shown) is removed. activation. If the transmission of the periodic sounding reference signal on the uplink secondary component carrier by the first user equipment is deactivated, the resource signaling transmission unit 420 in the device 400 in the base station 610 transmits the information of the resource including the periodic sounding reference signal.
- the signaling receiving unit 621 in the second user equipment (that is, the user equipment 620) is configured to transmit, by the second user equipment, the aperiodic sounding reference signal on the uplink secondary component carrier.
- the user equipment 620 After receiving the signaling transmitted by the resource signaling transmission unit 420, the user equipment 620 passes the signaling transmission unit (not shown) in the uplink according to the information of the resource of the periodic sounding reference signal included in the signaling.
- the aperiodic sounding reference signal is transmitted to the base station 610 on the component carrier.
- the object of the present invention can also be achieved by: providing a storage medium storing the above executable program code directly or indirectly to a system or device, and a computer or central processing unit in the system or device (CPU) Reads and executes the above program code.
- a storage medium storing the above executable program code directly or indirectly to a system or device
- a computer or central processing unit in the system or device CPU
- Reads and executes the above program code the embodiment of the present invention is not limited to the program, and the program may be in any form, for example, the target program, the program executed by the interpreter, or provided to the operating system. Scripts, etc.
- machine-readable storage media include, but are not limited to, various memories and storage units, semiconductor devices, disk units such as optical, magnetic, and magneto-optical disks, and other media suitable for storing information and the like.
- the present invention can also be implemented by a computer by connecting to a corresponding website on the Internet and downloading and installing the computer program code according to the present invention into a computer and then executing the program.
- various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the invention.
- the steps of performing the above-described series of processing may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another.
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- Mobile Radio Communication Systems (AREA)
Abstract
本发明公开了一种用于在载波聚合***中的上行次分量载波上传输探测参考信号的方法和设备,其中所述方法包括:为用户设备配置所述上行次分量载波;确定是否接收到激活触发事件,所述激活触发事件用于激活所述用户设备在配置的所述上行次分量载波上传输所述周期性探测参考信号;如果接收到所述激活触发事件,则为所述用户设备配置在配置的所述上行次分量载波上传输所述周期性探测参考信号所需的物理资源参数;以及将包含为所述用户设备配置的所述物理资源参数的信息传输到所述用户设备,以激活所述用户设备在配置的所述上行次分量载波上传输所述周期性探测参考信号。本发明可以提高***的探测参考信号资源利用效率,使得***能够支持更多的用户。
Description
用于在载波聚合***中的上行次分量栽波上传输探测参考信号的方法和设备 技术领域
[01] 本发明涉及移动通信领域, 特别涉及一种用于在载波聚合***中的上行 次分量载波上传输探测参考信号的方法和设备。 背景技术
[02] 随着由第三代合作伙伴计划 ( 3rd Generation Partnership Project , 3GPP ) 启动的通用移动通信*** ( Universal Mobile Telecommunications System , UMTS )技术长期演进 ( Long Term Evolution, LTE )项目的冻结, 3GPP组织 已经开始了对***移动通信***高级长期演进 (LTE-Advanced, LTE-A)技术 的研究。 为了满足国际电信联盟( International Telecommunication Union, ITU ) 提出的针对 4G***的下行 lGbps、 上行 500Mbps的高数据速率要求, 3GPP 在 LTE-A 中提出了载波聚合技术以支持能够提供该速率要求的带宽值。 载波 聚合技术可以把不同频段的多个载波聚合起来组成最大 100M 的带宽, 使 LTE-A的用户设备 ( User Equipment, UE ) 可以在多个载波上接收和 /或发送 数据, 从而使发送或接收数据的带宽大于 20M。 在载波聚合技术中, 每个聚 合的载波称为一个分量载波(component carrier, CC )。 为了便于分量载波的 管理, 进一步将其分为主分量载波 (Primary CC, PCC)和次分量载波 (Secondary CC, SCC)。 对不同的用户设备, 其 PCC和 SCC可以不同, 但每个用户设备 只有一个 PCC。
[03] 上行分量载波中信号的传输包括上行共享信道的传输、 上行控制信道的 传输以及上行周期性探测参考信号 (Periodic Sounding Reference Signal, 以下筒 称为 pSRS)的传输。针对载波聚合***中上行分量载波的传输已经得出了以下 结论:
[04] 对于上行共享信道, 不需要显式的激活信令, 即用户设备收到相应的来 自物理下行控制信道 (PDCCH)的调度信息后即可激活上行共享信道的传输;
[05] 对于上行控制信道, 其传输只可能发生在 PCC上, 即在 SCC上不会传输 上行控制信道。
[06] 对于周期性探测信号的传输, 目前还没有得出任何结论。 但是, PCC 上 的 pSRS传输过程将与 LTE***的 pSRS过程相同, 即按照配置的时间间隔周
期性地传输。 而对于 SCC上的 pSRS传输, 目前有两种观点:
[07] 观点 1 : 一旦为用户设备配置了 SCC, 其上的 pSRS传输过程将与 LTE ***的传输过程相同。
[08] 观点 2: 在某些情况下, 为了节省用户设备的功率和减少对其它用户设备 造成的干扰, 将停止 SCC上的 pSRS传输。 例如, 当用户设备的上行业务量 很小, 基站在一段时间内将不会调度在某一个 SCC上的数据传输, 此时传输 pSRS是没有必要的, 因此在这段时间内可以停止 pSRS的传输。
[09] 可以看出, 上述观点 2更加合理。 但是其存在一个问题:
[10] 按照 LTE的 pSRS配置方法, 当为用户设备配置一个 SCC时, 其 pSRS 资源也会同时被配置。如果在一段时间内用户设备停止了在该 SCC上的 pSRS 的传输, 那么这些用于 pSRS传输的资源就会被浪费。 在 LTE-A***中, 由于 引入了上行多用户 MIMO技术,需要更多的 SRS资源来支持多个天线上的 SRS 传输。 目前, 很多公司已经提出了增加 SRS 容量的方法。 因此, 这种 pSRS 资源的浪费更加需要避免。
[11] 为了解决上述在上行 SCC上可能出现的 pSRS资源浪费的问题, 提出了 本发明。 发明内容
[12] 在下文中给出了关于本发明的筒要概述, 以便提供关于本发明的某些方 面的基本理解。 但是, 应当理解, 这个概述并不是关于本发明的穷举性概述。 它并不是意图用来确定本发明的关键性部分或重要部分,也不是意图用来限定 本发明的范围。其目的仅仅是以筒化的形式给出关于本发明的某些概念, 以此 作为稍后给出的更详细描述的前序。
[13] 鉴于现有技术的上述情形, 本发明的目的是提供一种用于在载波聚合系 统中的上行次分量载波上传输探测参考信号的方法和设备,其能够克服上述现 有技术的缺点和不足, 以有效利用探测参考信号的资源。
[14] 为了实现上述目的, 根据本发明的一方面, 提供了一种用于在载波聚合 ***中的上行次分量载波上传输周期性探测参考信号的方法, 该方法包括: 为 用户设备配置所述上行次分量载波; 确定是否接收到激活触发事件, 所述激活 触发事件用于激活所述用户设备在配置的所述上行次分量载波上传输所述周
期性探测参考信号; 如果接收到所述激活触发事件, 则为所述用户设备配置在 配置的所述上行次分量载波上传输所述周期性探测参考信号所需的物理资源 参数;以及将包含为所述用户设备配置的所述物理资源参数的信息传输到所述 用户设备,以激活所述用户设备在配置的所述上行次分量载波上传输所述周期 性探测参考信号。
[15] 根据本发明的另一方面, 提供了一种用于在载波聚合***中的上行次分 量载波上传输非周期性探测参考信号的方法, 该方法包括: 确定第一用户设备 在所述上行次分量载波上的周期性探测参考信号的传输是否被去激活;以及如 果所述第一用户设备在所述上行次分量载波上的周期性探测参考信号的传输 被去激活,则将包含所述周期性探测参考信号的资源的信息传输到第二用户设 备,用于所述第二用户设备在所述上行次分量载波上传输非周期性探测参考信 号。
[16] 根据本发明的另一方面, 提供了一种用于在载波聚合***中的上行次分 量载波上传输周期性探测参考信号的设备, 该设备包括: 上行次分量载波配置 单元, 用于为用户设备配置所述上行次分量载波; 激活确定单元, 用于确定是 否接收到激活触发事件,所述激活触发事件用于激活所述用户设备在所述上行 次分量载波上传输所述周期性探测参考信号; 周期性探测参考信号配置单元, 用于在所述激活确定单元确定接收到所述激活触发事件的情况下,为所述用户 设备配置在所述上行次分量载波上传输所述周期性探测参考信号所需的物理 资源参数; 以及激活信令传输单元, 用于将包含为所述用户设备配置的所述物 理资源参数的信息传输到所述用户设备,以激活所述用户设备在配置的所述上 行次分量载波上传输所述周期性探测参考信号。
[17] 根据本发明的另一方面, 提供了一种用于在载波聚合***中的上行次分 量载波上传输非周期性探测参考信号的设备, 该设备包括: 去激活确定单元, 用于确定第一用户设备在所述上行次分量载波上的周期性探测参考信号的传 输是否被去激活; 以及资源信令传输单元, 用于在所述去激活确定单元确定所 述第一用户设备在所述上行次分量载波上的周期性探测参考信号的传输被去 激活的情况下,将包含所述周期性探测参考信号的资源的信息传输到第二用户 设备,用于所述第二用户设备在所述上行次分量载波上传输非周期性探测参考 信号。
[18] 根据本发明的另一方面, 还提供了一种无线通信***, 包括基站和用户
设备,所述基站包括根据本发明的用于在载波聚合***中的上行次分量载波上 传输周期性探测参考信号的设备, 所述用户设备包括信令接收单元, 所述信令 接收单元用于接收来自所述基站的信令。
[19] 根据本发明的另一方面, 还提供了一种无线通信***, 包括基站和用户 设备,所述基站包括根据本发明的用于在载波聚合***中的上行次分量载波上 传输非周期性探测参考信号的设备, 所述用户设备包括信令接收单元, 所述信 令接收单元用于接收来自所述基站的信令。
[20] 根据本发明的另一方面, 还提供了一种程序产品, 其包括存储在其中的 机器可读指令代码, 其中, 所述指令代码当由计算机读取和执行时, 能够使所 述计算机执行根据本发明的用于在载波聚合***中的上行次分量载波上传输 探测参考信号的方法。
[21] 根据本发明的另一方面, 还提供了一种计算机可读介质, 其上记录有用 于实现上述用于在载波聚合***中的上行次分量载波上传输探测参考信号的 方法的计算机程序代码。
[22] 在本发明的上述技术方案中, 将用户设备的上行次分量载波的配置与探 测参考信号资源的配置相分离。这样一来,通过在需要时才向用户设备配置探 测参考信号的资源并激活探测参考信号的传输,就可以避免用户设备在某个上 行 SCC上不进行周期性探测参考信号传输时对其物理资源的浪费, 从而提高 ***的探测参考信号资源利用效率, 使得***能够支持更多的用户。 附图说明
[23] 本发明可以通过参考下文中结合附图所给出的详细描述而得到更好的理 解,其中在所有附图中使用了相同或相似的附图标记来表示相同或者相似的部 件。所述附图连同下面的详细说明一起包含在本说明书中并形成说明书的一部 分, 用来进一步举例说明本发明的优选实施例和解释本发明的原理和优点。在 附图中:
[24] 图 1 是示出根据本发明实施例的用于在载波聚合***中的上行次分量载 波上传输周期性探测参考信号的方法的流程图;
[25] 图 2是示出根据本发明实施例的用于在载波聚合***中的上行次分量载 波上传输非周期性探测参考信号的方法的流程图;
[26] 图 3是示出根据本发明实施例的用于在载波聚合***中的上行次分量载 波上传输周期性探测参考信号的设备的框图;
[27] 图 4是示出根据本发明实施例的用于在载波聚合***中的上行次分量载 波上传输非周期性探测参考信号的设备的框图;
[28] 图 5是示出根据本发明实施例的无线通信***的框图; 以及
[29] 图 6是示出根据本发明实施例的另一无线通信***的框图。
[30] 本领域技术人员应当理解, 附图中的元件仅仅是为了筒单和清楚起见而 示出的, 而且不一定是按比例绘制的。 例如, 附图中某些元件的尺寸可能相对 于其它元件放大了, 以便有助于提高对本发明实施例的理解。 具体实施方式
[31] 在下文中将结合附图对本发明的示范性实施例进行描述。 为了清楚和筒 明起见, 在说明书中并未描述实际实施方式的所有特征。 然而, 应该了解, 在 开发任何这种实际实施例的过程中必须做出很多特定于实施方式的决定,以便 实现开发人员的具体目标, 例如, 符合与***及业务相关的那些限制条件, 并 且这些限制条件可能会随着实施方式的不同而有所改变。 此外, 还应该了解, 虽然开发工作有可能是非常复杂和费时的,但对得益于本公开内容的本领域技 术人员来说, 这种开发工作仅仅是例行的任务。
[32] 在此, 还需要说明的一点是, 为了避免因不必要的细节而模糊了本发明, 在附图中仅仅示出了与根据本发明的方案密切相关的装置结构和 /或处理步 骤, 而省略了与本发明关系不大的其它细节。
[33] 下面参照附图详细描述根据本发明实施例的用于在载波聚合***中的上 行次分量载波上传输探测参考信号的方法和设备。
[34] 图 1 是示出根据本发明实施例的用于在载波聚合***中的上行次分量载 波上传输周期性探测参考信号的方法的流程图。
[35] 如图 1所示, 首先, 在步骤 S110, 为用户设备配置上行次分量载波。
[36] 根据本发明的实施例, 基站在为用户设备配置上行 SCC时, 并不同时配 置其 pSRS资源, 而是在随后的过程中, 根据某一事件当基站决定触发用户设 备在其某一个已配置的上行 SCC上的 pSRS的传输时才会通过信令来为所述 用户设备在所述上行 SCC上配置 pSRS资源。
[37] 下一步, 在步骤 S120, 确定是否接收到激活触发事件, 所述激活触发事 件用于激活用户设备在配置的上行次分量载波上传输周期性探测参考信号。
[38] 例如, 当用户设备报告的緩存长度超过某一个预定义的门限值时, 为了 能在上行 SCC上进行数据调度,基站可以激活所述上行 SCC上的 pSRS传输; 当用户设备报告的緩存长度低于某一个预定义的门限值,基站决定停止在所述 上行 SCC上为所述用户设备调度数据, 那么基站可以去激活所述上行 SCC上 的 pSRS传输。 再例如, 当基站激活了用户设备的某个下行 SCC后, 基站可 以同时激活与所述下行 SCC具有链接关系的上行 SCC的 pSRS传输; 当基站 去激活了用户设备的某个下行 SCC后, 基站可以同时去激活与所述下行 SCC 具有链接关系的上行 SCC的 pSRS传输。
[39] 下一步, 在步骤 S130, 如果在步骤 S120确定接收到激活触发事件, 则为 用户设备配置在配置的上行次分量载波上传输周期性探测参考信号所需的物 理资源参数。
[40] 根据本发明的实施例, 为用户设备配置上行次分量载波和为用户设备配 置在配置的上行次分量载波上传输周期性探测参考信号所需的物理资源参数 是分开进行的。 这样一来, 就可以避免用户设备在某个上行 SCC上不进行周 期性探测参考信号传输时对其物理资源的浪费,从而提高***的探测参考信号 资源利用效率, 使得***能够支持更多的用户。
[41] 最后, 在步骤 S140, 将包含为用户设备配置的物理资源参数的信息传输 到用户设备,以激活用户设备在配置的上行次分量载波上传输周期性探测参考 信号。
[42] 根据本发明的实施例, 对于周期性探测参考信号的去激活, 包括但不限 于以下三种方案。
[43] 第一种方案是, 确定是否接收到去激活触发事件, 所述去激活触发事件 用于去激活用户设备在配置的上行次分量载波上传输周期性探测参考信号;以 及如果接收到去激活触发事件,则将指示释放周期性探测参考信号的资源的信 息发送到用户设备, 以释放周期性探测参考信号的资源。
[44] 第二种方案是, 为配置的上行次分量载波设置去激活计时器; 以及当去 激活计时器超时后, 释放周期性探测参考信号的资源。
[45] 第三种方案是, 为与配置的上行次分量载波具有链接关系的下行次分量
载波设置去激活计时器; 以及当去激活计时器超时后,释放周期性探测参考信 号的资源。
[46] 为了进一步描述本发明, 下面结合具体的实施例来描述本发明的用于在 载波聚合***中的上行次分量载波上传输周期性探测参考信号的方法。
第一实施例
[47] 根据本发明的第一实施例的用于在载波聚合***中的上行次分量载波上 传输周期性探测参考信号的方法是一种一步管理方法,即只通过无线资源控制
(Radio Resource Control, RRC)信令配置, 其具体步骤如下。
[48] 首先, 当基站为用户设备配置一个上行 SCC时, 其 pSRS的初始状态设 为 "release" , 即不为所述用户设备在所述上行 SCC上配置任何 pSRS相关的 资源。
[49] 其次,基站根据某些事件来激活或者去激活用户设备在上行 SCC的 pSRS 传输。在上文中已提到了一些激活触发事件和去激活触发事件的例子,在此不 再赘述。
[50] 然后, 根据触发事件, 如果基站决定激活用户设备在某一个已配置的上 行 SCC上传输 pSRS时,基站通过 RRC信令为所述用户设备在所述上行 SCC 上配置 pSRS传输所需的参数,同时激活所述 pSRS的传输。其传输过程与 LTE ***中的传输过程相同。
[51] 在本实施例中, 在接收到激活触发事件之后, 在为用户设备配置在配置 的上行次分量载波上传输周期性探测参考信号所需的物理资源参数的同时,根 据本发明的方法还为用户设备配置用于在配置的上行次分量载波上传输周期 性探测参考信号的其它参数, 并且通过 RRC信令将包含为用户设备配置的物 理资源参数和其它参数的信息传输到用户设备,以激活用户设备在配置的上行 次分量载波上传输周期性探测参考信号。
[52] 最后, 对于 SRS的去激活, 在本实施例中的三种方案具体实施如下。
[53] 在第一种方案中, 根据触发事件, 如果基站决定去激活用户设备在某一 个已配置的上行 SCC上传输 pSRS时, 基站通过 RRC信令将 pSRS的状态设 为 "release"。
[54] 在第二种方案中, 基站和用户设备为每一个配置的上行 SCC共同维持一
个 pSRS去激活计时器。 当接收到对上行 SCC的调度信令后, 重启所述上行 SCC 的 pSRS 去激活计时器。 当该计时器超时后, 用户设备停止在所述上行 SCC上的 pSRS的传输,同时基站和用户设备释放所述上行 SCC的 pSRS资源。
[55] 在第三种方案中, 当用户设备的某一个下行 SCC因为其去激活计时器超 时而被去激活时, 用户设备同时停止与该下行 SCC具有链接关系的上行 SCC 的 pSRS传输, 基站和用户设备释放所述上行 SCC的 pSRS资源。
第二实施例
[56] 根据本发明的第二实施例的用于在载波聚合***中的上行次分量载波上 传输周期性探测参考信号的方法是一种两步管理方法, 即 RRC 配置加上 PDCCH激活 /去激活, 其具体步骤如下。
[57] 首先, 当基站为用户设备配置一个上行 SCC时, 其 pSRS的初始状态设 为 "setup" , 但是此时只为用户设备配置一个 pSRS参数, 即 srs-ConfigIndex。 该参数的作用是确定 pSRS传输的周期及在每帧中的偏移值。
[58] 在本实施例中, 在为用户设备配置上行次分量载波时, 根据本发明的方 法进一步为用户设备配置用于在配置的上行次分量载波上传输周期性探测参 考信号的其它参数, 所述其它参数是除了物理资源参数之外的参数 (例如 srs-Configlndex ), 并且通过 RRC信令将包含为用户设备配置的其它参数的信 息传输到用户设备。
[59] 其次,基站根据某些事件来激活或者去激活用户设备在上行 SCC的 pSRS 传输。
[60] 然后, 根据触发事件, 如果基站决定激活用户设备在某一个已配置的上 行 SCC上传输 pSRS时, 基站通过 PDCCH信令为所述用户设备在所述上行 SCC上配置 pSRS传输所需的物理资源。 所述的 PDCCH信令中至少需要包括 以下的参数: srs-Bandwidth, srs-HoppingBandwidth, freqDomainPosition, transmissionComb, cyclicShift。用户设备收到该 PDCCH信令后,激活所述 pSRS 的传输。 其传输过程与 LTE***中的传输过程相同。
[61] 在根据本实施例的方法中, 将包含为用户设备配置的物理资源参数的信 息传输到用户设备的步骤是通过 PDCCH信令执行的。
[62] 最后, 对于 SRS的去激活, 在本实施例中的三种方案具体实施如下。
[63] 在第一种方案中, 根据触发事件, 如果基站决定去激活用户设备在某一 个已配置的上行 SCC上传输 pSRS时,基站通过 PDCCH信令去激活所述用户 设备在所述上行 SCC上的 pSRS传输, 同时基站和所述用户设备释放所述上 行 SCC的 pSRS资源。
[64] 在第二和第三种方案中, 本实施例的 SRS去激活方式与第一实施例中的 第二和第三种方案相同, 在此不再赘述。
[65] 下面进一步结合附图来描述根据本发明实施例的用于在载波聚合***中 的上行次分量载波上传输非周期性探测参考信号的方法。
[66] 图 2是示出根据本发明实施例的用于在载波聚合***中的上行次分量载 波上传输非周期性探测参考信号的方法的流程图。
[67] 如图 2所示, 首先, 在步骤 S210, 确定第一用户设备在上行次分量载波 上的周期性探测参考信号的传输是否被去激活。
[68] 针对上行 SCC的激活 /去激活, 存在一种 RRC信令配置加上 MAC信令 激活 /去激活的方法,即基站在为用户设备配置上行 SCC时同时为其配置 pSRS 资源,但用户设备是否传输 pSRS需要通过 MAC激活 /去激活信令来进行控制。 当上行 SCC激活后,用户设备开始其上的 pSRS传输; 当上行 SCC去激活后, 用户设备停止其上的 pSRS传输。 针对该方法, 为了提高其空闲 pSRS资源的 利用率, 当基站通过 MAC信令去激活用户设备在某一个已配置的上行 SCC 上的 pSRS传输后, 基站和用户设备默认为所述 pSRS资源已经释放。 在所述 用户设备(第一用户设备)在所述的上行 SCC处于去激活状态期间, 基站可 以自由控制所述 pSRS 资源的分配, 将其分给其他用户设备用于非周期 SRS(aperiodic SRS, 以下筒称为 apSRS )的传输。
[69] 接下来, 在步骤 S220, 如果第一用户设备在上行次分量载波上的周期性 探测参考信号的传输被去激活,则基站将包含第一用户设备周期性探测参考信 号的资源的信息传输到第二用户设备,用于第二用户设备在上行次分量载波上 传输非周期性探测参考信号。
[70] 根据本发明的实施例,一个用户设备的空闲 pSRS资源可以由基站分配给 其他用户设备用于 apSRS 的传输。 这样一来, 就可以提高***的探测参考信 号资源利用效率, 使得***能够支持更多的用户。
[71] 为了进一步描述本发明, 下面结合具体的实施例来描述本发明的用于在
载波聚合***中的上行次分量载波上传输非周期性探测参考信号的方法。
第三实施例
[72] 根据本发明的第三实施例, 基站通过 RRC信令进行 apSRS资源的配置, 通过 PDCCH信令进行 apSRS的激活。
[73] 具体地, 当基站通过 MAC信令去激活用户设备 A在某一个已配置的上 行 SCC上的 pSRS传输后,基站将所述的 pSRS传输所用的资源通过 RRC信 令配置给一组用户设备。 所述 RRC信令中至少包含如下参数: srs-Bandwidth, freqDomainPosition, transmissionComb, cyclicShift。
[74] 当所述一组用户设备中的某一个用户设备 B需要传输 apSRS时, 基站通 过 PDCCH信令激活所述用户设备 B的 apSRS的传输。该 PDCCH信令中需要 至少包含 lbit的信息用于指示 apSRS的激活。
[75] 当基站通过 MAC信令激活用户设备 A在上行 SCC上的 pSRS传输后, 用户设备 A继续使用之前通过 RRC信令为其配置的上行 SCC上的 pSRS资源 传输 pSRS。 如果基站已经将所述 pSRS的资源分配给了其他一组用户设备, 那么基站同时会通过 RRC信令通知所述的一组用户设备释放所述的用户设 备 A在上行 SCC上的 pSRS资源。
[76] 在根据本发明的第三实施例的方法中, 在第一用户设备(用户设备 A ) 在上行次分量载波上的周期性探测参考信号的传输被去激活之后, 通过 RRC 信令将包含周期性探测参考信号的资源的信息传输到包括第二用户设备(用户 设备 B )的一组用户设备中的每一个用户设备。 当第二用户设备需要在上行次 分量载波上传输非周期性探测参考信号时,通过 PDCCH信令向第二用户设备 传输激活信号,以激活第二用户设备在上行次分量载波上传输非周期性探测参 考信号。
[77] 在当前实施例中, 当第一用户设备在上行次分量载波上的周期性探测参 考信号的传输被重新激活时, 通过 RRC信令通知一组用户设备释放周期性探 测参考信号的资源,并且第一用户设备继续使用周期性探测参考信号的资源在 上行次分量载波上传输周期性探测参考信号。
第四实施例
[78] 根据本发明的第四实施例, 基站通过 PDCCH信令进行 apSRS资源的配
置和激活。
[79] 具体地, 当基站通过 MAC信令去激活用户设备 A在某一个已配置的上 行 SCC1上的 pSRS传输后,基站可以自由控制所述 pSRS资源的分配。 如果 在某一时刻, 某一用户设备 B需要在上行 SCC1上传输 apSRS时, 基站可以 将所述的用户设备 A在上行 SCC1上的 pSRS资源通过 PDCCH信令配置给所 述用户设备 B并同时激活其在上行 SCC1上的 apSRS的传输。 所述 PDCCH 信 令 中 至 少 包 含如 下 参数 : srs-Bandwidth, freqDomainPosition transmissionComb, cyclicShift。
[80] 当基站通过 MAC信令激活用户设备 A在上行 SCC上的 pSRS传输后, 用户设备 A继续使用之前通过 RRC信令为其配置的上行 SCC1上的 pSRS资 源传输 pSRS。
[81] 在根据本发明的第四实施例的方法中, 在第一用户设备(用户设备 A ) 在上行次分量载波上的周期性探测参考信号的传输被去激活之后,当第二用户 设备(用户设备 B )需要在同一个上行次分量载波上传输非周期性探测参考信 号时,通过 PDCCH信令将包含周期性探测参考信号的资源的信息传输到第二 用户设备,并激活第二用户设备在所述上行次分量载波上传输非周期性探测参 考信号。
[82] 在当前实施例中, 当第一用户设备在上行次分量载波上的周期性探测参 考信号的传输被重新激活时,第一用户设备继续使用周期性探测参考信号的资 源在上行次分量载波上传输周期性探测参考信号。
[83] 下面进一步结合附图来描述根据本发明实施例的用于在载波聚合***中 的上行次分量载波上传输周期性探测参考信号的设备。图 3是示出根据本发明 实施例的用于在载波聚合***中的上行次分量载波上传输周期性探测参考信 号的设备 300的框图。
[84] 如图 3所示, 根据本发明的实施例的设备 300包括上行次分量载波配置 单元 310、 激活确定单元 320、 周期性探测参考信号配置单元 330和激活信令 传输单元 340。
[85] 上行次分量载波配置单元 310用于为用户设备配置上行次分量载波。
[86] 激活确定单元 320用于确定是否接收到激活触发事件, 所述激活触发事 件用于激活用户设备在上行次分量载波上传输周期性探测参考信号。
[87] 周期性探测参考信号配置单元 330用于在激活确定单元 320确定接收到 激活触发事件的情况下,为用户设备配置在上行次分量载波上传输周期性探测 参考信号所需的物理资源参数。
[88] 激活信令传输单元 340用于将包含为用户设备配置的物理资源参数的信 息传输到用户设备,以激活用户设备在配置的上行次分量载波上传输周期性探 测参考信号。
[89] 根据本发明的优选实施例, 周期性探测参考信号配置单元 330进一步用 于为用户设备配置用于在上行次分量载波上传输周期性探测参考信号的其它 参数。 在这种情况下, 激活信令传输单元 340进一步用于通过 RRC信令将包 含为用户设备配置的物理资源参数和其它参数的信息传输到用户设备,以激活 用户设备在上行次分量载波上传输周期性探测参考信号。
[90] 根据本发明的优选实施例, 周期性探测参考信号配置单元 330进一步用 于为用户设备配置用于在上行次分量载波上传输周期性探测参考信号的其它 参数, 并且根据本发明的设备 300进一步包括配置信令传输单元(未示出), 该配置信令传输单元用于通过 RRC信令将包含为用户设备配置的其它参数的 信息传输到用户设备,并且激活信令传输单元 340通过 PDCCH信令将包含为 用户设备配置的物理资源参数的信息传输到用户设备。
[91] 根据本发明的优选实施例, 设备 300进一步包括: 去激活确定单元(未 示出), 用于确定是否接收到去激活触发事件, 所述去激活触发事件用于去激 活用户设备在上行次分量载波上传输周期性探测参考信号;以及周期性探测参 考信号释放单元(未示出), 用于在去激活确定单元确定接收到去激活触发事 件的情况下, 将指示释放周期性探测参考信号的资源的信息发送到用户设备, 以释放周期性探测参考信号的资源。
[92] 根据本发明的优选实施例, 设备 300进一步包括: 去激活计时器(未示 出), 其被提供给上行次分量载波, 用于在超时的情况下停止周期性探测参考 信号的发送并释放周期性探测参考信号的资源。
[93] 根据本发明的优选实施例, 设备 300进一步包括: 去激活计时器(未示 出), 其被提供给与上行次分量载波具有链接关系的下行次分量载波, 用于在 超时的情况下停止周期性探测参考信号的发送并释放周期性探测参考信号的 资源。
[94] 该设备 300 中的上述各个单元的各种具体实施方式前面已经作过详细描 述, 在此不再重复说明。
[95] 图 4是示出根据本发明实施例的用于在载波聚合***中的上行次分量载 波上传输非周期性探测参考信号的设备 400的框图。
[96] 如图 4所示, 根据本发明的实施例的设备 400包括去激活确定单元 410 和资源信令传输单元 420。
[97] 去激活确定单元 410用于确定第一用户设备在上行次分量载波上的周期 性探测参考信号的传输是否被去激活。
[98] 资源信令传输单元 420用于在去激活确定单元 410确定第一用户设备在 上行次分量载波上的周期性探测参考信号的传输被去激活的情况下,将包含周 期性探测参考信号的资源的信息传输到第二用户设备,用于第二用户设备在上 行次分量载波上传输非周期性探测参考信号。
[99] 根据本发明的优选实施例, 资源信令传输单元 420 包括: 配置信令传输 单元(未示出 ), 用于通过 RRC信令将包含周期性探测参考信号的资源的信息 传输到包括第二用户设备的一组用户设备中的每一个用户设备;以及激活信令 传输单元(未示出), 用于当第二用户设备需要在上行次分量载波上传输非周 期性探测参考信号时, 通过 PDCCH信令向第二用户设备传输激活信号, 以激 活第二用户设备在上行次分量载波上传输非周期性探测参考信号。
[100] 根据本发明的优选实施例, 资源信令传输单元 420 包括: 配置与激活信 令传输单元(未示出), 用于当第二用户设备需要在上行次分量载波上传输非 周期性探测参考信号时,通过 PDCCH信令将包含周期性探测参考信号的资源 的信息传输到第二用户设备,并激活第二用户设备在上行次分量载波上传输非 周期性探测参考信号。
[101] 根据本发明的优选实施例,设备 400进一步包括: 重新激活通知单元(未 示出), 用于当第一用户设备在上行次分量载波上的周期性探测参考信号的传 输被重新激活时,通知一组用户设备释放周期性探测参考信号的资源。在这种 情况下,在接收到一组用户设备已释放周期性探测参考信号的资源的反馈确认 信令之后,第一用户设备继续使用周期性探测参考信号的资源在上行次分量载 波上传输周期性探测参考信号。
[102] 根据本发明的优选实施例,设备 400进一步包括: 重新激活通知单元(未
示出 ), 用于重新激活第一用户设备继续使用周期性探测参考信号的资源在上 行次分量载波上传输周期性探测参考信号。
[103] 该设备 400 中的上述各个单元的各种具体实施方式前面已经作过详细描 述, 在此不再重复说明。
[104] 本发明的上述方法和设备可以用在无线通信***中。 图 5是示出根据本 发明实施例的无线通信*** 500的框图。
[105] 如图 5所示, 无线通信*** 500包括基站 510和用户设备 520。 基站 510 包括如图 3 所示的用于在载波聚合***中的上行次分量载波上传输周期性探 测参考信号的设备 300, 其包括上行次分量载波配置单元 310、 激活确定单元 320、 周期性探测参考信号配置单元 330和激活信令传输单元 340。 用户设备 520包括信令接收单元 521 , 该信令接收单元 521用于接收来自基站 510的信 令。
[106] 根据本发明的实施例, 基站 510中的设备 300中的上行次分量载波配置 单元 310为用户设备 520配置上行次分量载波。关于配置的上行次分量载波的 信息由基站 510发送到用户设备 520, 这属于现有技术, 并不涉及本发明的内 容, 所以在此并未详述。 然后, 基站 510中的设备 300中的激活确定单元 320 确定是否接收到激活触发事件,所述激活触发事件用于激活用户设备 520在配 置的上行次分量载波上传输周期性探测参考信号。 下一步,如果激活确定单元 320确定接收到激活触发事件, 则基站 510中的设备 300中的周期性探测参考 信号配置单元 330为用户设备 520配置在配置的上行次分量载波上传输周期性 探测参考信号所需的物理资源参数。 最后,基站 510中的设备 300中的激活信 令传输单元 340将包含为用户设备 520配置的物理资源参数的信息传输到用户 设备 520中的信令接收单元 521 , 以激活用户设备 520在配置的上行次分量载 波上传输周期性探测参考信号。
[107] 用户设备 520在接收到激活信令传输单元 340传输的信令之后, 根据信 令中包含的为用户设备 520 配置的在上行次分量载波上传输周期性探测参考 信号所需的物理资源参数的信息, 通过信令传输单元(未示出)在上行次分量 载波上向基站 510传输周期性探测参考信号。
[108] 无线通信*** 500 中的上述各个设备或单元的各种具体实施方式前面已 经作过详细描述, 同样在此不再重复说明。
[109] 图 6是示出根据本发明实施例的另一无线通信*** 600的框图。
[110] 如图 6所示, 无线通信*** 600包括基站 610和用户设备 620。 基站 610 包括如图 4 所示的用于在载波聚合***中的上行次分量载波上传输非周期性 探测参考信号的设备 400, 其包括去激活确定单元 410 和资源信令传输单元 420。 用户设备 620包括信令接收单元 621 , 该信令接收单元 621用于接收来 自基站 610的信令。
[111] 根据本发明的实施例, 基站 610中的设备 400中的去激活确定单元 410 确定第一用户设备(未示出)在上行次分量载波上的周期性探测参考信号的传 输是否被去激活。如果第一用户设备在上行次分量载波上的周期性探测参考信 号的传输被去激活,则基站 610中的设备 400中的资源信令传输单元 420将包 含周期性探测参考信号的资源的信息传输到第二用户设备(亦即用户设备 620 ) 中的信令接收单元 621 , 用于第二用户设备在上行次分量载波上传输非 周期性探测参考信号。
[112] 用户设备 620在接收到资源信令传输单元 420传输的信令之后, 根据信 令中包含的周期性探测参考信号的资源的信息, 通过信令传输单元(未示出) 在上行次分量载波上向基站 610传输非周期性探测参考信号。
[113] 无线通信*** 600 中的上述各个设备或单元的各种具体实施方式前面已 经作过详细描述, 同样在此不再重复说明。
[114] 显然, 根据本发明的上述方法的各个操作过程可以以存储在各种机器可 读的存储介质中的计算机可执行程序的方式实现。
[115] 而且, 本发明的目的也可以通过下述方式实现: 将存储有上述可执行程 序代码的存储介质直接或者间接地提供给***或设备,并且该***或设备中的 计算机或者中央处理单元(CPU )读出并执行上述程序代码。 此时, 只要该系 统或者设备具有执行程序的功能, 则本发明的实施方式不局限于程序, 并且该 程序也可以是任意的形式, 例如, 目标程序、 解释器执行的程序或者提供给操 作***的脚本程序等。
[116] 上述这些机器可读存储介质包括但不限于: 各种存储器和存储单元, 半 导体设备, 磁盘单元例如光、 磁和磁光盘, 以及其它适于存储信息的介质等。
[117] 另外, 计算机通过连接到因特网上的相应网站, 并且将依据本发明的计 算机程序代码下载和安装到计算机中然后执行该程序, 也可以实现本发明。
[118] 在本发明的设备和方法中, 显然, 各部件或各步骤是可以分解和 /或重新 组合的。 这些分解和 /或重新组合应视为本发明的等效方案。 并且, 执行上述 系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一 定按照时间顺序执行。 某些步骤可以并行或彼此独立地执行。
[119] 以上虽然结合附图详细描述了本发明的实施例, 但是应当明白, 上面所 描述的实施方式只是用于说明本发明, 而并不构成对本发明的限制。对于本领 域的技术人员来说,可以对上述实施方式作出各种修改和变更而没有背离本发 明的实质和范围。 因此, 本发明的范围仅由所附的权利要求及其等效含义来限 定。
Claims
1、 一种用于在载波聚合***中的上行次分量载波上传输周期性探测参考 信号的方法, 包括:
为用户设备配置所述上行次分量载波;
确定是否接收到激活触发事件,所述激活触发事件用于激活所述用户设备 在配置的所述上行次分量载波上传输所述周期性探测参考信号;
如果接收到所述激活触发事件,则为所述用户设备配置在配置的所述上行 次分量载波上传输所述周期性探测参考信号所需的物理资源参数; 以及
将包含为所述用户设备配置的所述物理资源参数的信息传输到所述用户 设备,以激活所述用户设备在配置的所述上行次分量载波上传输所述周期性探 测参考信号。
2、 如权利要求 1所述的方法, 其中, 在如果接收到所述激活触发事件则 为所述用户设备配置在配置的所述上行次分量载波上传输所述周期性探测参 考信号所需的物理资源参数的同时, 所述方法进一步包括: 为所述用户设备配 置用于在配置的所述上行次分量载波上传输所述周期性探测参考信号的其它 参数; 并且
通过无线资源控制信令将包含为所述用户设备配置的所述物理资源参数 和所述其它参数的信息传输到所述用户设备,以激活所述用户设备在配置的所 述上行次分量载波上传输所述周期性探测参考信号。
3、 如权利要求 1所述的方法, 其中, 在为所述用户设备配置所述上行次 分量载波时, 所述方法进一步包括:
为所述用户设备配置用于在配置的所述上行次分量载波上传输所述周期 性探测参考信号的其它参数,所述其它参数是除了所述物理资源参数之外的参 数; 以及
通过无线资源控制信令将包含为所述用户设备配置的所述其它参数的信 息传输到所述用户设备; 并且
其中,将包含为所述用户设备配置的所述物理资源参数的信息传输到所述 用户设备是通过物理下行控制信道信令执行的。
4、 如权利要求 1所述的方法, 进一步包括: 确定是否接收到去激活触发事件,所述去激活触发事件用于去激活所述用 户设备在配置的所述上行次分量载波上传输所述周期性探测参考信号; 以及 如果接收到所述去激活触发事件,则将指示释放所述周期性探测参考信号 的资源的信息发送到所述用户设备,以释放所述周期性探测参考信号的所述资 源。
5、 如权利要求 1所述的方法, 进一步包括:
向配置的所述上行次分量载波提供去激活计时器; 以及
当所述去激活计时器超时时, 释放所述周期性探测参考信号的资源。
6、 如权利要求 1所述的方法, 进一步包括:
向与配置的所述上行次分量载波具有链接关系的下行次分量载波提供去 激活计时器; 以及
当所述去激活计时器超时时, 释放所述周期性探测参考信号的资源。
7、 一种用于在载波聚合***中的上行次分量载波上传输非周期性探测参 考信号的方法, 包括:
确定第一用户设备在所述上行次分量载波上的周期性探测参考信号的传 输是否被去激活; 以及
如果所述第一用户设备在所述上行次分量载波上的周期性探测参考信号 的传输被去激活,则将包含所述周期性探测参考信号的资源的信息传输到第二 用户设备,用于所述第二用户设备在所述上行次分量载波上传输非周期性探测 参考信号。
8、 如权利要求 7所述的方法, 其中, 将包含所述周期性探测参考信号的 资源的信息传输到第二用户设备包括:
通过无线资源控制信令将包含所述周期性探测参考信号的资源的信息传 输到包括所述第二用户设备的一组用户设备中的每一个用户设备; 以及
当所述第二用户设备需要在所述上行次分量载波上传输非周期性探测参 考信号时,通过物理下行控制信道信令向所述第二用户设备传输激活信号, 以 激活所述第二用户设备在所述上行次分量载波上传输所述非周期性探测参考 信号。
9、 如权利要求 7所述的方法, 其中, 将包含所述周期性探测参考信号的 资源的信息传输到第二用户设备包括:
当所述第二用户设备需要在所述上行次分量载波上传输非周期性探测参 考信号时,通过物理下行控制信道信令将包含所述周期性探测参考信号的资源 的信息传输到所述第二用户设备,并激活所述第二用户设备在所述上行次分量 载波上传输所述非周期性探测参考信号。
10、 如权利要求 8所述的方法, 进一步包括:
当所述第一用户设备在所述上行次分量载波上的周期性探测参考信号的 传输被重新激活时,通知所述一组用户设备释放所述周期性探测参考信号的资 源; 以及
所述第一用户设备继续使用所述周期性探测参考信号的所述资源在所述 上行次分量载波上传输所述周期性探测参考信号。
11、 如权利要求 9所述的方法, 进一步包括:
当所述第一用户设备在所述上行次分量载波上的周期性探测参考信号的 传输被重新激活时,所述第一用户设备继续使用所述周期性探测参考信号的所 述资源在所述上行次分量载波上传输所述周期性探测参考信号。
12、一种用于在载波聚合***中的上行次分量载波上传输周期性探测参考 信号的设备, 包括:
上行次分量载波配置单元, 用于为用户设备配置所述上行次分量载波; 激活确定单元, 用于确定是否接收到激活触发事件, 所述激活触发事件用 于激活所述用户设备在所述上行次分量载波上传输所述周期性探测参考信号; 周期性探测参考信号配置单元,用于在所述激活确定单元确定接收到所述 激活触发事件的情况下,为所述用户设备配置在所述上行次分量载波上传输所 述周期性探测参考信号所需的物理资源参数; 以及
激活信令传输单元,用于将包含为所述用户设备配置的所述物理资源参数 的信息传输到所述用户设备,以激活所述用户设备在配置的所述上行次分量载 波上传输所述周期性探测参考信号。
13、 如权利要求 12所述的设备, 其中,
所述周期性探测参考信号配置单元进一步用于为所述用户设备配置用于 在所述上行次分量载波上传输所述周期性探测参考信号的其它参数; 并且 所述激活信令传输单元进一步用于通过无线资源控制信令将包含为所述 用户设备配置的所述物理资源参数和所述其它参数的信息传输到所述用户设 备,以激活所述用户设备在所述上行次分量载波上传输所述周期性探测参考信 号。
14、 如权利要求 12所述的设备, 其中, 所述周期性探测参考信号配置单 元进一步用于为所述用户设备配置用于在所述上行次分量载波上传输所述周 期性探测参考信号的其它参数, 并且所述设备进一步包括:
配置信令传输单元,用于通过无线资源控制信令将包含为所述用户设备配 置的所述其它参数的信息传输到所述用户设备, 并且
所述激活信令传输单元通过物理下行控制信道信令将包含为所述用户设 备配置的所述物理资源参数的信息传输到所述用户设备。
15、 如权利要求 12所述的设备, 进一步包括:
去激活确定单元, 用于确定是否接收到去激活触发事件, 所述去激活触发 事件用于去激活所述用户设备在所述上行次分量载波上传输所述周期性探测 参考信号; 以及
周期性探测参考信号释放单元,用于在所述去激活确定单元确定接收到所 述去激活触发事件的情况下,将指示释放所述周期性探测参考信号的资源的信 息发送到所述用户设备, 以释放所述周期性探测参考信号的所述资源。
16、 如权利要求 12所述的设备, 进一步包括:
去激活计时器, 其被提供给所述上行次分量载波, 用于在超时的情况下释 放所述周期性探测参考信号的资源。
17、 如权利要求 12所述的设备, 进一步包括:
去激活计时器,其被提供给与所述上行次分量载波具有链接关系的下行次 分量载波, 用于在超时的情况下释放所述周期性探测参考信号的资源。
18、一种用于在载波聚合***中的上行次分量载波上传输非周期性探测参 考信号的设备, 包括:
去激活确定单元,用于确定第一用户设备在所述上行次分量载波上的周期 性探测参考信号的传输是否被去激活; 以及
资源信令传输单元,用于在所述去激活确定单元确定所述第一用户设备在 所述上行次分量载波上的周期性探测参考信号的传输被去激活的情况下,将包 含所述周期性探测参考信号的资源的信息传输到第二用户设备,用于所述第二 用户设备在所述上行次分量载波上传输非周期性探测参考信号。
19、 如权利要求 18所述的设备, 其中, 所述资源信令传输单元包括: 配置信令传输单元,用于通过无线资源控制信令将包含所述周期性探测参 考信号的资源的信息传输到包括所述第二用户设备的一组用户设备中的每一 个用户设备; 以及
激活信令传输单元,用于当所述第二用户设备需要在所述上行次分量载波 上传输非周期性探测参考信号时,通过物理下行控制信道信令向所述第二用户 设备传输激活信号,以激活所述第二用户设备在所述上行次分量载波上传输所 述非周期性探测参考信号。
20、 如权利要求 18所述的设备, 其中, 所述资源信令传输单元包括: 配置与激活信令传输单元,用于当所述第二用户设备需要在所述上行次分 量载波上传输非周期性探测参考信号时,通过物理下行控制信道信令将包含所 述周期性探测参考信号的资源的信息传输到所述第二用户设备,并激活所述第 二用户设备在所述上行次分量载波上传输所述非周期性探测参考信号。
21、 如权利要求 19所述的设备, 进一步包括:
重新激活通知单元,用于当所述第一用户设备在所述上行次分量载波上的 周期性探测参考信号的传输被重新激活时,通知所述一组用户设备释放所述周 期性探测参考信号的资源, 并且
其中,在接收到所述一组用户设备已释放所述周期性探测参考信号的资源 的反馈确认信令之后,所述第一用户设备继续使用所述周期性探测参考信号的 所述资源在所述上行次分量载波上传输所述周期性探测参考信号。
22、 如权利要求 20所述的设备, 进一步包括:
重新激活通知单元,用于重新激活所述第一用户设备继续使用所述周期性 探测参考信号的所述资源在所述上行次分量载波上传输所述周期性探测参考 信号。
23、 一种无线通信***, 包括基站和用户设备, 所述基站包括如权利要求 12- 17中任何一项所述的用于在载波聚合***中的上行次分量载波上传输周期 性探测参考信号的设备, 所述用户设备包括信令接收单元, 所述信令接收单元 用于接收来自所述基站的信令。
24、 一种无线通信***, 包括基站和用户设备, 所述基站包括如权利要求 18-22中任何一项所述的用于在载波聚合***中的上行次分量载波上传输非周 期性探测参考信号的设备, 所述用户设备包括信令接收单元, 所述信令接收单 元用于接收来自所述基站的信令。
25、 一种程序产品, 包括存储在其中的机器可读指令代码, 其中, 所述指 令代码当由计算机读取和执行时, 能够使所述计算机执行根据权利要求 1-11 中任何一项所述的方法。
26、 一种机器可读存储介质, 其上携带有根据权利要求 25所述的程序产 口口 o
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