CN110381518B

CN110381518B - Information detection method, information sending method, terminal and network equipment

Info

Publication number: CN110381518B
Application number: CN201810333143.2A
Authority: CN
Inventors: 姜大洁; 孙鹏; 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-04-13
Filing date: 2018-04-13
Publication date: 2023-01-03
Anticipated expiration: 2038-04-13
Also published as: CN110381518A

Abstract

The invention discloses an information detection method, a sending method, a terminal and network equipment, wherein the method comprises the following steps: detecting an advanced indication signal sent by a target cell group; wherein the target cell group includes: at least partial cells in a tracking area TA list of the terminal; and determining whether to monitor a downlink channel associated with the early indication signal according to the detection result of the early indication signal. The embodiment of the invention can reduce the inter-cell interference and improve the signal to interference plus noise ratio (SINR) of the advanced indication signal.

Description

Information detection method, information sending method, terminal and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information detection method, a transmission method, a terminal, and a network device.

Background

In the fourth generation (4) ^th Generation, 4G) and fifth Generation (5) ^th In the Generation, 5G) communication system, in order To further save power consumption of a blind detection Paging (Paging) Signal or a Physical Downlink Control Channel (PDCCH) in a Discontinuous Reception (DRX) scenario, a concept of an early indication Signal is proposed, the early indication Signal includes a wake-up Signal (WUS) and a Sleep Signal (Go To Sleep Signal (GTS), and the detection of the WUS or the GTS is lower in complexity and more power-saving than the direct blind detection Paging Signal or the PDCCH.

In order to manage the location of the terminal in a Radio Resource Control idle (RRC _ idle) state, a Tracking Area (TA) concept is proposed, and when the terminal is in the RRC _ idle state, the network device can know the Tracking Area where the terminal is located. Further, a plurality of TAs form a TA list (list), and the network device allocates one TA list to each terminal. When the terminal needs to be paged, the network device pages in all cells of the tracking area in which the terminal is registered. Since the cell in the TA list is unclear as to which cell the terminal resides in, when paging the terminal, all cells in the TA list should send an advance indication signal for the idle-state terminal, and the advance indication signal sent by each cell needs to carry cell identification (cell ID) information of each cell, so that sending the advance indication signal by other cells except the cell where the terminal resides is unnecessary, which wastes wireless transmission resources. The terminal only needs to receive the early indication Signal sent by the serving cell in the serving cell, and the early indication signals sent by other cells interfere with the early indication Signal sent by the serving cell, so that the Signal to Interference plus Noise Ratio (SINR) of the early indication Signal of the serving cell is affected, and thus the communication efficiency is greatly affected.

Disclosure of Invention

The embodiment of the invention provides an information detection method, a transmission method, a terminal and network equipment, which aim to solve the problems of resource waste and mutual interference among early indication signals caused by the fact that all cells in a TA list where the terminal is located send the early indication signals to wake up the terminal when the idle terminal is paged.

In a first aspect, an embodiment of the present invention provides an information detection method, which is applied to a terminal side, and includes:

detecting an advanced indication signal sent by a target cell group; wherein the target cell group includes: at least partial cells in a tracking area TA list of the terminal;

and determining whether to monitor a downlink channel associated with the early indication signal according to the detection result of the early indication signal.

In a second aspect, an embodiment of the present invention further provides a terminal, including:

the detection module is used for detecting the advanced indication signal sent by the target cell group; wherein the target cell group includes: at least partial cells in a tracking area TA list of the terminal;

and the processing module is used for determining whether to monitor a downlink channel associated with the early indication signal according to the detection result of the early indication signal.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, and the computer program, when executed by the processor, implements the steps of the information detection method described above.

In a fourth aspect, an embodiment of the present invention provides an information sending method, applied to a network device side, including:

transmitting an advance indication signal related to a target cell group to a terminal; wherein the target cell group includes: at least some of the cells in the tracking area TA list of the terminal.

In a fifth aspect, an embodiment of the present invention provides a network device, including:

a sending module, configured to send an early indication signal related to a target cell group to a terminal; wherein the target cell group includes: at least some of the cells in the tracking area TA list of the terminal.

In a sixth aspect, an embodiment of the present invention further provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor implements the steps of the information sending method when executing the computer program.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and the computer program, when executed by a processor, implements the foregoing information detection method or the foregoing steps of the information sending method.

Therefore, by adopting the technical scheme, the embodiment of the invention can reduce the inter-cell interference, improve the SINR of the advanced indication signal, increase the spatial multiplexing gain, improve the system capacity and further improve the resource utilization rate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Figure 1 shows a time domain diagram of a DRX cycle;

FIG. 2 is a time domain diagram of a DRX cycle in accordance with an embodiment of the present invention;

FIG. 3 is a flow chart of an information detection method according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating TA list partitioning of a terminal according to an embodiment of the present invention;

fig. 5 is a schematic block diagram of a terminal according to an embodiment of the present invention;

FIG. 6 shows a block diagram of a terminal of an embodiment of the invention;

fig. 7 is a flowchart illustrating an information sending method according to an embodiment of the present invention;

FIG. 8 is a block diagram of a network device according to an embodiment of the present invention;

fig. 9 shows a block diagram of a network device according to an embodiment of the invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In 4G and 5G communication systems, a terminal under RRC _ idle needs to detect a paging signal sent by a network device at a preconfigured time, where the specific paging signal process is as follows: blind detecting a PDCCH (physical downlink control channel) corresponding to a Paging Radio Network Temporary Identity (P-RNTI), and if the PDCCH is not detected, ending the detection; if the presence of the PDCCH is detected, a Physical Downlink Shared Channel (PDSCH) indicated by the PDCCH is further detected, and if the detected PDSCH is not a paging signal of the terminal, the detection is terminated. In the RRC _ idle state, the terminal periodically detects paging signals, and power consumption for detecting the PDCCH and the PDSCH each time is large, but the probability of detecting paging signals belonging to the terminal is low, which is not favorable for power saving of the terminal.

In a Discontinuous Reception (DRX) scenario, the basic mechanism of DRX is: a terminal in a connected (RRC _ connected) state is configured with a DRX cycle (cycle), as shown in fig. 1, fig. 1 shows a time domain diagram of the DRX cycle, where the DRX cycle includes an active period (On Duration) in which the terminal monitors and receives a PDCCH, and a dormant period (Opportunity for DRX) in which the terminal does not receive data of a downlink channel to save power consumption. That is, in the time domain, time is divided into successive DRX cycles. Wherein, the DRX start offset (drxStartOffset) is used to indicate the start subframe of the DRX Cycle, and the long DRX Cycle (longDRX-Cycle) is used to indicate how many subframes the long DRX Cycle occupies. Where both parameters are determined by the longDRX-CycleStartOffset field. The active period Timer (On Duration Timer) specifies the number of consecutive subframes (i.e., the number of subframes for which the active period lasts) in which monitoring of the PDCCH is required from the starting subframe of the DRX cycle.

In most cases, after a terminal is scheduled to receive or transmit data in a certain subframe, it is likely to continue to be scheduled in the next several subframes, and if it waits for the next DRX cycle to receive or transmit, the data will cause extra delay. To reduce such delay, the terminal may continue to be in the active period after being scheduled, i.e., may continue to monitor the PDCCH during the configured active period. Specifically, when the terminal is scheduled to initially transmit data, a deactivation timer (drx-inactivity timer) is started or restarted, and the terminal is always in an active period during the time that the timer is not expired. The drx-inactivity timer specifies the number of consecutive subframes that are continuously in an active state after the terminal successfully decodes a PDCCH indicating Uplink (UL) or Downlink (DL) user data to be transmitted first. I.e. the timer is restarted once each time the terminal has the initial data to be transmitted scheduled.

In order to further save the power consumption of blind detection Paging signal or PDCCH in DRX scenario, concepts of WUS and GTS are proposed, wherein WUS and GTS are collectively referred to as advance indication signal. In each DRX period of an idle state or an RRC connected state or in the RRC connected state (DRX OFF), before the terminal blindly detects a Paging signal or a PDCCH, the network equipment firstly transmits a WUS to the terminal, and the terminal wakes up at the corresponding moment to detect the WUS. If the terminal detects the WUS, the terminal blindly detects a Paging signal or a PDCCH; otherwise, the terminal does not blindly detect the Paging signal or the PDCCH and continues to sleep. As shown in fig. 2, when the network device configures a WUS for the terminal, the terminal may detect the WUS on a physical channel, determine that PDCCH detection is required in the next DRX cycle if the WUS is detected, and determine that PDCCH detection is not required in the next DRX cycle if the WUS is not detected, and continue to maintain the sleep state. Or, in each DRX cycle of the idle state or the RRC connected state, before the terminal blindly detects the Paging signal or the PDCCH, the network device may further transmit a GTS to the terminal, and the terminal wakes up at a corresponding time to detect the GTS. If the terminal detects the GTS, the terminal does not blindly detect the Paging signal or the PDCCH and continues to sleep; otherwise, the terminal blindly detects the Paging signal or the PDCCH. Among them, detecting WUS or GTS is less complex and more power efficient than blindly detecting Paging signals or PDCCH. It is worth pointing out that the early indication signal can be used to indicate whether a terminal or a group of terminals needs to detect the downlink channel.

Further, the current designs of the early indication signals (including WUS or GTS) include the following: OOK (on-off keying), sequence (with or without DTX), channel-coded payload (payload) such as PDCCH, etc., sequence + payload (e.g., receiving sequence completes synchronization and then receives payload in a synchronized state).

Here, the advance indication signal may be sent discontinuously (with DTX) or without Discontinuous Transmission (with DTX), taking a sequence as an example. Taking with DTX as an example: when the early indication signal bears the WUS sequence, if the terminal detects the WUS sequence, the terminal determines that PDCCH detection is needed in the next DRX period, and if the WUS sequence is not detected, the terminal determines that the PDCCH is not needed in the next DRX period. Similarly, when the early indication signal carries the GTS sequence, if the GTS sequence is not detected, it is determined that PDCCH detection is required in the next DRX cycle, and if the GTS sequence is detected, it is determined that PDCCH detection is not required in the next DRX cycle. Take without DTX as an example: when the WUS sequence is carried by the early indication signal, if the WUS sequence is detected to be in a first sequence format, the corresponding PDCCH is determined to be required to be detected in the next DRX period, and if the WUS sequence is detected to be in a second sequence format, the corresponding PDCCH is determined not to be required to be detected in the next DRX period, and the terminal continues to sleep. Similarly, when the early indication signal carries the GTS sequence, if it is detected that the GTS sequence is in the third sequence format, it is determined that the corresponding PDCCH needs to be detected in the next DRX cycle, and if it is detected that the GTS sequence is in the fourth sequence format, it is determined that the corresponding PDCCH does not need to be detected in the next DRX cycle, and the terminal continues to sleep.

As shown in fig. 3, an embodiment of the present invention provides an information detection method, applied to a terminal side, including the following steps:

step 31: detecting an advanced indication signal sent by a target cell group; wherein the target cell group includes: at least some of the cells in the tracking area TA list of the terminal.

Alternatively, step 31 may be implemented by, but is not limited to: and receiving an early indication signal sent by the target cell group through the broadcast beam. The manner of transmitting through the broadcast beam may enhance the coverage of the early indication signal.

TA is a concept set up by the system for location management of the terminal, and the core network can know the TA where the terminal is located when the terminal is in an idle state or an inactive (inactive) state. The TA is a cell-level configuration, multiple cells may configure the same TA, and one cell may only belong to one TA. The Tracking Area Identity (TAI) is composed of a Public Land Mobile Network (PLMN) and a Tracking Area Code (TAC), i.e., TAI = PLMN + TAC.

A plurality of TAs form a TA list, as shown in fig. 4, TA list 1 includes TA1, TA2, TA6, TA list 2 includes TA4, TA9, and TA list 3 includes TA10, TA11, TA15. A TA list may be assigned to a terminal, and in order to reduce frequent interactions between the terminal and the network device, the terminal does not need to perform a TA update when moving within its corresponding TA list. In order to ensure the accuracy of the TA list, when the terminal enters a new TA area that is not in the TA list registered by the terminal, a TA update needs to be performed, and a Mobility Management Entity (MME) reallocates a set of TAs to the terminal to form a new TA list, where the newly allocated set of TAs (i.e., the new TA list) may also include some TAs in the original TA list. As shown in fig. 4, TA list 1 and TA list 2 each include TA4, TA5, and TA6. Further, to reduce the paging load, a TA list may only contain a small number of TAs, such as 1 or several TAs.

The target cell group (cell group) is a part or all of cells in a TA list corresponding to the terminal. That is to say, all cells or some cells of the TA list corresponding to the terminal send the same advance indication signal, which is similar to Single-Frequency Network (SFN) transmission, so that the interference problem of the advance indication signal among different cells can be reduced, and the signal-to-interference-plus-noise ratio SINR of the terminal for receiving the advance indication signal is improved. Wherein, non-single frequency network (Non-SFN) transmission refers to: multiple cells or multiple transmitting points transmit their respective signals, so that there is co-channel interference between different cells. SFN transmission refers to: compared with Non-SFN transmission, SFN transmission has no same frequency interference among different cells, and a plurality of signals can improve SINR, transmission quality and coverage effect. According to the embodiment of the invention, the same advanced indication signal is sent by a plurality of cells in the target cell group, so that the SINR, the transmission quality and the coverage effect of the advanced indication signal can be improved.

The determining method of the cell in the target cell group may include, but is not limited to: at least one cell adjacent in geographic position and belonging to the same TA list is determined as a target cell group, for example, three cells covered by one base station form a target cell group. Or all cells or part of cells of a TA in a TA list form a target cell group. In addition, the network device may also set the target cell group during network planning. The different target cell groups in the TA list registered by the terminal may include the same cell or may not include the same cell, that is, different cell groups in one TA list may overlap or may not overlap.

Further, the advanced indication signal corresponds to a partial cell of the TA list of the terminal (the target cell group includes a partial cell in the TA list), and compared with a scenario corresponding to all cells of the TA list (the target cell group includes all cells in the TA list), the spatial multiplexing gain is larger, and the system capacity of the advanced indication signal is also larger.

Step 32: and determining whether to monitor a downlink channel associated with the early indication signal according to the detection result of the early indication signal.

If the indication signal indicates in advance that the terminal needs to monitor the downlink channel, the terminal monitors the downlink channel, wherein the downlink channel includes: and scheduling the common PDCCH of the uplink service or the downlink service, or the PDCCH based on paging, or other downlink channels and the like. Taking PDCCH based on paging as an example, a Control Resource set (CORESET) corresponding to the terminal paging message is consistent on each cell in the target cell group.

Optionally, before step 31, further comprising: the TA list and configuration information of the target cell group are received. Wherein the configuration information includes: at least one of cell identification information (e.g., cell ID) of a cell included in the TA list, identification information (e.g., TA list ID) of the TA list, cell identification information of a cell included in the target cell group, and identification information (e.g., target cell group ID) of the target cell group. That is, the TA list includes which cells, the target cell group includes which cells, and at least one of the TA list ID and the target cell group ID may be configured and notified to the terminal through the network device side.

While various formats of the early indication signal are described above, the embodiments of the present invention will be further described with reference to the early indication signal as a sequence format. When the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is determined according to the configuration information; the sequence parameters include: at least one of a root index (root index), a mask (cover code), a cyclic shift (cyclic shift), a phase offset, an initialization sequence, and a scrambling sequence. Taking the WUS sequence as an example, at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence of the WUS sequence is associated with identification information of a TA list (e.g., TA list ID) or identification information of a target cell group (e.g., cell group ID). Therefore, the terminal can be ensured to detect that the advanced indication signals sent by a plurality of cells in the target cell group are the same, and the interference of different advanced indication signals among the cells is reduced.

Taking the root index μ as an example, suppose the WUS sequence is a ZC sequence d (n) with a length L, and the root index (index) n takes a value of [1,L-1].

The root index (μ) of the ZC sequence and the WUS sequence length L may be related to identification information (cell group ID) of the target cell group, for example: μ = cell group ID mod (L-1) +1. Alternatively, it can be associated with the identification information (TA list ID) of the TA list, such as: μ = TA list ID mod (L-1) +1.

It should be noted that the association relationship between the sequence parameter of the WUS sequence and the identification information of the TA list (e.g., TA list ID) or the identification information of the target cell group (e.g., cell group ID) is only described by taking the root index as an example, and the association method between other sequence parameters and configuration information may be similar to or different from this.

The sequence parameters of the early indication signals sent by different target cell groups are different. The sequence parameters may differ by: at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence is different.

Preferably, there is a time domain offset or a frequency domain offset between transmission resources for different target cell groups to send the early indication signal; wherein the time domain offset or the frequency domain offset is configured or predefined by the network device. The time domain offset or the frequency domain offset may be related to the identification information of the TA list or the identification information of the target cell group. That is, the transmission resources for sending the early indication signal are different for different target cell groups, so that the interference of the early indication signal between different target cell groups can be reduced. The time-frequency domain location of a particular transmission resource may be related to the terminal ID, for example by a hash function associating the terminal ID with the transmission resource that sent the advance indication signal. Therefore, the terminal can calculate the detection position of the advanced indication signal according to the self ID, and related notification signaling can be saved.

Preferably, step 31 is preceded by: and determining target transmission resources of the target cell group for sending the early indication signal according to the terminal identification, wherein the target transmission resources comprise target time domain transmission resources and/or frequency domain transmission resources. Therefore, the terminal can calculate the detection position of the advanced indication signal according to the self ID, and related notification signaling can be saved. The frequency domain resources of the advanced indication signals sent by each cell in the same target cell group may be the same, that is, the frequency domain resources corresponding to each cell in the same target cell group, such as Bandwidth parts (BWPs), are the same, that is, each cell in the same target cell group sends the advanced indication signals on the same frequency domain resources, which may improve the utilization rate of the frequency domain resources and reduce the co-channel interference of the advanced indication signals between different cells. Or, the frequency domain resources of the early indication signals sent by different cells in the same target cell group may be different, and at this time, each cell should also notify the terminal of BWP information of the early indication signal transmission.

Further, a transmission Resource (e.g., resource Element, RE) for a certain cell in the target cell group to send an advance indication signal may be reserved in the local cell and the neighboring cell, and indicated to the terminal, so that the terminal performs rate matching (rate matching).

The WUS is taken as an example, WUS transmission opportunities (WUS interference, WUSO) corresponding to different target cell groups may be staggered in time, and the staggered offset size may be related to the TA list ID or the target cell group ID.

Further, when the early indication signal is in a sequence format, the sequence parameter of the early indication signal may also be used to indicate time domain information where the early indication signal is located, where the time domain information includes: at least one of System Frame Number (SFN) information, subframe (subframe) information, slot (slot) information, and time domain symbol (e.g., OFDM symbol) information. That is, the advance indication signal may carry at least one of the above time domain information by a root index of a sequence, a mask, a cyclic shift, an initialization sequence, a phase offset, a scrambling sequence, or the like. Therefore, the terminal directly reads the relevant time domain information from the advance indication signal sequence without reading the information from an additional Physical Broadcast Channel (PBCH), and the signaling resource can be saved.

In a preferred embodiment, step 32 further includes downlink synchronization of the terminal to each cell in the target cell group, where the downlink synchronization mode refers to, but is not limited to, the following mode:

the first method is to perform downlink synchronization according to the advanced indication signal. This way, transmission resources of the synchronization signal can be saved.

Or, in the second mode, downlink synchronization is performed according to the target synchronization signal, where the target synchronization signal and the advance indication signal are Quasi Co-located (QCL). The method is to add a special target synchronization signal for downlink synchronization of the terminal to each cell in the target cell group. The target synchronization signal and the advance indication signal can be any quasi-co-located type. The quasi co-location type is used to indicate that at least one of doppler frequency offset, doppler spread, average delay, delay spread, and spatial reception parameters is quasi co-located. If the quasi co-location Type of the two is QCL-Type A, the terminal assumes that the Doppler frequency offset, the Doppler spread, the average time delay and the time delay spread of the two are quasi co-located or the same; if the quasi co-location Type of the two is QCL-Type B, the terminal assumes that the Doppler frequency offset and the Doppler spread of the two are quasi co-located or the same; if the quasi co-location Type of the two is QCL-Type C, the terminal assumes that the Doppler frequency offset and the average time delay of the two are quasi co-location or the same; if the quasi co-location Type of the two is QCL-Type D, the terminal assumes that the spatial reception parameters of the two are quasi co-located or the same.

To combat multipath delay, the length of the Cyclic Prefix (CP) of the early indication signal is greater than the length of the Cyclic Prefix of other signals using non-single frequency network transmission modes. For example, the cyclic prefix of the advance indication signal employs an extended cyclic prefix (extended CP).

The target cell group includes cells having the same PO for the terminal, where the PO corresponds to at least one terminal group (UE group), and the terminal is one of the at least one terminal group corresponding to the PO. I.e. a plurality of terminals corresponding to a PO are divided into at least one UE group, in particular into two or more UE groups. Assuming that each PO supports Paging signaling for a maximum of 16 terminals, the advance indication signal corresponding to the PO needs to be designed to instruct all 16 terminals to detect the corresponding Paging PDCCH. If only one of the 16 terminals needs to be paged, the remaining 15 terminals are falsely awakened (or called false alarm) to detect the Paging PDCCH. It should be noted that the larger the number of terminals supported by a PO is, the higher the false alarm probability is, and the higher the false alarm probability is, the extra power consumption will be brought, which affects the power saving effect of the early indication signal. For example, to reduce the false alarm probability, the plurality of terminals corresponding to one PO may be divided into at least one UE group, and particularly into two or more UE groups. For example, 16 terminals corresponding to the same paging opportunity PO are divided into 16 UE groups, and one UE group corresponds to one advance indication signal, so that one advance indication signal can only indicate whether one terminal performs detection of a paging signal in the paging opportunity PO, and when the terminal needs to be paged, the false alarm probability of other terminals is 0.

Preferably, when the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is used to indicate identification information (e.g., UE group ID) of the terminal group. That is, the advance indication signal may indicate the UE group ID by carrying at least one of the above time domain information through a root index of a sequence, a mask, a cyclic shift, an initialization sequence, a phase offset, or a scrambling sequence, etc. It should be noted that if each terminal group includes only one terminal, the UE group ID is the UE ID.

On the other hand, the sequence parameters of the early indication signals of different terminal groups are different. The sequence parameters may differ by: at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence is different.

Preferably, there is a time domain offset or a frequency domain offset between transmission resources of the early indication signals of different terminal groups; wherein the time domain offset or the frequency domain offset is configured or predefined by the network device. Wherein, the time domain offset or the frequency domain offset may be related to the identification information of the terminal group. That is, the transmission resources for sending the early indication signals are different for different terminal groups, so that the interference of the early indication signals among different terminal groups can be reduced. For WUS, for example, WUSOs corresponding to different terminal groups may be staggered in time, and the offset size of the staggering may be related to the UE group ID.

While the above describes some preferred embodiments when the format of the early indication signal is a sequence format, the following embodiments of the present invention describe some embodiments when the format of the early indication signal is a channel format.

When the format of the advance indication signal is a channel format, in the case of WUS, the RNTI of the WUS channel is associated with the identification information of the TA list or the identification information of the target cell group, or the WUS channel uses a specific RNTI, or the scrambling sequence of the channel transmitting the WUS is associated with the identification information of the TA list or the identification information of the target cell group.

In the information detection method of the embodiment of the invention, when the idle terminal or the inactive terminal is paged, the terminal receives the advanced indication signal of the target cell group, and because the cells contained in the target cell group are at least part of the cells in the TA list of the terminal, the spatial multiplexing gain can be increased, the system capacity is improved, and the resource utilization rate is further improved. In addition, the frequency domain resources of the cells in the target cell group for transmitting the advanced indication signal are the same, so that the inter-cell interference can be reduced, and the SINR of the advanced indication signal can be improved.

The above embodiments describe information detection methods in different scenarios, and a terminal corresponding to the method will be further described with reference to the accompanying drawings.

As shown in fig. 5, an embodiment of the present invention. The terminal 500, which can implement the detection of the early indication signal sent by the target cell group in the above embodiments; determining whether to monitor details of a downlink channel method associated with the early indication signal according to a detection result of the early indication signal, and achieving the same effect; wherein the target cell group includes: at least some cells in the tracking area TA list of the terminal, the terminal 500 specifically includes the following functional modules:

a detecting module 510, configured to detect an early indication signal sent by a target cell group; wherein the target cell group includes: at least partial cells in a tracking area TA list of the terminal;

the processing module 520 is configured to determine whether to monitor a downlink channel associated with the early indication signal according to a detection result of the early indication signal.

Wherein, the terminal 500 further comprises:

a receiving module, configured to receive a TA list and configuration information of a target cell group, where the configuration information includes: at least one of cell identification information of a cell included in the TA list, identification information of the TA list, cell identification information of a cell included in the target cell group, and identification information of the target cell group.

When the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is determined according to the configuration information; the sequence parameters include: at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence.

The sequence parameter of the advanced indication signal is used for indicating time domain information of the advanced indication signal, and the time domain information includes at least one of System Frame Number (SFN) information, subframe information, time slot information and time domain symbol information.

The sequence parameters of the early indication signals sent by different target cell groups are different.

The time domain offset or the frequency domain offset exists between transmission resources of different target cell groups for sending the advanced indication signal; the time domain offset or the frequency domain offset is configured or predefined by the network device.

Wherein, the terminal 500 further comprises:

and the first determining submodule is used for determining the target transmission resource of the target cell group for sending the advance indication signal according to the terminal identification.

Wherein, the detection module includes:

and the receiving submodule is used for receiving the advance indication signal sent by the target cell group through the broadcast beam.

Wherein, the terminal 500 further comprises:

the first synchronization module is used for carrying out downlink synchronization according to the advance indication signal; alternatively, the first and second liquid crystal display panels may be,

and the second synchronization module is used for performing downlink synchronization according to the target synchronization signal, wherein the target synchronization signal and the advance indication signal are quasi co-located.

The paging opportunities PO of the target cell group for the terminal are the same, the PO corresponds to at least one terminal group, and the terminal is one of the terminal groups.

When the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is used for indicating the identification information of the terminal group.

Wherein, the sequence parameters of the advanced indication signals of different terminal groups are different.

The transmission resources of the advanced indication signals of different terminal groups have time domain offset or frequency domain offset; the time domain offset or the frequency domain offset is configured or predefined by the network device.

The length of the cyclic prefix of the advanced indication signal is larger than the length of the cyclic prefixes of other signals adopting the non-single frequency network transmission mode.

It is worth pointing out that, when the terminal of the embodiment of the present invention receives the early indication signal of the target cell group, since the cells included in the target cell group are at least part of the cells in the TA list of the terminal, the spatial multiplexing gain can be increased, the system capacity can be increased, and the resource utilization rate can be further improved. In addition, the frequency domain resources of the cells in the target cell group for transmitting the advanced indication signal are the same, so that the inter-cell interference can be reduced, and the SINR of the advanced indication signal can be improved.

To better achieve the above object, further, fig. 6 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 60 includes, but is not limited to: radio frequency unit 61, network module 62, audio output unit 63, input unit 64, sensor 65, display unit 66, user input unit 67, interface unit 68, memory 69, processor 610, and power supply 611. Those skilled in the art will appreciate that the terminal configuration shown in fig. 6 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 61 is configured to detect an advance indication signal sent by a target cell group; wherein the target cell group includes: at least partial cells in a tracking area TA list of the terminal;

a processor 610, configured to determine whether to monitor a downlink channel associated with the early indication signal according to a detection result of the early indication signal;

the terminal of the embodiment of the invention receives the advanced indication signal of the target cell group, and because the cells contained in the target cell group are at least part of the cells in the TA list of the terminal, the space multiplexing gain can be increased, the system capacity is improved, and the resource utilization rate is further improved. In addition, the frequency domain resources of the cells in the target cell group for transmitting the advanced indication signal are the same, so that the inter-cell interference can be reduced, and the SINR of the advanced indication signal can be improved.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 61 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 610; in addition, the uplink data is transmitted to the base station. Typically, the radio frequency unit 61 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 61 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user via the network module 62, such as to assist the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 63 may convert audio data received by the radio frequency unit 61 or the network module 62 or stored in the memory 69 into an audio signal and output as sound. Also, the audio output unit 63 may provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the terminal 60. The audio output unit 63 includes a speaker, a buzzer, a receiver, and the like.

The input unit 64 is used to receive an audio or video signal. The input Unit 64 may include a Graphics Processing Unit (GPU) 641 and a microphone 642, and the Graphics processor 641 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 66. The image frames processed by the graphic processor 641 may be stored in the memory 69 (or other storage medium) or transmitted via the radio frequency unit 61 or the network module 62. The microphone 642 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 61 in case of the phone call mode.

The terminal 60 also includes at least one sensor 65, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that may adjust the brightness of the display panel 661 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 661 and/or a backlight when the terminal 60 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer and tapping), and the like; the sensors 65 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 66 is used to display information input by the user or information provided to the user. The Display unit 66 may include a Display panel 661, and the Display panel 661 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 67 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 67 includes a touch panel 671 and other input devices 672. The touch panel 671, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 671 (e.g., operations by a user on or near the touch panel 671 using a finger, a stylus, or any other suitable object or attachment). The touch panel 671 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 610, receives a command from the processor 610, and executes the command. In addition, the touch panel 671 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 671, the user input unit 67 may also include other input devices 672. In particular, the other input devices 672 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 671 can be overlaid on the display panel 661, and when the touch panel 671 detects a touch operation thereon or nearby, the touch panel 671 can be transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 can provide a corresponding visual output on the display panel 661 according to the type of the touch event. Although the touch panel 671 and the display panel 661 are shown as two separate components in fig. 6 to implement the input and output functions of the terminal, in some embodiments, the touch panel 671 and the display panel 661 can be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 68 is an interface for connecting an external device to the terminal 60. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 68 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the terminal 60 or may be used to transmit data between the terminal 60 and external devices.

The memory 69 may be used to store software programs as well as various data. The memory 69 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 69 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 610 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 69 and calling data stored in the memory 69, thereby performing overall monitoring of the terminal. Processor 610 may include one or more processing units; preferably, the processor 610 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 610.

The terminal 60 may further include a power supply 611 (e.g., a battery) for supplying power to various components, and preferably, the power supply 611 may be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system.

In addition, the terminal 60 includes some functional modules that are not shown, and will not be described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, which includes a processor 610, a memory 69, and a computer program stored in the memory 69 and capable of running on the processor 610, where the computer program, when executed by the processor 610, implements each process of the above-mentioned information detection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile phone (or called a "cellular" phone) and a computer having a mobile terminal, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and exchange languages and/or data with the RAN. For example, personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned information detection method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The above embodiment describes the information detection method of the present invention from the terminal side, and the following embodiment further describes the information transmission method of the network device side with reference to the drawings.

As shown in fig. 7, the information sending method according to the embodiment of the present invention is applied to a network device side, and includes the following steps:

step 71: sending an advance indication signal related to the target cell group to the terminal; wherein the target cell group includes: at least some of the cells in the tracking area TA list of the terminal.

Alternatively, step 71 may include, but is not limited to: an advance indication signal related to the target cell group is transmitted to the terminal through the broadcast beam. The manner of transmitting through the broadcast beam may enhance the coverage of the early indication signal. It is worth pointing out that the same advance indication signal can be sent to the terminal by the higher layer network device controlling the target cell group.

The target cell group (cell group) is a part or all of cells in a TA list corresponding to the terminal. That is, all cells or some cells of the TA list corresponding to the terminal transmit the same advance indication signal, so that the interference problem of the advance indication signal among different cells can be reduced, and the SINR of the terminal for receiving the advance indication signal can be improved. According to the embodiment of the invention, the same advanced indication signal is sent by a plurality of cells in the target cell group, so that the SINR, the transmission quality and the coverage effect of the advanced indication signal can be improved.

The determining method of the cell in the target cell group may include, but is not limited to: at least one cell adjacent to the geographical location and belonging to the same TA list is determined as a target cell group, for example, three cells covered by one base station form a target cell group. In addition, the network device may also set the target cell group during network planning. The different target cell groups in the TA list registered by the terminal may include the same cell or may not include the same cell, that is, different cell groups in one TA list may overlap or may not overlap.

Optionally, step 71 is preceded by: and configuring the TA list and the configuration information of the target cell group for the terminal. Wherein the configuration information includes: at least one of cell identification information (e.g., cell ID) of a cell included in the TA list, identification information (e.g., TA list ID) of the TA list, cell identification information of a cell included in the target cell group, and identification information (e.g., target cell group ID) of the target cell group.

When the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is determined according to the configuration information; the sequence parameters include: at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence. Taking the WUS sequence as an example, at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence of the WUS sequence is associated with identification information of a TA list (e.g., TA list ID) or identification information of a target cell group (e.g., cell group ID). Therefore, the terminal can be ensured to detect that the advanced indication signals sent by a plurality of cells in the target cell group are the same, and the interference of different advanced indication signals among the cells is reduced.

Preferably, there is a time domain offset or a frequency domain offset between transmission resources for different target cell groups to send the early indication signal; wherein the time domain offset or the frequency domain offset is configured or predefined by the network device. The time domain offset or the frequency domain offset may be related to the identification information of the TA list or the identification information of the target cell group. That is, the transmission resources for sending the early indication signal are different for different target cell groups, so that the interference of the early indication signal between different target cell groups can be reduced.

Preferably, step 71 is preceded by: and determining target transmission resources for sending the early indication signals related to the target cell group according to the terminal identification, wherein the target transmission resources comprise target time domain transmission resources and/or frequency domain transmission resources. The frequency domain resources of the target transmission resources of the cells included in the target cell group may be the same or different. The frequency domain resources of the advanced indication signals sent by each cell in the same target cell group may be the same, that is, the frequency domain resources corresponding to each cell in the same target cell group, such as Bandwidth parts (BWPs), are the same, that is, each cell in the same target cell group sends the advanced indication signals on the same frequency domain resources, which may improve the utilization rate of the frequency domain resources and reduce the co-channel interference of the advanced indication signals between different cells. Or, the frequency domain resources of the early indication signals sent by different cells in the same target cell group may be different, and at this time, each cell should also notify the terminal of BWP information of the early indication signal transmission.

When the advanced indication signal is in a sequence format, the sequence parameter of the advanced indication signal is used for indicating time domain information where the advanced indication signal is located, and the time domain information includes at least one of System Frame Number (SFN) information, subframe information, time slot information and time domain symbol information. That is, the advance indication signal may carry at least one of the above time domain information through a root index of a sequence, a mask, a cyclic shift, an initialization sequence, a phase offset, a scrambling sequence, or the like. Therefore, the network equipment directly sends the relevant time domain information by indicating the signal sequence in advance without sending the time domain information by an additional PBCH, and the signaling resource can be saved.

The PO of the cells in the target cell group aiming at the terminal is the same, the PO corresponds to at least one terminal group, and the terminal is one of the at least one terminal group corresponding to the PO. I.e. a plurality of terminals corresponding to a PO are divided into at least one UE group, in particular into two or more UE groups. Preferably, the plurality of terminals corresponding to one PO may be divided into at least one UE group, in particular into two or more UE groups. For example, 16 terminals corresponding to the same paging opportunity PO are divided into 16 UE groups, and one UE group corresponds to one advance indication signal, so that one advance indication signal can only indicate whether one terminal performs paging signal detection in the paging opportunity PO, and when the terminal needs to be paged, the false alarm probability of other terminals is 0, which can reduce the false alarm probability.

Preferably, when the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is used for indicating the identification information of the terminal group. That is, the advance indication signal may indicate the UE group ID by carrying at least one of the above time domain information through a root index of a sequence, a mask, a cyclic shift, an initialization sequence, a phase offset, or a scrambling sequence, etc. It should be noted that if each terminal group includes only one terminal, the UE group ID is the UE ID.

Wherein, the sequence parameters of the early indication signals of different terminal groups are different. The sequence parameters may differ by: at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence is different.

The transmission resources of the advanced indication signals of different terminal groups have time domain offset or frequency domain offset; the time domain offset or the frequency domain offset is configured or predefined by the network device. Wherein, the time domain offset or the frequency domain offset may be related to the identification information of the terminal group.

In order to resist the multipath delay, the length of the cyclic prefix of the advanced indication signal is larger than that of other signals adopting the non-single frequency network transmission mode. For example, the cyclic prefix of the advance indication signal employs extended CP. While the above describes some preferred embodiments when the format of the early indication signal is a sequence format, the following embodiments of the present invention describe some embodiments when the format of the early indication signal is a channel format.

When the format of the advance indication signal is a channel format, in the case of WUS, the RNTI of the WUS channel is associated with the identification information of the TA list or the identification information of the target cell group, or the WUS channel uses a specific RNTI, or the scrambling sequence of the channel on which the WUS is transmitted is associated with the identification information of the TA list or the identification information of the target cell group.

In the information sending method of the embodiment of the present invention, when the idle terminal or the inactive terminal is paged, the network device sends the advance indication signal of the target cell group to the terminal, and since the cells included in the target cell group are at least part of the cells in the TA list of the terminal, the spatial multiplexing gain can be increased, the system capacity can be increased, and the resource utilization rate can be further increased. In addition, the frequency domain resources of the cells in the target cell group for transmitting the advanced indication signal are the same, so that the inter-cell interference can be reduced, and the SINR of the advanced indication signal can be improved.

The above embodiments respectively describe the information sending methods in different scenarios in detail, and the following embodiments further describe the corresponding network devices with reference to the accompanying drawings.

As shown in fig. 8, the network device 800 according to the embodiment of the present invention can implement the details of the method for sending the early indication signal related to the target cell group to the terminal in the foregoing embodiment, and achieve the same effect; wherein the target cell group includes: at least some cells in the tracking area TA list of the terminal, the network device 800 specifically includes the following functional modules:

a sending module 810, configured to send an early indication signal related to a target cell group to a terminal; wherein the target cell group includes: at least some of the cells in the tracking area TA list of the terminal.

Wherein, the network device 800 further includes:

a configuration module, configured to configure a TA list and configuration information of a target cell group for a terminal; wherein the configuration information includes: at least one of cell identification information of a cell included in the TA list, identification information of the TA list, cell identification information of a cell included in the target cell group, and identification information of the target cell group.

Wherein, the network device 800 further includes:

and a second determining module, configured to determine, according to the terminal identifier, a target transmission resource for transmitting an early indication signal related to the target cell group.

Wherein, the sending module 810 includes:

and the sending submodule is used for sending the advance indication signal related to the target cell group to the terminal through the broadcast beam.

It should be noted that, the division of the modules of the network device and the terminal is only a logical division, and all or part of the division may be integrated into one physical entity or may be physically separated in actual implementation. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be integrated into a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a processing element of the apparatus calls and executes the function of the determining module. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

It is worth pointing out that, in the embodiment of the present invention, when the idle terminal or the inactive terminal is paged, the network device sends the advance indication signal of the target cell group to the terminal, and since the cells included in the target cell group are at least part of the cells in the TA list of the terminal, the spatial multiplexing gain can be increased, the system capacity is increased, and the resource utilization rate is further increased. In addition, the frequency domain resources of the cells in the target cell group for transmitting the advanced indication signal are the same, so that the inter-cell interference can be reduced, and the SINR of the advanced indication signal can be improved.

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor implements the steps in the information sending method as described above when executing the computer program. An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the information sending method as described above.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 9, the network device 900 includes: antenna 91, radio frequency device 92, baseband device 93. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the rf device 92 receives information through the antenna 91, and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted and transmits the information to the rf device 92, and the rf device 92 processes the received information and transmits the processed information through the antenna 91.

The above-mentioned frequency band processing means may be located in the baseband means 93, and the method performed by the network device in the above embodiment may be implemented in the baseband means 93, where the baseband means 93 includes a processor 94 and a memory 95.

The baseband device 93 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 9, wherein one of the chips, for example, the processor 94, is connected to the memory 95 to call up the program in the memory 95 to perform the network device operation shown in the above method embodiment.

The baseband device 93 may further include a network interface 96 for exchanging information with the radio frequency device 92, for example, a Common Public Radio Interface (CPRI).

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 95 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchlronous DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 95 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored on the memory 95 and executable on the processor 94, the processor 94 calling the computer program in the memory 95 to execute the method performed by the modules shown in fig. 8.

In particular, the computer program when invoked by the processor 94 is operable to perform: sending an advance indication signal related to the target cell group to the terminal; wherein the target cell group includes: at least some of the cells in the tracking area TA list of the terminal.

In particular, the computer program when invoked by the processor 94 is operable to perform: configuring a TA list and configuration information of a target cell group for a terminal; wherein the configuration information includes: at least one of cell identification information of a cell included in the TA list, identification information of the TA list, cell identification information of a cell included in the target cell group, and identification information of the target cell group.

In particular, the computer program when invoked by the processor 94 is operable to perform: and determining target transmission resources for transmitting the advance indication signal related to the target cell group according to the terminal identification.

In particular, the computer program when invoked by the processor 94 is operable to perform: an advance indication signal related to the target cell group is transmitted to the terminal through the broadcast beam.

The network device may be a Base Transceiver Station (BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, a relay Station or Access point, or a Base Station in a future 5G network, and the like, which is not limited herein.

The network device in the embodiment of the invention sends the advanced indication signal of the target cell group to the terminal when the idle terminal or the non-activated terminal is paged, and because the cells contained in the target cell group are at least part of the cells in the TA list of the terminal, the space multiplexing gain can be increased, the system capacity is improved, and the resource utilization rate is further improved. In addition, the frequency domain resources of the cells in the target cell group for transmitting the advanced indication signal are the same, so that the inter-cell interference can be reduced, and the SINR of the advanced indication signal can be improved.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

The object of the invention is thus also achieved by a program or a set of programs running on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the foregoing is directed to the preferred embodiment of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An information detection method applied to a terminal side, comprising:

detecting an advanced indication signal sent by a target cell group; wherein the target cell group comprises: at least part of cells in a tracking area TA list of the terminal;

determining whether to monitor a downlink channel associated with the early indication signal according to the detection result of the early indication signal;

before the step of detecting the early indication signal sent by the target cell group, the method further includes:

receiving the TA list and configuration information of the target cell group, wherein the configuration information comprises: at least one of cell identification information of a cell included in a TA list, identification information of the TA list, cell identification information of a cell included in the target cell group, and identification information of the target cell group.

2. The information detection method according to claim 1, wherein when the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is determined according to the configuration information; the sequence parameters include: at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence.

3. The information detecting method of claim 2, wherein the sequence parameter of the early indication signal is used to indicate time domain information of the early indication signal, and the time domain information comprises at least one of System Frame Number (SFN) information, subframe information, time slot information and time domain symbol information.

4. The information detecting method of claim 2, wherein the sequence parameters of the early indication signals transmitted by different target cell groups are different.

5. The information detection method of claim 1, wherein there is a time domain offset or a frequency domain offset between transmission resources for sending the early indication signal by different target cell groups; the time domain offset or the frequency domain offset is configured or predefined by a network device.

6. The information detecting method according to claim 1, wherein the step of detecting the early indication signal transmitted by the target cell group further comprises:

and determining target transmission resources of the target cell group for sending the early indication signal according to the terminal identification.

7. The information detecting method according to claim 1, wherein the step of detecting the early indication signal transmitted by the target cell group comprises:

and receiving an early indication signal sent by the target cell group through a broadcast beam.

8. The information detecting method according to claim 1, wherein before the step of determining whether to monitor a downlink channel associated with the early indication signal according to the detection result of the early indication signal, the method further comprises:

performing downlink synchronization according to the advanced indication signal; alternatively, the first and second electrodes may be,

and performing downlink synchronization according to a target synchronization signal, wherein the target synchronization signal and the advance indication signal are quasi co-located.

9. The information detecting method of claim 1, wherein the cells included in the target cell group have the same Paging Opportunities (POs) for the terminals, the POs correspond to at least one terminal group, and the terminal is one of the terminal groups.

10. The information detecting method according to claim 9, wherein when the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is used for indicating the identification information of the terminal group.

11. The information detecting method of claim 10, wherein the sequence parameters of the early indication signals of different terminal groups are different.

12. The information detecting method according to claim 9, wherein there is a time domain offset or a frequency domain offset between transmission resources of the early indication signals of different terminal groups; the time domain offset or the frequency domain offset is configured or predefined by a network device.

13. The information detection method according to claim 1, wherein the length of the cyclic prefix of the early indication signal is greater than the length of the cyclic prefix of other signals employing non-single frequency network transmission mode.

14. A terminal, comprising:

the detection module is used for detecting an early indication signal sent by a target cell group; wherein the target cell group comprises: at least part of cells in a tracking area TA list of the terminal;

the processing module is used for determining whether to monitor a downlink channel associated with the advanced indication signal according to the detection result of the advanced indication signal;

the terminal further comprises:

a receiving module, configured to receive the TA list and configuration information of the target cell group, where the configuration information includes: at least one of cell identification information of a cell included in a TA list, identification information of the TA list, cell identification information of a cell included in the target cell group, and identification information of the target cell group.

15. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the information detection method according to any one of claims 1 to 13.

16. An information sending method is applied to a network device side, and is characterized by comprising the following steps:

sending an advance indication signal related to a target cell group to a terminal, so that the terminal determines whether to monitor a downlink channel associated with the advance indication signal according to a detection result of the advance indication signal; wherein the target cell group comprises: at least part of cells in a tracking area TA list of the terminal;

before the step of sending the early indication signal related to the target cell group to the terminal, the method further includes:

configuring the TA list and the configuration information of the target cell group for the terminal; wherein the configuration information comprises: at least one of cell identification information of cells included in a TA list, identification information of the TA list, cell identification information of cells included in the target cell group, and identification information of the target cell group.

17. The method according to claim 16, wherein when the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is determined according to the configuration information; the sequence parameters include: at least one of a root index, a mask, a cyclic shift, a phase offset, an initialization sequence, and a scrambling sequence.

18. The method as claimed in claim 17, wherein the sequence parameter of the early indicator signal is used to indicate time domain information of the early indicator signal, and the time domain information includes at least one of System Frame Number (SFN) information, subframe information, time slot information and time domain symbol information.

19. The method of claim 17, wherein the sequence parameters of the early indication signals transmitted by different target cell groups are different.

20. The information transmitting method of claim 16, wherein there is a time domain offset or a frequency domain offset between transmission resources for transmitting the early indication signal by different target cell groups; the time domain offset or the frequency domain offset is configured or predefined by the network device.

21. The method of claim 16, wherein before the step of sending the early indication signal related to the target cell group to the terminal, the method further comprises:

and determining target transmission resources for transmitting the early indication signals related to the target cell group according to the terminal identification.

22. The method of claim 16, wherein the step of transmitting the early indication signal associated with the target cell group to the terminal comprises:

transmitting the advance indication signal related to the target cell group to the terminal through a broadcast beam.

23. The method as claimed in claim 16, wherein the cells included in the target cell group have the same paging opportunities PO for the terminals, the POs corresponds to at least one terminal group, and the terminal is one of the terminal groups.

24. The method of claim 23, wherein when the format of the early indication signal is a sequence format, the sequence parameter of the early indication signal is used to indicate the identification information of the terminal group.

25. The method of claim 24, wherein the sequence parameters of the early indication signals of different terminal groups are different.

26. The information transmitting method of claim 23, wherein there is a time domain offset or a frequency domain offset between transmission resources of the early indication signals of different terminal groups; the time domain offset or the frequency domain offset is configured or predefined by a network device.

27. The method according to claim 16, wherein the length of the cyclic prefix of the early indication signal is greater than the length of the cyclic prefix of other signals using non-single frequency network transmission mode.

28. A network device, comprising:

a sending module, configured to send an early indication signal related to a target cell group to a terminal, so that the terminal determines, according to a detection result of the early indication signal, whether to monitor a downlink channel associated with the early indication signal; wherein the target cell group comprises: at least part of cells in a tracking area TA list of the terminal;

the network device further includes:

a configuration module, configured to configure the TA list and the configuration information of the target cell group for the terminal; wherein the configuration information comprises: at least one of cell identification information of a cell included in a TA list, identification information of the TA list, cell identification information of a cell included in the target cell group, and identification information of the target cell group.

29. A network device comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the information transmission method according to any one of claims 16 to 27 when executing the computer program.

30. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the information detection method of any one of claims 1 to 13 or the steps of the information transmission method of any one of claims 16 to 27.