WO2021016874A1 - Procédé et appareil d'envoi et de réception d'un seuil de puissance reçue de signal de référence - Google Patents

Procédé et appareil d'envoi et de réception d'un seuil de puissance reçue de signal de référence Download PDF

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Publication number
WO2021016874A1
WO2021016874A1 PCT/CN2019/098409 CN2019098409W WO2021016874A1 WO 2021016874 A1 WO2021016874 A1 WO 2021016874A1 CN 2019098409 W CN2019098409 W CN 2019098409W WO 2021016874 A1 WO2021016874 A1 WO 2021016874A1
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Prior art keywords
rsrp
threshold set
rsrp threshold
communication device
indicate
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PCT/CN2019/098409
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English (en)
Chinese (zh)
Inventor
米翔
铁晓磊
金哲
张力
张萌
罗之虎
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华为技术有限公司
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Priority to PCT/CN2019/098409 priority Critical patent/WO2021016874A1/fr
Priority to CN201980096528.4A priority patent/CN113892299B/zh
Publication of WO2021016874A1 publication Critical patent/WO2021016874A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access

Definitions

  • This application relates to communication technology, and in particular to a method and device for sending and receiving a reference signal received power threshold.
  • Uplink scheduling-free transmission can also be called transmission in preconfigured UL resources (PUR). ), scheduling-free transmission (grant-free transmission), or uplink transmission in pre-configured resources (UpLink transmission in preconfigured resources), etc., are all referred to as uplink scheduling-free transmission below.
  • PUR preconfigured UL resources
  • UpLink transmission in preconfigured resources etc.
  • the base station pre-configures uplink resources for the terminal equipment.
  • the terminal equipment can directly transmit the uplink data on the pre-configured uplink resources according to the predetermined transmission mode.
  • the demodulation of the uplink data sends feedback information.
  • the terminal device does not need to apply for uplink resources from the base station, nor does it need to wait for the base station to issue uplink scheduling information, which reduces the process and has the advantages of reducing power consumption delay and signaling overhead.
  • Timing Advance is to allow terminal equipment to adjust the uplink transmission time so that the uplink data sent by all terminal equipment in the cell arrive at the base station at the same time to avoid interference between users.
  • the terminal equipment can judge whether the TA is valid according to the RSRP (Reference Signal Received Power) threshold configured by the base station. Only when the TA is valid, the terminal equipment can use the uplink scheduling-free transmission technology to directly send the uplink. data. However, in the current standard discussion, the result of judging whether the TA is valid may not adapt to the change of the terminal equipment state. For example, if the terminal device uses the TA to send data when the TA is invalid, it will cause the network device to demodulate inaccurately, waste network resources and increase the power consumption of the terminal device.
  • RSRP Reference Signal Received Power
  • the terminal device If the terminal device is unable to use uplink scheduling-free transmission due to an error in the judgment of whether the TA is valid when the TA is valid, the terminal device will usually use the traditional data transmission method for data transmission in this case. Obviously, it will increase the power consumption of communication equipment and network resource overhead.
  • This application provides a method and device for sending and receiving a reference signal received power threshold, so that the result of determining whether the TA is valid can be adapted to the change of the state of the communication device. On the one hand, it reduces the power consumption of the communication device and reduces the resource overhead of the network device. On the other hand, it reduces the interference of communication equipment to other communication equipment, and also reduces unnecessary data demodulation of the communication equipment by network equipment.
  • this application provides a method for sending a reference signal received power threshold, including:
  • the first RSRP threshold set includes one or more RSRP thresholds, and the first RSRP threshold set is used to determine the first timing advance TA of the communication device Whether it is valid; receiving first information from the communication device; determining a second RSRP threshold set for the communication device according to the first information, the second RSRP threshold set including one or more RSRP thresholds, the second The RSRP threshold set is used to determine whether the second TA of the communication device is valid, the second TA is equal to the sum of the first TA and the first adjustment, 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 an adjustment value; sending RSRP indication information to the communication device, where the RSRP indication information is used to indicate the second RSRP threshold set.
  • the network device reconfigures the RSRP threshold set matching the updated TA for 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 Changes in the state of communication equipment.
  • the solution of this embodiment enables the communication device to use uplink scheduling-free transmission as much as possible, thereby reducing the power consumption of the communication device and the resource overhead of the network device as much as possible.
  • the solution of this embodiment causes the communication device to switch to the traditional data transmission method for data transmission in this case, which reduces the interference of the communication device to other communication devices as much as possible, and also reduces The network device demodulates unnecessary data from the communication device.
  • 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 Different from the first TA, and determine the second RSRP threshold set according to the second TA.
  • the network device determines the second RSRP threshold set according to the second TA only when the TA update is required.
  • the sending RSRP indication information to the communication device includes: sending the RSRP indication information to the communication device when a set of set conditions is met; wherein, the set condition The set includes at least one of the following conditions:
  • the second TA is less than a second threshold
  • the RSRP indication information is carried in control information.
  • the RSRP indication information is carried on a data channel.
  • the RSRP indication information is carried in the media access control layer control element MAC CE or radio resource control RRC signaling transmitted in the data channel.
  • the RSRP indication information includes: an adjustment amount of each RSRP threshold in the second RSRP threshold set relative to each RSRP threshold in the first RSRP threshold set; or, Each RSRP threshold in the second RSRP threshold set.
  • control information includes 23 bits, of which at least 1 bit is used to represent the RSRP indication information.
  • control information includes 23 bits, where:
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 4 bits are used to indicate the modulation and coding mode MCS
  • 0-6 bits are used to indicate the first For the adjustment amount or the second TA
  • 1-10 bits are used to represent the RSRP indication information
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 1 bit is used to indicate the new data indicator
  • 1-19 bits are used to indicate the RSRP indicator information ;or
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 6 bits are used to indicate the subcarrier indication
  • 1-14 bits are used to indicate the RSRP indication information.
  • 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.
  • the first information is uplink data and/or uplink control signaling carried on a data channel.
  • the first information is a preamble carried on a random access channel.
  • the second information may be sent to the network device.
  • the second information and the sending method are similar to the above-mentioned first information.
  • this application provides a method for receiving a reference signal received power threshold, including:
  • the first RSRP threshold set includes one or more RSRP thresholds, and the first RSRP threshold set is used to determine whether the first timing advance TA is valid;
  • 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 the sum of the first TA and the first adjustment, and the first 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 an adjustment value.
  • the communication device judges whether the updated TA is valid based on the new RSRP threshold set configured by the network device, and the judgment result is adapted to the change of the state of the communication device.
  • the solution of this embodiment enables the communication device to use uplink scheduling-free transmission as much as possible, thereby reducing the power consumption of the communication device and the resource overhead of the network device as much as possible.
  • the solution of this embodiment causes the communication device to switch to the traditional data transmission method for data transmission in this case, which reduces the interference of the communication device to other communication devices as much as possible, and also reduces the network
  • the road equipment demodulates unnecessary data from the communication equipment.
  • the RSRP indication information is carried in control information.
  • the RSRP indication information is carried on a data channel.
  • the RSRP indication information is carried in the media access control layer control element MAC CE or radio resource control RRC signaling transmitted in the data channel.
  • the RSRP indication information includes: an adjustment amount of each RSRP threshold in the second RSRP threshold set relative to each RSRP threshold in the first RSRP threshold set; or, Each RSRP threshold in the second RSRP threshold set.
  • control information includes 23 bits, of which at least 1 bit is used to represent the RSRP indication information.
  • control information includes 23 bits, where:
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 4 bits are used to indicate the modulation and coding mode MCS
  • 0-6 bits are used to indicate the first For the adjustment amount or the second TA
  • 1-10 bits are used to represent the RSRP indication information
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 1 bit is used to indicate the new data indicator
  • 1-19 bits are used to indicate the RSRP indicator information ;or
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 6 bits are used to indicate the subcarrier indication
  • 1-14 bits are used to indicate the RSRP indication information.
  • 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.
  • the first information is uplink data and/or uplink control signaling carried on a data channel.
  • the first information is a preamble carried on a random access channel.
  • the second information may be sent to the network device.
  • the second information and the sending method are similar to the above-mentioned first information.
  • the present application provides a device for sending a reference signal received power threshold, including:
  • a processing module configured to configure a first reference signal received power RSRP threshold set for a communication device, the first RSRP threshold set includes one or more RSRP thresholds, and the first RSRP threshold set is used to determine the first RSRP threshold set of the communication device Whether a timing advance TA is valid;
  • the receiving module is configured to receive 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, so
  • the second RSRP threshold set includes one or more RSRP thresholds, the second RSRP threshold set is used to determine whether the second TA of the communication device is valid, and the second TA is equal to the first TA and the first adjustment
  • Each RSRP threshold in the second RSRP threshold set is equal to the sum of each RSRP threshold in the first RSRP threshold set and an adjustment amount; and determining RSRP indication information, the RSRP indication information It is used to indicate the second RSRP threshold set;
  • the sending module is used to send
  • 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; according to the second TA Determine the second RSRP threshold set.
  • the sending module is specifically configured to send the RSRP indication information to the communication device when the set condition set is met; wherein, the set condition set includes at least one of the following conditions :
  • the second TA is less than a second threshold
  • the RSRP indication information is carried in control information.
  • the RSRP indication information is carried on a data channel.
  • the RSRP indication information is carried in the media access control layer control element MAC CE or radio resource control RRC signaling transmitted in the data channel.
  • the RSRP indication information includes: an adjustment amount of each RSRP threshold in the second RSRP threshold set relative to each RSRP threshold in the first RSRP threshold set; or, Each RSRP threshold in the second RSRP threshold set.
  • control information includes 23 bits, of which at least 1 bit is used to represent the RSRP indication information.
  • control information includes 23 bits, where:
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 4 bits are used to indicate the modulation and coding mode MCS
  • 0-6 bits are used to indicate the first For the adjustment amount or the second TA
  • 1-10 bits are used to represent the RSRP indication information
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 1 bit is used to indicate the new data indicator
  • 1-19 bits are used to indicate the RSRP indicator information ;or
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 6 bits are used to indicate the subcarrier indication
  • 1-14 bits are used to indicate the RSRP indication information.
  • 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.
  • the first information is uplink data and/or uplink control signaling carried on a data channel.
  • the first information is a preamble carried on a random access channel.
  • the second information may be sent to the network device.
  • the second information and the sending method are similar to the above-mentioned first information.
  • this application provides a reference signal receiving power threshold receiving device, including:
  • the processing module is configured to determine a first reference signal received power RSRP threshold set according to the configuration of the network device, the first RSRP threshold set includes one or more RSRP thresholds, and the first RSRP threshold set is used to determine the first timing advance Whether the quantity TA is valid; the sending module is used to send the first information to the network device; the receiving module is used to receive RSRP indication information from the network device, the RSRP indication information is used to indicate the second RSRP threshold set; the processing The module is further configured to determine the second RSRP threshold set according to the RSRP indication information, the second RSRP threshold set includes one or more RSRP thresholds, and the second RSRP threshold set is used to determine whether the second TA is valid , The second TA is equal to the sum of the first TA and the first adjustment, and each RSRP threshold in the second RSRP threshold set is respectively equal to each RSRP threshold in the first RSRP threshold set and one The sum of adjustments.
  • the RSRP indication information is carried in control information.
  • the RSRP indication information is carried on a data channel.
  • the RSRP indication information is carried in the media access control layer control element MAC CE or radio resource control RRC signaling transmitted in the data channel.
  • the RSRP indication information includes: an adjustment amount of each RSRP threshold in the second RSRP threshold set relative to each RSRP threshold in the first RSRP threshold set; or, Each RSRP threshold in the second RSRP threshold set.
  • control information includes 23 bits, of which at least 1 bit is used to represent the RSRP indication information.
  • control information includes 23 bits, where:
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 4 bits are used to indicate the modulation and coding mode MCS
  • 0-6 bits are used to indicate the first For the adjustment amount or the second TA
  • 1-10 bits are used to represent the RSRP indication information
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 1 bit is used to indicate the new data indicator
  • 1-19 bits are used to indicate the RSRP indicator information ;or
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 6 bits are used to indicate the subcarrier indication
  • 1-14 bits are used to indicate the RSRP indication information.
  • 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.
  • the first information is uplink data and/or uplink control signaling carried on a data channel.
  • the first information is a preamble carried on a random access channel.
  • the second information may be sent to the network device.
  • the second information and the sending method are similar to the above-mentioned first information.
  • this application provides a network device, including:
  • One or more processors are One or more processors;
  • Memory used to store one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of the above-mentioned first aspects.
  • this application provides a communication device, including:
  • One or more processors are One or more processors;
  • Memory used to store one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of the above second aspects.
  • the present application provides a computer-readable storage medium including a computer program, which when executed on a computer, causes the computer to execute the method described in any one of the first to second aspects.
  • this application provides a computer program, when the computer program is executed by a computer, it is used to execute the method described in any one of the first to second aspects.
  • Figure 1 is an example diagram of a communication system to which the RSRP threshold transmission method of this application is applicable;
  • FIG. 2 is a flowchart of an embodiment of a transmission method for RSRP threshold of this application
  • FIG. 3 is a schematic structural diagram of an embodiment of a transmission device for RSRP threshold of this application.
  • FIG. 4 is a schematic structural diagram of a communication device provided by this application.
  • Figure 5 is a schematic structural diagram of a network device provided by this application.
  • At least one (item) refers to one or more, and “multiple” refers to two or more.
  • “And/or” is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, “A and/or B” can mean: only A, only B, and both A and B , Where A and B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • the following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • At least one (a) of a, b or c can mean: a, b, c, "a and b", “a and c", “b and c", or "a and b and c" ", where a, b, and c can be single or multiple.
  • FIG. 1 is an example diagram of a communication system to which the RSRP threshold transmission method of this application is applicable.
  • the communication system for example, Long Term Evolution (LTE), may include a base station (Base Station) and user equipment (User Equipment, UE) 1-6, UE1-UE6 send the first information to the base station.
  • UE4-UE6 can also form a communication system in which the base station can send downlink information to UE1, UE2, UE3, and UE5, and UE5 can also send downlink information to UE4 and UE6.
  • the RSRP threshold transmission method provided in this application is not only applicable to the above-mentioned LTE system, but also applicable to other communication systems, such as 5G NR (New Radio) system, Global System for Mobile Communication , GSM), Mobile Communication System (Universal Mobile Telecommunications System, UMTS), Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, narrowband object Networking (Narrow Band Internet of Things, NB-IoT) system, enhanced Machine-Type Communication (eMTC) system and other communication systems, etc.
  • 5G NR New Radio
  • GSM Global System for Mobile Communication
  • UMTS Universal Mobile Telecommunications System
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • NB-IoT narrowband object Networking
  • eMTC enhanced Machine-Type Communication
  • the above-mentioned network equipment can be used to convert the received air frame and Internet Protocol (IP) packets to each other, and act as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include IP network.
  • IP Internet Protocol
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment 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 eNodeB) in LTE. -NodeB), this application does not specifically limit this.
  • the aforementioned communication device may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the communication device can communicate with one or more core networks via the Radio Access Network (RAN).
  • RAN Radio Access Network
  • the communication device can be a mobile terminal, such as a mobile phone (or “cellular” phone) and a computer with a mobile terminal It can also be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the wireless access network.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless Local Loop
  • PDA Personal Digital Assistant
  • Communication equipment can also be called system, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), mobile station (Mobile Station), mobile station (Mobile), 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 thresholds of this 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 RSRP threshold set includes one or more RSRP thresholds, and the first RSRP threshold set is used to determine whether the first TA of the communication device is valid (valid). That is, the communication device may determine whether the first TA is valid according to one or more RSRP thresholds in the first RSRP threshold set.
  • the communication device considers the first TA valid when
  • ⁇ NRSRP threshold is satisfied, where NRSRP change NRSRP now- NRSRP ref , and NRSRP now represents the communication device
  • NRSRP ref represents the RSRP reference value, which can be the RSRP value measured by the communication device last time, or the RSRP value measured when the communication device obtains the first TA. This application will not be specific limited.
  • the communication device considers the first TA to be valid when NRSRP threshold1 ⁇ NRSRP change ⁇ NRSRP threshold2 is satisfied.
  • the role of the first TA is to allow the communication equipment to adjust the uplink transmission time so that the uplink data sent by all communication equipment in the cell arrive at the network equipment at the same time to avoid interference between users.
  • the network device configures the first TA and the first RSRP threshold set for the communication device.
  • the communication device can determine whether the first TA is valid according to one or more RSRP thresholds in the first RSRP threshold set. Only when a TA is valid, the communication device can directly send uplink data using the uplink scheduling-free transmission technology.
  • the network device may directly send the first TA configured to the communication device to the communication device.
  • the measured RSRP value may also be the RSRP value measured when the communication device obtains the first TA, which is not specifically limited in this application.
  • Step 202 The communication device sends the 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 carried on a random access channel (Random Access Channel, RACH).
  • RACH Random Access Channel
  • the first information may be uplink data and/or uplink control signaling carried on the data channel.
  • the first information may be the preamble carried on the random access channel.
  • Step 203 The network device determines a second RSRP threshold set for the communication device according to the first information.
  • the second RSRP threshold set includes one or more RSRP thresholds, the second RSRP threshold set is used to determine whether the second TA of the communication device is valid, the second TA is equal to the sum of the first TA and the first adjustment, and the second RSRP threshold set Each RSRP threshold in is equal to the sum of each RSRP threshold in the first RSRP threshold set and an adjustment value.
  • the role of the second TA is to allow the communication equipment to adjust the uplink transmission time in time during the data transmission process of the network equipment and the communication equipment, so that the uplink data sent by all communication equipment in the cell arrives at the network equipment at the same time to avoid interference between users .
  • TA changes from the first TA to the second TA, and the location of the communication equipment may also change. If as described above, the first RSRP threshold set is used to determine the communication. Whether the second TA of the device is valid is likely to be inaccurate. Therefore, the first RSRP threshold set needs to be adjusted, and the adjusted second RSRP threshold set is used to determine whether the second TA is valid.
  • the network device may determine the second TA according to the first information, and then determine whether a TA update is required according to the first TA and the second TA. For example, the difference between the second TA and the first TA indicates that the TA update is required. If it is determined that a TA update is required, the second RSRP threshold set is determined according to the second TA, that is, the network device determines the second RSRP threshold set according to the second TA only when the TA update is required.
  • the network device can send the second TA to the communication device in two ways: one is that the network device directly sends the second TA configured to the communication device to the communication device; the other is that the network device sends the second TA relative to the first TA The first adjustment amount is sent to the communication device.
  • the first TA corresponding to the distance network device configuration is 19, and the first RSRP threshold set includes two thresholds -6.3dB and 10.3dB.
  • the communication device moves 500m away from the network device (1500m ⁇ 2000m).
  • the RSRP threshold set is not updated, the judgment of whether the TA is valid may be inaccurate, that is, the first TA has actually failed, but the communication device judges that the first TA is valid according to the first RSRP threshold set.
  • the communication device will use the first TA to send uplink data, resulting in inaccurate demodulation by the network device, wasting network resources, and increasing the power consumption of the communication device , And cause interference with other communication equipment. Therefore, when the communication device is far away from the network device, the interval of the RSRP threshold set should be small. Or in the process of data transmission between the communication device and the network device, the communication device moves 500m (1500m ⁇ 1000m) toward the network device. If the RSRP threshold set is not updated at this time, the judgment of whether the TA is valid may be inaccurate. A TA is actually still valid, but the communication device judges that the first TA is invalid according to the first RSRP threshold set, which results in the communication device not being able to use uplink scheduling-free transmission.
  • the communication device usually uses the traditional data transmission method for data transmission. Compared with uplink scheduling-free transmission, using traditional data transmission methods for data transmission will increase the power consumption of communication equipment and network resource overhead. Therefore, when the communication device faces the network device, the interval of the RSRP threshold set should be large.
  • NRSRP change NRSRP now- NRSRP ref
  • NRSRP ref represents the RSRP reference value, which can be It is the RSRP value measured by the communication device last time, or it can be the RSRP value measured when the communication device obtains the first TA. This application does not specifically limit this.
  • ⁇ away dB and ⁇ close dB are two of the RSRP threshold set. RSRP threshold.
  • the network device adjusts the TA of the communication device from 19 (first TA) to 26 (second TA).
  • the second RSRP threshold set includes two The threshold is -4.9dB and 7.1dB.
  • the network device adjusts the TA of the communication device from 19 (first TA) to 13 (second TA).
  • the second RSRP threshold set includes two The threshold is -8.7dB and 19.8dB.
  • the second TA (26) is equal to the sum of the first TA (19) and the first adjustment (7).
  • the second TA (13) is equal to the sum of the first TA (19) and the first adjustment (-6).
  • the first adjustment amount is 0. At this time, the first TA and the second TA are equal, and no TA update is required.
  • the ⁇ away (first RSRP threshold)-6.3dB in the interval of the first RSRP threshold set becomes the interval of the second RSRP threshold set.
  • ⁇ close (second RSRP threshold) 10.3dB in the interval of the first RSRP threshold set becomes the interval of the second RSRP threshold set
  • ⁇ close (the second RSRP threshold) is 7.1dB
  • the adjustment amount of ⁇ close is -3.2dB.
  • the ⁇ away (first RSRP threshold)-6.3dB in the interval of the first RSRP threshold set becomes ⁇ away ( The first RSRP threshold) -8.7dB
  • the ⁇ away adjustment is -2.4B
  • the ⁇ close (second RSRP threshold) 10.3dB in the interval of the first RSRP threshold set becomes ⁇ close in the interval of the second RSRP threshold set (The second RSRP threshold) 19.8dB
  • the ⁇ close adjustment amount is 9.5dB.
  • some RSRP thresholds in the RSRP threshold set may change, that is, some RSRP thresholds in the RSRP threshold set correspond to an adjustment value of 0; there may also be no RSRP threshold set
  • the change situation 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, and the RSRP indication information may be carried in control information, such as Downlink Control Information (DCI).
  • DCI Downlink Control Information
  • Table 2 shows the DCI in the NO format in the existing protocol, and the DCI is used to send an uplink grant (UL grant).
  • this application provides three new NO format DCIs shown in Table 3-5. It should be noted that the DCI of the NO format shown in Table 3-5 is just a few examples, and this application does not specifically limit the DCI that carries the RSRP indication information.
  • 1 bit is used to indicate the format of DCI
  • 2 bits are used to indicate the number of DCI subframe repetitions
  • 4 bits are used to indicate MCS
  • I MCS 14 indicates that this is a new DCI format
  • 0-6 bits are used to indicate the adjustment amount of the second TA relative to the first TA or the second TA
  • 1-10 bits are used to indicate RSRP indication information.
  • 1 bit is used to indicate the format of DCI
  • 2 bits are used to indicate the number of DCI subframe repetitions
  • 1 bit is used to indicate the new data indicator NDI
  • a state of NDI is used to indicate whether this is
  • 1-19 bits are used to indicate RSRP indication information.
  • 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 the subcarrier indication.
  • Use the reservation status indication in the subcarrier indication This is a new DCI format.
  • 1-14 bits are used to indicate RSRP indication information.
  • the network device sends RSRP indication information to the communication device, and may also carry the RSRP indication information on the data channel.
  • the network device may carry the RSRP indication information in a media 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.
  • Media Access Control Control Element Media Access Control Control Element, MAC CE
  • Radio Resource Control Radio Resource Control
  • the RSRP thresholds in the first RSRP threshold set and the second RSRP threshold set are in one-to-one correspondence.
  • the first RSRP threshold in the first RSRP threshold set corresponds to the first RSRP threshold in the second RSRP threshold set.
  • the former and the corresponding adjustments are summed to obtain the latter.
  • the second RSRP threshold in the first RSRP threshold set corresponds to the second RSRP threshold in the second RSRP threshold set.
  • the former and the corresponding adjustments are summed to obtain the By.
  • the RSRP indication information may include the adjustment amount of each RSRP threshold in the second RSRP threshold set relative to each RSRP threshold in the first RSRP threshold set, that is, the network device carries the second RSRP in the RSRP indication information.
  • the adjustment value corresponding to each RSRP threshold in the threshold set may also include each RSRP threshold in the second RSRP threshold set, that is, the RSRP indication information carried by the network device is each RSRP threshold in the second RSRP threshold set.
  • the network device may carry in the RSRP indication information the adjustment amount of the RSRP threshold in the second RSRP threshold set with respect to the RSRP threshold in the first RSRP threshold set, and the network device may send the adjustment amount.
  • the network device sends a scale factor
  • the communication device obtains the RSRP threshold in the second RSRP threshold set according to the scale factor and the RSRP threshold in the first RSRP threshold set.
  • the adjustment value sent by the network device is set in a set.
  • the adjustment value sent by the network device is in multiple sets, and the value range and/or quantization accuracy of each set are not completely the same.
  • there are two sets of adjustment values namely ⁇ 12, ⁇ 10, ⁇ 8, ⁇ 6, ⁇ 4, ⁇ 2, ⁇ 1 ⁇ and ⁇ 1, ⁇ 0.5 ⁇
  • the network device can send instructions Inform which set the currently sent adjustment value is in, or the communication device judges which set the currently sent adjustment value is in according to a pre-agreed rule.
  • the agreed rule can be: when the TA value of the communication device is less than a certain set For threshold, use set ⁇ 12, ⁇ 10, ⁇ 8, ⁇ 6, ⁇ 4, ⁇ 2, ⁇ 1 ⁇ ; otherwise, use set ⁇ 1, ⁇ 0.5 ⁇ .
  • each adjustment when the number of adjustments sent by the network device is greater than one, each adjustment can be in different sets, and the value range and/or quantization accuracy of each set are not completely the same.
  • the number of adjustments sent by the current network device is 2
  • the value set of the first adjustment can be ⁇ 2, ⁇ 1, ⁇ 0.5, ⁇ 0.25 ⁇
  • the value set of the second adjustment can be It is ⁇ 8, ⁇ 6, ⁇ 4, ⁇ 2 ⁇ .
  • the network device sends RSRP indication information to the communication device only when the set condition set is met; wherein the set condition set includes at least one of the following conditions:
  • judgment conditions of less than and/or greater in the above condition set can also be changed to less than or equal to, greater than or equal to, according to the actually set threshold, which is not specifically limited in this application.
  • the above set of conditions can also be:
  • the distance from the communication device to the base station of the current serving cell is less than or equal to the seventh threshold
  • the second TA is less than or equal to the eighth threshold
  • the RSRP of the communication device is greater than or equal to the ninth threshold
  • the absolute values of two RSRP thresholds in the second RSRP threshold set are greater than or equal to the eleventh threshold and the twelfth threshold, respectively.
  • the present application may meet the set condition set, that is, (1) the distance between the communication device and the base station of the current serving cell is greater than the first threshold; (2) the second TA is greater than the second threshold; (3) the RSRP of the communication device Less than the third threshold; (4) the absolute value of at least one RSRP threshold in the second RSRP threshold set is less than the fourth threshold; (5) the absolute value of two RSRP thresholds in the second RSRP threshold set is less than the fifth threshold and The sixth threshold, the network device does not update the RSRP threshold set, nor does it need to send RSRP indication information to the communication device.
  • the network device in this application can only send RSRP indication information to the communication device when certain conditions are met.
  • Step 205 The communication device determines a second RSRP threshold set according to the RSRP indication information.
  • the communication device combines each of the RSRP threshold sets in accordance with the foregoing adjustment amount.
  • the RSRP threshold is calculated to obtain each RSRP threshold in the second RSRP threshold set; if the RSRP indication information includes each RSRP threshold communication device in the second RSRP threshold set, the communication device directly obtains each RSRP in the second RSRP threshold set Threshold.
  • the communication device can determine whether the second TA is valid according to one or more RSRP thresholds in the second RSRP threshold set. Exemplary:
  • the communication device considers the second TA valid when
  • ⁇ NRSRP threshold , where NRSRP change NRSRP now- NRSRP ref .
  • the communication device considers that the second TA is valid when NRSRP threshold1 ⁇ NRSRP change ⁇ NRSRP threshold2 is satisfied.
  • the network device reconfigures the RSRP threshold set matching the updated TA for 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 Changes in the state of communication equipment.
  • the solution of this embodiment enables the communication device to use uplink scheduling-free transmission as much as possible, thereby reducing the power consumption of the communication device and the resource overhead of the network device as much as possible.
  • the solution of this embodiment causes the communication device to switch to the traditional data transmission method for data transmission in this case, which reduces the interference of the communication device to other communication devices as much as possible, and also reduces The network device demodulates unnecessary data from the communication device.
  • FIG. 3 is a schematic structural diagram of an embodiment of a transmission device for RSRP threshold of this application.
  • the device in this embodiment may be a sending device or a receiving device of a network device in the communication system shown in FIG. Device, the device may include: a processing module 301, a receiving module 302, and a sending module 303.
  • the processing module 301 is configured to configure a first reference signal received power RSRP threshold set for the communication device, and the first RSRP threshold set includes one or Multiple RSRP thresholds, the first RSRP threshold set is used to determine whether the first timing advance TA of the communication device is valid; the receiving module 302 is used to receive first information from the communication device; the processing module 301 And is further configured to determine a second RSRP threshold set for the communication device according to the first information, the second RSRP threshold set includes one or more RSRP thresholds, and the second RSRP threshold set is used to determine the communication Whether the second TA of the device is valid, the second TA is equal to the sum of the first TA and the first adjustment, and each RSRP threshold in the second RSRP threshold set is equal to the first RSRP threshold set The sum of each RSRP threshold and an adjustment amount; and determine RSRP indication information, where the RSRP indication
  • 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; according to the second TA The TA determines the second RSRP threshold set.
  • the sending module 303 is specifically configured to send the RSRP indication information to the communication device when the set condition set is met; wherein the set condition set includes at least one of the following condition:
  • the second TA is less than a second threshold
  • the processing module 301 is configured to determine a first reference signal received power RSRP threshold set according to the configuration of the network device, and the first RSRP threshold set includes One or more RSRP thresholds, the first set of RSRP thresholds is used to determine whether the first timing advance TA is valid; the sending module 303 is used to send the first information to the network device; the receiving module 302 is used to send information from the network The device receives RSRP indication information, where the RSRP indication information is used to indicate a second RSRP threshold set; the processing module 301 is further configured to determine the second RSRP threshold set according to the RSRP indication information, and the second RSRP threshold The 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 the sum of the first TA and the first adjustment, the second RSRP threshold Each RSRP threshold in
  • the RSRP indication information is carried in control information.
  • the RSRP indication information is carried on a data channel.
  • the RSRP indication information is carried in the media access control layer control element MAC CE or radio resource control RRC signaling transmitted in the data channel.
  • the RSRP indication information includes: an adjustment amount of each RSRP threshold in the second RSRP threshold set relative to each RSRP threshold in the first RSRP threshold set; or, Each RSRP threshold in the second RSRP threshold set.
  • control information includes 23 bits, of which at least 1 bit is used to represent the RSRP indication information.
  • control information includes 23 bits, where:
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 4 bits are used to indicate the modulation and coding mode MCS
  • 0-6 bits are used to indicate the first For the adjustment amount or the second TA
  • 1-10 bits are used to represent the RSRP indication information
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 1 bit is used to indicate the new data indicator
  • 1-19 bits are used to indicate the RSRP indicator information ;or
  • 1 bit is used to indicate the format of the control information
  • 2 bits are used to indicate the number of control information subframe repetitions
  • 6 bits are used to indicate the subcarrier indication
  • 1-14 bits are used to indicate the RSRP indication information.
  • 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.
  • the first information is uplink data and/or uplink control signaling carried on a data channel.
  • the first information is a preamble carried on a random access channel.
  • the second information may be sent to the network device.
  • the second information and the sending method are similar to the above-mentioned first information.
  • the device in this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 2, and its implementation principles and technical effects are similar, and will not be repeated here.
  • Fig. 4 is a schematic structural diagram of a communication device provided by this application.
  • 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 includes a processor 401 and a transceiver 402.
  • the communication device 400 further includes a memory 403.
  • the processor 401, the transceiver 402, and the memory 403 can communicate with each other through an internal connection path to transmit control signals and/or data signals.
  • the memory 403 is used to store computer programs.
  • the processor 401 is configured to execute a computer program stored in the memory 403, so as to implement various functions in the foregoing device embodiments.
  • the processor 401 may be used to perform operations and/or processing performed by the processing module 301 described in the apparatus embodiment (for example, FIG. 3), and the transceiver 402 may be used to perform operations performed by the receiving module 302 and the sending module 303. Operation and/processing.
  • the memory 403 may also be integrated in the processor 401 or independent of the processor 401.
  • the communication device 400 may further include an antenna 404 for transmitting the signal output by the transceiver 402.
  • the transceiver 402 receives signals through an antenna.
  • the communication device 400 may further include a power supply 405 for providing power to various devices or circuits in the device.
  • a power supply 405 for providing power to various devices or circuits in the device.
  • the communication device 400 may also include one of an input unit 406, a display unit 407 (also can be regarded as an output unit), an audio circuit 408, a camera 409, a sensor 410, etc. Multiple.
  • the audio circuit may also include a speaker 4081, a microphone 4082, etc., which will not be repeated.
  • FIG. 5 is a schematic structural diagram of a network device provided by this application.
  • the network equipment 500 includes an antenna 501, a radio frequency device 502, and a baseband device 503.
  • the antenna 501 is connected to the radio frequency device 502.
  • the radio frequency device 502 receives the signal from the communication device through the antenna 501, and sends the received signal to the baseband device 503 for processing.
  • the baseband device 503 In the downlink direction, the baseband device 503 generates a signal that needs to be sent to the communication device, and sends the generated signal to the radio frequency device 502.
  • the radio frequency device 502 transmits the signal through the antenna 501.
  • the baseband device 503 may include one or more processing units 5031.
  • the processing unit 5031 may specifically 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 to store computer programs and/or data.
  • the communication interface 5033 is used to exchange information with the radio frequency device 502.
  • the storage unit 5032 may specifically be a memory, and the communication interface 5033 may be an input/output interface or a transceiver circuit.
  • the storage unit 5032 may be a storage unit on the same chip as the processing unit 5031, that is, an on-chip storage unit, or a storage unit on a different chip from the processing unit 5031, that is, an off-chip storage unit. This application does not limit this.
  • the baseband device 503 may perform operations and/or processing performed by the processing module 301 in the device embodiment (for example, FIG. 3).
  • the radio frequency device 502 may perform operations and/or processing performed by the receiving module 302 and the sending module 303 in the device embodiment (for example, FIG. 3).
  • This application also provides a computer-readable storage medium on which a computer program is stored.
  • the computer program When the computer program is executed by a computer, the computer executes the steps and/or steps in the method embodiment shown in FIG. 2 above. Or processing.
  • the computer program product includes computer program code.
  • the computer program code runs on a computer, the computer executes the steps and/or processing in the method embodiment shown in FIG. 2 .
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the processor can be a general-purpose processor, digital signal processor (digital signal processor, DSP), application-specific integrated circuit (ASIC), field programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware encoding processor, or executed and completed by a combination of hardware and software modules in the encoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory mentioned in the above embodiments may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct rambus RAM direct rambus RAM
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • 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, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (personal computer, server, or network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

La présente invention concerne un procédé et un appareil d'envoi et de réception d'un seuil de puissance reçue de signal de référence (RSRP). D'après la présente invention, le procédé d'envoi du seuil de RSRP comprend les étapes consistant à : configurer un premier ensemble de seuils de RSRP pour un dispositif de communication, le premier ensemble de seuils de RSRP étant utilisé pour déterminer si un premier TA du dispositif de communication est valide ; recevoir des premières informations provenant du dispositif de communication ; déterminer un second ensemble de seuils de RSRP pour le dispositif de communication en fonction des premières informations, le second ensemble de seuils de RSRP contenant un ou plusieurs seuils de RSRP et étant utilisé pour déterminer si un second TA du dispositif de communication est valide ; et envoyer des informations d'indication de RSRP au dispositif de communication, les informations d'indication de RSRP étant utilisées pour indiquer le second ensemble de seuils de RSRP. D'après la présente invention, le résultat de détermination indiquant si le TA est valide peut varier en fonction du changement de l'état du dispositif de communication. D'une part, la consommation d'énergie du dispositif de communication est réduite et le surdébit de ressources d'un dispositif de réseau est réduit. D'autre part, l'interférence du dispositif de communication sur d'autres dispositifs de communication est réduite et la démodulation inutile du dispositif de réseau sur le dispositif de communication est également réduite.
PCT/CN2019/098409 2019-07-30 2019-07-30 Procédé et appareil d'envoi et de réception d'un seuil de puissance reçue de signal de référence WO2021016874A1 (fr)

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CN201980096528.4A CN113892299B (zh) 2019-07-30 2019-07-30 参考信号接收功率阈值的发送和接收方法及装置

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US20180270713A1 (en) * 2017-03-17 2018-09-20 Ofinno Technologies, Llc Cell Selection of Inactive State Wireless Device
CN108633086A (zh) * 2017-03-21 2018-10-09 华为技术有限公司 一种上行传输方法及装置
WO2019125863A1 (fr) * 2017-12-19 2019-06-27 Qualcomm Incorporated Synchronisation temporelle pour communications sans fil

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