WO2019095439A1

WO2019095439A1 - Received signal strength indication measurement method and terminal device

Info

Publication number: WO2019095439A1
Application number: PCT/CN2017/113987
Authority: WO
Inventors: 唐海; 沈嘉
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-11-17
Filing date: 2017-11-30
Publication date: 2019-05-23

Abstract

Embodiments of the present application provide an RSSI measurement method and device. In terms of RSSI measurement, a more flexible frame structure can be matched. The method comprises: determining a second time domain symbol set for RSSI measurement according to a first time domain symbol set occupied by a first downlink signal; and performing the RSSI measurement on the second time domain symbol set.

Description

Received signal strength indication measuring method and terminal device

This application claims priority to PCT Patent Application No. PCT/CN2017/111704, entitled "Received Signal Strength Indication Measurement Method and Terminal Equipment", filed on November 17, 2017, the entire contents of which is hereby incorporated by reference. This is incorporated herein by reference.

Technical field

The present application relates to the field of communications, and in particular, to a Received Signal Strength Indication (RSSI) measurement method and a terminal device.

Background technique

In the Long Term Evolution (LTE), the terminal device performs RSSI measurement on the downlink signal sent by the base station, and can be used to determine the link quality. The terminal device can perform RSSI measurement on the preset or configured symbol. .

In the New Radio (NR) system, the frame structure is more flexible.

Therefore, how to match the more flexible frame structure in RSSI measurement is an urgent problem to be solved.

Summary of the invention

The embodiment of the present application provides an RSSI measurement method and device, which can match a flexible frame structure in terms of RSSI measurement.

In a first aspect, an RSSI measurement method is provided, comprising:

Determining, according to the first time domain symbol set occupied by the first downlink signal, a second time domain symbol set for performing RSSI measurement;

On the second set of time domain symbols, RSSI measurements are taken.

Therefore, in the embodiment of the present application, the terminal device determines, according to the first time domain symbol set occupied by the first downlink signal, a second time domain symbol set for performing RSSI measurement, which may be more flexible in RSSI measurement. Frame structure.

With reference to the first aspect, in a possible implementation manner of the first aspect, the first downlink signal is a synchronization signal block.

In combination with the first aspect or any of the possible implementations described above, another possibility in the first aspect And determining, according to the first time domain symbol set occupied by the first downlink signal, a second time domain symbol set for performing RSSI measurement, including:

A second set of time domain symbols is determined based on a time domain location of the symbols in the first time domain symbol set in the time slot.

With reference to the first aspect, or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, determining, according to the time domain position of the symbol in the first time domain symbol set in the time slot, determining the second A collection of time domain symbols, including:

The time domain symbols of all or part of the time domain locations other than the time domain location occupied by the first time domain symbol set in the time slot are determined as symbols in the second time domain symbol set.

In conjunction with the first aspect or any of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, the method further includes:

And receiving, by the network device, the first indication information, where the first indication information is used to indicate that the time slot includes 0 transition points, where the transition point is a transition point from the downlink symbol to the uplink symbol;

Wherein, when the time slot includes 0 conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 symbols of unknown uplink and downlink.

With reference to the first aspect, or any one of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the time slot in which the first time domain symbol is located includes a conversion point that has 0 transition points. Sex.

In conjunction with the first aspect or any of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the first downlink signal occupies the last time domain symbol of the 14 time domain symbols included in the time slot. .

When the first time domain symbol set has a time domain symbol that is not occupied by the first downlink signal before the last time domain symbol in the time slot, the last symbol in the time slot is not occupied by the first downlink signal. All or part of the time domain symbol, determined as a symbol in the second time domain symbol set.

Receiving, by the network device, second indication information, where the second indication information is used to indicate that the time slot includes one transition point, where the transition point is a transition point from the downlink symbol to the uplink symbol;

Wherein, when the time slot includes one switching point, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink, and the time slot is at least Includes an unknown symbol for the uplink and the downlink, and an upstream or downstream symbol.

In conjunction with the first aspect or any of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the time slot in which the first time domain symbol is located includes a conversion point having 0 transition points and 1 Two possibilities for switching points, where the transition point is a transition point from the downstream symbol to the upstream symbol;

Wherein, when the time slot includes 0 conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 symbols of unknown uplink and downlink;

When the time slot includes 1 transition point, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink; and the time slot includes at least one Unknown symbols on the upstream and downstream, and an up or down symbol.

In conjunction with the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the first downlink signal occupies the last symbol of the first seven symbols of the 14 symbols; The first downlink signal does not occupy the last symbol of the 14 symbols.

The first time domain symbol set occupies at least one symbol of the first 7 symbols of the slot, and among the first 7 symbols, the last symbol of the at least one symbol precedes the time domain symbol not occupied by the first downlink signal All or part of the time domain symbols that are not occupied by the first downlink signal before the last symbol in the first seven symbols are determined as symbols in the second time domain symbol set.

The first time domain symbol set occupies at least one symbol of the last 7 symbols of the slot, and in the last 7 symbols, the last symbol of the at least one symbol precedes the time domain symbol not occupied by the first downlink signal All or part of the time domain symbols that are not occupied by the first downlink signal before the last symbol of the last 7 symbols are determined as symbols in the second time domain symbol set.

Receiving third indication information sent by the network device, where the third indication information is used to indicate that the time slot includes 2 Transition point, the transition point is the transition point from the downstream symbol to the upstream symbol;

Wherein, when the time slot includes two conversion points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, and there are 0 or more symbols of uplink and downlink unknown in the middle; For the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, there are 0 or more upstream and downstream unknown symbols in the middle.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the time slot in which the first time domain symbol is located includes a conversion point having 0 conversion points, and 1 Conversion and two conversion points three possibilities, wherein the conversion point is a transition point from the downstream symbol to the upstream symbol;

When the time slot includes 1 transition point, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink; and the time slot includes at least one Unknown symbols on the uplink and downlink, and an up or down symbol;

When the time slot includes 2 transition points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, there are 0 or more symbols of uplink and downlink unknown in the middle; 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, with 0 or more upstream and downstream unknown symbols in between.

In conjunction with the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the first downlink signal does not occupy the last symbol of the first seven symbols of the 14 symbols, and The last symbol of 14 symbols is not occupied.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the performing the RSSI measurement on the second time domain symbol set includes:

The RSSI measurement is performed by combining the second time domain set and the first time domain symbol set.

Determining a third time domain symbol set, where the third time domain symbol set includes first N time domain symbols of a time slot occupied by the first downlink signal;

Performing RSSI measurements on the second set of time domain symbols, including:

The RSSI measurement is performed by combining the second time domain set and the third time domain symbol set.

And determining, according to the time slot in which the first time domain symbol set is located, the second time domain symbol set used for performing RSSI measurement.

With reference to the first aspect, or any one of the foregoing possible implementation manners, in another possible implementation manner of the foregoing aspect, the second time domain symbol set includes: a time slot in which the first time domain symbol set is located The first N time domain symbols.

In conjunction with the first aspect or any of the possible implementations described above, in another possible implementation of the first aspect, the N is equal to 1, 2, 3, or 4.

In a second aspect, a terminal device is provided for performing the method of any of the above first aspect or any of the possible implementations of the first aspect. In particular, the terminal device comprises functional modules for performing the method of the first aspect or any of the possible implementations of the first aspect described above.

In a third aspect, a terminal device is provided, including a processor, a memory, and a transceiver. The processor, the memory, and the transceiver communicate with each other through an internal connection path, transmitting control and/or data signals, such that the terminal device performs any of the above first aspect or any possible implementation of the first aspect The method in .

In a fourth aspect, a computer readable medium is provided for storing a computer program, the computer program comprising instructions for performing the above method or any possible implementation.

In a fifth aspect, a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of the above method or any possible implementation.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present application. For the embodiments, those skilled in the art can obtain other drawings according to the drawings without any creative work.

FIG. 1 is a schematic diagram of a wireless communication system in accordance with an embodiment of the present application.

FIG. 2 is a schematic flowchart of an RSSI measurement method according to an embodiment of the present application.

FIG. 3 is a schematic flowchart of a synchronization signal block distribution according to an embodiment of the present application.

4 is a schematic flow chart of a synchronization signal block distribution according to an embodiment of the present application.

FIG. 5 is a schematic block diagram of a terminal device according to an embodiment of the present application.

FIG. 6 is a schematic block diagram of a system chip in accordance with an embodiment of the present application.

FIG. 7 is a schematic block diagram of a communication device in accordance with an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application are described in conjunction with the accompanying drawings in the embodiments of the present application. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The technical solution of the embodiment of the present application can be applied to various communication systems, for example, Global System of Mobile communication ("GSM") system, Code Division Multiple Access (CDMA). System, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service ("GPRS"), Long Term Evolution (Long Term Evolution, referred to as "Long Term Evolution" LTE") system, LTE Frequency Division Duplex ("FDD") system, LTE Time Division Duplex ("TDD"), Universal Mobile Telecommunication System (Universal Mobile Telecommunication System) It is a "UMTS"), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, or a future 5G system.

FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 can include a network device 110. Network device 100 can be a device that communicates with a terminal device. Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area. Optionally, the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system. (Evolutional Node B, eNB or eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110. Terminal device 120 can be mobile or fixed. Optionally, the terminal device 120 It can be referred to as an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. . The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or terminal devices in future evolved PLMNs, and the like.

Optionally, device to device (D2D) communication can be performed between the terminal devices 120.

Alternatively, the 5G system or network may also be referred to as a New Radio (NR) system or network.

FIG. 1 exemplarily shows one network device and two terminal devices. Alternatively, the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.

Optionally, the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

FIG. 2 is a schematic flowchart of an RSSI measurement method 200 according to an embodiment of the present application. The method 200 is optionally applicable to the system shown in FIG. 1, but is not limited thereto. The method 200 can optionally be performed by a terminal device. The method 200 includes at least some of the following.

In 210, the terminal device determines a second time domain symbol set for performing RSSI measurement according to the first time domain symbol set occupied by the first downlink signal.

Optionally, the first downlink signal is a periodically transmitted signal.

Optionally, the first time domain symbol set includes at least one symbol, and the symbols in the first time domain symbol set may be consecutive or non-contiguous symbols.

Optionally, the second time domain symbol set may include at least one symbol, the second time domain symbol The symbols in the set can be continuous or non-contiguous symbols.

Optionally, the first time domain symbol set and the second time domain symbol set do not have a symbol overlap.

Optionally, the first set of time domain symbols may be a periodic set of symbols.

Optionally, the second set of time domain symbols may be a periodic set of symbols.

Optionally, the first time domain symbol set may be a time domain symbol set occupied by the first downlink signal currently detected by the terminal device, or may be estimated according to the currently detected first downlink signal. The set of time domain symbols occupied by the first downlink signal transmitted by other locations (eg, according to the first downlink signal is estimated by periodic transmission).

Optionally, the first downlink signal is a synchronization signal block (Synchronization Signal Block SSB or SS Block).

The Synchronous Signal Block (SS Block or SSB) uses periodic transmission. Within the SS Block period, the SS burst set of a specific frequency point can be limited to the 5 ms time window, and the maximum SS Block number. For L, where

For the frequency domain within 3 GHz, L=4,

For the frequency domain range of 3 GHz to 6 GHz, L=8,

L=64 in the frequency domain corresponding to 6 GHz to 52.6 GHz.

The slot distribution of the SS Block may be as shown in FIG. 3 for different subcarrier spacings and different working frequency bands in a time window of 5 ms, wherein each line-filled block may be one time slot.

The first row of FIG. 3 shows the slot distribution of the SSBlock in the case where the subcarrier spacing is 15 kHz and L=4. The second row of Fig. 3 shows the slot distribution of the SS Block in the case where the subcarrier spacing is 15 kHz and L = 8. The third row of Fig. 3 shows the slot distribution of the SS Block in the case where the subcarrier spacing is 30 kHz and L = 4. The fourth row of Fig. 3 shows the slot distribution of the SS Block in the case where the subcarrier spacing is 30 kHz and L = 8. The fifth row of Fig. 3 shows the slot distribution of the SS Block in the case where the subcarrier spacing is 240 kHz and L = 64.

Figure 4 shows the pattern distribution of sync signal blocks in time slots at subcarrier intervals of 15 kHz, 30 kHz, 120 kHz and 240 kHz. Wherein, in FIG. 4, each block may represent a symbol (also referred to as a time domain symbol, a symbol position or a time domain symbol position, etc.), and the first block of each line represents the first symbol of a time slot, continuous The 14 symbols are 1 time slot. The four symbols filled with consecutive identical lines can be considered as a candidate temporal position of the sync block.

Wherein, the first row of FIG. 4 shows that in the case of a subcarrier spacing of 15 kHz, within the time slot The pattern distribution of the sync signal block. The second and third rows of Fig. 4 show the pattern distribution of the sync signal blocks in the slot in the case where the subcarrier spacing is 30 kHz. The fourth row of Fig. 4 shows the pattern distribution of the sync signal blocks in the slot in the case where the subcarrier spacing is 120 kHz. The fifth row of Fig. 4 shows the pattern distribution of the sync signal block in the slot in the case where the subcarrier spacing is 240 kHz.

As shown in FIG. 4, at least 1 or 2 symbols are reserved for downlink control at the beginning of 14 symbols at subcarrier intervals of 15 kHz and 30 kHz, and at least two symbols are reserved at the end for, for example, guard interval or uplink control. .

At a subcarrier spacing of 120 kHz, at least 2 symbols are reserved for downlink control at the beginning of 14 symbols, and at least two symbols are reserved at the end for, for example, guard interval or uplink control.

At a subcarrier spacing of 240 kHz, spanning two consecutive time slots, at least 4 symbols are reserved for downlink control at the beginning of the first time slot, and at least 4 symbols are reserved at the end of the second time slot for For example, guard interval or uplink control.

It should be understood that the first downlink signal may also be other signals, for example, a signal carrying system information, a physical downlink control channel (Physical Downlink Control), or a physical downlink shared channel (PDSCH). This is not specifically limited.

Optionally, the first set of symbols mentioned in the embodiments of the present application may include symbols of one or more time positions.

Alternatively, different time positions may be transmitted using different beams. Multiple symbols at the same time position are symbols occupied by a single beam scan.

In 220, the terminal device performs RSSI measurement on the second set of time domain symbols.

Optionally, after determining the second time domain symbol set, the terminal device may perform RSSI measurement on the second time domain set. Further, the terminal device may perform RSSI measurement on the first time domain set.

Specifically, the RSSI measurement may be performed in conjunction with the first time domain symbol set and the second time domain symbol set. It should be understood that, in the embodiment of the present application, the determined second time domain symbol set may not perform the RSSI measurement, but performs other processing, which is not specifically limited in this embodiment of the present application.

Optionally, the determining, by the terminal device, the second time domain symbol set used for the RSSI measurement according to the first time domain symbol set occupied by the first downlink signal may be specifically: according to the first time domain symbol set A time slot, the second set of time domain symbols used to make an RSSI measurement.

Specifically, the terminal device may determine a time slot in which the symbol occupied by the first downlink signal is located, where From the time slot, a second set of time domain symbols for performing RSSI measurements is determined.

The first N symbols in the time slot in which the symbol occupied by the first downlink signal is located may be determined as the symbol in the second time domain symbol set.

Optionally, the N is a positive integer and the N can be 1, 2, 3 or 4. Of course, N can also be 5, 6, 7, 8, 9, 10, 11, 12, 13 or 14.

Optionally, the terminal device determines the second time domain symbol set according to the time domain position of the symbol in the first time domain symbol set in the time slot.

In order to understand the present application more clearly, how to determine the second time domain symbol set according to the time domain position of the symbol in the first time domain symbol set in the following is described in detail below, wherein before the description, the present The application embodiment will explain the conversion points that will be used later.

There may be up to three conversion points, one conversion point and two conversion points for a time slot containing 14 symbols, wherein the conversion point may be a transition point from a downlink symbol to an uplink symbol. The network device may configure the number of transition points existing in the time slot used by the terminal device, where the terminal device may receive the configuration information before determining the second time domain symbol set for performing RSSI measurement, or may be used for determining. After the second time domain symbol set of the RSSI measurement is performed, the configuration information is received; or, the network device does not configure the number of transition points existing in the time slot used by the terminal device.

Wherein, when the time slot includes 0 conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 uplink and downlink unknown symbols.

When the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of the uplink and the downlink; The slot includes at least one symbol that is unknown in the uplink and downlink, and an upstream or downstream symbol.

When the time slot includes two of the transition points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one uplink symbol, and there are 0 or more uplink and downlink unknown symbols in the middle; For the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, there are 0 or more upstream and downstream unknown symbols in the middle.

The uplink and downlink unknown symbols may be temporarily unknown to the terminal device, and the network device may perform uplink or downlink symbol configuration on the uplink and downlink symbols.

According to the above transition point setting, when there are 0 transition points in the time slot, if it is determined that one or more symbol positions in the time slot are transmitted with the first downlink signal, it is known that the other symbol positions of the time slot are also downlink. Signal position.

When there is one transition point in the time slot, if it is determined that one or more symbol positions are transmitted with the first downlink signal in the time slot, and there is no previous one of the one or more symbol positions When the symbol position occupied by the first downlink signal is used, it can be inferred that the symbol position not occupied by the first downlink signal before the last symbol position is also the downlink symbol position.

When there are 2 transition points in the time slot, if at least one symbol of the first 7 symbols of the time slot is determined to be transmitted with the first downlink signal, and in the first 7 symbols, the last of the at least one symbol When a symbol has a time domain symbol that is not occupied by the first downlink signal, it may be presumed that the last symbol occupied by the first uplink signal in the first seven symbols is not preceded by the first symbol. The time domain symbol occupied by the downlink signal is also the downlink symbol position.

When there are 2 transition points in the time slot, if at least one symbol of the last 7 symbols of the time slot is determined to be transmitted with the first downlink signal, and in the last 7 symbols, the last of the at least one symbol When a symbol has a time domain symbol that is not occupied by the first downlink signal, it may be presumed that the last symbol occupied by the first uplink signal in the last seven symbols is not preceded by the first symbol. The time domain symbol occupied by the downlink signal is also the downlink symbol position.

Optionally, there may be up to three conversion points, one conversion point and two conversion points for the time slot containing 14 symbols, wherein the network device may configure the conversion included by the time slot used by the terminal device. The number of points, or the terminal device directly assumes that the number of transition points existing in the time slot is two, or that the terminal device can estimate the possibility of the number of transition points included in the time slot according to the slot position of the first downlink signal.

Specifically, if the first downlink signal occupies the last symbol of 14 symbols, it is considered that there are at most 0 transition points in the time slot.

If the first downlink signal occupies the last symbol of the first 7 symbols and does not occupy the last symbol of 14 symbols, it can be considered that there is at most one transition point in the time slot.

If the first downlink signal does not occupy the last symbol of the first 7 symbols and does not occupy the last symbol of the 14 symbols, it can be considered that there are at most 2 transition points in the time slot.

For example, as shown in the first row of FIG. 4, in a scenario where the subcarrier spacing is 15 kHz, assuming that a sync signal block is detected at the first and/or second candidate locations, the terminal device can speculate that the time slot includes The number of conversion points is two.

As shown in the second row of FIG. 4, in a scenario where the subcarrier spacing is 30 kHz, assuming that the sync signal block is detected at the first candidate position and the sync signal block is not detected at the second candidate position, the terminal device may It is estimated that the number of transition points included in the slot is one. Assume in the second When the candidate position detects the sync signal block and no sync signal block is detected at the first candidate position, the terminal device can estimate that the number of transition points included in the slot is two. Assuming that the sync signal block is detected at the first candidate position and the sync signal block is detected at the second candidate position, the terminal device can estimate that the number of transition points included in the slot is one.

As shown in the fifth row of FIG. 4, in the scenario where the subcarrier spacing is 240 kHz, assuming that the sync signal block is detected at the second candidate position, the terminal device can estimate that the number of transition points included in the slot is zero.

Based on the above description, how the terminal device determines the second time domain symbol set for performing RSSI measurement will be described below.

In an implementation manner, the terminal device determines, as the second time domain symbol set, the time domain symbols of all or part of the time domain locations except the time domain location occupied by the first time domain symbol set in the time slot. Symbol in .

Optionally, the terminal device receives the first indication information sent by the network device, where the first indication information is used to indicate that the time slot includes 0 transition points.

Optionally, the time slot in which the time slot in which the first time domain symbol is located includes a probability that there are 0 transition points. Optionally, in this case, the first downlink signal occupies the last time domain symbol of the 14 time domain symbols included in the time slot.

In another implementation manner, when the first time domain symbol set has a time domain symbol that is not occupied by the first downlink signal before the last time domain symbol in the time slot, All or part of the time domain symbols that were not occupied by the first downlink signal before the last symbol are determined as symbols in the second time domain symbol set.

Optionally, the terminal device receives the second indication information sent by the network device, where the second indication information is used to indicate that the time slot includes one switching point.

Optionally, the time slot included in the time slot in which the first time domain symbol is included has two possibilities of 0 transition points and 1 transition point.

Optionally, in this case, the first downlink signal occupies the last symbol of the first 7 symbols of the 14 symbols, and/or the first symbol of the last 7 symbols is occupied; And the first downlink signal does not occupy the last symbol of the 14 symbols.

In another implementation, the first time domain symbol set occupies at least one symbol of the first 7 symbols of the time slot, and in the first 7 symbols, the last symbol of the at least one symbol exists before When the time domain symbol is not occupied by the first downlink signal, the last of the first 7 symbols All or part of the time domain symbols of a symbol that were not previously occupied by the first downlink signal are determined as symbols in the second time domain symbol set.

Optionally, the terminal device receives the third indication information that is sent by the network device, where the third indication information is used to indicate that the time slot includes two transition points.

Optionally, the time slot in which the first time domain symbol is located includes a conversion point of 0 conversion points, 1 conversion and 2 conversion points, wherein the conversion point is from a downlink symbol to an uplink symbol. Conversion point. Optionally, in this case, the first downlink signal does not occupy the last symbol of the first 7 symbols in the 14 symbols, does not occupy the first symbol of the last 7 symbols, and does not occupy the 14 The last symbol of the symbol.

In another implementation, the first time domain symbol set occupies at least one symbol of the last 7 symbols of the time slot, and in the last 7 symbols, the last symbol of the at least one symbol exists before When the time domain symbol is not occupied by the first downlink signal, the terminal device determines all or part of the time domain symbols of the last 7 symbols that are not occupied by the first downlink signal before the last symbol. A symbol in a set of two time domain symbols.

Optionally, the time slot included in the time slot in which the first time domain symbol is included includes three conversion points, one conversion and two conversion points.

Optionally, in this case, the first downlink signal does not occupy the last symbol of the first 7 symbols in the 14 symbols, and does not occupy the first symbol of the last 7 symbols, and does not occupy the first symbol. The last symbol of the 14 symbols.

In order to more clearly understand the present application, how to determine the symbols for performing RSSI measurements will be described below by way of example with reference to FIG.

Referring to the first row shown in FIG. 4, the case where the subcarrier spacing is 15 kHz is taken as an example. Assuming that the sync signal block is detected at the first candidate position, there are the following three cases:

1) If the network device indicates that the transition point is 0, it is considered that other symbols in the time slot occupied by the sync signal block will also send a downlink signal, which can be used for RSSI measurement;

2) If the network device indicates that the transition point is one, the first and second symbols of the first seven symbols in the slot occupied by the sync signal block are also considered to be sent downlink signals, which can be used for RSSI measurement;

3) If the network device indicates that the conversion point is 2 or the network device is not received, the number of conversion points For the indication information of the quantity, it is considered that the first and second symbols of the first 7 symbols in the time slot occupied by the synchronization signal block will also send a downlink signal, which can be used for RSSI measurement.

Referring to the first row shown in FIG. 4, the case where the subcarrier spacing is 15 kHz is taken as an example. Assuming that the synchronization signal block is detected at the second candidate location, there are the following three cases:

2) If the network device indicates that the transition point is one, the first symbol and the first seven symbols of the last seven symbols in the slot occupied by the sync signal block are also considered to be sent downlink signals, which can be used for RSSI measurement;

3) If the network device indicates that the conversion point is 2 or does not receive the indication information about the number of conversion points of the network device, it is considered that the first symbol of the last 7 symbols in the time slot occupied by the synchronization signal block is also to be sent downstream. Signals can be used for RSSI measurements.

Referring to the first row shown in FIG. 4, the case where the subcarrier spacing is 15 kHz is taken as an example. Assuming that the sync signal block is detected at the first and second candidate positions, there are the following three cases:

2) If the network device indicates that the transition point is one, the first symbol of the last seven symbols in the slot occupied by the sync signal block and the first, second and seventh of the first seven symbols are considered The symbol will also send a downlink signal that can be used for RSSI measurements;

3) If the network device indicates that the conversion point is 2 or does not receive the indication information about the number of conversion points of the network device, the first symbol and the first 7 symbols of the last 7 symbols in the slot occupied by the synchronization signal block are considered The first and second symbols of the symbol will also be sent downstream signals, which can be used for RSSI measurements.

Referring to the second row shown in FIG. 4, the case where the subcarrier spacing is 30 kHz is taken as an example. Assuming that the synchronization signal block is detected at the first candidate location, there are the following three cases:

2) If the network device indicates that the number of transition points is one or does not indicate the number of transition points, then the first four symbols in the time slot occupied by the sync signal block are also considered to be transmitting downlink signals, which can be used for RSSI measurement.

Referring to the second row shown in FIG. 4, the case where the subcarrier spacing is 30 kHz is taken as an example. Assuming that a sync block is detected at the second candidate position, there are three cases:

Referring to the second row shown in FIG. 4, the case where the subcarrier spacing is 30 kHz is taken as an example. Assuming that the sync signal block is detected at the first and second candidate positions, there are the following three cases:

Referring to the fifth row shown in FIG. 4, the case where the subcarrier spacing is 240 kHz is taken as an example. Assuming that the synchronization signal block is detected at the second candidate location, there is one of the following cases:

1) If the network device indicates that the transition point is 0 or does not receive the indication information about the number of transition points of the network device, it is considered that other symbols in the time slot occupied by the sync signal block will also send a downlink signal, which can be used for RSSI measurement.

Optionally, the terminal device may determine a third time domain symbol set, where the third time domain symbol set includes at least one time domain symbol in the time slot occupied by the first downlink signal; The time domain set and the third time domain symbol set are subjected to RSSI measurements.

Specifically, the third time domain symbol set includes the first N time domain symbols in the time slots occupied by the first downlink signal. Alternatively, the N may be 1, 2, 3 or 4. Of course, N can also be 5, 6, 7, 8, 9, 10, 11, 12, 13 or 14.

The terminal device is combined with the second time domain conforming set and the third time domain symbol set. The RSSI measurement may be performed by using a second time domain coincidence set and a time domain symbol included in the third time domain symbol set (ie, a union of the second time domain symbol set and the third time domain symbol set).

Alternatively, the second time domain symbol set and the third time domain symbol set may have an intersection.

Optionally, the second time domain symbol set that is combined with the third time domain symbol set for the RSSI measurement may be the second time domain symbol set determined by any one of the foregoing manners, for example, may be according to the first time domain symbol set. The second time domain symbol set determined by the symbol in the particular time domain position in the time slot.

Optionally, the terminal device may perform the RSSI measurement by combining the first time domain symbol set, the second time domain symbol set, and the third time domain symbol set.

FIG. 5 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 400 includes a determining unit 410 and a measuring unit 420;

The determining unit 410 is configured to determine, according to the first time domain symbol set occupied by the first downlink signal, a second time domain symbol set for performing RSSI measurement;

The measuring unit 420 is configured to perform received signal strength indication RSSI measurement on the second time domain symbol set.

Optionally, the first downlink signal is a synchronization signal block.

Optionally, the determining unit 410 is further configured to:

And determining the second time domain symbol set according to a time domain position of the symbol in the first time domain symbol set in the time slot.

In an implementation, the determining unit 410 is further configured to:

The time domain symbols of all or part of the time domain locations except the time domain location occupied by the first time domain symbol set in the time slot are determined as symbols in the second time domain symbol set.

Optionally, as shown in FIG. 5, the terminal device 400 further includes a communication unit 430, configured to:

Receiving, by the network device, first indication information, where the first indication information is used to indicate that the time slot includes 0 transition points, where the transition point is a transition point from a downlink symbol to an uplink symbol;

Optionally, the time slot in which the time slot in which the first time domain symbol is located includes a probability that there are 0 transition points.

Optionally, the first downlink signal occupies the last time domain symbol of the 14 time domain symbols included in the time slot.

In an implementation, the determining unit 410 is further configured to:

When the first time domain symbol set has a time domain symbol that is not occupied by the first downlink signal before the last time domain symbol in the time slot, the last symbol in the time slot is not preceded by the first time symbol All or part of the time domain symbols occupied by a downlink signal are determined as symbols in the second time domain symbol set.

Wherein, when the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink, and The time slot includes at least one symbol that is unknown in the uplink and downlink, and an uplink or downlink symbol.

Optionally, the time slot included in the time slot in which the first time domain symbol is included includes two possibilities of 0 conversion points and 1 conversion point, where the conversion point is a transition point from the downlink symbol to the uplink symbol. ;

Optionally, the first downlink signal occupies the last symbol of the first 7 symbols of the 14 symbols; and the first downlink signal does not occupy the last symbol of the 14 symbols.

In an implementation, the determining unit 410 is further configured to:

The first time domain symbol set occupies at least one symbol of the first 7 symbols of the time slot, and in the first 7 symbols, the last one of the at least one symbol is preceded by the first downlink signal When the time domain symbol is occupied, all or part of the time domain symbols of the first 7 symbols that are not occupied by the first downlink signal are determined as symbols in the second time domain symbol set.

Optionally, the determining unit 410 is further configured to:

The first time domain symbol set occupies at least one symbol of the last 7 symbols of the time slot, and in the last 7 symbols, the last one of the at least one symbol is preceded by the first downlink signal When the time domain symbol is occupied, all or part of the time domain symbols of the last 7 symbols that are not occupied by the first downlink signal are determined as the symbols in the second time domain symbol set. number.

Receiving, by the network device, third indication information, where the third indication information is used to indicate that the time slot includes two transition points, where the transition point is a transition point from the downlink symbol to the uplink symbol;

Wherein, when the time slot includes two conversion points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, and there are 0 or more uplink and downlink unknowns in the middle. Symbol; for the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, with 0 or more upstream and downstream unknown symbols in between.

Optionally, the time slot in which the first time domain symbol is located includes a conversion point of 0 conversion points, 1 conversion and 2 conversion points, wherein the conversion point is from a downlink symbol to an uplink symbol. Conversion point

When the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of the uplink and the downlink; The slot includes at least one symbol of unknown uplink and downlink, and an uplink or downlink symbol;

When the time slot includes two conversion points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, and there are 0 or more uplink and downlink unknown symbols in the middle; For the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, there are 0 or more upstream and downstream unknown symbols in the middle.

Optionally, the first downlink signal does not occupy the last symbol of the first 7 symbols of the 14 symbols, and does not occupy the last symbol of the 14 symbols.

Optionally, the measuring unit 420 is further configured to:

It should be understood that the terminal device 400 may correspond to the terminal device in the method embodiment, and the corresponding operations implemented by the terminal device in the method embodiment may be implemented. For brevity, details are not described herein again.

FIG. 6 is a schematic structural diagram of a system chip 600 according to an embodiment of the present application. The system chip 600 of FIG. 6 includes an input interface 601, an output interface 602, the processor 603, and a memory 604 that can be connected by an internal communication connection line. The processor 603 is configured to execute code in the memory 604.

Optionally, when the code is executed, the processor 603 implements a method embodiment The method that the end device performs. For the sake of brevity, it will not be repeated here.

FIG. 7 is a schematic block diagram of a communication device 700 in accordance with an embodiment of the present application. As shown in FIG. 7, the communication device 700 includes a processor 710 and a memory 720. The memory 720 can store program code, and the processor 710 can execute the program code stored in the memory 720.

Alternatively, as shown in FIG. 7, the communication device 700 can include a transceiver 730 that can control the transceiver 730 to communicate externally.

Optionally, the processor 710 can call the program code stored in the memory 720 to perform the corresponding operations of the terminal device in the method embodiment. For brevity, details are not described herein again.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

It is to be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDR), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (SDRAM) and Direct Memory Bus Random Access Memory (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application is essentially or a part contributing to the prior art or a part of the technical solution. The points may be embodied in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform various embodiments of the present application. All or part of the steps of the method. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A method for measuring a received signal strength indication RSSI, comprising:

Determining, according to the first time domain symbol set occupied by the first downlink signal, a second time domain symbol set for performing RSSI measurement;

On the second set of time domain symbols, an RSSI measurement is performed.
The method of claim 1 wherein said first downlink signal is a sync signal block.
The method according to claim 1 or 2, wherein the determining the second time domain symbol set for performing the RSSI measurement according to the first time domain symbol set occupied by the first downlink signal comprises:

And determining the second time domain symbol set according to a time domain position of the symbol in the first time domain symbol set in the time slot.
The method according to claim 3, wherein the determining the second time domain symbol set according to a time domain position of a symbol in the first time domain symbol set in a time slot comprises:

Determining, as the symbols in the second time domain symbol set, time domain symbols of all or part of the time domain locations except the time domain location occupied by the first time domain symbol set in the time slot.
The method of claim 4, wherein the method further comprises:

And receiving, by the network device, the first indication information, where the first indication information is used to indicate that the time slot includes 0 transition points, where the transition point is a transition point from a downlink symbol to an uplink symbol;

Wherein, when the time slot includes 0 of the conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 uplink and downlink unknown symbols.
The method according to claim 4, wherein the time slot in which the first time domain symbol is located includes a conversion point having a probability of 0 transition points.
The method according to any one of claims 4 to 6, wherein the first downlink signal occupies the last time domain symbol of the 14 time domain symbols included in the time slot.
The method according to claim 3, wherein the determining the second time domain symbol set according to a time domain position of a symbol in the first time domain symbol set in a time slot comprises:

And when the first time domain symbol set has a time domain symbol that is not occupied by the first downlink signal before a last time domain symbol in the time slot, the last symbol in the time slot is All or part of the time domain symbols not previously occupied by the first downlink signal are determined as symbols in the second time domain symbol set.
The method of claim 8 further comprising:

And receiving, by the network device, second indication information, where the second indication information is used to indicate that the time slot includes one transition point, where the transition point is a transition point from a downlink symbol to an uplink symbol;

Wherein, when the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is unknown for uplink and downlink. A symbol, and the time slot includes at least one symbol that is unknown in the uplink and downlink, and an uplink or downlink symbol.
The method according to claim 8, wherein the time slot in which the first time domain symbol is located includes a conversion point having two conversion points and one conversion point, wherein the conversion The point is the transition point from the downstream symbol to the upstream symbol;

Wherein, when the time slot includes 0 of the conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 symbols of unknown uplink and downlink;

When the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink; And the time slot includes at least one symbol that is unknown in uplink and downlink, and an uplink or downlink symbol.
The method according to any one of claims 8 to 10, wherein the first downlink signal occupies the last symbol of the first seven symbols of the 14 symbols; and the first downlink The line signal does not occupy the last symbol of the 14 symbols.
The method according to claim 3, wherein the determining the second time domain symbol set according to a time domain position of a symbol in the first time domain symbol set in a time slot comprises:

The first time domain symbol set occupies at least one symbol of the first 7 symbols of the time slot, and in the first 7 symbols, the last one of the at least one symbol is previously not described When the time domain symbol occupied by the first downlink signal is used, all or part of the time domain symbols that are not occupied by the first downlink signal before the last one of the first seven symbols are determined as the second Symbols in the time domain symbol collection.
The method according to claim 3, wherein the determining the second time domain symbol set according to a time domain position of a symbol in the first time domain symbol set in a time slot comprises:

The first time domain symbol set occupies at least one symbol of the last 7 symbols of the time slot, and in the last 7 symbols, the last one of the at least one symbol is previously not described When the time domain symbol occupied by the first downlink signal is used, all or part of the time domain symbols that are not occupied by the first downlink signal before the last one of the last seven symbols are determined as the second Symbols in the time domain symbol collection.
The method according to claim 12 or 13, wherein the method further comprises:

And receiving, by the network device, third indication information, where the third indication information is used to indicate that the time slot includes two transition points, where the transition point is a transition point from a downlink symbol to an uplink symbol;

Wherein, when the time slot includes two of the transition points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, and there are 0 or more uplink and downlink in the middle. Unknown symbol; for the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, with 0 or more upstream and downstream unknown symbols in between.
The method according to claim 12 or 13, wherein the time slot in which the first time domain symbol is located includes a conversion point having zero conversion points, one conversion and two conversion points. Wherein, the conversion point is a transition point from a downlink symbol to an uplink symbol;

Wherein, when the time slot includes 0 of the conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 symbols of unknown uplink and downlink;

When the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink; And the time slot includes at least one symbol that is unknown in uplink and downlink, and an uplink or downlink symbol;

When the time slot includes two of the transition points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, and there are 0 or more uplink and downlink unknowns in the middle. Symbol; for the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, with 0 or more upstream and downstream unknown symbols in between.
The method according to any one of claims 12 to 15, wherein the first downlink signal does not occupy the last symbol of the first seven symbols of the 14 symbols, and the 14 is not occupied. The last symbol of the symbol.
The method according to any one of claims 1 to 16, wherein the RSSI measurement is performed on the second time domain symbol set, comprising:

The RSSI measurement is performed by combining the second time domain set and the first time domain symbol set.
The method according to any one of claims 1 to 17, wherein the method further comprises:

Determining a third time domain symbol set, where the third time domain symbol set includes first N time domain symbols of a time slot occupied by the first downlink signal;

Performing RSSI measurements on the second set of time domain symbols, including:

The RSSI measurement is performed by combining the second time domain set and the third time domain symbol set.
The method according to any one of claims 1 to 17, wherein the second time domain symbol set for performing RSSI measurement is determined according to the first time domain symbol set occupied by the first downlink signal, including :

And determining, according to the time slot in which the first time domain symbol set is located, the second time domain symbol set used for performing RSSI measurement.
The method according to claim 19, wherein the second set of time domain symbols comprises: first N time domain symbols of a time slot in which the first time domain symbol set is located.
Method according to claim 18 or 20, characterized in that said N is equal to 1, 2, 3 or 4.
A terminal device, comprising:

a determining unit, configured to determine, according to the first time domain symbol set occupied by the first downlink signal, a second time domain symbol set used for performing RSSI measurement;

And a measuring unit, configured to perform received signal strength indication RSSI measurement on the second time domain symbol set.
The apparatus according to claim 22, wherein said first downlink signal is a synchronization signal block.
The device according to claim 22 or 23, wherein the determining unit is further configured to:

And determining the second time domain symbol set according to a time domain position of the symbol in the first time domain symbol set in the time slot.
The device according to claim 24, wherein the determining unit is further configured to:

Determining, as the symbols in the second time domain symbol set, time domain symbols of all or part of the time domain locations except the time domain location occupied by the first time domain symbol set in the time slot.
The device according to claim 25, further comprising a communication unit, configured to:

And receiving, by the network device, the first indication information, where the first indication information is used to indicate that the time slot includes 0 transition points, where the transition point is a transition point from a downlink symbol to an uplink symbol;

Wherein, when the time slot includes 0 of the conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 uplink and downlink unknown symbols.
The device according to claim 25, wherein said first time domain symbol is There is a possibility that there are 0 transition points for the transition point included in the time slot.
The apparatus according to any one of claims 25 to 27, wherein the first downlink signal occupies a last time domain symbol of 14 time domain symbols included in the time slot.
The device according to claim 25, wherein the determining unit is further configured to:

And when the first time domain symbol set has a time domain symbol that is not occupied by the first downlink signal before a last time domain symbol in the time slot, the last symbol in the time slot is All or part of the time domain symbols not previously occupied by the first downlink signal are determined as symbols in the second time domain symbol set.
The device according to claim 29, further comprising: a communication unit, configured to: receive second indication information sent by the network device, where the second indication information is used to indicate that the time slot includes one transition point, Wherein, the conversion point is a transition point from a downlink symbol to an uplink symbol;

Wherein, when the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is unknown for uplink and downlink. A symbol, and the time slot includes at least one symbol that is unknown in the uplink and downlink, and an uplink or downlink symbol.
The apparatus according to claim 29, wherein the time slot in which the first time domain symbol is located includes a conversion point having two conversion points and one conversion point, wherein the conversion The point is the transition point from the downstream symbol to the upstream symbol;

Wherein, when the time slot includes 0 of the conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 symbols of unknown uplink and downlink;

When the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink; And the time slot includes at least one symbol that is unknown in uplink and downlink, and an uplink or downlink symbol.
The device according to any one of claims 29 to 31, wherein the first downlink signal occupies the last symbol of the first seven symbols of the 14 symbols; and the first downlink The line signal does not occupy the last symbol of the 14 symbols.
The device according to claim 24, wherein the determining unit is further configured to:

The first time domain symbol set occupies at least one symbol of the first 7 symbols of the time slot, and in the first 7 symbols, the last one of the at least one symbol is previously not described When the first downlink signal occupies the time domain symbol, the last one of the first seven symbols is All or part of the time domain symbols previously not occupied by the first downlink signal are determined as symbols in the second time domain symbol set.
The device according to claim 24, wherein the determining unit is further configured to:

The first time domain symbol set occupies at least one symbol of the last 7 symbols of the time slot, and in the last 7 symbols, the last one of the at least one symbol is previously not described When the time domain symbol occupied by the first downlink signal is used, all or part of the time domain symbols that are not occupied by the first downlink signal before the last one of the last seven symbols are determined as the second Symbols in the time domain symbol collection.
The device according to claim 33 or 34, further comprising a communication unit for:

And receiving, by the network device, third indication information, where the third indication information is used to indicate that the time slot includes two transition points, where the transition point is a transition point from a downlink symbol to an uplink symbol;

Wherein, when the time slot includes two of the transition points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, and there are 0 or more uplink and downlink in the middle. Unknown symbol; for the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, with 0 or more upstream and downstream unknown symbols in between.
The device according to any one of claims 33 to 35, wherein the time slot in which the first time domain symbol is located includes a conversion point of 0 conversion points, 1 conversion and 2 conversion points Possibility, wherein the transition point is a transition point from a downlink symbol to an upstream symbol;

Wherein, when the time slot includes 0 of the conversion points, the time slot includes 14 uplink symbols, 14 downlink symbols, or 14 symbols of unknown uplink and downlink;

When the time slot includes one of the transition points, the time slot starts with 0 or more downlink symbols, ends with 0 or more uplink symbols, and the middle symbol is an unknown symbol of uplink and downlink; And the time slot includes at least one symbol that is unknown in uplink and downlink, and an uplink or downlink symbol;

When the time slot includes two of the transition points, starting with 0 or more downlink symbols for the first 7 symbols, ending with at least one downlink symbol, and there are 0 or more uplink and downlink unknowns in the middle. Symbol; for the last 7 symbols, starting with 1 or more downstream symbols, ending with 0 or more upstream symbols, with 0 or more upstream and downstream unknown symbols in between.
The device according to any one of claims 33 to 36, wherein the first downlink signal does not occupy the last symbol of the first seven symbols of the 14 symbols, and does not occupy Use the last symbol of the 14 symbols.
The device according to any one of claims 22 to 37, wherein the measuring unit is further configured to:

The RSSI measurement is performed by combining the second time domain set and the first time domain symbol set.
The device according to any one of claims 22 to 38, wherein the determining unit is further configured to:

Determining a third time domain symbol set, where the third time domain symbol set includes first N time domain symbols of a time slot occupied by the first downlink signal;

Performing RSSI measurements on the second set of time domain symbols, including:

The RSSI measurement is performed by combining the second time domain set and the third time domain symbol set.
The device according to any one of claims 22 to 38, wherein the determining unit is further configured to:

And determining, according to the time slot in which the first time domain symbol set is located, the second time domain symbol set used for performing RSSI measurement.
The device according to claim 40, wherein the second set of time domain symbols comprises: first N time domain symbols of a time slot in which the first time domain symbol set is located.
Device according to claim 39 or 41, characterized in that said N is equal to 1, 2, 3 or 4.