CN113892299B

CN113892299B - Method and device for transmitting and receiving reference signal receiving power threshold

Info

Publication number: CN113892299B
Application number: CN201980096528.4A
Authority: CN
Inventors: 米翔; 铁晓磊; 金哲; 张力; 张萌; 罗之虎
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2024-05-03
Anticipated expiration: 2039-07-30
Also published as: WO2021016874A1; CN113892299A

Abstract

The application provides a method and a device for sending and receiving a reference signal receiving power threshold. The application relates to a method for transmitting a reference signal receiving power threshold, which comprises the following steps: configuring a first set of RSRP thresholds for the communication device, the first set of RSRP thresholds for determining whether a first TA of the communication device is valid; receiving first information from a communication device; determining a second set of RSRP thresholds for the communication device according to the first information, the second set of RSRP thresholds including one or more RSRP thresholds, the second set of RSRP thresholds for determining whether a second TA of the communication device is valid; and transmitting RSRP indication information to the communication equipment, wherein the RSRP indication information is used for indicating the second RSRP threshold set. The application can realize whether the TA is effective to judge the result is suitable for the change of the state of the communication equipment, on one hand, the power consumption of the communication equipment is reduced, the resource expenditure of the network equipment is reduced, on the other hand, the interference of the communication equipment to other communication equipment is reduced, and the unnecessary data demodulation of the communication equipment by the network equipment is also reduced.

Description

Method and device for transmitting and receiving reference signal receiving power threshold

Technical Field

The present application relates to communication technologies, and in particular, to a method and an apparatus for transmitting and receiving a reference signal received power threshold.

Background

At present, an uplink scheduling-free transmission technology is being researched to be added to a narrowband internet of things (Narrow Band Internet of Things, NB-IoT), and the uplink scheduling-free transmission may also be called as transmission (transmission in preconfigured UL resources, PUR) in a preconfigured uplink resource, scheduling-free transmission (grant-free transmission), uplink transmission (UpLink transmission in preconfigured resources) in a preconfigured resource, and the like, and is hereinafter referred to as uplink scheduling-free transmission. In the uplink scheduling-free transmission technology, a base station pre-configures uplink resources for terminal equipment, when uplink data is to be transmitted, the terminal equipment can directly transmit the uplink data on the pre-configured uplink resources according to a pre-specified transmission mode, and the base station transmits feedback information according to the demodulation condition of the uplink data. It can be seen that, by adopting the uplink scheduling-free transmission technology, the terminal equipment does not need to apply uplink resources to the base station, and does not need to wait for the base station to issue uplink scheduling information, thereby reducing the flow, and having the advantages of reducing the power consumption time delay, reducing the signaling overhead and the like.

In general, when a terminal device transmits uplink data, the time when uplink data sent by the terminal device arrives at a base station may be different for different terminal devices in the same cell due to different positions, which may cause interference between users. The time advance (TIMING ADVANCE, TA) has the effect of enabling the terminal equipment to adjust the uplink transmission time, so that the uplink data sent by all the terminal equipment in the cell reach the same time of the base station, and interference among users is avoided.

The terminal device can determine whether the TA is valid according to a reference signal received Power (REFERENCE SIGNAL RECEIVED Power, RSRP) threshold (threshold) configured by the base station, and in the case that the TA is valid, the terminal device can directly transmit uplink data by using an uplink scheduling-free transmission technology. However, in the present discussion of standards, the determination of whether the TA is valid may not be adapted to the change in the state of the terminal device. For example, if the terminal device uses the TA to transmit data in the case where the TA is invalid, it may cause inaccurate demodulation of the network device, waste of network resources, and increase of power consumption of the terminal device. If the terminal device is in the condition that the TA is valid, the terminal device cannot use uplink scheduling-free transmission due to the occurrence of an error in judging whether the TA is valid, the terminal device generally changes a traditional data transmission mode to perform data transmission in the condition, and obviously, the power consumption and network resource overhead of the communication device can be increased.

Disclosure of Invention

The application provides a method and a device for sending and receiving a reference signal receiving power threshold, so that a judging result of whether TA is valid is adapted to the change of the state of communication equipment, on one hand, the power consumption of the communication equipment is reduced, the resource expense of network equipment is reduced, on the other hand, the interference of the communication equipment to other communication equipment is reduced, and the unnecessary data demodulation of the communication equipment by the network equipment is also reduced.

In a first aspect, the present application provides a method for transmitting a reference signal received power threshold, including:

configuring a first set of reference signal received power, RSRP, thresholds for a communication device, the first set of RSRP thresholds comprising one or more RSRP thresholds, the first set of RSRP thresholds for determining whether a first time advance, TA, of the communication device is valid; receiving first information from the communication device; determining a second RSRP threshold set for the communication device according to the first information, wherein the second RSRP threshold set comprises one or more RSRP thresholds, the second RSRP threshold set is used for determining whether a second TA of the communication device is valid, the second TA is equal to the sum of the first TA and a first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to the sum of each RSRP threshold in the first RSRP threshold set and one adjustment amount; and sending RSRP indication information to the communication equipment, wherein the RSRP indication information is used for indicating the second RSRP threshold set.

In this embodiment, the network device reconfigures the RSRP threshold set that matches the updated TA to the communication device according to the first information, so that the communication device can determine whether the updated TA is valid based on the new RSRP threshold set, and the determination result is adapted to the change of the state of the communication device. Aiming at the situation that the updated TA is effective, the scheme of the embodiment enables the communication equipment to use uplink scheduling-free transmission as much as possible, so that the power consumption of the communication equipment and the resource overhead of the network equipment can be reduced as much as possible. Aiming at the situation that the updated TA fails, the scheme of the embodiment ensures that the communication equipment performs data transmission by using a traditional data transmission mode under the situation, so that the interference of the communication equipment to other communication equipment is reduced as much as possible, and unnecessary data demodulation of the communication equipment by the network equipment is also reduced.

In one possible implementation manner, the determining a second RSRP threshold set for the communication device according to the first information includes: determining the second TA according to the first information, wherein the second TA is different from the first TA, and determining the second RSRP threshold set according to the second TA.

The network device determines a second set of RSRP thresholds based on the second TA only if a TA update is required.

In one possible implementation manner, the sending RSRP indication information to the communication device includes: when a set of setting conditions is met, sending the RSRP indication information to the communication equipment; wherein the set of set conditions includes at least one of the following conditions:

(1) The distance from the communication equipment to the base station of the current service cell is smaller than a first threshold value;

(2) The second TA is less than a second threshold;

(3) The RSRP of the communication device is greater than a third threshold;

(4) The absolute value of at least one RSRP threshold in the second RSRP threshold set is larger than a fourth threshold;

(5) The absolute values of two RSRP threshold values in the second RSRP threshold set are respectively larger than a fifth threshold value and a sixth threshold value.

In one possible implementation, the RSRP indication information is carried by control information.

In one possible implementation, the RSRP indication information is carried on a data channel.

In one possible implementation, the RSRP indication information is carried on a medium access control layer control element MAC CE or radio resource control RRC signaling transmitted in the data channel.

In one possible implementation, the RSRP indication information includes: an adjustment amount of each RSRP threshold in the second set of RSRP thresholds relative to each RSRP threshold in the first set of RSRP thresholds; or each RSRP threshold in the second set of RSRP thresholds.

In a possible implementation, the control information includes 23 bits, wherein at least 1 bit is used to represent the RSRP indication information.

In one possible implementation, the control information comprises 23 bits, wherein,

1 Bit is used for representing the format of the control information, 2 bits are used for representing the repetition number of a subframe of the control information, 4 bits are used for representing a Modulation and Coding Scheme (MCS), 0-6 bits are used for representing the first adjustment quantity or the second TA, and 1-10 bits are used for representing the RSRP indication information; or alternatively

1 Bit is used for representing the format of the control information, 2 bits are used for representing the repetition number of the control information subframe, 1 bit is used for representing a new data indication identifier, and 1-19 bits are used for representing the RSRP indication information; or alternatively

1 Bit is used to represent the format of the control information, 2 bits are used to represent the number of control information subframe repetitions, 6 bits are used to represent the subcarrier indication, and 1-14 bits are used to represent the RSRP indication information.

In a possible implementation manner, the first information includes uplink data and/or uplink control signaling carried on a data channel, or a preamble carried on a random access channel.

Optionally, when the first TA is determined to be valid according to the first RSRP threshold set, the first information is uplink data and/or uplink control signaling carried on a data channel.

Optionally, when the first TA is determined to be invalid according to the first RSRP threshold set, the first information is a preamble carried on a random access channel.

Optionally, after determining whether the second TA is valid according to a second RSRP threshold set, second information may be sent to the network device. The second information is transmitted in a similar manner to the first information described above.

In a second aspect, the present application provides a method for receiving a reference signal received power threshold, including:

Determining a first reference signal received power, RSRP, threshold set according to a configuration of a network device, the first RSRP threshold set comprising one or more RSRP thresholds, the first RSRP threshold set being used to determine whether a first time advance, TA, is valid; transmitting first information to a network device; receiving RSRP indication information from the network device, the RSRP indication information being used to indicate a second set of RSRP thresholds; determining a second RSRP threshold set according to the RSRP indicating information, wherein the second RSRP threshold set comprises one or more RSRP thresholds, the second RSRP threshold set is used for determining whether a second TA is valid, the second TA is equal to the sum of the first TA and the first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to the sum of each RSRP threshold in the first RSRP threshold set and one adjustment amount.

In this embodiment, the communication device determines whether the updated TA is valid based on the new RSRP threshold set configured by the network device, and the determination result is adapted to the change of the state of the communication device. Aiming at the situation that the updated TA is effective, the scheme of the embodiment enables the communication equipment to use uplink scheduling-free transmission as much as possible, so that the power consumption of the communication equipment and the resource overhead of the network equipment can be reduced as much as possible. Aiming at the situation that the updated TA fails, the scheme of the embodiment ensures that the communication equipment performs data transmission by using the traditional data transmission mode under the situation, thereby reducing the interference of the communication equipment to other communication equipment as much as possible and reducing unnecessary data demodulation of the network equipment to the communication equipment.

In a third aspect, the present application provides a transmitting apparatus for a reference signal received power threshold, including:

A processing module configured to configure a first set of reference signal received power, RSRP, thresholds for a communication device, the first set of RSRP thresholds including one or more RSRP thresholds, the first set of RSRP thresholds being used to determine whether a first time advance, TA, of the communication device is valid; a receiving module for receiving first information from the communication device; the processing module is further configured to determine a second RSRP threshold set for the communication device according to the first information, where the second RSRP threshold set includes one or more RSRP thresholds, the second RSRP threshold set is used to determine whether a second TA of the communication device is valid, the second TA is equal to a sum of the first TA and a first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to a sum of each RSRP threshold in the first RSRP threshold set and an adjustment amount; and determining RSRP indication information, wherein the RSRP indication information is used for indicating the second RSRP threshold set; and the sending module is used for sending the RSRP indication information to the communication equipment.

In a possible implementation manner, the processing module is specifically configured to determine the second TA according to the first information, where the second TA is different from the first TA; and determining the second RSRP threshold set according to the second TA.

In a possible implementation manner, the sending module is specifically configured to send the RSRP indication information to the communication device when a set of setting conditions is met; wherein the set of set conditions includes at least one of the following conditions:

(2) The second TA is less than a second threshold;

(3) The RSRP of the communication device is greater than a third threshold;

In a fourth aspect, the present application provides a receiving apparatus for a reference signal received power threshold, including:

A processing module, configured to determine a first set of RSRP thresholds according to a configuration of a network device, where the first set of RSRP thresholds includes one or more RSRP thresholds, and the first set of RSRP thresholds is configured to determine whether a first time advance TA is valid; the sending module is used for sending the first information to the network equipment; a receiving module, configured to receive RSRP indication information from the network device, where the RSRP indication information is used to indicate a second RSRP threshold set; the processing module is further configured to determine, according to the RSRP indication information, the second RSRP threshold set, where the second RSRP threshold set includes one or more RSRP thresholds, the second RSRP threshold set is used to determine whether a second TA is valid, the second TA is equal to a sum of the first TA and a first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to a sum of each RSRP threshold in the first RSRP threshold set and an adjustment amount.

In a fifth aspect, the present application provides a network device comprising:

one or more processors;

a memory for storing one or more programs;

The one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any of the first aspects described above.

In a sixth aspect, the present application provides a communication device comprising:

one or more processors;

a memory for storing one or more programs;

The one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any of the second aspects described above.

In a seventh aspect, the present application provides a computer readable storage medium comprising a computer program which, when executed on a computer, causes the computer to perform the method of any one of the first to second aspects.

In an eighth aspect, the present application provides a computer program for performing the method of any one of the first to second aspects above, when the computer program is executed by a computer.

Drawings

Fig. 1 is a diagram showing an example of a communication system to which the RSRP threshold transmission method of the present application is applied;

fig. 2 is a flowchart of an embodiment of a method for transmitting RSRP threshold values according to the present application;

fig. 3 is a schematic structural diagram of an embodiment of an RSRP threshold transmission device according to the present application;

Fig. 4 is a schematic structural diagram of a communication device provided by the present application;

Fig. 5 is a schematic block diagram of a network device provided by the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "first," "second," and the like in the description and in the claims and drawings are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion, such as a series of steps or elements. The method, system, article, or apparatus is not necessarily limited to those explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.

It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "and/or" for describing the association relationship of the association object, the representation may have three relationships, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

Fig. 1 is a diagram of an exemplary communication system to which the RSRP threshold transmission method of the present application is applied, and as shown in fig. 1, the communication system, for example, long term evolution (Long Term Evolution, LTE), may include a Base Station (Base Station) and User Equipments (UEs) 1-6, and the UEs 1-6 send first information to the Base Station. In addition, UE4-UE6 may also form a communication system in which the base station may send downlink information to UE1, UE2, UE3, and UE5 may also send downlink information to UE4 and UE6.

It should be noted that, besides being applicable to the above LTE system, the RSRP threshold transmission method provided by the present application may also be applicable to other communication systems, such as a 5G NR (New Radio) system, a global system for mobile communications (Global System for Mobile Communication, GSM), a mobile communication system (Universal Mobile Telecommunications System, UMTS), a code division multiple access (Code Division Multiple Access, CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, a narrowband internet of things (Narrow Band Internet of Things, NB-IoT) system, an enhanced machine communication (ENHANCED MACHINE-Type Communication, eMTC) system, and other communication systems. As long as the network device in the communication system needs to send the transmission direction indication information, the communication device needs to receive the indication information and determine the transmission direction within a certain time according to the indication information, the transmission method of the RSRP threshold provided by the application can be used.

The network device may be configured to convert received air frames to and from network protocol (Internet Protocol, IP) packets as a router between the wireless terminal and the rest of the access network, which may include an IP network. The network device may also coordinate attribute management for the air interface. The network device may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (evolutional Node B, eNB or e-NodeB) in LTE, for example, and the application is not limited in this regard.

The communication device may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. The communication devices may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), which may be mobile terminals, such as mobile phones (or "cellular" phones) and computers with mobile terminals, as well as portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as Personal communication services (Personal Communication Service, PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal DIGITAL ASSISTANT, PDA) and the like. The communication Device may also be referred to as a system, subscriber Unit (Subscriber Unit), subscriber Station (Subscriber Station), mobile Station (Mobile Station), remote Station (Remote Station), access Point (Access Point), remote Terminal (Remote Terminal), access Terminal (ACCESS TERMINAL), user Terminal (User Terminal), user Agent (User Agent), user Equipment (User Device), or User Equipment (User Equipment).

Fig. 2 is a flowchart of an embodiment of a method for sending and receiving RSRP threshold of the present application, as shown in fig. 2, the method of this embodiment may include:

step 201, the network device configures a first RSRP threshold set for the communication device.

The first set of RSRP thresholds includes one or more RSRP thresholds for determining whether a first TA of the communication device is valid. That is, the communication device may determine whether the first TA is valid based on one or more RSRP thresholds in the first set of RSRP thresholds. Exemplary:

If the first RSRP threshold set includes one RSRP threshold NRSRP _threshold, the communication device considers the first TA to be valid when | NRSRP _change|≤NRSRP_threshold is satisfied, where NRSRP _change＝NRSRP_now-NRSRP_ref,NRSRP_now represents an RSRP value currently measured by the communication device, NRSRP _ref represents an RSRP reference value, which may be an RSRP value measured by the communication device before or an RSRP value measured when the communication device obtains the first TA, which is not limited in this application.

If two RSRP thresholds NRSRP _threshold1 and NRSRP _threshold2 are included in the first set of RSRP thresholds, the communication device considers the first TA to be valid when NRSRP _threshold1≤NRSRP_change≤NRSRP_threshold2 is met.

The first TA is used for enabling the communication device to adjust uplink transmission time, so that the time for uplink data sent by all communication devices in the cell to reach the network device is the same, and interference among users is avoided. Initially, the network device configures a first TA and a first RSRP threshold set for the communication device, the communication device may determine whether the first TA is valid according to one or more RSRP thresholds (RSRP threshold) in the first RSRP threshold set, and in the case that the first TA is valid, the communication device may directly transmit uplink data by using an uplink scheduling-free transmission technology. The network device may send the first TA configured to the communication device directly to the communication device.

Illustratively, assuming that initially the distance x=1500m of the communication device from the network device, the first RSRP threshold set configured for the communication device by the network device corresponding to the distance includes two thresholds-6.3 dB and 10.3dB, the communication device considers the first TA valid when-6.3 db+. NRSRP _change +.10.3 dB is satisfied, NRSRP _change＝NRSRP_now-NRSRP_ref,NRSRP_now represents the RSRP value currently measured by the communication device, NRSRP _ref represents the RSRP reference value, which may be the RSRP value measured by the communication device the previous time or the RSRP value measured by the communication device when the communication device obtains the first TA, which is not particularly limited in the present application.

Step 202, the communication device sends first information to the network device.

The first information sent by the communication device includes uplink data and/or uplink control signaling carried on a data channel, or a preamble (preamble) carried on a Random access channel (Random ACCESS CHANNEL, RACH). When the first TA is determined to be valid according to the first RSRP threshold set, the first information may be uplink data and/or uplink control signaling carried on the data channel. The first information may be a preamble carried on the random access channel when the first TA is determined to be inactive according to the first RSRP threshold set.

Step 203, the network device determines a second RSRP threshold set for the communication device according to the first information.

The second set of RSRP thresholds includes one or more RSRP thresholds for determining whether a second TA of the communication device is valid, the second TA being equal to a sum of the first TA and the first adjustment amount, each RSRP threshold in the second set of RSRP thresholds being respectively equal to a sum of each RSRP threshold in the first set of RSRP thresholds and one adjustment amount. The second TA is used for enabling the communication device to adjust uplink transmission time in the process of data transmission between the network device and the communication device, so that the uplink data sent by all the communication devices in the cell reach the network device in the same time, and interference among users is avoided. In the process of data transmission between the network device and the communication device, the TA changes from the first TA to the second TA, and the position of the communication device may also change, if the second TA of the communication device is valid or not, it is likely to be inaccurate by using the first RSRP threshold set, and therefore, the first RSRP threshold set needs to be adjusted, and the second RSRP threshold set obtained after the adjustment is used to determine whether the second TA is valid or not.

The network device may determine the second TA according to the first information, and determine whether TA update is required according to the first TA and the second TA, for example, if the second TA is different from the first TA, the TA update is required. If it is determined that TA update is required, determining a second RSRP threshold set according to the second TA, i.e. the network device determines the second RSRP threshold set according to the second TA only when TA update is required. The network device sending the second TA to the communication device may take two ways: one is that the network device sends the second TA configured to the communication device directly to the communication device; the other is that the network device sends a first adjustment of the second TA relative to the first TA to the communication device.

Illustratively, assuming initially that the distance x=15000 m of the communication device from the network device, the first TA configured for this distance network device is 19, the first RSRP threshold set includes two thresholds-6.3 dB and 10.3dB. In the process of data transmission with the network device, the communication device moves 500m (1500 m to 2000 m) away from the network device, and at this time, if the RSRP threshold set is not updated, the judgment of whether the TA is valid may be inaccurate, that is, the first TA is actually invalid, but the communication device judges that the first TA is valid according to the first RSRP threshold set, and the communication device sends uplink data by using the first TA, so that the network device demodulates inaccurately, wastes network resources, increases power consumption of the communication device, and causes interference to other communication devices. The interval of the RSRP threshold set is thus less strained when the communication device is far away from the network device. Or the communication device moves 500m (1500 m→1000 m) towards the network device during the process of data transmission with the network device, at this time, if the RSRP threshold set is not updated, the judgment of whether the TA is valid may be inaccurate, that is, the first TA is still valid in practice, but the communication device judges that the first TA is invalid according to the first RSRP threshold set, so that the communication device cannot use uplink scheduling-free transmission. In this case, the communication device typically performs data transmission by using a conventional data transmission manner. Compared with uplink scheduling-free transmission, the traditional data transmission mode is used for data transmission, so that the power consumption and network resource overhead of the communication equipment can be increased. The interval of the RSRP threshold set is thus strained large when the communication device is towards the network device.

Table 1 shows the correspondence between the effective TA and the RSRP threshold sets under the two foregoing changes, NRSRP _change＝NRSRP_now-NRSRP_ref,NRSRP_now indicates the RSRP value currently measured by the communication device, NRSRP _ref indicates the RSRP reference value, which may be the RSRP value measured by the communication device before or the RSRP value measured when the communication device obtains the first TA, and δ _away dB and δ _close dB are two RSRP thresholds in the RSRP threshold set.

TABLE 1

As shown in the table 1 below,When the communication device moves 500m (1500 m→2000 m) away from the network device, the network device adjusts the TA of the communication device from 19 (first TA) to 26 (second TA), and the second RSRP threshold set includes two thresholds-4.9 dB and 7.1dB, respectively. When the communication device moves 500m (1500 m→1000 m) towards the network device, the network device adjusts the TA of the communication device from 19 (first TA) to 13 (second TA), and the second RSRP threshold set includes two thresholds-8.7 dB and 19.8dB, respectively.

It should be noted that, when the communication device moves 500m (1500 m→2000 m) away from the network device, the second TA (26) is equal to the sum of the first TA (19) and the first adjustment amount (7). When the communication device moves 500m (1500 m→1000 m) towards the network device, the second TA (13) is equal to the sum of the first TA (19) and the first adjustment amount (-6). However, in the process of moving the communication device, there may be a case where TA is not changed, that is, the first adjustment amount is 0, and at this time, the first TA and the second TA are equal, and TA update is not required.

In addition, when the communication device moves 500m (1500 m→2000 m) away from the network device, δ _away (first RSRP threshold) -6.3dB in the section of the first RSRP threshold set becomes δ _away (first RSRP threshold) -4.9dB in the section of the second RSRP threshold set, δ _away adjustment amount is 1.4dB, δ _close (second RSRP threshold) 10.3dB in the section of the first RSRP threshold set becomes δ _close (second RSRP threshold) 7.1dB in the section of the second RSRP threshold set, and δ _close adjustment amount is-3.2 dB. When the communication device moves 500m (1500 m→1000 m) toward the network device, δ _away (first RSRP threshold) -6.3dB in the section of the first RSRP threshold set becomes δ _away (first RSRP threshold) -8.7dB in the section of the second RSRP threshold set, δ _away adjustment amount is-2.4B, δ _close (second RSRP threshold) 10.3dB in the section of the first RSRP threshold set becomes δ _close (second RSRP threshold) 19.8dB in the section of the second RSRP threshold set, and δ _close adjustment amount is 9.5dB. However, in the process of moving the communication device, there may be a case that a part of RSRP thresholds in the RSRP threshold set changes, that is, adjustment amounts corresponding to the part of RSRP thresholds in the RSRP threshold set are 0 respectively; there may be a case where the RSRP threshold set is not changed, that is, the adjustment amount corresponding to each RSRP threshold is 0.

Step 204, the network device sends RSRP indication information to the communication device, where the RSRP indication information is used to indicate the second RSRP threshold set.

The network device sends RSRP indication information to the communication device, which may be carried in control information, e.g. downlink control information (Downlink Control Information, DCI).

Table 2 shows DCI in an N0 format (format) in the existing protocol, which is used as a transmission uplink grant (UL grant).

TABLE 2

In order to carry RSRP indication information on DCI, the present application provides three new N0 format DCIs shown in tables 3-5. The N0 format DCI shown in tables 3 to 5 is only a few examples, and the present application is not limited to the DCI carrying RSRP indication information.

TABLE 3 Table 3

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In the DCI shown in table 3, 1 bit is used to indicate a DCI format, 2 bits are used to indicate a DCI subframe repetition number, 4 bits are used to indicate an MCS, I _MCS =14 indicates that this is a new DCI format, 0 to 6 bits are used to indicate an adjustment amount of the second TA with respect to the first TA or the second TA, and 1 to 10 bits are used to indicate RSRP indicating information.

TABLE 4 Table 4

In the DCI shown in table 4, 1 bit is used to represent the format of the DCI, 2 bits are used to represent the repetition number of the DCI subframe, 1 bit is used to represent the new data indication identity NDI, one state of NDI is used to indicate that this is the new DCI format, and 1-19 bits are used to represent RSRP indication information.

TABLE 5

/>

In the DCI shown in table 5, 1 bit is used to indicate the format of the DCI, 2 bits are used to indicate the number of DCI subframe repetitions, 6 bits are used to indicate subcarrier indication, and 1 to 14 bits are used to indicate RSRP indication information, indicating that this is a new DCI format with a reservation state in subcarrier indication.

The network device may send RSRP indication information to the communication device, or may carry the RSRP indication information on the data channel. Alternatively, the network device may carry RSRP indication information on a medium access control layer control element (MEDIA ACCESS Control Control Element, MAC CE) or radio resource control (Radio Resource Control, RRC) signaling transmitted in the data channel.

In the application, the RSRP threshold values in the first RSRP threshold value set and the second RSRP threshold value set are in one-to-one correspondence, for example, the first RSRP threshold value in the first RSRP threshold value set corresponds to the first RSRP threshold value in the second RSRP threshold value set, the first RSRP threshold value and the corresponding adjustment quantity are summed to obtain the second RSRP threshold value, the second RSRP threshold value in the first RSRP threshold value set corresponds to the second RSRP threshold value in the second RSRP threshold value set, and the first RSRP threshold value and the corresponding adjustment quantity are summed to obtain the second RSRP threshold value. Based on this, the RSRP indication information may include an adjustment amount of each RSRP threshold in the second set of RSRP thresholds relative to each RSRP threshold in the first set of RSRP thresholds, i.e. the network device carries in the RSRP indication information an adjustment amount corresponding to each RSRP threshold in the second set of RSRP thresholds. Or the RSRP indication information may also include each RSRP threshold in the second set of RSRP thresholds, i.e. each RSRP threshold in the second set of RSRP thresholds is carried by the network device in the RSRP indication information.

In some possible implementations, the network device may carry in the RSRP indication information an adjustment amount of the RSRP threshold in the second set of RSRP thresholds with respect to the RSRP threshold in the first set of RSRP thresholds, and the network device may send the adjustment amount in the following ways:

In a first way, the network device sends a scaling factor and the communication device obtains the RSRP threshold in the second set of RSRP thresholds based on the scaling factor and the RSRP threshold in the first set of RSRP thresholds. For example, the scale factors take on a set of values Assume that the RSRP threshold in the first set of RSRP thresholds is-6.3 dB and the scaling factor transmitted by the current network device is/>The communication device can get the adjustment amount/>And then the RSRP threshold in the second RSRP threshold set is-6.3db+1.575db= -4.725dB.

In the second way, the amount of adjustment sent by the network device depends on a set. For example, the set of adjustment values is { ±8, ±6, ±4, ±2}, and assuming that the RSRP threshold value in the first set of RSRP threshold values is-6.3 dB and the adjustment amount transmitted by the current network device is 2dB, the communication device may obtain that the RSRP threshold value in the second set of RSRP threshold values is-6.3 db+2db= -4.3dB.

In a third way, the adjustment value sent by the network device depends on a plurality of sets, and the value range and/or quantization precision of each set are not identical. For example, the network device may send an indication message to inform which set the currently sent adjustment value depends on, or the communication device determines which set the currently sent adjustment value depends on according to rules agreed in advance, for example, the agreed rules may be: when the TA value of the communication device is less than a certain threshold, using the set { ±12, ±10, ±8, ±6, ±4, ±2, ±1}; otherwise, the set { ±1, ±0.5}, is used.

In the fourth mode, when the number of adjustment amounts sent by the network device is greater than 1, each adjustment amount may be valued in different sets, where the value ranges and/or quantization accuracy of the sets are not identical. For example, the number of adjustment amounts sent by the current network device is 2, the first adjustment amount may have a value set of { ±2, ±1, ±0.5, ±0.25}, and the second adjustment amount may have a value set of { ±8, ±6, ±4, ±2}.

In one possible implementation, the network device sends RSRP indication information to the communication device only when the set of conditions is met; wherein the set of conditions includes at least one of the following conditions:

(2) The second TA is less than a second threshold;

(3) The RSRP of the communication device is greater than a third threshold;

(4) The absolute value of at least one RSRP threshold in the second RSRP threshold set is greater than the fourth threshold;

(5) The absolute values of two RSRP threshold values in the second RSRP threshold set are respectively larger than the fifth threshold value and the sixth threshold value.

The determination conditions of the above condition set that are smaller and/or larger may be changed to be smaller or equal to, larger than or equal to, the actually set threshold value, and the present application is not limited thereto. For example, the set of setting conditions may be:

(1) The distance from the communication equipment to the base station of the current service cell is less than or equal to a seventh threshold value;

(2) The second TA is less than or equal to the eighth threshold;

(3) The RSRP of the communication device is greater than or equal to the ninth threshold;

(4) The absolute value of at least one RSRP threshold in the second RSRP threshold set is greater than or equal to a tenth threshold;

(5) The absolute values of two RSRP threshold values in the second RSRP threshold set are respectively greater than or equal to an eleventh threshold value and a twelfth threshold value.

In contrast to the above, when the communication device is far from the base station of the current serving cell, the RSRP threshold change amount in the RSRP threshold set is small, and the network device may not need to update the RSRP threshold set. For example, the present application may be when a set of set conditions is met, i.e., (1) the distance of the communication device to the base station of the current serving cell is greater than a first threshold; (2) the second TA is greater than a second threshold; (3) the RSRP of the communication device is less than a third threshold; (4) The absolute value of at least one RSRP threshold in the second RSRP threshold set is smaller than the fourth threshold; (5) The absolute values of two RSRP threshold values in the second RSRP threshold set are respectively smaller than the fifth threshold value and the sixth threshold value, and the network equipment does not update the RSRP threshold set and does not need to send RSRP indication information to the communication equipment.

In summary, in the present application, the network device may send RSRP indication information to the communication device only when a certain condition is satisfied.

Step 205, the communication device determines a second RSRP threshold set according to the RSRP indication information.

If the RSRP indication information includes an adjustment amount of each RSRP threshold in the second set of RSRP thresholds relative to each RSRP threshold in the first set of RSRP thresholds, the communication device calculates each RSRP threshold in the second set of RSRP thresholds according to the adjustment amount in combination with each RSRP threshold in the first set of RSRP thresholds; if the RSRP indication information includes each RSRP threshold communication device in the second set of RSRP thresholds, the communication device directly acquires each RSRP threshold in the second set of RSRP thresholds.

After determining the second set of RSRP thresholds, the communication device may determine whether the second TA is valid based on one or more RSRP thresholds in the second set of RSRP thresholds. Exemplary:

if one RSRP threshold NRSRP _threshold is included in the second set of RSRP thresholds, the communication device considers the second TA to be valid when | NRSRP _change|≤NRSRP_threshold is satisfied, wherein NRSRP _change＝NRSRP_now-NRSRP_ref.

If two RSRP thresholds NRSRP _threshold1 and NRSRP _threshold2 are included in the second set of RSRP thresholds, the communication device considers the second TA to be valid when NRSRP _threshold1≤NRSRP_change≤NRSRP_threshold2 is met.

Fig. 3 is a schematic structural diagram of an embodiment of an RSRP threshold transmission apparatus according to the present application, as shown in fig. 3, an apparatus of this embodiment may be a transmitting apparatus applied to a network device or a receiving apparatus applied to a communication device in the communication system shown in fig. 1, where the apparatus may include: a processing module 301, a receiving module 302 and a transmitting module 303.

When the transmission means of the reference signal received power threshold is a transmission means applied to the above network device, the processing module 301 is configured to configure a first set of reference signal received power RSRP thresholds for the communication device, where the first set of RSRP thresholds includes one or more RSRP thresholds, and the first set of RSRP thresholds is used to determine whether the first time advance TA of the communication device is valid; a receiving module 302, configured to receive first information from the communication device; the processing module 301 is further configured to determine a second set of RSRP thresholds for the communication device according to the first information, where the second set of RSRP thresholds includes one or more RSRP thresholds, the second set of RSRP thresholds is used to determine whether a second TA of the communication device is valid, the second TA is equal to a sum of the first TA and a first adjustment amount, and each RSRP threshold in the second set of RSRP thresholds is respectively equal to a sum of each RSRP threshold in the first set of RSRP thresholds and an adjustment amount; and determining RSRP indication information, wherein the RSRP indication information is used for indicating the second RSRP threshold set; a sending module 303, configured to send the RSRP indication information to the communication device.

In a possible implementation manner, the processing module 301 is specifically configured to determine the second TA according to the first information, where the second TA is different from the first TA; and determining the second RSRP threshold set according to the second TA.

In a possible implementation manner, the sending module 303 is specifically configured to send the RSRP indication information to the communication device when a set of setting conditions is met; wherein the set of set conditions includes at least one of the following conditions:

(2) The second TA is less than a second threshold;

(3) The RSRP of the communication device is greater than a third threshold;

When the transmission device of the reference signal received power threshold is a receiving device applied to the communication device, the processing module 301 is configured to determine, according to a configuration of the network device, a first set of reference signal received power RSRP thresholds, where the first set of RSRP thresholds includes one or more RSRP thresholds, and the first set of RSRP thresholds is used to determine whether the first time advance TA is valid; a sending module 303, configured to send the first information to a network device; a receiving module 302, configured to receive RSRP indication information from the network device, where the RSRP indication information is used to indicate a second RSRP threshold set; the processing module 301 is further configured to determine, according to the RSRP indication information, the second set of RSRP thresholds, where the second set of RSRP thresholds includes one or more RSRP thresholds, the second set of RSRP thresholds is used to determine whether a second TA is valid, the second TA is equal to a sum of the first TA and a first adjustment amount, and each RSRP threshold in the second set of RSRP thresholds is respectively equal to a sum of each RSRP threshold in the first set of RSRP thresholds and an adjustment amount.

The device of the present embodiment may be used to implement the technical solution of the method embodiment shown in fig. 2, and its implementation principle and technical effects are similar, and are not described here again.

Fig. 4 is a schematic structural diagram of a communication device provided by the present application. As shown in fig. 4, the communication device 400 may be a network device or a communication device in the communication system shown in fig. 1 described above. The communication device 400 comprises a processor 401 and a transceiver 402.

Optionally, the communication device 400 further comprises a memory 403. Wherein the processor 401, the transceiver 402 and the memory 403 may communicate with each other via an internal connection path to transfer control signals and/or data signals.

Wherein the memory 403 is used for storing a computer program. The processor 401 is arranged to execute a computer program stored in the memory 403 in order to realize the functions in the above described device embodiments.

In particular, the processor 401 may be used to perform the operations and/or processes described in an apparatus embodiment (e.g., fig. 3) as being performed by the processing module 301, while the transceiver 402 is used to perform the operations and/or processes as being performed by the receiving module 302 and the transmitting module 303.

Alternatively, the memory 403 may be integrated in the processor 401 or may be independent of the processor 401.

Optionally, the communication device 400 may further comprise an antenna 404 for transmitting signals output by the transceiver 402. Or transceiver 402 receives signals via an antenna.

Optionally, the communication device 400 may also include a power supply 405 for providing power to various devices or circuits in the device.

In addition, to make the function of the communication device more complete, the communication device 400 may further include one or more of an input unit 406, a display unit 407 (which may also be considered as an output unit), an audio circuit 408, a camera 409, a sensor 410, and the like. The audio circuitry may also include a speaker 4081, a microphone 4082, etc., which are not described in detail.

Fig. 5 is a schematic block diagram of a network device provided by the present application. As shown in fig. 5, the network device 500 includes an antenna 501, a radio frequency device 502, and a baseband device 503. The antenna 501 is connected to a radio frequency device 502. In the uplink direction, the radio frequency device 502 receives a signal from the communication apparatus through the antenna 501, and transmits the received signal to the baseband device 503 for processing. In the downstream direction, the baseband apparatus 503 generates a signal to be transmitted to the communication device, and transmits the generated signal to the radio frequency apparatus 502. The radio frequency device 502 transmits the signal through the antenna 501.

The baseband apparatus 503 may include one or more processing units 5031. The processing unit 5031 may be a processor.

The baseband device 503 may further include one or more storage units 5032 and one or more communication interfaces 5033. The storage unit 5032 is used for storing computer programs and/or data. The communication interface 5033 is used to interact with the radio frequency device 502. The storage unit 5032 may be a memory, and the communication interface 5033 may be an input/output interface or a transceiver circuit.

Alternatively, the memory unit 5032 may be a memory unit on the same chip as the processing unit 5031, i.e., an on-chip memory unit, or may be a memory unit on a different chip than the processing unit 5031, i.e., an off-chip memory unit. The application is not limited in this regard.

In fig. 5, baseband device 503 may perform operations and/or processes performed by processing module 301 in an apparatus embodiment (e.g., fig. 3). The radio frequency device 502 may perform the operations and/or processes performed by the receiving module 302 and the transmitting module 303 in an embodiment of the device (e.g., fig. 3).

The present application also provides a computer readable storage medium having a computer program stored thereon, which when executed by a computer causes the computer to perform the steps and/or processes described above in the method embodiment shown in fig. 2.

The present application also provides a computer program product comprising computer program code for causing a computer to carry out the steps and/or processes of the method embodiment shown in fig. 2 described above when said computer program code is run on a computer.

In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable GATE ARRAY, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in the embodiment of the application can be directly embodied in a hardware encoding processor for execution or in a combination of hardware and software modules in the encoding processor for execution. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

The memory mentioned in the above embodiments may be 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 programmable ROM (erasable PROM), an electrically erasable programmable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is 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 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 solution. 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 application.

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

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 apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (personal computer, server, network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a random access memory (random access memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for transmitting a reference signal received power threshold, comprising:

Configuring a first set of reference signal received power, RSRP, thresholds for a communication device, the first set of RSRP thresholds comprising one or more RSRP thresholds, the first set of RSRP thresholds for determining whether a first time advance, TA, of the communication device is valid;

receiving first information from the communication device;

determining a second RSRP threshold set for the communication device according to the first information, wherein the second RSRP threshold set comprises one or more RSRP thresholds, the second RSRP threshold set is used for determining whether a second TA of the communication device is valid, the second TA is equal to the sum of the first TA and a first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to the sum of each RSRP threshold in the first RSRP threshold set and one adjustment amount;

And sending RSRP indication information to the communication equipment, wherein the RSRP indication information is used for indicating the second RSRP threshold set.

2. The method of claim 1, wherein the determining a second set of RSRP thresholds for the communication device based on the first information comprises:

Determining the second TA according to the first information, wherein the second TA is different from the first TA, and determining the second RSRP threshold set according to the second TA.

3. The method according to claim 1 or 2, wherein said transmitting RSRP indication information to said communication device comprises:

When a set of setting conditions is met, sending the RSRP indication information to the communication equipment; wherein the set of set conditions includes at least one of the following conditions:

(2) The second TA is less than a second threshold;

(3) The RSRP of the communication device is greater than a third threshold;

4. A method according to any of claims 1-3, characterized in that the RSRP indication information is carried on control information.

5. A method according to any of claims 1-3, characterized in that the RSRP indication information is carried on a data channel.

6. The method of claim 5, wherein the RSRP indication information is carried by a medium access control layer control element, MAC CE, or radio resource control, RRC, signaling transmitted in the data channel.

7. The method according to any one of claims 1-6, wherein the RSRP indication information comprises:

an adjustment amount of each RSRP threshold in the second set of RSRP thresholds relative to each RSRP threshold in the first set of RSRP thresholds; or alternatively

Each RSRP threshold in the second set of RSRP thresholds.

8. The method of claim 4, wherein the control information comprises 23 bits, wherein 1 bit is used to represent a format of the control information, 2 bits are used to represent a control information subframe repetition number, 4 bits are used to represent a modulation and coding scheme MCS,0-6 bits are used to represent the first adjustment amount or the second TA, and 1-10 bits are used to represent the RSRP indication information; or alternatively

9. A method for receiving a reference signal received power threshold, comprising:

Determining a first reference signal received power, RSRP, threshold set according to a configuration of a network device, the first RSRP threshold set comprising one or more RSRP thresholds, the first RSRP threshold set being used to determine whether a first time advance, TA, is valid;

Transmitting first information to a network device;

Receiving RSRP indication information from the network device, the RSRP indication information being used to indicate a second set of RSRP thresholds;

Determining a second RSRP threshold set according to the RSRP indicating information, wherein the second RSRP threshold set comprises one or more RSRP thresholds, the second RSRP threshold set is used for determining whether a second TA is valid, the second TA is equal to the sum of the first TA and the first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to the sum of each RSRP threshold in the first RSRP threshold set and one adjustment amount.

10. The method of claim 9, wherein the RSRP indication information is carried in control information.

11. The method of claim 9, wherein the RSRP indication information is carried on a data channel.

12. The method according to claim 11, wherein the RSRP indication information is carried by a medium access control layer control element, MAC CE, or radio resource control, RRC, signaling transmitted in the data channel.

13. The method according to any of claims 9-12, wherein the RSRP indication information comprises:

Each RSRP threshold in the second set of RSRP thresholds.

14. The method of claim 10, wherein the control information comprises 23 bits, wherein 1 bit is used to represent a format of the control information, 2 bits are used to represent a control information subframe repetition number, 4 bits are used to represent a modulation and coding scheme MCS,0-6 bits are used to represent the first adjustment amount or the second TA, and 1-10 bits are used to represent the RSRP indication information; or alternatively

15. A transmission apparatus for a reference signal received power threshold, comprising:

A processing module configured to configure a first set of reference signal received power, RSRP, thresholds for a communication device, the first set of RSRP thresholds including one or more RSRP thresholds, the first set of RSRP thresholds being used to determine whether a first time advance, TA, of the communication device is valid;

A receiving module for receiving first information from the communication device;

The processing module is further configured to determine a second RSRP threshold set for the communication device according to the first information, where the second RSRP threshold set includes one or more RSRP thresholds, the second RSRP threshold set is used to determine whether a second TA of the communication device is valid, the second TA is equal to a sum of the first TA and a first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to a sum of each RSRP threshold in the first RSRP threshold set and an adjustment amount; and determining RSRP indication information, wherein the RSRP indication information is used for indicating the second RSRP threshold set;

and the sending module is used for sending the RSRP indication information to the communication equipment.

16. The apparatus according to claim 15, wherein the processing module is configured to determine the second TA based on the first information, wherein the second TA is different from the first TA; and determining the second RSRP threshold set according to the second TA.

17. The apparatus according to claim 15 or 16, wherein the transmitting module is configured to transmit the RSRP indication information to the communication device, in particular when a set of setting conditions is met; wherein the set of set conditions includes at least one of the following conditions:

(2) The second TA is less than a second threshold;

(3) The RSRP of the communication device is greater than a third threshold;

18. The apparatus according to any of claims 15-17, wherein the RSRP indication information is carried in control information.

19. The apparatus according to any of claims 15-17, wherein the RSRP indication information is carried on a data channel.

20. The apparatus of claim 19, wherein the RSRP indication information is carried in a medium access control layer control element, MAC CE, or radio resource control, RRC, signaling transmitted in the data channel.

21. The apparatus according to any one of claims 15-20, wherein the RSRP indication information comprises:

Each RSRP threshold in the second set of RSRP thresholds.

22. The apparatus of claim 18, wherein the control information comprises 23 bits, wherein 1 bit is used to represent a format of the control information, 2 bits are used to represent a control information subframe repetition number, 4 bits are used to represent a modulation and coding scheme, MCS,0-6 bits are used to represent the first adjustment amount or the second TA, and 1-10 bits are used to represent the RSRP indication information; or alternatively

23. A reception apparatus for a reference signal reception power threshold, comprising:

A processing module, configured to determine a first set of RSRP thresholds according to a configuration of a network device, where the first set of RSRP thresholds includes one or more RSRP thresholds, and the first set of RSRP thresholds is configured to determine whether a first time advance TA is valid;

The sending module is used for sending the first information to the network equipment;

A receiving module, configured to receive RSRP indication information from the network device, where the RSRP indication information is used to indicate a second RSRP threshold set;

The processing module is further configured to determine, according to the RSRP indication information, the second RSRP threshold set, where the second RSRP threshold set includes one or more RSRP thresholds, the second RSRP threshold set is used to determine whether a second TA is valid, the second TA is equal to a sum of the first TA and a first adjustment amount, and each RSRP threshold in the second RSRP threshold set is respectively equal to a sum of each RSRP threshold in the first RSRP threshold set and an adjustment amount.

24. The apparatus of claim 23, wherein the RSRP indication information is carried in control information.

25. The apparatus of claim 23, wherein the RSRP indication information is carried in a data channel.

26. The apparatus of claim 25, wherein the RSRP indication information is carried in a medium access control layer control element, MAC CE, or radio resource control, RRC, signaling transmitted in the data channel.

27. The apparatus according to any one of claims 23-26, wherein the RSRP indication information comprises:

Each RSRP threshold in the second set of RSRP thresholds.

28. The apparatus of claim 24, wherein the control information comprises 23 bits, wherein 1 bit is used to represent a format of the control information, 2 bits are used to represent a control information subframe repetition number, 4 bits are used to represent a modulation and coding scheme, MCS,0-6 bits are used to represent the first adjustment amount or the second TA, and 1-10 bits are used to represent the RSRP indication information; or alternatively

29. A network device, comprising:

one or more processors;

a memory for storing one or more programs;

the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1-8.

30. A communication device, comprising:

one or more processors;

a memory for storing one or more programs;

the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 9-14.

31. A computer readable storage medium comprising a computer program which, when executed on a computer, causes the computer to perform the method of any of claims 1-14.

32. A computer program product comprising a computer program which, when executed by a computer, causes the computer to perform the method of any of claims 1-14.