CN113728556B

CN113728556B - Communication method and device

Info

Publication number: CN113728556B
Application number: CN201980095789.4A
Authority: CN
Inventors: 毕文平; 余政; 杨育波; 王宏; 程型清
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2023-11-03
Anticipated expiration: 2039-04-30
Also published as: WO2020220351A1; CN113728556A

Abstract

A communication method and device are used for solving the problem of how to report CQI and the repetition number of control channels by UE. The method comprises the following steps: the first equipment determines first information, wherein the first information is used for the type of channel state information reported by second equipment in a plurality of channel state information types; the first device sends a first message to the second device, the first message carrying first information.

Description

Communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus.

Background

Currently, the fourth generation communication system, the evolved long term evolution (long term evolution-advanced, LTE-a), will continue to provide wireless communication services to its User Equipment (UE) for a short period of time (even long term). In particular, enhanced machine type communication (enhanced machine type communication, eMTC) systems and other evolution systems (e.g., furtheremtc (FeMTC), even Further eMTC (eFeMTC), additional MTC (AMTC)) are systems derived on the basis of LTE, and eMTC systems and other evolution systems operate in LTE systems and in LTE frequency bands. To save power consumption and reduce costs, the operating bandwidth of eMTC terminals may typically be smaller than that of LTE systems, e.g. the operating bandwidth of eMTC terminals may be one narrowband NB, one NB comprising 6 consecutive physical resource blocks (physical resourceblock, PRB), one PRB comprising 12 Subcarriers (SC). Due to the characteristics of low power consumption, long dormancy and the like, the battery life of the eMTC UE is longer, and the expected battery life can reach about 10 years.

A new channel state information reporting mechanism is introduced into Rel-16, namely, the repetition number of the control channel is reported according to downlink measurement. But in eMTC of Rel-13, reporting of channel quality indication (channel quality indicator, CQI) has been introduced for coverage enhancement mode a or coverage enhancement level 0 or coverage enhancement level 1 (CEModeA) users, how the UE reports the above two channel state information is an unresolved issue.

Disclosure of Invention

The embodiment of the application provides a communication method and equipment, which are used for solving the problem of how to report CQI and control channel repetition times by UE.

In a first aspect, an embodiment of the present application provides a communication method, including: the method comprises the steps that first equipment determines first information, wherein the first information is used for indicating the type of channel state information reported by second equipment, and the type is one of a plurality of channel state information types; the first device sends a first message to the second device, the first message carrying (or including or containing) first information. In the embodiment of the application, by defining the relation between the CQI and the repetition number of the two channel state information, the first information indicates the second equipment how to report the CQI and the repetition number of the two channel state information, so that the reporting accuracy of the channel state information can be improved, the scheduling accuracy can be improved, and the resource utilization rate can be improved.

In one possible design, the first message may further carry second information, where the second information is used to trigger the second device to report channel state information corresponding to the indicated type. By the design, the first information and the second information can be carried by one message, so that signaling resources can be saved.

In one possible design, the first device may send a second message to the second device, the second message carrying second information, the second information being used to trigger the second device to report channel state information. The design can improve flexibility by decoupling the first information and the second information.

In one possible design, the first message may further carry third information, where the third information is used to indicate a bandwidth and/or a bandwidth location corresponding to the channel state information. By the design, the first information and the third information can be carried by one message, so that signaling resources can be saved.

In one possible design, the first device may send a third message to the second device, where the third message carries third information, and the third information is further used to indicate a bandwidth and/or a bandwidth location corresponding to the channel state information. The design can improve flexibility by decoupling the first information and the third information.

In one possible design, the third message may also carry the second information.

In one possible design, the first message is a random access response message media intervention control layer protocol data unit RandomAccess Response MAC PDU or the first message is a random access response message media intervention control layer protocol data unit control element Random Access Response MAC CE.

In one possible design, the second message and/or the third message may also be RandomAccess Response MAC PDU, or Random Access Response MAC CE.

In one possible design, the first information may be indicated by a sub-header of a MAC header field of the first message.

In one possible design, the subheader includes E/T/R/R/BI fields, and the first information may be indicated by a first and/or second R field of the subheader, or the first and/or second R field of the subheader may be used to indicate the first information.

In one possible design, the second information may also be indicated by the first and/or second R fields of the subheader, or the first and/or second R fields of the subheader may be used to indicate the second information.

In one possible design, the subheader includes an E/T/RAPID field, and the first information may be indicated by or used by the RAPID field of the subheader.

In one possible design, the second information may be indicated by the RAPID field of the subheader, or the RAPID field of the subheader may be used to indicate the second information.

In one possible design, the first message may be indicated for a MAC CE or MAC PDU.

In one possible design, the second message and/or the third message may also be indicated by a MAC CE or a MAC PDU. The MAC CE and the MAC PDU may be sent by the first device for the second device in the connected state.

In one possible design, a logical channel identification LCID field of a subheader of an uplink-shared channel (UL-SCH)/downlink-shared channel (DL-SCH) MAC CE or a subheader of an UL-SCH/DL-SCH MAC PDU may be a first value.

In one possible design, the sub-header of the UL-SCH/DL-SCH MAC PDU includes an R/F2/E/LCID field, and the first information may be indicated by at least one of the R/F2/E fields of the sub-header of the UL-SCH/DL-SCH MAC PDU.

In one possible design, the first message may be control information.

In one possible design, the second message and/or the third message may also be control information.

In one possible design, the first information or the second message may be indicated by a channel state information request CSI request field of the first message.

In one possible design, the plurality of channel state information types may include a first type and a second type; alternatively, the plurality of channel state information types includes a first type, a second type, and a third type; wherein the first type is a channel quality indication, the second type is a channel repetition number, and the third type is a channel quality indication and a channel repetition number.

In a second aspect, an embodiment of the present application provides a communication method, including: the second equipment receives a first message sent by the first equipment, wherein the first message carries first information, and the first information is used for indicating the type of channel state information reported by the second equipment, and the type is one of a plurality of channel state information types; and the second equipment reports the indicated channel state information corresponding to the type according to the first information. By defining the relation between the CQI and the repetition number of the two channel state information, the second device can determine how to report the CQI and the repetition number of the two channel state information according to the first information, and can improve the reporting accuracy of the channel state information, thereby improving the scheduling accuracy and the resource utilization rate.

In one possible design, the second device may receive a second message sent by the first device, where the second message carries second information, and the second information is used to trigger the second device to report channel state information. The design can improve flexibility by decoupling the first information and the second information.

In one possible design, the second device may receive a third message sent by the first device, where the third message carries third information, and the third information is further used to indicate a bandwidth and/or a bandwidth location corresponding to the channel state information. The design can improve flexibility by decoupling the first information and the third information.

In one possible design, the first message is a random access response message media intervention control layer protocol data unit Random Access Response MAC PDU or the first message is a random access response message media intervention control layer protocol data unit control element Random Access Response MAC CE.

In one possible design, the second message and/or the third message may also be Random Access Response MAC PDU, or Random Access Response MAC CE.

In one possible design, the subheader includes E/T/R/R/BI fields, and the first information may be contained in a first and/or second R field of the subheader, or the first and/or second R field of the subheader may be used to indicate the first information.

In one possible design, the logical channel identification LCID field of the subheader of the UL-SCH/DL-SCH MAC CE or of the subheader of the UL-SCH/DL-SCH MAC PDU may be a first value.

In one possible design, the UL-SCH/DL-SCH MAC PDU includes an R/F2/E/LCID field, and the first information can be indicated by at least one of the R/F2/E fields of the UL-SCH/DL-SCH MAC PDU.

In one possible design, the first message may be control information.

In one possible design, the first information may be indicated by a channel state information request CSI request field of the first message.

In a third aspect, an embodiment of the present application provides a communication method, including: the first equipment determines first information, wherein the first information is used for triggering the second equipment to report channel state information, and/or the first information is used for indicating the content of the channel state information reported by the second equipment; the content of the channel state information comprises the type of the channel state information reported by the second equipment in the channel state information types, or the content of the channel state information comprises the type of the channel state information reported by the second equipment in the channel state information types and the frequency domain information corresponding to the channel state information; the first device sends first information to the second device. By defining the relation between the CQI and the repetition number of the two channel state information, the second device can determine how to report the CQI and the repetition number of the two channel state information according to the first information, and can improve the reporting accuracy of the channel state information, thereby improving the scheduling accuracy and the resource utilization rate.

In one possible design, if the first information is used to trigger the second device to report the channel state information, the first device may further determine second information, where the second information is used to indicate the content of the channel state information reported by the second device, and send the second information to the second device. The design can improve flexibility by decoupling the first information and the second information.

In one possible design, if the first information is used to indicate the content of the channel state information reported by the second device, the first device may further determine third information, where the third information is used to trigger the second device to report the channel state information; the first device sends third information to the second device. The design can improve flexibility by decoupling the first information and the third information.

In one possible design, if the content of the channel state information includes a type of channel state information reported by the second device in the multiple channel state information types, the first device may further determine fourth information, where the fourth information is used for frequency domain information corresponding to the channel state information reported by the second device; the first device sends fourth information to the second device. The above design can improve flexibility by decoupling the transmission of the first information and the fourth information.

In one possible design, the frequency domain information corresponding to the channel state information may include at least one of the following information: frequency domain bandwidth corresponding to the channel state information and frequency domain position corresponding to the channel state information.

In one possible design, the plurality of channel state information types may include a first type and a second type; alternatively, the plurality of channel state information types includes a first type, a second type, and a third type; wherein the first type is a channel quality indication, the second type is a repetition number of the first channel, and the third type is a channel quality indication and a repetition number of the first channel.

In one possible design, the second message, the third message, or the fourth message may also be Random Access Response MAC PDU, or Random Access Response MAC CE.

In one possible design, the subheader includes E/T/R/R/BI fields, and the first information may be contained in the first and/or second R fields of the subheader.

In one possible design, the subheader may include an E/T/RAPID field, and the first information may be indicated by the subheader's RAPID field.

In one possible design, the second message, the third message, or the fourth message may also be indicated by a MAC CE or a MAC PDU. The MAC CE and the MAC PDU may be sent by the first device for the second device in the connected state.

In one possible design, the first message may be control information.

In one possible design, the second message, the third message, or the fourth message may also be control information.

In a fourth aspect, an embodiment of the present application provides a communication method, including: the second equipment receives first information sent by the first equipment, wherein the first information is used for triggering the second equipment to report channel state information and/or indicating the content of the channel state information reported by the second equipment; the content of the channel state information comprises the type of the channel state information reported by the second equipment in the channel state information types, or the content of the channel state information comprises the type of the channel state information reported by the second equipment in the channel state information types and the frequency domain information corresponding to the channel state information; and the second equipment reports the channel state information according to the first information. By defining the relation between the CQI and the repetition number of the two channel state information, the second device can determine how to report the CQI and the repetition number of the two channel state information according to the first information, and can improve the reporting accuracy of the channel state information, thereby improving the scheduling accuracy and the resource utilization rate.

In one possible design, if the first information is used to trigger the second device to report the channel state information, the second device may also receive a second message, where the second message carries second information, and the second information is used to indicate the content of the channel state information reported by the second device. The design can improve flexibility by decoupling the first information and the second information.

In one possible design, if the first information is used to indicate the content of the channel state information reported by the second device, the second device may further receive a third message, where the third message carries third information, and the third information is used to trigger the second device to report the channel state information. The design can improve flexibility by decoupling the first information and the third information.

In one possible design, if the content of the channel state information includes a type of channel state information reported by the second device in the multiple channel state information types, the second device may further receive a fourth message, where the fourth message carries fourth information, and the fourth information is used for frequency domain information corresponding to the channel state information reported by the second device. The above design can improve flexibility by decoupling the transmission of the first information and the fourth information.

In one possible design, the first message may be control information.

In a fifth aspect, the present application provides an apparatus, which may be the first device, or the second device, or may be a chip. The apparatus has the functionality to implement any embodiment of the first aspect, or the second aspect, or the third aspect, or the fourth aspect. The functions can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In a sixth aspect, there is provided an apparatus comprising: a processor, a communication interface, and a memory. The communication interface is used to transfer information, and/or messages, and/or data between the device and other devices. The memory is configured to store computer-executable instructions that, when executed by the apparatus, cause the apparatus to perform the communication method according to any one of the first aspect or the first aspect, or the second aspect, or the third aspect or the fourth aspect.

In a seventh aspect, the present application also provides a system comprising a first device according to any of the embodiments of the first aspect, a second device according to any of the embodiments of the second aspect. Alternatively, the system comprises a first device in any of the embodiments of the third aspect described above, a second device in any of the embodiments of the fourth aspect described above.

In an eighth aspect, the present application also provides a computer readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the method of the above aspects.

In a ninth aspect, the application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the above aspects.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a random access channel according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 4 is a schematic diagram of fields included in a sub header of a MAC header according to an embodiment of the present application;

FIG. 5 is a schematic diagram of fields included in a sub header of another MAC header according to an embodiment of the present application;

fig. 6A is a schematic diagram of fields included in a subheader of a MAC PDU according to an embodiment of the present application;

fig. 6B is a schematic diagram of one DCI scheduling multiple transport blocks according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The communication method provided by the application can be applied to various communication systems, such as the Internet of things (internet of things, ioT), the narrowband Internet of things (narrow band internet of things, NB-IoT), the long-term evolution (long term evolution, LTE), a fifth generation (5G) communication system, a hybrid architecture of LTE and 5G, a new wireless (NR) system of 5G, a global system for mobile communication (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 new communication system in future communication development, and the like. As long as there is one entity in the communication system that can send control information for scheduling transport blocks, and send and receive transport blocks, another entity can receive control information for scheduling transport blocks, and receive and send transport blocks, the communication method provided by the embodiment of the present application can be adopted.

The terminal device according to the embodiment of the present application is a device for providing voice and/or data connectivity to a user, for example, a handheld device having a wireless connection function, a vehicle-mounted device, or the like. The terminal device may also be other processing device connected to the wireless modem. The terminal device may communicate with one or more core networks via a radio access network (radio access network, RAN). The terminal device may also be referred to as a wireless terminal, subscriber unit (subscriber unit), subscriber station (subscriber 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 device (user equipment), or user equipment (user equipment), and the like. The terminal device may be a mobile terminal, such as a mobile telephone (or "cellular" telephone) and a computer with a mobile terminal, e.g. a portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile device, which exchanges speech and/or data with the radio access network. For example, the terminal device may also be a personal communication services (personal communication service, PCS) phone, cordless phone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), or the like. Common terminal devices include, for example: a cell phone, tablet computer, notebook computer, palm computer, mobile internet device (mobile internet device, MID), wearable device, such as a smart watch, smart bracelet, pedometer, etc., but embodiments of the application are not limited thereto.

The network device according to the embodiments of the present application may be configured to mutually convert the received air frame and the network protocol (internet protocol, IP) packet, as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network or the like. The network device may also coordinate attribute management for the air interface. For example, the network device may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communication, GSM) or code division multiple access (code division multiple access, CDMA), a base station (NodeB) in wideband code division multiple access (wideband code division multiple access, WCDMA), an evolved base station (evolutional Node B, eNB or e-NodeB) in LTE, a new radio controller (new radio controller, NR controller), a gNode B (gNB) in a 5G system, a centralized unit, a new radio base station, a remote radio module, a micro base station, a relay, a distributed unit, a receiving point (transmission reception point, TRP) or a transmission point (transmission point, TP), or any other wireless access device, but the embodiment of the present application is not limited thereto. A network device may cover 1 or more cells.

Referring to fig. 1, a communication system according to an embodiment of the present application includes a network device and six terminal devices, i.e., UE1 to UE6. In the communication system, UE1 to UE6 may transmit uplink data to a network device, and the network device may receive the uplink data transmitted by UE1 to UE6. In addition, UEs 4 to 6 may constitute one sub-communication system. The network device may send downlink information to UE1, UE2, UE3, UE5, and UE5 may send downlink information to UE4, UE6 based on a device-to-device (D2D) technology. Fig. 1 is merely a schematic diagram, and the type of the communication system, and the number, type, and the like of devices included in the communication system are not particularly limited.

The network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided by the embodiments of the present application is applicable to similar technical problems.

In a communication system, a UE may be in three states: idle state, inactive state, and connected state. The connected UE can communicate with the base station through the base station dynamic scheduling to transmit data, while for the idle UE, the idle UE cannot transmit data through the base station dynamic scheduling, and needs to perform random access first, and can transmit data after RRC connection is established, or carries a small amount of uplink data in message 3 (MSG 3) in the random access process. The active state can be regarded as an intermediate state between these two states, and the UE and the core network retain the context of the radio resource control (radio resource control, RRC) message in the connected state, so that the connected state can be entered more quickly than the idle state. According to the current specification of the LTE protocol, when the UE transitions from the RRC connected state to the idle state, the configuration message of the RRC is not reserved, but the context of the RRC message is reserved when the UE transitions from the connected state to the inactive state.

As shown in fig. 2, the contention-based random access procedure for idle UEs is as follows:

s201, the UE transmits message 1 (MSG 1) to the base station. Wherein MSG1 is a preamble (Random Access Preamble on RACH in uplink).

S202, the base station sends message 2 (MSG 2) to the UE.

Wherein MSG2 is a random access response generated by MAC on DL-SCH (Radom Access Response). MSG2 carries Timing Advance (TA) adjustment. The base station blindly detects the preamble in the physical random access channel (physical random access channel, PRACH), and if the base station detects the random access preamble sequence code (Radom Access Preamble), the preamble is reported to the MAC, and then the random access response (MSG 2) of the MAC is fed back in the downlink shared channel PDSCH in the random access response window.

S203, the UE sends MSG3 to the base station.

The UE may obtain uplink synchronization according to the TA adjustment amount in the MSG2, and transmit the MSG3 in the uplink resource allocated to the UE by the base station, so as to perform subsequent data transmission. The uplink and downlink channel state information is not supported in MSG3 at present, and advanced data transmission in MSG3 is supported in Rel-15.

S204, the base station sends message 4 (MSG 4) to the UE. Wherein MSG4 may carry contention resolution with respect to DL. The base station and the UE eventually complete contention resolution through MSG 4.

According to the random access process based on competition of the idle state UE, the quality information of the downlink channel can not be reported in the MSG3. In order to improve accuracy of scheduling information and data after MSG3 and improve utilization rate of system resources, standardized idle state UE is required to report downlink channel state quality information in LTE Rel-16, and no method for reporting the downlink channel state quality information for the idle state UE exists at present. For channel state information reporting for idle state UEs, one possible solution is that the base station may configure reporting channel state information through system messages (system information, SI).

When the base station configures reporting channel state information through the SI, when the SI triggers reporting of the channel state information, all UEs in the cell report the channel state information, which may bring a great limitation to the system, for example, if the system has limited resources, the system cannot report, but at this time, the UEs have measured the channel, which leads to waste of UE power. In addition, when the channel state information of the UE is good, the UE with the good channel state information does not need to report the channel state information, but the UE with the good channel state information still reports the channel state information under the trigger of the SI, so that the power of the UE is wasted.

In addition, a new channel state information reporting mechanism is introduced into Rel-16 aiming at the connected UE, namely, the repetition times of the control channel are reported according to the downlink measurement. But in eMTC of Rel-13, reporting of channel quality indication (channel quality indicator, CQI) has been introduced for coverage enhancement mode a or coverage enhancement level 0 or coverage enhancement level 1 (CEModeA) users. The relationship between CQI (channel quality indicator) and the repetition number of the control channel reporting is not defined or specified in the prior art, and if reporting is performed independently, redundancy of information is caused, which wastes system resources and user power.

The embodiment of the application provides a communication method and equipment, which are used for solving the problem of how to report the two channel state information by UE in the prior art. The method and the device are based on the same inventive concept, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

The plural references in the embodiments of the present application refer to two or more.

It should be appreciated that in the description of the present application, the words "first," "second," and the like are used merely for distinguishing between the descriptions and not be construed as indicating or implying a relative importance or order.

Referring to fig. 3, a flow chart of a communication method provided by the present application is provided. The method may be applied to the communication system shown in fig. 1, and the method includes:

s301, a first device determines first information, wherein the first information is used for indicating a type of channel state information reported by a second device; the type is one of a plurality of channel state information types.

The first device may be a network device, and the second device may be a terminal device. Alternatively, the second device may be a network device, and the first device may be a terminal device. Alternatively, the first device may be a device with transmitting capabilities and the second device may be a device with receiving capabilities.

An exemplary illustration, the plurality of channel state information types including a first type and a second type; alternatively, the plurality of channel state information types includes a first type, a second type, and a third type; wherein the first type is a channel quality indication, the second type is a channel repetition number, and the third type is a channel quality indication and a channel repetition number. Further, the number of channel repetitions may refer to the number of channel repetitions of the first channel. The first channel may include a physical downlink data channel, or a physical uplink data channel, or a physical downlink control channel, or a physical uplink control channel, or a reference physical downlink data channel, or a reference physical uplink data channel, or a reference physical downlink control channel, or a reference physical uplink control channel, or the like.

The channel state information type may also be a reference signal received quality (reference signal received quality, RSRQ) or a reference signal received power (reference signal receiving power, RSRP). Thus, the channel state information type further includes one or a combination of the following: CQI, number of repetitions of the first channel, RSRQ, RSRP. The type of channel state information may be used to indicate which channel state information or information the second device reports. The types of the plurality of channel states may thus be any combination of CQI, number of repetitions of the first channel, RSRQ, RSRP, including, for example, the fourth type, the fifth type. Sixth type. For example, the fourth type may be RSRQ, the fifth type is the number of repetitions of the first channel and RSRP, the sixth type is CQI, RSRQ, RSRP, and the like.

S302, the first device sends a first message to the second device, wherein the first message carries the first information. Correspondingly, the second device receives the first message sent by the first device.

S303, the second device reports the indicated channel state information corresponding to the type according to the first information.

In the embodiment of the application, by defining the relation between the CQI and the repetition number of the two channel state information, the first information indicates the second equipment how to report the CQI and the repetition number of the two channel state information, so that the reporting accuracy of the channel state information can be improved, the scheduling accuracy can be improved, and the resource utilization rate can be improved.

In addition, the first device may further determine second information and/or third information, where the second information is used to trigger (or may also be understood as indicating) that the second device reports channel state information corresponding to the indicated type. The third information is used for indicating the bandwidth and/or the bandwidth position corresponding to the channel state information.

In the embodiment of the application, the bandwidth may refer to channel state information of a wideband or a narrowband or a subband, where the wideband may refer to the whole system bandwidth or may refer to a plurality of narrowband. The bandwidth location may refer to a frequency domain location, in particular to a frequency domain location or number (or index) of a frequency domain location where the narrowband or sub-band (selected by the second device) is located.

In a specific implementation, the first information, the second information and the third information may be sent by one message, that is, the first device sends the message 1 to the second device, where the message 1 carries the first information, the second information and the third information, and the message 1 may correspond to the first message.

Or, the first information, the second information and the third information may be sent through two messages, that is, the first device sends a message 1 and a message 2 to the second device respectively, where the message 1 may carry the first information, the message 2 may carry the second information and the third information, and in this case, the message 1 may correspond to the first message, and the message 2 may correspond to the second message. Alternatively, the message 1 may carry the first information and the second information, and the message 2 may carry the third information, where the message 1 may correspond to the first message and the message 2 may correspond to the third message. Alternatively, the message 1 may carry the first information and the third information, and the message 2 may carry the second information, where the message 1 may correspond to the first message and the message 2 may correspond to the second message.

Alternatively, the first information, the second information and the third information may be sent through three messages, that is, the first device sends a message 1 and a message 2 and a message 3 to the second device, respectively, where the message 1 may carry the first information, the message 2 may carry the second information, and the message 3 may carry the third information. Message 1 may correspond to a first message, message 2 may correspond to a second message, and message 3 may correspond to a third message.

It should be understood that each message in the above description is only an exemplary illustration, and the names and the sending order of the messages are not specifically limited.

In some embodiments, the first information and/or the third information may also be predefined by the second device, such that the second device may report channel state information according to the predefined first information and/or third information when receiving the second information.

The first device may not transmit the first information if the first information is predefined. The second device may determine the type of channel state information from the predefined first information.

If the third information is predefined, the first device may not send the third information. The second device may determine the bandwidth and/or the bandwidth location corresponding to the channel state information according to the predefined third information.

In one exemplary illustration, at least one of the first message, the second message, and the third message may be a random access response message media-intervention control layer protocol data unit (Random Access Response MAC PDU), or the first message may be a random access response message media-intervention control layer protocol data unit control element (Random Access Response MAC CE).

As a possible implementation manner, the first message, the second message, and the third message may also be radio resource control (radio resource control, RRC) messages.

In an exemplary embodiment, a part of the first information, the second information, and the third information is transmitted through Random Access Response MAC PDU, and the other part is transmitted through an RRC message. For example, the first information is transmitted through Random Access Response MAC PDU, the second information and the third information are transmitted through RRC messages, and so on. It should be understood that this is merely an exemplary illustration, and that the three information is specifically transmitted by which information, and is not specifically limited herein.

Alternatively, the first information of the first information, the second information, and the third information is transmitted through Random Access Response MAC PDU, the second information is transmitted through RRC message, and the third information is predefined. Specifically, the first information, the second information, and the third information specifically correspond to any information of the first information, the second information, and the third information, which is not specifically limited herein.

Alternatively, a part of the first information, the second information, and the third information may be transmitted through an RRC message, and another part may be predefined. For example, the second information is sent by RRC message, the first information and the third information are predefined, and so on. It should be understood that this is merely an exemplary illustration, and that the three information is specifically transmitted by which information, and is not specifically limited herein.

In the following, the method of Random Access Response MAC PDU indicating the first information and Random Access Response MAC PDU indicating the second information or the third information is similar, and the description thereof will be omitted.

Further, the first information may be indicated by a MAC header field (MAC header) of Random Access Response MAC PDU. Specifically, the first information may be indicated by a sub header (sub header) of the MAC header of Random Access Response MAC PDU. The subheader may be the last subheader in the MAC headers of Random Access Response MAC PDU.

Still further, the subheader may include E/T/R/R/BI fields, as shown in FIG. 4. The first information is contained in a first and/or second R field of the subheader.

The specific content of the first information may be indicated by the value status of the first and/or second R fields of the subheader, for example, if indicated by a field (the first or second R field of the subheader), the type one may be indicated when the value of the field is 0, and the type two may be indicated when the value of the field is 1. If indicated by two fields (the first and second R fields of the subheader), type one may be indicated when the value of this field is 00 and type two may be indicated when the value of this field is 01. A value of 10 in this field indicates type three, and a value of 11 in this field indicates type four. It should be noted that, the above-mentioned field bit values and the indicated meanings are only examples, and the used fields and indicated contents are all the protected contents of the present application as long as the used fields and indicated contents are the same.

In an implementation, when the first information and the second information are transmitted through one message, the first information and the second information may be indicated in combination. For example, the first information and the second information may be indicated by one field (e.g., a first R field of the subheader or a second R field of the subheader). Specifically, the field may be used to instruct the user not to send the channel state information when the value of the field is 0, and the field may be used to instruct the user to send the first channel state information when the value of the field is 0. Of course, the field may be used to instruct the user not to transmit the channel state information when the value of the field is 1, and to instruct the user to transmit the first channel state information when the value of the field is 1.

Alternatively, the first information and the second information may be indicated by two fields (e.g., a first R field and a second R field of the sub header). Specifically, the method can be used for indicating that the user does not send channel state information when the values of the two fields are 00, indicating that the user sends first channel state information when the values of the two fields are 01, indicating that the user sends second channel state information when the values of the two fields are 10, and indicating that the user sends the first channel state information and the second channel state information when the values of the two fields are 11. It should be noted that, the above-mentioned field bit values and the indicated meanings are only examples, and the used fields and indicated contents are all the protected contents of the present application as long as the used fields and indicated contents are the same.

Alternatively, the sub-header may also include an E/T/RAPID field, as shown in fig. 5, where the first information may be indicated by the RAPID field of the sub-header.

The PAPID may be the same as the PAPID of the first subheader in the MAC headers of Random Access Response MAC PDU. At this time, the second device corresponding to all PAPIDs in the MAC header of Random Access Response MAC PDU may be instructed to report a certain type of channel state information (e.g., type one, i.e., instruct the second device corresponding to all PAPIDs to report CQI, etc.).

Optionally, when the PAPID is the same as the PAPID of the sub-header with index k (may also be referred to as sub-header k), the second device corresponding to the PAPID of the sub-header with index k may be instructed to send a certain type of channel state information (e.g., type three, the second device corresponding to the PAPID of the sub-header with index k is instructed to send CQI and the repetition number of the first channel).

If the PAPID is the same as the PAPIDs of the subheaders, the second device that indicates the PAPIDs of the subheaders may report certain types of channel state information respectively.

Optionally, the subheader carrying the first information may have no corresponding media access control layer (media access control, MAC) random access corresponding (random access response, RAR) or MAC Control Element (CE), or the size of the MAC RAR or MAC CE corresponding to the subheader is fixed to 0 bits.

In another exemplary illustration, at least one of the first message, the second message, and the third message may be an uplink-shared channel (UL-SCH)/downlink-shared channel (DL-SCH) MAC protocol data unit (protocol data unit, PDU), UL/DL SCH MAC CE, MAC protocol data unit (protocol data unit, PDU), or MAC CE.

The first information may be indicated by a subheader of the MAC CE or a subheader of the MAC PDU.

Further, a Logical Channel ID (LCID) field of the subheader of the MAC CE or the subheader of the MAC PDU may be a first value. Illustratively, the first value may be: 10001 or any one of 01011 to 01111.

Illustratively, the subheader of the MAC PDU may include an R/F2/E/LCID field, and the first information is indicated by at least one of the R/F2/E fields of the MAC PDU as shown in FIG. 6A.

The specific content of the first information may be indicated by a value state of at least one field in the R/F2/E field of the subheader, for example, if the value of the field is indicated by a field (the R/F2/E field of the subheader), the type one may be indicated when the value of the field is 0, and the type two may be indicated when the value of the field is 1. If the indication is made by two fields (any two fields in the R/F2/E field of the subheader), the type one can be indicated when the value of the field is 00, and the type two can be indicated when the value of the field is 01. A value of 10 in this field indicates type three, and a value of 11 in this field indicates type four. If indicated by three fields (R, F of the subheader and the E field), type one may be indicated when the value of the field is 000 and type two may be indicated when the value of the field is 011. The value of 101 in the field indicates the type three, the value of 111 in the field indicates the type four, and when the value is in other value states, other types can be indicated, and the list is not repeated here. It should be noted that, the above-mentioned field bit values and the indicated meanings are only examples, and the used fields and indicated contents are all the protected contents of the present application as long as the used fields and indicated contents are the same.

In an implementation, when the first information and the second information are transmitted through one message, the first information and the second information may be indicated in combination. For example, the first information and the second information may be indicated by one field (e.g., an R/F2/E field of a subheader of the MAC PDU). Specifically, the value of the field is 0, which may be used to indicate that the user does not send channel state information, and the value of the field is 1, which may be used to indicate that the user sends first channel state information.

Alternatively, the first information and the second information may be indicated by two fields (e.g., any two fields of the R/F2/E field of the subheader of the MAC PDU). And the method can be used for indicating the user not to send the channel state information when the two field values are 00, indicating the user to send the first channel state information when the two field values are 01, indicating the user to send the second channel state information when the two field values are 10, and indicating the user to send the first channel state information and the second channel state information when the two field values are 11.

Alternatively, the first information and the second information may be indicated by three fields (R, F of the subheader and E field), and specifically, different values of the three fields may indicate different channel state information types, which are not illustrated herein.

It should be noted that, the above-mentioned field bit values and the indicated meanings are only examples, and the used fields and indicated contents are all the protected contents of the present application as long as the used fields and indicated contents are the same.

In still another exemplary illustration, at least one of the first message, the second message, and the third message may be control information.

Further, the first information is indicated by a first field of the first message. For example, the first field may be a channel state information request (channel state information request, CSI request) field.

The second information may also be indicated by the first field. The specific indication manner is similar to that of the first field indicating the first information, and will not be described herein.

Specifically, different value states of the field may indicate different channel state information types, for example, a first value state of the field is used to indicate type one (i.e., CQI), and a second value state is used to indicate type two (i.e., the number of repetitions of the first information). Or, the first value state of the field indicates a type one or a type two (i.e. indicates the repetition number of the CQI or the first information reported by the second device), and the second value state indicates a type three (i.e. indicates the repetition number of the CQI and the first channel reported by the second device). It should be noted that, the above-mentioned field bit values and the indicated meanings are only examples, and the used fields and indicated contents are all the protected contents of the present application as long as the used fields and indicated contents are the same.

In implementations, the first field may also indicate that no channel state information is reported. For example, the first value state of the first field is used to indicate that the user does not report channel state information or does not include channel state information. The first value state may be exemplified as a value of 0 for all bits.

As a possible implementation, when the first information and the second information are transmitted through one message, the first information and the second information may be indicated in combination. For example, the first information and the second information may be indicated by different value states of the first field. If the first field is in the first state, the user is instructed not to send channel state information, if the first field is in the second state, the user is instructed to send channel state information of type one, and so on. Here, when the user is instructed to report the channel state information, the type of the reported channel state information may be predefined or may be indicated by the first field.

It should be understood that the first information and the third information may be indicated together, and the second information and the third information may be indicated together, so that the first information, the second information and the third information may be indicated together, and a specific indication manner is similar to that of the first information and the second information, and specific reference may be made to a description about the joint indication of the first information and the second information, where a detailed description is omitted.

In addition, the data transmission of the current user is scheduled and transmitted through control information sent by the base station. In a communication system, typically one downlink control information (downlink control information, DCI) schedules one transport block or one transport block carried by a data channel. The data channel may be a physical downlink data channel or a physical uplink data channel.

For machine type communication users, such as eMTC, since they are in areas of poor coverage, both control information and data information need to be repeated a certain number of times to reach a certain coverage. When more user data or more regular user data is used, in order to reduce the cost of DCI transmission and save transmission resources, one DCI may be used to schedule multiple data channels or one DCI may be used to schedule multiple transport blocks. As shown in fig. 6B, a schematic diagram of scheduling a plurality of transport blocks for one DCI.

When one DCI schedules a plurality of transport blocks or schedules a plurality of data channels, if the number of repetitions is excessive and a plurality of transport blocks are continuously transmitted, a large amount of resources may be occupied by one user for a long period of time, and other users cannot schedule these resources, which may have a great influence on the scheduling of other users. Therefore, transmission intervals can be introduced among a plurality of transmission blocks scheduled by one DCI, and more flexibility can be brought to scheduling of other users.

In the prior art, the transmission interval between multiple transport blocks (transmission block, TB) may be enabled or disabled after configuration by higher layer signaling. But higher layer signaling is semi-static and inflexible.

Based on this, the embodiment of the application provides a communication method, which is used for solving the problem of resource waste when one DCI schedules a plurality of transmission blocks or schedules a plurality of data channels. Specifically, the second device receives fourth information and control information sent by the first device, where the control information carries fifth information. The second device determines whether to transmit at intervals based on the fourth information and the fifth information. The fourth information is configured by the base station through higher layer signaling, and can also be carried by control information. The fourth information is used to enable or disable the transmission interval.

Optionally, the fifth information may be indicated by the first field and/or the second field in the control information, so that the second device may determine whether to transmit at intervals according to the fourth information and the first field and/or the second field in the control information.

The fifth information is indicated by a first field, where the first field may be used to indicate the number of scheduled TB blocks, and when the number of scheduled TB blocks is greater than K, the second device determines an interval transmission, otherwise a continuous transmission.

Or the fifth information is indicated by a second field, where the second field may be the repetition number, and when the repetition number is greater than M, the second device determines to transmit at intervals, or else continuously transmits, where the repetition number may be the repetition number of the data channel or the control channel.

Or the fifth information is indicated through a first field and a second field, wherein the first field is the scheduled TB number, the second field is the repetition number, when the TB number is greater than N, the second device determines to transmit at intervals, otherwise, the fifth information is continuously transmitted, and the repetition number here may be the repetition number of the data channel or the repetition number of the control channel.

In some embodiments, when a hybrid automatic repeat request bundling (Hybrid Automatic Repeat reQuest, HARQ bundling) is configured or enabled at a higher layer, DCI may be implicitly indicated to be multi-TB scheduled according to a first manner, which may be a full new transmission or a full retransmission, where hybrid automatic repeat request bundling may also be understood as hybrid automatic repeat request-successful transmission acknowledgement bundling (HARQ-ACK bundling) or spatial bundling (spatial bundling).

In another communication method provided in the embodiment of the present application, the first device may instruct the sixth information, where the sixth information is used to instruct the second device to perform information transmission on the first resource in a rate matching manner (may also be referred to as rate matching around the first resource), or instruct the second device to puncture (puncture) the first resource. The first resource may be a frequency domain resource of a first system, and the first system may be an LTE system.

If the first resource includes N subcarriers, or the RB of the first resource and the RB of the second resource differ by N subcarriers, where the second resource is a frequency domain resource of the second system, the second system may be an NR system. When N is greater than K, the second device may be instructed to perform information transmission through the second resource (which may be the same as the first resource or a part of the first resource) in a rate matching manner, or when N is less than or equal to K, the second device punctures the first resource.

In one exemplary illustration, when the first channel contains the first resource, the second device determines the number of repetitions and/or the MCS and/or the TBS based on the first information. When the first channel does not contain the first resource, the second device determines at least one of the repetition number, the MCS, the TBS and the maximum repetition number according to the seventh information and/or the eighth information. The seventh information is at least one of the configured first repetition number rmax1, the first MCS, and TBS m1, and the eighth information is at least one of the configured second repetition number rmax2, the first parameter p, the configured second MCS, and TBS. If the eighth information includes the first parameter p, the final repetition number may be determined to be rmax1×p, and if the eighth information includes rmax2, the final repetition number may be considered to be rmax2. The repetition number may be the number of data channel repetitions or the number of control channel repetitions. The final number of repetitions may be considered as the maximum number of repetitions.

In yet another exemplary illustration, the first channel comprises a first resource around which the terminal device rate-matches. The second channel contains the first resource, and the terminal device punctures the first resource or determines puncturing or rate matching (rate-matching) according to the first information.

Wherein the first channel may be a physical shared lower (upper) row channel (physical downlink/uplink shared channel) and the second channel may be a physical lower (upper) row control channel (machine type communication physical downlink/uplink control channel) for (machine-like communication).

Based on the same inventive concept as the method embodiment, the embodiment of the present application provides a communication device, which may have a structure as shown in fig. 7, including a processing unit 701 and a transceiver unit 702.

In a specific implementation manner, the communication apparatus may be specifically configured to implement the method performed by the first device in the embodiment shown in fig. 3 to 6A, where the apparatus may be the first device itself, or may be a chip or a chipset in the first device or a part of a chip for performing the related method function. The processing unit 701 is configured to determine first information, where the first information is used for a type of channel state information reported by a second device in multiple channel state information types. And a transceiver unit 702, configured to send a first message to the second device, where the first message carries the first information.

The first message may also carry second information, where the second information is used to trigger the second device to report channel state information.

Or, the transceiver unit 702 is further configured to send a second message to the second device, where the second message carries second information, and the second information is used to trigger the second device to report channel state information.

For example, the first message may further carry third information, where the third information is further used to indicate a bandwidth and/or a bandwidth location corresponding to the channel state information.

Or, the transceiver unit 702 is further configured to send a third message to the second device, where the third message carries third information, and the third information is further used to indicate a bandwidth and/or a bandwidth location corresponding to the channel state information.

In one exemplary illustration, the first message may be a random access response message MAC PDU or the first message may be a random access response message MAC CE.

Further, the first information may be indicated by a subheader of a MAC header field of the first message.

Illustratively, the sub-header includes E/T/R/R/BI fields, and the first information may be included in a first and/or second R field of the sub-header.

Illustratively, the sub-header includes an E/T/RAPID field, and the first information is indicated by the RAPID field of the sub-header.

In another exemplary illustration, the first message may be indicated for a MAC CE or a MAC PDU.

Further, the logical channel identifier LCID field of the subheader of the MAC CE or the subheader of the MAC PDU may be a first value.

Illustratively, the MAC PDU includes an R/F2/E/LCID field, and the first information may be indicated by at least one of the R/F2/E fields of the MAC PDU.

In yet another exemplary illustration, the first message may be control information.

Further, the first information may be indicated by a CSI request field of the channel state information request of the first message.

Illustratively, the plurality of channel state information types includes a first type and a second type; alternatively, the plurality of channel state information types includes a first type, a second type, and a third type; wherein the first type is a channel quality indication, the second type is a repetition number of the first channel, and the third type is a channel quality indication and a repetition number of the first channel.

In another specific implementation manner, the communication apparatus may be specifically configured to implement the method performed by the second device in the embodiment shown in fig. 3 to 6A, where the apparatus may be the second device itself, or may be a chip or a chipset in the second device or a part of a chip for performing the related method function. The transceiver unit 702 is configured to receive first information sent by a first device, where the first information is used for a type of channel state information reported by a second device in multiple channel state information types. And a processing unit 701, configured to report channel state information according to the first information.

Or, the transceiver unit 702 is further configured to receive a second message sent by the first device, where the second message carries second information, and the second information is used to trigger the second device to report channel state information.

Or, the transceiver unit 702 is further configured to receive a third message sent by the first device, where the third message carries third information, and the third information is further used to indicate a bandwidth and/or a bandwidth location corresponding to the channel state information.

The division of the modules in the embodiments of the present application is schematically only one logic function division, and there may be another division manner in actual implementation, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, or may exist separately and physically, or two or more modules may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules.

Where the integrated module may be implemented in hardware, the communication device may be as shown in fig. 8, and the processing unit 701 may be the processor 802. The processor 802 may be a central processing unit (central processing unit, CPU), or a digital processing module, or the like. The transceiver unit 702 may be a communication interface 801, and the communication interface 801 may be a transceiver, or may be an interface circuit such as a transceiver circuit, or may be a transceiver chip, or the like. The network device further includes: a memory 803 for storing programs executed by the processor 802. The memory 803 may be a nonvolatile memory such as a Hard Disk Drive (HDD) or a Solid State Drive (SSD), or may be a volatile memory (RAM). Memory 803 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.

The processor 802 is configured to execute the program code stored in the memory 803, and is specifically configured to execute the actions of the processing unit 701, which are not described herein.

The specific connection medium between the communication interface 801, the processor 802, and the memory 803 is not limited in the embodiment of the present application. In the embodiment of the present application, the memory 803, the processor 802 and the communication interface 801 are connected through the bus 804 in fig. 8, where the bus is indicated by a thick line in fig. 8, and the connection manner between other components is only schematically illustrated, but not limited thereto. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present application without departing from the scope of the embodiments of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims and the equivalents thereof, the present application is also intended to include such modifications and variations.

Claims

1. A method of communication, comprising:

the method comprises the steps that first equipment determines first information, wherein the first information is used for indicating a type of reporting channel state information by second equipment; the type is one of a plurality of channel state information types; the plurality of channel state information types includes a first type and a second type; alternatively, the plurality of channel state information types includes a first type, a second type, and a third type; wherein the first type is a channel quality indication, the second type is a channel repetition number of a first channel, and the third type is a channel quality indication and a channel repetition number of the first channel; the first channel comprises a physical downlink data channel, a physical uplink data channel, a physical downlink control channel, a physical uplink control channel, a reference physical downlink data channel, a reference physical uplink data channel, or a reference physical uplink control channel;

The first device sends a first message to the second device, wherein the first message carries the first information;

the first message is a random access response message media intervention control layer protocol data unit (MAC CE), and the first information is indicated by a sub header of an MAC header field of the first message;

the subheader comprises E/T/R/R/BI fields, and the first information is contained in a first R field and/or a second R field of the subheader; alternatively, the subheader includes an E/T/RAPID field, and the first information is indicated by the RAPID field of the subheader.

2. The method of claim 1, wherein the first message further carries second information, the second information being used to trigger the second device to report channel state information corresponding to the indicated type; or,

the method further comprises the steps of:

the first device sends a second message to the second device, wherein the second message carries second information, and the second information is used for triggering the second device to report the channel state information corresponding to the indicated type.

3. The method according to claim 1, wherein the first message further carries third information, the third information being used for indicating a bandwidth and/or a bandwidth location corresponding to the channel state information; or alternatively

The method further comprises the steps of:

the first device sends a third message to the second device, wherein the third message carries third information, and the third information is used for indicating the bandwidth and/or the bandwidth position corresponding to the channel state information.

4. A method of communication, comprising:

the method comprises the steps that a second device receives a first message sent by a first device, wherein the first message carries first information, the first information is used for indicating the type of channel state information reported by the second device, and the type is one of a plurality of channel state information types; the plurality of channel state information types includes a first type and a second type; alternatively, the plurality of channel state information types includes a first type, a second type, and a third type; wherein the first type is a channel quality indication, the second type is a channel repetition number of a first channel, and the third type is a channel quality indication and a channel repetition number of the first channel; the first channel comprises a physical downlink data channel, a physical uplink data channel, a physical downlink control channel, a physical uplink control channel, a reference physical downlink data channel, a reference physical uplink data channel, or a reference physical uplink control channel;

The second equipment reports the indicated channel state information corresponding to the type according to the first information;

5. The method of claim 4, wherein the first message further carries second information, the second information being used to trigger the second device to report channel state information corresponding to the indicated type; or,

the method further comprises the steps of:

and receiving a second message sent by the first device, wherein the second message carries second information, and the second information is used for triggering the second device to report the channel state information corresponding to the indicated type.

6. The method of claim 4, wherein the first message further carries third information, and wherein the third information is further used to indicate a bandwidth and/or a bandwidth location corresponding to the channel state information; or alternatively

The method further comprises the steps of:

the second device receives a third message sent by the first device, wherein the third message carries third information, and the third information is used for indicating the bandwidth and/or the bandwidth position corresponding to the channel state information.

7. A communication device comprising means for implementing the method of any one of claims 1-3; and/or comprising means for implementing the method according to any of claims 4-6.

8. A communication device comprising a processor, a transceiver, and a memory, the processor coupled to the memory;

the memory is used for storing programs or instructions;

the processor for executing the program or instructions to perform the method of any of claims 1-3 by the transceiver; and/or to perform the method of any of claims 4-6 by the transceiver.

9. A computer readable storage medium storing a program or instructions which, when executed, is implemented as a method according to any one of claims 1-3; alternatively, the program or instructions, when executed, implement the method of any of claims 4-6.