WO2017174020A1 - Method, device, and system for transmission of uplink control information - Google Patents
Method, device, and system for transmission of uplink control information Download PDFInfo
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- WO2017174020A1 WO2017174020A1 PCT/CN2017/079670 CN2017079670W WO2017174020A1 WO 2017174020 A1 WO2017174020 A1 WO 2017174020A1 CN 2017079670 W CN2017079670 W CN 2017079670W WO 2017174020 A1 WO2017174020 A1 WO 2017174020A1
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- reference signal
- uplink reference
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- state
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Definitions
- the embodiments of the present invention relate to the field of wireless communications, and in particular, to a method, device, and system for transmitting an uplink reference signal.
- the network side device when a user equipment (UE) interacts with a network side device, the network side device needs to acquire the location of the UE, and can determine the distance between the UE and the network side device and the transmission delay time, and then determine The Timing Advance (TA) of the UE, thereby implementing uplink synchronization of each UE.
- the UE may perform the foregoing function by sending an uplink signal, that is, the UE may send an uplink reference signal to the network side device, so that the network side device acquires the location of the UE according to the received uplink reference signal and The TA of the UE is estimated.
- the UE usually needs to send an uplink reference signal according to the state of the UE.
- the UE generally sends a Souding Reference Signal (SRS) to the network side device when the connected state is in a connected state, and the SRS is an uplink reference signal.
- SRS Souding Reference Signal
- the network side device can not only perform channel estimation according to the SRS, but also acquire the UE location and the estimated TA.
- the UE may send a random access request to the network side device when in the connected state or the idle state, so that the network side device estimates the TA according to the random access request.
- the state of the UE can be divided into an active state and an Eco-Conservation-Optimization (ECO) state.
- the UE entering the network side device can switch between these two states.
- the Active state is basically the same as the connected state in the LTE system.
- the UE in this state and the network-side device always maintain a Radio Resource Control (RRC) connection, which can support data transmission at any time, and the ECO state UE also
- RRC Radio Resource Control
- the network side device always maintains the RRC connection, but only supports a small amount of data transmission. Therefore, the network side device does not need to frequently monitor and manage the channel between the UE and the network side device, and does not need to perform channel estimation. Therefore, when the uplink reference signal is transmitted in the 5G system, the UE in the active state can directly transmit the SRS to the network side device by referring to the UE in the connected state.
- the SRS is only allowed to transmit on the last symbol of the subframe in which the uplink reference signal is transmitted, thereby making it difficult to support a large number of The UE sends an uplink reference signal.
- the network side device does not need to perform channel estimation according to the uplink reference signal sent by the UE in the ECO state, the uplink reference signal sent by the UE in the ECO state cannot directly multiplex the SRS in the connected state, and an apparatus suitable for the ECO state is needed.
- the uplink reference signal transmission method since there are a large number of UEs in the ECO state in the 5G system, in the current technology, the SRS is only allowed to transmit on the last symbol of the subframe in which the uplink reference signal is transmitted, thereby making it difficult to support a large number of The UE sends an uplink reference signal.
- the uplink reference signal sent by the UE in the ECO state cannot directly multiplex the SRS in the connected state, and an apparatus suitable for the ECO state is needed.
- the uplink reference signal transmission method
- an embodiment of the present invention provides a method, device, and system for transmitting an uplink reference signal.
- the technical solution is as follows:
- a method for transmitting an uplink reference signal includes:
- the user equipment UE sends an uplink reference signal to the network side device.
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send an uplink reference signal; the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
- an uplink reference signal that occupies at least one symbol in the time domain is provided, so that the uplink reference signal can be time-division multiplexed on at least one symbol, so that a large number of UEs can be supported to transmit the uplink reference signal.
- the UE is adapted to the ECO state, and the uplink reference signal occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
- an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
- the uplink symbol in the subframe or the time slot in which the at least one symbol is located is used to send the uplink reference signal, and the uplink reference signal can be guaranteed to be time-divided on all symbols in one subframe or one slot. Used to support a large number of users.
- the uplink reference signal that is sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the state transition request indicates The UE requests the network side device to switch the UE from the first state to the second state, where the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, N is a positive integer.
- the N symbols in the subframe where the at least one symbol is located are configured as the first designated symbol, so that the UE can initiate a state to the network side device by sending an uplink reference signal on the first designated symbol. If the network side device detects the uplink reference signal sent by the UE on the first designated symbol, the network side device can switch the current state from the first state to the second state, thereby implementing state transition of the UE. .
- the symbol index of the first designated symbol is configured by the network side device.
- the symbol index of the first designated symbol is configured by the network side device to the UE, so that the UE can determine the location of the first designated symbol according to the symbol index, thereby improving configuration flexibility.
- the symbol index of the first designated symbol is sent by the network side device by using a system broadcast message or a high layer signaling Configuration.
- the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
- the UE may send the uplink reference signal by using the preset contention mechanism on the first designated symbol, so that multiple UEs may send the uplink reference signal by using the contention on the uplink shared resource corresponding to the first designated symbol.
- the network side device is not required to configure and schedule the uplink reference signal sent on the first designated symbol.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the state transition request may indicate the The UE requests the network side device to switch the UE from the ECO state to the active state.
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located, which avoids conflicts with the sounding reference signal SRS sent by other active UEs, and enhances compatibility.
- the method further includes:
- the uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- the UE determines the time domain location, the frequency domain location, and the code domain location of the uplink reference signal to be sent according to the uplink reference signal configuration information by receiving the uplink reference signal configuration information sent by the network side device, and The uplink reference signal is sent on the determined time domain location, the frequency domain location, and the code domain location, so that multiple UEs can send uplink reference signals to the network side device respectively according to the configuration of the network side device, that is, the network side device can be Under the scheduling, resources are shared by means of time division multiplexing, frequency division multiplexing, code division multiplexing, and the like.
- a method for transmitting an uplink reference signal includes:
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive of.
- an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
- the method further includes:
- the network side device detects an uplink reference signal sent by the UE on the first designated symbol, and determines, according to the detection result, whether to switch the UE from the first state to the second state, where the UE is
- the uplink reference signal sent on the first designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state Up to the second state, the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- the method further includes:
- the network side device configures a symbol index of the first designated symbol to the UE.
- the method also includes:
- the network side device configures, by using a system broadcast message or a high layer signaling, a symbol index of the first designated symbol to the UE.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- the method further includes:
- uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- a third aspect provides a user equipment UE, where the UE includes:
- a sending module configured to send an uplink reference signal to the network side device
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send an uplink reference signal; the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
- an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
- the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request
- the state transition request indicates that the UE requests the network side device to switch the UE from the first state to the second state, where the first designated symbol is a subframe or a time slot in which the at least one symbol is located.
- N symbols inside, N is a positive integer.
- the symbol index of the first designated symbol is configured by the network side device.
- the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- the UE further includes:
- a receiving module configured to receive uplink reference signal configuration information sent by the network side device
- the sending module is further configured to send the uplink reference signal according to the uplink reference signal configuration information
- the uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- a network side device where the network side device includes:
- a receiving module configured to receive an uplink reference signal sent by the user equipment UE
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send an uplink reference signal; the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
- an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
- the network side device further includes:
- a switching module configured to detect, on the first designated symbol, an uplink reference signal sent by the UE, and determine, according to the detection result, whether to switch the UE from the first state to the second state, where the The uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to use the UE from the first state.
- the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- the network side device further includes:
- a configuration module configured to configure, to the UE, a symbol index of the first designated symbol.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- the network side device further includes: a sending module, configured to send uplink reference signal configuration information to the UE;
- the uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- the fifth aspect provides a transmission system for an uplink reference signal, where the system includes any one of the user equipment UE according to any one of the foregoing aspects, and the network side device of any one of the foregoing fourth aspects.
- the technical solution provided by the embodiment of the present invention has the beneficial effects that the uplink reference signal sent by the UE to the network side device can occupy at least one symbol in the time domain to ensure that the uplink reference signal can be in the method provided by the embodiment of the present invention.
- Performing time division multiplexing on at least one symbol, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, thereby ensuring that the uplink reference signal can be frequency division multiplexed over the entire system bandwidth, thereby supporting
- a large number of UEs are used to transmit the uplink reference signal, and are adapted to the ECO state UE.
- the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
- FIG. 1 is a schematic structural diagram of a transmission system of an uplink reference signal according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a 5G system according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of UE state transition according to an embodiment of the present invention.
- FIG. 4 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention
- FIG. 5 is a flowchart of another method for transmitting an uplink reference signal according to an embodiment of the present invention.
- FIG. 6 is a flowchart of still another method for transmitting an uplink reference signal according to an embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of a subframe in which an uplink reference signal is located according to an embodiment of the present disclosure
- FIG. 8 is a schematic structural diagram of a time slot in which an uplink reference signal is located according to an embodiment of the present disclosure
- FIG. 9 is a schematic structural diagram of a resource block in which an uplink reference signal is located according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of another time slot in which an uplink reference signal is provided according to an embodiment of the present invention.
- FIG. 11 is a schematic structural diagram of a user equipment UE according to an embodiment of the present disclosure.
- FIG. 12 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
- FIG. 13 is a schematic structural diagram of a user equipment UE according to an embodiment of the present disclosure.
- FIG. 14 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
- FIG. 1 is a schematic structural diagram of a transmission system of an uplink reference signal according to an embodiment of the present invention.
- the uplink reference signal transmission system 100 includes a user equipment UE101 and a network side equipment 102.
- the UE 101 is configured to send an uplink reference signal to the network side device 102.
- the network side device 102 is configured to receive an uplink reference signal sent by the UE 101.
- the uplink reference signal sent by the UE 101 occupies at least one symbol in the time domain, and the uplink reference signal sent by the UE 101 occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
- the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
- the network side device 102 may send uplink reference signal configuration information to the UE 101.
- the UE 101 may send an uplink reference signal to the network side device 102 based on the uplink reference signal configuration information configured by the network side device 102.
- the transmission system of the uplink reference signal may be an LTE system or a 5G system, and may be other wireless communication systems, which is not limited in this embodiment of the present invention.
- the network side device may be an evolved Node B (eNB) or a centralized controller, and may also be other network side devices, which is not limited in this embodiment of the present invention.
- eNB evolved Node B
- the network side device may be an eNB
- the network side device may be a centralized controller.
- the 5G system may be a "UE-centric” (UE-centric) wireless network system, and Nonn may be introduced in the "UE-centric” wireless network system.
- a -cell (no cell) network architecture that constitutes a "UE-centric Non-cell” network system.
- the 5G system can deploy a large number of small stations 2011 in a specific area to form a hyper cell 201, and each small station is a transmission in the super cell 201.
- Transmission Point (TP) and each station 2011 is connected to the centralized controller 202.
- the central controller (controller) 202 can allocate a unique identifier, such as a UE ID (Identification), to the UE 203 in the super cell 201, so that when the UE 203 moves in the super cell 201, The centralized controller 202 can identify the UE 203.
- a unique identifier such as a UE ID (Identification)
- the UE in the system can be divided into two states: an Active state. And ECO state.
- the active state UE can perform data transmission at any time, and the ECO state UE only supports a small amount of data transmission.
- the UE accesses the super cell, it will switch between the two states. For example, referring to FIG. 3, when the UE is in Ative, if there is no data to be transmitted within the preset duration after the UE data transmission is completed, the UE will switch from the Active state to the ECO state; When the byte packet needs to be transmitted, the UE will switch back from the ECO state to the Ative state.
- the preset byte may be 20 bytes, 25 bytes, 30 bytes, etc., which is not limited in this embodiment of the present invention.
- the centralized controller 202 in order to ensure that the centralized controller 202 can identify the location of the UE 203 in real time, the centralized controller 202 can send the uplink reference signal configuration information to the UE 203, so that the UE 203 concentrates on the uplink reference signal configuration information configured by the centralized controller 202.
- the controller 202 transmits an uplink reference signal.
- the uplink reference signal sent by the UE 203 occupies at least one symbol in the time domain, and the uplink reference signal sent by the UE 203 occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
- the centralized controller 202 receives the uplink reference signal sent by the UE 203, and acquires information such as the location, TA, and the like of the UE 203 according to the uplink reference signal. On the one hand, the centralized controller 202 can select the optimal TP set 204 for the UE 203 to serve the UE 203 according to the acquired location information, and update the TP-UE relationship table; on the other hand, the centralized controller 202 can also The obtained TA information is adjusted to adjust the TA of the UE 203.
- the centralized controller 202 may acquire the location of the UE 203 according to the uplink reference signal sent by the UE 203, and select a new TP set 204 for the UE 203 according to the location of the UE 203. Service, thereby avoiding true cell handover and achieving continuity of UE services.
- the UE 203 may also send the SRS to the centralized controller 202 when in the acticve state, and send the uplink reference signal shown in the embodiment of the present invention to the centralized controller 202 when in the ECO state.
- the centralized controller 202 can obtain not only the location of the UE 203, the TA, etc., but also the SRS sent by the UE 203 in the Acticve state. Channel estimation, and the uplink reference signal transmitted by the UE 203 according to the ECO state does not need to perform channel estimation.
- FIG. 4 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention. The method is performed by a user equipment UE. Referring to FIG. 4, the method includes the following steps:
- Step 401 The user equipment UE sends an uplink reference signal to the network side device.
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
- the UE may send an uplink reference signal to the network side device, where the uplink reference signal sent by the UE may occupy at least one symbol in the time domain, and ensure that the uplink reference signal can be performed on at least one symbol.
- Time division multiplexing and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, thereby ensuring that the uplink reference signal can be frequency division multiplexed over the entire system bandwidth, thereby supporting a large number of UEs to send uplink reference.
- the signal is adapted to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
- the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
- the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the state transition request indicates that the UE requests the network side device to take the UE from the current first state.
- the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- the symbol index of the first designated symbol is configured by the network side device.
- the symbol index of the first designated symbol is configured by the network side device by using a system broadcast message or a high layer signaling, where the system broadcast message may be a System Information Block (SIB) message or a master information block (Master Information Block). , MIB) message, etc., the higher layer signaling may be RRC signaling.
- SIB System Information Block
- MIB Master Information Block
- RRC Radio Resource Control
- the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- the method further includes:
- the UE receives the uplink reference signal configuration information sent by the network side device, and sends the uplink reference signal according to the uplink reference signal configuration information;
- the uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- FIG. 5 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention.
- the execution body of the method is a network side device. Referring to FIG. 5, the method includes the following steps:
- Step 501 The network side device receives an uplink reference signal sent by the user equipment UE.
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
- the network side device may receive the uplink reference signal sent by the user equipment UE, where the uplink reference signal sent by the UE may occupy at least one symbol in the time domain, and ensure that the uplink reference signal may be at least one.
- the symbol is time-division multiplexed, and the uplink reference signal sent by the UE occupies consecutive sub-carriers in the frequency domain and can configure the bandwidth, thereby ensuring that the uplink reference signal can be frequency-multiplexed and multiplexed over the entire system bandwidth, thereby supporting a large number of UEs.
- the uplink reference signal is sent to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
- the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
- the method further includes:
- the network side device detects an uplink reference signal sent by the UE on the first designated symbol, and determines, according to the detection result, whether to switch the UE from the first state to the second state, where the UE is in the first state.
- the uplink reference signal sent on the designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state to the second state
- the first designated symbol N is a positive integer for the N symbols in the subframe or slot in which the at least one symbol is located.
- the method further includes:
- the network side device configures a symbol index of the first designated symbol to the UE.
- the network side device may configure a symbol index of the first designated symbol to the UE by using a system broadcast message or a high layer signaling, where the system broadcast message may be an SIB message, an MIB message, or the like, and the high layer signaling may be RRC signaling.
- system broadcast message may be an SIB message, an MIB message, or the like
- high layer signaling may be RRC signaling.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- the method further includes:
- uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- FIG. 6 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention. The method is performed by a UE and a network side device. Referring to FIG. 6, the method includes the following steps:
- Step 601 The network side device sends uplink reference signal configuration information to the UE.
- An embodiment of the present invention provides an uplink reference signal, where the uplink reference signal occupies at least one symbol in a time domain, The uplink reference signal occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are contiguous.
- the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
- the uplink reference signal sent by the UE may be sent in a subframe, and the uplink symbol of the subframe in which the uplink reference signal is located may be used to send an uplink reference signal, where the subframe may be defined in the LTE system.
- the sub-frames that are defined in the future 5G system are not limited in this embodiment of the present invention.
- the uplink reference signal sent by the UE may be sent in units of time slots, and the uplink symbols of the time slot in which the uplink reference signal is located may be used to send an uplink reference signal, where the time slot may be a sub-defined in the LTE system.
- the frame may also be a time slot defined in a future 5G system, which is not limited in this embodiment of the present invention.
- the uplink symbol is a symbol for transmitting uplink information.
- all the symbols in the subframe or time slot in which the uplink reference signal is located are all uplink symbols as an example.
- the network side device may send the uplink reference signal configuration information to the UE, to indicate that the UE sends the uplink reference signal configuration information to the network side.
- the device sends an uplink reference signal.
- the uplink reference signal may be a tracking signal, which is not limited in this embodiment of the present invention.
- the uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends the periodic information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ; the UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- the uplink reference signal configuration information may be a value of a specific parameter, or may be an indication information, which is not limited in this embodiment of the present invention.
- the value of the corresponding parameter may be directly sent to the UE, for example, directly sending the corresponding
- the value of the parameter may also be sent to the UE to indicate that the UE obtains the value of the corresponding parameter according to the indication information.
- the uplink reference signal configuration information may be divided into cell-specific configuration information and UE-specific configuration information, where the cell-specific configuration information is used to indicate that the uplink reference signal is allowed to be sent in the cell.
- the UE-specific configuration information is used to indicate a resource that the designated UE sends the uplink reference signal.
- the network side device may send the cell-specific configuration information to the UE by using the system broadcast message, for example, the cell-specific configuration information may be sent to the UE by using the SIB message or the MIB message;
- the UE sends the UE-specific configuration information, for example, the UE-specific configuration information can be sent to the UE through RRC signaling, which is not limited in this embodiment of the present invention.
- the cell-specific configuration information may include the period information of the uplink reference signal sent by the cell where the UE is located. Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe according to with The set of subframes for transmitting the uplink reference signal in the cell where the UE is located may be determined.
- the subframe number The offset of the subframe used for transmitting the uplink reference signal in the cell where the UE is located, with respect to the specified subframe, The period in which the uplink reference signal is sent for the cell where the UE is located. Then the subframe number The corresponding subframe is a subframe for transmitting an uplink reference signal in the cell.
- the network side device may send the UE to the UE simultaneously.
- the network side device can send to the UE with Joint index of Index to indicate this at the same time with The UE can be determined according to the joint index with The subframe for transmitting the uplink reference signal in the cell where the UE is located is further determined.
- UE-specific configuration information may include period information of the uplink reference signal sent by the UE And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
- the UE sends the sequence index information (u, v) of the uplink reference signal and the cyclic shift information ⁇ , and the frequency domain start position information f 0 and the occupied bandwidth information W of the UE transmitting the uplink reference signal in the frequency domain.
- the UE-specific configuration information may also include period information of the uplink reference signal sent by the cell where the UE is located. Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe This embodiment of the present invention does not limit this.
- the network side device may send the message to the UE.
- Setting a parameter to indicate a period in which the cell where the UE is located sends an uplink reference signal for example, if If the configuration parameter is 00, the period in which the cell in which the UE is located sends the uplink reference signal is 5 subframe lengths. If the configuration parameter is 01, the period in which the cell in which the UE is located sends the uplink reference signal is 10 subframe lengths.
- the network side device can also send to the UE.
- the configuration parameter is used to indicate the offset of the subframe in which the uplink reference signal is sent with respect to the specified subframe, for example, the subframe of the specified subframe is 0, if If the configuration parameter is 00, the offset of the subframe that sends the uplink reference signal relative to the subframe 0 is 0. If the configuration parameter is 01, the offset of the subframe in which the uplink reference signal is transmitted with respect to the subframe 0 is 1 or the like.
- the Configuration parameters and the The size of the configuration parameter may be 2 bits, which is not limited in this embodiment of the present invention.
- the configuration may be such that a set of subframes is obtained, and all the UEs in the cell may send an uplink reference signal in the subframe corresponding to the subframe set.
- the subframe set corresponds to A subframe is referred to as an uplink reference signal subframe.
- the network side device also needs to allocate a subframe for sending the uplink reference signal to the UE, that is, select a partial subframe from the subframe set as a sub-frame for transmitting the uplink reference signal by the UE. frame.
- the subframe in which the UE sends the uplink reference signal may be according to the period in which the UE sends the uplink reference signal. And determining, by the UE, a subframe start position for transmitting the uplink reference signal. The UE may determine, according to the starting position of the subframe, from which subframe the uplink reference signal is sent, according to the It can be determined how many subframes are selected to send an uplink reference signal.
- the period in which the UE sends the uplink reference signal An integer multiple of the period for transmitting the uplink reference signal for the cell where the UE is located, that is, Where t is a positive integer. Then, the UE sends an uplink reference signal period. It can be configured in two ways:
- the network side device may send the UE to the UE.
- the configuration parameters can be 2bit-3bit. For example, when The network side device may send to the UE when the length is 5 subframes. Configuration parameters, configuration It is 10 subframe lengths.
- the network side device may send a t configuration parameter to the UE to indicate for t times. For example, if the t configuration parameter is 00, it means for The UE may send an uplink reference signal on each uplink reference signal subframe; if the t configuration parameter is 01, it indicates equal The UE may select an uplink reference signal subframe for every other uplink reference signal subframe to transmit an uplink reference signal.
- the UE may determine the start position of the subframe in which the UE sends the uplink reference signal in the following two manners:
- the UE may determine the subsequent first uplink reference signal subframe as the subframe start position of the UE sending the uplink reference signal. Or, the first uplink reference signal subframe after the subframe is separated from the subframe n is determined as the subframe start position of the uplink signal transmitted by the UE, where k is a positive integer.
- the determining rule of the starting position of the subframe may be predefined by a network protocol, which is not limited by the embodiment of the present invention.
- the UE-specific configuration information may include a subframe start position at which the UE sends an uplink reference signal.
- the network side device may send a subframe start location configuration parameter to the UE, and if the subframe start location configuration parameter is 00, it indicates that the UE may receive the first uplink after the UE-specific configuration information.
- the reference signal subframe is determined as a subframe start position of the uplink reference signal sent by the UE; if the subframe start location configuration parameter is 01, the UE may receive the second uplink after the UE-specific configuration information is received.
- the reference signal subframe determines a subframe start position at which the UE transmits an uplink reference signal.
- the network side device may further configure the symbol in the subframe, that is, the network side device may configure the UE to send the uplink reference signal. symbol.
- the network side device may configure the UE to send an uplink reference signal on all symbols in the subframe, or configure the UE to send an uplink reference signal on a part of the symbols in the subframe. Make a limit.
- the symbol of the uplink reference signal sent by the UE may be the offset of the symbol of the uplink reference signal sent by the UE with respect to the second specified symbol. It is determined that the second designated symbol may be the No. 0 symbol, the No. 1 symbol, and the like in the subframe in which the uplink reference signal is sent by the UE, which is not limited in this embodiment of the present invention. For example, when the second designated symbol is the 0th symbol, the UE transmits the offset of the symbol of the uplink reference signal with respect to the second specified symbol. If it is 3, it can be determined that the first UE can send the uplink reference signal on the symbol No. 3 of the uplink reference signal subframe.
- the network side device sends the uplink reference signal configuration information to a designated UE, and in actual application, the network side device may send an uplink reference signal to all UEs in the cell.
- the configuration information is such that each UE can send an uplink reference signal according to the uplink reference signal configuration information sent by the network side device.
- the configuration information of the uplink reference signals sent by the network side device to different UEs may be the same or different, which is not limited in this embodiment of the present invention.
- the network side device can separately send different uplink reference signal configuration information to the UE1 and the UE2 to indicate the UE1 and the UE2 transmit uplink reference signals on different symbols within the same subframe.
- the network side device may configure the UE1 to send an uplink reference signal on the No. 0 symbol in the subframe, and configure the UE2 to send an uplink reference signal on the No. 1 symbol in the subframe.
- the network side device can configure different UEs to respectively send uplink reference signals on different symbols in the same subframe, and implement time division multiplexing on each symbol in the uplink reference signal subframe, thereby supporting a large number of UEs. Send an upstream reference signal.
- the network side device may further send a sequence index (u, v) of the uplink reference signal and a cyclic shift ⁇ to the UE, and the UE may generate the sequence index (u, v) and the cyclic shift ⁇ .
- Uplink reference signal sequence For the configuration and the generation process of the uplink reference sequence, reference may be made to the configuration and the generation process of the uplink demodulation reference signal sequence in the LTE system, which is not repeatedly described in this embodiment of the present invention.
- the uplink reference signal sequence configuration and generation process can refer to standard 3GPP. This is not limited by the embodiment of the present invention, which is described in Section 5.5.3 of TS 36.211 V13.0.0 (2015-12).
- the process of the network side device configuring the uplink reference signal configuration information to the UE may also refer to the standard 3GPP TS 36.213 V13.0.0 (2015-12) section 8.2, which is not limited in this embodiment of the present invention.
- the network side device may further send, to the UE, a frequency domain starting position f 0 and an occupied bandwidth of the uplink reference signal in the frequency domain, and the UE may be based on the frequency domain starting position f 0 and occupied.
- the bandwidth determines the frequency domain location of the transmitted uplink reference signal.
- the network side device may configure that the uplink reference signal sent by the UE occupies 1 resource block-3 resource blocks in the frequency domain, and occupies consecutive subcarriers on each occupied resource block.
- the uplink reference signal sent by the UE may occupy one resource block, two resource blocks, or three resource blocks in the frequency domain, which is not limited in this embodiment of the present invention.
- the embodiment of the present invention is only an example in which the UE sends an uplink reference signal according to the uplink reference signal configuration information sent by the network side device, and in actual application, the UE may not need to receive the uplink reference sent by the network side device.
- the signal configuration information can directly send the uplink reference signal to the network side device.
- the UE can directly send the uplink reference signal to the network side device according to a predefined standard, which is not limited in this embodiment of the present invention.
- Step 602 The UE sends an uplink reference signal to the network side device according to the uplink reference signal configuration information configured by the network side device.
- the UE may receive the uplink reference signal configuration information sent by the network side device, and store the uplink reference signal configuration information, and then, according to the uplink reference signal configuration information configured by the network side device, The network side device sends an uplink reference signal.
- the UE may send the uplink reference signal to the network side device when in the ECO state, and send the SRS to the network side device when in the Active state.
- the UE When the UE is in the ECO state, the UE maintains an RRC connection with the network side device, and the network side device allocates a unique UE ID to the UE, but the UE only supports a small amount of data transmission, that is, the UE will only Supports the transmission of packets smaller than the preset byte.
- the preset byte may be 20 bytes, 25 bytes, 30 bytes, etc., which is not limited in this embodiment of the present invention.
- the ECO state UE can only support transmitting data packets smaller than 20 bytes, and when there are data packets larger than 20 bytes that need to be transmitted, the UE will switch from the ECO state to the Active state, and then transmit the data packet.
- the UE in the ECO state can also include the following features:
- the UE in the ECO state can support the uplink grant-free (UL grant-free) transmission, that is, the UE can transmit data on the uplink shared channel resource based on the contention mechanism, without the network side device allocate the uplink shared channel resource for the UE.
- the UE in the ECO state does not need to detect the control channel; the network side device does not need to perform channel estimation according to the uplink signal sent by the UE; the UE in the ECO state only supports a small number of connection management, that is, the UE in the ECO state only supports a small amount of data transmission.
- the UE does not need to frequently monitor and manage the channel between the UE and the network side device to ensure normal data transmission of the UE.
- the UE in the ECO state can maintain less communication with the network side device.
- the signaling interaction is such that the UE in the ECO state consumes less power than the UE in the active state.
- the UE in the ECO state can also periodically send an uplink reference signal to the network side device, so that the network side device can track the UE.
- the uplink reference signal sent by the UE on the first designated symbol may be used to indicate that the UE initiates a state transition request, where the state transition request indicates that the UE requests the network side device to The UE switches from the first state in which it is currently located to the second state, where the first designated symbol is N symbols in a subframe in which the at least one symbol is located, and N is a positive integer.
- the N symbols may be consecutive N characters in the subframe where the at least one symbol is located. The number is not limited to the N symbols in the embodiment of the present invention.
- the embodiment of the present invention only pays attention to the function of the state transition request, that is, the state transition request indicates that the network side device is requested to switch the UE from the current first state to the first state.
- the second state is not limited to the specific states of the first state and the second state.
- the first state may be an ECO state, and the second state may be an Active state; or the first state is an Active state, and the second state is an ECO state; or the first state is connected
- the second state is an Idle state; or the first state is an Idle state, and the second state is a connected state or the like.
- the first state is the ECO state
- the second state is the Active state.
- the UE When the UE is in the ECO state, if a packet larger than the preset byte needs to be transmitted, the UE can be sent.
- An uplink reference signal is also sent on the first designated symbol of the subframe where the uplink reference signal is located, to request the network side device to switch the UE from the ECO state to the active state.
- the uplink reference signal sent by the UE will not occupy the first designated symbol of the subframe in which it is located.
- the symbol index of the first designated symbol may be configured by the network side device to indicate which symbol in the subframe in which the at least one symbol is located.
- the network side device may configure the symbol index of the first designated symbol to the UE, and the UE may use the symbol of the first designated symbol.
- the symbol corresponding to the index is determined as the first designated symbol.
- the network side device may configure, by using the high layer signaling, the symbol index of the first designated symbol to the UE, for example, the network side device may configure the symbol index of the first designated symbol to the UE by using RRC signaling; or The network side device may also configure a symbol index of the first designated symbol to the UE by using a system broadcast message. For example, the network side device may configure a symbol index of the first designated symbol to the UE by using an SIB message or an MIB message.
- the manner of configuring the symbol index of the first designated symbol is not limited in the embodiment of the invention.
- the uplink reference signal on the first designated symbol may be sent by using a preset contention mechanism, that is, when the UE needs to perform state transition, the UE may be on the first designated symbol by using a preset contention mechanism.
- the uplink reference signal is sent. Therefore, the UE can transmit the uplink reference signal on the first designated symbol without scheduling by the network side device.
- the preset contention mechanism may be configured in advance by the network side device. In this manner, when different UEs send an uplink reference signal on the same first designated symbol of the same uplink reference signal subframe to indicate that the state transition request is initiated, different UEs may send the uplink reference signal on the first designated symbol based on contention.
- the uplink reference signal sent by the UE on the first designated symbol indicates that the state switching request is initiated to the network side device, and in actual application, the UE may also be in the application.
- Sending a signal other than the uplink reference signal on the first designated symbol for example, transmitting a spreading sequence similar to an uplink scheduling request (SR) on the first designated symbol to indicate that the state switching is sent to the network side device.
- SR uplink scheduling request
- the request is not limited in this embodiment of the present invention.
- the SRS in the current technology only allows transmission on the last symbol of the subframe in which the subframe is located, in order to avoid the uplink reference signal sent by the UE in the last symbol of a certain subframe and other Active UEs in the subframe.
- the SRS sent on the last symbol causes a collision, and the uplink reference signal sent by the UE may not occupy the last symbol of the subframe in which the at least one symbol is located. That is, the network side device may configure the last symbol reservation of the uplink reference signal subframe to ensure that all UEs in the cell do not send the uplink reference signal on the last symbol of the uplink reference signal subframe.
- the first designated symbol may be N except the last symbol in the subframe where the at least one symbol is located symbol.
- the uplink reference signal when the UE is in the ECO state, the uplink reference signal may be sent in a certain uplink reference signal subframe.
- the uplink reference signal subframe includes 14 symbols: a 0-symbol and a 13-symbol. Taking the No. 0 symbol as the first designated symbol as an example, the uplink reference signal sent on the No. 0 symbol can indicate that a state transition request is initiated to the network side device, and the network side device is requested to switch the UE from the ECO state to the Active state. Moreover, the 13th symbol of the subframe is reserved, and the uplink reference signal sent by the UE does not occupy the 13th symbol.
- the UE can determine, according to the uplink reference signal configuration information sent by the network side device, that all symbols or partial symbols in the No. 1 symbol No. 12 symbol are sent uplink. Reference signal signal.
- the uplink reference signal transmitted by the UE may occupy 1 RB, 2 RB, or 3 RB in the frequency domain, and the subcarriers in the occupied RB are consecutive.
- the time slot is used. It may be a first time slot or a second time slot, where the first time slot refers to the first half of the subframe in which the subframe is located, and the second time slot refers to the second half of the subframe in which the subframe is located.
- the UE may send the uplink reference signal in units of the second time slot in the time domain. That is, the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol of the second time slot in which the at least one symbol is located is used to send the uplink reference signal, and the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
- the second time slot in which the uplink reference signal is located may further include a first designated symbol, and the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request.
- the first designated symbol is N symbols in the second slot, and N is a positive integer.
- the uplink reference signal sent by the UE may not occupy the last symbol of the second time slot, and the first designated symbol is any M symbols except the last symbol in the second time slot, Is a positive integer greater than or equal to 1.
- the second time slot in which the UE sends the uplink reference signal is located in the second half of the subframe in which the uplink reference signal is located, and the second time slot includes 7 symbols: the 7th symbol and the 13th symbol.
- the uplink reference signal sent on the 7th symbol can indicate that a state transition request is initiated to the network side device, and the network side device is requested to switch the UE from the ECO state to the active state.
- the 13th symbol of the subframe is reserved, that is, the uplink reference signal sent by the UE does not occupy the 13th symbol.
- the 8th symbol and the 12th symbol can be used to transmit the uplink reference signal, and the UE can determine to send all symbols or part of the symbols in the 8th symbol and the 12th symbol according to the uplink reference signal configuration information sent by the network side device.
- the uplink reference signal transmitted by the UE may occupy 1 RB, 2 RB, or 3 RB in the frequency domain, and the subcarriers in the occupied RB are consecutive.
- the uplink reference signal signal occupies a continuous carrier.
- the UE may send the uplink reference signal in units of the first time slot in the time domain. That is, the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol of the first time slot in which the at least one symbol is located is used to send the uplink reference signal, and the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
- the first time slot in which the uplink reference signal is located may further include a first designated symbol, and the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the first designated symbol is N symbols in the second slot, N is a positive integer.
- the first designated symbol is N symbols in the second slot, N is a positive integer.
- the last symbol of the first time slot is not required to be reserved, that is, the uplink reference signal can occupy the first All symbols within the time slot.
- the first designated symbol may be any T symbols in the first time slot, and T is a positive integer greater than or equal to 1.
- the first time slot in which the UE sends the uplink reference signal is located in the first half of the subframe in which the uplink reference signal is located, and the first time slot includes 7 symbols: the 0th symbol and the 6th symbol.
- the uplink reference signal sent on the No. 0 symbol can indicate that a state transition request is initiated to the network side device, and the network side device is requested to switch the UE from the ECO state to the Active state.
- the No. 1 symbol and the No. 6 symbol can be used to transmit the uplink reference signal, and the UE can determine to send on all symbols or part of the symbols in the No.
- Uplink reference signal 1 symbol-6 symbol according to the uplink reference signal configuration information sent by the network side device.
- the uplink reference signal transmitted by the UE may occupy 1 RB, 2 RB, or 3 RB in the frequency domain, and the subcarriers in the occupied RB are consecutive.
- the uplink reference signal configuration information may further include a unit in the time domain of the uplink reference signal sent by the UE.
- the unit includes a subframe or a time slot, and is used to indicate whether the UE sends an uplink reference signal in one subframe or an uplink reference signal in one time slot.
- the unit may further include a first time slot or a second time slot, configured to indicate whether the UE sends an uplink reference signal in the first time slot or an uplink reference signal in the second time slot.
- the network side device may send a unit parameter to the UE, which is used to indicate the unit of the uplink reference signal sent by the UE in the time domain.
- Step 603 The network side device acquires the location of the UE and estimates the TA of the UE according to the uplink reference signal sent by the UE.
- the network side device may acquire the location of the UE according to the uplink reference signal configuration information and estimate the TA of the UE. Further, in the 5G system shown in FIG. 2, the UE may further select an optimal TP set for the UE to serve the UE according to the location of the UE, and update the TP-UE relationship table stored by the network side device. Or, the UE may further adjust the TA of the UE according to the estimated TA.
- the network side device may further detect an uplink reference signal sent by the UE on the first designated symbol, and determine, according to the detection result, whether to switch the UE from the first state to the second state. If the network side device detects the uplink reference signal sent by the UE on the first designated symbol, indicating that the UE initiates a state change request to the network side device, the network side device may obtain the UE from the current location.
- the first state is switched to the second state; if the network side device does not detect the uplink reference signal sent by the UE on the first designated symbol, indicating that the UE does not initiate a state transition request, the network side device may not The state is replaced, that is, the UE is not switched from the current first state to the second state, and the UE will maintain the current first state.
- the network side device when the network side device receives the uplink reference signal sent by the UE in the ECO state, and the uplink reference signal is also detected on the first designated symbol of the subframe where the uplink reference signal sent by the UE is located, the network side device can The UE is switched from the ECO state to the Active state.
- the UE may send the SRS to the network side device, so that the network side device may acquire the location of the UE, the TA of the UE, and the like according to the SRS, and perform channel estimation according to the SRS.
- the SRS needs to occupy at least 4 RBs in the frequency domain, which consumes more resources and wastes resources for the ECO state UE that does not need channel estimation.
- the SRS occupies a "comb" spectrum in the frequency domain, that is, the SRS sequence is mapped to the frequency domain resources every other subcarrier, and therefore, the SRS occupies only half of the bandwidth under the same bandwidth.
- the accuracy of the TA caused by the network side device according to the SRS estimation is not high.
- SRS only allows transmission on the last symbol of the subframe in which it is located, and it is difficult to support a large number of users.
- the UE may also send a random access preamble (Preamble) to the network side device on the physical random access channel (PRACH) in the process of random access, so that the network side device
- Preamble a random access preamble
- PRACH physical random access channel
- the transmission delay between the UE and the network side device is estimated according to the Preamble, so that the TA of the UE is adjusted.
- the UE can select one of the sequences to transmit on the PRACH resources. Therefore, one PRACH resource can only support up to 64 UEs to send Preamble, and the number of users that can be supported is small. It is difficult to support a large number of ECO state UEs.
- the PRACH occupies 6 RBs in the frequency domain and 1-3 subframes in the time domain. For the UE in the ECO state, the occupied resources are also large, and resources are wasted.
- the uplink reference signal designed in the embodiment of the present invention only needs to occupy at least one resource block in the frequency domain, for example, can occupy 1 RB-3 RB in the frequency domain, and only needs to occupy one subframe or half subframe in the time domain. It occupies less resources and saves resources.
- the sub-carriers of the uplink reference signal in the at least one resource block are contiguous. Therefore, the uplink reference signal can occupy the entire bandwidth under the same bandwidth, and the TA accuracy estimated by the network side device according to the uplink reference signal is also Higher.
- the sub-carrier spacing of each of the at least one resource block may be 15K, which is not limited in this embodiment of the present invention.
- the uplink reference signal occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located can be used to send the uplink reference signal, and all the symbols in the subframe in which the uplink reference signal is located are implemented.
- Time division multiplexing increases the number of UEs that can be supported, so that a large number of UEs can be supported to transmit the uplink reference signal.
- the uplink reference signal is adapted to the UE in the ECO state, and the network side device does not need to perform channel estimation according to the uplink reference signal sent by the UE in the ECO state.
- the network side device can complete the location tracking of the ECO state UE, the TP attribution tracking of the UE, and the like in the "UE-centric Non-cell" network system scenario, which is provided by the embodiment of the present invention.
- the TA estimation of the ECO state UE can be completed, and the uplink synchronization of the UE is maintained, so that the UE can always be online.
- the ECO state UE only needs to send the uplink reference signal to the network side device in a long period of time, so that the network side device can track the UE, and the uplink reference signal is not frequently sent to the network side device. Therefore, the prior art is related to the prior art. In comparison, the UE is more power efficient and has less overhead on the air interface resources.
- the method provided by the embodiment of the present invention provides an uplink reference signal that is sent by the UE, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, so that the uplink reference signal can be at least One symbol is time division multiplexed, and the uplink symbols in the subframe or time slot in which the at least one symbol is located are used to transmit the uplink reference signal, which ensures that the uplink reference signal can be further on all uplink symbols in the subframe or time slot.
- Time division multiplexing and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, so that the uplink reference signal can be frequency division multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal.
- the uplink reference signal also carries a state transition request initiated by the UE in the ECO state, and implements state transition of the UE from the ECO to the Active state.
- the uplink reference signal by configuring the uplink reference signal to not occupy the last symbol of the subframe in which the at least one symbol is located, collisions with SRSs sent by other active UEs are avoided, and compatibility is enhanced.
- FIG. 11 is a schematic structural diagram of a user equipment UE according to an embodiment of the present invention.
- the UE includes:
- the sending module 1101 is configured to send an uplink reference signal to the network side device.
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send the uplink reference signal; the uplink reference signal sent by the UE occupies at least in the frequency domain.
- One Resource blocks, and the subcarriers in the at least one resource block are consecutive.
- the UE provided by the embodiment of the present invention sends an uplink reference signal to the network side device, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, so that the uplink reference signal can be time-division multiplexed on at least one symbol.
- the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure the bandwidth, so that the uplink reference signal can be frequency-multiplexed and multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal, and is adapted to the ECO.
- the UE also occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
- the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
- the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the state transition request indicates that the UE requests the network side device to switch the UE from the first state in which the UE is currently located.
- the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- the symbol index of the first designated symbol is configured by the network side device.
- the symbol index of the first designated symbol is configured by the network side device by using a system broadcast message or a high layer signaling, where the system broadcast message may be an SIB message, an MIB message, or the like, and the high layer signaling may be RRC signaling. .
- the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe where the at least one symbol is located.
- the UE further includes:
- a receiving module configured to receive uplink reference signal configuration information sent by the network side device, where the sending module is further configured to send the uplink reference signal according to the uplink reference signal configuration information, where the uplink reference signal configuration information includes the following information At least one item:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- FIG. 12 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
- the network side device includes:
- the receiving module 1201 is configured to receive an uplink reference signal sent by the user equipment UE.
- the uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
- the network side device receives the uplink reference signal sent by the user equipment UE, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, so that the uplink reference signal can be scored on at least one symbol. Multiplexing, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure the bandwidth, so that the uplink reference signal can be frequency-multiplexed and multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal. It is adapted to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
- the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
- the network side device further includes:
- a switching module configured to detect, on the first designated symbol, an uplink reference signal sent by the UE, and determine, according to the detection result, whether to switch the UE from the first state to the second state, where the UE is in the first
- An uplink reference signal sent on a designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state to the second state, where the A designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- the network side device further includes:
- a configuration module configured to configure, to the UE, a symbol index of the first designated symbol.
- the configuration module is configured to configure a symbol index of the first designated symbol to the UE by using a system broadcast message, or the configuration module is configured to configure, by using high layer signaling, the symbol index of the first designated symbol to the UE.
- the system broadcast message may be an SIB message, an MIB message, or the like, and the high layer signaling may be RRC signaling.
- the first state is an eco-protection-optimized ECO state
- the second state is an active state
- the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- the network side device further includes:
- a sending module configured to send uplink reference signal configuration information to the UE
- the uplink reference signal configuration information includes at least one of the following information:
- the period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
- the UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information ⁇ ;
- the UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- the UE and the network side device provided by the foregoing embodiments only use the division of the foregoing functional modules when transmitting the uplink reference signal.
- the foregoing functions may be assigned different functions according to requirements.
- the module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
- the UE and the network side device provided by the foregoing embodiment are in the same concept as the method for transmitting the uplink reference signal, and the specific implementation process is described in the method embodiment, and details are not described herein again.
- FIG. 13 is a schematic structural diagram of a user equipment UE according to an embodiment of the present invention.
- the UE includes a communication bus 1301, a memory 1302, a transmitter 1303, a receiver 1304, and a processor 1305.
- the machine 1303, the receiver 1304, and the processor 1305 communicate with each other through the communication bus 1301.
- a processor 1305, configured to call a program stored in the memory 1302, through the transmitter 1303 and the receiver 1304 is in communication with the designated network device, and implements the method steps performed by the UE in the foregoing embodiment. For example, it can be used to implement the function of the transmitting module in FIG.
- the memory 1302 is further configured to store uplink reference signal configuration information sent by the network side device.
- the processor 1305 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. These instructions may be implemented and controlled by a processor therein for performing the methods disclosed in the embodiments of the present invention.
- the processor may also be a general-purpose processor, a digital signal processor (English: digital signal processor, DSP for short), an application-specific integrated circuit (ASIC), or an off-the-shelf programmable gate array. : field programmable gate array (referred to as: FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
- the above general-purpose processor may be a microprocessor or the processor may be any conventional processor, decoder or the like.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the communication bus 1301 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
- various buses are labeled as communication bus 1301 in FIG.
- the UE sends an uplink reference signal to the network side device according to the uplink reference signal configuration information configured by the network side device, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, where the at least one symbol
- the uplink symbols in the subframe in which the symbol is located are used to transmit the uplink reference signal, so that the uplink reference signal can be time-division multiplexed on all uplink symbols of one subframe, and the uplink reference signal sent by the UE occupies a contig in the frequency domain.
- the carrier can be configured with a bandwidth, so that the uplink reference signal can be frequency-division multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal to be adapted to the ECO state UE, and the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, which occupies less resources and saves resources.
- FIG. 14 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
- the network side device may be a base station, a centralized controller, or the like, which is not limited in this embodiment of the present invention.
- the network side device includes a communication bus 1401, a memory 1402, a transmitter 1403, a receiver 1404, and a processor 1405, wherein the memory 1402, the transmitter 1403, the receiver 1404, and the processor 1405 communicate with each other through the communication bus 1401.
- a memory 1402 configured to store a program
- the processor 1405 is configured to invoke a program stored in the memory 1402, and communicate with the designated network device by using the transmitter 1403 and the receiver 1404 to implement the method steps performed by the network side device in the above embodiment.
- the function of the receiving module in FIG. 12 can be implemented.
- the network side device may further include a communication interface, configured to support the network side device and other network side devices in the communication system, such as communication with a core network node.
- a communication interface configured to support the network side device and other network side devices in the communication system, such as communication with a core network node.
- the processor 1405 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. These instructions may be implemented and controlled by a processor therein for performing the methods disclosed in the embodiments of the present invention.
- the processor may also be a general-purpose processor, a digital signal processor (English: digital signal processor, referred to as DSP), an application-specific integrated circuit (ASIC), and an off-the-shelf programmable gate array (English) Text: field programmable gate array, referred to as: FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
- the above general-purpose processor may be a microprocessor or the processor may be any conventional processor, decoder or the like.
- the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the communication bus 1401 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
- various buses are labeled as communication bus 1401 in FIG.
- the network side device may receive the uplink reference signal sent by the user equipment UE, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located
- the uplink reference signal is used to transmit the uplink reference signal, so that the uplink reference signal can be time-multiplexed on all uplink symbols of one subframe, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, so that the uplink reference is used.
- the signal can be frequency-division multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal to be adapted to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupying resources. Less, saving resources.
- a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
- the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.
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Abstract
The present invention relates to the field of communication. Disclosed are a method, a device, and a system for transmission of uplink control information. The method comprising: transmitting, by a user equipment (UE), an uplink reference signal to a network side equipment, wherein the uplink reference signal transmitted by the UE occupies at least one symbol in time domain; the uplink reference signal transmitted by the UE occupies at least one resource block in frequency domain, and subcarriers in the at least one resource block are contiguous. According to the present application, through providing the upper reference signal which occupies at least one symbol in time domain, the uplink reference signal can be time division multiplexed on the at least one symbol; therefore a great number of UEs can be supported to transmit the uplink reference signal, and the method is applicable to ECO-state UEs. Furthermore, the uplink reference signal occupies at least one resource block in frequency domain; therefore, resources are saved due to low resource occupation.
Description
本申请要求于2016年04月08日提交中国专利局、申请号为201610218437.1、发明名称为“上行参考信号的传输方法、设备和系统”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。The present application claims priority to Chinese Patent Application No. 201610218437.1, entitled "Transmission Method, Apparatus and System for Uplink Reference Signals", filed on April 8, 2016, the entire contents of which are incorporated by reference. In this application.
本发明实施例涉及无线通信领域,特别涉及一种上行参考信号的传输方法、设备和系统。The embodiments of the present invention relate to the field of wireless communications, and in particular, to a method, device, and system for transmitting an uplink reference signal.
在无线通信系统中,用户设备(User Equipment,UE)与网络侧设备进行交互时,网络侧设备需要获取UE的位置,才能确定该UE与网络侧设备之间的距离和传输延迟时间,进而确定该UE的定时提前量(Timing Advance,TA),从而实现各UE的上行同步。而在此过程中,UE可以通过发送上行信号的方式实现上述功能,也即是,UE可以向网络侧设备发送上行参考信号,使得网络侧设备根据接收到的上行参考信号获取该UE的位置及估计该UE的TA等。In a wireless communication system, when a user equipment (UE) interacts with a network side device, the network side device needs to acquire the location of the UE, and can determine the distance between the UE and the network side device and the transmission delay time, and then determine The Timing Advance (TA) of the UE, thereby implementing uplink synchronization of each UE. In this process, the UE may perform the foregoing function by sending an uplink signal, that is, the UE may send an uplink reference signal to the network side device, so that the network side device acquires the location of the UE according to the received uplink reference signal and The TA of the UE is estimated.
实际应用中,UE通常需要根据UE的状态进行上行参考信号的发送。例如,在长期演进(Long Term Evolution,LTE)系统中,UE通常在处于连接(connected)态时向网络侧设备发送探测参考信号(Souding Reference Signal,SRS),该SRS是一种上行参考信号,网络侧设备根据该SRS不仅可以进行信道估计,还可以获取UE位置和估计TA。或者,UE可以在处于connected态或空闲(Idle)态时向网络侧设备发送随机接入请求,使得网络侧设备根据该随机接入请求估计TA。而在第五代移动通信技术(The Fifth Generation Mobile Communication Technology,5G)系统中,UE的状态可分为激活(Active)态和生态-保护-优化(Ecology-Conservation-Optimaization,ECO)态,接入网络侧设备的UE可以在这两种状态之间进行切换。其中,Active态与LTE系统中的connected态基本相同,处于此状态的UE与网络侧设备一直保持无线资源控制(Radio Resource Control,RRC)连接,可以随时支持数据传输,而ECO态UE虽然也与网络侧设备一直保持RRC连接,但是仅支持少量数据传输,因而网络侧设备无需对该UE与该网络侧设备之间的信道进行频繁监测与管理,也无需进行信道估计。因此,在5G系统中进行上行参考信号发送时,Active态的UE可以直接参照connected态的UE向网络侧设备发送SRS。In practical applications, the UE usually needs to send an uplink reference signal according to the state of the UE. For example, in a Long Term Evolution (LTE) system, the UE generally sends a Souding Reference Signal (SRS) to the network side device when the connected state is in a connected state, and the SRS is an uplink reference signal. The network side device can not only perform channel estimation according to the SRS, but also acquire the UE location and the estimated TA. Alternatively, the UE may send a random access request to the network side device when in the connected state or the idle state, so that the network side device estimates the TA according to the random access request. In the fifth generation mobile communication technology (5G) system, the state of the UE can be divided into an active state and an Eco-Conservation-Optimization (ECO) state. The UE entering the network side device can switch between these two states. The Active state is basically the same as the connected state in the LTE system. The UE in this state and the network-side device always maintain a Radio Resource Control (RRC) connection, which can support data transmission at any time, and the ECO state UE also The network side device always maintains the RRC connection, but only supports a small amount of data transmission. Therefore, the network side device does not need to frequently monitor and manage the channel between the UE and the network side device, and does not need to perform channel estimation. Therefore, when the uplink reference signal is transmitted in the 5G system, the UE in the active state can directly transmit the SRS to the network side device by referring to the UE in the connected state.
但是,对于ECO态的UE而言,由于5G系统中会存在大量处于ECO态的UE,而当前技术中SRS仅允许在传输上行参考信号的子帧的最后一个符号上进行传输,从而难以支持大量UE来发送上行参考信号。另外,由于网络侧设备无需根据ECO态UE发送的上行参考信号进行信道估计,因此,ECO态的UE所发送的上行参考信号不能直接复用connected态的SRS,亟需一种适应于ECO态UE的上行参考信号传输方法。
However, for a UE in the ECO state, since there are a large number of UEs in the ECO state in the 5G system, in the current technology, the SRS is only allowed to transmit on the last symbol of the subframe in which the uplink reference signal is transmitted, thereby making it difficult to support a large number of The UE sends an uplink reference signal. In addition, since the network side device does not need to perform channel estimation according to the uplink reference signal sent by the UE in the ECO state, the uplink reference signal sent by the UE in the ECO state cannot directly multiplex the SRS in the connected state, and an apparatus suitable for the ECO state is needed. The uplink reference signal transmission method.
发明内容Summary of the invention
为了解决现有技术的问题,本发明实施例提供了一种上行参考信号的传输方法、设备和系统。所述技术方案如下:In order to solve the problem of the prior art, an embodiment of the present invention provides a method, device, and system for transmitting an uplink reference signal. The technical solution is as follows:
第一方面,提供了一种上行参考信号的传输方法,所述方法包括:In a first aspect, a method for transmitting an uplink reference signal is provided, where the method includes:
用户设备UE向网络侧设备发送上行参考信号;The user equipment UE sends an uplink reference signal to the network side device.
其中,所述UE发送的上行参考信号在时域上占用至少一个符号,所述至少一个符号所在子帧内的上行符号均用于发送上行参考信号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send an uplink reference signal; the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
在本发明实施例中,提供了一种在时域上占用至少一个符号的上行参考信号,保证上行参考信号可以在至少一个符号上进行时分复用,从而可以支持大量UE来发送该上行参考信号,适应于ECO态的UE,而且,该上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。In the embodiment of the present invention, an uplink reference signal that occupies at least one symbol in the time domain is provided, so that the uplink reference signal can be time-division multiplexed on at least one symbol, so that a large number of UEs can be supported to transmit the uplink reference signal. The UE is adapted to the ECO state, and the uplink reference signal occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
结合第一方面,在第一方面的第一种可能的实现方式中,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。In conjunction with the first aspect, in a first possible implementation manner of the first aspect, an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
在本发明实施例中,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号,可以保证上行参考信号在一个子帧或一个时隙内的所有符号上进行时分复用,从而可以支持大量用户。In the embodiment of the present invention, the uplink symbol in the subframe or the time slot in which the at least one symbol is located is used to send the uplink reference signal, and the uplink reference signal can be guaranteed to be time-divided on all symbols in one subframe or one slot. Used to support a large number of users.
结合第一方面,在第一方面的第二种可能实现方式中,所述UE在第一指定符号上发送的上行参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求所述网络侧设备将所述UE从当前所处的第一状态切换至第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。With reference to the first aspect, in a second possible implementation manner of the first aspect, the uplink reference signal that is sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the state transition request indicates The UE requests the network side device to switch the UE from the first state to the second state, where the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, N is a positive integer.
本发明实施例中,通过将至少一个符号所在子帧内的N个符号配置为第一指定符号,使得该UE可以通过在该第一指定符号上发送上行参考信号的方式向网络侧设备发起状态转换请求,则网络侧设备若在该第一指定符号上检测到该UE发送的上行参考信号,即可将该UE从当前所处的第一状态切换至第二状态,从而实现UE的状态转换。In the embodiment of the present invention, the N symbols in the subframe where the at least one symbol is located are configured as the first designated symbol, so that the UE can initiate a state to the network side device by sending an uplink reference signal on the first designated symbol. If the network side device detects the uplink reference signal sent by the UE on the first designated symbol, the network side device can switch the current state from the first state to the second state, thereby implementing state transition of the UE. .
结合第一方面的上述任一种可能实现方式,在第一方面的第三种可能实现方式中,所述第一指定符号的符号索引由所述网络侧设备配置。In conjunction with any of the foregoing possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the symbol index of the first designated symbol is configured by the network side device.
本发明实施例中,通过由网络侧设备向UE配置第一指定符号的符号索引,使得UE可以根据该符号索引确定该第一指定符号的位置,从而提高了配置的灵活性。In the embodiment of the present invention, the symbol index of the first designated symbol is configured by the network side device to the UE, so that the UE can determine the location of the first designated symbol according to the symbol index, thereby improving configuration flexibility.
结合第一方面的上述任一种可能实现方式,在第一方面的第四种可能的实现方式中,所述第一指定符号的符号索引由所述网络侧设备通过系统广播消息或者高层信令配置。With reference to any one of the foregoing possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the symbol index of the first designated symbol is sent by the network side device by using a system broadcast message or a high layer signaling Configuration.
结合第一方面的上述任一种可能实现方式,在第一方面的第五种可能实现方式中,所述第一指定符号上的上行参考信号通过预设竞争机制发送。With reference to any one of the foregoing possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
本发明实施例中,UE可以在第一指定符号上通过预设竞争机制发送上行参考信号,使得多个UE可以在该第一指定符号对应的上行共享资源上通过竞争来发送上行参考信号,而无需网络侧设备对该第一指定符号上发送的上行参考信号进行配置和调度。In the embodiment of the present invention, the UE may send the uplink reference signal by using the preset contention mechanism on the first designated symbol, so that multiple UEs may send the uplink reference signal by using the contention on the uplink shared resource corresponding to the first designated symbol. The network side device is not required to configure and schedule the uplink reference signal sent on the first designated symbol.
结合第一方面的上述任一种可能实现方式,在第一方面的第六种可能实现方式中,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。In conjunction with any of the foregoing possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
本发明实施例中,该UE当前所处的第一状态为ECO态,则该状态转换请求可以表示该
UE请求该网络侧设备将该UE从ECO态切换至激活态。In the embodiment of the present invention, if the first state of the UE is currently in the ECO state, the state transition request may indicate the
The UE requests the network side device to switch the UE from the ECO state to the active state.
结合第一方面的上述任一种可能实现方式,在第一方面的第七种可能实现方式中,所述UE发送的上行参考信号不占用所述至少一个符号所在子帧的最后一个符号。With reference to any of the foregoing possible implementation manners of the foregoing aspect, in a seventh possible implementation manner of the foregoing aspect, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
本发明实施例中,该UE发送的上行参考信号不占用该至少一个符号所在子帧的最后一个符号,避免了与其他激活态UE发送的探测参考信号SRS之间产生冲突,增强了兼容性。In the embodiment of the present invention, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located, which avoids conflicts with the sounding reference signal SRS sent by other active UEs, and enhances compatibility.
结合第一方面的上述任一种可能实现方式,在第一方面的第八种可能实现方式中,所述方法还包括:In conjunction with any of the foregoing possible implementations of the first aspect, in an eighth possible implementation manner of the first aspect, the method further includes:
所述UE接收所述网络侧设备发送的上行参考信号配置信息,并根据所述上行参考信号配置信息发送所述上行参考信号;Receiving, by the UE, the uplink reference signal configuration information sent by the network side device, and sending the uplink reference signal according to the uplink reference signal configuration information;
其中,所述上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal configuration information includes at least one of the following information:
所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
本发明实施例中,UE通过接收该网络侧设备发送的上行参考信号配置信息,可以根据该上行参考信号配置信息确定要发送上行参考信号的时域位置、频域位置和码域位置,并在确定的时域位置、频域位置和码域位置上发送上行参考信号,进而保证多个UE可以基于网络侧设备的配置分别向网络侧设备发送上行参考信号,也即是,可以在网络侧设备的调度下采用时分复用、频分复用、码分复用等方式共享资源。In the embodiment of the present invention, the UE determines the time domain location, the frequency domain location, and the code domain location of the uplink reference signal to be sent according to the uplink reference signal configuration information by receiving the uplink reference signal configuration information sent by the network side device, and The uplink reference signal is sent on the determined time domain location, the frequency domain location, and the code domain location, so that multiple UEs can send uplink reference signals to the network side device respectively according to the configuration of the network side device, that is, the network side device can be Under the scheduling, resources are shared by means of time division multiplexing, frequency division multiplexing, code division multiplexing, and the like.
第二方面,提供了一种上行参考信号的传输方法,所述方法包括:In a second aspect, a method for transmitting an uplink reference signal is provided, where the method includes:
网络侧设备接收用户设备UE发送的上行参考信号;Receiving, by the network side device, an uplink reference signal sent by the user equipment UE;
其中,所述UE发送的上行参考信号在时域上占用至少一个符号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive of.
结合第二方面,在第二方面的第一种可能实现方式中,所述至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。With reference to the second aspect, in a first possible implementation manner of the second aspect, an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
结合第二方面的上述任一种可能实现方式,在第二方面的第二种可能实现方式中,所述方法还包括:With reference to any of the foregoing possible implementation manners of the second aspect, in a second possible implementation manner of the second aspect, the method further includes:
所述网络侧设备在第一指定符号上检测所述UE发送的上行参考信号,并根据检测结果确定是否将所述UE从当前所处的第一状态切换至第二状态,其中,所述UE在所述第一指定符号上发送的上行参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求所述网络侧设备将所述UE从所述第一状态切换至所述第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。The network side device detects an uplink reference signal sent by the UE on the first designated symbol, and determines, according to the detection result, whether to switch the UE from the first state to the second state, where the UE is The uplink reference signal sent on the first designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state Up to the second state, the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
结合第二方面的上述任一种可能实现方式,在第二方面的第三种可能实现方式中,所述方法还包括:With reference to any of the foregoing possible implementation manners of the second aspect, in a third possible implementation manner of the second aspect, the method further includes:
所述网络侧设备向所述UE配置所述第一指定符号的符号索引。The network side device configures a symbol index of the first designated symbol to the UE.
结合第二方面的上述任一种可能实现方式,在第二方面的第四种可能的实现方式中,所
述方法还包括:With reference to any of the foregoing possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect,
The method also includes:
所述网络侧设备通过系统广播消息或者高层信令向所述UE配置所述第一指定符号的符号索引。And the network side device configures, by using a system broadcast message or a high layer signaling, a symbol index of the first designated symbol to the UE.
结合第二方面的上述任一种可能实现方式,在第二方面的第五种可能实现方式中,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。With reference to any one of the foregoing possible implementation manners of the second aspect, in a fifth possible implementation manner of the second aspect, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
结合第二方面的上述任一种可能实现方式,在第二方面的第六种可能实现方式中,所述UE发送的上行参考信号不占用所述至少一个符号所在子帧的最后一个符号。With reference to any of the foregoing possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
结合第二方面的上述任一种可能实现方式,在第一方面的第七种可能实现方式中,所述方法还包括:With reference to any of the foregoing possible implementations of the second aspect, in a seventh possible implementation manner of the first aspect, the method further includes:
向所述UE发送上行参考信号配置信息,所述上行参考信号配置信息包括以下信息中的至少一项:And transmitting uplink reference signal configuration information to the UE, where the uplink reference signal configuration information includes at least one of the following information:
所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
第三方面,提供了一种用户设备UE,所述UE包括:A third aspect provides a user equipment UE, where the UE includes:
发送模块,用于向网络侧设备发送上行参考信号;a sending module, configured to send an uplink reference signal to the network side device;
其中,所述UE发送的上行参考信号在时域上占用至少一个符号,所述至少一个符号所在子帧内的上行符号均用于发送上行参考信号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send an uplink reference signal; the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
结合第三方面,在第三方面的第一种可能实现方式中,所述至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。In conjunction with the third aspect, in a first possible implementation manner of the third aspect, an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
结合第三方面的上述任一种可能实现方式,在第三方面的第二种可能实现方式中,所述UE在第一指定符号上发送的上行参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求网络侧设备将所述UE从当前所处的第一状态切换至第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。With reference to any one of the foregoing possible implementation manners of the third aspect, in a second possible implementation manner of the third aspect, the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request The state transition request indicates that the UE requests the network side device to switch the UE from the first state to the second state, where the first designated symbol is a subframe or a time slot in which the at least one symbol is located. N symbols inside, N is a positive integer.
结合第三方面的上述任一种可能实现方式,在第三方面的第三种可能实现方式中,所述第一指定符号的符号索引由所述网络侧设备配置。With reference to any of the foregoing possible implementation manners of the third aspect, in a third possible implementation manner of the third aspect, the symbol index of the first designated symbol is configured by the network side device.
结合第三方面的上述任一种可能实现方式,在第三方面的第四种可能实现方式中,所述第一指定符号上的上行参考信号通过预设竞争机制发送。With reference to any of the foregoing possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect, the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
结合第三方面的上述任一种可能实现方式,在第三方面的第五种可能实现方式中,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。With reference to any one of the foregoing possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
结合第三方面的上述任一种可能实现方式,在第三方面的第六种可能实现方式中,所述UE发送地上行参考信号不占用所述至少一个符号所在子帧的的最后一个符号。With reference to any one of the foregoing possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
结合第三方面的上述任一种可能实现方式,在第三方面的第七种可能实现方式中,所述UE还包括:
With reference to any of the foregoing possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the UE further includes:
接收模块,用于接收所述网络侧设备发送的上行参考信号配置信息;a receiving module, configured to receive uplink reference signal configuration information sent by the network side device;
所述发送模块还用于根据所述上行参考信号配置信息发送所述上行参考信号;The sending module is further configured to send the uplink reference signal according to the uplink reference signal configuration information;
其中,所述上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal configuration information includes at least one of the following information:
所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
第四方面,提供了一种网络侧设备,所述网络侧设备包括:In a fourth aspect, a network side device is provided, where the network side device includes:
接收模块,用于接收用户设备UE发送的上行参考信号;a receiving module, configured to receive an uplink reference signal sent by the user equipment UE;
其中,所述UE发送的上行参考信号在时域上占用至少一个符号,所述至少一个符号所在子帧内的上行符号均用于发送上行参考信号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send an uplink reference signal; the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
结合第四方面,在第四方面的第一种可能实现方式中,所述至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to send an uplink reference signal.
结合第四方面的第一种可能实现方式,在第四方面的第二种可能实现方式中,所述网络侧设备还包括:With reference to the first possible implementation of the fourth aspect, in a second possible implementation manner of the fourth aspect, the network side device further includes:
切换模块,用于在第一指定符号上检测到所述UE发送的上行参考信号,并根据检测结果确定是否将所述UE从当前所处的第一状态切换至第二状态,其中,所述UE在所述第一指定符号上发送的上行参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求所述网络侧设备将所述UE从所述第一状态切换至所述第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。And a switching module, configured to detect, on the first designated symbol, an uplink reference signal sent by the UE, and determine, according to the detection result, whether to switch the UE from the first state to the second state, where the The uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to use the UE from the first state. Switching to the second state, the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
结合第四方面的第一种可能实现方式,在第四方面的第三种可能实现方式中,所述网络侧设备还包括:With reference to the first possible implementation of the fourth aspect, in a third possible implementation manner of the fourth aspect, the network side device further includes:
配置模块,用于向所述UE配置所述第一指定符号的符号索引。And a configuration module, configured to configure, to the UE, a symbol index of the first designated symbol.
结合第四方面的第一种可能实现方式,在第四方面的第四种可能实现方式中,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。In conjunction with the first possible implementation of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
结合第四方面的第一种可能实现方式,在第四方面的第五种可能实现方式中,所述UE发送的上行参考信号不占用所述至少一个符号所在子帧的最后一个符号。In conjunction with the first possible implementation of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
结合第四方面的第一种可能实现方式,在第一方面的第六种可能实现方式中,所述网络侧设备还包括发送模块,用于向所述UE发送上行参考信号配置信息;所述上行参考信号配置信息包括以下信息中的至少一项:With reference to the first possible implementation manner of the foregoing aspect, in a sixth possible implementation manner of the foregoing aspect, the network side device further includes: a sending module, configured to send uplink reference signal configuration information to the UE; The uplink reference signal configuration information includes at least one of the following information:
所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;
The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
第五方面,提供了一种上行参考信号的传输系统,所述系统包括上述第三方面提供的任一所述的用户设备UE和上述第四方面提供的任一所述的网络侧设备。The fifth aspect provides a transmission system for an uplink reference signal, where the system includes any one of the user equipment UE according to any one of the foregoing aspects, and the network side device of any one of the foregoing fourth aspects.
本发明实施例提供的技术方案带来的有益效果是:通过本发明实施例提供的方法,UE向网络侧设备发送的上行参考信号可以在时域上占用至少一个符号,保证上行参考信号可以在至少一个符号上进行时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,进而保证上行参考信号可在整个系统带宽上进行频分复用,从而可以支持大量UE来发送上行参考信号,适应于ECO态UE,而且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。The technical solution provided by the embodiment of the present invention has the beneficial effects that the uplink reference signal sent by the UE to the network side device can occupy at least one symbol in the time domain to ensure that the uplink reference signal can be in the method provided by the embodiment of the present invention. Performing time division multiplexing on at least one symbol, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, thereby ensuring that the uplink reference signal can be frequency division multiplexed over the entire system bandwidth, thereby supporting A large number of UEs are used to transmit the uplink reference signal, and are adapted to the ECO state UE. Moreover, the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
图1是本发明实施例提供的一种上行参考信号的传输系统结构示意图;1 is a schematic structural diagram of a transmission system of an uplink reference signal according to an embodiment of the present invention;
图2是本发明实施例提供的一种5G系统的结构示意图;2 is a schematic structural diagram of a 5G system according to an embodiment of the present invention;
图3是本发明实施例提供的一种UE状态转换示意图;FIG. 3 is a schematic diagram of UE state transition according to an embodiment of the present invention; FIG.
图4是本发明实施例提供的一种上行参考信号的传输方法流程图;4 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention;
图5是本发明实施例提供的另一种上行参考信号的传输方法流程图;FIG. 5 is a flowchart of another method for transmitting an uplink reference signal according to an embodiment of the present invention;
图6是本发明实施例提供的又一种上行参考信号的传输方法流程图;FIG. 6 is a flowchart of still another method for transmitting an uplink reference signal according to an embodiment of the present invention;
图7是本发明实施例提供的一种上行参考信号所在子帧的结构示意图;FIG. 7 is a schematic structural diagram of a subframe in which an uplink reference signal is located according to an embodiment of the present disclosure;
图8是本发明实施例提供的一种上行参考信号所在时隙的结构示意图;FIG. 8 is a schematic structural diagram of a time slot in which an uplink reference signal is located according to an embodiment of the present disclosure;
图9是本发明实施例提供的一种上行参考信号所在资源块的结构示意图;FIG. 9 is a schematic structural diagram of a resource block in which an uplink reference signal is located according to an embodiment of the present disclosure;
图10是本发明实施例提供的另一种上行参考信号所在时隙的结构示意图;10 is a schematic structural diagram of another time slot in which an uplink reference signal is provided according to an embodiment of the present invention;
图11是本发明实施例提供的一种用户设备UE的结构示意图;FIG. 11 is a schematic structural diagram of a user equipment UE according to an embodiment of the present disclosure;
图12是本发明实施例提供的一种网络侧设备的结构示意图;FIG. 12 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure;
图13是本发明实施例提供的一种用户设备UE的结构示意图;FIG. 13 is a schematic structural diagram of a user equipment UE according to an embodiment of the present disclosure;
图14是本发明实施例提供的一种网络侧设备的结构示意图。FIG. 14 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.
图1是本发明实施例提供的一种上行参考信号的传输系统结构示意图。参见图1,该上行参考信号的传输系统100包括:用户设备UE101和网络侧设备102。FIG. 1 is a schematic structural diagram of a transmission system of an uplink reference signal according to an embodiment of the present invention. Referring to FIG. 1, the uplink reference signal transmission system 100 includes a user equipment UE101 and a network side equipment 102.
该UE101用于向该网络侧设备102发送上行参考信号;The UE 101 is configured to send an uplink reference signal to the network side device 102.
该网络侧设备102用于接收该UE101发送的上行参考信号。The network side device 102 is configured to receive an uplink reference signal sent by the UE 101.
其中,该UE101发送的上行参考信号在时域上占用至少一个符号,该UE101发送的上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。
The uplink reference signal sent by the UE 101 occupies at least one symbol in the time domain, and the uplink reference signal sent by the UE 101 occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
可选地,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。Optionally, the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
可选地,该网络侧设备102可以向UE101发送上行参考信号配置信息;该UE101可以基于该网络侧设备102配置的上行参考信号配置信息,向该网络侧设备102发送上行参考信号。Optionally, the network side device 102 may send uplink reference signal configuration information to the UE 101. The UE 101 may send an uplink reference signal to the network side device 102 based on the uplink reference signal configuration information configured by the network side device 102.
其中,该上行参考信号的传输系统可以为LTE系统或者5G系统,当然也可以为其他无线通信系统,本发明实施例对此不做限定。该网络侧设备可以为演进型基站(evolved Node B,eNB)或者集中控制器,当然也可以为其他网络侧设备,本发明实施例对此也不做限定。例如,在LTE系统中该网络侧设备可以为eNB,在5G系统中该网络侧设备可以为集中控制器。The transmission system of the uplink reference signal may be an LTE system or a 5G system, and may be other wireless communication systems, which is not limited in this embodiment of the present invention. The network side device may be an evolved Node B (eNB) or a centralized controller, and may also be other network side devices, which is not limited in this embodiment of the present invention. For example, in the LTE system, the network side device may be an eNB, and in the 5G system, the network side device may be a centralized controller.
以该上行参考信号的传输系统为5G系统为例,则该5G系统可以为“UE-centric”(以UE为中心)无线网络系统,且在该“UE-centric”无线网络系统中可以引入Non-cell(无小区)网络架构,构成“UE-centric Non-cell”网络系统。Taking the transmission system of the uplink reference signal as an example of a 5G system, the 5G system may be a "UE-centric" (UE-centric) wireless network system, and Nonn may be introduced in the "UE-centric" wireless network system. A -cell (no cell) network architecture that constitutes a "UE-centric Non-cell" network system.
也即是,参见图2,该5G系统可以在某个特定的区域内部署大量小站2011,构成一个超级小区(Hyper cell)201,则每个小站即为该超级小区201内的一个传输点(Transmission Point,TP),且每个小站2011均与集中控制器202连接。其中,针对处于该超级小区201内的UE203,集中控制器(controller)202可以为该UE203分配一个唯一的标识,如UE ID(Identification,标识),使得该UE203在该超级小区201内移动时,集中控制器202可以识别该UE203。That is, referring to FIG. 2, the 5G system can deploy a large number of small stations 2011 in a specific area to form a hyper cell 201, and each small station is a transmission in the super cell 201. Transmission Point (TP), and each station 2011 is connected to the centralized controller 202. The central controller (controller) 202 can allocate a unique identifier, such as a UE ID (Identification), to the UE 203 in the super cell 201, so that when the UE 203 moves in the super cell 201, The centralized controller 202 can identify the UE 203.
进一步地,在该“UE-centric Non-cell”网络系统中,为了保证UE永远在线(always-online),并能够随时进行数据传输,可以将该系统中的UE分为两种状态:Active态和ECO态。其中,Active态UE可随时进行数据传输,而ECO态UE仅支持少量的数据传输,当UE接入该超级小区后,会在这两种状态之间进行切换。例如,参见图3,当UE处于Ative时,若该UE数据传送完毕之后的预设时长内再没有数据需要传输,则该UE便会从Active态切换至ECO态;之后,当有大于预设字节的数据包需要传输时,该UE便又会从ECO态切换回Ative态。其中,该预设字节可以为20byte、25byte、30byte等,本发明实施例对此不做限定。Further, in the "UE-centric Non-cell" network system, in order to ensure that the UE is always-online and can perform data transmission at any time, the UE in the system can be divided into two states: an Active state. And ECO state. The active state UE can perform data transmission at any time, and the ECO state UE only supports a small amount of data transmission. When the UE accesses the super cell, it will switch between the two states. For example, referring to FIG. 3, when the UE is in Ative, if there is no data to be transmitted within the preset duration after the UE data transmission is completed, the UE will switch from the Active state to the ECO state; When the byte packet needs to be transmitted, the UE will switch back from the ECO state to the Ative state. The preset byte may be 20 bytes, 25 bytes, 30 bytes, etc., which is not limited in this embodiment of the present invention.
本发明实施例中,为了保证集中控制器202能够实时识别UE203的位置,集中控制器202可以向UE203发送上行参考信号配置信息,使得UE203基于集中控制器202配置的上行参考信号配置信息,向集中控制器202发送上行参考信号。其中,该UE203发送的上行参考信号在时域上占用至少一个符号,该UE203发送的上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。In the embodiment of the present invention, in order to ensure that the centralized controller 202 can identify the location of the UE 203 in real time, the centralized controller 202 can send the uplink reference signal configuration information to the UE 203, so that the UE 203 concentrates on the uplink reference signal configuration information configured by the centralized controller 202. The controller 202 transmits an uplink reference signal. The uplink reference signal sent by the UE 203 occupies at least one symbol in the time domain, and the uplink reference signal sent by the UE 203 occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
集中控制器202接收到该UE203发送的上行参考信号,即可根据该上行参考信号获取该UE203的位置、TA等信息。一方面,该集中控制器202可以根据获取到的位置信息为该UE203选择最优的TP集合204为该UE203服务,并更新TP-UE关系表;另一方面,该集中控制器202还可以根据获取到的TA信息,调整该UE203的TA。The centralized controller 202 receives the uplink reference signal sent by the UE 203, and acquires information such as the location, TA, and the like of the UE 203 according to the uplink reference signal. On the one hand, the centralized controller 202 can select the optimal TP set 204 for the UE 203 to serve the UE 203 according to the acquired location information, and update the TP-UE relationship table; on the other hand, the centralized controller 202 can also The obtained TA information is adjusted to adjust the TA of the UE 203.
例如,当该UE203在超级小区201内移动时,集中控制器202可以根据该UE203发送的上行参考信号,获取到该UE203的位置,并根据UE203的位置为该UE203选择新的TP集合204为其服务,从而避免真正的小区切换,实现UE业务的连续性。For example, when the UE 203 moves within the super cell 201, the centralized controller 202 may acquire the location of the UE 203 according to the uplink reference signal sent by the UE 203, and select a new TP set 204 for the UE 203 according to the location of the UE 203. Service, thereby avoiding true cell handover and achieving continuity of UE services.
进一步地,该UE203还可以在处于Acticve态时向集中控制器202发送SRS,而在处于ECO态时向集中控制器202发送本发明实施例所示的上行参考信号。相应地,集中控制器202根据Acticve态的UE203发送的SRS不仅可以获取UE203的位置、TA等信息,还可以进行
信道估计,而根据ECO态的UE203发送的上行参考信号则无需进行信道估计。Further, the UE 203 may also send the SRS to the centralized controller 202 when in the acticve state, and send the uplink reference signal shown in the embodiment of the present invention to the centralized controller 202 when in the ECO state. Correspondingly, the centralized controller 202 can obtain not only the location of the UE 203, the TA, etc., but also the SRS sent by the UE 203 in the Acticve state.
Channel estimation, and the uplink reference signal transmitted by the UE 203 according to the ECO state does not need to perform channel estimation.
图4是本发明实施例提供的一种上行参考信号的传输方法流程图,该方法的执行主体为用户设备UE,参见图4,该方法包括以下步骤:FIG. 4 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention. The method is performed by a user equipment UE. Referring to FIG. 4, the method includes the following steps:
步骤401:用户设备UE向网络侧设备发送上行参考信号。Step 401: The user equipment UE sends an uplink reference signal to the network side device.
其中,该UE发送的上行参考信号在时域上占用至少一个符号;该UE发送的上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
通过本发明实施例提供的方法,UE可以向网络侧设备发送上行参考信号,其中,该UE发送的上行参考信号在时域上可以占用至少一个符号,保证上行参考信号可以在至少一个符号上进行时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,进而保证上行参考信号可在整个系统带宽上频分复用,从而可以支持大量UE来发送上行参考信号,适应于ECO态UE,而且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。According to the method provided by the embodiment of the present invention, the UE may send an uplink reference signal to the network side device, where the uplink reference signal sent by the UE may occupy at least one symbol in the time domain, and ensure that the uplink reference signal can be performed on at least one symbol. Time division multiplexing, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, thereby ensuring that the uplink reference signal can be frequency division multiplexed over the entire system bandwidth, thereby supporting a large number of UEs to send uplink reference. The signal is adapted to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
可选地,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。Optionally, the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
可选地,该UE在第一指定符号上发送的上行参考信号用于表示该UE发起状态转换请求,该状态转换请求表示该UE请求该网络侧设备将该UE从当前所处的第一状态切换至第二状态,该第一指定符号为该至少一个符号所在子帧或时隙内的N个符号,N为正整数。Optionally, the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the state transition request indicates that the UE requests the network side device to take the UE from the current first state. Switching to the second state, the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
可选地,该第一指定符号的符号索引由该网络侧设备配置。Optionally, the symbol index of the first designated symbol is configured by the network side device.
具体地,该第一指定符号的符号索引由该网络侧设备通过系统广播消息或者高层信令配置,其中,该系统广播消息可以为系统信息块(SystemInformationBlock,SIB)消息、主信息块(MasterInformation Block,MIB)消息等,该高层信令可以为RRC信令。Specifically, the symbol index of the first designated symbol is configured by the network side device by using a system broadcast message or a high layer signaling, where the system broadcast message may be a System Information Block (SIB) message or a master information block (Master Information Block). , MIB) message, etc., the higher layer signaling may be RRC signaling.
可选地,该第一指定符号上的上行参考信号通过预设竞争机制发送。Optionally, the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
可选地,该第一状态为生态-保护-优化ECO态,该第二状态为激活态。Optionally, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
可选地,该UE发送的上行参考信号不占用该至少一个符号所在子帧的最后一个符号。Optionally, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
可选地,该方法还包括:Optionally, the method further includes:
该UE接收该网络侧设备发送的上行参考信号配置信息,并根据该上行参考信号配置信息发送该上行参考信号;The UE receives the uplink reference signal configuration information sent by the network side device, and sends the uplink reference signal according to the uplink reference signal configuration information;
其中,该上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal configuration information includes at least one of the following information:
该UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
该UE发送上行参考信号的周期信息和该UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the periodic information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
该UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
该UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
上述所有可选技术方案,可以采用任意结合形成本申请的可选实施例,在此不再一一赘述。All the foregoing optional technical solutions may be used in any combination to form an optional embodiment of the present application, and details are not described herein again.
图5是本发明实施例提供的一种上行参考信号的传输方法流程图,该方法的执行主体为网络侧设备,参见图5,该方法包括以下步骤:
FIG. 5 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention. The execution body of the method is a network side device. Referring to FIG. 5, the method includes the following steps:
步骤501:网络侧设备接收用户设备UE发送的上行参考信号。Step 501: The network side device receives an uplink reference signal sent by the user equipment UE.
其中,该UE发送的上行参考信号在时域上占用至少一个符号;该UE发送的上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
通过本发明实施例提供的方法,网络侧设备可以接收用户设备UE发送的上行参考信号,其中,该UE发送的上行参考信号可以在时域上占用至少一个符号,保证上行参考信号可以在至少一个符号上进行时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,进而保证上行参考信号可在整个系统带宽上频分复用,从而可以支持大量UE来发送上行参考信号,适应于ECO态UE,而且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。With the method provided by the embodiment of the present invention, the network side device may receive the uplink reference signal sent by the user equipment UE, where the uplink reference signal sent by the UE may occupy at least one symbol in the time domain, and ensure that the uplink reference signal may be at least one. The symbol is time-division multiplexed, and the uplink reference signal sent by the UE occupies consecutive sub-carriers in the frequency domain and can configure the bandwidth, thereby ensuring that the uplink reference signal can be frequency-multiplexed and multiplexed over the entire system bandwidth, thereby supporting a large number of UEs. The uplink reference signal is sent to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
可选地,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。Optionally, the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
可选地,该方法还包括:Optionally, the method further includes:
该网络侧设备在第一指定符号上检测该UE发送的上行参考信号,并根据检测结果确定是否将该UE从当前所处的第一状态切换至第二状态,其中,该UE在该第一指定符号上发送的上行参考信号用于表示该UE发起状态转换请求,该状态转换请求表示该UE请求该网络侧设备将该UE从该第一状态切换至该第二状态,该第一指定符号为该至少一个符号所在子帧或时隙内的N个符号,N为正整数。The network side device detects an uplink reference signal sent by the UE on the first designated symbol, and determines, according to the detection result, whether to switch the UE from the first state to the second state, where the UE is in the first state. The uplink reference signal sent on the designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state to the second state, the first designated symbol N is a positive integer for the N symbols in the subframe or slot in which the at least one symbol is located.
可选地,该方法还包括:Optionally, the method further includes:
该网络侧设备向该UE配置该第一指定符号的符号索引。The network side device configures a symbol index of the first designated symbol to the UE.
具体地,该网络侧设备可以通过系统广播消息或者高层信令向该UE配置该第一指定符号的符号索引,其中,该系统广播消息可以为SIB消息、MIB消息等,该高层信令可以为RRC信令。Specifically, the network side device may configure a symbol index of the first designated symbol to the UE by using a system broadcast message or a high layer signaling, where the system broadcast message may be an SIB message, an MIB message, or the like, and the high layer signaling may be RRC signaling.
可选地,该第一状态为生态-保护-优化ECO态,该第二状态为激活态。Optionally, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
可选地,该UE发送的上行参考信号不占用该至少一个符号所在子帧的最后一个符号。Optionally, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
可选地,该方法还包括:Optionally, the method further includes:
向该UE发送上行参考信号配置信息,该上行参考信号配置信息包括以下信息中的至少一项:And transmitting, to the UE, uplink reference signal configuration information, where the uplink reference signal configuration information includes at least one of the following information:
该UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
该UE发送上行参考信号的周期信息和该UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the periodic information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
该UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
该UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
上述所有可选技术方案,可以采用任意结合形成本申请的可选实施例,在此不再一一赘述。All the foregoing optional technical solutions may be used in any combination to form an optional embodiment of the present application, and details are not described herein again.
图6是本发明实施例提供的一种上行参考信号的传输方法流程图,该方法的执行主体为UE和网络侧设备,参见图6,该方法包括以下步骤:FIG. 6 is a flowchart of a method for transmitting an uplink reference signal according to an embodiment of the present invention. The method is performed by a UE and a network side device. Referring to FIG. 6, the method includes the following steps:
步骤601:网络侧设备向UE发送上行参考信号配置信息。Step 601: The network side device sends uplink reference signal configuration information to the UE.
本发明实施例提供了一种上行参考信号,该上行参考信号在时域上占用至少一个符号,
该上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。An embodiment of the present invention provides an uplink reference signal, where the uplink reference signal occupies at least one symbol in a time domain,
The uplink reference signal occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are contiguous.
可选地,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。Optionally, the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
也即是,该UE发送的上行参考信号可以以子帧为单位进行发送,该上行参考信号所在子帧的上行符号均可以用于发送上行参考信号,其中,该子帧可以为LTE系统中定义的子帧,也可以为未来5G系统中定义的子帧,本发明实施例对此不做限定。或者,该UE发送的上行参考信号可以以时隙为单位进行发送,该上行参考信号所在时隙的上行符号均可以用于发送上行参考信号,其中,该时隙可以为LTE系统中定义的子帧,也可以为未来5G系统中定义的时隙,本发明实施例对此也不做限定。That is, the uplink reference signal sent by the UE may be sent in a subframe, and the uplink symbol of the subframe in which the uplink reference signal is located may be used to send an uplink reference signal, where the subframe may be defined in the LTE system. The sub-frames that are defined in the future 5G system are not limited in this embodiment of the present invention. Alternatively, the uplink reference signal sent by the UE may be sent in units of time slots, and the uplink symbols of the time slot in which the uplink reference signal is located may be used to send an uplink reference signal, where the time slot may be a sub-defined in the LTE system. The frame may also be a time slot defined in a future 5G system, which is not limited in this embodiment of the present invention.
其中,该上行符号是指用于发送上行信息的符号,为了便于说明,接下来将以该上行参考信号所在子帧或时隙内的全部符号均为上行符号为例进行说明。The uplink symbol is a symbol for transmitting uplink information. For convenience of description, all the symbols in the subframe or time slot in which the uplink reference signal is located are all uplink symbols as an example.
为了保证UE可以在指定的时域资源和频域资源上发送该上行参考信号,该网络侧设备可以向UE发送上行参考信号配置信息,以指示该UE根据该上行参考信号配置信息向该网络侧设备发送上行参考信号。In order to ensure that the UE can send the uplink reference signal on the specified time domain resource and the frequency domain resource, the network side device may send the uplink reference signal configuration information to the UE, to indicate that the UE sends the uplink reference signal configuration information to the network side. The device sends an uplink reference signal.
其中,该上行参考信号可以为跟踪信号(tracking),本发明实施例对此不做限定。其中,该上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal may be a tracking signal, which is not limited in this embodiment of the present invention. The uplink reference signal configuration information includes at least one of the following information:
该UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息该UE发送上行参考信号的周期信息和该UE发送上行参考信号的符号相对于第二指定符号的偏移量信息该UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;该UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。。The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe The UE sends the periodic information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α; the UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain. .
其中,该上行参考信号配置信息可以为具体参数的值,也可以为指示信息,本发明实施例对此不做限定。例如,在该网络侧设备向UE发送上述上行参考信息配置信息的过程中,可以直接向UE发送对应参数的值,例如直接发送对应等参数的值,也可以向UE发送指示信息,以指示UE按照该指示信息获取对应参数的值。The uplink reference signal configuration information may be a value of a specific parameter, or may be an indication information, which is not limited in this embodiment of the present invention. For example, in the process of the network side device transmitting the foregoing uplink reference information configuration information to the UE, the value of the corresponding parameter may be directly sent to the UE, for example, directly sending the corresponding The value of the parameter may also be sent to the UE to indicate that the UE obtains the value of the corresponding parameter according to the indication information.
具体地,该上行参考信号配置信息可以分为小区级(cell-specific)配置信息和UE级(UE-specific)配置信息,其中,cell-specific配置信息用于指示该小区内允许发送上行参考信号的资源,UE-specific配置信息用于指示指定UE发送上行参考信号的资源。Specifically, the uplink reference signal configuration information may be divided into cell-specific configuration information and UE-specific configuration information, where the cell-specific configuration information is used to indicate that the uplink reference signal is allowed to be sent in the cell. The UE-specific configuration information is used to indicate a resource that the designated UE sends the uplink reference signal.
实际应用中,该网络侧设备可以通过系统广播消息向UE发送cell-specific配置信息,例如可以通过SIB消息或者MIB消息向UE发送cell-specific配置信息;该网络侧设备也可以通过高层信令向UE发送UE-specific配置信息,例如可以通过RRC信令向UE发送UE-specific配置信息,本发明实施例对此不做限定。In a practical application, the network side device may send the cell-specific configuration information to the UE by using the system broadcast message, for example, the cell-specific configuration information may be sent to the UE by using the SIB message or the MIB message; The UE sends the UE-specific configuration information, for example, the UE-specific configuration information can be sent to the UE through RRC signaling, which is not limited in this embodiment of the present invention.
1)cell-specific配置信息可以包括该UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息根据和即可确定该UE所在小区内用于发送上行参考信号的子帧集合。1) The cell-specific configuration information may include the period information of the uplink reference signal sent by the cell where the UE is located. Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe according to with The set of subframes for transmitting the uplink reference signal in the cell where the UE is located may be determined.
其中,为子帧号,为该UE所在小区内用于发送上行参考信号的子帧相对于指定子帧的偏移量,为该UE所在小区发送上行参考信号的周期。则该子帧号对应的子帧即为该小区内用于发送上行参考信号的子帧。
among them, For the subframe number, The offset of the subframe used for transmitting the uplink reference signal in the cell where the UE is located, with respect to the specified subframe, The period in which the uplink reference signal is sent for the cell where the UE is located. Then the subframe number The corresponding subframe is a subframe for transmitting an uplink reference signal in the cell.
另外,在该网络侧设备向该小区内的UE发送cell-specific配置信息的过程中,该网络侧设备可以向UE同时发送和例如,该网络侧设备可以向UE发送和的联合索引Index来同时指示该和该UE可以根据该联合索引确定和进而确定该UE所在小区内用于发送上行参考信号的子帧。In addition, in the process that the network side device sends the cell-specific configuration information to the UE in the cell, the network side device may send the UE to the UE simultaneously. with For example, the network side device can send to the UE with Joint index of Index to indicate this at the same time with The UE can be determined according to the joint index with The subframe for transmitting the uplink reference signal in the cell where the UE is located is further determined.
2)UE-specific配置信息可以包括该UE发送上行参考信号的周期信息和该UE发送上行参考信号的符号相对于第二指定符号的偏移量信息该UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α,以及该UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。2) UE-specific configuration information may include period information of the uplink reference signal sent by the UE And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol The UE sends the sequence index information (u, v) of the uplink reference signal and the cyclic shift information α, and the frequency domain start position information f 0 and the occupied bandwidth information W of the UE transmitting the uplink reference signal in the frequency domain.
可选地,该UE-specific配置信息也可以包括该UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息本发明实施例对此不做限定。Optionally, the UE-specific configuration information may also include period information of the uplink reference signal sent by the cell where the UE is located. Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe This embodiment of the present invention does not limit this.
例如,在一种可能的实现方式中,该网络侧设备可以向UE发送配置参数来指示该UE所在小区发送上行参考信号的周期,例如若该配置参数为00,则表示该UE所在小区发送上行参考信号的周期为5个子帧长度,若该配置参数为01,则表示该UE所在小区发送上行参考信号的周期为10个子帧长度等。另外,该网络侧设备还可以向UE发送配置参数来指示发送上行参考信号的子帧相对于指定子帧的偏移量,例如,以该指定子帧为0号子帧为例,若该配置参数为00,则表示发送上行参考信号的子帧相对于0号子帧的偏移量为0,若该配置参数为01,则表示发送上行参考信号的子帧相对于0号子帧的偏移量为1等。其中,该配置参数和该配置参数的大小均可为2bit,本发明实施例对此不做限定。For example, in a possible implementation manner, the network side device may send the message to the UE. Setting a parameter to indicate a period in which the cell where the UE is located sends an uplink reference signal, for example, if If the configuration parameter is 00, the period in which the cell in which the UE is located sends the uplink reference signal is 5 subframe lengths. If the configuration parameter is 01, the period in which the cell in which the UE is located sends the uplink reference signal is 10 subframe lengths. In addition, the network side device can also send to the UE. The configuration parameter is used to indicate the offset of the subframe in which the uplink reference signal is sent with respect to the specified subframe, for example, the subframe of the specified subframe is 0, if If the configuration parameter is 00, the offset of the subframe that sends the uplink reference signal relative to the subframe 0 is 0. If the configuration parameter is 01, the offset of the subframe in which the uplink reference signal is transmitted with respect to the subframe 0 is 1 or the like. Among them, the Configuration parameters and the The size of the configuration parameter may be 2 bits, which is not limited in this embodiment of the present invention.
通过上述和的配置,可以得到一个子帧集合,则该小区内的所有UE均可以在该子帧集合对应的子帧上发送上行参考信号,为了便于说明,本发明实施例中将该子帧集合对应的子帧称之为上行参考信号子帧。针对该小区内的某一个UE,该网络侧设备还需要为该UE分配发送上行参考信号的子帧,也即是,从该子帧集合中选取部分子帧作为该UE发送上行参考信号的子帧。Through the above with The configuration may be such that a set of subframes is obtained, and all the UEs in the cell may send an uplink reference signal in the subframe corresponding to the subframe set. For convenience of description, in the embodiment of the present invention, the subframe set corresponds to A subframe is referred to as an uplink reference signal subframe. For a UE in the cell, the network side device also needs to allocate a subframe for sending the uplink reference signal to the UE, that is, select a partial subframe from the subframe set as a sub-frame for transmitting the uplink reference signal by the UE. frame.
可选地,该UE发送上行参考信号的子帧可以根据该UE发送上行参考信号的周期以及该UE发送上行参考信号的子帧起始位置确定。该UE根据该子帧起始位置可以确定从哪个子帧开始发送上行参考信号,而根据该可以确定每隔多少子帧选取一个子帧发送上行参考信号。Optionally, the subframe in which the UE sends the uplink reference signal may be according to the period in which the UE sends the uplink reference signal. And determining, by the UE, a subframe start position for transmitting the uplink reference signal. The UE may determine, according to the starting position of the subframe, from which subframe the uplink reference signal is sent, according to the It can be determined how many subframes are selected to send an uplink reference signal.
其中,该UE发送上行参考信号的周期为该UE所在小区发送上行参考信号的周期的整数倍,也即是,其中t为正整数。则该UE发送上行参考信号的周期可以通过以下两种方式进行配置:The period in which the UE sends the uplink reference signal An integer multiple of the period for transmitting the uplink reference signal for the cell where the UE is located, that is, Where t is a positive integer. Then, the UE sends an uplink reference signal period. It can be configured in two ways:
在第一种实现方式中,该网络侧设备可以向该UE发送配置参数来指示该UE发送上行参考信号的周期,其中,该配置参数的大小可以为2bit-3bit。例如,当为5个子帧长度时,该网络侧设备可以向该UE发送配置参数,配置为10个子帧长度。In the first implementation manner, the network side device may send the UE to the UE. Setting a parameter to indicate a period in which the UE sends an uplink reference signal, where The configuration parameters can be 2bit-3bit. For example, when The network side device may send to the UE when the length is 5 subframes. Configuration parameters, configuration It is 10 subframe lengths.
在第二种实现方式中,该网络侧设备可以向该UE发送t配置参数来指示为的t倍。例如,若t配置参数为00,则表示为该UE可以在每个上行参考信号子帧上发送上行参考信号;若t配置参数为01,则表示等于该UE可以每隔
一个上行参考信号子帧选取一个上行参考信号子帧来发送上行参考信号。In a second implementation manner, the network side device may send a t configuration parameter to the UE to indicate for t times. For example, if the t configuration parameter is 00, it means for The UE may send an uplink reference signal on each uplink reference signal subframe; if the t configuration parameter is 01, it indicates equal The UE may select an uplink reference signal subframe for every other uplink reference signal subframe to transmit an uplink reference signal.
本发明实施例中,该UE可以通过以下两种方式确定该UE发送上行参考信号的子帧起始位置:In this embodiment of the present invention, the UE may determine the start position of the subframe in which the UE sends the uplink reference signal in the following two manners:
在第一种实现方式中,该UE在子帧n上接收到UE-specific配置信息后,可以将随后的第一个上行参考信号子帧确定为该UE发送上行参考信号的子帧起始位置,或者,将与该子帧n间隔k子帧后的第一个上行参考信号子帧确定为该UE发送上行参考信号的子帧起始位置,k为正整数。其中,该子帧起始位置的确定规则可以通过网络协议预先定义,本发明实施例对此不做限定。In the first implementation manner, after receiving the UE-specific configuration information on the subframe n, the UE may determine the subsequent first uplink reference signal subframe as the subframe start position of the UE sending the uplink reference signal. Or, the first uplink reference signal subframe after the subframe is separated from the subframe n is determined as the subframe start position of the uplink signal transmitted by the UE, where k is a positive integer. The determining rule of the starting position of the subframe may be predefined by a network protocol, which is not limited by the embodiment of the present invention.
在第二种实现方式中,该UE-specific配置信息可以包括该UE发送上行参考信号的子帧起始位置。例如,该网络侧设备可以向该UE发送子帧起始位置配置参数,若该子帧起始位置配置参数为00,则表示该UE可以将接收到UE-specific配置信息后的第一个上行参考信号子帧确定为该UE发送上行参考信号的子帧起始位置;若该子帧起始位置配置参数为01,则表示该UE可以将接收到UE-specific配置信息后的第二个上行参考信号子帧确定为该UE发送上行参考信号的子帧起始位置。In a second implementation manner, the UE-specific configuration information may include a subframe start position at which the UE sends an uplink reference signal. For example, the network side device may send a subframe start location configuration parameter to the UE, and if the subframe start location configuration parameter is 00, it indicates that the UE may receive the first uplink after the UE-specific configuration information. The reference signal subframe is determined as a subframe start position of the uplink reference signal sent by the UE; if the subframe start location configuration parameter is 01, the UE may receive the second uplink after the UE-specific configuration information is received. The reference signal subframe determines a subframe start position at which the UE transmits an uplink reference signal.
进一步地,针对该UE发送的上行参考信号所在的子帧,该网络侧设备还可以对该子帧内的符号进行配置,也即是,该网络侧设备可以配置该UE可以发送上行参考信号的符号。例如,该网络侧设备可以配置该UE在该子帧内的所有符号上发送上行参考信号,或者,配置该UE在该子帧内的部分符号上发送上行参考信号,本发明实施例对此不做限定。Further, for the subframe in which the uplink reference signal sent by the UE is located, the network side device may further configure the symbol in the subframe, that is, the network side device may configure the UE to send the uplink reference signal. symbol. For example, the network side device may configure the UE to send an uplink reference signal on all symbols in the subframe, or configure the UE to send an uplink reference signal on a part of the symbols in the subframe. Make a limit.
其中,该UE发送上行参考信号的符号可以通过该UE发送上行参考信号的符号相对于第二指定符号的偏移量来确定,该第二指定符号可以为该UE发送的上行参考信号所在子帧中的0号符号、1号符号等,本发明实施例对此不做限定。例如,当该第二指定符号为0号符号,该UE发送上行参考信号的符号相对于第二指定符号的偏移量为3,则可以确定该第UE可以在上行参考信号子帧的3号符号上发送上行参考信号。The symbol of the uplink reference signal sent by the UE may be the offset of the symbol of the uplink reference signal sent by the UE with respect to the second specified symbol. It is determined that the second designated symbol may be the No. 0 symbol, the No. 1 symbol, and the like in the subframe in which the uplink reference signal is sent by the UE, which is not limited in this embodiment of the present invention. For example, when the second designated symbol is the 0th symbol, the UE transmits the offset of the symbol of the uplink reference signal with respect to the second specified symbol. If it is 3, it can be determined that the first UE can send the uplink reference signal on the symbol No. 3 of the uplink reference signal subframe.
需要说明的是,本发明实施例仅是以该网络侧设备向一个指定UE发送上行参考信号配置信息进行说明,而实际应用中,该网络侧设备可以向该小区内的所有UE发送上行参考信号配置信息,使得每个UE均可以根据该网络侧设备下发的上行参考信号配置信息发送上行参考信号。而且,该网络侧设备向不同的UE发送的上行参考信号配置信息可以相同,也可以不同,本发明实施例对此不做限定。It should be noted that, in the embodiment of the present invention, only the network side device sends the uplink reference signal configuration information to a designated UE, and in actual application, the network side device may send an uplink reference signal to all UEs in the cell. The configuration information is such that each UE can send an uplink reference signal according to the uplink reference signal configuration information sent by the network side device. Moreover, the configuration information of the uplink reference signals sent by the network side device to different UEs may be the same or different, which is not limited in this embodiment of the present invention.
例如,由于本发明实施例中的上行参考信号子帧中的所有符号均可以用于发送上行参考信号,则该网络侧设备可以向UE1和UE2分别发送不同的上行参考信号配置信息,以指示该UE1和该UE2在相同子帧内的不同符号上发送上行参考信号。如,该网络侧设备可以配置UE1在该子帧内的0号符号上发送上行参考信号,并配置该UE2在该子帧内的1号符号上发送上行参考信号。如此,该网络侧设备可以配置不同的UE在同一子帧内的不同的符号上分别发送上行参考信号,实现了在上行参考信号子帧内每个符号上的时分复用,从而可以支持大量UE发送上行参考信号。For example, since all the symbols in the uplink reference signal subframe in the embodiment of the present invention can be used to send the uplink reference signal, the network side device can separately send different uplink reference signal configuration information to the UE1 and the UE2 to indicate the UE1 and the UE2 transmit uplink reference signals on different symbols within the same subframe. For example, the network side device may configure the UE1 to send an uplink reference signal on the No. 0 symbol in the subframe, and configure the UE2 to send an uplink reference signal on the No. 1 symbol in the subframe. In this way, the network side device can configure different UEs to respectively send uplink reference signals on different symbols in the same subframe, and implement time division multiplexing on each symbol in the uplink reference signal subframe, thereby supporting a large number of UEs. Send an upstream reference signal.
进一步地,该网络侧设备还可以向该UE发送上行参考信号的序列索引(u,v)及循环移位α,则该UE即可根据该序列索引(u,v)及循环移位α生成上行参考信号序列。其中,该上行参考序列的配置和生成过程可以参考LTE系统中上行解调参考信号序列的配置和生成过程,本发明实施例对此不再赘述。例如,该上行参考信号序列配置和生成过程可以参考标准3GPP
TS 36.211V13.0.0(2015-12)第5.5.3节,本发明实施例对此不做限定。另外,该网络侧设备向UE配置上行参考信号配置信息的过程还可以参考标准3GPP TS 36.213 V13.0.0(2015-12)第8.2节,本发明实施例对此也不做限定。Further, the network side device may further send a sequence index (u, v) of the uplink reference signal and a cyclic shift α to the UE, and the UE may generate the sequence index (u, v) and the cyclic shift α. Uplink reference signal sequence. For the configuration and the generation process of the uplink reference sequence, reference may be made to the configuration and the generation process of the uplink demodulation reference signal sequence in the LTE system, which is not repeatedly described in this embodiment of the present invention. For example, the uplink reference signal sequence configuration and generation process can refer to standard 3GPP.
This is not limited by the embodiment of the present invention, which is described in Section 5.5.3 of TS 36.211 V13.0.0 (2015-12). In addition, the process of the network side device configuring the uplink reference signal configuration information to the UE may also refer to the standard 3GPP TS 36.213 V13.0.0 (2015-12) section 8.2, which is not limited in this embodiment of the present invention.
进一步地,该网络侧设备还可以向该UE发送上行参考信号在频域上的频域起始位置f0及占用的带宽,则该UE即可根据该频域起始位置f0及占用的带宽确定发送的上行参考信号的频域位置。Further, the network side device may further send, to the UE, a frequency domain starting position f 0 and an occupied bandwidth of the uplink reference signal in the frequency domain, and the UE may be based on the frequency domain starting position f 0 and occupied. The bandwidth determines the frequency domain location of the transmitted uplink reference signal.
可选地,该网络侧设备可以配置该UE发送的上行参考信号在频域上占用的带宽为1个资源块-3个资源块,且在占用的每个资源块上占用连续的子载波。例如,该UE发送的上行参考信号可以在频域上占用1个资源块、2个资源块或3个资源块,本发明实施例对此不做限定。Optionally, the network side device may configure that the uplink reference signal sent by the UE occupies 1 resource block-3 resource blocks in the frequency domain, and occupies consecutive subcarriers on each occupied resource block. For example, the uplink reference signal sent by the UE may occupy one resource block, two resource blocks, or three resource blocks in the frequency domain, which is not limited in this embodiment of the present invention.
需要说明的是,本发明实施例仅是以该UE根据网络侧设备发送的上行参考信号配置信息发送上行参考信号为例,而实际应用中,该UE还可以无需接收网络侧设备发送的上行参考信号配置信息即可直接向网络侧设备发送上行参考信号,例如,该UE可以根据预先定义的标准,直接向网络侧设备发送上行参考信号,本发明实施例对此不做限定。It should be noted that the embodiment of the present invention is only an example in which the UE sends an uplink reference signal according to the uplink reference signal configuration information sent by the network side device, and in actual application, the UE may not need to receive the uplink reference sent by the network side device. The signal configuration information can directly send the uplink reference signal to the network side device. For example, the UE can directly send the uplink reference signal to the network side device according to a predefined standard, which is not limited in this embodiment of the present invention.
步骤602:该UE基于网络侧设备配置的上行参考信号配置信息,向该网络侧设备发送上行参考信号。Step 602: The UE sends an uplink reference signal to the network side device according to the uplink reference signal configuration information configured by the network side device.
本发明实施例中,该UE可以接收该网络侧设备发送的上行参考信号配置信息,并存储该上行参考信号配置信息,之后,即可基于该网络侧设备配置的上行参考信号配置信息,向该网络侧设备发送上行参考信号。In the embodiment of the present invention, the UE may receive the uplink reference signal configuration information sent by the network side device, and store the uplink reference signal configuration information, and then, according to the uplink reference signal configuration information configured by the network side device, The network side device sends an uplink reference signal.
可选地,该UE可以在处于ECO态时向该网络侧设备发送该上行参考信号,而在处于Active态时向该网络侧设备发送SRS。Optionally, the UE may send the uplink reference signal to the network side device when in the ECO state, and send the SRS to the network side device when in the Active state.
其中,当UE处于ECO态时,该UE与网络侧设备一直保持RRC连接,网络侧设备会为该UE分配唯一的UE ID,但是该UE仅支持少量数据传输,也即是,该UE将仅支持传输小于预设字节的数据包。其中,该预设字节可以为20byte、25byte、30byte等,本发明实施例对此不作限定。例如,ECO态UE可以仅支持传输小于20byte的数据包,而当有大于20byte的数据包需要传输时,该UE将会从ECO态切换至Active态,再对该数据包进行传输。When the UE is in the ECO state, the UE maintains an RRC connection with the network side device, and the network side device allocates a unique UE ID to the UE, but the UE only supports a small amount of data transmission, that is, the UE will only Supports the transmission of packets smaller than the preset byte. The preset byte may be 20 bytes, 25 bytes, 30 bytes, etc., which is not limited in this embodiment of the present invention. For example, the ECO state UE can only support transmitting data packets smaller than 20 bytes, and when there are data packets larger than 20 bytes that need to be transmitted, the UE will switch from the ECO state to the Active state, and then transmit the data packet.
另外,ECO态的UE还可以包括以下特点:In addition, the UE in the ECO state can also include the following features:
ECO态的UE可以支持上行免授权(UL grant-free)传输,也即是,该UE可以基于竞争机制在上行共享信道资源上传输数据,而无需网络侧设备为该UE分配该上行共享信道资源;ECO态的UE无需检测控制信道;网络侧设备无需根据该UE发送的上行信号进行信道估计;ECO态的UE仅支持少量的连接管理,也即是,由于ECO态的UE仅支持少量数据传输,则该UE无需对该UE与该网络侧设备之间的信道进行频繁监测与管理,即可保证该UE正常的数据传输,因此,ECO态的UE可以保持与网络侧设备之间较少地信令交互,从而ECO态的UE比Active态的UE耗电少;另外,ECO态的UE还可以周期性地向网络侧设备发送上行参考信号,以便网络侧设备对该UE进行跟踪。The UE in the ECO state can support the uplink grant-free (UL grant-free) transmission, that is, the UE can transmit data on the uplink shared channel resource based on the contention mechanism, without the network side device allocate the uplink shared channel resource for the UE. The UE in the ECO state does not need to detect the control channel; the network side device does not need to perform channel estimation according to the uplink signal sent by the UE; the UE in the ECO state only supports a small number of connection management, that is, the UE in the ECO state only supports a small amount of data transmission. The UE does not need to frequently monitor and manage the channel between the UE and the network side device to ensure normal data transmission of the UE. Therefore, the UE in the ECO state can maintain less communication with the network side device. The signaling interaction is such that the UE in the ECO state consumes less power than the UE in the active state. In addition, the UE in the ECO state can also periodically send an uplink reference signal to the network side device, so that the network side device can track the UE.
可选地,为了便于该UE进行状态转换,该UE在第一指定符号上发送的上行参考信号可以用于表示该UE发起状态转换请求,该状态转换请求表示该UE请求该网络侧设备将该UE从当前所处的第一状态切换至第二状态,该第一指定符号为该至少一个符号所在子帧内的N个符号,N为正整数。其中,该N个符号可以为该至少一个符号所在子帧内连续的N个符
号,也可以为间隔的N个符号,本发明实施例对此不做限定。Optionally, in order to facilitate the state transition of the UE, the uplink reference signal sent by the UE on the first designated symbol may be used to indicate that the UE initiates a state transition request, where the state transition request indicates that the UE requests the network side device to The UE switches from the first state in which it is currently located to the second state, where the first designated symbol is N symbols in a subframe in which the at least one symbol is located, and N is a positive integer. The N symbols may be consecutive N characters in the subframe where the at least one symbol is located.
The number is not limited to the N symbols in the embodiment of the present invention.
需要说明的是,本发明实施例仅关注该状态转换请求的功能,也即是,该状态转换请求表示请求网络侧设备将该UE从当前所处的第一状态切换至与该第一状态不同的第二状态,而对该第一状态和第二状态的具体状态不做限定。例如,实际应用中,该第一状态可以为ECO态,该第二状态可以为Active态;或者,该第一状态为Active态,该第二状态为ECO态;或者,该第一状态为connected态,该第二状态为Idle态;或者,该第一状态为Idle态,该第二状态为connected态等。It should be noted that the embodiment of the present invention only pays attention to the function of the state transition request, that is, the state transition request indicates that the network side device is requested to switch the UE from the current first state to the first state. The second state is not limited to the specific states of the first state and the second state. For example, in an actual application, the first state may be an ECO state, and the second state may be an Active state; or the first state is an Active state, and the second state is an ECO state; or the first state is connected The second state is an Idle state; or the first state is an Idle state, and the second state is a connected state or the like.
其中,以该第一状态为ECO态,该第二状态为Active态为例,当该UE处于ECO态时,若有大于预设字节的数据包需要传输,则该UE即可在发送的上行参考信号所在子帧的第一指定符号上也发送上行参考信号,以请求该网络侧设备将该UE从ECO态切换至Active态。另外,当该UE无需进行状态转换时,该UE发送的上行参考信号将不占用所在子帧的第一指定符号。The first state is the ECO state, and the second state is the Active state. When the UE is in the ECO state, if a packet larger than the preset byte needs to be transmitted, the UE can be sent. An uplink reference signal is also sent on the first designated symbol of the subframe where the uplink reference signal is located, to request the network side device to switch the UE from the ECO state to the active state. In addition, when the UE does not need to perform state transition, the uplink reference signal sent by the UE will not occupy the first designated symbol of the subframe in which it is located.
其中,该第一指定符号的符号索引可以由网络侧设备配置,以指示该UE的第一指定符号为该至少一个符号所在子帧内的哪个符号。相应地,在该UE在该第一指定符号上发送上行参考信号之前,该网络侧设备可以向该UE配置该第一指定符号的符号索引,则该UE即可将该第一指定符号的符号索引对应的符号确定为该第一指定符号。The symbol index of the first designated symbol may be configured by the network side device to indicate which symbol in the subframe in which the at least one symbol is located. Correspondingly, before the UE sends the uplink reference signal on the first designated symbol, the network side device may configure the symbol index of the first designated symbol to the UE, and the UE may use the symbol of the first designated symbol. The symbol corresponding to the index is determined as the first designated symbol.
其中,该网络侧设备可以通过高层信令向该UE配置该第一指定符号的符号索引,例如,该网络侧设备可以通过RRC信令向该UE配置该第一指定符号的符号索引;或者,该网络侧设备也可以通过系统广播消息向该UE配置该第一指定符号的符号索引,例如,该网络侧设备可以通过SIB消息或MIB消息向该UE配置该第一指定符号的符号索引,本发明实施例对该第一指定符号的符号索引的配置方式不做限定。The network side device may configure, by using the high layer signaling, the symbol index of the first designated symbol to the UE, for example, the network side device may configure the symbol index of the first designated symbol to the UE by using RRC signaling; or The network side device may also configure a symbol index of the first designated symbol to the UE by using a system broadcast message. For example, the network side device may configure a symbol index of the first designated symbol to the UE by using an SIB message or an MIB message. The manner of configuring the symbol index of the first designated symbol is not limited in the embodiment of the invention.
可选地,该第一指定符号上的上行参考信号可以通过预设竞争机制发送,也即是,当该UE需要进行状态转换时,该UE可以通过预设竞争机制在该第一指定符号上发送上行参考信号,因此,无需网络侧设备进行调度,该UE即可在第一指定符号上发送该上行参考信号。其中,该预设竞争机制可以预先由网络侧设备进行配置。如此,当不同UE在相同上行参考信号子帧的同一第一指定符号上发送上行参考信号表示发起状态转换请求时,不同UE即可基于竞争的在该第一指定符号上发送上行参考信号。Optionally, the uplink reference signal on the first designated symbol may be sent by using a preset contention mechanism, that is, when the UE needs to perform state transition, the UE may be on the first designated symbol by using a preset contention mechanism. The uplink reference signal is sent. Therefore, the UE can transmit the uplink reference signal on the first designated symbol without scheduling by the network side device. The preset contention mechanism may be configured in advance by the network side device. In this manner, when different UEs send an uplink reference signal on the same first designated symbol of the same uplink reference signal subframe to indicate that the state transition request is initiated, different UEs may send the uplink reference signal on the first designated symbol based on contention.
需要说明的是,本发明实施例仅是以该UE在第一指定符号上发送的上行参考信号表示向网络侧设备发起状态切换请求为例进行说明,而实际应用中,该UE还可以在该第一指定符号上发送除该上行参考信号之外的其他信号,例如,在该第一指定符号上发送类似上行调度请求(Scheduling Request,SR)的扩频序列来表示向网络侧设备发送状态切换请求,本发明实施例对此不做限定。It should be noted that, in the embodiment of the present invention, only the uplink reference signal sent by the UE on the first designated symbol indicates that the state switching request is initiated to the network side device, and in actual application, the UE may also be in the application. Sending a signal other than the uplink reference signal on the first designated symbol, for example, transmitting a spreading sequence similar to an uplink scheduling request (SR) on the first designated symbol to indicate that the state switching is sent to the network side device. The request is not limited in this embodiment of the present invention.
可选地,由于当前技术中SRS仅允许在所在子帧的最后一个符号上进行传输,为了避免该UE在某一子帧的最后一个符号发送的上行参考信号与其他Active态UE在该子帧的最后一个符号上发送的SRS造成冲突,该UE发送的上行参考信号可以不占用该至少一个符号所在子帧的最后一个符号。也即是,该网络侧设备可以配置上行参考信号子帧的最后一个符号预留,以保证所在小区的所有UE均不会在上行参考信号子帧的最后一个符号上发送上行参考信号。Optionally, since the SRS in the current technology only allows transmission on the last symbol of the subframe in which the subframe is located, in order to avoid the uplink reference signal sent by the UE in the last symbol of a certain subframe and other Active UEs in the subframe. The SRS sent on the last symbol causes a collision, and the uplink reference signal sent by the UE may not occupy the last symbol of the subframe in which the at least one symbol is located. That is, the network side device may configure the last symbol reservation of the uplink reference signal subframe to ensure that all UEs in the cell do not send the uplink reference signal on the last symbol of the uplink reference signal subframe.
相应地,该第一指定符号可以为该至少一个符号所在子帧内除最后一个符号之外的N个
符号。Correspondingly, the first designated symbol may be N except the last symbol in the subframe where the at least one symbol is located
symbol.
例如,参见图7,当该UE处于ECO态时,可以在某一个上行参考信号子帧内发送上行参考信号。其中,该上行参考信号子帧包括14个符号:0号符号-13号符号。以0号符号为第一指定符号为例,则该0号符号上发送的上行参考信号即可表示向网络侧设备发起状态转换请求,请求网络侧设备将该UE从ECO态切换至Active态。且,该子帧的13号符号预留,该UE发送的上行参考信号信号不会占用该13号符号。而1号符号-12号符号均可用于发送上行参考信号信号,该UE可以根据网络侧设备发送的上行参考信号配置信息确定在1号符号-12号符号中的所有符号或部分符号上发送上行参考信号信号。另外,该UE发送的上行参考信号信号在频域上可以占用1RB、2RB或者3RB,且所占用RB中的子载波为连续的。For example, referring to FIG. 7, when the UE is in the ECO state, the uplink reference signal may be sent in a certain uplink reference signal subframe. The uplink reference signal subframe includes 14 symbols: a 0-symbol and a 13-symbol. Taking the No. 0 symbol as the first designated symbol as an example, the uplink reference signal sent on the No. 0 symbol can indicate that a state transition request is initiated to the network side device, and the network side device is requested to switch the UE from the ECO state to the Active state. Moreover, the 13th symbol of the subframe is reserved, and the uplink reference signal sent by the UE does not occupy the 13th symbol. The No. 1 symbol No. 12 symbol can be used to send an uplink reference signal, and the UE can determine, according to the uplink reference signal configuration information sent by the network side device, that all symbols or partial symbols in the No. 1 symbol No. 12 symbol are sent uplink. Reference signal signal. In addition, the uplink reference signal transmitted by the UE may occupy 1 RB, 2 RB, or 3 RB in the frequency domain, and the subcarriers in the occupied RB are consecutive.
需要说明的是,本发明实施例仅是以该UE发送的上行参考信号以子帧为单位进行发送为例,而当该UE发送的上行参考信号以时隙为例进行发送时,该时隙可以为第一时隙或者第二时隙,该第一时隙是指所在子帧的前半个子帧,该第二时隙是指所在子帧的后半个子帧。It should be noted that, in the embodiment of the present invention, only the uplink reference signal sent by the UE is sent in units of subframes, and when the uplink reference signal sent by the UE is sent by using a time slot as an example, the time slot is used. It may be a first time slot or a second time slot, where the first time slot refers to the first half of the subframe in which the subframe is located, and the second time slot refers to the second half of the subframe in which the subframe is located.
在第一种实现方式中,该UE可以在时域上以第二时隙为单位发送上行参考信号。也即是,该UE发送的上行参考信号在时域上占用至少一个符号,该至少一个符号所在第二时隙的上行符号均用于发送上行参考信号,该UE发送的上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。In the first implementation manner, the UE may send the uplink reference signal in units of the second time slot in the time domain. That is, the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol of the second time slot in which the at least one symbol is located is used to send the uplink reference signal, and the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
另外,该上行参考信号所在的第二时隙还可以包括第一指定符号,该UE在第一指定符号上发送的上行参考信号用于表示该UE发起状态转换请求。其中,该第一指定符号为该第二时隙中的N个符号,N为正整数。而且,该UE发送的上行参考信号还可以不占用该第二时隙的最后一个符号,则该第一指定符号即为该第二时隙中除最后一个符号之外的任意M个符号,M为大于或等于1的正整数。In addition, the second time slot in which the uplink reference signal is located may further include a first designated symbol, and the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request. The first designated symbol is N symbols in the second slot, and N is a positive integer. Moreover, the uplink reference signal sent by the UE may not occupy the last symbol of the second time slot, and the first designated symbol is any M symbols except the last symbol in the second time slot, Is a positive integer greater than or equal to 1.
例如,参见图8,该UE发送上行参考信号的第二时隙位于该上行参考信号所在子帧的后半个子帧,则该第二时隙包括7个符号:7号符号-13号符号。以7号符号为第一指定符号为例,则该7号符号上发送的上行参考信号即可表示向网络侧设备发起状态转换请求,请求网络侧设备将该UE从ECO态切换至Active态。且,该子帧的13号符号预留,也即是,该UE发送的上行参考信号信号不会占用该13号符号。而8号符号-12号符号均可用于发送上行参考信号信号,该UE可以根据网络侧设备发送的上行参考信号配置信息确定在8号符号-12号符号中的所有符号上或部分符号上发送上行参考信号信号。另外,该UE发送的上行参考信号信号在频域上可以占用1RB、2RB或者3RB,且所占用RB中的子载波为连续的。For example, referring to FIG. 8, the second time slot in which the UE sends the uplink reference signal is located in the second half of the subframe in which the uplink reference signal is located, and the second time slot includes 7 symbols: the 7th symbol and the 13th symbol. Taking the 7th symbol as the first designated symbol as an example, the uplink reference signal sent on the 7th symbol can indicate that a state transition request is initiated to the network side device, and the network side device is requested to switch the UE from the ECO state to the active state. Moreover, the 13th symbol of the subframe is reserved, that is, the uplink reference signal sent by the UE does not occupy the 13th symbol. The 8th symbol and the 12th symbol can be used to transmit the uplink reference signal, and the UE can determine to send all symbols or part of the symbols in the 8th symbol and the 12th symbol according to the uplink reference signal configuration information sent by the network side device. Uplink reference signal. In addition, the uplink reference signal transmitted by the UE may occupy 1 RB, 2 RB, or 3 RB in the frequency domain, and the subcarriers in the occupied RB are consecutive.
例如,参见图9,在图9所示的该UE发送的上行参考信号信号所在的一个RB中,该上行参考信号信号占据连续的载波。For example, referring to FIG. 9, in one RB where the uplink reference signal transmitted by the UE shown in FIG. 9 is located, the uplink reference signal signal occupies a continuous carrier.
在第二种实现方式中,该UE可以在时域上以第一时隙为单位发送上行参考信号。也即是,该UE发送的上行参考信号在时域上占用至少一个符号,该至少一个符号所在第一时隙的上行符号均用于发送上行参考信号,该UE发送的上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。In the second implementation manner, the UE may send the uplink reference signal in units of the first time slot in the time domain. That is, the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol of the first time slot in which the at least one symbol is located is used to send the uplink reference signal, and the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, and the subcarriers in the at least one resource block are consecutive.
另外,该上行参考信号所在第一时隙还可以包括第一指定符号,该UE在第一指定符号上发送的上行参考信号用于表示该UE发起状态转换请求,其中,该第一指定符号为该第二时隙中的N个符号,N为正整数。其中,与上述第一种实现方式不同的是,由于该第一时隙的符号不包括所在子帧的最后一个符号,则该第一时隙的全部符号上发送的上行参考信号均
不会与其他Active态UE发送的SRS发生冲突,因此,在第二种实现方式中,无需将该第一时隙的最后一个符号预留,也即是,该上行参考信号可以占用该第一时隙内的全部符号。相应地,该第一指定符号可以为该第一时隙中的任意T个符号,T为大于或等于1的正整数。In addition, the first time slot in which the uplink reference signal is located may further include a first designated symbol, and the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the first designated symbol is N symbols in the second slot, N is a positive integer. The difference from the first implementation manner is that, since the symbol of the first time slot does not include the last symbol of the subframe, the uplink reference signal sent on all symbols of the first time slot is
It does not conflict with the SRS sent by other Active UEs. Therefore, in the second implementation manner, the last symbol of the first time slot is not required to be reserved, that is, the uplink reference signal can occupy the first All symbols within the time slot. Correspondingly, the first designated symbol may be any T symbols in the first time slot, and T is a positive integer greater than or equal to 1.
例如,参见图10,该UE发送上行参考信号的第一时隙位于该上行参考信号所在子帧的前半个子帧,则该第一时隙包括7个符号:0号符号-6号符号。以0号符号为第一指定符号为例,则该0号符号上发送的上行参考信号即可表示向网络侧设备发起状态转换请求,请求网络侧设备将该UE从ECO态切换至Active态。而1号符号-6号符号均可用于发送上行参考信号信号,该UE可以根据网络侧设备发送的上行参考信号配置信息确定在1号符号-6号符号中的所有符号上或部分符号上发送上行参考信号信号。另外,该UE发送的上行参考信号信号在频域上可以占用1RB、2RB或者3RB,且所占用RB中的子载波为连续的。For example, referring to FIG. 10, the first time slot in which the UE sends the uplink reference signal is located in the first half of the subframe in which the uplink reference signal is located, and the first time slot includes 7 symbols: the 0th symbol and the 6th symbol. Taking the No. 0 symbol as the first designated symbol as an example, the uplink reference signal sent on the No. 0 symbol can indicate that a state transition request is initiated to the network side device, and the network side device is requested to switch the UE from the ECO state to the Active state. The No. 1 symbol and the No. 6 symbol can be used to transmit the uplink reference signal, and the UE can determine to send on all symbols or part of the symbols in the No. 1 symbol-6 symbol according to the uplink reference signal configuration information sent by the network side device. Uplink reference signal. In addition, the uplink reference signal transmitted by the UE may occupy 1 RB, 2 RB, or 3 RB in the frequency domain, and the subcarriers in the occupied RB are consecutive.
可选地,该上行参考信号配置信息还可以包括该UE发送的上行参考信号在时域上的单位。其中,该单位包括子帧或者时隙,用于指示该UE是在一个子帧内发送上行参考信号,还是在一个时隙内发送上行参考信号。进一步地,该单位还可以包括第一时隙或者第二时隙,用于指示该UE是在第一时隙内发送上行参考信号,还是在第二时隙上发送上行参考信号。实际应用中,该网络侧设备可以向该UE发送一个单位参数,用于指示该UE发送的上行参考信号在时域上的单位。Optionally, the uplink reference signal configuration information may further include a unit in the time domain of the uplink reference signal sent by the UE. The unit includes a subframe or a time slot, and is used to indicate whether the UE sends an uplink reference signal in one subframe or an uplink reference signal in one time slot. Further, the unit may further include a first time slot or a second time slot, configured to indicate whether the UE sends an uplink reference signal in the first time slot or an uplink reference signal in the second time slot. In an actual application, the network side device may send a unit parameter to the UE, which is used to indicate the unit of the uplink reference signal sent by the UE in the time domain.
步骤603:该网络侧设备根据该UE发送的上行参考信号,获取该UE的位置并估计该UE的TA。Step 603: The network side device acquires the location of the UE and estimates the TA of the UE according to the uplink reference signal sent by the UE.
该网络侧设备接收到该UE发送的上行参考信号配置信息后,即可根据该上行参考信号配置信息获取该UE的位置并估计该UE的TA。进一步地,在如图2所示的5G系统中,该UE还可以根据该UE的位置为该UE选择最优的TP集合为该UE服务,并更新该网络侧设备存储的TP-UE关系表;或者,该UE还可以根据估计的TA对该UE的TA进行调整。After receiving the uplink reference signal configuration information sent by the UE, the network side device may acquire the location of the UE according to the uplink reference signal configuration information and estimate the TA of the UE. Further, in the 5G system shown in FIG. 2, the UE may further select an optimal TP set for the UE to serve the UE according to the location of the UE, and update the TP-UE relationship table stored by the network side device. Or, the UE may further adjust the TA of the UE according to the estimated TA.
可选地,该网络侧设备还可以在第一指定符号上检测该UE发送的上行参考信号,并根据检测结果确定是否将该UE从当前所处的第一状态切换至第二状态。若该网络侧设备在第一指定符号上检测到该UE发送的上行参考信号,表示该UE向该网络侧设备发起了状态装换请求,则该网络侧设备可以将该UE从当前所处的第一状态切换至第二状态;若该网络侧设备未在该第一指定符号上检测到该UE发送的上行参考信号,表示该UE未发起状态转换请求,则该网络侧设备可以不对该UE的状态进行装换,也即是,不将该UE从当前所处的第一状态切换至第二状态,该UE将保持当前的第一状态。Optionally, the network side device may further detect an uplink reference signal sent by the UE on the first designated symbol, and determine, according to the detection result, whether to switch the UE from the first state to the second state. If the network side device detects the uplink reference signal sent by the UE on the first designated symbol, indicating that the UE initiates a state change request to the network side device, the network side device may obtain the UE from the current location. The first state is switched to the second state; if the network side device does not detect the uplink reference signal sent by the UE on the first designated symbol, indicating that the UE does not initiate a state transition request, the network side device may not The state is replaced, that is, the UE is not switched from the current first state to the second state, and the UE will maintain the current first state.
例如,当该网络侧设备接收到ECO态UE发送的上行参考信号,且在该UE发送的上行参考信号所在子帧的第一指定符号上也检测到了上行参考信号,则该网络侧设备即可将该UE从ECO态切换至Active态。For example, when the network side device receives the uplink reference signal sent by the UE in the ECO state, and the uplink reference signal is also detected on the first designated symbol of the subframe where the uplink reference signal sent by the UE is located, the network side device can The UE is switched from the ECO state to the Active state.
现有技术中,UE可以向网络侧设备发送SRS,使得网络侧设备可以根据该SRS获取该UE的位置、该UE的TA等信息,并可以根据该SRS进行信道估计。但是,由于网络侧设备需要根据该SRS进行信道估计,则该SRS在频域上需要占用至少4RB,这对于不需要进行信道估计的ECO态的UE来说,占用的资源较多,浪费了资源。而且,当前技术中SRS在频域上占据“梳状”频谱,也即是,SRS序列是每隔一个子载波映射到频域资源上的,因此,相同的带宽下,SRS仅占据一半带宽,导致网络侧设备根据该SRS估计的TA精度不高。另外,当前技术中SRS仅允许在所在子帧的最后一个符号上进行传输,难以支持大量用户。
In the prior art, the UE may send the SRS to the network side device, so that the network side device may acquire the location of the UE, the TA of the UE, and the like according to the SRS, and perform channel estimation according to the SRS. However, since the network side device needs to perform channel estimation according to the SRS, the SRS needs to occupy at least 4 RBs in the frequency domain, which consumes more resources and wastes resources for the ECO state UE that does not need channel estimation. . Moreover, in the current technology, the SRS occupies a "comb" spectrum in the frequency domain, that is, the SRS sequence is mapped to the frequency domain resources every other subcarrier, and therefore, the SRS occupies only half of the bandwidth under the same bandwidth. The accuracy of the TA caused by the network side device according to the SRS estimation is not high. In addition, in the prior art, SRS only allows transmission on the last symbol of the subframe in which it is located, and it is difficult to support a large number of users.
另外,现有技术中,UE也可以在随机接入的过程中,在物理随机接入信道(Physical Random Access Channel,PRACH)上向网络侧设备发送随机接入前导(Preamble),使得网络侧设备根据该Preamble估计该UE与该网络侧设备之间的传输时延,从而对该UE的TA进行调整。但是,由于每个小区内有64个可用的Preamble序列,UE可以选择其中一个序列在PRACH资源上传输,因此,一个PRACH资源最多仅能支持64个UE发送Preamble,所能支持的用户量较少,难以支持大量ECO态UE。而且,PRACH在频域上占据6RB,时域上占据1-3个子帧,对于ECO态的UE来说,占用的资源也较大,也比较浪费资源。In addition, in the prior art, the UE may also send a random access preamble (Preamble) to the network side device on the physical random access channel (PRACH) in the process of random access, so that the network side device The transmission delay between the UE and the network side device is estimated according to the Preamble, so that the TA of the UE is adjusted. However, since there are 64 available Preamble sequences in each cell, the UE can select one of the sequences to transmit on the PRACH resources. Therefore, one PRACH resource can only support up to 64 UEs to send Preamble, and the number of users that can be supported is small. It is difficult to support a large number of ECO state UEs. Moreover, the PRACH occupies 6 RBs in the frequency domain and 1-3 subframes in the time domain. For the UE in the ECO state, the occupied resources are also large, and resources are wasted.
而本发明实施例中设计的上行参考信号,在频域上仅需占用至少一个资源块,例如,在频域上可以占用1RB-3RB,在时域上仅需占有一个子帧或半个子帧,占用资源较少,节省了资源。而且,该上行参考信号在该至少一个资源块中的子载波为连续的,因此,相同的带宽下,该上行参考信号可以占据全部带宽,则网络侧设备根据该上行参考信号估计的TA精度也较高。其中,该至少一个资源块中每两个子载波的子载波间隔可以为15K,本发明实施例对此不做限定。另外,该上行参考信号在时域上占用至少一个符号,该至少一个符号所在子帧内的上行符号均可用于发送上行参考信号,实现了对该上行参考信号所在子帧内的全部符号上的时分复用,增加了可支持UE的数量,从而可以支持大量UE发送该上行参考信号。The uplink reference signal designed in the embodiment of the present invention only needs to occupy at least one resource block in the frequency domain, for example, can occupy 1 RB-3 RB in the frequency domain, and only needs to occupy one subframe or half subframe in the time domain. It occupies less resources and saves resources. Moreover, the sub-carriers of the uplink reference signal in the at least one resource block are contiguous. Therefore, the uplink reference signal can occupy the entire bandwidth under the same bandwidth, and the TA accuracy estimated by the network side device according to the uplink reference signal is also Higher. The sub-carrier spacing of each of the at least one resource block may be 15K, which is not limited in this embodiment of the present invention. In addition, the uplink reference signal occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located can be used to send the uplink reference signal, and all the symbols in the subframe in which the uplink reference signal is located are implemented. Time division multiplexing increases the number of UEs that can be supported, so that a large number of UEs can be supported to transmit the uplink reference signal.
进一步地,该上行参考信号适应于ECO态的UE,网络侧设备根据该ECO态的UE发送的上行参考信号无需进行信道估计。通过本发明实施例提供的适应于ECO态UE发送的上行参考信号,网络侧设备能够在“UE-centric Non-cell”网络系统场景下完成对ECO态UE的位置跟踪、UE的TP归属跟踪等,而且可以完成对ECO态UE的TA估计,保持UE的上行同步,从而可以实现UE的永远在线。而且,ECO态UE仅需长周期性的向网络侧设备发送上行参考信号,即可实现网络侧设备对该UE的跟踪,而无需向网络侧设备频繁发送上行参考信号,因此,与现有技术相比,该UE更省电、空中接口资源开销更小。Further, the uplink reference signal is adapted to the UE in the ECO state, and the network side device does not need to perform channel estimation according to the uplink reference signal sent by the UE in the ECO state. The network side device can complete the location tracking of the ECO state UE, the TP attribution tracking of the UE, and the like in the "UE-centric Non-cell" network system scenario, which is provided by the embodiment of the present invention. And the TA estimation of the ECO state UE can be completed, and the uplink synchronization of the UE is maintained, so that the UE can always be online. Moreover, the ECO state UE only needs to send the uplink reference signal to the network side device in a long period of time, so that the network side device can track the UE, and the uplink reference signal is not frequently sent to the network side device. Therefore, the prior art is related to the prior art. In comparison, the UE is more power efficient and has less overhead on the air interface resources.
综上所述,本发明实施例提供的的方法,通过提供一种UE发送的上行参考信号,其中,该UE发送的上行参考信号在时域上占用至少一个符号,使得上行参考信号可以在至少一个符号上时分复用,且该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号,保证了上行参考信号可以进一步在所在子帧或时隙内的所有上行符号上时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,使得上行参考信号可在整个系统带宽上频分复用,从而可以支持大量UE来发送上行参考信号,适应于ECO态UE,且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。而且,该上行参考信号还承载了ECO态UE发起的状态转换请求,实现了UE从ECO到Active态的状态转换。另外,通过配置该上行参考信号不占用该至少一个符号所在子帧的最后一个符号,避免了与其他激活态UE发送的SRS之间的冲突,增强了兼容性。In summary, the method provided by the embodiment of the present invention provides an uplink reference signal that is sent by the UE, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, so that the uplink reference signal can be at least One symbol is time division multiplexed, and the uplink symbols in the subframe or time slot in which the at least one symbol is located are used to transmit the uplink reference signal, which ensures that the uplink reference signal can be further on all uplink symbols in the subframe or time slot. Time division multiplexing, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, so that the uplink reference signal can be frequency division multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal. And adapting to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources, and saves resources. Moreover, the uplink reference signal also carries a state transition request initiated by the UE in the ECO state, and implements state transition of the UE from the ECO to the Active state. In addition, by configuring the uplink reference signal to not occupy the last symbol of the subframe in which the at least one symbol is located, collisions with SRSs sent by other active UEs are avoided, and compatibility is enhanced.
上述所有可选技术方案,可以采用任意结合形成本申请的可选实施例,在此不再一一赘述。All the foregoing optional technical solutions may be used in any combination to form an optional embodiment of the present application, and details are not described herein again.
图11是本发明实施例提供的一种用户设备UE的结构示意图,参见图11,该UE包括:FIG. 11 is a schematic structural diagram of a user equipment UE according to an embodiment of the present invention. Referring to FIG. 11, the UE includes:
发送模块1101,用于向该网络侧设备发送上行参考信号;The sending module 1101 is configured to send an uplink reference signal to the network side device.
其中,该UE发送的上行参考信号在时域上占用至少一个符号,该至少一个符号所在子帧内的上行符号均用于发送上行参考信号;该UE发送的上行参考信号在频域上占用至少一
个资源块,且该至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located is used to send the uplink reference signal; the uplink reference signal sent by the UE occupies at least in the frequency domain. One
Resource blocks, and the subcarriers in the at least one resource block are consecutive.
本发明实施例提供的UE,通过向网络侧设备发送上行参考信号,其中,该UE发送的上行参考信号在时域上占用至少一个符号,使得上行参考信号可以在至少一个符号上时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,使得上行参考信号可在整个系统带宽上频分复用,从而可以支持大量UE来发送上行参考信号,适应于ECO态UE,而且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。The UE provided by the embodiment of the present invention sends an uplink reference signal to the network side device, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, so that the uplink reference signal can be time-division multiplexed on at least one symbol. The uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure the bandwidth, so that the uplink reference signal can be frequency-multiplexed and multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal, and is adapted to the ECO. The UE also occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
可选地,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。Optionally, the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
可选地,该UE在第一指定符号上发送的上行参考信号用于表示该UE发起状态转换请求,该状态转换请求表示该UE请求网络侧设备将该UE从当前所处的第一状态切换至第二状态,该第一指定符号为该至少一个符号所在子帧或时隙内的N个符号,N为正整数。Optionally, the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, where the state transition request indicates that the UE requests the network side device to switch the UE from the first state in which the UE is currently located. Up to the second state, the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
可选地,该第一指定符号的符号索引由该网络侧设备配置。Optionally, the symbol index of the first designated symbol is configured by the network side device.
具体地,该第一指定符号的符号索引由该网络侧设备通过系统广播消息或者高层信令配置,其中,该系统广播消息可以为SIB消息、MIB消息等,该高层信令可以为RRC信令。Specifically, the symbol index of the first designated symbol is configured by the network side device by using a system broadcast message or a high layer signaling, where the system broadcast message may be an SIB message, an MIB message, or the like, and the high layer signaling may be RRC signaling. .
可选地,该第一指定符号上的上行参考信号通过预设竞争机制发送。Optionally, the uplink reference signal on the first designated symbol is sent by using a preset contention mechanism.
可选地,该第一状态为生态-保护-优化ECO态,该第二状态为激活态。Optionally, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
可选地,该UE发送地上行参考信号不占用该至少一个符号所在子帧的的最后一个符号。Optionally, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe where the at least one symbol is located.
可选地,该UE还包括:Optionally, the UE further includes:
接收模块,用于接收该网络侧设备发送的上行参考信号配置信息;该发送模块还用于根据该上行参考信号配置信息发送该上行参考信号;其中,该上行参考信号配置信息包括以下信息中的至少一项:a receiving module, configured to receive uplink reference signal configuration information sent by the network side device, where the sending module is further configured to send the uplink reference signal according to the uplink reference signal configuration information, where the uplink reference signal configuration information includes the following information At least one item:
该UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
该UE发送上行参考信号的周期信息和该UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the periodic information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
该UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
该UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
上述所有可选技术方案,可以采用任意结合形成本申请的可选实施例,在此不再一一赘述。All the foregoing optional technical solutions may be used in any combination to form an optional embodiment of the present application, and details are not described herein again.
图12是本发明实施例提供的一种网络侧设备的结构示意图,参见图12,该网络侧设备包括:FIG. 12 is a schematic structural diagram of a network side device according to an embodiment of the present invention. Referring to FIG. 12, the network side device includes:
接收模块1201,用于接收用户设备UE发送的上行参考信号;The receiving module 1201 is configured to receive an uplink reference signal sent by the user equipment UE.
其中,该UE发送的上行参考信号在时域上占用至少一个符号;该UE发送的上行参考信号在频域上占用至少一个资源块,且该至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive.
本发明实施例提供的网络侧设备,通过接收用户设备UE发送的上行参考信号,其中,该UE发送的上行参考信号在时域上占用至少一个符号,使得上行参考信号可以在至少一个符号上时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,使得上行参考信号可在整个系统带宽上频分复用,从而可以支持大量UE来发送上行参考信号,
适应于ECO态UE,而且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。The network side device provided by the embodiment of the present invention receives the uplink reference signal sent by the user equipment UE, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, so that the uplink reference signal can be scored on at least one symbol. Multiplexing, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure the bandwidth, so that the uplink reference signal can be frequency-multiplexed and multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal.
It is adapted to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupies less resources and saves resources.
可选地,该至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。Optionally, the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send the uplink reference signal.
可选地,该网络侧设备还包括:Optionally, the network side device further includes:
切换模块,用于在第一指定符号上检测该UE发送的上行参考信号,并根据检测结果确定是否将该UE从当前所处的第一状态切换至第二状态,其中,该UE在该第一指定符号上发送的上行参考信号用于表示该UE发起状态转换请求,该状态转换请求表示该UE请求该网络侧设备将该UE从所述第一状态切换至所述第二状态,该第一指定符号为该至少一个符号所在子帧或时隙内的N个符号,N为正整数。And a switching module, configured to detect, on the first designated symbol, an uplink reference signal sent by the UE, and determine, according to the detection result, whether to switch the UE from the first state to the second state, where the UE is in the first An uplink reference signal sent on a designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state to the second state, where the A designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
可选地,该网络侧设备还包括:Optionally, the network side device further includes:
配置模块,用于向该UE配置该第一指定符号的符号索引。And a configuration module, configured to configure, to the UE, a symbol index of the first designated symbol.
具体地,该配置模块用于通过系统广播消息向该UE配置该第一指定符号的符号索引,或者,该配置模块用于通过高层信令向该UE配置该第一指定符号的符号索引。其中,该系统广播消息可以为SIB消息、MIB消息等,该高层信令可以为RRC信令。Specifically, the configuration module is configured to configure a symbol index of the first designated symbol to the UE by using a system broadcast message, or the configuration module is configured to configure, by using high layer signaling, the symbol index of the first designated symbol to the UE. The system broadcast message may be an SIB message, an MIB message, or the like, and the high layer signaling may be RRC signaling.
可选地,该第一状态为生态-保护-优化ECO态,该第二状态为激活态。Optionally, the first state is an eco-protection-optimized ECO state, and the second state is an active state.
可选地,该UE发送的上行参考信号不占用该至少一个符号所在子帧的最后一个符号。Optionally, the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
可选地,该网络侧设备还包括:Optionally, the network side device further includes:
发送模块,用于向该UE发送上行参考信号配置信息;a sending module, configured to send uplink reference signal configuration information to the UE;
其中,该上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal configuration information includes at least one of the following information:
该UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息
The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe
该UE发送上行参考信号的周期信息和该UE发送上行参考信号的符号相对于第二指定符号的偏移量信息
The UE sends the periodic information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol
该UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;
该UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE transmits the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
上述所有可选技术方案,可以采用任意结合形成本申请的可选实施例,在此不再一一赘述。All the foregoing optional technical solutions may be used in any combination to form an optional embodiment of the present application, and details are not described herein again.
需要说明的是:上述实施例提供的UE和网络侧设备在传输上行参考信号时,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将设备的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。另外,上述实施例提供的UE和网络侧设备与上行参考信号的传输方法实施例属于同一构思,其具体实现过程详见方法实施例,这里不再赘述。It should be noted that the UE and the network side device provided by the foregoing embodiments only use the division of the foregoing functional modules when transmitting the uplink reference signal. In actual applications, the foregoing functions may be assigned different functions according to requirements. The module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the UE and the network side device provided by the foregoing embodiment are in the same concept as the method for transmitting the uplink reference signal, and the specific implementation process is described in the method embodiment, and details are not described herein again.
图13是本发明实施例提供的一种用户设备UE的结构示意图,参见图13,该UE包括通信总线1301、存储器1302、发射机1303、接收机1304和处理器1305,其中,存储器1302、发射机1303、接收机1304和处理器1305通过通信总线1301互通。FIG. 13 is a schematic structural diagram of a user equipment UE according to an embodiment of the present invention. Referring to FIG. 13, the UE includes a communication bus 1301, a memory 1302, a transmitter 1303, a receiver 1304, and a processor 1305. The machine 1303, the receiver 1304, and the processor 1305 communicate with each other through the communication bus 1301.
存储器1302,用于存储程序;a memory 1302, configured to store a program;
处理器1305,用于调用存储器1302中存储的程序,通过所述发射机1303和所述接收机
1304与指定网络设备通信,实现以上实施例中UE所执行的方法步骤。示例的,可以用于实现图11中发送模块的功能。a processor 1305, configured to call a program stored in the memory 1302, through the transmitter 1303 and the receiver
1304 is in communication with the designated network device, and implements the method steps performed by the UE in the foregoing embodiment. For example, it can be used to implement the function of the transmitting module in FIG.
其中,所述存储器1302还用于存储网络侧设备发送的上行参考信号配置信息。The memory 1302 is further configured to store uplink reference signal configuration information sent by the network side device.
其中,处理器1305可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。这些指令可以通过其中的处理器以配合实现及控制,用于执行本发明实施例揭示的方法。上述处理器还可以是通用处理器、数字信号处理器(英文:digital signal processor,简称:DSP)、专用集成电路(英文:application-specific integrated circuit,简称:ASIC)、现成可编程门阵列(英文:field programmable gate array,简称:FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。The processor 1305 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. These instructions may be implemented and controlled by a processor therein for performing the methods disclosed in the embodiments of the present invention. The processor may also be a general-purpose processor, a digital signal processor (English: digital signal processor, DSP for short), an application-specific integrated circuit (ASIC), or an off-the-shelf programmable gate array. : field programmable gate array (referred to as: FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
其中,上述通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器,解码器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。Wherein, the above general-purpose processor may be a microprocessor or the processor may be any conventional processor, decoder or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
另外通信总线1301除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明,在图13中将各种总线都标为通信总线1301。In addition, the communication bus 1301 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as communication bus 1301 in FIG.
在本发明实施例中,UE基于网络侧设备配置的上行参考信号配置信息,向该网络侧设备发送上行参考信号,其中,该UE发送的上行参考信号在时域上占用至少一个符号,该至少一个符号所在子帧内的上行符号均用于发送上行参考信号,使得上行参考信号可以在一个子帧的所有上行符号上时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,使得上行参考信号可在整个系统带宽上频分复用,从而可以支持大量UE来发送上行参考信号,适应于ECO态UE,而且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。In the embodiment of the present invention, the UE sends an uplink reference signal to the network side device according to the uplink reference signal configuration information configured by the network side device, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, where the at least one symbol The uplink symbols in the subframe in which the symbol is located are used to transmit the uplink reference signal, so that the uplink reference signal can be time-division multiplexed on all uplink symbols of one subframe, and the uplink reference signal sent by the UE occupies a contig in the frequency domain. The carrier can be configured with a bandwidth, so that the uplink reference signal can be frequency-division multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal to be adapted to the ECO state UE, and the uplink reference signal sent by the UE is in the frequency domain. At least one resource block is occupied, which occupies less resources and saves resources.
图14是本发明实施例提供的一种网络侧设备的结构示意图,该网络侧设备可以为基站、集中控制器等,本发明实施例对此不做限定。参见图14,该网络侧设备包括通信总线1401、存储器1402、发射机1403、接收机1404和处理器1405,其中,存储器1402、发射机1403、接收机1404和处理器1405通过通信总线1401互通。FIG. 14 is a schematic structural diagram of a network side device according to an embodiment of the present invention. The network side device may be a base station, a centralized controller, or the like, which is not limited in this embodiment of the present invention. Referring to FIG. 14, the network side device includes a communication bus 1401, a memory 1402, a transmitter 1403, a receiver 1404, and a processor 1405, wherein the memory 1402, the transmitter 1403, the receiver 1404, and the processor 1405 communicate with each other through the communication bus 1401.
存储器1402,用于存储程序;a memory 1402, configured to store a program;
处理器1405,用于调用存储器1402中存储的程序,通过所述发射机1403和所述接收机1404与指定网络设备通信,实现以上实施例中网络侧设备所执行的方法步骤。示例的,可以实现图12中接收模块的功能。The processor 1405 is configured to invoke a program stored in the memory 1402, and communicate with the designated network device by using the transmitter 1403 and the receiver 1404 to implement the method steps performed by the network side device in the above embodiment. By way of example, the function of the receiving module in FIG. 12 can be implemented.
可选的,该网络侧设备还可以包括通信接口,用于支持该网络侧设备与通信系统中的其他网络侧设备,如与核心网节点的通信等。Optionally, the network side device may further include a communication interface, configured to support the network side device and other network side devices in the communication system, such as communication with a core network node.
其中,处理器1405可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。这些指令可以通过其中的处理器以配合实现及控制,用于执行本发明实施例揭示的方法。上述处理器还可以是通用处理器、数字信号处理器(英文:digital signal processor,简称:DSP)、专用集成电路(英文:application-specific integrated circuit,简称:ASIC)、现成可编程门阵列(英
文:field programmable gate array,简称:FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。The processor 1405 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. These instructions may be implemented and controlled by a processor therein for performing the methods disclosed in the embodiments of the present invention. The processor may also be a general-purpose processor, a digital signal processor (English: digital signal processor, referred to as DSP), an application-specific integrated circuit (ASIC), and an off-the-shelf programmable gate array (English)
Text: field programmable gate array, referred to as: FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
其中,上述通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器,解码器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。Wherein, the above general-purpose processor may be a microprocessor or the processor may be any conventional processor, decoder or the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
另外通信总线1401除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明,在图14中将各种总线都标为通信总线1401。In addition, the communication bus 1401 includes a power bus, a control bus, and a status signal bus in addition to the data bus. However, for clarity of description, various buses are labeled as communication bus 1401 in FIG.
在本发明实施例中,网络侧设备可以接收用户设备UE发送的上行参考信号,其中,该UE发送的上行参考信号在时域上占用至少一个符号,该至少一个符号所在子帧内的上行符号均用于发送上行参考信号,使得上行参考信号可以在一个子帧的所有上行符号上时分复用,且该UE发送的上行参考信号在频域上占用连续子载波并可配置带宽,使得上行参考信号可在整个系统带宽上频分复用,从而可以支持大量UE来发送上行参考信号,适应于ECO态UE,而且,该UE发送的上行参考信号在频域上占用至少一个资源块,占据资源较少,节省了资源。In the embodiment of the present invention, the network side device may receive the uplink reference signal sent by the user equipment UE, where the uplink reference signal sent by the UE occupies at least one symbol in the time domain, and the uplink symbol in the subframe where the at least one symbol is located The uplink reference signal is used to transmit the uplink reference signal, so that the uplink reference signal can be time-multiplexed on all uplink symbols of one subframe, and the uplink reference signal sent by the UE occupies consecutive subcarriers in the frequency domain and can configure bandwidth, so that the uplink reference is used. The signal can be frequency-division multiplexed over the entire system bandwidth, so that a large number of UEs can be supported to transmit the uplink reference signal to be adapted to the ECO state UE, and the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, occupying resources. Less, saving resources.
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成,也可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,上述提到的存储介质可以是只读存储器,磁盘或光盘等。A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.
以上所述为本申请的实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
The above is an embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present application are intended to be included in the scope of the present application. .
Claims (29)
- 一种上行参考信号的传输方法,其特征在于,所述方法包括:A method for transmitting an uplink reference signal, characterized in that the method comprises:用户设备UE向网络侧设备发送上行参考信号;The user equipment UE sends an uplink reference signal to the network side device.其中,所述UE发送的上行参考信号在时域上占用至少一个符号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive of.
- 根据权利要求1所述的方法,其特征在于,所述至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。The method according to claim 1, wherein the uplink symbols in the subframe or time slot in which the at least one symbol is located are used to transmit an uplink reference signal.
- 根据权利要求2所述的方法,其特征在于,所述UE在第一指定符号上发送的上行参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求所述网络侧设备将所述UE从当前所处的第一状态切换至第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。The method according to claim 2, wherein the uplink reference signal sent by the UE on the first designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the The network side device switches the UE from the first state to the second state, where the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- 根据权利要求3所述的方法,其特征在于,所述第一指定符号的符号索引由所述网络侧设备配置。The method according to claim 3, wherein the symbol index of the first designated symbol is configured by the network side device.
- 根据权利要求3或4所述的方法,其特征在于,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。The method according to claim 3 or 4, wherein the first state is an eco-protection-optimized ECO state and the second state is an active state.
- 根据权利要求1-5中任意一项所述的方法,其特征在于,所述UE发送的上行参考信号不占用所述至少一个符号所在子帧的最后一个符号。The method according to any one of claims 1-5, wherein the uplink reference signal transmitted by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- 根据权利要求1-6任一权利要求所述的方法,其特征在于,所述方法还包括:The method according to any one of claims 1 to 6, wherein the method further comprises:所述UE接收所述网络侧设备发送的上行参考信号配置信息,并根据所述上行参考信号配置信息发送所述上行参考信号;Receiving, by the UE, the uplink reference signal configuration information sent by the network side device, and sending the uplink reference signal according to the uplink reference signal configuration information;其中,所述上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal configuration information includes at least one of the following information:所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息 The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息 The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- 一种上行参考信号的传输方法,其特征在于,所述方法包括:A method for transmitting an uplink reference signal, characterized in that the method comprises:网络侧设备接收用户设备UE发送的上行参考信号;Receiving, by the network side device, an uplink reference signal sent by the user equipment UE;其中,所述UE发送的上行参考信号在时域上占用至少一个符号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。 The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive of.
- 根据权利要求8所述的方法,其特征在于,所述至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。The method according to claim 8, wherein the uplink symbols in the subframe or time slot in which the at least one symbol is located are used to transmit an uplink reference signal.
- 根据权利要求9所述的方法,其特征在于,所述方法还包括:The method of claim 9 wherein the method further comprises:所述网络侧设备在第一指定符号上检测所述UE发送的上行参考信号,并根据检测结果确定是否将所述UE从当前所处的第一状态切换至第二状态,其中,所述UE在所述第一指定符号上发送的上行参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求所述网络侧设备将所述UE从所述第一状态切换至所述第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。The network side device detects an uplink reference signal sent by the UE on the first designated symbol, and determines, according to the detection result, whether to switch the UE from the first state to the second state, where the UE is The uplink reference signal sent on the first designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state Up to the second state, the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- 根据权利要求10所述的方法,其特征在于,所述方法还包括:The method of claim 10, wherein the method further comprises:所述网络侧设备向所述UE配置所述第一指定符号的符号索引。The network side device configures a symbol index of the first designated symbol to the UE.
- 根据权利要求10或11所述的方法,其特征在于,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。The method according to claim 10 or 11, wherein the first state is an eco-protection-optimized ECO state and the second state is an active state.
- 根据权利要求8-12中任意一项所述的方法,其特征在于,所述UE发送的上行参考信号不占用所述至少一个符号所在子帧的最后一个符号。The method according to any one of claims 8 to 12, wherein the uplink reference signal transmitted by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- 根据权利要求8-13任一权利要求所述的方法,其特征在于,所述方法还包括:The method according to any one of claims 8 to 13, wherein the method further comprises:向所述UE发送上行参考信号配置信息,所述上行参考信号配置信息包括以下信息中的至少一项:And transmitting uplink reference signal configuration information to the UE, where the uplink reference signal configuration information includes at least one of the following information:所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息 The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息 The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- 一种用户设备UE,其特征在于,所述UE包括:A user equipment UE, wherein the UE includes:发送模块,用于向网络侧设备发送上行参考信号;a sending module, configured to send an uplink reference signal to the network side device;其中,所述UE发送的上行参考信号在时域上占用至少一个符号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive of.
- 根据权利要求15所述的UE,其特征在于,所述至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。The UE according to claim 15, wherein an uplink symbol in a subframe or a time slot in which the at least one symbol is located is used to transmit an uplink reference signal.
- 根据权利要求16所述的UE,其特征在于,所述UE在第一指定符号上发送的上行 参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求网络侧设备将所述UE从当前所处的第一状态切换至第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。The UE according to claim 16, wherein the UE sends an uplink on the first designated symbol. The reference signal is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state to the second state, where the first designated symbol is N is a positive integer for the N symbols in the subframe or slot in which the at least one symbol is located.
- 根据权利要求17所述的UE,其特征在于,所述第一指定符号的符号索引由所述网络侧设备配置。The UE according to claim 17, wherein the symbol index of the first designated symbol is configured by the network side device.
- 根据权利要求17或18所述的UE,其特征在于,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。The UE according to claim 17 or 18, wherein the first state is an eco-protection-optimized ECO state and the second state is an active state.
- 根据权利要求15-19中任意一项所述的UE,其特征在于,所述UE发送地上行参考信号不占用所述至少一个符号所在子帧的的最后一个符号。The UE according to any one of claims 15 to 19, wherein the uplink reference signal transmitted by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- 根据权利要求15-20任一权利要求所述的UE,其特征在于,所述UE还包括:The UE according to any one of claims 15 to 20, wherein the UE further comprises:接收模块,用于接收所述网络侧设备发送的上行参考信号配置信息;a receiving module, configured to receive uplink reference signal configuration information sent by the network side device;所述发送模块还用于根据所述上行参考信号配置信息发送所述上行参考信号;The sending module is further configured to send the uplink reference signal according to the uplink reference signal configuration information;其中,所述上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal configuration information includes at least one of the following information:所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息 The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息 The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- 一种网络侧设备,其特征在于,所述网络侧设备包括:A network side device, where the network side device includes:接收模块,用于接收用户设备UE发送的上行参考信号;a receiving module, configured to receive an uplink reference signal sent by the user equipment UE;其中,所述UE发送的上行参考信号在时域上占用至少一个符号;所述UE发送的上行参考信号在频域上占用至少一个资源块,且所述至少一个资源块中的子载波为连续的。The uplink reference signal sent by the UE occupies at least one symbol in the time domain; the uplink reference signal sent by the UE occupies at least one resource block in the frequency domain, and the subcarriers in the at least one resource block are consecutive of.
- 根据权利要求22所述的网络侧设备,其特征在于,所述至少一个符号所在子帧或时隙内的上行符号均用于发送上行参考信号。The network side device according to claim 22, wherein the uplink symbols in the subframe or the time slot in which the at least one symbol is located are used to send an uplink reference signal.
- 根据权利要求23所述的网络侧设备,其特征在于,所述网络侧设备还包括:The network side device according to claim 23, wherein the network side device further comprises:切换模块,用于在第一指定符号上检测所述UE发送的上行参考信号,并根据检测结果确定是否将所述UE从当前所处的第一状态切换至第二状态,其中,所述UE在所述第一指定符号上发送的上行参考信号用于表示所述UE发起状态转换请求,所述状态转换请求表示所述UE请求所述网络侧设备将所述UE从所述第一状态切换至所述第二状态,所述第一指定符号为所述至少一个符号所在子帧或时隙内的N个符号,N为正整数。 a switching module, configured to detect, on a first designated symbol, an uplink reference signal sent by the UE, and determine, according to the detection result, whether to switch the UE from a first state to a second state, where the UE is The uplink reference signal sent on the first designated symbol is used to indicate that the UE initiates a state transition request, and the state transition request indicates that the UE requests the network side device to switch the UE from the first state Up to the second state, the first designated symbol is N symbols in a subframe or a time slot in which the at least one symbol is located, and N is a positive integer.
- 根据权利要求24所述的网络侧设备,其特征在于,所述网络侧设备还包括:The network side device according to claim 24, wherein the network side device further comprises:配置模块,用于向所述UE配置所述第一指定符号的符号索引。And a configuration module, configured to configure, to the UE, a symbol index of the first designated symbol.
- 根据权利要求24或25所述的网络侧设备,其特征在于,所述第一状态为生态-保护-优化ECO态,所述第二状态为激活态。The network side device according to claim 24 or 25, wherein the first state is an eco-protection-optimized ECO state, and the second state is an active state.
- 根据权利要求22-26所述的网络侧设备,其特征在于,所述UE发送的上行参考信号不占用所述至少一个符号所在子帧的最后一个符号。The network side device according to any one of claims 22-26, wherein the uplink reference signal sent by the UE does not occupy the last symbol of the subframe in which the at least one symbol is located.
- 根据权利要求22-27任一权利要求所述的网络侧设备,其特征在于,所述网络侧设备还包括:The network side device according to any one of claims 22-27, wherein the network side device further comprises:发送模块,用于向所述UE发送上行参考信号配置信息;a sending module, configured to send uplink reference signal configuration information to the UE;其中,所述上行参考信号配置信息包括以下信息中的至少一项:The uplink reference signal configuration information includes at least one of the following information:所述UE所在小区发送上行参考信号的周期信息和用于发送上行参考信号的子帧相对于指定子帧的偏移量信息 The period information of the uplink reference signal sent by the cell where the UE is located Offset information of a subframe for transmitting an uplink reference signal with respect to a specified subframe所述UE发送上行参考信号的周期信息和所述UE发送上行参考信号的符号相对于第二指定符号的偏移量信息 The UE sends the period information of the uplink reference signal And the offset information of the symbol of the uplink reference signal sent by the UE relative to the second designated symbol所述UE发送上行参考信号的序列索引信息(u,v)及循环移位信息α;The UE sends sequence index information (u, v) of the uplink reference signal and cyclic shift information α;所述UE发送上行参考信号在频域上的频域起始位置信息f0及占用的带宽信息W。The UE sends the frequency domain start position information f 0 and the occupied bandwidth information W of the uplink reference signal in the frequency domain.
- 一种上行参考信号的传输系统,其特征在于,所述系统包括上述权利要求15-21任一所述的用户设备UE和上述权利要求22-28任一所述的网络侧设备。 A transmission system for an uplink reference signal, characterized in that the system comprises the user equipment UE according to any one of claims 15-21 and the network side equipment according to any one of claims 22-28.
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