CN109802734B

CN109802734B - Method and device for transmitting channel quality information

Info

Publication number: CN109802734B
Application number: CN201711148332.4A
Authority: CN
Inventors: 张荻; 刘建琴
Original assignee: Huawei Technologies Co Ltd
Current assignee: XFusion Digital Technologies Co Ltd
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2020-10-23
Anticipated expiration: 2037-11-17
Also published as: WO2019095794A1; CN109802734A

Abstract

The embodiment of the application discloses a method and a device for transmitting channel quality information, which relate to the technical field of communication and are beneficial to realizing the following technical effects: the quantization step size when the quality of the non-reference channel is quantized is reasonably set, so that the overall performance gain of the system is improved. The method can comprise the following steps: the terminal determines reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2; determining a quantization step size according to the reference channel quality; quantizing the K channel qualities according to the quantization step; and sending channel quality information to the network equipment, wherein the channel quality information is used for indicating the reference channel quality and K quantized values obtained after channel quality quantization.

Description

Method and device for transmitting channel quality information

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting channel quality information.

Background

The development of mobile services places increasing demands on the data rate and efficiency of wireless communications. In 5G and future wireless communication systems, beamforming technology is used to limit the energy of transmission signals within a certain beam direction, thereby increasing signal communication efficiency. The beamforming technology can effectively enlarge the transmission range of wireless signals and reduce signal interference, thereby achieving higher communication efficiency and obtaining higher network capacity.

In a communication network adopting a beamforming technology, it is necessary to make a signal received by a terminal through a specific receiving beam come from a specific transmitting beam of a network device through beam training or beam management, and the specific receiving beam and the specific transmitting beam form a beam pair, so as to obtain relatively good signal quality, otherwise, relatively high communication efficiency cannot be obtained, and even communication cannot be performed. As an example, the specific flow of beam training or beam management is as follows: the network equipment sends one or more beam-forming reference signals to the terminal; the terminal receives the reference signals of the beam forming sent by the network equipment through one or more receiving beams, then estimates a plurality of channel qualities according to the received reference signals, and reports the best channel qualities in the estimated channel qualities to the network equipment. The network device selects a beam pair based on the best channel qualities. The channel quality may include, but is not limited to, Reference Signal Received Power (RSRP).

Before reporting the channel quality to the network device, the terminal needs to quantize the actually measured channel quality. At present, the commonly adopted method is as follows: in order to reduce the reporting overhead, the channel quality information is reported in a differential mode, a reference channel quality is selected, and then the non-reference channel quality (or the differential channel quality) is quantized according to the reference channel quality and a fixed 1db quantization step length. Since the quantization bit number of the non-reference channel quality is 4 bits, if the non-reference channel quality is quantized by the above method, the value range of the quantization value of the non-reference channel quality is limited, thereby reducing the overall performance gain of the system.

Disclosure of Invention

The embodiment of the application provides a method and a device for transmitting channel quality information, which are beneficial to realizing the following technical effects: the quantization step size when the quality of the non-reference channel is quantized is reasonably set, so that the overall performance gain of the system is improved.

In a first aspect, an embodiment of the present application provides a method and an apparatus for transmitting channel quality information.

In one possible design, the method may be applied to a terminal, and the method may include: determining a reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2; determining a quantization step size according to the reference channel quality; quantizing the K channel qualities according to the quantization step length, specifically quantizing the non-reference channel quality in the K channel qualities; and sending channel quality information to the network equipment, wherein the channel quality information is used for indicating the reference channel quality and K quantized values obtained after channel quality quantization. Here, the reference channel quality is specifically a quantized value of the reference channel quality. In the method for transmitting channel quality provided in this embodiment, when a terminal needs to report a plurality of channel qualities, a quantization step for quantizing non-reference channel qualities is determined based on reference channel qualities. Therefore, the value range of the quantized value of the non-reference channel quality determined according to the reference channel quality and the quantization step is not fixed and unchanged, so that the value range of the quantized value of the non-reference channel quality can be adjusted by reasonably setting the quantization step when the non-reference channel quality is quantized, and the whole performance gain of a system is improved.

Correspondingly, the present application also provides a device for transmitting channel quality information, which may be a terminal, and may specifically implement the method of the first aspect. The device can realize the method through software, hardware or corresponding software executed by hardware.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the respective functions in the method of the first aspect. The memory is used for coupling with the processor and stores programs and data necessary for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In another possible design, the apparatus may include a processing unit and a transceiver unit. Wherein the processing unit is configured to: determining a reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2; determining a quantization step size according to the reference channel quality; and quantizing the K channel qualities according to the quantization step size. The transceiving unit is used for: and sending channel quality information to the network equipment, wherein the channel quality information is used for indicating the reference channel quality and K quantized values obtained after channel quality quantization.

In a second aspect, embodiments of the present application provide a method and an apparatus for transmitting channel quality information.

In one possible design, the method may be applied to a terminal, and the method may include: receiving channel quality information sent by a terminal, wherein the channel quality information is used for indicating reference channel qualities of K channel qualities and quantized values obtained after the K channel qualities are quantized; determining reference channel quality according to the channel quality information; and determining a quantization step size according to the reference channel quality, and acquiring K quantization values obtained after channel quality quantization according to the reference channel quality, the quantization step size and the channel quality information. Wherein K is an integer of 2 or more.

Correspondingly, the present application also provides a device for transmitting channel quality information, which may be a network device, and may specifically implement the method of the second aspect. The device can realize the method through software, hardware or corresponding software executed by hardware.

In one possible design, the apparatus may include a processor and a memory. The processor is configured to enable the apparatus to perform the corresponding functions in the method of the second aspect. The memory is used for coupling with the processor and stores programs and data necessary for the device. The apparatus may further comprise a communication interface for supporting communication between the apparatus and other network elements. The communication interface may be a transceiver.

In another possible design, the apparatus may include a transceiver unit and a processing unit. Wherein the transceiver unit is configured to: and receiving channel quality information sent by a terminal, wherein the channel quality information is used for indicating reference channel qualities of the K channel qualities and quantized values obtained after the K channel qualities are quantized. The processing unit is used for: and determining a quantization step size according to the reference channel quality, and acquiring K quantization values obtained after channel quality quantization according to the reference channel quality, the quantization step size and the channel quality information. Wherein K is an integer of 2 or more.

Based on the method or apparatus provided in any of the above aspects, in one possible design, the reference channel quality may be, for example and without limitation, a maximum value, a minimum value, or an average value of the K channel qualities.

In a possible design, the channel quality includes at least one of the following parameters: reference signal received power, reference signal received quality, channel quality indication, signal to interference plus noise ratio, signal to noise ratio.

In one possible design, the method or apparatus provided in any of the above aspects, determining the quantization step size according to the reference channel quality may include: if the reference channel quality is less than the threshold, determining that the quantization step size is M; if the reference channel quality is greater than or equal to the threshold, determining that the quantization step size is N; m is not equal to N. Optionally, when the reference channel quality is a maximum value of the K channel qualities, M is less than N; alternatively, when the reference channel quality is the minimum of K channel qualities, M is greater than N. Optionally, at least one of the threshold, M and N is predefined or configured by the network device to the terminal. Optionally, the threshold is equal to a threshold for restoring channel quality set when communication between the terminal and the network device is performed.

Based on the method or apparatus provided in any of the above aspects, in one possible design, when the reference channel quality is the maximum of the K channel qualities, the larger the reference channel quality is, the larger the quantization step size is. When the reference channel quality is the maximum value among the K channel qualities, the maximum value is used as the maximum value boundary of the value range of the quantized value of the non-reference channel quality, and then, the larger the reference channel quality is, the larger the value range of the quantized value of the non-reference channel quality is, so that a larger quantization step can be set, and the actual value range of the quantized value of the non-reference channel quality is larger.

Or, when the reference channel quality is the minimum of the K channel qualities, the larger the reference channel quality is, the smaller the quantization step size is. When the reference channel quality is the minimum value among the K channel qualities, the minimum value is used as the minimum value boundary of the value range of the quantized value of the non-reference channel quality, and then, the larger the reference signal quality is, the smaller the value range of the quantized value of the non-reference channel quality is, and thus, a smaller quantization step can be set.

In one possible design, the method or apparatus provided in any of the above aspects, determining the quantization step size according to the reference channel quality may include: determining a quantization step size according to the mapping relation group and the reference channel quality; the mapping relation group comprises at least two mapping relations, and each mapping relation represents the mapping relation between one reference channel quality range and one quantization step. Therefore, the number of mapping relations maintained by the terminal and the network equipment is small, and the implementation is simple.

In one possible design, the method or apparatus provided in any of the above aspects, determining the quantization step size according to the reference channel quality may include: when the reference channel quality is the maximum of the K channel qualities, the quantization step size is determined according to one of the following formulas: delta ═ r-A)/2^N，△＝ceil[(r-A)/2^N]，△＝floor[(r-A)/2^N]，△＝(r-A+1)/2^N，△＝ceil[(r-A+1)/2^N]，△＝floor[(r-A+1)/2^N]. Or, when the reference channel quality is the minimum of the K channel qualities, the quantization step size is determined according to one of the following formulas: delta ═ B-r)/2^N，△＝ceil[(B-r)/2^N]，△＝floor[(B-r)/2^N]，△＝(B-r+1)/2^N，△＝ceil[(B-r+1)/2^N]，△＝floor[(B-r+1)/2^N]. Wherein, Delta represents quantization step size, Delta is more than 0, r represents reference channel quality, and the value range of the reference channel quality is [ A, B]A is smaller than B, N represents the quantization bit number of the non-reference channel quality, and N is an integer greater than or equal to 1; ceil () represents rounded up and floor () represents rounded down.

In a possible design, the method or apparatus provided in any of the above aspects, the channel quality information includes: indexes of quantized values obtained after K channel qualities are quantized; when the reference channel quality is the maximum of the K channel qualities, the quantized value of the channel quality indicated by the ith index is max { r-i Δ, A }, i is [0, 2 ] delta^N-1]The whole number of (1);

alternatively, when the reference channel quality is the minimum value among the K channel qualities, the quantized value of the channel quality indicated by the ith index is min { r + i Δ, B }, i is [0, 2 ]^N-1]The whole number of (1); wherein, Delta represents the quantization step size, r represents the reference channel quality, and the value range of the reference channel quality is [ A, B]Where A is less than B, N represents the number of quantization bits of the non-reference channel quality, and N is an integer of 1 or more.

In one possible design, when the state obtained after quantization of the non-reference channel quality is less than N bits, a special state value may be cyclically repeated or supplemented to ensure that the number of quantization bits of the non-reference channel quality is N.

In a third aspect, the present application provides a processor, which may include:

at least one circuit for determining a reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2;

at least one circuit for determining a quantization step size based on a reference channel quality;

at least one circuit for quantizing the K channel qualities according to a quantization step;

at least one circuit configured to transmit, by a transmitter, channel quality information to a network device, where the channel quality information is used to indicate a reference channel quality and K quantized values obtained by quantizing the channel quality.

In a fourth aspect, the present application provides a processor, which may include:

the system comprises at least one circuit and a processing circuit, wherein the at least one circuit is used for receiving channel quality information sent by a terminal, and the channel quality information is used for indicating reference channel qualities of K channel qualities and quantized values obtained after the K channel qualities are quantized;

at least one circuit configured to determine a reference channel quality based on the channel quality information;

and the at least one circuit is used for determining a quantization step according to the reference channel quality and acquiring K quantization values obtained after channel quality quantization according to the reference channel quality, the quantization step and the channel quality information.

In a possible design based on the third or fourth aspect, the at least one circuit for determining the quantization step size may be specifically configured to: if the reference channel quality is less than the threshold, determining that the quantization step size is M; if the reference channel quality is greater than or equal to the threshold, determining that the quantization step size is N; m is not equal to N.

In a possible design based on the third or fourth aspect, the at least one circuit for determining the quantization step size may be specifically configured to: determining a quantization step size according to the mapping relation group and the reference channel quality; the mapping relation group comprises at least two mapping relations, and each mapping relation represents the mapping relation between one reference channel quality range and one quantization step.

In a possible design based on the third or fourth aspect, the at least one circuit for determining the quantization step size may be specifically configured to: when the reference channel quality is the maximum of the K channel qualities, the rootDetermining a quantization step size according to one of the following formulas: delta ═ r-A)/2^N，△＝ceil[(r-A)/2^N]，△＝floor[(r-A)/2^N]，△＝(r-A+1)/2^N，△＝ceil[(r-A+1)/2^N]，△＝floor[(r-A+1)/2^N]；

Or, when the reference channel quality is the minimum of the K channel qualities, the quantization step size is determined according to one of the following formulas: delta ═ B-r)/2^N，△＝ceil[(B-r)/2^N]，△＝floor[(B-r)/2^N]，△＝(B-r+1)/2^N，△＝ceil[(B-r+1)/2^N]，△＝floor[(B-r+1)/2^N]；

Wherein, Δ represents quantization step size, Δ is greater than 0, r represents reference channel quality, the value range of the reference channel quality is [ A, B ], A is less than B, N represents quantization bit number of non-reference channel quality, and N is an integer greater than or equal to 1; ceil () represents rounded up and floor () represents rounded down.

In a fifth aspect, the present application provides a processing apparatus comprising:

a memory;

a processor for reading instructions stored in the memory to perform the following operations: determining a reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2; determining a quantization step size according to the reference channel quality; quantizing the K channel qualities according to the quantization step; and sending channel quality information to the network equipment through a sender, wherein the channel quality information is used for indicating the reference channel quality and K quantized values obtained after channel quality quantization. The specific implementation manner of the above operations may refer to the above, and will not be described herein again.

In a sixth aspect, the present application provides a processing apparatus comprising:

a memory;

a processor for reading instructions stored in the memory to perform the following operations: receiving channel quality information sent by a terminal through a receiver, wherein the channel quality information is used for indicating reference channel qualities of K channel qualities and quantized values obtained after the K channel qualities are quantized; determining reference channel quality according to the channel quality information; and determining a quantization step size according to the reference channel quality, and acquiring K quantization values obtained after channel quality quantization according to the reference channel quality, the quantization step size and the channel quality information. The specific implementation manner of the above operations may refer to the above, and will not be described herein again.

The present application also provides a computer storage medium having stored thereon a computer program which, when run on a computer, causes the computer to perform the method of any of the above aspects.

The present application also provides a computer program product which, when run on a computer, causes the computer to perform the method of any of the above aspects.

The present application also provides a communication chip having stored therein instructions that, when run on a network device or terminal, cause the network device or terminal to perform the methods of the above aspects.

It is understood that any one of the devices or processors or processing devices or computer storage media or computer program products provided above is used for executing the corresponding method provided above, and therefore, the beneficial effects achieved by the devices or processors or processing devices or computer storage media or computer program products can refer to the beneficial effects in the corresponding methods, and are not described herein again.

Drawings

Fig. 1 is a schematic diagram of a system architecture to which a method for transmitting channel quality information according to an embodiment of the present invention is applied;

fig. 2 is an interaction diagram of a method for transmitting channel quality information according to an embodiment of the present disclosure;

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

fig. 4 is a schematic structural diagram of another communication device according to an embodiment of the present application.

Detailed Description

The term "plurality" in this application means two or more. The term "and/or" in the present application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. The terms "first", "second", and the like in the present application are used for distinguishing different objects, and do not limit the order of the different objects.

The technical scheme provided by the application can be applied to various communication systems, for example, beams are introduced on the basis of the existing communication system, a 5G communication system, a future evolution system or a plurality of communication fusion systems and the like. A variety of application scenarios may be included, for example, scenarios such as machine-to-machine (M2M), D2M, macro-micro communication, enhanced mobile broadband (eMBB), ultra high reliability and ultra low latency communication (urrllc), and mass internet of things communication (mtc). These scenarios may include, but are not limited to: the communication scene between the terminals, the communication scene between the network equipment and the network equipment, the communication scene between the network equipment and the terminals and the like. The technical scheme provided by the application can also be applied to scenes such as communication between terminals in a 5G communication system or communication between network equipment and the network equipment.

Fig. 1 shows a schematic diagram of a communication system to which the technical solution provided by the present application is applicable, and the communication system may include one or more network devices 100 (only 1 is shown) and one or more terminals 200 (only 1 is shown) connected to each network device. Fig. 1 is a schematic diagram, and does not limit the application scenarios of the technical solutions provided in the present application.

The network device 100 may be a device capable of communicating with the terminal 200. The network device 100 may be a transmission node (TRP), a base station, a relay station, an access point, or the like. The network device 100 may be a Base Transceiver Station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or may be an nb (nodeb) in a Wideband Code Division Multiple Access (WCDMA), or may be an eNB or enodeb in a Long Term Evolution (LTE). The network device 100 may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. Network device 100 may also be a network device in a 5G communication system or a network device in a future evolution network; but also wearable devices or vehicle-mounted devices, etc.

The terminal 200 may be a User Equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent, or a UE device, etc. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN network, etc.

A beam is a communication resource. The beams may be divided into transmit beams and receive beams. A transmit beam, which can be understood as: the distribution of signal strength formed in different directions of space after the signal is sent out by the antenna, and the receiving beam can be understood as: the signal strength distribution of the wireless signals received from the antennas in different directions in space. Different beams may be considered different resources. The same information or different information may be transmitted using different beams. Alternatively, a plurality of beams having the same or similar communication characteristics may be regarded as one beam. One or more antenna ports may be included in a beam for transmitting data channel information, control channel information, sounding signals, and the like. The beam may be embodied in a protocol, for example, but not limited to, spatial filter (spatial filter), reference signal resource index (crs), quasi co-location (QCL), and so on.

The Beam Pair (BPL) is built on the concept of a beam. One beam pair includes one transmission beam of the transmitting-end device and one reception beam of the receiving-end device. In the uplink direction, the sending end device may be a terminal, and the receiving end device may be a network device. In the downlink direction, the sending end device may be a network device, and the receiving end device may be a terminal.

In a communication system, such as a 5G New Radio (NR) system, a network device and a terminal may both generate one or more beams. As an example, beam alignment may be required before transmitting a signal. In addition, when a terminal moves or channel quality changes, it may be necessary to perform beam pair switching, perform communication using a new beam pair, and the like. For example, but not limited to, in a beam alignment, or beam switching scenario, the terminal is required to report at least two channel qualities to the network device. The channel quality may include, for example and without limitation, at least one of: RSRP, Reference Signal Received Quality (RSRQ), signal to interference plus noise ratio (SINR), signal to noise ratio (SNR). The following specific examples are all described with the channel quality being RSRP.

Before reporting the channel quality to the network device, the terminal needs to quantize the actually measured channel quality. At present, the commonly adopted method is as follows: a reference channel quality is selected and then the non-reference channel quality is quantized based on the reference channel quality and a fixed quantization step size of 1 db. The number of quantization bits due to the non-reference channel quality is a fixed value of 4 bits. Therefore, the value range of the quantized value of the non-reference channel quality is 16dbm, and the quantization of the non-reference channel quality by adopting the method can cause the value range after quantization to be too small, thereby causing the quantization loss to be too large and reducing the overall performance gain of the system. For example, assume that the values of the channel quality actually measured are: -135dbm, -125dbm, -90dbm, -138 dbm; if the maximum value of the 4 channel qualities, namely-90 dbm, is taken as the reference channel quality, the value range of the quantized value of the non-reference channel quality is the interval [ -105dbm, -90dbm ], and based on the range, the quantized values of the non-reference channel qualities (namely-135 dbm, -125dbm and-138 dbm) are all-105 dbm. It can be seen that the quantization method provided by the prior art results in a large quantization loss (or a low quantization accuracy), and thus results in a low overall performance gain of the system.

Based on this, the present application provides a method and an apparatus for transmitting channel quality information, and the method and the apparatus for transmitting channel quality information provided by the present application are described below with reference to the accompanying drawings.

As shown in fig. 2, for a method for transmitting channel quality information provided by the present application, the method may include the following steps:

s101: the network device transmits one or more reference signals to the terminal through the X transmit beams.

Wherein the X transmit beams may be some or all transmit beams of the network device. X is an integer of 1 or more. Resource multiplexing may be performed between reference signals transmitted through different transmission beams, for example, time domain and/or frequency domain resource multiplexing may be performed through time division, frequency division, code division, or a combination thereof.

S102: and the terminal receives the reference signal transmitted by each transmitting beam of the network equipment through each receiving beam of the Y receiving beams respectively.

Wherein the Y receive beams may be some or all receive beams of the terminal. Y is an integer of 1 or more.

S103: the terminal estimates the channel quality of the reference signal transmitted by each of the X transmit beams of the network device to each of the Y receive beams of the terminal according to the received reference signal, which is X × Y channel quality. Here, the channel quality refers to the channel quality actually measured.

For example, suppose X is 3 and Y is 2, X transmission beams of the network device are transmission beams 1, 2, 3, and Y reception beams of the terminal are reception beams a, b. Then, S101 to S103 may specifically be: the network equipment respectively transmits reference signals 1, 2 and 3 through transmitting beams 1, 2 and 3; the terminal receives reference signals 1, 2, 3 through a receiving beam a and reference signals 1, 2, 3 through a receiving beam b, and then determines X × Y (i.e. 6) channel qualities from the received reference signals, which are: the channel quality of the reference signal 1 transmitted by the transmit beam 1 and the receive beam a, the channel quality of the reference signal 2 transmitted by the transmit beam 2 and the receive beam a, the channel quality of the reference signal 3 transmitted by the transmit beam 3 and the receive beam a, the channel quality of the reference signal 1 transmitted by the transmit beam 1 and the receive beam b, the channel quality of the reference signal 2 transmitted by the transmit beam 2 and the receive beam b, and the channel quality of the reference signal 3 transmitted by the transmit beam 3 and the receive beam b.

S104: and the terminal selects K channel qualities meeting a preset condition from the X-Y channel qualities.

Wherein K is not less than 2 and not more than X Y, and K is an integer. The value of K may be configured from the network device to the terminal, or determined by the terminal according to its own capability, which is not limited in the present application.

The channel quality satisfying the preset condition is generally a channel quality indicating that the channel condition is good. Taking the channel quality as one of RSRP, RSRQ, SINR, or SNR as an example, the K channel qualities satisfying the preset condition may be K channel qualities whose channel qualities are greater than or equal to a certain threshold, or may be the first K channel qualities in a sequence obtained by sorting X × Y channel qualities from high to low according to the channel qualities. Other examples are not listed.

In one example, the terminal typically transmits at most one channel quality to the network device for each transmit beam of the network device. Based on this, each of the K channel qualities selected in S104 may correspond to one transmission beam. For example, based on the example in S103 above, the K channel qualities selected by the terminal from the 6 channel qualities may include at least one of the following channel qualities: one channel quality for transmit beam 1, one channel quality for transmit beam 2, and one channel quality for transmit beam 3.

S105: the terminal determines a reference channel quality of the K channel qualities.

As an example, the reference signal quality may be at least one value determined by the terminal according to K channel qualities, for example, at least one value of a maximum value, a minimum value, and an average value of the K channel qualities, although the application is not limited thereto. If the reference channel quality includes a plurality of values, the reference channel quality is usually two values, and for example, the reference channel quality may be a maximum value and a minimum value among the K channel qualities, or may be a maximum value and an average value among the K channel qualities. For convenience of description, the reference channel quality shown in the following is illustrated by taking a value as an example, if not illustrated. The determination rule of the reference channel quality, i.e. whether there is one or more and/or specifically what value of the K channel qualities, etc., may be predefined, e.g. in a protocol, or may be configured by the network device to the terminal by signaling.

As an example, the reference signal quality may be at least one value that the network device determines from historical communication information of the terminal and configures to the terminal through signaling. It should be noted that any one of the signaling (for example, signaling configuring reference channel quality, etc.) referred to in the present application may be at least one of RRC signaling, MAC signaling, and DCI. Which will not be described in detail hereinafter.

It will be appreciated that if the reference channel quality is the average of the K channel qualities, then the reference channel quality may not be the value of the K channel qualities. In practical implementation, the reference channel quality may be a value of the K channel qualities, or may not be a value of the K channel qualities, or some reference channel qualities may not be a value of the K channel qualities.

S106: the terminal determines a first quantization step size.

The setting manner of the first quantization step is not limited in the present application, for example, the first quantization step may be a predefined value, for example, a fixed value of 1 db. Although the application is not so limited.

S107: and the terminal quantizes the reference channel quality according to the first quantization step length to obtain a quantized value of the reference channel quality.

As an example, the quantizing the reference channel quality according to the first quantization step may specifically be: the reference channel quality is quantized within a first quantization range according to a first quantization step. Herein, the first quantization range is denoted as interval [ a, B ], wherein a is smaller than B.

For example, taking the channel quality as RSRP for example, the first quantization range may be the interval [ -140dbm, -44dbm ], although not limited thereto. Taking the first quantization range as the interval [ -140dbm, -44dbm ] for example, let K be 4, and 4 channel qualities are: 135dbm, -134dbm, -146dbm, -138dbm, then, if the reference channel quality is-134 dbm, which is the maximum of these 4 channel qualities, since-134 dbm belongs to the interval [ -140dbm, -44dbm ], in this case, the quantized value of the reference channel quality is-134 dbm. If the reference channel quality is-146 dbm, which is the minimum value among the 4 channel qualities, since-146 dbm does not belong to the interval of-140 dbm-44 dbm, the quantized value of the reference channel quality is-140 dbm, which is the minimum value among-140 dbm-44 dbm.

It will be appreciated that if the first quantization range is the interval [ -140dbm, -44dbm]And the first quantization step is 1db, the set of possible quantization values for the reference channel quality is-140 dbm, -139dbm, -138dbm … … -44dbm, so that 7 bits (i.e. 2 bits in total) can be used⁷128 states) to indicate the quantized value of the reference channel quality, i.e., the number of quantized bits of the reference channel quality is 7 bits.

S108: and the terminal determines a second quantization step according to the quantization value of the reference channel quality.

If there are two values for the reference channel quality, the terminal may determine the second quantization step size according to any one of the two values. Which value the terminal uses may be predefined, e.g. in a protocol, or configured by the network device to the terminal by signaling.

In this application, the second quantization step is associated with (or has a mapping relation with) a quantized value of the reference channel quality. The mapping relationship may be predefined, and may be embodied by, for example and without limitation, a table, a formula, or the like.

The following lists several specific implementations of the second quantization step size provided by the present application in relation to the quantized value of the reference channel quality:

mode 1: if the quantized value of the reference channel quality is less than the threshold, it is determined that the second quantization step is M. If the quantized value of the reference channel quality is greater than or equal to the threshold, determining that the second quantization step is N; wherein M is not equal to N.

Optionally, when the reference channel quality is a maximum value of the K channel qualities, M is smaller than N. When the reference channel quality is the minimum of the K channel qualities, M is greater than N.

For example, the threshold is-109 dbm, M ═ 2db, and N ═ 4 db. Let K be 4, and 4 channel qualities are: -135dbm, -125dbm, -90dbm, -138 dbm. Then-90 dbm is greater than the threshold if the reference channel quality is the maximum of these 4 channel qualities, i.e. -90dbm, and therefore the second quantization step is 4 db.

For example, the threshold is-109 dbm, M is 4db, and N is 2 db. Let K be 4, and 4 channel qualities are: -135dbm, -125dbm, -90dbm, -138 dbm. Then the reference channel quality is the minimum of these 4 channel qualities, i.e., -138dbm, then-138 dbm is less than the threshold, and thus the second quantization step is 4 db.

Any one or more of the threshold, M, and N may be predefined, for example, predefined by a protocol, or configured to the terminal by the network device through signaling to the terminal.

As an example, the threshold value is equal to a threshold value for channel quality set when resuming communication between the terminal and the network device. It should be noted that, when/after the communication between the terminal and the network device fails, in order to recover the communication between the terminal and the network device, candidate reference signal resources with channel quality higher than a threshold value need to be detected in the candidate reference signal resource set. In this embodiment, the set threshold value is equal to the threshold value. The setting mode of the threshold value is not limited in the present application, and may be predefined, for example, predefined by a protocol, or may be configured by a network device by sending a signaling to a terminal. The communication failure may include, for example and without limitation, one of the following situations: first, when the quality of a beam for transmitting Physical Downlink Control Channel (PDCCH) information and a beam for receiving PDCCH information by a terminal drops to a sufficiently low level, a communication failure occurs, that is, when the quality of a beam pair for transmitting a PDCCH drops to a sufficiently low level. The quality drop to be sufficiently low may be embodied, for example but not limited to: the quality of the signal received by the terminal is less than a threshold or the terminal cannot receive the signal within a predetermined time window. Secondly, the network equipment configures reference signal resources which satisfy the quasi co-location QCL relation with the control channel for the terminal, and when the channel quality of the reference signal resources is lower than a threshold, the communication is considered to be failed. Typically, the threshold (e.g., the threshold in (r) above) is less than or equal to a threshold value for the channel quality set when the communication between the terminal and the network device is restored.

As an example, the threshold value is equal to a threshold value for determining channel quality set when communication fails.

Mode 2: if the reference channel quality is the maximum value among the K channel qualities, the larger the quantization value of the reference channel quality, the larger the second quantization step size. If the reference channel quality is the minimum value among the K channel qualities, the larger the quantization value of the reference channel quality is, the smaller the second quantization step size is.

In this way, each quantized value of the reference channel quality corresponds to a second quantization step, and the second quantization steps corresponding to quantized values of different reference channel qualities are different.

Mode 3: if the reference channel quality is the maximum value among the K channel qualities, the larger the value in the quantization value range of the reference channel quality is, the larger the second quantization step corresponding to the quantization value range of the reference channel quality is.

In this way, each quantized value range of the reference channel quality corresponds to one second quantization step, and the second quantization step corresponding to the quantized value ranges of different reference channel qualities is different. Wherein the first quantization range [ a, B ] may include at least two quantized value ranges of reference channel quality, and each quantized value range of reference channel quality may include at least two quantized values of reference channel quality. There is no intersection between the quantized value ranges of different reference channel qualities.

Firstly, taking the mapping relation as a table as an example:

assuming that the reference channel quality is RSRP, the reference channel quality is the maximum value among K channel qualities, and the first quantization range is the interval [ -140dbm, -44dbm ], a mapping relationship between the quantization value range of the reference channel quality and the second quantization step size may be as shown in table 1 or table 2.

TABLE 1

Range of quantized value of RSRP (unit: dbm)	Second quantization step size (unit: db)
		-140～-139	0.125
-138～-137	0.25
		-136～-133	0.5
-132～-125	1
		-124～-109	2
-108～-77	4
		-76～-44	6

TABLE 2

Range of quantized value of RSRP (unit: dbm)	Second quantization step size (unit: db)
		-140～-125	1
-124～-109	2
		-108～-77	4
-76～-44	6

Where table 1 and table 2 differ in that the second quantization step size in table 1 may be greater than 1, equal to 1, or less than 1. The second quantization step sizes in table 2 are each greater than or equal to 1.

Assuming that the reference channel quality is RSRP, the reference channel quality is the minimum value among K channel qualities, and the first quantization range is the interval [ -140dbm, -44dbm ], a mapping relationship between the quantization value range of the reference channel quality and the second quantization step size may be as shown in table 3 or table 4.

TABLE 3

Range of quantized value of RSRP (unit: dbm)	Second amount ofStep size (unit: db)
		-140～-139	6
-138～-137	4
		-136～-133	2
-132～-125	1
		-124～-109	0.5
-108～-77	0.25
		-76～-44	0.125

TABLE 4

Range of quantized value of RSRP (unit: dbm)	Second quantization step size (unit: db)
		-140～-125	6
-124～-109	4
		-108～-77	2
-76～-44	1

Where table 3 differs from table 4 in that the second quantization step size in table 3 may be greater than 1, equal to 1, or less than 1. The second quantization step sizes in table 4 are each greater than or equal to 1. The technical solutions shown in table 3 can improve accuracy, and the technical solutions shown in table 4 can make implementation of the terminal simple.

Taking the mapping relation as an example:

when the reference channel quality is the maximum of the K channel qualities, the second quantization step may be determined according to one of the following formulas: delta ═ r-A)/2^N，△＝ceil[(r-A)/2^N]，△＝floor[(r-A)/2^N]，△＝(r-A+1)/2^N，△＝ceil[(r-A+1)/2^N]，△＝floor[(r-A+1)/2^N]。

When the reference channel quality is the minimum of the K channel qualities, the second quantization step may be determined according to one of the following formulas: delta ═ B-r)/2^N，△＝ceil[(B-r)/2^N]，△＝floor[(B-r)/2^N]，△＝(B-r+1)/2^N，△＝ceil[(B-r+1)/2^N]，△＝floor[(B-r+1)/2^N]。

Wherein, Δ represents a second quantization step, r represents a quantization value of the reference channel quality, and a value range of the quantization value of the reference channel quality, that is, the first quantization range is [ a, B ], N is a quantization bit number of the non-reference channel quality, and N is an integer greater than or equal to 1; ceil () represents rounded up and floor () represents rounded down.

Based on the above mode 2 or mode 3, the terminal may search a predefined table for a second quantization step corresponding to any one of the quantized values of the reference channel quality. Or, the terminal may calculate the second quantization step corresponding to the quantization value of any reference channel quality through a predefined formula. For example, if the reference channel quality is the maximum value among the K channel qualities, the quantized value of the reference channel quality is-135 dbm, and both the terminal and the network device use the mapping relationship shown in table 1, the terminal may determine, by looking up table 1, that the second quantization step corresponding to the quantized value of the reference channel quality-135 dbm is: and the second quantization step size is 0.5db corresponding to the quantization value range of the reference channel quality (namely-136 to-133 dbm) in which the-135 dbm is positioned. For another example, if the reference channel quality is the minimum value among the K channel qualities, the quantized value of the reference channel quality is-135 dbm, and both the terminal and the network device use the mapping relationship shown in table 3, the terminal may determine, by looking up table 3, that the second quantization step corresponding to the quantized value of the reference channel quality-135 dbm is: and 2db corresponding to the reference channel quality range (namely-136 to-133 dbm) in which the-135 dbm is positioned.

S109: and the terminal quantizes the K channel qualities according to the quantized value of the reference channel quality and the second quantization step.

Specifically, the terminal quantizes the non-reference channel quality of the K channel qualities according to the second quantization step.

If the reference channel quality is one of the K channel qualities, S109 may specifically be: and the terminal quantizes K-1 channel qualities except the reference channel quality in the K channel qualities according to the second quantization step.

If the reference channel quality is not a value of the K channel qualities, S109 may specifically be: and the terminal quantizes the K channel qualities according to the second quantization step.

If the reference channel quality is two values, for example, a maximum value and a minimum value, among the K channel qualities, S109 may specifically be: and the terminal quantizes K-2 channel qualities except the reference channel quality in the K channel qualities according to the second quantization step.

Usually, the number of quantization bits of the non-reference channel quality is a fixed value N, N is a value equal to or greater than 1, for example, N is 4. Although the application is not so limited. Hereinafter, the number of quantization bits of the non-reference channel quality is 4 as an example.

As an example, quantizing the K channel qualities according to the quantized value of the reference channel quality and the second quantization step size may include:

implementation mode 1: determining the actual quantization range of the non-reference channel quality according to the quantization value r of the reference channel quality, the second quantization step delta and the quantization bit number N of the non-reference channel quality; then, the non-reference channel quality of the K channel qualities is quantized within an actual quantization range of the non-reference channel quality.

For example, if the quantized value of the reference channel quality is the maximum of the K channel qualities, the actual quantization range of the non-reference channel quality may specifically be [ r- Δ [ (2) ]^N-1)，r]Or [ r- Δ x 2 ]^N，r-△]. If the quantized value of the reference channel quality is the minimum of the K channel qualities, the actual quantization range of the non-reference channel quality may be r, r + Δ (2)^N-1)]Or [ r-Delta, r +. DELTA.. 2 ]^N]. Wherein Δ is greater than 0.

Implementation mode 2: determining the actual quantization range of the non-reference channel quality according to the reference channel quality r, the second quantization step delta, the quantization bit number N of the non-reference channel quality and the second quantization range [ C, D ]; then, within the actual quantization range, the non-reference channel quality of the K channel qualities is quantized. Wherein the second quantization range C, D is a predefined one. The second quantization range may or may not be the same as the first quantization range. C is less than D.

For example, if the quantized value of the reference channel quality is the maximum of the K channel qualities, the actual quantization range of the non-reference channel quality may be [ max { r- Δ [ (2) ]^N-1)，C}，r]. If the quantized value of the reference channel quality is the minimum value of the K channel qualities, the actual quantization range of the non-reference channel quality may be [ r, min { r + [ delta ] (2)^N-1)，D}]。

Implementation mode 3: if the reference channel quality is two values of the K channel qualities, the two values are typically used to determine the actual quantization range of the non-reference channel quality; then, K-2 channel qualities other than the reference channel quality among the K channel qualities are quantized within the actual quantization range based on the reference channel quality used to determine the second quantization step.

For example, if the reference channel quality is the minimum value E and the maximum value F of the K channel qualities, E being smaller than F, the actual quantization range of the non-reference channel quality may specifically be [ E, F ].

In addition, embodiment 3 can also be used in combination with embodiment 1 or embodiment 2.

For example, if implementation 3 is combined with implementation 1, when the maximum of the K channel qualities is used for determining the second quantization step, the actual quantization range of the non-reference channel quality may specifically be [ max { r- Δ [ (2) ]^N-1)，E}，min{r，F}](ii) a When the minimum of the K channel qualities is used for determining the second quantization step, the actual quantization range of the non-reference channel quality may be specifically [ max { r, E }, min { r +. DELTA. (2) }^N-1)，F}]。

As another example, if the implementation 3 is combined with the implementation 2, when the maximum value of the K channel qualities is used for determining the second quantization step, the actual quantization range of the non-reference channel quality may be [ max { r- Δ [ (2) ]^N-1)，E，C}，min{r，F}](ii) a When the minimum of the K channel qualities is used for determining the second quantization step, the actual quantization range of the non-reference channel quality may be specifically [ max { r, E }, min { r +. DELTA. (2) }^N-1)，F，D}]。

The above steps are explained below by specific examples:

let K be 4, and 4 channel qualities are: 135dbm, -112dbm, -146dbm, -138dbm, the second quantization range being the interval [ -140dbm, -44dbm ], and the mapping relationship between the quantized value of the reference channel quality and the second quantization step size is as shown in table 2 above. Then:

example 1, the reference channel quality may be-112 dbm, which is the maximum of the 4 channel qualities, in which case the actual quantization range of the non-reference channel quality may be the interval [ -140dbm, -112dbm ], and the quantized value of the reference channel quality-112 bm is-112 dbm. Referring to table 2, the second quantization step is 2 db. It can be seen that the set of possible quantized values of non-channel quality is { -112dbm, -114dbm, -116dbm … … -140dbm }, as shown in table 5.

TABLE 5

Example 2: the reference channel quality may be the minimum of the 4 channel qualities, i.e., -146dbm, and the quantized value of the reference channel quality of-146 dbm is-140 dbm. Referring to table 2, the second quantization step corresponding to the quantized value of-140 dbm of the reference channel quality is 1 db. It can be seen that the set of possible quantized values of the non-reference channel quality is { -140dbm, -139dbm, -138dbm, … … -125dbm }, and the actual quantization range of the non-reference channel quality can be the interval [ -140dbm, -125dbm ], as shown in table 6.

TABLE 6

In some embodiments of the present application, when the state obtained after the quantization of the non-reference channel quality is less than N bits, a special state value (e.g., 0) may be cyclically repeated or supplemented to ensure that the number of quantization bits of the non-reference channel quality is N. For example, assuming that the actual quantization range of the non-reference channel quality is [ -140dbm, -138dbm ], and the second quantization step is 1db, only 2 bits are needed to indicate all possible quantization values of the non-reference channel quality, 6 bits are needed in total, and states 00, 01, 10 can be used to indicate the quantization values in this range, respectively. Then, when actually transmitted, 000110 and the complementary status bits 000000 may be used to represent each quantized value within the range. Alternatively, 000110 and cyclically repeated 000110 may be used to represent each quantized value within the range.

S110: and the terminal generates and sends channel quality information to the network equipment, wherein the channel quality information is used for indicating the reference channel quality and K quantized values obtained after channel quality quantization. Specifically, the channel quality information is used to indicate a quantized value obtained by quantizing the reference channel quality in S107 and a quantized value obtained by quantizing the non-reference channel quality among the K channel qualities in S109.

As an example, the channel quality information may include: an index of the quantized value of the reference channel quality, and an index of the quantized value of each non-reference channel quality of the K channel qualities. Wherein the index of the quantized value of the reference channel quality is used to indicate the quantized value of the reference channel quality and the index of the quantized value of the non-reference channel quality is used to indicate the quantized value of the non-reference channel quality.

For example, if the reference channel quality is the maximum of the K channel qualities, the quantized value of the channel quality indicated by the index of the quantized value of the i-th reference channel quality is max { r-i x Δ, a }, i is [0, 2 [ ]^N-1]N is the number of quantization bits of the non-reference channel quality, and N is an integer of 1 or more. Where Δ represents a second quantization step size, Δ is greater than 0, and r represents a quantized value of the reference channel quality. Alternatively, the correspondence between the index of the quantized value of the non-reference channel quality and the quantized value of the non-reference channel quality may be as shown in table 7, where table 7 illustrates an example in which the number of quantized bits of the non-reference channel quality is 4.

TABLE 7

Indexing of quantized values of non-reference channel quality	Quantized values of non-reference channel quality
		0000	Quantized value of reference channel quality
0001	max{r-△，A}
		0010	max{r-2*△，A}
……	……
		1111	max{r-15*△，A}

As another example, if the reference channel quality is the minimum of the K channel qualities, the quantized value of the channel quality indicated by the index of the quantized value of the i-th reference channel quality is min { r + i Δ, B }. Alternatively, the correspondence between the index of the quantized value of the non-reference channel quality and the quantized value of the non-reference channel quality may be as shown in table 8. Note that table 8 explains an example in which the number of quantization bits of the non-reference channel quality is 4.

TABLE 8

Indexing of quantized values of non-reference channel quality	Quantized values of non-reference channel quality
		0000	Quantized value of reference channel quality
0001	min{r+△，B}
		0010	min{r+2*△，B}
……	……
		1111	min{r+15*△，B}

As an example, the channel quality information may include: an index of a quantized value of the reference channel quality, and an index of a differential channel quality of each non-reference channel quality quantized value of the K channel qualities relative to the quantized value of the reference channel quality, wherein the index of the differential channel quality is used to indicate the differential channel quality.

For example, if the reference channel quality is the maximum value among the K channel qualities, the correspondence between the index of the quantized value of the differential channel quality and the quantized value of the differential channel quality may be as shown in table 9. Note that table 9 explains an example in which the number of quantization bits of the non-reference channel quality is 4.

TABLE 9

Indexing of quantized values of differential channel quality	Quantized values of differential channel quality
		0000	0
0001	△
		0010	2*△
……	……
		1111	15*△

For another example, if the reference channel quality is the minimum value among the K channel qualities, the correspondence between the index of the quantized value of the differential channel quality and the quantized value of the differential channel quality may be as shown in table 10. Note that table 10 explains an example in which the number of quantization bits of the non-reference channel quality is 4.

Watch 10

Indexing of quantized values of differential channel quality	Quantized values of differential channel quality
		0000	0
0001	-△
		0010	-2*△
……	……
		1111	-15*△

Based on any of the above examples, the channel quality information may further include: reference signal resource index corresponding to each non-reference channel quality in the K channel qualities.

The terminal may send the channel quality information to the network device through a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH).

In some implementations, if the reference channel quality is configured to the terminal by the network device, in S110, the channel quality information may not be used to indicate the reference channel quality.

S111: and the network equipment receives the channel quality information sent by the terminal and determines the quantized value of the reference channel quality according to the index of the quantized value of the reference channel quality.

S112: the network device determines a second quantization step size from the quantized value of the reference channel quality.

The network device may store in advance a mapping relationship between the quantized value of each reference channel quality and the second quantization step size. For the mapping relationship between the quantized value of the reference channel quality and the second quantization step, and how to determine the second quantization step according to the quantized value of the reference channel quality, reference may be made to the above description, which is not repeated herein.

S113: the network device determines a quantized value of a non-reference channel quality of the K channel qualities according to the quantized value of the reference signal, the second quantization step, and information indicating the quantized value of the non-reference channel quality of the K channel qualities.

If the information indicating the quantized value of the non-reference channel quality among the K channel qualities is an index of the quantized value of the non-reference channel quality, as shown in table 7 or table 8, correspondingly, in S113, the network device may determine the quantized value of each non-reference channel quality among the K channel qualities, as shown in table 7 or table 8, according to a correspondence between the index of the quantized value of the non-reference channel quality and the quantized value of the non-reference channel quality. For example, referring to table 5, assuming that the quantized value of the reference channel quality is-112 dbm and the quantized values of the non-reference channel qualities among the K channel qualities are-134 dbm, -140dbm, and-138 dbm, respectively, the terminal may obtain the indexes of the quantized values of the 3 non-reference channel qualities based on table 7, and similarly, in S113, the network device may obtain the quantized values of the non-reference channel qualities indicated by the indexes of the quantized values of the 3 non-reference channel qualities based on table 7, that is, -134dbm, -140dbm, and-138 dbm.

If the information indicating the quantized value of the non-reference channel quality among the K channel qualities is an index of the quantized value of the differential channel quality, as shown in table 9 or table 10, correspondingly, in S113, the network device may determine the quantized value of the differential channel quality indicated by the quantized value index of each differential channel quality included in the channel quality information, as shown in table 9 or table 10, according to a correspondence between the index of the quantized value of the differential channel quality and the quantized value of the differential channel quality, and then determine the quantized value of each non-reference channel quality among the K channel qualities, based on the quantized value of the reference channel quality and the determined quantized value of each differential channel quality. For example, referring to table 5, assuming that the quantized value of the reference channel quality is-112 dbm and the quantized values of the non-reference channel qualities among the K channel qualities are-134 dbm, -140dbm, and-138 dbm, respectively, the terminal may first acquire the quantized values of the 3 non-reference channel qualities with respect to the quantized value of the differential channel quality of-112 dbm, that is: 32db, 28db and 26 db; then, based on table 9, the indexes of the quantized values of the 3 differential channel qualities are obtained, and similarly, in S113, the network device may obtain the quantized values of the non-reference channel qualities indicated by the indexes of the quantized values of the 3 differential channel qualities based on table 9, that is, 32db, 28db, and 26 db; then, quantized values of non-reference channel qualities among the K channel qualities, that is, -134dbm, -140dbm, and-138 dbm, are obtained based on the quantized values of the reference channel quality being-112 db and the quantized values of the 3 differential channel qualities 32db, 28db, and 26 db.

After S113, the network device may select one beam pair from the K beam pairs according to the quantized values of the K channel qualities, and indicate to the terminal. Subsequently, the network device transmits information using the transmit beam in the beam pair, and the terminal receives the information using the receive beam in the beam pair. Wherein the information includes, for example but not limited to, at least one of the following: control channel information, data channel information, or sounding signals, etc.

In the method for transmitting channel quality provided in this embodiment, when a terminal needs to report a plurality of channel qualities, a quantization step for quantizing non-reference channel qualities is determined based on reference channel qualities. Therefore, the value range of the quantized value of the non-reference channel quality determined according to the reference channel quality and the quantization step is not fixed and unchanged, so that the value range of the quantized value of the non-reference channel quality can be adjusted by reasonably setting the quantization step when the non-reference channel quality is quantized, and the whole performance gain of a system is improved.

The scheme provided by the embodiment of the application is mainly introduced from the perspective of a method. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the terminal and the network device may be divided into the functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Fig. 3 is a schematic diagram of a communication device according to an embodiment of the present application. The communication device shown in fig. 3 may comprise a processing unit 301 and a transceiving unit 302. The communication device may be a terminal or a network device.

If the communication device 30 is a terminal, the terminal may be configured to perform the steps performed by the terminal in any of the embodiments described above.

In one possible design, processing unit 301 may be configured to: determining a reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2; determining a quantization step size according to the reference channel quality; and quantizing the K channel qualities according to the quantization step size. The transceiving unit 302 may be configured to: and sending channel quality information to the network equipment, wherein the channel quality information is used for indicating the reference channel quality and K quantized values obtained after channel quality quantization. For example, in conjunction with fig. 2, processing unit 301 may be configured to perform S105, S108, and S109. In addition, the method can also be used for executing S103, S104, S106 and S107. The transceiving unit 302 may be configured to perform the transmitting step in S110.

If the communication device 30 is a network device, the network device may be configured to perform the steps performed by the network device in any of the embodiments described above.

In one possible design, the transceiver unit 302 may be configured to: and receiving channel quality information sent by a terminal, wherein the channel quality information is used for indicating reference channel qualities of K channel qualities and quantized values obtained after the K channel qualities are quantized. The processing unit 301 may be configured to: and the quantization step size is determined according to the reference channel quality, and K quantization values obtained after channel quality quantization are obtained according to the reference channel quality, the quantization step size and the channel quality information. For example, in conjunction with fig. 2, the transceiving unit 302 may be configured to perform the receiving step in S110. The processing unit 301 may be configured to perform S111, S112, and S113.

Whether the communication device 30 is a terminal or a network device, the following technical solutions can be applied:

in one possible design, the processing unit 301 may be specifically configured to: if the reference channel quality is less than the threshold, determining that the quantization step size is M; if the reference channel quality is greater than or equal to the threshold, determining that the quantization step size is N; m is not equal to N.

In one possible design, when the reference channel quality is the maximum of the K channel qualities, the larger the reference channel quality, the larger the quantization step size; or, when the reference channel quality is the minimum of the K channel qualities, the larger the reference channel quality is, the smaller the quantization step size is.

In one possible design, the processing unit 301 may be specifically configured to: determining a quantization step size according to the mapping relation group and the reference channel quality; the mapping relation group comprises at least two mapping relations, and each mapping relation represents the mapping relation between one reference channel quality range and one quantization step.

In one possible design, the processing unit 301 may be specifically configured to: when the reference channel quality is the maximum of the K channel qualities, the quantization step size is determined according to one of the following formulas: delta ═ r-A)/2^N，△＝ceil[(r-A)/2^N]，△＝floor[(r-A)/2^N]，△＝(r-A+1)/2^N，△＝ceil[(r-A+1)/2^N]，△＝floor[(r-A+1)/2^N]；

In one possible design, the processing unit 301 may be specifically configured to: the channel quality information includes: indexes of quantized values obtained after K channel qualities are quantized; when the reference channel quality is the maximum of the K channel qualities, the quantized value of the channel quality indicated by the ith index is max { r-i Δ, A }, i is [0, 2 ] delta^N-1]Is an integer of (1). Or when the reference channel quality is the minimum of the K channel qualities, the signal indicated by the ith indexThe quantization value of the channel quality is min { r + i Δ, B }, i is [0, 2 ]^N-1]The whole number of (1); wherein, Delta represents the quantization step size, r represents the reference channel quality, and the value range of the reference channel quality is [ A, B]Where A is less than B, N represents the number of quantization bits of the non-reference channel quality, and N is an integer of 1 or more.

Since the communication device provided in the embodiment of the present application may be configured to execute the beam configuration method, reference may be made to the method embodiment for obtaining technical effects, and details of the embodiment of the present application are not repeated herein.

A hardware implementation of the communication device 30 may refer to fig. 4. As shown in fig. 4, the communication device 40 may include: a memory 401, a processor 402, a transceiver 403, and a bus 404; the memory 401, the processor 402, and the transceiver 403 are connected to each other via a bus 404. The processing unit 302 may be implemented by a processor 402. The transceiving unit 301 may be implemented by a transceiver 403. The memory 401 is used to store computer programs.

When the communication device 30 is a terminal, the computer program stored in the memory 401 causes the terminal to perform the steps performed by the terminal above when executed by the processor 402. The transceiver 403 is used to communicate with other communication devices (e.g., network devices) under the control of the processor 402.

When the communication device 30 is a network device, the computer program stored in the memory 401 causes the network device to perform the steps performed by the network device above when executed by the processor 402. The transceiver 403 is used for communicating with other communication devices, such as terminals, under the control of the processor 402.

The memory 401 may be a memory chip or the like. The processor 402 may be a CPU, general purpose processor, Digital Signal Processor (DSP), application-specific integrated circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The bus 404 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 4, but this does not indicate only one bus or one type of bus.

Since the management node provided in the embodiment of the present application may be configured to execute the locking method for access operation to shared resources, reference may be made to the above method embodiment for obtaining technical effects, and details of the embodiment of the present application are not described herein again.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processing module. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash memory, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), registers, a hard disk, a removable disk, a compact disc read only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC.

Those skilled in the art will recognize that in one or more of the examples described above, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above embodiments are further described in detail for the purpose, technical solutions and advantages of the present application, and it should be understood that the above embodiments are only specific embodiments of the present application, and are not intended to limit the scope of the present application.

Claims

1. A method for transmitting channel quality information, the method being applied to a terminal and comprising:

determining a reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2;

determining a quantization step according to the reference channel quality;

quantizing the K channel qualities according to the quantization step;

and sending channel quality information to network equipment, wherein the channel quality information is used for indicating the reference channel quality and quantized values obtained after the K channel qualities are quantized.

2. The method of claim 1, wherein the channel quality comprises at least one of the following parameters: reference signal received power, reference signal received quality, channel quality indication, signal to interference plus noise ratio, signal to noise ratio.

3. The method according to claim 1 or 2, wherein the determining a quantization step size according to the reference channel quality comprises:

if the reference channel quality is less than a threshold, determining that the quantization step size is M; determining that the quantization step is N if the reference channel quality is greater than or equal to the threshold; the M is not equal to the N.

4. The method of claim 3,

when the reference channel quality is a maximum of the K channel qualities, the M is less than the N;

or, when the reference channel quality is the minimum value of the K channel qualities, the M is greater than the N.

5. The method of claim 3, wherein at least one of the threshold, the M, and the N is predefined or configured by the network device to the terminal.

6. The method of claim 3, wherein the threshold is equal to a threshold for channel quality set when resuming communication between the terminal and the network device.

7. The method according to claim 1 or 2, wherein when the reference channel quality is the maximum of the K channel qualities, the larger the reference channel quality, the larger the quantization step size; or, when the reference channel quality is the minimum value among the K channel qualities, the larger the reference channel quality is, the smaller the quantization step size is.

8. The method according to claim 1 or 2, wherein the determining a quantization step size according to the reference channel quality comprises:

determining the quantization step according to the mapping relation group and the reference channel quality; wherein the mapping relation set comprises at least two mapping relations, each mapping relation represents a mapping relation between one reference channel quality range and one quantization step.

9. The method according to claim 1 or 2, wherein the determining a quantization step size according to the reference channel quality comprises:

when the reference channel quality isDetermining the quantization step size according to one of the following formulas at the maximum of the K channel qualities: delta ═ r-A)/2^N，△＝ceil[(r-A)/2^N]，△＝floor[(r-A)/2^N]，△＝(r-A+1)/2^N，△＝ceil[(r-A+1)/2^N]，△＝floor[(r-A+1)/2^N]；

Or, when the reference channel quality is the minimum of the K channel qualities, determining the quantization step according to one of the following formulas: delta ═ B-r)/2^N，△＝ceil[(B-r)/2^N]，△＝floor[(B-r)/2^N]，△＝(B-r+1)/2^N，△＝ceil[(B-r+1)/2^N]，△＝floor[(B-r+1)/2^N]；

Wherein, the Δ represents the quantization step size, Δ is greater than 0, the r represents the reference channel quality, the value range of the reference channel quality is [ A, B ], A is smaller than B, N represents the quantization bit number of the non-reference channel quality, and N is an integer greater than or equal to 1; ceil () represents rounded up and floor () represents rounded down.

10. The method according to claim 1 or 2, wherein the channel quality information comprises: indexes of quantized values obtained after the K channel qualities are quantized;

when the reference channel quality is the maximum of the K channel qualities, the quantized value of the channel quality indicated by the ith index is max { r-i Δ, A }, i is [0, 2 [ ]^N-1]The whole number of (1);

or, when the reference channel quality is the minimum value among the K channel qualities, the quantized value of the channel quality indicated by the ith index is min { r + i Δ, B }, i is [0, 2 }^N-1]The whole number of (1);

wherein Δ represents the quantization step, r represents the reference channel quality, and the reference channel quality has a value range of [ a, B ], where a is smaller than B, N represents the number of quantization bits of the non-reference channel quality, and N is an integer greater than or equal to 1.

11. A method for transmitting channel quality information, the method being applied to a network device and comprising:

receiving channel quality information sent by a terminal, wherein the channel quality information is used for indicating reference channel qualities of K channel qualities and quantized values obtained after the K channel qualities are quantized; wherein K is an integer of 2 or more;

determining the reference channel quality according to the channel quality information;

and determining a quantization step size according to the reference channel quality, and acquiring quantization values obtained after the K channel qualities are quantized according to the reference channel quality, the quantization step size and the channel quality information.

12. The method of claim 11, wherein the channel quality comprises at least one of the following parameters: reference signal received power, reference signal received quality, channel quality indication, signal to interference plus noise ratio, signal to noise ratio.

13. The method according to claim 11 or 12, wherein said determining a quantization step size based on said reference channel quality comprises:

14. The method of claim 13,

15. The method of claim 13, wherein at least one of the threshold, the M, and the N is predefined or configured by the network device to the terminal.

16. The method of claim 13, wherein the threshold is equal to a threshold for channel quality set when resuming communication between the terminal and the network device.

17. The method according to claim 11 or 12, wherein when the reference channel quality is the maximum of the K channel qualities, the larger the reference channel quality, the larger the quantization step size; or, when the reference channel quality is the minimum value among the K channel qualities, the larger the reference channel quality is, the smaller the quantization step size is.

18. The method according to claim 11 or 12, wherein said determining a quantization step size based on said reference channel quality comprises:

19. The method according to claim 11 or 12, wherein said determining a quantization step size based on said reference channel quality comprises:

when the reference channel quality is the maximum of the K channel qualities, determining the quantization step according to one of the following formulas: delta ═ r-A)/2^N，△＝ceil[(r-A)/2^N]，△＝floor[(r-A)/2^N]，△＝(r-A+1)/2^N，△＝ceil[(r-A+1)/2^N]，△＝floor[(r-A+1)/2^N]；

20. The method according to claim 11 or 12, wherein the channel quality information comprises: indexes of quantized values obtained after the K channel qualities are quantized;

21. A terminal, characterized in that the terminal comprises:

a processing unit for determining a reference channel quality of K channel qualities, wherein K is an integer greater than or equal to 2; determining a quantization step according to the reference channel quality; and quantizing the K channel qualities according to the quantization step;

a transceiving unit, configured to send channel quality information to a network device, where the channel quality information is used to indicate the reference channel quality and quantized values obtained after the K channel qualities are quantized.

22. The terminal of claim 21, wherein the channel quality comprises at least one of the following parameters: reference signal received power, reference signal received quality, channel quality indication, signal to interference plus noise ratio, signal to noise ratio.

23. The terminal according to claim 21 or 22, wherein said determining a quantization step size based on said reference channel quality comprises:

24. The terminal of claim 23,

25. The terminal of claim 23, wherein at least one of the threshold, the M, and the N is predefined or configured by the network device to the terminal.

26. The terminal of claim 23, wherein the threshold is equal to a threshold for channel quality set when resuming communication between the terminal and the network device.

27. The terminal according to claim 21 or 22, wherein when the reference channel quality is the maximum of the K channel qualities, the larger the reference channel quality, the larger the quantization step size; or, when the reference channel quality is the minimum value among the K channel qualities, the larger the reference channel quality is, the smaller the quantization step size is.

28. The terminal according to claim 21 or 22, wherein said determining a quantization step size based on said reference channel quality comprises:

29. The terminal according to claim 21 or 22, wherein said determining a quantization step size based on said reference channel quality comprises:

30. The terminal according to claim 21 or 22, wherein the channel quality information comprises: indexes of quantized values obtained after the K channel qualities are quantized;

31. A network device, characterized in that the network device comprises:

a transceiving unit, configured to receive channel quality information sent by a terminal, where the channel quality information is used to indicate reference channel qualities of K channel qualities and quantized values obtained after the K channel qualities are quantized; wherein K is an integer of 2 or more;

and the processing unit is used for determining a quantization step size according to the reference channel quality and acquiring the quantized values obtained after the K channel qualities are quantized according to the reference channel quality, the quantization step size and the channel quality information.

32. The network device of claim 31, wherein the channel quality comprises at least one of the following parameters: reference signal received power, reference signal received quality, channel quality indication, signal to interference plus noise ratio, signal to noise ratio.

33. The network device of claim 31 or 32, wherein the determining a quantization step size according to the reference channel quality comprises:

34. The network device of claim 32,

35. The network device of claim 32, wherein at least one of the threshold, the M, and the N is predefined or configured to the terminal by the network device.

36. The network device of claim 32, wherein the threshold is equal to a threshold for channel quality set when resuming communication between the terminal and the network device.

37. The network device according to claim 31 or 32, wherein when the reference channel quality is the maximum of the K channel qualities, the larger the reference channel quality, the larger the quantization step size; or, when the reference channel quality is the minimum value among the K channel qualities, the larger the reference channel quality is, the smaller the quantization step size is.

38. The network device of claim 31 or 32, wherein the determining a quantization step size according to the reference channel quality comprises:

39. The network device of claim 31 or 32, wherein the determining a quantization step size according to the reference channel quality comprises:

40. The network device of claim 31 or 32, wherein the channel quality information comprises: indexes of quantized values obtained after the K channel qualities are quantized;

or, when the reference channel quality is the minimum value among the K channel qualities, a quantized value of the channel quality indicated by the ith indexIs min { r + i Δ, B }, i is [0, 2 ]^N-1]The whole number of (1);