Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.
Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be referred to as a terminal device or a User Equipment (UE), and the terminal 11 may be a terminal-side device such as a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet device (Mobile INTERNET DEVICE, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), and the wearable device includes: smart watches, bracelets, headphones, eyeglasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, where the base station may be called a node B, an evolved node B, an access Point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access Point, a WiFi node, a transmission and reception Point (TRANSMITTING RECEIVING Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that, in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
In describing embodiments of the present invention, some concepts used in the following description are first explained.
And (3) a step of: multi-TRP transmission techniques.
The protocol standardizes multiple transmit receive point/multiple antenna panel scenarios. The multi-TRP can be divided into an ideal backhaul and a non-ideal backhaul. And when the backhaul is not ideal, the ACK/NACK and the CSI report are respectively fed back to each TRP. It is generally applicable to multi-downlink control information (Downlink Control Information, DCI) scheduling, i.e. each TRP transmits a respective physical downlink control channel (Physical downlink control channel, PDCCH), each PDCCH schedules a respective physical downlink shared channel (Physical downlink SHARED CHANNEL, PDSCH), and multiple sets of control resources (Control resource set, CORESET) configured for a UE are associated to different RRC parameters corresponding to different TRPs. The multiple PDSCH scheduled by multiple DCI may be non-overlapping, partially overlapping, fully overlapping on time-frequency resources. On the overlapping time-frequency resources, each TRP is independently precoded according to a respective channel, and the UE receives the multi-layer data streams belonging to multiple PDSCH in a Non-coherent joint transmission (Non-Coherent Joint Transmission, NCJT) manner.
When the backhaul is ideal, the scheduling information and the feedback information of the UE can be interacted in real time between the multiple TRPs, and besides the multiple PDSCH can be scheduled by the multiple DCI, the PDSCH can be scheduled by the single DCI, which comprises the following transmission schemes:
Space division multiplexing (Space Division Multiplexing, SDM): NCJT transmissions from different TRPs for different data layers of the same Transport Block (TB);
Frequency division multiplexing (Frequency Division Multiplexing, FDM): different frequency domain resources mapped by the same redundancy version (Redundancy Version, RV) of the same TB are mapped to different frequency domain resources and are derived from different TRPs, or different RVs of the same TB are mapped to different frequency domain resources;
Time division multiplexing (Time Division Multiplexing, TDM): multiple repetitions of different RVs of the same TB come from different TRPs, e.g. repetitions within one slot, or repetitions of multiple slots.
At this time, the ACK/NACK feedback and CSI report may be fed back to any one TRP.
And II: CSI framework of multiple TRP.
The CSI configuration resource framework in the multi-TRP scenario is as follows:
CSI reports of multiple TRPs in one CSI reporting configuration (CSI report setting) require the UE to measure CSI-RSs (CSI REFERENCE SIGNAL, CSI reference signals) from different TRPs, thus containing S >1 CSI measurement resource sets (CSI resource sets) in the CSI resource configuration (CSI resource setting) associated with one CSI report setting, each CSI resource set corresponding to a different TRP, with a different Quasi co-location (QCL).
3. UCI mapping.
(1) And (5) beam reporting.
If the group-based beam reporting (group Based Beam Reporting) field is configured and the reporting number (report quality) field is configured as "cri-rsrp" or "cri-sinr" or "ssbri-rsrp" or "ssbri-sinr" in the higher-layer parameter CSI reporting configuration (CSI Report Config), then the current CSI report is indicated as a beam report. And when the "group Based Beam Reporting" domain is "enabled", the UE can only report a pair of beams: two channel measurement resource (Channel Measurement Resource, CMR) identities and their corresponding L1-RSRP (Layer 1Reference Signal Received Power )/L1-SINR (Signal to Interference plus Noise Ratio, signal-to-interference plus noise ratio) values are included. Wherein the CMR identification includes: CSI reference signal resource indicator (CSI-RS Resource Indicator, CRI), SSB resource indicator (SS/PBCH Block Resource Indicator, SSBRI).
When the "group Based Beam Reporting" field is "disabled", the UE may report CMR identities corresponding to the 4 beams and L1-RSRP corresponding to the CMR identities. And when the number of the reported beams is larger than 1, carrying out differential reporting on the rest L1-RSRP/L1-SINR values except the maximum value of the L1-RSRP/L1-SINR.
Wherein CRI or SSBRI in beam reporting in MTRP scenarios is determined according to the number of reference signals (REFERENCE SIGNAL, RS) in its associated CSI measurement resource set.
(2) UCI mapping of beam reports.
CSI reporting can be divided into two parts: a first part (part 1) and a second part (part 2). Wherein Part 1 is of fixed size and configurable by the network measurement device via radio resource control (Radio Resource Control, RRC); part 2 is variable in length, and the terminal can determine information to be reported and transmitted according to the size of uplink available resources.
The beam reporting method provided by the embodiment of the application is described in detail below by means of some embodiments and application scenarios thereof with reference to the accompanying drawings.
As shown in fig. 2, an embodiment of the present application provides a beam reporting method, including:
Step 201, the terminal feeds back a channel state information CSI report containing relevant information of N pairs of beams to the network side device according to a preset rule;
Wherein the CSI report includes: the first part comprises relevant information of N1 pairs of beams in the N pairs of beams, N1 is smaller than or equal to N, and N1 and N are positive integers; in the case where N1 is smaller than N, the second portion includes information about N2 pairs of beams of the N pairs of beams, and a sum of N1 and N2 is equal to N.
In this embodiment, the preset rule may include a mapping rule of relevant information of N pairs of beams in the CSI report, and may further include a priority rule and a discard rule when relevant information content of the beams is discarded when the CSI report is mapped to relevant information of all beams that are transmitted on an available uplink resource and that cannot be carried by the available uplink resource. The N pairs of beams are beams that can be simultaneously received by the terminal, where N is a positive integer, e.g., n=2, 4, etc. The value of N may be configured by the network side device through RRC.
When reporting the relevant information of the N pairs of beams, the terminal maps the relevant information of the N pairs of beams on a CSI report, and feeds back the CSI report to network side equipment through a target available uplink resource, so as to realize multi-TRP beam information reporting. Specifically, the CSI report includes a first portion (i.e., part 1) and a second portion (i.e., part 2), and the relevant information of the N pairs of beams may be all mapped to Part1; or Part mapped to Part1 and the rest mapped to Part2, i.e.: the related information of the N1 pair of beams is placed in Part1, the related information of the N2 pair of beams is placed in Part2, and N1+N2=N, and due to the fact that the size of Part2 is variable, UCI load is avoided being larger when the related information of a plurality of pairs of beams is reported at the same time, and UCI fixed bit overhead can be reduced. The mapping distribution of the specific beam related information can be determined according to the configuration of the network side equipment or the terminal itself according to a predetermined rule.
Wherein the target available Uplink resource includes a Physical Uplink control channel (Physical Uplink Control Channel, PUCCH) or a Physical Uplink control channel (Physical Uplink SHARED CHANNEL, PUSCH).
When the uplink resources are insufficient or the available uplink resources have resource conflict with other resource scheduling, namely the available uplink resources cannot bear all the reported information, the reported information content can be discarded according to a preset rule.
In this embodiment, the CSI report including the relevant information of the N pairs of beams is divided into two parts, where the first part includes the channel measurement resource indication and/or the layer 1 measurement value of the N1 pairs of beams, and may further include the arrangement order of the N1 pairs of beams and the correspondence between the channel measurement resource indication and the channel measurement resource set; the second part contains the related information of N2 pairs of beams, and the arrangement sequence of the N2 pairs of beams and the corresponding relation between the channel measurement resource indication and the channel measurement resource set. After determining the CSI report, mapping the CSI report to a target available resource according to a priority rule, and sending the CSI report to network side equipment.
According to the embodiment of the application, when the terminal reports the beam related information, the N pairs of beam related information can be placed in the CSI report according to the preset rule and reported, so that flexible configuration of reporting the beam related information is realized, fixed bit overhead of UCI carrying the beam related information can be reduced, reliable reporting of the beam related information is ensured, and the situation that the beam information with high priority is lost due to larger UCI fixed load is effectively avoided.
Wherein, the related information of the N1 pairs of beams in the N pairs of beams is placed in Part1 of the CSI report, where the value of N1 may be configured by the network side device through radio resource control RRC; or the value of N1 is determined by the terminal according to a first rule. The first rule can be configured for network side equipment or can be customized for a terminal.
Specifically, the first rule includes at least one of:
1) The information about the beam pair with the highest layer 1 measurement value is located in the first part; that is, the first rule indicates that the related information of the beam pair with the highest measurement value of layer 1 is located in Part1, that is, n1=1, and when the terminal maps the related information of the pair with the highest measurement value of layer 1 to Part 1and N is greater than N1, the related information of the other beam pairs is located in Part2.
2) The value of N1 is determined according to the proportion of N1 in N. The proportion of N1 in N may be configured by the network side device, for example: 1:4, 1:2, etc. The proportion of N1 in N can be configured into one or more, and when the proportion is included, the terminal can select one proportion according to the measurement condition to determine the value of N1.
3) The value of N1 is determined from the layer 1 measurement and the first threshold. The first threshold may be configured for a network side device, where the first threshold is a threshold of a measured value, and the terminal may compare a layer 1 measured value of each beam with the first threshold, for example, place related information of a beam pair greater than the first threshold in Part1, so as to determine a value of N1.
Wherein the terminal may report the value of N1, and optionally, the first portion further includes: a value of N1. In particular, the first portion may comprise the value of N1 in case the first rule is predefined for a terminal.
In this embodiment, in order to ensure that the mapping rule understanding of the relevant information of the beam by the network side device and the terminal is consistent, when the first rule is predefined by the terminal, the value of N1 may be set in Part1; or in case the first rule is predefined for a terminal and is not negotiated with a network side device (i.e. the network side device is not aware of the first rule), placing the value of N1 in the Part1; if the first rule is predefined for the terminal and is negotiated with the network side device or notified to the network side device to determine the specific rule of the value of N1, the value of N1 may not be mapped in the Part1; if the first rule is configured for the network side device, the value of N1 may not be mapped in the Part 1.
For example: the network side equipment configures for the terminal: locating information about the beam pair with the highest layer 1 measurement value in the first part; or configuring the proportion of the N1 in the N for the terminal, and configuring only one proportion value, wherein under the above conditions, the terminal and the network side equipment can know the specific rule for determining the value of the N1, and the value of the N1 does not need to be reported.
For example: the terminal self-defines that the related information of the beam pair with the highest layer 1 measured value is positioned in the first part; or the terminal self-defines the proportion of N1 in N, or the network side equipment configures a plurality of proportions for the terminal, but the terminal self-selects one proportion according to the measurement condition to determine the value of N1; or the network side equipment configures a first threshold value, and the terminal determines the value of N1 according to the first threshold value by itself; in the above cases, if the network side device cannot directly determine the value of N1 according to the preset rule, the terminal may report the value of N1 on Part 1.
The terminal can judge whether the value of N1 needs to be reported based on the above conditions, and when the value of N1 needs to be reported, the terminal can be indicated by adding an indication field in Part 1. Specifically, the first portion includes a first indication field indicating the value of N1. In this embodiment, a first indication field for indicating the value of N1 may be added to the first portion, where the length of the first indication field may be log 2 N bits.
Optionally, the terminal may further indicate, in the first portion, a manner of determining the value of N1. Specifically, the first portion includes a second indication field that indicates a manner of determining the value of N1; or a first indication field in the first portion for indicating the value of N1, indicating the manner in which the value of N1 is determined. Optionally, the terminal may directly indicate the determination manner of the value of N1 through the first portion, and may further implicitly indicate the determination manner of the value of N1 by using an indication field, for example: the second indication domain or the first indication domain is "0", which indicates that the value of N1 is configured by the network side device through RRC, and the second indication domain or the first indication domain is "1", which indicates that the value of N1 is determined by the terminal according to the first rule.
In this embodiment, the terminal may report the determination manner of the value of N1 through the first portion. Specifically, a second indication field for indicating the determination manner of the value of N1 may be newly added to Part1, or a first indication field for indicating the value of N1 may be multiplexed.
When the terminal reports the relevant information of N pairs of beams, the relevant information of the beams comprises at least one of channel measurement resource indication and layer 1 measurement values. The channel measurement resource indication may include: CRI or SSBRI; the layer 1 measurement may include: L1-RSRP or L1-SINR.
The manner in which the terminal reports the channel measurement resource indication and the layer 1 measurement value is described below by way of specific embodiments.
As an alternative embodiment, for Part1, the relevant information of N1 pairs of beams, including N pairs of beams, is as follows: the Part1 includes an indication of channel measurement resources for the N1 pair beam and/or a layer 1 measurement for the N1 pair beam. The first portion is further configured to indicate a first correspondence between channel measurement resource indications and a set of channel measurement resources for the N1 pair of beams; wherein the channel measurement resource indications of the N1 pairs of beams are arranged according to a second rule. In this embodiment, the channel measurement resource indications of each of the N1 pairs of beams correspond to different sets of channel measurement resources, respectively.
The indication manner of the first correspondence in the first portion and the second rule of the channel measurement resource indication arrangement may include, but are not limited to, the following:
Mode one:
The first portion indicating a first correspondence between channel measurement resource indications and channel measurement resource sets of the N1 pair beams may include:
And respectively adding a first bit (log 2 M) in an indication field of each channel measurement resource indication of the first part, wherein the first bit is used for indicating the corresponding relation between the channel measurement resource indication and a channel measurement resource set. I.e. an extended channel measurement resource indication field, for indicating said first correspondence.
Wherein the second rule includes: the first channel measurement resource indication is arranged at the first position of all channel measurement resource indications, and the first channel measurement resource indication is the index of the channel measurement resource with the highest layer 1 measurement value in the channel measurement resource set to which the first channel measurement resource indication belongs. The value of M may be the number of channel measurement resource sets configured by the network side device, one channel measurement resource set corresponding to one TRP.
For example: the channel measurement resource is indicated as CRI or SSBRI, and the domain is indicated by extending CRI/SSBRI to indicate the first correspondence.
Assuming that the number of reported beam pairs configured by the network side device is n=2, and when the UE determines that the number of beam pairs reported in part 1 is n1=2 according to the measurement result, that is, all relevant information of N pairs of beams is placed in part 1 for transmission, a structure diagram of CSI report including relevant information of beams is shown in fig. 3a and fig. 3 b. If the value of N1 is configured by RRC or determined by a preset rule and the network side device knows the value of N1, it is not necessary to report it, i.e. the N1 part in fig. 3a is ignored.
As shown in fig. 3a and 3b, the number of channel measurement resource sets (CMR sets) is 2, that is, the number of TRP is 2, and by extending CRI/SSBRI to indicate the domain (CRI is taken as an example in fig. 3a and 3 b), adding 1 bit indicates the CMR set corresponding to CRI/SSBRI, for example, "0" indicates CMR set #0, that is, TRP #0, and "1" indicates CMR set #1, that is, TRP #1. For CRI arranged at the first position, the CRI #1 with the largest layer 1 measured value is arranged at the first position according to the size of the corresponding layer 1 measured value, and the rest CRI are arranged according to the preset beam pairing assumption. For example, fig. 3a illustrates the pairing in the front-back direction according to the arrangement order, namely (cri#1, cri#2) is a beam pair that can be received by the UE, denoted as beam pair 1 (i.e., beam pair#1), (cri#3, cri#4) is another beam pair, denoted as beam pair 2 (beam pair#2); fig. 3b is a graph of CRI grouped in TRP, with co-located CRI in both groups being a beam pair that can be received simultaneously by the UE, such as (cri#1, cri#3), (cri#2, cri#4). SSBRI are arranged in the same manner as CRI and are not described in detail herein.
Optionally, for the value and ordering of the layer 1 measurement values, the other measurement values except the largest layer 1 measurement value (i.e. the first layer 1 measurement value) are reported as a result of the difference (Differential) with the largest layer 1 measurement value, and the order of the layer 1 measurement values corresponds to the CRI/SSBRI order. The layer 1 measurement in fig. 3a and 3b is L1-RSRP, rsrp#1 is the maximum layer 1 measurement, rsrp#2 is mapped after difference with rsrp#1 (i.e. DIFFERENTIAL RSRP #2), rsrp#3, rsrp#4 are similar. The L1-SINR is the same as above, and will not be described here.
Mode two:
The first portion indicating a first correspondence between channel measurement resource indications and channel measurement resource sets of the N1 pair beams may include:
adding a third indication field to the first portion, the third indication field being used for indicating: the first channel measurement resources indicate a corresponding first set of channel measurement resources.
Wherein the second rule includes: the first channel measurement resource indication is arranged at the first position of all channel measurement resource indications, and other channel measurement resource indications except the first channel measurement resource indication are arranged according to a third rule; the first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value.
The third rule may include: the channel measurement resource indications associated with the same channel measurement resource set are used as a group and are continuously arranged by taking the channel measurement resource set as a unit. Namely: the channel measurement resource indicators are arranged by taking the channel measurement resource set as a unit, the channel measurement resource indicators associated with the same channel measurement resource set are taken as a group, and can be continuously arranged according to a preset rule of a network, and the channel measurement resource indicators corresponding to the channel measurement resource indicators at the same position in different groups can be simultaneously received by the UE.
The specific rule that the channel measurement resource indications associated with the same channel measurement resource set are arranged in series as a group may be: and sorting the channel measurement resource indications in the channel measurement resource set 1 from large to small according to the sum of the layer 1 measurement values or the beam pair measurement values in the measurement resource set 1, and sorting the channel measurement resource indications in the rest channel measurement resource sets according to the rule that the channel measurement resource indications corresponding to the channel measurement resource indications in the same position in different groups can be simultaneously received by the UE.
The third rule may be: all channel measurement resource indications are arranged according to beam pairs. I.e. the channel measurement resource indications are arranged in beam pairs. For example: the first channel measurement resource indication and the second channel measurement resource indication form a pair of beam pairs that can be received simultaneously by the UE; the third channel measurement resource indication and the fourth channel measurement resource indication form a pair of beam pairs which can be received by the UE at the same time, and the third channel measurement resource indication corresponds to the same channel measurement resource set as the first channel measurement resource indication, the fourth channel measurement resource indication corresponds to the same channel measurement resource set as the second channel measurement resource indication, and the like.
In this embodiment, a third indication field is newly added in the first portion to indicate a first channel measurement resource set corresponding to the first channel measurement resource indication, and according to the second rule and the third rule, all channel measurement resource indications and an arrangement sequence of the channel measurement resource sets may be determined, so as to determine a correspondence between each channel measurement resource indication and the channel measurement resource set.
For example: a field is added to indicate the first channel measurement resource set to which the first channel measurement resource indication belongs.
Assuming that the number of reported beam pairs configured by the network side device n=2, and the UE determines, according to the measurement result, that the number of reported beam pairs n1=2 in part 1, that is, the relevant information of the beam is all placed in part 1 for transmission, a schematic structure diagram of the CSI report including the relevant information of the beam may be shown in fig. 4 a. If the value of N1 is configured by RRC or determined by a preset rule and the network side device knows the value of N1, it is not necessary to report the value of N1, i.e. the portion N1 in fig. 4a and fig. 4b is ignored. This embodiment describes the arrangement order of channel measurement resource indications in the following two cases.
(1) The beam pairs are arranged in units.
As shown in fig. 4a, the terminal places channel measurement resource indication information of a first beam pair including the first channel measurement resource indication in front of the remaining channel measurement resource indications, and arranges CRI in a predefined rule of the network inside the first beam pair, such as arranging the first channel measurement resource (cri#1) at the head of the channel measurement resource indication information of the first beam pair (beam pair#1). The correspondence of CRI in the first beam pair to the set of channel measurement resources is indicated by the newly added indication field. For example, when the number of channel measurement resource sets (CMR sets) is 2, the new indication field only needs 1 bit to indicate the correspondence between CRI and CMR sets in the first beam pair, and when the indication field is 0, cri#1, which is the first CRI in the first beam pair, corresponds to CMR set#0, and cri#2 corresponds to CMR set#1; the opposite applies when the indication field is 1, i.e. the CRI in the first beam pair, i.e. CRI #2, corresponds to CMR set #1. The correspondence between CRI and CSI measurement resource set in the remaining beam pairs is consistent with the correspondence in the first beam pair, that is, cri#3 and cri#1 correspond to the same CMR set, and cri#4 and cri#2 correspond to another CMR set. SSBRI are consistent with CRI ordering. The values and ordering of the layer 1 measurements are the same as in fig. 3a and 3b in the above-described mode one.
(2) And arranging by taking the channel measurement resource set as a unit.
As shown in fig. 4b, the terminal groups the reported related information of the beams by taking the channel measurement resource set as a unit, and CRI in the same position in the group can be simultaneously received by the terminal, such as (cri#1, cri#3), (cri#2, cri#4). For the ranking order, the terminal places measurement resource indication information (e.g., cri#1, cri#2) of the CMR set containing the first channel measurement resource indication before resource indication information (e.g., cri#3, cri#4) of the remaining channel measurement resource sets. And within the first set of channel measurement resources, the terminal ranks CRI in order according to a predefined rule of the network, such as ranking the first channel measurement resource indication (cri#1) at the beginning of the channel measurement resource indication of the first set of channel measurement resources. And the identity of the first set of channel measurement resources is indicated by the newly added indication field. For example, when the number of the channel measurement resource sets is 2, the newly added domain only needs 1 bit to indicate the identification of the first channel measurement resource set, and when the indicated domain is 0, the first channel measurement resource set is indicated to correspond to CMR set#0, that is, all CRIs in the first channel measurement resource set all correspond to CMR set#0; while the other CRI all correspond to CMR set #1. The above is reversed when the indication field is 1. SSBRI are consistent with the alignment sequence of CRI. The values and the sequences of the layer 1 measurement values are the same as those of the first mode, and are not repeated herein.
Mode three:
The first portion indicating a first correspondence between channel measurement resource indications and channel measurement resource sets of the N1 pair beams may include:
Adding a fourth indication field to the first portion, the fourth indication field being used for indicating: the first channel measures the location of the resource indication;
Wherein the second rule includes: taking the channel measurement resource indications associated with the same channel measurement resource set as a group, continuously arranging the channel measurement resource sets as units, arranging the first channel measurement resource indications at the first position of the channel measurement resource set corresponding to the first channel measurement resource indications, and arranging the channel measurement resource indications of different groups according to a preset sequence; the first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value.
In this embodiment, a fourth indication field is added in Part1 to indicate the position indicated by the first channel measurement resource with the highest measurement value of layer 1. According to the channel measurement resource sets associated with the channel measurement resource indications, the channel measurement resource indications associated with the same channel measurement resource set are used as a group to be continuously arranged, and the first channel measurement resource indication is arranged before the rest channel measurement resource indications in the corresponding channel measurement resource sets. The channel measurement resource indications of different groups are arranged according to a predetermined sequence, and the channel measurement resource indications of the same position in different groups can be received by the UE at the same time.
The specific rule that the channel measurement resource indicators associated with the same channel measurement resource set are arranged in series is as the second mode, and will not be described herein.
For example: assuming that two channel measurement resource sets are provided, reporting relevant information of 4 pairs of beams, namely, each set comprises 4 channel measurement resource indications. Taking the channel measurement resource indication as CRI as an example, the predetermined arrangement order of CRI of different groups is as follows: the 4 CRI of the channel measurement resource set 1 are arranged in the front, and the 4 CRI of the channel measurement resource set 2 are arranged in the rear.
In this case, the fourth indication field only needs 1 bit to indicate the location indicated by the first channel measurement resource. If the indication field is 0, it may indicate that the first channel measurement resource indication is in the first bit of the channel measurement resource set 1, that is, the first bit of all channel measurement resource indications; if the indication field is 1, it may indicate that the first channel measurement resource indication is in the first bit of the channel measurement resource set 2, i.e. the 5 th bit of all channel measurement resource indications. The channel measurement resource indications in the rest of the channel measurement resource sets may be ordered according to a rule that channel measurement resource indications corresponding to the channel measurement resource indications in the same position in different groups can be received by the UE at the same time.
Mode four:
The first portion indicating a first correspondence between channel measurement resource indications and channel measurement resource sets of the N1 pair beams may include: indicating an arrangement position in a beam pair through the channel measurement resource indication, and indicating a channel measurement resource set corresponding to the channel measurement resource indication;
wherein the second rule includes: the channel measurement resource indications are arranged according to beam pairs, the first beam pair is arranged in the first position, and the channel measurement resource indications in each beam pair are arranged according to a fourth rule. The first beam pair is a beam pair comprising a first channel measurement resource indication, which is an index of the channel measurement resource with the highest layer 1 measurement value.
The fourth rule may include: the channel measurement resource indications associated with the same set of channel measurement resources are located at the same location for different beam pairs.
In this embodiment, all the channel measurement resource indicators to be reported are arranged in the form of beam pairs, and the first beam pair is arranged in the first position, and the channel measurement resource indicators in each beam pair may be arranged according to a fourth rule, for example, the channel measurement resource indicators in the same position in each beam pair correspond to the same channel measurement resource set. Wherein, the first beam pair is arranged at the first position, and the arrangement sequence of the rest beam pairs except the first beam pair can be determined according to network predefining, for example: the largest layer 1 measurement or the sum of layer 1 measurements in each beam pair may be arranged sequentially back in order from the largest to the smallest.
Optionally, the method further comprises: adding a fifth indication field to the first portion, the fifth indication field being used for indicating: the first channel measurement resource indicates a location in the first beam pair. In this embodiment, a fifth indication field may be added at Part1, for indicating that the first channel measurement resource indicates a position in the first beam pair.
For example: the new field indicates the location of the first channel measurement resource indication in the beam pair to which it belongs.
When the number of reported beam pairs configured by the network side device n=2 and the UE determines, according to the measurement result, the number of beam pairs reported in part 1 n1=2, that is, all relevant information of the beams is placed in part 1 for transmission, a schematic structure diagram of CSI report including relevant information of the beams may be shown in fig. 5a and fig. 5 b. If the value of N1 is configured by RRC or determined by a preset rule and the network side device knows the value of N1, it is not required to report the value of N1, i.e. the portion N1 in fig. 5a is ignored.
As shown in fig. 5a and 5b, all CRIs are reported in the form of beam pairs, and the ordering of CRIs in each beam pair and the correspondence with the CMR set are performed according to a network preset rule. CRI (cri#1, cri#3) as associated with CMR set#0 are both at the first position of the beam pair CRI sequence, and CRI (cri#2, cri#4) associated with CMR set#1 are both at the second position of the beam pair CRI sequence. In the beam pair arrangement, the terminal arranges information (CRI) of a first beam pair including the first channel measurement resource indication at the head of all beam pair information. Since the network side device can acquire other layer 1 measurement values only after learning the maximum layer 1 measurement value, the terminal needs to inform the network side device of CRI corresponding to the maximum layer 1 measurement value. Therefore, the network side device can be informed of the position of the first channel measurement resource indication in the first beam pair through the newly added indication domain, so that the maximum layer 1 measurement value is obtained. As shown in fig. 5a, when the newly added Indication field Indication (Indication) is "0", the first channel measurement resource Indication is cri#1, and the maximum layer 1 measurement value is rsrp#1; as shown in fig. 5b, when the newly added Indication field Indication (Indication) is "1", the first channel measurement resource Indication is cri#2 and the maximum layer 1 measurement value is rsrp#2.SSBRI are consistent with CRI ordering. The values and the sequences of the layer 1 measurement values are the same as those of the first mode, and are not repeated herein.
The above embodiments all use N pairs of related information of the beam to report in Part1, and the following describes, by a specific embodiment, a implementation process in which N1 pairs of related information of the beam are reported in Part1 and N2 pairs of related information of the beam are reported in Part 2.
Let n=3, n1=2, n2=1, i.e. the relevant information of 2 pairs of beams is reported in Part 1 and the relevant information of another pair of beams is reported in Part 2. If the value of N1 is configured by RRC or determined by a preset rule and the network side device knows the value of N1, it is not necessary to report the value of N1, i.e. the portion N1 in fig. 6a and 6b is ignored.
As shown in fig. 6a and 6b, all CRIs are reported in Part1 and Part 2 in the form of beam pairs, and the ordering of CRIs in each beam pair and their correspondence to the CMR set are performed according to a network preset rule. CRI (cri#1, cri#3, cri#5) as associated with CMR set#0 are all at the first position of the beam centering CRI sequence, and CRI (cri#2, cri#4, cri#6) associated with CMR set#1 are all at the second position of the beam centering CRI sequence. In the beam pair arrangement of Part1, the terminal arranges information (CRI) of a first beam pair including the first channel measurement resource indication at the head of all beam pair information. Since the network side device can acquire other layer 1 measurement values only after learning the maximum layer 1 measurement value, the terminal needs to inform the network side device of CRI corresponding to the maximum layer 1 measurement value. Therefore, the network side can be informed of the position of the first channel measurement resource indication in the first beam pair through the newly added indication field in Part1, so as to acquire the maximum layer 1 measurement value. As shown in fig. 6a, when the newly added Indication field Indication (Indication) is 0", the first channel measurement resource Indication is cri#1, and the maximum layer 1 measurement value is rsrp#1; as shown in fig. 6b, when the newly added indication field is "1", the first channel measurement resource is indicated as cri#2, and the maximum measurement value is rsrp#2.SSBRI are consistent with CRI ordering. The values and the sequences of the layer 1 measured values in Part1 are the same as those in the first mode, and are not repeated here. The CRI arrangement in Part 2 is consistent with Part1, and the layer 1 measurements are reported as differential values from the largest layer 1 measurement.
As another alternative embodiment, for Part1, the relevant information of N1 pairs of beams, including N pairs of beams, is specifically: the first portion includes layer 1 measurements of the N1 pair of beams.
Specifically, the mapping of the N1-to-beam layer 1 measurement value at the first portion may include one of the following:
Mode one: quantizing a first layer 1 measurement value corresponding to the first channel measurement resource indication and then placing the quantized first layer 1 measurement value in the first part; and the layer 1 measured values corresponding to the channel measurement resource indications except the first channel measurement resource indication are differentially quantized with the first layer 1 measured values and then are placed in the first part. Namely: and the first channel measurement resource indication is mapped to Part1 after corresponding first layer 1 measurement values are directly quantized, and the other layer 1 measurement values are mapped to Part1 after difference with the first layer 1 measurement values. The specific arrangement sequence of the layer 1 measurement values corresponding to the respective channel measurement resource indications may correspond to the arrangement sequence of the channel measurement resource indications to which the respective channel measurement resource indications belong.
Mode two: quantizing and then placing all layer 1 measurements in a first beam pair containing a first channel measurement resource indication in the first portion; the layer 1 measured values of other beam pairs except the first beam pair are differentially quantized with the layer 1 measured values corresponding to the target channel measurement resource indication in the first beam pair and then are placed in the first part; the target channel measurement resource indication is: and associating channel measurement resource indications of the same channel measurement resource set with the channel measurement resource indications of the other beam pairs. Namely: all layer 1 measurement values in the first beam pair containing the first channel measurement resource indication are quantized and mapped to Part1, and layer 1 measurement values of other beam pairs except the first beam pair are quantized and mapped to Part1 after being differentiated from layer 1 measurement values of the same channel measurement resource set associated with the first beam pair.
Mode three: determining a second layer 1 measurement value in every n beam pairs according to a first predefined rule, and quantifying the second layer 1 measurement value and then placing the quantified second layer 1 measurement value in the first part; and the other layer 1 measured values except the second layer 1 measured value in the N beam pairs are subjected to differential quantization with the second layer 1 measured value and then are placed in the first part, and N1> N is more than or equal to 1. The first predefined rule is, for example: the largest layer 1 measurement in each 2 pairs of beams is determined as the second layer 1 measurement, for example: and reporting the related information of 4 pairs of beams, wherein one second layer 1 measured value (which can be the largest measured value) is determined in each 2 pairs of beams, the second layer 1 measured value is quantized and then directly mapped to Part1, and the rest layer 1 measured values can be quantized and mapped to Part1 after being differentiated from the second layer 1 measured value. Alternatively, the second layer 1 measurement value may indicate a corresponding first layer 1 measurement value, i.e. a measurement value maximum, for the first channel measurement resource.
Mode four: determining third layer 1 measurement values in every n beam pairs according to a second predefined rule, differentially quantizing the third layer 1 measurement values and first layer 1 measurement values corresponding to the first channel measurement resource indication, and then placing the third layer 1 measurement values in the first part; and the other layer 1 measured values except the third layer 1 measured value in the N beam pairs are subjected to differential quantization with the third layer 1 measured value and then are placed in the first part, and N1> N is more than or equal to 1. The second predefined rule is, for example: layer 1 measurements in each 2 pairs of beams are determined as the third layer 1 measurement from layer 1 measurements arranged in the second bit from large to small, for example: reporting the related information of 4 pairs of wave beam pairs, wherein a third layer 1 measured value is determined in each 2 pairs of wave beams, the third layer 1 measured value is quantized and mapped to Part1 after being differentiated from a first layer 1 measured value corresponding to the first channel measured resource indication, and the rest layer 1 measured values can be quantized and mapped to Part1 after being differentiated from the third layer 1 measured values. Alternatively, the third layer 1 measurement may be the same as the second layer 1 measurement or may be different. The third layer 1 measurement is smaller than the first layer 1 measurement, for example: the third layer 1 measurement may be a layer 1 measurement in which the measurement is arranged from large to small as the second.
It should be noted that, in the above several manners, the first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value; the arrangement order of the layer 1 measurement values in the first part corresponds to the arrangement order of the channel measurement resource indications to which the layer 1 measurement values belong.
The above embodiment describes the mapping manner of the related information of the N1 pair beam at Part1, and in the case where N1 is smaller than N, the related information of the N2 pair beam except the N1 pair beam is mapped at Part2, which is described below by a specific embodiment.
As an alternative embodiment, the second part may include information about the N2 pair of beams, such as an indication of channel measurement resources for the N2 pair of beams, and/or layer 1 measurements for the N2 pair of beams. The second part is further configured to indicate a second correspondence between channel measurement resource indications and a channel measurement resource set of the N2 pair beam;
The indication mode of the second corresponding relation in the second part can be the same as the indication mode of the first corresponding relation in the first part; the first corresponding relation is as follows: the channel measurement resource indication of the N1 pair beam corresponds to the channel measurement resource set.
In this embodiment, the indication manner of the second correspondence at Part2 is the same as the indication manner of the first correspondence at Part 1. For example: expanding a measurement resource indication field of Part2, which is used for indicating the second corresponding relation; or adding a channel measurement resource set corresponding to the channel measurement resource indication with the highest measured value of the indication domain indication layer 1 in Part 2; or adding a position of channel resource measurement indication with the highest measured value of the indication domain indication layer 1 in Part 2; or indicating the arrangement position of the channel measurement resource indication in the beam pair, and indicating the channel measurement resource set corresponding to the channel measurement resource indication. The arrangement rule and the mapping manner of each channel measurement resource indication and the channel measurement resource set are the same as those of the mapping of the first corresponding relation in the Part1, and are not described in detail herein.
As an alternative embodiment, the information related to the second portion including the N2 pair beam may be: the second portion includes layer 1 measurements of the N2 pair beams;
wherein the mapping manner of the layer 1 measurement value of the N2 pair beam in the second portion may include one of the following:
(1) The mapping manner of the layer 1 measurement value of the N2 pair beam in the second portion is the same as the mapping manner of the layer 1 measurement value of the N1 pair beam in the first portion. That is, the mapping manner of the layer 1 measurement value of the N2 beam in Part2 is the same as the mapping manner of the layer 1 measurement value of the N1 beam in Part1, and will not be described herein.
(2) And determining a fourth layer 1 measured value in the N2 pairs of beams according to a third predefined rule, wherein the fourth layer 1 measured value is quantized and then placed in the second part, and the rest layer 1 measured values except the fourth layer 1 measured value in the N2 pairs of beams are differentially quantized and then placed in the second part. The fourth layer 1 measurement may be the layer 1 measurement with the highest measurement. The third predefined rule is, for example: the layer 1 measurement for which the measurement in the N2 pair beam is greatest is determined to be the fourth layer 1 measurement.
(3) According to a fourth predefined rule, a fifth layer 1 measurement value is determined in the N2 pair of beams, the fifth layer 1 measurement value is differentially quantized with a first layer 1 measurement value corresponding to the first channel resource indication in the first portion and then placed in the second portion, and the rest layer 1 measurement values except for the fifth layer 1 measurement value in the N2 pair of beams are differentially quantized with the fifth layer 1 measurement value and then placed in the second portion. The fourth predefined rule is, for example: and the fifth layer 1 measured value is smaller than the first layer 1 measured value, the first layer 1 measured value is the layer 1 measured value with the largest measured value, the fifth layer 1 measured value can be the layer 1 measured value with the second measured value arranged from big to small, the fifth layer 1 measured value and the first layer 1 measured value are quantitatively mapped in Part2 after being differentiated, and the rest layer 1 measured values and the fifth layer 1 measured value are quantitatively mapped in Part2 after being differentiated.
Optionally, when the terminal sends the CSI report containing the relevant information of the N pairs of beams to the network side device according to the preset rule, the information in the CSI report may be placed on the target available uplink resource according to the priority rule and the discard rule, and sent to the network side device. I.e. the preset rules comprise the priority rules and the discard rules.
In this embodiment, after the terminal generates the CSI report according to the related information of the N pairs of beams, when the target available uplink resource carrying the CSI report cannot carry all the information of the target Part in the CSI report, part of the information content is discarded according to the priority rule and the corresponding discarding rule, so as to determine the content of the CSI report that is actually reported. Specifically, the priority rule includes at least one of:
1) The priority of the beam-related information within the beam pair is determined according to the rank of the layer 1 measurement values, wherein the higher priority of the beam-related information of the layer 1 measurement values is higher. The priorities of the beam pairs of the internal beam related information may be ranked from high to low according to the layer 1 measurement value, and the priorities of the layer 1 measurement value related information are high.
2) The priority of the related information of the beam pairs contained in the first part and the priority of the related information of the beam pairs contained in the second part are respectively determined according to the arrangement of the layer 1 measured values, wherein the priority of the related information of the beam pairs with high layer 1 measured values is high. Namely: the priorities of the related information of the beam pairs in Part1 and Part1 are arranged in the order from high to low of the layer 1 measurement values, and the measurement values are high in priority.
3) The first portion includes beams having a higher priority than the beams of the second portion.
4) Priority among related information of beams contained in a first part of the different CSI reports is determined according to a fifth predefined rule; the fifth predefined rule is, for example: and a priority calculation formula configured by the network side equipment.
5) The priority among the related information of the beams contained in the second part of the different CSI reports is determined according to a sixth predefined rule. The sixth predefined rule is, for example: the network side equipment configures a priority calculation formula.
Optionally, the discarding rule may include one of:
a) Discarding relevant information of all beams contained in the target portion;
b) Discarding the related information of the beam pairs with low priority in the unit of beam pairs according to the priority of the beam pairs in the target portion;
c) Discarding the beam related information with low priority in the beam pairs according to the priorities of the beams contained in the beam pairs in the target part by using the beam units;
wherein the target portion comprises a first portion and/or a second portion.
Note that, in the case where the target portion includes the first portion, the discard rule further includes: and discarding the relevant information of all beams contained in the second part. Namely: if the information in Part1 needs to be discarded, then all the information of Part2 needs to be discarded as well.
It should be noted that, in the embodiment of the present application, the predefined rule may be configured for the network side device, or may be determined for the terminal according to the reporting requirement of the related information of the beam, where the embodiment is only illustrated by way of example, and may also be other predefined rule contents, which is not limited herein.
In this embodiment, the CSI report including the relevant information of the N pairs of beams is divided into two parts, where the first part includes the channel measurement resource indication and/or the layer 1 measurement value of the N1 pairs of beams, and may further include the arrangement order of the N1 pairs of beams and the correspondence between the channel measurement resource indication and the channel measurement resource set; the second part contains the related information of N2 pairs of beams, and the arrangement sequence of the N2 pairs of beams and the corresponding relation between the channel measurement resource indication and the channel measurement resource set. After determining the CSI report, mapping the CSI report to a target uplink available resource according to a priority rule, and sending the target uplink available resource to network side equipment. Various modes for reporting channel measurement resource indication and corresponding layer 1 measurement values, corresponding relation between the channel measurement resource indication and TRP (namely corresponding relation between the channel measurement resource indication and a channel measurement resource set) are designed, so that network side equipment can know the TRP corresponding to the reported beam related information according to the CSI report, and error scheduling of the network side equipment is avoided. The embodiment determines the priority and the discarding rule of the beam related information, can reduce UCI fixed bit overhead and improve the scheduling flexibility of the terminal.
According to the embodiment of the application, when the terminal reports the beam related information, N pairs of beam related information can be placed in the CSI report according to the preset rule and reported, so that flexible configuration of reporting the beam related information is realized, fixed bit overhead of UCI carrying the beam related information can be reduced, reliable reporting of the beam related information is ensured, and the situation that the beam information with high priority is lost due to larger UCI fixed load is effectively avoided.
It should be noted that, in the beam reporting method provided by the embodiment of the present application, the execution body may be a beam reporting device, or a control module in the beam reporting device for executing the beam reporting method. In the embodiment of the present application, a method for performing beam reporting by using a beam reporting device is taken as an example, and the beam reporting device provided by the embodiment of the present application is described.
As shown in fig. 7, an embodiment of the present application further provides a beam reporting device 700, including:
the information feedback module 710 is configured to feedback, according to a preset rule, a CSI report containing relevant information of N pairs of beams to the network side device;
Wherein the CSI report includes: the first part comprises relevant information of N1 pairs of beams in the N pairs of beams, N1 is smaller than or equal to N, and N1 and N are positive integers;
in the case where N1 is smaller than N, the second portion includes information about N2 pairs of beams of the N pairs of beams, and a sum of N1 and N2 is equal to N.
As an optional embodiment, the value of N1 is configured by the network side device through radio resource control RRC; or alternatively
And the value of N1 is determined by the terminal according to a first rule.
As an alternative embodiment, the first rule includes at least one of:
the information about the beam pair with the highest layer 1 measurement value is located in the first part;
Determining the value of N1 according to the proportion of N1 in N;
the value of N1 is determined from the layer 1 measurement and the first threshold.
As an alternative embodiment, the first part further comprises: a value of N1.
As an alternative embodiment, in case the first rule is predefined for a terminal, the first part comprises the value of N1.
As an alternative embodiment, the first portion comprises a first indication field indicating the value of N1.
As an alternative embodiment, the first portion indicates how the value of N1 is determined.
As an alternative embodiment, the first part comprises a second indication field indicating the manner in which the value of N1 is determined;
Or alternatively
A first indication field in the first portion for indicating a value of N1 indicates a manner of determining the value of N1.
As an alternative embodiment, the information about the beam includes at least one of a channel measurement resource indication and a layer 1 measurement value.
As an alternative embodiment, the apparatus further comprises:
a first indication module, configured to indicate, by the first portion, a first correspondence between channel measurement resource indications of the N1 pair of beams and a channel measurement resource set;
wherein the channel measurement resource indications of the N1 pairs of beams are arranged according to a second rule.
As an alternative embodiment, the first indication module includes:
A first indication unit, configured to add a third indication field to the first portion, where the third indication field is used to indicate: the first channel measurement resources indicate a corresponding first set of channel measurement resources,
Wherein the second rule includes: the first channel measurement resource indication is arranged at the first position of all channel measurement resource indications, and other channel measurement resource indications except the first channel measurement resource indication are arranged according to a third rule;
The first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value.
As an alternative embodiment, the third rule includes:
The channel measurement resource indications associated with the same channel measurement resource set are used as a group and are continuously arranged by taking the channel measurement resource set as a unit.
As an alternative embodiment, the first indication module includes:
a second indication unit, configured to add a fourth indication field to the first portion, where the fourth indication field is used to indicate: the first channel measures the location of the resource indication,
Wherein the second rule includes: taking the channel measurement resource indications associated with the same channel measurement resource set as a group, continuously arranging the channel measurement resource sets as units, arranging the first channel measurement resource indications at the first position of the channel measurement resource set corresponding to the first channel measurement resource indications, and arranging the channel measurement resource indications of different groups according to a preset sequence;
The first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value.
As an alternative embodiment, the first indication module includes:
A third indication unit, configured to indicate, by using the channel measurement resource indication, an arrangement position in a beam pair, and indicate a channel measurement resource set corresponding to the channel measurement resource indication;
Wherein the second rule includes: the channel measurement resource indications are arranged according to beam pairs, the first beam pair is arranged at the first position, and the channel measurement resource indications in each beam pair are arranged according to a fourth rule;
the first beam pair is a beam pair comprising a first channel measurement resource indication, which is an index of the channel measurement resource with the highest layer 1 measurement value.
As an alternative embodiment, the fourth rule includes:
The channel measurement resource indications associated with the same set of channel measurement resources are located at the same location for different beam pairs.
As an alternative embodiment, the apparatus further comprises:
a second indication module, configured to add a fifth indication field to the first portion, where the fifth indication field is used to indicate: the first channel measurement resource indicates a location in the first beam pair.
As an alternative embodiment, the first portion comprises layer 1 measurements of the N1 pair beams.
As an alternative embodiment, the mapping manner of the layer 1 measurement value of the N1 pair beam in the first portion includes one of the following:
Quantizing a first layer 1 measurement value corresponding to the first channel measurement resource indication and then placing the quantized first layer 1 measurement value in the first part; the layer 1 measured values corresponding to the channel measurement resource indications except the first channel measurement resource indication are subjected to differential quantization with the first layer 1 measured values and then are placed in the first part;
Quantizing and then placing all layer 1 measurements in a first beam pair containing a first channel measurement resource indication in the first portion; the layer 1 measured values of other beam pairs except the first beam pair are differentially quantized with the layer 1 measured values corresponding to the target channel measurement resource indication in the first beam pair and then are placed in the first part; the target channel measurement resource indication is: a channel measurement resource indication associated with the same set of channel measurement resources as the channel measurement resource indications in the other beam pairs;
Determining a second layer 1 measured value in every n beam pairs according to a first predefined rule, and mapping after quantifying the second layer 1 measured value; the other layer 1 measured values except the second layer 1 measured value in the N beam pairs are mapped after being differentially quantized with the second layer 1 measured value, and N1> N is more than or equal to 1;
Determining a third layer 1 measured value in every n beam pairs according to a second predefined rule, and mapping after differential quantization of the third layer 1 measured value and a first layer 1 measured value corresponding to the first channel measurement resource indication; and mapping after the difference quantization of the rest layer 1 measured values except the third layer 1 measured value and the third layer 1 measured value in the N beam pairs, wherein N1> N is more than or equal to 1.
As an alternative embodiment, the first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value;
The arrangement order of the layer 1 measurement values in the first part corresponds to the arrangement order of the channel measurement resource indications to which the layer 1 measurement values belong.
As an optional embodiment, the second portion indicates a second correspondence between channel measurement resource indications of the N2 pair beams and a set of channel measurement resources;
the indication mode of the second corresponding relation in the second part is the same as the indication mode of the first corresponding relation in the first part;
the first corresponding relation is as follows: the channel measurement resource indication of the N1 pair beam corresponds to the channel measurement resource set.
As an alternative embodiment, the second portion comprises layer 1 measurements of the N2 pair beam;
wherein the mapping manner of the layer 1 measurement value of the N2 pair beam in the second portion may include one of the following:
The mapping mode of the layer 1 measured value of the N2 pair beam in the second part is the same as the mapping mode of the layer 1 measured value of the N1 pair beam in the first part;
And determining a fourth layer 1 measured value in the N2 pairs of beams according to a third predefined rule, wherein the fourth layer 1 measured value is quantized and then placed in the second part, and the rest layer 1 measured values except the fourth layer 1 measured value in the N2 pairs of beams are differentially quantized and then placed in the second part.
According to a fourth predefined rule, a fifth layer 1 measurement value is determined in the N2 pair of beams, the fifth layer 1 measurement value is differentially quantized with a first layer 1 measurement value corresponding to the first channel resource indication in the first portion and then placed in the second portion, and the rest layer 1 measurement values except for the fifth layer 1 measurement value in the N2 pair of beams are differentially quantized with the fifth layer 1 measurement value and then placed in the second portion.
As an alternative embodiment, the information feedback module is configured to: and placing the information in the CSI report on the target available uplink resource according to the priority rule and the discarding rule, and sending the information to the network side equipment.
As an alternative embodiment, the priority rule includes at least one of:
The priority of the related information of the beams in the beam pair is determined according to the sequence of the layer 1 measured values, wherein the priority of the related information of the beams with high layer 1 measured values is high;
the priority of the related information of the beam pairs contained in the first part and the priority of the related information of the beam pairs contained in the second part are respectively determined according to the arrangement of the layer 1 measured values, wherein the priority of the related information of the beam pairs with high layer 1 measured values is high;
The first portion includes a higher priority of information related to the beam than the second portion;
Priority among related information of beams contained in a first part of the different CSI reports is determined according to a fifth predefined rule;
The priority among the related information of the beams contained in the second part of the different CSI reports is determined according to a sixth predefined rule.
As an alternative embodiment, the discard rule includes one of:
discarding relevant information of all beams contained in the target portion;
Discarding the related information of the beam pairs with low priority in the unit of beam pairs according to the priority of the beam pairs in the target portion;
Discarding the beam related information with low priority in the beam pairs according to the priorities of the beams contained in the beam pairs in the target part by using the beam units;
wherein the target portion comprises a first portion and/or a second portion.
As an alternative embodiment, in case the target portion comprises the first portion, the discard rule further comprises:
and discarding the relevant information of all beams contained in the second part.
According to the embodiment of the application, when the terminal reports the beam related information, N pairs of beam related information can be placed in the CSI report according to the preset rule and reported, so that flexible configuration of reporting the beam related information is realized, fixed bit overhead of UCI carrying the beam related information can be reduced, reliable reporting of the beam related information is ensured, and the situation that the beam information with higher priority is lost due to larger UCI fixed load is effectively avoided.
It should be noted that, the beam reporting device provided in the embodiment of the present application is a device capable of executing the beam reporting method, and all embodiments of the beam reporting method are applicable to the device, and the same or similar beneficial effects can be achieved.
The beam reporting device in the embodiment of the application can be a device with an operating system or electronic equipment, and can also be a component, an integrated circuit or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in particular.
The beam reporting device provided by the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 to 6b, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.
Optionally, as shown in fig. 8, the embodiment of the present application further provides a communication device 800, including a processor 801, a memory 802, and a program or an instruction stored in the memory 802 and capable of running on the processor 801, for example, when the communication device 800 is a terminal, the program or the instruction is executed by the processor 801 to implement each process of the above-mentioned beam reporting method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
The embodiment of the application also provides a terminal which comprises a processor and a communication interface, wherein the processor is used for feeding back a Channel State Information (CSI) report containing the related information of N pairs of wave beams to network side equipment through the communication interface according to a preset rule. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment and can achieve the same technical effects. Specifically, fig. 9 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.
The terminal 900 includes, but is not limited to: at least some of the components of the radio frequency unit 901, the network module 902, the audio output unit 903, the input unit 904, the sensor 905, the display unit 906, the user input unit 907, the interface unit 908, the memory 909, and the processor 910.
Those skilled in the art will appreciate that the terminal 900 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 910 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 9 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.
It should be appreciated that in embodiments of the present application, the input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, with the graphics processor 9041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. Touch panel 9071, also referred to as a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 901 processes the downlink data with the processor 910; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 909 may be used to store software programs or instructions as well as various data. The memory 909 may mainly include a storage program or instruction area that may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and a storage data area. In addition, the Memory 909 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
Processor 910 may include one or more processing units; alternatively, the processor 910 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 910.
The processor 910 is configured to: according to a preset rule, feeding back a Channel State Information (CSI) report containing relevant information of N pairs of beams to network side equipment through a radio frequency unit 901;
Wherein the CSI report includes: the first part comprises relevant information of N1 pairs of beams in the N pairs of beams, N1 is smaller than or equal to N, and N1 and N are positive integers;
in the case where N1 is smaller than N, the second portion includes information about N2 pairs of beams of the N pairs of beams, and a sum of N1 and N2 is equal to N.
According to the embodiment of the application, when the terminal reports the beam related information, N pairs of beam related information can be placed in the CSI report according to the preset rule and reported, so that flexible configuration of reporting the beam related information is realized, fixed bit overhead of UCI carrying the beam related information can be reduced, reliable reporting of the beam related information is ensured, and the situation that the beam information is lost due to larger UCI fixed load is effectively avoided.
Optionally, the value of N1 is configured by the network side device through radio resource control RRC; or alternatively
And the value of N1 is determined by the terminal according to a first rule.
Optionally, the first rule includes at least one of:
the information about the beam pair with the highest layer 1 measurement value is located in the first part;
Determining the value of N1 according to the proportion of N1 in N;
the value of N1 is determined from the layer 1 measurement and the first threshold.
Optionally, the first portion further comprises: a value of N1.
Optionally, in case the first rule is predefined for a terminal, the first part comprises the value of N1.
Optionally, the first portion includes a first indication field indicating the value of N1.
Optionally, the first portion indicates a manner of determining the value of N1.
Optionally, the first portion includes a second indication field, the second indication field indicating a manner of determining the value of N1;
Or alternatively
A first indication field in the first portion for indicating a value of N1 indicates a manner of determining the value of N1.
Optionally, the information related to the beam includes at least one of a channel measurement resource indication and a layer 1 measurement value.
Optionally, the first portion indicates a first correspondence of channel measurement resource indications of the N1 pair of beams with a set of channel measurement resources;
wherein the channel measurement resource indications of the N1 pairs of beams are arranged according to a second rule.
Optionally, the first portion indicates a first correspondence between channel measurement resource indications of the N1 pair of beams and a set of channel measurement resources, including:
adding a third indication field to the first portion, the third indication field being used for indicating: the first channel measurement resources indicate a corresponding first set of channel measurement resources,
Wherein the second rule includes: the first channel measurement resource indication is arranged at the first position of all channel measurement resource indications, and other channel measurement resource indications except the first channel measurement resource indication are arranged according to a third rule;
The first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value.
Optionally, the third rule includes:
The channel measurement resource indications associated with the same channel measurement resource set are used as a group and are continuously arranged by taking the channel measurement resource set as a unit.
Optionally, the first portion indicates a first correspondence between channel measurement resource indications of the N1 pair of beams and a set of channel measurement resources, including:
Adding a fourth indication field to the first portion, the fourth indication field being used for indicating: the first channel measures the location of the resource indication;
Wherein the second rule includes: taking the channel measurement resource indications associated with the same channel measurement resource set as a group, continuously arranging the channel measurement resource sets as units, arranging the first channel measurement resource indications at the first position of the channel measurement resource set corresponding to the first channel measurement resource indications, and arranging the channel measurement resource indications of different groups according to a preset sequence;
The first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value.
Optionally, the first portion indicates a first correspondence between channel measurement resource indications of the N1 pair of beams and a set of channel measurement resources, including:
indicating an arrangement position in a beam pair through the channel measurement resource indication, and indicating a channel measurement resource set corresponding to the channel measurement resource indication;
Wherein the second rule includes: the channel measurement resource indications are arranged according to beam pairs, the first beam pair is arranged at the first position, and the channel measurement resource indications in each beam pair are arranged according to a fourth rule;
the first beam pair is a beam pair comprising a first channel measurement resource indication, which is an index of the channel measurement resource with the highest layer 1 measurement value.
Optionally, the fourth rule includes:
The channel measurement resource indications associated with the same set of channel measurement resources are located at the same location for different beam pairs.
Optionally, the method further comprises:
adding a fifth indication field to the first portion, the fifth indication field being used for indicating: the first channel measurement resource indicates a location in the first beam pair.
Optionally, the first portion includes layer 1 measurements of the N1 pair of beams.
Optionally, the mapping manner of the layer 1 measurement value of the N1 pair beam in the first portion includes one of the following:
Quantizing a first layer 1 measurement value corresponding to the first channel measurement resource indication and then placing the quantized first layer 1 measurement value in the first part; the layer 1 measured values corresponding to the channel measurement resource indications except the first channel measurement resource indication are subjected to differential quantization with the first layer 1 measured values and then are placed in the first part;
Quantizing and then placing all layer 1 measurements in a first beam pair containing a first channel measurement resource indication in the first portion; the layer 1 measured values of other beam pairs except the first beam pair are differentially quantized with the layer 1 measured values corresponding to the target channel measurement resource indication in the first beam pair and then are placed in the first part; the target channel measurement resource indication is: a channel measurement resource indication associated with the same set of channel measurement resources as the channel measurement resource indications in the other beam pairs;
determining a second layer 1 measurement value in every n beam pairs according to a first predefined rule, and quantifying the second layer 1 measurement value and then placing the quantified second layer 1 measurement value in the first part; the other layer 1 measured values except the second layer 1 measured value in the N beam pairs are subjected to differential quantization with the second layer 1 measured value and then are placed in the first part, and N1> N is more than or equal to 1;
Determining third layer 1 measurement values in every n beam pairs according to a second predefined rule, differentially quantizing the third layer 1 measurement values and first layer 1 measurement values corresponding to the first channel measurement resource indication, and then placing the third layer 1 measurement values in the first part; and the other layer 1 measured values except the third layer 1 measured value in the N beam pairs are subjected to differential quantization with the third layer 1 measured value and then are placed in the first part, and N1> N is more than or equal to 1.
Optionally, the first channel measurement resource is indicated as an index of the channel measurement resource with the highest layer 1 measurement value;
The arrangement order of the layer 1 measurement values in the first part corresponds to the arrangement order of the channel measurement resource indications to which the layer 1 measurement values belong.
Optionally, the second portion shows a second correspondence of channel measurement resource indications of the N2 pair beams with a set of channel measurement resources;
the indication mode of the second corresponding relation in the second part is the same as the indication mode of the first corresponding relation in the first part;
the first corresponding relation is as follows: the channel measurement resource indication of the N1 pair beam corresponds to the channel measurement resource set.
Optionally, the second portion comprises layer 1 measurements of the N2 pair beam;
wherein the mapping manner of the layer 1 measurement value of the N2 pair beam in the second portion may include one of the following:
The mapping mode of the layer 1 measured value of the N2 pair beam in the second part is the same as the mapping mode of the layer 1 measured value of the N1 pair beam in the first part;
And determining a fourth layer 1 measured value in the N2 pairs of beams according to a third predefined rule, wherein the fourth layer 1 measured value is quantized and then placed in the second part, and the rest layer 1 measured values except the fourth layer 1 measured value in the N2 pairs of beams are differentially quantized and then placed in the second part.
According to a fourth predefined rule, a fifth layer 1 measurement value is determined in the N2 pair of beams, the fifth layer 1 measurement value is differentially quantized with a first layer 1 measurement value corresponding to the first channel resource indication in the first portion and then placed in the second portion, and the rest layer 1 measurement values except for the fifth layer 1 measurement value in the N2 pair of beams are differentially quantized with the fifth layer 1 measurement value and then placed in the second portion.
Optionally, the processor is further configured to:
and placing the information in the CSI report on the target available uplink resource according to the priority rule and the discarding rule, and sending the information to the network side equipment.
Optionally, the priority rule includes at least one of:
The priority of the related information of the beams in the beam pair is determined according to the sequence of the layer 1 measured values, wherein the priority of the related information of the beams with high layer 1 measured values is high;
the priority of the related information of the beam pairs contained in the first part and the priority of the related information of the beam pairs contained in the second part are respectively determined according to the arrangement of the layer 1 measured values, wherein the priority of the related information of the beam pairs with high layer 1 measured values is high;
The first portion includes a higher priority of information related to the beam than the second portion;
Priority among related information of beams contained in a first part of the different CSI reports is determined according to a fifth predefined rule;
The priority among the related information of the beams contained in the second part of the different CSI reports is determined according to a sixth predefined rule.
Optionally, the discard rule includes one of:
discarding relevant information of all beams contained in the target portion;
Discarding the related information of the beam pairs with low priority in the unit of beam pairs according to the priority of the beam pairs in the target portion;
Discarding the beam related information with low priority in the beam pairs according to the priorities of the beams contained in the beam pairs in the target part by using the beam units;
wherein the target portion comprises a first portion and/or a second portion.
Optionally, in the case that the target portion includes the first portion, the discarding rule further includes:
and discarding the relevant information of all beams contained in the second part.
According to the embodiment of the application, when the terminal reports the beam related information, N pairs of beam related information can be placed in the CSI report according to the preset rule and reported, so that flexible configuration of reporting the beam related information is realized, fixed bit overhead of UCI carrying the beam related information can be reduced, safe reporting of the beam related information is ensured, and the situation that the beam information with higher priority is lost due to larger UCI fixed load is effectively avoided.
The embodiment of the application also provides a readable storage medium, and the readable storage medium stores a program or an instruction, which when executed by a processor, implements each process of the beam reporting method embodiment, and can achieve the same technical effect, so that repetition is avoided, and no further description is provided herein.
Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the beam reporting method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.