Multi-carrier wake-up signal transmission method and device

Abstract

The invention discloses a multi-carrier wake-up signal transmission method, which comprises the following steps of: determining a downlink control signaling which comprises indication information for activating or deactivating wake-up signal monitoring; and in a carrier group supported by the same target terminal, determining a second carrier used for bearing the wake-up signal and a first carrier used for bearing the downlink control signaling. The invention further comprises network side equipment, terminal side equipment, a memory, a processor and a communication system which are used for implementing the method. The problem that a wake-up signal cooperation mechanism is lacked under the multi-carrier condition is solved, and energy saving of the terminal is further achieved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a multi-carrier wake-up signal transmission method and device. Background Art

[0002] In order to save power consumption of the terminal, a main transceiver and a low-power receiver are configured in the terminal. The terminal can put the main transceiver in a sleep state or a normal state. When the main transceiver is in a normal state, the terminal uses the main transceiver to process downlink service data and uplink service data. The terminal uses a low-power receiver to monitor the low-power wake-up signal. If a low-power wake-up signal is received, the main transceiver is awakened. If no low-power wake-up signal is received or the received LPWUS indicates not to wake up, the main transceiver remains in a sleep state. In the RRC connection state, the base station high-level signaling can enable and disable the downlink control channel monitoring process triggered by the wake-up signal. When the terminal device (such as UE) correctly decodes the high-level signaling to enable the wake-up signal, the terminal feedbacks ACK, and then the base station knows that the UE starts to monitor the wake-up signal.

[0003] However, there is no wake-up signal coordination mechanism under multi-carrier conditions, and the terminal device does not know which carrier to monitor the wake-up signal and the working carrier of the downlink control signal. After waking up, it cannot return to the energy-saving state. Summary of the invention

[0004] The present application proposes a multi-carrier wake-up signal transmission method and device, which solves the problem of lack of a wake-up signal coordination mechanism under multi-carrier conditions and further achieves terminal energy saving. Therefore, the present application is also a method or device for further achieving terminal energy saving.

[0005] In a first aspect, the present application proposes a multi-carrier wake-up signal transmission method, comprising the following steps: Determining downlink control signaling, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring; In a carrier group supported by the same target terminal, a second carrier for carrying the wake-up signal and a first carrier for carrying the downlink control signaling are determined.

[0006] The method described in any one of the embodiments of the first aspect of the present application, used in a terminal side device, comprises the following steps: Determine, in a carrier group supported by the same target terminal, a second carrier for carrying the wake-up signal, and receive the wake-up signal through the second carrier; A first carrier for carrying downlink control signaling is determined in the carrier group, and downlink control signaling is received through the first carrier, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring.

[0007] Preferably, the wake-up signal is received at the second transceiver. In one embodiment, in response to the wake-up signal, the first transceiver monitors the downlink control signaling. In another embodiment, in response to the wake-up signal, a timer is started, and the downlink control signaling is monitored at the first transceiver within the working time of the timer.

[0008] The method described in any one of the embodiments of the first aspect of the present application, used in a network side device, comprises the following steps: Determine, in a carrier group supported by the same target terminal, a second carrier for carrying the wake-up signal, and send the wake-up signal through the second carrier; A first carrier for carrying downlink control signaling is determined in the carrier group, and downlink control signaling is sent through the first carrier, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring.

[0009] In any one embodiment of the first aspect of the present application, preferably, configuration information is determined, the configuration information comprising an indication of a carrier group, wherein a primary carrier is used to carry a wake-up signal.

[0010] In any one embodiment of the first aspect of the present application, preferably, configuration information is determined, wherein the configuration information includes an indication of a carrier group, wherein one or more carriers are set to carry a wake-up signal.

[0011] In any embodiment of the first aspect of the present application, preferably, the downlink control signaling includes indication information, and the indication information is used to determine the second carrier carrying the wake-up signal.

[0012] In any embodiment of the first aspect of the present application, preferably, the first carrier used to carry the downlink control signaling is used as the second carrier used to carry the wake-up signal, or the second carrier used to carry the wake-up signal is used as the first carrier used to carry the downlink control signaling.

[0013] In any one embodiment of the first aspect of the present application, preferably, the first carrier is determined to be the main carrier or all carriers in the carrier group, and / or the second carrier is determined to be the main carrier or all carriers in the carrier group.

[0014] In any one embodiment of the first aspect of the present application, preferably, the wake-up signal includes a corresponding awakened terminal identifier and an index of the corresponding first carrier.

[0015] In any one embodiment of the first aspect of the present application, preferably, the carrier group includes multiple DRX groups, and a second carrier for carrying the wake-up signal is determined in each DRX group; or, one or more fixed carriers are determined to carry the wake-up signal.

[0016] In any one embodiment of the first aspect of the present application, preferably, the wake-up signal includes indication information of the first carrier, and / or the wake-up signal includes indication information of the DRX group to which the first carrier belongs.

[0017] In the second aspect, an embodiment of the present application further proposes a network side device for implementing the method described in the embodiment of the first aspect of the present application, wherein at least one module in the network side device is used to implement at least one of the following functions: determining a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal; sending a wake-up signal through the second carrier; determining a first carrier for carrying downlink control signaling in the carrier group; and sending the downlink control signaling through the first carrier.

[0018] In the third aspect, an embodiment of the present application further proposes a terminal side device for implementing the method described in the embodiment of the first aspect of the present application, wherein at least one module in the terminal side device is used to implement at least one of the following functions: determining a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal; receiving the wake-up signal through the second carrier; determining a first carrier for carrying downlink control signaling in the carrier group; and receiving the downlink control signaling through the first carrier.

[0019] In the third aspect, the present application also proposes a communication device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method described in any one of the embodiments of the first aspect of the present application.

[0020] In a fourth aspect, the present application further proposes a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in any embodiment of the first aspect of the present application are implemented.

[0021] In a fifth aspect, the present application also proposes a mobile communication system, comprising at least one network side device as described in any embodiment of the present application and / or at least one terminal side device as described in any embodiment of the present application.

[0022] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects: The present application achieves further energy saving of terminal equipment under the condition that the terminal supports multiple carriers. First, the carrier for transmitting the wake-up signal and the carrier for waking up the downlink control channel under the condition that the target terminal supports multiple carriers are determined through a collaborative mechanism, thereby avoiding energy consumption caused by blind search of the terminal equipment. Furthermore, by periodically monitoring the downlink control channel and responding to the indication of the downlink control channel to enter the energy-saving state, energy consumption is further reduced. In the best embodiment of the present application, the terminal equipment monitors the wake-up signal through a low-power receiver and processes uplink and downlink data or signaling through the main transceiver, thereby further improving the energy-saving effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 This is a flow chart of an embodiment of the method of this application; Figure 2 This is a flow chart of an embodiment of the method of the present application for a terminal side device; Figure 3 This is a flow chart of an embodiment of the method of the present application for a network-side device; Figure 4 It is a schematic diagram of an embodiment of a network side device; Figure 5 is a schematic diagram of an embodiment of a terminal side device; Figure 6 A schematic diagram of the structure of a network side device according to another embodiment of the present invention; Figure 7 It is a block diagram of a terminal side device according to another embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0025] On the one hand, the base station and the terminal need to unify the carrier where the multi-carrier terminal wake-up signal monitors and whether the wake-up signal wakes up all or part of the multi-carriers of the main receiver. On the other hand, when the terminal starts to monitor the downlink control channel, the base station also needs to instruct the terminal to return to monitoring the wake-up signal when energy saving is required.

[0026] When the terminal supports multiple carriers, it is necessary to define which carrier the terminal monitors for low-power wake-up signals and which carrier the terminal works on on the main transceiver after wake-up. And when the terminal monitors the downlink control channel, downlink signaling is also required to promptly instruct the terminal to enter the energy-saving state and monitor the wake-up signal.

[0027] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0028] Figure 1 This is a flow chart of an embodiment of the method of this application.

[0029] The present application proposes a multi-carrier wake-up signal transmission method or a terminal energy saving method, comprising the following steps 110-130: Step 110: Determine a second carrier for carrying the wake-up signal in a carrier group supported by the same target terminal.

[0030] In one embodiment, configuration information is first determined, the configuration information comprising an indication of a carrier group, wherein a primary carrier is used to carry a wake-up signal.

[0031] In one embodiment, the second carrier is determined to be a main carrier or all carriers in the carrier group. Alternatively, the second carrier is an activated carrier of the terminal in the first transceiver.

[0032] In one embodiment, configuration information is determined, the configuration information including an indication of a carrier group, wherein one or more carriers are configured to carry the wake-up signal. The configuration information may be pre-configured or may come from a high-level signaling.

[0033] In one embodiment, the carrier group includes multiple DRX groups, and a second carrier for carrying the wake-up signal is determined in each DRX group; or, one or more fixed carriers are determined to carry the wake-up signal.

[0034] Step 120: Determine and use a first carrier for carrying the downlink control signaling in a carrier group supported by the same target terminal.

[0035] The first carrier may be one or more.

[0036] In one embodiment, the first carrier is determined to be a main carrier or all carriers in the carrier group. Alternatively, the first carrier is an activated carrier of the terminal in the first transceiver.

[0037] In one embodiment, the wake-up signal includes an identifier of a corresponding woken-up terminal and an index of a corresponding first carrier.

[0038] The wake-up signal includes indication information of the first carrier, and / or the wake-up signal includes indication information of the DRX group in which the first carrier is located. For example, the carrier groups correspond to carriers in two DRX groups respectively, or the wake-up signal indicates which DRX group the first carrier is to be awakened.

[0039] Step 130: Determine downlink control signaling, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring.

[0040] Preferably, the downlink control signaling instructs the target terminal to start monitoring the wake-up signal.

[0041] Although an example of sequential implementation from step 110 to step 130 is given in the above embodiment, it should be noted that the present application does not limit the sequential relationship of steps 110~130. In some embodiments, the second carrier carrying the wake-up signal is first determined, and the first carrier carrying the downlink control signaling is further determined by the indication information in the wake-up signal; in other embodiments, the first carrier carrying the downlink control signaling is first determined, and the second carrier carrying the wake-up signal is determined by the indication information of the downlink control signaling. And, in some embodiments, the second carrier carrying the wake-up signal and the first carrier carrying the downlink control signaling are determined according to preset configuration information. Similarly, the sequential relationship of steps 210~240 and steps 310~340 in the following embodiments can also be adaptively changed according to the above principles.

[0042] For example, the downlink control signaling includes indication information, and the indication information is used to determine the second carrier that carries the wake-up signal, which is one, multiple or all carriers in the carrier group.

[0043] For another example, in one embodiment, the first carrier used to carry the downlink control signaling is used as the second carrier used to carry the wake-up signal, or, in one embodiment, the second carrier used to carry the wake-up signal is used as the first carrier used to carry the downlink control signaling.

[0044] It should be noted that the above steps are used for network entities of a wireless communication system, including terminal-side devices, network-side devices or other intermediate devices; the above steps can also be used for service devices that provide information processing for the network entity devices; the above steps can also be used for any device, system, subsystem, circuit, chip or software entity that provides information reception, transmission, identification and processing for terminal-side devices or network-side devices.

[0045] Figure 2This is a flow chart of an embodiment of the method of the present application for a terminal side device. In order to save power consumption of the terminal, a main transceiver and a low-power receiver are configured in the terminal. When the main transceiver is in a normal state, the terminal uses the main transceiver to process downlink service data and uplink service data. The terminal uses a low-power receiver to monitor a low-power wake-up signal. If a low-power wake-up signal is received, the main transceiver is woken up. If no low-power wake-up signal is received or the received LPWUS indicates not to wake up, the main transceiver remains in a sleep state. The method described in the embodiment of the present application is used for a terminal side device and includes the following steps 210 to 240: Step 210: Determine a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal.

[0046] When a multi-carrier terminal monitors a wake-up signal on a low-power transceiver, it needs to determine which carrier to monitor on.

[0047] Preferably, the second carrier is the main carrier of the first transceiver configured and obtained by the terminal or the activated carrier of the terminal in the first transceiver (i.e., the monitoring wake-up signal is triggered by the received carrier information). The second carrier may be one or more, and the second carrier is the main carrier of the first transceiver configured and obtained by the terminal or the carrier on which the terminal triggers the monitoring wake-up signal in the first transceiver or other set carriers. The following provides multiple embodiments of the terminal determining the second carrier, methods 1 to 5.

[0048] Mode 1: The terminal configures and activates N carriers on the first transceiver (primary transceiver). When the terminal works on the second transceiver (low-power transceiver), it monitors the wake-up signal on the configured primary carrier. For example, the terminal configures and activates 3 carriers on the first transceiver, carrier 1 is the primary carrier, carrier 2 and carrier 3 are auxiliary carriers, and when the terminal works on the low-power transceiver, it only monitors the wake-up signal on carrier 1.

[0049] Mode 2: The terminal configures and activates N carriers on the first transceiver, and the terminal receives signaling on the nth (n=1~N) carrier to trigger the terminal to work on the low-power transceiver, and the terminal monitors the wake-up signal on the carrier triggered by the signaling. For example, the terminal configures and activates three carriers on the first transceiver, carrier 1 is the main carrier, and carriers 2 and 3 are auxiliary carriers. The terminal receives downlink signaling on carrier 2 to indicate that the terminal works on the low-power transceiver, and the terminal monitors the wake-up signal on carrier 2 on the low-power transceiver.

[0050] Mode 3: The terminal configures and activates N carriers on the first transceiver, and the terminal receives a signaling triggering the terminal to work on a low-power transceiver, and the signaling indicates the carrier information of the terminal monitoring the wake-up signal. For example, the terminal configures and activates three carriers on the first transceiver, carrier 1 is the main carrier, and carriers 2 and 3 are auxiliary carriers. The terminal receives a downlink signaling on carrier 2 indicating that the terminal works on a low-power transceiver, and the downlink signaling indicates the carrier information of the terminal working on a low-power transceiver. For example, indicating carrier 3, or new carrier information, including the frequency band information of the carrier.

[0051] For another example, when high-level signaling triggers the terminal to work in the second transceiver, the signaling indicates the carrier index to the terminal for monitoring the wake-up signal on the second transceiver, or introduces a new carrier, and indicates the new frequency band that the terminal needs to monitor on the second transceiver by indicating frequency band information, center frequency and other information.

[0052] For another example, when the downlink control channel triggers the terminal to work on the second transceiver, one way is to use terminal-specific downlink control signaling to trigger the terminal to turn on the second transceiver and indicate the working carrier index. Another way is to use group-common downlink control signaling to trigger a group of terminals to turn on the second transceiver, and each group of information indicates the working carrier index of the corresponding terminal on the second transceiver.

[0053] Mode 4: The terminal configures and activates N carriers on the first transceiver. When the terminal works on the second transceiver (low-power transceiver), it monitors the wake-up signal on the configured fixed carrier. Preferably, the fixed carrier is a carrier on the lowest frequency band or a carrier on the highest frequency band. This mode is conducive to terminal implementation.

[0054] Mode 5: The terminal configures and activates N carriers on the first transceiver. When the terminal works on the second transceiver (low-power transceiver), it monitors the wake-up signal on all the configured carriers.

[0055] In other embodiments, the carrier groups correspond to carriers in two DRX groups respectively. When a multi-carrier terminal monitors a wake-up signal on a low-power transceiver, it is necessary to determine which carrier to monitor on. Considering that the terminal will be configured as two DRX groups when it is multi-carrier, the specific solution is that a MAC entity includes multiple groups of DRX configurations, and some parameters of each group of DRX configurations are different, and each DRX group independently controls the opening and closing of some DRX timers. For example, the base station divides the service cells under the MAC entity into DRX groups according to the business characteristics and service cell characteristics. The values ​​of some timers of each DRX group are different, such as the DRX activation timer and the inactivation timer, and each DRX group maintains independent timer opening, restarting and closing. The following are multiple embodiments of the terminal determining the second carrier, methods 1~2.

[0056] Mode 1: The terminal monitors the wake-up signal on the fixed carrier corresponding to each DRX group. For example, the terminal monitors the wake-up signal on CC1 on the primary DRX group and monitors the wake-up signal on CC2 on the secondary DRX group. When the terminal is configured with multiple DRX groups, the first carrier is all or part of the carriers in the DRX group.

[0057] Method 2: The terminal monitors a wake-up signal on a fixed carrier, and the wake-up signal indicates which DRX group corresponds to the first carrier to be turned on. For example, the terminal monitors the wake-up signal on the main carrier or the fixed carrier, decodes the information of the wake-up signal, and obtains which DRX group corresponds to the first carrier to be turned on. The first carrier is all or part of the carriers in the DRX. For example, after a wake-up signal is detected on any carrier in the carrier group, it is determined that the first carrier is one, multiple or all carriers in one or two DRZ groups.

[0058] Step 220: Receive a wake-up signal via a second carrier.

[0059] Preferably, the wake-up signal is received at the second transceiver. The terminal acquires the carrier group or the second carrier, and the terminal receives the wake-up signal on the carrier group of the second transceiver to wake up the first carrier of the first transceiver.

[0060] Preferably, the renewal signal carries information of one or more first carriers.

[0061] Step 230: Determine a first carrier in the carrier group for carrying downlink control signaling.

[0062] After receiving the wake-up signal, the terminal is triggered to wake up and work on the first transceiver. It is necessary to determine which carrier or carriers on the first transceiver to wake up.

[0063] Mode 1: After the terminal wakes up, it is connected to the first transceiver and only the main carrier is woken up. After the main carrier works normally, the multi-carrier is specifically configured and used.

[0064] Mode 2: After the terminal wakes up, it is connected to the first transceiver and wakes up all the carriers that were most recently activated by the first transceiver. When the terminal is triggered from the first transceiver to work on the second transceiver, it is necessary to store the carrier information configured and activated on the first transceiver. When the terminal wakes up and works on the first transceiver again, it directly activates the corresponding stored activated carrier.

[0065] For example, the terminal configures and activates three carriers on the first transceiver, carrier 1 is the main carrier, carrier 2 and carrier 3 are auxiliary carriers. When the terminal is triggered from the first transceiver to work on the second transceiver, it is necessary to store the carrier information configured and activated on the first transceiver. When the terminal wakes up and works on the first transceiver again, it directly activates the corresponding three stored activated carriers.

[0066] Mode 3: The terminal receives a wake-up signal, and the wake-up signal indicates carrier information for the terminal to work after wake-up.

[0067] 1) The wake-up signal is in the form of an M-bit bitmap, corresponding to the awakened terminal information and carrier index.

[0068] For example, the terminal configuration wakes up two carriers, and the wake-up signal is 8 bits. The first 4 bits indicate the wake-up mode of the 4 UEs. When the bit is "1", it means that the corresponding terminal is awakened, and when the bit is "0", it means that the corresponding terminal is not awakened. The last 4 bits indicate the wake-up carrier information corresponding to the corresponding 4 UEs. When the bit is "0", it means that the first carrier is awakened, and when the bit is "1", it means that the second carrier is awakened. Or every 2 bits represent the wake-up status and wake-up carrier information of the corresponding terminal, and 8 bits represent the wake-up status and wake-up carrier information of 4 terminals.

[0069] 2) The wake-up signal is in the form of coded bits, and each state represents the wake-up terminal and the corresponding wake-up carrier index.

[0070] For example, the terminal configuration wakes up two carriers, and the wake-up signal is 8 bits.

[0071]

[0072] Step 240: Receive downlink control signaling through the first carrier, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring.

[0073] In one embodiment, in response to receiving the wake-up signal, the first transceiver monitors downlink control signaling. In another embodiment, in response to the wake-up signal, a timer is started, and the first transceiver monitors downlink control signaling within the working time of the timer.

[0074] For example, the terminal monitors the downlink control channel within a first timer time after the first time. When the terminal monitors the downlink control channel at the first time, it receives downlink control signaling instructing the terminal to monitor the wake-up signal or instructing the terminal to monitor the downlink control channel.

[0075] When the terminal monitors the downlink control channel for the first time, the downlink control signaling instructs the terminal to monitor the wake-up signal on the second transceiver. When the wake-up signal is monitored, the terminal starts monitoring the downlink control channel. If the downlink control signaling is received to instruct the terminal to end monitoring the downlink control channel, it continues to monitor the wake-up signal on the second transceiver.

[0076] Downlink control signaling multiplexes the PDCCH skipping indication of the downlink control channel or the newly designed signaling information, that is, after detecting the downlink control signaling, the terminal does not monitor the downlink control channel, but switches to the second receiver to monitor the wake-up signal. After the signaling indication, all carriers in the DRX group or all terminal carriers are applicable.

[0077] Further, in response to uplink data transmission, the terminal device stops receiving the wake-up signal. For example, when the terminal has uplink data transmission, the terminal autonomously switches from monitoring the wake-up signal to monitoring the downlink control channel on the first carrier of the first transceiver. When the terminal has an uplink data transmission requirement while monitoring the wake-up signal, the terminal re-monitors the downlink control channel.

[0078] It should be noted that, although the above embodiments provide examples of sequential implementation from steps 210 to 240, the present application does not limit the sequential relationship of steps 210 to 240. For example, in some embodiments, in response to receiving downlink control signaling on one or more first carriers, the terminal device further receives a wake-up signal on one or more second carriers under set conditions.

[0079] Figure 3 The method of the present application is used for a network side device, and includes the following steps 310 to 340: Step 310: Determine a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal.

[0080] The second carrier is the main carrier configured for the target terminal acquired by the network device, or the carrier activated by the downlink control signaling. The network device configures the main carrier of the first transceiver for the target terminal as the second carrier, or the network device sends the downlink control signaling to the first transceiver of the target terminal device on the second carrier. Corresponding to the embodiment of step 210, Mode 1: The network device configures / activates N carriers of the first transceiver of the target terminal and sends a wake-up signal on the configured primary carrier; Mode 2: The network device configures / activates N carriers of the first transceiver of the target terminal, sends downlink control signaling on the configured nth carrier, and sends a wake-up signal on the nth carrier.

[0081] Mode 3: The network device configures / activates N carriers of the first transceiver of the target terminal, sends a downlink control signaling on any carrier, and the downlink control signaling indicates a second carrier; and sends a wake-up signal on the second carrier indicated by the downlink control signaling; Mode 4: The network device configures / activates N carriers of the first transceiver of the target terminal, and sends a wake-up signal on a fixed carrier among the N carriers; Mode 5: The network device configures / activates N carriers of the first transceiver of the target terminal, and sends a wake-up signal in all of the N carriers.

[0082] When the target terminal device is configured with multiple DRX groups, accordingly, Mode 1: The network device sends a wake-up signal on the fixed carrier corresponding to each DRX group.

[0083] Mode 2: The network device monitors a wake-up signal on a fixed carrier, and the wake-up signal indicates which DRX group corresponds to the first carrier to be turned on.

[0084] The method for determining the second carrier is as described in steps 110 and 210, and will not be repeated here.

[0085] Step 320: Send a wake-up signal via the second carrier.

[0086] The function, format and indication information contained in the wake-up signal are as described in steps 120 and 220, and will not be repeated here.

[0087] Step 330: Determine a first carrier in the carrier group for carrying downlink control signaling.

[0088] For example, after the network device sends the wake-up signal, it sends the downlink control signaling on the main carrier; or, after the network device sends the wake-up signal, it sends the downlink control signaling on one carrier in the carrier group, or sends the downlink control signaling on multiple carriers at the same time. For another example, the network device sends the downlink control signaling on the carrier indicated by the wake-up signal.

[0089] The method for determining the first carrier is as described in steps 130 and 230, and will not be repeated here.

[0090] Step 340: Send a downlink control signaling through the first carrier, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring.

[0091] In one embodiment, in response to sending a wake-up signal on one or more second carriers, downlink control signaling is sent on one or more first carriers.

[0092] The function of the downlink control signaling and the indication information contained therein are as described in steps 140 and 240 and will not be repeated here.

[0093] Further, in response to receiving uplink data from the target terminal device, sending the wake-up signal is stopped.

[0094] It should be noted that, although the above embodiments provide examples of sequential implementation from steps 310 to 340, the present application does not limit the sequential relationship of steps 310 to 340. For example, in some embodiments, in response to sending downlink control signaling on one or more first carriers, the network device further sends a wake-up signal on one or more second carriers under set conditions.

[0095] Figure 4 Schematic diagram of an embodiment of a network side device. The embodiment of the present application also proposes a network side device for implementing a method of any embodiment of the present application, wherein at least one module in the network side device is used to implement at least one of the following functions: determining a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal; sending a wake-up signal through the second carrier; determining a first carrier for carrying downlink control signaling in the carrier group; sending the downlink control signaling through the first carrier.

[0096] To implement the above technical solution, the present application proposes a network side device 400, which includes a network sending module 401, a network determining module 402, and a network receiving module 403 that are interconnected.

[0097] The network sending module is used to send a wake-up signal and a downlink control signaling. In some embodiments, the network sending module is also used to send a configuration / activation signaling.

[0098] The network determination module is used to determine the carrier group, and further, is also used to determine the second carrier and / or the first carrier.

[0099] The network receiving module is used to receive configuration information or high-layer signaling. In some embodiments, the network receiving module receives uplink data.

[0100] The specific methods for implementing the functions of the network sending module, the network determining module, and the network receiving module are as described in the various method embodiments of the present application and will not be repeated here.

[0101] The network side equipment described in this application may refer to base station facilities, network side equipment or servers connected to the base station, or a system that provides services for the above-mentioned equipment, or any system, subsystem, module, circuit, chip or software running device that provides information reception, transmission, identification and processing for the above-mentioned equipment.

[0102] Figure 5It is a schematic diagram of an embodiment of a terminal side device. The present application also proposes a terminal side device for implementing a method of any embodiment of the present application, wherein at least one module in the terminal side device is used to implement at least one of the following functions: determining a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal; receiving a wake-up signal through the second carrier; determining a first carrier for carrying downlink control signaling in the carrier group; and receiving the downlink control signaling through the first carrier.

[0103] To implement the above technical solution, the present application proposes a terminal side device 500, which includes a terminal sending module 501, a terminal determining module 502, and a terminal receiving module 503 that are interconnected.

[0104] The terminal receiving module is used to receive a wake-up signal and a downlink control signaling. In an embodiment of the present application, the terminal receiving module further includes a first receiving module and a second receiving module. The first receiving module is a main receiving module, and the second receiving module is a low-power receiving module. The first receiving module belongs to the first transceiver and is used to receive downlink control signaling; the second receiving module belongs to the second transceiver and is used to receive a wake-up signal. In some embodiments, the terminal receiving module or the first receiving module is also used to receive configuration / activation signaling.

[0105] The terminal determination module is used to determine the carrier group, and further, is also used to determine the second carrier and / or the first carrier.

[0106] The terminal sending module is used to send uplink data.

[0107] The specific methods for implementing the functions of the terminal sending module, the terminal determining module, and the terminal receiving module are as described in the various method embodiments of the present application and will not be repeated here.

[0108] The terminal side device described in this application may refer to a user equipment (UE), a personal mobile terminal, a smart terminal, a mobile phone, a computer with communication function, or a system that provides services for the above-mentioned devices, or any system, subsystem, module, circuit, chip or software running device that provides information reception, transmission, identification and processing for the above-mentioned devices.

[0109] It should also be noted that the low-power transceiver or low-power receiving module described in the present application not only refers to a low wake-up signal power, but also refers to a low power consumption of the transceiver or receiving module. This is because the functions of the low-power transceiver or receiving module are different from those of the main transceiver or main receiving module, and can be dedicated to receiving wake-up signals, while reducing unnecessary response bandwidth and data processing functions.

[0110] Figure 6A schematic diagram of the structure of a network side device of another embodiment of the present invention is shown. As shown in the figure, the network side device 600 includes a processor 601, a wireless interface 602, and a memory 603. Among them, the wireless interface can be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The wireless interface implements the communication function with the terminal side device, processes wireless signals through receiving and transmitting devices, and the data carried by the signals communicates with the memory or processor via an internal bus structure. The memory 603 contains a computer program for executing any one embodiment of the present application, and the computer program runs or changes on the processor 601. When the memory, processor, and wireless interface circuit are connected through a bus system, the bus system includes a data bus, a power bus, a control bus, and a status signal bus, which will not be repeated here.

[0111] Figure 7 7 is a block diagram of a terminal side device according to another embodiment of the present invention. The terminal side device 700 includes at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the terminal side device 700 are coupled together through a bus system. The bus system is used to realize connection and communication between these components. The bus system includes a data bus, a power bus, a control bus and a status signal bus.

[0112] The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen.

[0113] The memory 702 stores executable modules or data structures. The memory may store an operating system and application programs. The operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application program includes various application programs, such as a media player, a browser, etc., which are used to implement various application services.

[0114] In an embodiment of the present invention, the memory 702 contains a computer program for executing any one of the embodiments of the present application, and the computer program runs or changes on the processor 701 .

[0115] The memory 702 includes a computer-readable storage medium, and the processor 701 reads the information in the memory 702 and completes the steps of the above method in combination with its hardware. Specifically, the computer-readable storage medium stores a computer program, and when the computer program is executed by the processor 701, each step of the method embodiment described in any of the above embodiments is implemented.

[0116] The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the method of the present application can be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in software form. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a ready-made programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present invention can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in a decoding processor.

[0117] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of complete hardware embodiments, complete software embodiments, or embodiments combining software and hardware. In a typical configuration, the device of the present application includes one or more processors (CPU), an input / output user interface, a network interface, and a memory.

[0118] Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0119] Therefore, the present application also proposes a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in any embodiment of the present application are implemented. For example, the memory 603, 702 of the present invention may include a non-permanent memory in a computer-readable medium, a random access memory (RAM) and / or a non-volatile memory, such as a read-only memory (ROM) or a flash RAM.

[0120] Based on the embodiments of the above-mentioned apparatus of the present application, the present application also proposes a mobile communication system, comprising at least one embodiment of any terminal side device in the present application and / or at least one embodiment of any network side device in the present application.

[0121] It should be noted that the specific mobile communication technology described in the present invention is not limited, and may be WCDMA, CDMA2000, TD-SCDMA, WiMAX, LTE / LTE-A, LAA, MuLTEfire, and subsequent fifth, sixth, and Nth generation mobile communication technologies.

[0122] The terminal described in the present invention refers to a terminal-side product that can support the communication protocol of the land mobile communication system, a special communication modem module (Wireless Modem), which can be integrated into various types of terminal forms such as mobile phones, tablet computers, data cards, etc. to complete the communication function.

[0123] For the convenience of description, the fourth-generation mobile communication system LTE / LTE-A and its derivative MulteFire are used as examples, where the mobile communication terminal can be represented as UE (User Equipment), and the access device on the network side can be represented as a base station or access point.

[0124] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0125] It should also be noted that the terms “first”, “second”, etc. in the present application are used to distinguish multiple objects with the same name and have no meaning of order or size unless specifically stated.

[0126] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A multi-carrier wake-up signal transmission method, characterized in that: The following steps are involved: Determining downlink control signaling, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring; In a carrier group supported by the same target terminal, a second carrier for carrying the wake-up signal and a first carrier for carrying the downlink control signaling are determined.

2. A multi-carrier wake-up signal transmission method, used for a network side device, characterized in that: It includes the following steps: Determine, in a carrier group supported by the same target terminal, a second carrier for carrying the wake-up signal, and send the wake-up signal through the second carrier; A first carrier for carrying downlink control signaling is determined in the carrier group, and downlink control signaling is sent through the first carrier, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring.

3. A multi-carrier wake-up signal transmission method, used for a terminal side device, characterized in that: It includes the following steps: Determine, in a carrier group supported by the same target terminal, a second carrier for carrying the wake-up signal, and receive the wake-up signal through the second carrier; A first carrier for carrying downlink control signaling is determined in the carrier group, and downlink control signaling is received through the first carrier, where the downlink control signaling includes indication information for activating or deactivating wake-up signal monitoring.

4. The method according to claim 3, characterized in that: The wake-up signal is received at the second transceiver, and in response to the wake-up signal, the first transceiver monitors downlink control signaling.

5. The method according to claim 3, characterized in that: The second transceiver receives a wake-up signal, starts a timer in response to the wake-up signal, and monitors downlink control signaling at the first transceiver within the working time of the timer.

6. The method according to any one of claims 1 to 5, characterized in that: Configuration information is determined, where the configuration information includes an indication of a carrier group, in which a primary carrier is used to carry a wake-up signal.

7. The method according to any one of claims 1 to 5, characterized in that: Configuration information is determined, where the configuration information includes an indication of a carrier group, wherein one or more carriers are set to carry a wake-up signal.

8. The method according to any one of claims 1 to 5, characterized in that: The downlink control signaling includes indication information, and the indication information is used to determine a second carrier that carries a wake-up signal.

9. The method according to any one of claims 1 to 5, characterized in that: The first carrier used to carry the downlink control signaling is used as the second carrier used to carry the wake-up signal, or the second carrier used to carry the wake-up signal is used as the first carrier used to carry the downlink control signaling.

10. The method according to any one of claims 1 to 5, characterized in that: Determine the first carrier as the main carrier or all the carriers in the carrier group, and / or determine the second carrier as the main carrier or all the carriers in the carrier group.

11. The method according to any one of claims 1 to 5, characterized in that: The wake-up signal includes an identifier of a corresponding awakened terminal and an index of a corresponding first carrier.

12. The method according to any one of claims 1 to 5, characterized in that: The carrier group includes a plurality of DRX groups, and a second carrier for carrying the wake-up signal is determined in each DRX group; or, one or more fixed carriers are determined to carry the wake-up signal.

13. The method according to any one of claims 1 to 5, characterized in that: The wake-up signal includes indication information of the first carrier, and / or the wake-up signal includes indication information of the DRX group to which the first carrier belongs.

14. A network side device, used to implement the method according to claim 1 or 2, characterized in that: At least one module in the network side device is used to implement at least one of the following functions: determining a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal; sending the wake-up signal through the second carrier; determining a first carrier for carrying downlink control signaling in the carrier group; and sending the downlink control signaling through the first carrier.

15. A terminal side device, used to implement the method described in any one of claims 1, 3 to 5, characterized in that: At least one module in the terminal side device is used to implement at least one of the following functions: determining a second carrier for carrying a wake-up signal in a carrier group supported by the same target terminal; receiving the wake-up signal through the second carrier; determining a first carrier for carrying downlink control signaling in the carrier group; and receiving the downlink control signaling through the first carrier.

16. A communication device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method according to any one of claims 1 to 13.

17. A computer-readable medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the method according to any one of claims 1 to 13.

18. A mobile communication system, comprising at least one network side device as described in claim 14 and / or at least one terminal side device as described in claim 15.

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